Abstract Stimuli-responsive hydrogels (SRH) were prepared by using monomers (i.e. N-isopropyl acrylamide; NIPAM and acrylamide; AAm), co-monomers (i.e. methacrylic acid; MPA or mesaconic acid; MFA) and a crosslinker (N, N’-methylene bisacrylamide; N-Bis). SRH have been prepared by thermal free radical polymerization reaction in aqueous solution. Spectroscopic and thermal analyses such as Fourier Transform Infrared Spectroscopy, thermogravimetric analysis and differential scanning calorimetry analysis were performed for SRH characterization. The equilibrium swelling studies by gravimetrically were carried out in different solvents, at the solutions, temperature, pH, and ionic strengths to determine their effect on swelling characteristic of the hydrogels. In addition, cycles equilibrium swelling studies were made with the solutions at different temperatures and at different pH. NIPAM/AAm hydrogel exhibits a lover critical solution temperature (LCST) at 28 oC, whereas NIPAM/AAm-MPA and NIPAM/AAm-MFA hydrogels exhibit a LCST at 31 C and 35 oC, respectively, and the LCST of NIPAM/AAm-MFA hydrogel is close to the body temperature.
{"title":"Stimuli Responsive Hydrogels: NIPAM/AAm/Carboxylic Acid Polymers","authors":"Yasemin Işıkver, Dursun Saraydın","doi":"10.2478/achi-2019-0012","DOIUrl":"https://doi.org/10.2478/achi-2019-0012","url":null,"abstract":"Abstract Stimuli-responsive hydrogels (SRH) were prepared by using monomers (i.e. N-isopropyl acrylamide; NIPAM and acrylamide; AAm), co-monomers (i.e. methacrylic acid; MPA or mesaconic acid; MFA) and a crosslinker (N, N’-methylene bisacrylamide; N-Bis). SRH have been prepared by thermal free radical polymerization reaction in aqueous solution. Spectroscopic and thermal analyses such as Fourier Transform Infrared Spectroscopy, thermogravimetric analysis and differential scanning calorimetry analysis were performed for SRH characterization. The equilibrium swelling studies by gravimetrically were carried out in different solvents, at the solutions, temperature, pH, and ionic strengths to determine their effect on swelling characteristic of the hydrogels. In addition, cycles equilibrium swelling studies were made with the solutions at different temperatures and at different pH. NIPAM/AAm hydrogel exhibits a lover critical solution temperature (LCST) at 28 oC, whereas NIPAM/AAm-MPA and NIPAM/AAm-MFA hydrogels exhibit a LCST at 31 C and 35 oC, respectively, and the LCST of NIPAM/AAm-MFA hydrogel is close to the body temperature.","PeriodicalId":6958,"journal":{"name":"Acta Chemica Iasi","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91152009","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}
N. N. Duy, Dang Van Phu, Nguyen Thi Kim Lan, N. T. Duoc, N. Q. Hien, Bui Nghia Hiep, B. N. Han, B. Ha
Abstract Textile wastewater is known to have a large number of hazardous pollutants, intense color and high chemical oxygen demand (COD) concentration. The electron beam method is considered useful in treatment textile wastewater through chemical oxidation process. In this study, three real textile wastewaters (Sample 1: Reactive Black 5, Reactive Red 10, and Reactive Orange 13; Sample 2: Reactive Red 10 and Yellow GR; Sample 3: Reactive Black 5 and Turquoise Blue HF–G) from textile dyeing company in Ho Chi Minh city were treated by electron beam method. The effect of absorbed doses and hydrogen peroxide (H2O2) at different concentrations on the change of pH, removal capacity, COD and five day’s biological oxygen demand (BOD5) were investigated. The results indicated that color, COD, BOD5 and pH decreased with increasing absorbed dose. A sufficient amount of H2O2 in the radiation process could accelerate the color removal process. In the same condition, a color removal efficiency of ~90% was obtained with EB/H2O2, in contrast with color loss by using EB alone (~71%). These results highlighted the potential of EB radiation technology for treatment of textile dyeing wastewater.
{"title":"Treatment of Real Textile Wastewater Using Electron Beam Irradiation","authors":"N. N. Duy, Dang Van Phu, Nguyen Thi Kim Lan, N. T. Duoc, N. Q. Hien, Bui Nghia Hiep, B. N. Han, B. Ha","doi":"10.2478/achi-2019-0019","DOIUrl":"https://doi.org/10.2478/achi-2019-0019","url":null,"abstract":"Abstract Textile wastewater is known to have a large number of hazardous pollutants, intense color and high chemical oxygen demand (COD) concentration. The electron beam method is considered useful in treatment textile wastewater through chemical oxidation process. In this study, three real textile wastewaters (Sample 1: Reactive Black 5, Reactive Red 10, and Reactive Orange 13; Sample 2: Reactive Red 10 and Yellow GR; Sample 3: Reactive Black 5 and Turquoise Blue HF–G) from textile dyeing company in Ho Chi Minh city were treated by electron beam method. The effect of absorbed doses and hydrogen peroxide (H2O2) at different concentrations on the change of pH, removal capacity, COD and five day’s biological oxygen demand (BOD5) were investigated. The results indicated that color, COD, BOD5 and pH decreased with increasing absorbed dose. A sufficient amount of H2O2 in the radiation process could accelerate the color removal process. In the same condition, a color removal efficiency of ~90% was obtained with EB/H2O2, in contrast with color loss by using EB alone (~71%). These results highlighted the potential of EB radiation technology for treatment of textile dyeing wastewater.","PeriodicalId":6958,"journal":{"name":"Acta Chemica Iasi","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85291574","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}
Abstract This paper reports the modification of a polyester film surface in air plasma at room temperature. In order to evaluate the efficiency of the plasma treatment, the modified surface of the PET films was characterized by contact angle and ATR-FTIR spectroscopy.
{"title":"Surface Modification of Poly(Ethylene Terephthalate) in Air Plasma","authors":"M. Drobotă, A. Trandabăț, M. Pîslaru","doi":"10.2478/achi-2019-0010","DOIUrl":"https://doi.org/10.2478/achi-2019-0010","url":null,"abstract":"Abstract This paper reports the modification of a polyester film surface in air plasma at room temperature. In order to evaluate the efficiency of the plasma treatment, the modified surface of the PET films was characterized by contact angle and ATR-FTIR spectroscopy.","PeriodicalId":6958,"journal":{"name":"Acta Chemica Iasi","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73250639","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}
Abstract Density of states and geometrical structures of modified Lead zirconate titanate are investigated using density functional theory within local density approximation. The electronic properties and bond length variation have been studied in terms of electronic structure and bonding mechanism principles respectively. Hybridization between Ti 3d - O 2p states and ferroelectric distortion have been addressed as a theoretical approach, to rule the improvement of ferroelectric properties of Lead zirconate titanate. The analysis of Ga, Tl modified Lead zirconate titanate were found to diminish the hybridization between Ti 3d - O 2p states, the relaxed behavior lead to the reversal of the known ferroelectric distortion. Y, Ho, Yb and Lu modified Lead zirconate titanate compounds have a tendency to intense the ferroelectric stability, its exhibit higher hybridization between Ti 3d - O 2p states than pure Lead zirconate titanate, also the arrangement of the ions distortions is strongly the same as the more favoured ferroelectric states of Lead zirconate titanate.
摘要利用局部密度近似下的密度泛函理论研究了改性锆钛酸铅的态密度和几何结构。分别从电子结构和成键机理的角度研究了其电子性质和键长变化。本文从理论上研究了钛酸锆铅的三维o2p杂化和铁电畸变，以指导钛酸锆铅铁电性能的改善。分析发现，Ga、Tl修饰的锆钛酸铅减少了Ti 3d - o2p态之间的杂化，弛豫行为导致已知铁电畸变的逆转。Y、Ho、Yb和Lu改性的锆钛酸铅化合物具有增强铁电稳定性的趋势，与纯锆钛酸铅相比，其表现出更高的Ti 3d - o2p杂化态，且离子畸变排列与锆钛酸铅更有利的铁电态相同。
{"title":"DFT Investigation of Structural and Electronic Properties of Modified PZT","authors":"R. K. Hussein, I. Bashter, M. El-Okr, M. Ibrahim","doi":"10.2478/achi-2019-0002","DOIUrl":"https://doi.org/10.2478/achi-2019-0002","url":null,"abstract":"Abstract Density of states and geometrical structures of modified Lead zirconate titanate are investigated using density functional theory within local density approximation. The electronic properties and bond length variation have been studied in terms of electronic structure and bonding mechanism principles respectively. Hybridization between Ti 3d - O 2p states and ferroelectric distortion have been addressed as a theoretical approach, to rule the improvement of ferroelectric properties of Lead zirconate titanate. The analysis of Ga, Tl modified Lead zirconate titanate were found to diminish the hybridization between Ti 3d - O 2p states, the relaxed behavior lead to the reversal of the known ferroelectric distortion. Y, Ho, Yb and Lu modified Lead zirconate titanate compounds have a tendency to intense the ferroelectric stability, its exhibit higher hybridization between Ti 3d - O 2p states than pure Lead zirconate titanate, also the arrangement of the ions distortions is strongly the same as the more favoured ferroelectric states of Lead zirconate titanate.","PeriodicalId":6958,"journal":{"name":"Acta Chemica Iasi","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82826191","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}
Abstract Extensive use of chemicals in personal care products has led to many health issues. Diethanolamine is one of such harmful chemicals containing two highly functional groups alcohol and amine that requires toxicological evaluation and its mitigation. Swiss strain albino mice were used and divided into different control and treated groups. Different doses of DEA (110, 165 and 330 mg/kg body weight/day) were orally administered for 30 days. Biochemical and histopathological assessments were performed at the end of the treatment. Results collectively revealed body weight loss as well as significant increase in absolute and relative liver weight in DEA-treated groups. Biochemical analysis revealed that DEA treatment further promotes significant (P<0.05), dose-dependent increase in lipid and cholesterol contents and also cause decrease in protein and glycogen content. Histopathological assessment confirms vacuole formation due to accumulation of lipid within the liver tissue. Administration of curcumin (10, 20 and 30 mg/kg body weight/day) along with high dose of DEA (330 mg/kg body weight/day) showed improved values of lipid, cholesterol, protein and glycogen contents. It also helped retaining normal histological structure of liver. Observations in all groups and results indicate DEA-treatment causes hepatic steatosis and treatment of curcumin attenuated effect of DEA that is due to its potential antioxidant properties.
{"title":"Diethanolamine-Induced Hepatic Steatosis in Mice and Its Amelioration by Curcumin","authors":"Hetal Doctor, Sanman Samova, R. Verma","doi":"10.2478/achi-2019-0009","DOIUrl":"https://doi.org/10.2478/achi-2019-0009","url":null,"abstract":"Abstract Extensive use of chemicals in personal care products has led to many health issues. Diethanolamine is one of such harmful chemicals containing two highly functional groups alcohol and amine that requires toxicological evaluation and its mitigation. Swiss strain albino mice were used and divided into different control and treated groups. Different doses of DEA (110, 165 and 330 mg/kg body weight/day) were orally administered for 30 days. Biochemical and histopathological assessments were performed at the end of the treatment. Results collectively revealed body weight loss as well as significant increase in absolute and relative liver weight in DEA-treated groups. Biochemical analysis revealed that DEA treatment further promotes significant (P<0.05), dose-dependent increase in lipid and cholesterol contents and also cause decrease in protein and glycogen content. Histopathological assessment confirms vacuole formation due to accumulation of lipid within the liver tissue. Administration of curcumin (10, 20 and 30 mg/kg body weight/day) along with high dose of DEA (330 mg/kg body weight/day) showed improved values of lipid, cholesterol, protein and glycogen contents. It also helped retaining normal histological structure of liver. Observations in all groups and results indicate DEA-treatment causes hepatic steatosis and treatment of curcumin attenuated effect of DEA that is due to its potential antioxidant properties.","PeriodicalId":6958,"journal":{"name":"Acta Chemica Iasi","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84510135","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}
Abstract In this study, dissolution kinetics of manganese and zinc from spent zinc–carbon batteries in acetic acid solution was investigated. To determine the kinetics of dissolution of manganese and zinc, shrinking core model was applied to dissolution recoveries obtained at different temperatures. As a result of kinetic studies, it was determined that manganese and zinc were dissolved in acetic acid solution by diffusion from product layer and then activation energies (Ea) were calculated.
{"title":"Application of the Shrinking-Core Models for Determination of Dissolution Kinetics of Mn and Zn from Spent Zinc–Carbon Battery Powder in Organic Acid Solution","authors":"T. Agacayak, H. A. Taner","doi":"10.2478/achi-2019-0008","DOIUrl":"https://doi.org/10.2478/achi-2019-0008","url":null,"abstract":"Abstract In this study, dissolution kinetics of manganese and zinc from spent zinc–carbon batteries in acetic acid solution was investigated. To determine the kinetics of dissolution of manganese and zinc, shrinking core model was applied to dissolution recoveries obtained at different temperatures. As a result of kinetic studies, it was determined that manganese and zinc were dissolved in acetic acid solution by diffusion from product layer and then activation energies (Ea) were calculated.","PeriodicalId":6958,"journal":{"name":"Acta Chemica Iasi","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75763943","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}
Abstract In this paper, four novel topological indices named as neighbourhood version of forgotten topological index (FN), modified neighbourhood version of Forgotten topological index (FN*), neighbourhood version of second Zagreb index (M2*) and neighbourhood version of hyper Zagreb index (HMN) are introduced. Here the relatively study depends on the structure-property regression analysis is made to test and compute the chemical applicability of these indices for the prediction of physicochemical properties of octane isomers. Also it is shown that these newly presented indices have well degeneracy property in comparison with other degree based topological indices. Some mathematical properties of these indices are also discussed here.
{"title":"Onsome New Neighbourhood Degree Based Indices","authors":"S. Mondal, Nilanjan De, A. Pal","doi":"10.2478/achi-2019-0003","DOIUrl":"https://doi.org/10.2478/achi-2019-0003","url":null,"abstract":"Abstract In this paper, four novel topological indices named as neighbourhood version of forgotten topological index (FN), modified neighbourhood version of Forgotten topological index (FN*), neighbourhood version of second Zagreb index (M2*) and neighbourhood version of hyper Zagreb index (HMN) are introduced. Here the relatively study depends on the structure-property regression analysis is made to test and compute the chemical applicability of these indices for the prediction of physicochemical properties of octane isomers. Also it is shown that these newly presented indices have well degeneracy property in comparison with other degree based topological indices. Some mathematical properties of these indices are also discussed here.","PeriodicalId":6958,"journal":{"name":"Acta Chemica Iasi","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87826474","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}
Abstract It is well known fact that several physicochemical properties of chemical compounds are closely related to their molecular structure. Mathematical chemistry provides a method to predict the aforementioned properties of compounds using topological indices. The Zagreb indices are among the most studied topological indices. Recently, three modified versions of the Zagreb indices were proposed independently in [Ali, A.; Trinajstić, N. A novel/old modification of the first Zagreb index, arXiv:1705.10430 [math.CO] 2017; Mol. Inform. 2018, 37, 1800008] and [Naji, A. M.; Soner, N. D.; Gutman, I. On leap Zagreb indices of graphs, Commun. Comb. Optim. 2017, 2, 99–117], which were named as the Zagreb connection indices and the leap Zagreb indices, respectively. In this paper, we check the chemical applicability of the newly considered Zagreb connection indices on the set of octane isomers and establish general expressions for calculating these indices of two well-known dendrimer nanostars.
{"title":"Zagreb Connection Indices of Two Dendrimer Nanostars","authors":"N. Fatima, A. A. Bhatti, Akbar Ali, Wei Gao","doi":"10.2478/achi-2019-0001","DOIUrl":"https://doi.org/10.2478/achi-2019-0001","url":null,"abstract":"Abstract It is well known fact that several physicochemical properties of chemical compounds are closely related to their molecular structure. Mathematical chemistry provides a method to predict the aforementioned properties of compounds using topological indices. The Zagreb indices are among the most studied topological indices. Recently, three modified versions of the Zagreb indices were proposed independently in [Ali, A.; Trinajstić, N. A novel/old modification of the first Zagreb index, arXiv:1705.10430 [math.CO] 2017; Mol. Inform. 2018, 37, 1800008] and [Naji, A. M.; Soner, N. D.; Gutman, I. On leap Zagreb indices of graphs, Commun. Comb. Optim. 2017, 2, 99–117], which were named as the Zagreb connection indices and the leap Zagreb indices, respectively. In this paper, we check the chemical applicability of the newly considered Zagreb connection indices on the set of octane isomers and establish general expressions for calculating these indices of two well-known dendrimer nanostars.","PeriodicalId":6958,"journal":{"name":"Acta Chemica Iasi","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88258613","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}
Ihor O. Pokotylo, P. Zadorozhnii, V. Kiselev, O. V. Okhtina, A. V. Kharchenko
Abstract Based on the readily available N-(2,2-dichloro-1-(2-(4-methylbenzoyl)-hydrazine-1-carbothioamido)ethyl)benzamide, the corresponding N-(2,2-dichloro-1-((5-(p-tolyl)-1,3,4-oxadiazol-2-yl)amino)ethyl)benzamide and 5-(p-tolyl)-1,3,4-thiadiazol-2-amine were obtained. The products were received in acceptable yields and were isolated from the reaction mixture without any particular difficulty. The structure of the compounds obtained was confirmed by 1H, 13C NMR spectroscopy and mass spectrometry data.
{"title":"Some New Heterocyclisations Based on N-(2,2-dichloro-1-isothiocyanatoethyl)benzamide Derivatives","authors":"Ihor O. Pokotylo, P. Zadorozhnii, V. Kiselev, O. V. Okhtina, A. V. Kharchenko","doi":"10.2478/achi-2019-0005","DOIUrl":"https://doi.org/10.2478/achi-2019-0005","url":null,"abstract":"Abstract Based on the readily available N-(2,2-dichloro-1-(2-(4-methylbenzoyl)-hydrazine-1-carbothioamido)ethyl)benzamide, the corresponding N-(2,2-dichloro-1-((5-(p-tolyl)-1,3,4-oxadiazol-2-yl)amino)ethyl)benzamide and 5-(p-tolyl)-1,3,4-thiadiazol-2-amine were obtained. The products were received in acceptable yields and were isolated from the reaction mixture without any particular difficulty. The structure of the compounds obtained was confirmed by 1H, 13C NMR spectroscopy and mass spectrometry data.","PeriodicalId":6958,"journal":{"name":"Acta Chemica Iasi","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82807077","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}
M. Asgari, Hasan Motaghi, H. Khanahmad, M. Mehrgardi, Amin Farzadniya, Parvaneh Shokrania
Abstract A multifunctional nanoparticle, Super Paramagnetic Iron Oxide Nanoparticle-Carbon Dots (SPION-CDs), for fluorescence and magnetic resonance imaging is introduced. This nanoparticle possesses the magnetic properties of super-paramagnetic iron oxide (SPION) core as well as the fluorescence characteristics of carbon dots (CDs) coated in mesoporous structure. The SPION-CDs were synthesized using a high temperature facile single-pot hydrothermal method. The products were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), X-ray diffraction (XRD), UV/vis absorption, vibrating sample magnetometer (VSM). The cytotoxic effect of SPION-CDs on OVCAR-3 cells was also evaluated. The synthesized nanoparticle possesses optimal size, low toxicity and excellent magnetic properties, including super-paramagnetic behavior (Ms = 42 emu g−1). Moreover, in the viewpoint of optical properties, the quantum yield of ~2.4% was obtained and the nanoparticle shows good fluorescence stability for cell-labeling studies. This multifunctional nanoparticle with appropriate characterization is a promising candidate for multimodal fluorescence/magnetic resonance imaging platform.
{"title":"Preparation and Characterization of Spion-CDs as a Multifunctional Fluorescence/Magnetic Resonance Nanoparticle","authors":"M. Asgari, Hasan Motaghi, H. Khanahmad, M. Mehrgardi, Amin Farzadniya, Parvaneh Shokrania","doi":"10.2478/achi-2019-0007","DOIUrl":"https://doi.org/10.2478/achi-2019-0007","url":null,"abstract":"Abstract A multifunctional nanoparticle, Super Paramagnetic Iron Oxide Nanoparticle-Carbon Dots (SPION-CDs), for fluorescence and magnetic resonance imaging is introduced. This nanoparticle possesses the magnetic properties of super-paramagnetic iron oxide (SPION) core as well as the fluorescence characteristics of carbon dots (CDs) coated in mesoporous structure. The SPION-CDs were synthesized using a high temperature facile single-pot hydrothermal method. The products were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), X-ray diffraction (XRD), UV/vis absorption, vibrating sample magnetometer (VSM). The cytotoxic effect of SPION-CDs on OVCAR-3 cells was also evaluated. The synthesized nanoparticle possesses optimal size, low toxicity and excellent magnetic properties, including super-paramagnetic behavior (Ms = 42 emu g−1). Moreover, in the viewpoint of optical properties, the quantum yield of ~2.4% was obtained and the nanoparticle shows good fluorescence stability for cell-labeling studies. This multifunctional nanoparticle with appropriate characterization is a promising candidate for multimodal fluorescence/magnetic resonance imaging platform.","PeriodicalId":6958,"journal":{"name":"Acta Chemica Iasi","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90402583","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}
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