首页 > 最新文献

Chronicles of Young Scientists最新文献

英文 中文
A validated stability-indicating high performance liquid chromatographic method for moxifloxacin hydrochloride and ketorolac tromethamine eye drops and its application in pH dependent degradation kinetics 稳定性指示的高效液相色谱法测定盐酸莫西沙星酮咯酸tromethamine滴眼液及其在pH依赖性降解动力学中的应用
Pub Date : 2013-01-01 DOI: 10.4103/2229-5186.108802
J. Dave, P. J. Vyas, C. Patel
Background and Aim: A fixed dose combination of moxifloxacin hydrochloride and ketorolac tromethamine is used in ratio of 1:1 as eye drops for the treatment of the reduction of post operative inflammatory conditions of the eye. A simple, precise, and accurate High Performance Liquid Chromatographic (HPLC) method was developed and validated for determination of moxifloxacin hydrochloride and ketorolac tromethamine in eye drops. Materials and Methods: Isocratic HPLC separation was achieved on a ACE C 18 column (C 18 (5 μm, 150 mm×4.6 mm, i.d.)) using the mobile phase 10 mM potassium di-hydrogen phosphate buffer pH 4.6-Acetonitrile (75:25 v/v) at a flow rate of 1.0 mL/min. The detection was performed at 307 nm. Drugs were subjected to acid, alkali and neutral hydrolysis, oxidation and photo degradation. Moreover, the proposed HPLC method was utilized to investigate the pH dependent degradation kinetics of moxifloxacin hydrochloride and ketorolac tromethamine in buffer solutions at different pH values like 2.0, 6.8 and 9.0. Results and Conclusion: The retention time (t R ) of moxifloxacin hydrochloride and ketorolac tromethamine were 3.81±0.01 and 8.82±0.02 min, respectively. The method was linear in the concentration range of 2-20 μ/mL each for moxifloxacin hydrochloride and ketorolac tromethamine with a correlation coefficient of 0.9996 and 0.9999, respectively. The method was validated for linearity, precision, accuracy, robustness, specificity, limit of detection and limit of quantitation. The drugs could be effectively separated from different degradation products and hence the method can be used for stability analysis. Different kinetics parameters like apparent first-order rate constant, half-life and t 90 (time for 90% potency left) were calculated.
背景与目的:采用固定剂量盐酸莫西沙星与酮咯酸tromethamine按1:1的比例联合滴眼液治疗术后眼部炎症。建立了一种简便、精确、准确的高效液相色谱法测定滴眼液中盐酸莫西沙星和酮咯酸tromethamine的含量。材料与方法:采用ACE c18色谱柱(c18 (5 μm, 150 mm×4.6 mm, id)),流动相为10 mm磷酸二氢钾缓冲液pH 4.6-乙腈(75:25 v/v),流速为1.0 mL/min。检测波长为307 nm。药物经过酸、碱和中性水解、氧化和光降解。此外,采用HPLC法研究了盐酸莫西沙星和酮咯酸tromethamine在不同pH值(2.0、6.8和9.0)缓冲液中的pH依赖性降解动力学。结果与结论:盐酸莫西沙星和酮咯酸tromethamine的滞留时间(t R)分别为3.81±0.01 min和8.82±0.02 min。盐酸莫西沙星和酮洛拉克在2 ~ 20 μ/mL浓度范围内呈线性关系,相关系数分别为0.9996和0.9999。对方法进行了线性、精密度、准确度、鲁棒性、特异性、检出限和定量限的验证。该方法能有效地将药物从不同的降解产物中分离出来,可用于稳定性分析。计算了不同的动力学参数,如表观一级速率常数、半衰期和t90(剩余90%效价的时间)。
{"title":"A validated stability-indicating high performance liquid chromatographic method for moxifloxacin hydrochloride and ketorolac tromethamine eye drops and its application in pH dependent degradation kinetics","authors":"J. Dave, P. J. Vyas, C. Patel","doi":"10.4103/2229-5186.108802","DOIUrl":"https://doi.org/10.4103/2229-5186.108802","url":null,"abstract":"Background and Aim: A fixed dose combination of moxifloxacin hydrochloride and ketorolac tromethamine is used in ratio of 1:1 as eye drops for the treatment of the reduction of post operative inflammatory conditions of the eye. A simple, precise, and accurate High Performance Liquid Chromatographic (HPLC) method was developed and validated for determination of moxifloxacin hydrochloride and ketorolac tromethamine in eye drops. Materials and Methods: Isocratic HPLC separation was achieved on a ACE C 18 column (C 18 (5 μm, 150 mm×4.6 mm, i.d.)) using the mobile phase 10 mM potassium di-hydrogen phosphate buffer pH 4.6-Acetonitrile (75:25 v/v) at a flow rate of 1.0 mL/min. The detection was performed at 307 nm. Drugs were subjected to acid, alkali and neutral hydrolysis, oxidation and photo degradation. Moreover, the proposed HPLC method was utilized to investigate the pH dependent degradation kinetics of moxifloxacin hydrochloride and ketorolac tromethamine in buffer solutions at different pH values like 2.0, 6.8 and 9.0. Results and Conclusion: The retention time (t R ) of moxifloxacin hydrochloride and ketorolac tromethamine were 3.81±0.01 and 8.82±0.02 min, respectively. The method was linear in the concentration range of 2-20 μ/mL each for moxifloxacin hydrochloride and ketorolac tromethamine with a correlation coefficient of 0.9996 and 0.9999, respectively. The method was validated for linearity, precision, accuracy, robustness, specificity, limit of detection and limit of quantitation. The drugs could be effectively separated from different degradation products and hence the method can be used for stability analysis. Different kinetics parameters like apparent first-order rate constant, half-life and t 90 (time for 90% potency left) were calculated.","PeriodicalId":10187,"journal":{"name":"Chronicles of Young Scientists","volume":"29 1","pages":"24"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90382959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Preparation of molecularly imprinted polymers for heptachlor: An organochlorine pesticide 七氯农药分子印迹聚合物的制备
Pub Date : 2013-01-01 DOI: 10.4103/2229-5186.108806
K. Singh, A. Pasha, B. A. Rani
Background: Molecular Imprinting technology is a promising technique for creating recognition elements for selected compounds and has been successfully applied for synthesis of Environmental pollutants such as pesticides. Aim: Synthetic binding polymers were prepared by non-covalent imprinting technique using bulk polymerization method for heptachlor, which is an organochlorine pesticide. Materials and Methods: Three functional monomers and 2 cross-linkers were used for molecular imprinting. The molecularly imprinted polymers (MIPs) obtained were subsequently characterized in detail with rebinding investigation using batch rebinding. The results indicate that the imprinting was successfully done for heptachlor using methacrylic acid (MAA) as functional monomer and ethylene glycol dimethacrylate (EDMA) as cross-linker. Results: The affinity order from rebinding results for the 3 polymers is heptachlor-co-MAA-co-EDMA > heptachlor-co-4-VP-co-DVB > heptachlor-co-Styrene-co-DVB. UV-visible spectrophotometric study for interaction of heptachlor with MAA in pre-polymerization mixture suggests the formation of H-bonding also contributing to the formation of good imprint. Conclusion: Molecular Imprinted polymers can be used as detection systems and as clean up materials for pesticides.
背景:分子印迹技术是一种很有前途的化合物识别元件的合成技术,已成功应用于农药等环境污染物的合成。目的:采用本体聚合法,采用非共价印迹技术合成七氯有机氯农药的结合聚合物。材料与方法:采用3种功能单体和2种交联剂进行分子印迹。获得的分子印迹聚合物(MIPs)随后通过批重结合研究进行了详细的表征。结果表明,以甲基丙烯酸(MAA)为功能单体,乙二醇二甲基丙烯酸酯(EDMA)为交联剂,成功地印迹了七氯。结果:3种聚合物的重结合亲合力顺序为:七氯-co- maa -co- edma >七氯-co-4- vp -co- dvb >七氯-co-苯乙烯-co- dvb。紫外可见分光光度法对预聚合混合物中七氯与MAA相互作用的研究表明,氢键的形成也有助于形成良好的印记。结论:分子印迹聚合物可作为农药的检测系统和清洁材料。
{"title":"Preparation of molecularly imprinted polymers for heptachlor: An organochlorine pesticide","authors":"K. Singh, A. Pasha, B. A. Rani","doi":"10.4103/2229-5186.108806","DOIUrl":"https://doi.org/10.4103/2229-5186.108806","url":null,"abstract":"Background: Molecular Imprinting technology is a promising technique for creating recognition elements for selected compounds and has been successfully applied for synthesis of Environmental pollutants such as pesticides. Aim: Synthetic binding polymers were prepared by non-covalent imprinting technique using bulk polymerization method for heptachlor, which is an organochlorine pesticide. Materials and Methods: Three functional monomers and 2 cross-linkers were used for molecular imprinting. The molecularly imprinted polymers (MIPs) obtained were subsequently characterized in detail with rebinding investigation using batch rebinding. The results indicate that the imprinting was successfully done for heptachlor using methacrylic acid (MAA) as functional monomer and ethylene glycol dimethacrylate (EDMA) as cross-linker. Results: The affinity order from rebinding results for the 3 polymers is heptachlor-co-MAA-co-EDMA > heptachlor-co-4-VP-co-DVB > heptachlor-co-Styrene-co-DVB. UV-visible spectrophotometric study for interaction of heptachlor with MAA in pre-polymerization mixture suggests the formation of H-bonding also contributing to the formation of good imprint. Conclusion: Molecular Imprinted polymers can be used as detection systems and as clean up materials for pesticides.","PeriodicalId":10187,"journal":{"name":"Chronicles of Young Scientists","volume":"12 1","pages":"46"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77954541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Beneficial effects of co-administration of PPAR-γ agonist with melatonin on cardiovascular complications associated with diabetes PPAR-γ激动剂与褪黑激素联合使用对糖尿病相关心血管并发症的有益影响
Pub Date : 2013-01-01 DOI: 10.4103/2229-5186.108809
Y. Ahire, M. Ghaisas, P. Dandawate, S. Gandhi
Aim: Effect of PPAR-g agonists, Thiazolidinediones, in combination with melatonin was studied for cardiovascular complications associated with diabetes. Materials and Methods: Diabetic rats were treated with combination of pioglitazone (10 mg/kg/day p.o.) or rosiglitazone (5 mg/kg/day p.o.) with melatonin (10 mg/kg/day p.o.) for 7 weeks. The biochemical parameters, serum glucose, triglyceride, total cholesterol, HDL-cholesterol, AST, LDH and LDL-cholesterol levels were evaluated at the end of 7 weeks. Also cardiovascular parameters like atherogenic index, blood pressure, hisotology of heart were done. Results and Conclusions: The combination treated groups, pioglitazone plus melatonin (PM) and rosiglitazone plus melatonin (RM), showed significant decrease in the blood pressure when compared with diabetic control group. The level of cell injury markers AST and LDH was normalized in the combination groups PM and RM along with significant decrease in the atherogenic index. In the biochemical parameters, the serum glucose, triglyceride, total cholesterol, HDL-cholesterol, and LDL-cholesterol levels were significantly lowered in the combination groups. There was significant inhibition of the myonecrosis, reduction in the infiltration and inflammatory cells, and vacuolar changes when compared with diabetic control. The combination treated groups also proved to be effective in normalizing the levels of SOD, GSH, catalase, and LPO in heart homogenates when compared with diabetic control as well as pioglitazone, rosiglitazone, and melatonin-alone-treated groups. Hence, it may be concluded that the combination of PPAR-g agonists, thiazolidinediones, with melatonin may be beneficial in the treatment of diabetes-induced cardiovascular complications.
目的:研究PPAR-g激动剂噻唑烷二酮联合褪黑激素治疗糖尿病相关心血管并发症的效果。材料与方法:采用吡格列酮(10 mg/kg/d, p.o)或罗格列酮(5 mg/kg/d, p.o)联合褪黑素(10 mg/kg/d, p.o)治疗糖尿病大鼠,疗程7周。7周后测定各组生化指标,血清葡萄糖、甘油三酯、总胆固醇、高密度脂蛋白胆固醇、AST、LDH和ldl -胆固醇水平。心血管参数如动脉粥样硬化指数,血压,心脏组织学检查。结果与结论:吡格列酮联合褪黑激素(PM)和罗格列酮联合褪黑激素(RM)治疗组与糖尿病对照组相比,血压明显降低。PM、RM联合组细胞损伤标志物AST、LDH水平恢复正常,动脉粥样硬化指数明显降低。在生化指标方面,联合用药组血清葡萄糖、甘油三酯、总胆固醇、高密度脂蛋白胆固醇、低密度脂蛋白胆固醇水平均显著降低。与糖尿病对照组相比,有明显的肌坏死抑制,浸润和炎症细胞减少,空泡改变。与糖尿病对照组、吡格列酮、罗格列酮和褪黑素单独治疗组相比,联合治疗组在使心脏匀浆中SOD、GSH、过氧化氢酶和LPO水平正常化方面也被证明是有效的。因此,可以得出结论,PPAR-g激动剂,噻唑烷二酮与褪黑激素联合使用可能有益于治疗糖尿病引起的心血管并发症。
{"title":"Beneficial effects of co-administration of PPAR-γ agonist with melatonin on cardiovascular complications associated with diabetes","authors":"Y. Ahire, M. Ghaisas, P. Dandawate, S. Gandhi","doi":"10.4103/2229-5186.108809","DOIUrl":"https://doi.org/10.4103/2229-5186.108809","url":null,"abstract":"Aim: Effect of PPAR-g agonists, Thiazolidinediones, in combination with melatonin was studied for cardiovascular complications associated with diabetes. Materials and Methods: Diabetic rats were treated with combination of pioglitazone (10 mg/kg/day p.o.) or rosiglitazone (5 mg/kg/day p.o.) with melatonin (10 mg/kg/day p.o.) for 7 weeks. The biochemical parameters, serum glucose, triglyceride, total cholesterol, HDL-cholesterol, AST, LDH and LDL-cholesterol levels were evaluated at the end of 7 weeks. Also cardiovascular parameters like atherogenic index, blood pressure, hisotology of heart were done. Results and Conclusions: The combination treated groups, pioglitazone plus melatonin (PM) and rosiglitazone plus melatonin (RM), showed significant decrease in the blood pressure when compared with diabetic control group. The level of cell injury markers AST and LDH was normalized in the combination groups PM and RM along with significant decrease in the atherogenic index. In the biochemical parameters, the serum glucose, triglyceride, total cholesterol, HDL-cholesterol, and LDL-cholesterol levels were significantly lowered in the combination groups. There was significant inhibition of the myonecrosis, reduction in the infiltration and inflammatory cells, and vacuolar changes when compared with diabetic control. The combination treated groups also proved to be effective in normalizing the levels of SOD, GSH, catalase, and LPO in heart homogenates when compared with diabetic control as well as pioglitazone, rosiglitazone, and melatonin-alone-treated groups. Hence, it may be concluded that the combination of PPAR-g agonists, thiazolidinediones, with melatonin may be beneficial in the treatment of diabetes-induced cardiovascular complications.","PeriodicalId":10187,"journal":{"name":"Chronicles of Young Scientists","volume":"14 1","pages":"59"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74551298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Psychosocial problems in thalassemic adolescents and young adults 地中海贫血青少年和青年的社会心理问题
Pub Date : 2013-01-01 DOI: 10.4103/2229-5186.108800
Manoj Jain, A. Bagul, Ashok Porwal
Background: With the availability of better treatment regimen, life span of thalassemic patients is increasing. Chronic nature of thalassemia and its intensive and demanding treatment result in significant psychologic burden on the patients and their families. A lot has been studied about beta-thalassemia major but little attention has been paid to the psychological aspect of this disease. Hence, the study was planned to analyse the psychosocial problems in thalassemic adolescents and young adults. Materials and Methods: This was a cross-sectional study, conducted from January 2007 to March 2008 in thalassemic day-care centre of a tertiary care teaching hospital. Fifty four thalassemic children and controls above 9 years of age were enrolled. Psychosocial assessment done with assessment of Finer Psychopathology using ICMR Symptom checklist (ICMR task force, 1983). The prevalence of various problems was calculated and compared with controls. Student's t-test and Chi-square test were used for testing differences in variables. Results: Patients were divided into three groups - Group A (10-15 years, 30 patients); Group B (15-20 years, 18 patients), and Group C (20-25 years, 6 patients). In group A, behavior problems were common (12 patients -40%) (P Conclusion: Our findings support the hypothesis that psychosocial problems are more in thalassemic adolescents and young adults. Psychosocial aspects need to be addressed in the overall treatment of children with thalassemia.
背景:随着更好的治疗方案的出现,地中海贫血患者的寿命越来越长。地中海贫血的慢性性质及其密集和苛刻的治疗给患者及其家属带来了巨大的心理负担。人们对重度-地中海贫血进行了大量的研究,但很少注意到这种疾病的心理方面。因此,该研究计划分析地中海贫血青少年和年轻人的社会心理问题。材料和方法:这是一项横断面研究,于2007年1月至2008年3月在一家三级护理教学医院的地中海贫血日托中心进行。54名9岁以上的地中海贫血儿童和对照组被纳入研究。使用ICMR症状检查表(ICMR task force, 1983)对精细精神病理学进行心理社会评估。计算各种问题的发生率,并与对照组进行比较。变量间差异的检验采用学生t检验和卡方检验。结果:患者分为三组:A组(10 ~ 15岁,30例);B组15 ~ 20岁,18例;C组20 ~ 25岁,6例。在A组中,行为问题很常见(12例-40%)(P结论:我们的研究结果支持了心理社会问题在地中海贫血青少年和年轻人中更多的假设。在对地中海贫血儿童的全面治疗中,需要处理心理社会方面的问题。
{"title":"Psychosocial problems in thalassemic adolescents and young adults","authors":"Manoj Jain, A. Bagul, Ashok Porwal","doi":"10.4103/2229-5186.108800","DOIUrl":"https://doi.org/10.4103/2229-5186.108800","url":null,"abstract":"Background: With the availability of better treatment regimen, life span of thalassemic patients is increasing. Chronic nature of thalassemia and its intensive and demanding treatment result in significant psychologic burden on the patients and their families. A lot has been studied about beta-thalassemia major but little attention has been paid to the psychological aspect of this disease. Hence, the study was planned to analyse the psychosocial problems in thalassemic adolescents and young adults. Materials and Methods: This was a cross-sectional study, conducted from January 2007 to March 2008 in thalassemic day-care centre of a tertiary care teaching hospital. Fifty four thalassemic children and controls above 9 years of age were enrolled. Psychosocial assessment done with assessment of Finer Psychopathology using ICMR Symptom checklist (ICMR task force, 1983). The prevalence of various problems was calculated and compared with controls. Student's t-test and Chi-square test were used for testing differences in variables. Results: Patients were divided into three groups - Group A (10-15 years, 30 patients); Group B (15-20 years, 18 patients), and Group C (20-25 years, 6 patients). In group A, behavior problems were common (12 patients -40%) (P Conclusion: Our findings support the hypothesis that psychosocial problems are more in thalassemic adolescents and young adults. Psychosocial aspects need to be addressed in the overall treatment of children with thalassemia.","PeriodicalId":10187,"journal":{"name":"Chronicles of Young Scientists","volume":"9 1","pages":"21"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82021898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 31
Screening of PEO1 and mitochondrial genes in sporadic cases of ophthalmoplegia 散发性眼麻痹患者PEO1及线粒体基因的筛选
Pub Date : 2013-01-01 DOI: 10.4103/2229-5186.108805
Ashok Singh, A. Mitra, Pratibha Mishra, Ajit K Paul, Sharad Sharma, S. Rath
Aim: To screen the gene PEO1 and mitochondrial genes in sporadic cases of rare progressive external ophthalmoplegia (PEO) patients from North India. Materials and Methods: The nuclear and mitochondrial DNA was isolated from the sporadic PEO patients, and bi-directional sequencing was done in gene PEO1 and mitochondrial genes to capture the mutations relevant to the PEO disease. Results: In the present study, none of the mutations were reported in the coding region of PEO1 gene, while four mutations were observed in mtDNA genes, namely NADH dehydrogenase subunit 2 (ND2), tRNA-Trp, non-coding nucleotides (MT-NC3), and NADH dehydrogenase subunit 5 (MT-ND5). Our study revealed two novel mutations, one in tRNA-Trp and the other in ND2 gene, which may have role in sporadic cases of PEO patients. The absence of novel conserved mutation in tRNA-Trp gene was also confirmed in 110 ethnically matched controls. Conclusion: The sporadic case of PEO disease is not associated with mutations in nuclear gene PEO1 . The novel mutation in tRNA-Trp gene and ND2 mutations may have role in the disease.
目的:筛选印度北部散发性罕见进行性外眼肌麻痹(PEO)患者的pe1基因和线粒体基因。材料与方法:分离散在PEO患者的细胞核和线粒体DNA,对PEO基因1和线粒体基因进行双向测序,捕捉与PEO疾病相关的突变。结果:本研究中,在PEO1基因编码区未发现突变,而在mtDNA基因中发现4个突变,分别是NADH脱氢酶亚基2 (ND2)、tRNA-Trp、非编码核苷酸(MT-NC3)和NADH脱氢酶亚基5 (MT-ND5)。我们的研究发现了两个新的突变,一个是tRNA-Trp基因,另一个是ND2基因,这可能在散发的PEO患者中起作用。在110个种族匹配的对照中也证实了tRNA-Trp基因不存在新的保守突变。结论:散发性PEO病与pe1核基因突变无关。tRNA-Trp基因的新突变和ND2突变可能与该病有关。
{"title":"Screening of PEO1 and mitochondrial genes in sporadic cases of ophthalmoplegia","authors":"Ashok Singh, A. Mitra, Pratibha Mishra, Ajit K Paul, Sharad Sharma, S. Rath","doi":"10.4103/2229-5186.108805","DOIUrl":"https://doi.org/10.4103/2229-5186.108805","url":null,"abstract":"Aim: To screen the gene PEO1 and mitochondrial genes in sporadic cases of rare progressive external ophthalmoplegia (PEO) patients from North India. Materials and Methods: The nuclear and mitochondrial DNA was isolated from the sporadic PEO patients, and bi-directional sequencing was done in gene PEO1 and mitochondrial genes to capture the mutations relevant to the PEO disease. Results: In the present study, none of the mutations were reported in the coding region of PEO1 gene, while four mutations were observed in mtDNA genes, namely NADH dehydrogenase subunit 2 (ND2), tRNA-Trp, non-coding nucleotides (MT-NC3), and NADH dehydrogenase subunit 5 (MT-ND5). Our study revealed two novel mutations, one in tRNA-Trp and the other in ND2 gene, which may have role in sporadic cases of PEO patients. The absence of novel conserved mutation in tRNA-Trp gene was also confirmed in 110 ethnically matched controls. Conclusion: The sporadic case of PEO disease is not associated with mutations in nuclear gene PEO1 . The novel mutation in tRNA-Trp gene and ND2 mutations may have role in the disease.","PeriodicalId":10187,"journal":{"name":"Chronicles of Young Scientists","volume":"14 1","pages":"40"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80040713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimation of citicoline sodium in tablets by difference spectrophotometric method 差示分光光度法测定片剂中胞胆碱钠的含量
Pub Date : 2013-01-01 DOI: 10.4103/2229-5186.108799
S. Panda, Ganeswar Mohanta, B. Kumar
Aim: The present work deals with development and validation of a novel, precise, and accurate spectrophotometric method for the estimation of citicoline sodium (CTS) in tablets. This spectrophotometric method is based on the principle that CTS shows two different forms that differs in the absorption spectra in basic and acidic medium. Materials and Methods: The present work was being carried out on Shimadzu 1800 Double Beam UV-visible spectrophotometer. Difference spectra were generated using 10 mm quartz cells over the range of 200-400 nm. Solvents used were 0.1 M NaOH and 0.1 M HCl. Results: The maxima and minima in the difference spectra of CTS were found to be 239 nm and 283 nm, respectively. Amplitude was calculated from the maxima and minima of spectrum. The drug follows linearity in the range of 1-50 μ/ml (R 2 = 0.999). The average % recovery from the tablet formulation was found to be 98.47%. The method was validated as per International Conference on Harmonization of Technical Requirements for Registration of Pharmaceuticals for Human Use: ICH Q2(R1) Validation of Analytical Procedures: Text and Methodology guidelines. Conclusion: This method is simple and inexpensive. Hence it can be applied for determination of the drug in pharmaceutical dosage forms.
目的:建立一种新的、精确的、准确的测定片中胞胆碱钠(CTS)含量的分光光度法。这种分光光度法是基于CTS在碱性和酸性介质中显示两种不同形式的吸收光谱的原理。材料与方法:本工作在岛津1800双光束紫外可见分光光度计上进行。使用10 mm石英电池在200-400 nm范围内生成差分光谱。所用溶剂为0.1 M NaOH和0.1 M HCl。结果:CTS差异光谱的最大值为239 nm,最小值为283 nm。振幅由频谱的最大值和最小值计算。在1 ~ 50 μ/ml范围内呈线性关系(r2 = 0.999)。该片剂的平均回收率为98.47%。该方法按照人用药品注册技术要求国际协调会议:ICH Q2(R1)分析方法验证:文本和方法学指南进行验证。结论:该方法操作简便,成本低廉。因此,可用于药物剂型的测定。
{"title":"Estimation of citicoline sodium in tablets by difference spectrophotometric method","authors":"S. Panda, Ganeswar Mohanta, B. Kumar","doi":"10.4103/2229-5186.108799","DOIUrl":"https://doi.org/10.4103/2229-5186.108799","url":null,"abstract":"Aim: The present work deals with development and validation of a novel, precise, and accurate spectrophotometric method for the estimation of citicoline sodium (CTS) in tablets. This spectrophotometric method is based on the principle that CTS shows two different forms that differs in the absorption spectra in basic and acidic medium. Materials and Methods: The present work was being carried out on Shimadzu 1800 Double Beam UV-visible spectrophotometer. Difference spectra were generated using 10 mm quartz cells over the range of 200-400 nm. Solvents used were 0.1 M NaOH and 0.1 M HCl. Results: The maxima and minima in the difference spectra of CTS were found to be 239 nm and 283 nm, respectively. Amplitude was calculated from the maxima and minima of spectrum. The drug follows linearity in the range of 1-50 μ/ml (R 2 = 0.999). The average % recovery from the tablet formulation was found to be 98.47%. The method was validated as per International Conference on Harmonization of Technical Requirements for Registration of Pharmaceuticals for Human Use: ICH Q2(R1) Validation of Analytical Procedures: Text and Methodology guidelines. Conclusion: This method is simple and inexpensive. Hence it can be applied for determination of the drug in pharmaceutical dosage forms.","PeriodicalId":10187,"journal":{"name":"Chronicles of Young Scientists","volume":"45 1","pages":"18"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79252491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Antioxidant potential of Viscum articulatum burm 关节胶烧伤的抗氧化潜力
Pub Date : 2013-01-01 DOI: 10.4103/2229-5186.108803
K. Geetha, V. Bindu, V. Murugan
Background: Free radical stress leads to tissue injury and progression of disease conditions such as arthritis, hemorrhagic shock, atherosclerosis, diabetes, hepatic injury, aging and ischemia, reperfusion injury of many tissues, gastritis, tumor promotion, neurodegenerative diseases, and carcinogenesis. Safer antioxidants suitable for long term use are needed to prevent or stop the progression of free radical mediated disorders. Viscum articulatum is traditionally used for various oxidative stress induced disorders including liver disorders. Aims: The present study investigated antioxidant activities of the methanolic extract of Viscum articulatum in in vivo and in vitro models to provide scientific basis for the traditional usage of this plant. Materials and Methods: The in vitro antioxidant activity was evaluated by determining the ability of the extract to scavenge 2, 2-diphenyl-2-picrylhydrazyl (DPPH), nitric oxide, 2, 2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), and hydrogen peroxide (H 2 O 2 ) which were assessed using spectroscopic methods. Results: The extract showed promising dose dependant free radical scavenging property in all the methods used. The extract effectively increased the superoxide dismutase and catalase activity and decreased lipid peroxidation in the treated groups indicating in vivo antioxidant activity. The extract also effectively decreased the serum levels of SGOT, SGPT, SALP, and total protein levels compared to toxicant control rats. Conclusion: The results obtained from this study indicate that Viscum articulatum is a potential source of antioxidant which would help in preventing many free radical mediated diseases.
背景:自由基应激导致组织损伤和疾病进展,如关节炎、失血性休克、动脉粥样硬化、糖尿病、肝损伤、衰老和许多组织缺血、再灌注损伤、胃炎、肿瘤促进、神经退行性疾病和癌变。需要更安全的抗氧化剂,适合长期使用,以防止或阻止自由基介导的疾病的进展。关节脂传统上用于各种氧化应激引起的疾病,包括肝脏疾病。目的:通过体内和体外模型实验,研究骨粘醇提物的抗氧化活性,为骨粘的传统利用提供科学依据。材料与方法:采用波谱法测定提取物对2,2 -二苯基-2-吡啶肼(DPPH)、一氧化氮、2,2 -氮唑(3-乙基苯并噻唑-6-磺酸)二铵盐(ABTS)和过氧化氢(h2o2)的清除能力,评价其体外抗氧化活性。结果:该提取物对自由基的清除作用呈剂量依赖性。该提取物有效提高了处理组的超氧化物歧化酶和过氧化氢酶活性,降低了脂质过氧化,显示出体内抗氧化活性。与毒性对照大鼠相比,该提取物还能有效降低血清SGOT、SGPT、SALP水平和总蛋白水平。结论:关节骨是抗氧化剂的潜在来源,对预防多种自由基介导的疾病有一定的作用。
{"title":"Antioxidant potential of Viscum articulatum burm","authors":"K. Geetha, V. Bindu, V. Murugan","doi":"10.4103/2229-5186.108803","DOIUrl":"https://doi.org/10.4103/2229-5186.108803","url":null,"abstract":"Background: Free radical stress leads to tissue injury and progression of disease conditions such as arthritis, hemorrhagic shock, atherosclerosis, diabetes, hepatic injury, aging and ischemia, reperfusion injury of many tissues, gastritis, tumor promotion, neurodegenerative diseases, and carcinogenesis. Safer antioxidants suitable for long term use are needed to prevent or stop the progression of free radical mediated disorders. Viscum articulatum is traditionally used for various oxidative stress induced disorders including liver disorders. Aims: The present study investigated antioxidant activities of the methanolic extract of Viscum articulatum in in vivo and in vitro models to provide scientific basis for the traditional usage of this plant. Materials and Methods: The in vitro antioxidant activity was evaluated by determining the ability of the extract to scavenge 2, 2-diphenyl-2-picrylhydrazyl (DPPH), nitric oxide, 2, 2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), and hydrogen peroxide (H 2 O 2 ) which were assessed using spectroscopic methods. Results: The extract showed promising dose dependant free radical scavenging property in all the methods used. The extract effectively increased the superoxide dismutase and catalase activity and decreased lipid peroxidation in the treated groups indicating in vivo antioxidant activity. The extract also effectively decreased the serum levels of SGOT, SGPT, SALP, and total protein levels compared to toxicant control rats. Conclusion: The results obtained from this study indicate that Viscum articulatum is a potential source of antioxidant which would help in preventing many free radical mediated diseases.","PeriodicalId":10187,"journal":{"name":"Chronicles of Young Scientists","volume":"27 1","pages":"32"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74767529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Development of structurally diverse antitubercular molecules with pyridazine ring 结构多样的含吡嗪环抗结核分子的研制
Pub Date : 2013-01-01 DOI: 10.4103/2229-5186.108796
M. Asif, Anita Singh, Lakshmayya
There has been considerable interest in the development of new molecule with antibacterial activities particularly against tuberculosis because mycobacterium species have developed resistance against currently used drugs, their toxic effect, and longer duration of therapy. The pyridazine derivatives are an important class of compound for new drugs research and development. Therefore, many researchers have synthesized these compounds as target structures and evaluated their antitubercular activity. These observations have been guiding in the development of new molecules that possess potent antitubercular activity with minimum side effects or effective against multidrug-resistant, extensively drug-resistant mycobacterium strains, and also in patient co-infected with HIV/AIDS.
人们对开发具有抗菌活性的新分子非常感兴趣,特别是对结核病,因为分枝杆菌物种已经对目前使用的药物产生了耐药性,它们的毒性作用和更长的治疗时间。吡嗪类化合物是一类重要的新药研究与开发化合物。因此,许多研究者合成了这些化合物作为靶结构,并对其抗结核活性进行了评价。这些观察结果对开发具有有效抗结核活性的新分子具有指导作用,这些新分子具有最小的副作用或对多重耐药、广泛耐药分枝杆菌菌株有效,并且对合并感染艾滋病毒/艾滋病的患者也有效。
{"title":"Development of structurally diverse antitubercular molecules with pyridazine ring","authors":"M. Asif, Anita Singh, Lakshmayya","doi":"10.4103/2229-5186.108796","DOIUrl":"https://doi.org/10.4103/2229-5186.108796","url":null,"abstract":"There has been considerable interest in the development of new molecule with antibacterial activities particularly against tuberculosis because mycobacterium species have developed resistance against currently used drugs, their toxic effect, and longer duration of therapy. The pyridazine derivatives are an important class of compound for new drugs research and development. Therefore, many researchers have synthesized these compounds as target structures and evaluated their antitubercular activity. These observations have been guiding in the development of new molecules that possess potent antitubercular activity with minimum side effects or effective against multidrug-resistant, extensively drug-resistant mycobacterium strains, and also in patient co-infected with HIV/AIDS.","PeriodicalId":10187,"journal":{"name":"Chronicles of Young Scientists","volume":"14 1","pages":"1"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89427579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Simultaneous estimation of olmesartan medoxomil and indapamide from bulk and commercial products using a validated reverse phase high performance liquid chromatographic technique 使用有效的反相高效液相色谱技术同时估计散装和商业产品中的奥美沙坦美多索米和吲达帕胺
Pub Date : 2013-01-01 DOI: 10.4103/2229-5186.108810
A. Sheth, K. Patel, R. Badmanaban, N. Doshi, N. Shah
Aim: A simple, rapid, accurate, precise and economical reverse phase high performance liquid chromatographicmethod is developed for simultaneous separation and quantification of two anti-hypertensive drugs, viz., olmesartan medoxomil and indapamide. Materials and Methods: The separation of both the drugs was achieved on ACE C 18 AR column (250 × 4.6 mm id, 5 μm particle size) column using a mobile phase of sodium perchlorate and triethylamine buffer solution (at pH 3): Acetonitrile (60:40 v/v). The flow rate was 1 ml/min and detection was done at 280 nm. Results: The retention time for indapamide was 5.3 min and for olmesartan medoxomil was 6.8 min. Olmesartan medoxomil and indapamide showed a linear response in the concentration range of 50-300 μg/ml and 3.75-22.5 μg/ml respectively. The correlation co-efficients for olmesartan medoxomil and indapamide were 0.9999 and 0.9998 respectively. The percentage recoveries obtained forolmesartan medoxomil and indapamide ranges from 99.3% to 99.8% and 99.7% to 100.9% respectively. The results of the analysis have been validated as per International conference on Harmonisation (ICH) guidelines. Validation results indicated that method shows satisfactory linearity, accuracy, precision, and ruggedness. Conclusion: The extremely low flow rate, simple mobile phase composition makes this method cost effective, rapid, and non-tedious and can also be successfully employed for simultaneous estimation of both drugs in commercial products.
目的:建立一种简便、快速、准确、精密度高、经济的反相高效液相色谱同时分离、定量两种降压药奥美沙坦美多索米和吲达帕胺的方法。材料与方法:两种药物在ACE C 18 AR柱(250 × 4.6 mm id, 5 μm粒径)上分离,流动相为高氯酸钠-三乙胺缓冲溶液(pH 3):乙腈(60:40 v/v)。流速为1 ml/min,检测波长为280 nm。结果:吲达帕胺的保留时间为5.3 min,奥美沙坦美多索米的保留时间为6.8 min,奥美沙坦美多索米和吲达帕胺在50 ~ 300 μg/ml和3.75 ~ 22.5 μg/ml范围内呈线性关系。奥美沙坦与吲达帕胺的相关系数分别为0.9999和0.9998。回收率为99.3% ~ 99.8%,吲达帕胺为99.7% ~ 100.9%。分析结果已根据国际协调会议(ICH)指南进行验证。验证结果表明,该方法具有良好的线性度、准确度、精密度和耐用性。结论:该方法具有流速极低、流动相组成简单、成本低、快速、不繁琐等优点,可成功用于两种药物在商品中的同时测定。
{"title":"Simultaneous estimation of olmesartan medoxomil and indapamide from bulk and commercial products using a validated reverse phase high performance liquid chromatographic technique","authors":"A. Sheth, K. Patel, R. Badmanaban, N. Doshi, N. Shah","doi":"10.4103/2229-5186.108810","DOIUrl":"https://doi.org/10.4103/2229-5186.108810","url":null,"abstract":"Aim: A simple, rapid, accurate, precise and economical reverse phase high performance liquid chromatographicmethod is developed for simultaneous separation and quantification of two anti-hypertensive drugs, viz., olmesartan medoxomil and indapamide. Materials and Methods: The separation of both the drugs was achieved on ACE C 18 AR column (250 × 4.6 mm id, 5 μm particle size) column using a mobile phase of sodium perchlorate and triethylamine buffer solution (at pH 3): Acetonitrile (60:40 v/v). The flow rate was 1 ml/min and detection was done at 280 nm. Results: The retention time for indapamide was 5.3 min and for olmesartan medoxomil was 6.8 min. Olmesartan medoxomil and indapamide showed a linear response in the concentration range of 50-300 μg/ml and 3.75-22.5 μg/ml respectively. The correlation co-efficients for olmesartan medoxomil and indapamide were 0.9999 and 0.9998 respectively. The percentage recoveries obtained forolmesartan medoxomil and indapamide ranges from 99.3% to 99.8% and 99.7% to 100.9% respectively. The results of the analysis have been validated as per International conference on Harmonisation (ICH) guidelines. Validation results indicated that method shows satisfactory linearity, accuracy, precision, and ruggedness. Conclusion: The extremely low flow rate, simple mobile phase composition makes this method cost effective, rapid, and non-tedious and can also be successfully employed for simultaneous estimation of both drugs in commercial products.","PeriodicalId":10187,"journal":{"name":"Chronicles of Young Scientists","volume":"1 1","pages":"69"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86995555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Cross-contamination in dentistry: A comprehensive overview 牙科交叉污染:全面概述
Pub Date : 2013-01-01 DOI: 10.4103/2229-5186.108807
Sagar J. Abichandani, R. Nadiger
Introduction: Cross-contamination and cross-infection can occur by direct contact with micro-organisms, indirect contact with contaminated objects, droplet transmission, and inhalation of airborne pathogens. In dentistry, operatory surfaces can routinely become contaminated with patient saliva, blood, and other fluids during treatment. Aims and Objectives: This review is aimed to identify cross-contamination and spread of infection by various means and the appropriate preventive measures to be implemented. This review will also highlight the various aspects that are neglected in various dental schools/dental practice or any dental set up that potentiate cross-contamination ultimately affecting the dentist, dental team and the patients. Materials and Methods: A review of the dental literature concerning cross-contamination was performed. Material appearing in the literature before 1996 was reviewed as exhaustively as possible and materials after 1996 were reviewed electronically. In Medline, key words like cross-contamination, sterilization, asepsis, infection, infection control, prevention were used in various combinations to obtain a potential reference for review. A total of 2245 English Language titles were found, many were repeated due to recurring searches. The headings were shortlisted and reviewed for detailed examination. Results: A comprehensive review to evaluate the methods of preventing cross-contamination in dentistry involving various aspects and challenges encountered in a dental set up was constructed which was missing in the references of the review. Conclusions: Awareness and the necessary precautions play a pivotal role in preventing the occurrence of cross-contamination. It is the responsibility of the entire dental team to work in unison to prevent the menace of cross-contamination and spread of infection.
导读:直接接触微生物、间接接触被污染物体、飞沫传播、吸入空气传播病原体等均可发生交叉污染和交叉感染。在牙科治疗中,手术表面通常会被患者唾液、血液和其他液体污染。目的和目的:本综述旨在通过各种途径识别交叉污染和感染传播,并采取适当的预防措施。本综述还将强调在各种牙科学校/牙科实践或任何牙科机构中被忽视的各种方面,这些方面可能导致交叉污染,最终影响牙医、牙科团队和患者。材料和方法:回顾了有关交叉污染的牙科文献。1996年之前出现在文献中的材料被尽可能详尽地审查,1996年之后的材料被电子审查。在Medline中,交叉污染、灭菌、无菌、感染、感染控制、预防等关键词以不同的组合方式使用,以获得可能的复习参考。总共发现了2245个英文标题,其中许多是由于重复搜索而重复的。这些标题已被列入候选名单,并进行了详细审查。结果:对预防交叉污染的方法进行了综合评价,涉及牙科机构的各个方面和遇到的挑战,这是文献中所缺少的。结论:提高认识和采取必要的预防措施对预防交叉污染的发生起着至关重要的作用。整个牙科团队的责任是团结一致,防止交叉污染和感染传播的威胁。
{"title":"Cross-contamination in dentistry: A comprehensive overview","authors":"Sagar J. Abichandani, R. Nadiger","doi":"10.4103/2229-5186.108807","DOIUrl":"https://doi.org/10.4103/2229-5186.108807","url":null,"abstract":"Introduction: Cross-contamination and cross-infection can occur by direct contact with micro-organisms, indirect contact with contaminated objects, droplet transmission, and inhalation of airborne pathogens. In dentistry, operatory surfaces can routinely become contaminated with patient saliva, blood, and other fluids during treatment. Aims and Objectives: This review is aimed to identify cross-contamination and spread of infection by various means and the appropriate preventive measures to be implemented. This review will also highlight the various aspects that are neglected in various dental schools/dental practice or any dental set up that potentiate cross-contamination ultimately affecting the dentist, dental team and the patients. Materials and Methods: A review of the dental literature concerning cross-contamination was performed. Material appearing in the literature before 1996 was reviewed as exhaustively as possible and materials after 1996 were reviewed electronically. In Medline, key words like cross-contamination, sterilization, asepsis, infection, infection control, prevention were used in various combinations to obtain a potential reference for review. A total of 2245 English Language titles were found, many were repeated due to recurring searches. The headings were shortlisted and reviewed for detailed examination. Results: A comprehensive review to evaluate the methods of preventing cross-contamination in dentistry involving various aspects and challenges encountered in a dental set up was constructed which was missing in the references of the review. Conclusions: Awareness and the necessary precautions play a pivotal role in preventing the occurrence of cross-contamination. It is the responsibility of the entire dental team to work in unison to prevent the menace of cross-contamination and spread of infection.","PeriodicalId":10187,"journal":{"name":"Chronicles of Young Scientists","volume":"23 1","pages":"51"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84991149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 24
期刊
Chronicles of Young Scientists
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1