首页 > 最新文献

Journal of Materials in Life Sciences (JOMALISC)最新文献

英文 中文
Study on Rheological and Stability of Natural Derived Carbon Nanosphere Nanofluids 天然衍生碳纳米球纳米流体的流变性和稳定性研究
Pub Date : 2023-05-25 DOI: 10.11113/jomalisc.v2.21
Huei Ruey Ong, Wan Mohd Eqhwan Iskandar Wan Saiful Bahri, Amar Hisyam Harun, Md. Maksudur Rahman Khan, Chi Shein Hong, Muhammad Khairul Anuar Mohamed
In this work, carbon nanosphere derived from a waste rice husk (RH) were prepared through chemical treatment and calcination process. Moreover, the carbon nanofluids (CNF) were developed using simple chemical treatment assisted by ultrasound technique. Different composition of carbon nanosphere (CNS) were taken into experiment to determine the optimum and best properties. Ultrasound techniques were introduced in this study to reduce the agglomeration of the particle. Surface morphology of CNS were analysed by Scanning Electron Microscopy (SEM). The sphere shape from the particle/grain were identified from the nanoparticle and proves the terms of “nanosphere”. Viscosity of the nanofluids were studied by rheological testing (Antoon PAR, MAR 3). Flow curve of nanofluids showed that at minimum inclusion of CNS improved the stress of the fluid significantly. More to the addition, dynamic viscosity measure possesses that addition of CNS stabilized the properties of the fluid compared to virgin base fluid. The stability of the CNF was investigated through UV-Vis. Findings shows that, the stability of the nanofluids stabilized starting from 1 week onwards as evidenced by UV-Visible spectrophotometer analysis. Furthermore, little to no precipitate noticed even after 8 weeks. This work offers greener approach for nanofluids which organic derived and environmentally friendly (very low percentage of nanoparticle, 0.02 vol% (equivalent to 0.002 wt %).
以废稻壳为原料,通过化学处理和煅烧法制备了纳米碳球。此外,利用超声技术辅助下的简单化学处理方法制备了碳纳米流体(CNF)。对不同组成的碳纳米球(CNS)进行了实验,以确定其最佳性能。在本研究中引入了超声技术来减少颗粒的团聚。用扫描电镜(SEM)分析了CNS的表面形貌。从纳米颗粒中识别出颗粒/颗粒的球形,证明了“纳米球”的说法。通过流变学测试(Antoon PAR, mar3)研究了纳米流体的粘度。纳米流体的流动曲线表明,CNS的最小包裹体显著改善了流体的应力。此外,动态粘度测试表明,CNS的加入使流体的性能相对于原液稳定。通过紫外-可见光谱研究了CNF的稳定性。紫外-可见分光光度计分析结果表明,纳米流体的稳定性从1周开始稳定。此外,即使在8周后,也几乎没有发现沉淀。这项工作为有机衍生和环境友好的纳米流体(非常低的纳米颗粒百分比,0.02 vol%(相当于0.002 wt %))提供了更环保的方法。
{"title":"Study on Rheological and Stability of Natural Derived Carbon Nanosphere Nanofluids","authors":"Huei Ruey Ong, Wan Mohd Eqhwan Iskandar Wan Saiful Bahri, Amar Hisyam Harun, Md. Maksudur Rahman Khan, Chi Shein Hong, Muhammad Khairul Anuar Mohamed","doi":"10.11113/jomalisc.v2.21","DOIUrl":"https://doi.org/10.11113/jomalisc.v2.21","url":null,"abstract":"In this work, carbon nanosphere derived from a waste rice husk (RH) were prepared through chemical treatment and calcination process. Moreover, the carbon nanofluids (CNF) were developed using simple chemical treatment assisted by ultrasound technique. Different composition of carbon nanosphere (CNS) were taken into experiment to determine the optimum and best properties. Ultrasound techniques were introduced in this study to reduce the agglomeration of the particle. Surface morphology of CNS were analysed by Scanning Electron Microscopy (SEM). The sphere shape from the particle/grain were identified from the nanoparticle and proves the terms of “nanosphere”. Viscosity of the nanofluids were studied by rheological testing (Antoon PAR, MAR 3). Flow curve of nanofluids showed that at minimum inclusion of CNS improved the stress of the fluid significantly. More to the addition, dynamic viscosity measure possesses that addition of CNS stabilized the properties of the fluid compared to virgin base fluid. The stability of the CNF was investigated through UV-Vis. Findings shows that, the stability of the nanofluids stabilized starting from 1 week onwards as evidenced by UV-Visible spectrophotometer analysis. Furthermore, little to no precipitate noticed even after 8 weeks. This work offers greener approach for nanofluids which organic derived and environmentally friendly (very low percentage of nanoparticle, 0.02 vol% (equivalent to 0.002 wt %).","PeriodicalId":489381,"journal":{"name":"Journal of Materials in Life Sciences (JOMALISC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136350997","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
Potential Use of Phytochemical Extract as Prebiotic Compounds – A Brief Review 植物化学提取物作为益生元化合物的潜在应用综述
Pub Date : 2023-05-25 DOI: 10.11113/jomalisc.v2.26
Anis Athirah Kharuddin, Rosnani Hasham, Fathilah Ali, Nadia Adrus, Jamarosliza Jamaluddin, Roshanida Abdul Rahman, Mariani Abdul Hamid, Harisun Yaakob
Our gastrointestinal tract's (GI) functioning is influenced by a diverse collection of bacteria. Prebiotics are one of the most promising strategies for changing the composition of the gut microbiota and the metabolic process. Prebiotics can be thought of as a 'food' for probiotics in general. Prebiotics in the diet have been shown in numerous studies to be an effective way to manipulate the intestinal microbiota through diet. This topic has attracted widespread attention and is being managed for the benefit of human health. Because of the rising demand for prebiotics, a new source of prebiotics is needed such as plants, one that is reasonably inexpensive when compared to commercially available prebiotics. Turmeric and Garcinia atroviridis are common and cheap cooking ingredients used in Malaysia that are rich in dietary polyphenols and able to modulate gut and intestinal microbiota. Therefore, the purpose of this review is to emphasize the prebiotic potential of naturally occurring non-digestible carbohydrates in various plants.
我们的胃肠道(GI)功能受到多种细菌的影响。益生元是改变肠道菌群组成和代谢过程最有前途的策略之一。益生元通常可以被认为是益生菌的“食物”。许多研究表明,饮食中的益生元是通过饮食控制肠道微生物群的有效方法。这一主题引起了广泛关注,并正在为人类健康的利益而进行管理。由于对益生元的需求不断增加,需要一种新的益生元来源,如植物,与市售的益生元相比,这种益生元相当便宜。姜黄和Garcinia atroviridis是马来西亚常见的廉价烹饪原料,富含膳食多酚,能够调节肠道和肠道微生物群。因此,本综述的目的是强调各种植物中天然存在的不可消化碳水化合物的益生元潜力。
{"title":"Potential Use of Phytochemical Extract as Prebiotic Compounds – A Brief Review","authors":"Anis Athirah Kharuddin, Rosnani Hasham, Fathilah Ali, Nadia Adrus, Jamarosliza Jamaluddin, Roshanida Abdul Rahman, Mariani Abdul Hamid, Harisun Yaakob","doi":"10.11113/jomalisc.v2.26","DOIUrl":"https://doi.org/10.11113/jomalisc.v2.26","url":null,"abstract":"Our gastrointestinal tract's (GI) functioning is influenced by a diverse collection of bacteria. Prebiotics are one of the most promising strategies for changing the composition of the gut microbiota and the metabolic process. Prebiotics can be thought of as a 'food' for probiotics in general. Prebiotics in the diet have been shown in numerous studies to be an effective way to manipulate the intestinal microbiota through diet. This topic has attracted widespread attention and is being managed for the benefit of human health. Because of the rising demand for prebiotics, a new source of prebiotics is needed such as plants, one that is reasonably inexpensive when compared to commercially available prebiotics. Turmeric and Garcinia atroviridis are common and cheap cooking ingredients used in Malaysia that are rich in dietary polyphenols and able to modulate gut and intestinal microbiota. Therefore, the purpose of this review is to emphasize the prebiotic potential of naturally occurring non-digestible carbohydrates in various plants.","PeriodicalId":489381,"journal":{"name":"Journal of Materials in Life Sciences (JOMALISC)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136351001","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
In Silico Study of the 5-Hydroxytryptamine-2C Receptor Antagonist Activity of Anthocyanins as Antidepressant Therapy 花青素抗抑郁治疗5-羟色胺- 2c受体拮抗剂活性的硅片研究
Pub Date : 2023-05-25 DOI: 10.11113/jomalisc.v2.29
Nia Kurnianingsih, Novita Titis Harbiyanti, Ardani Galih Prakosa, Retty Ratnawati
This study aimed to evaluate the drug-likeness, pharmacokinetic and safety prediction of six types of anthocyanins (ANC) as well as virtual molecular interaction between ANC and 5-hydroxytryptamine-2C (5HT-2C) receptor for antagonist target of antidepressant drug development. The Lipinski rule of five was used to predict the oral drug-likeness of ANC. The pharmacokinetic and safety prediction was analyzed with a free accessible web server. The ligands of ANC were retrieved from PubChem National Centre for Biotechnology Information (NCBI) database. The protein of the 5HT-2C receptor was obtained from Protein Data Bank. Molecular docking was performed by PyRx software and visualized using Discovery Studio Software. The results showed ANC is proposed as an oral drug candidate. The pharmacokinetic prediction of ANC was demonstrated to have high absorption in the intestinal route, solubility in the aqueous phase, capability to evade hepatic first-pass metabolism and high total clearance from the kidney. Virtual toxicity prediction showed a higher threshold of chronic lethal dose than control with no toxicity on the salmonella typhimurium reverses mutation assay (AMES) test, liver, and skin. Molecular prediction found ANC type of delphinidin has the most similar interaction site with the control antagonist ligand on the 5HT-2C receptor which is facilitated with hydrogen bonds and hydrophobic bonds at amino residues of Trp324, Phe328, Ala222 and Val135. We concluded ANC particularly delphinidin is proposed as an oral drug candidate potentially used as a 5HT-2C receptor antagonist and thus, further in vitro and in vivo studies are necessary to confirm the effect on antidepressant activity.
本研究旨在评价6种花青素(ANC)的药物相似性、药代动力学和安全性预测,以及ANC与5-羟色胺- 2c (5HT-2C)受体作为抗抑郁药物拮抗靶点的虚拟分子相互作用。采用利平斯基五法则预测ANC的口服药物相似性。通过免费访问的web服务器分析药代动力学和安全性预测。ANC的配体检索自PubChem国家生物技术信息中心(NCBI)数据库。5HT-2C受体蛋白来源于protein Data Bank。通过PyRx软件进行分子对接,并使用Discovery Studio软件进行可视化。结果表明,ANC可作为一种口服候选药物。ANC的药代动力学预测被证明具有肠路吸收高、水相溶解度高、能够逃避肝脏第一次代谢和肾脏总清除率高的特点。虚拟毒性预测显示鼠伤寒沙门菌反向突变试验(AMES)、肝脏和皮肤的慢性致死剂量阈值高于无毒性的对照组。分子预测发现ANC型飞鸽素与5HT-2C受体上对照拮抗剂配体的相互作用位点最为相似,在Trp324、Phe328、Ala222和Val135的氨基残基上存在氢键和疏水键促进作用。我们的结论是,ANC特别是飞燕草苷被建议作为一种口服候选药物,可能用作5HT-2C受体拮抗剂,因此,需要进一步的体外和体内研究来证实其抗抑郁活性的作用。
{"title":"In Silico Study of the 5-Hydroxytryptamine-2C Receptor Antagonist Activity of Anthocyanins as Antidepressant Therapy","authors":"Nia Kurnianingsih, Novita Titis Harbiyanti, Ardani Galih Prakosa, Retty Ratnawati","doi":"10.11113/jomalisc.v2.29","DOIUrl":"https://doi.org/10.11113/jomalisc.v2.29","url":null,"abstract":"This study aimed to evaluate the drug-likeness, pharmacokinetic and safety prediction of six types of anthocyanins (ANC) as well as virtual molecular interaction between ANC and 5-hydroxytryptamine-2C (5HT-2C) receptor for antagonist target of antidepressant drug development. The Lipinski rule of five was used to predict the oral drug-likeness of ANC. The pharmacokinetic and safety prediction was analyzed with a free accessible web server. The ligands of ANC were retrieved from PubChem National Centre for Biotechnology Information (NCBI) database. The protein of the 5HT-2C receptor was obtained from Protein Data Bank. Molecular docking was performed by PyRx software and visualized using Discovery Studio Software. The results showed ANC is proposed as an oral drug candidate. The pharmacokinetic prediction of ANC was demonstrated to have high absorption in the intestinal route, solubility in the aqueous phase, capability to evade hepatic first-pass metabolism and high total clearance from the kidney. Virtual toxicity prediction showed a higher threshold of chronic lethal dose than control with no toxicity on the salmonella typhimurium reverses mutation assay (AMES) test, liver, and skin. Molecular prediction found ANC type of delphinidin has the most similar interaction site with the control antagonist ligand on the 5HT-2C receptor which is facilitated with hydrogen bonds and hydrophobic bonds at amino residues of Trp324, Phe328, Ala222 and Val135. We concluded ANC particularly delphinidin is proposed as an oral drug candidate potentially used as a 5HT-2C receptor antagonist and thus, further in vitro and in vivo studies are necessary to confirm the effect on antidepressant activity.","PeriodicalId":489381,"journal":{"name":"Journal of Materials in Life Sciences (JOMALISC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136351003","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
Carbon and Graphene Quantum Dots as Bionanomaterials: A Perspective View of COVID–19 碳和石墨烯量子点作为生物纳米材料:COVID-19的视角
Pub Date : 2023-05-25 DOI: 10.11113/jomalisc.v2.30
Mohd Hayrie Mohd Hatta, Kalaivani Batumalaie, Juan Matmin, Johnathan Malagobadan
The rapid outbreak of the deadly and contagious SARS-CoV-2 virus in 2019 that caused COVID-19 disease has demanded the development of novel antiviral materials. Since medical treatment and drug evaluation and approval by health authorities takes a longer time, nanomaterials can play a significant role in combating deadly disease. Carbon-based materials, such as carbon nanotubes (CNTs), graphene, fullerene, and carbon quantum dots (CQDs), have been widely reported in the literature as contributing to fighting the viral disease. Among them, CQDs have received significant attention as bionanomaterials recently, particularly in the biomedical field to treat various viral infections. Therefore, this mini-review discusses the recent achievements of CQDs and graphene quantum dots (GQDs) as bionanomaterials in fighting viral disease, specifically COVID-19 and other COVID-19-related works such as sensing and treatment, as well as virus inhibition.
2019年,致命且具有传染性的SARS-CoV-2病毒迅速爆发,引发了COVID-19疾病,这要求开发新型抗病毒材料。由于医疗和卫生当局的药物评估和批准需要更长的时间,纳米材料可以在对抗致命疾病方面发挥重要作用。碳基材料,如碳纳米管(CNTs)、石墨烯、富勒烯和碳量子点(CQDs),在文献中被广泛报道为有助于对抗病毒性疾病。其中,CQDs作为生物纳米材料近年来备受关注,特别是在生物医学领域用于治疗各种病毒感染。因此,本文将讨论CQDs和石墨烯量子点(GQDs)作为生物纳米材料在抗击病毒性疾病,特别是COVID-19和其他与COVID-19相关的工作(如传感和治疗)以及病毒抑制方面的最新成就。
{"title":"Carbon and Graphene Quantum Dots as Bionanomaterials: A Perspective View of COVID–19","authors":"Mohd Hayrie Mohd Hatta, Kalaivani Batumalaie, Juan Matmin, Johnathan Malagobadan","doi":"10.11113/jomalisc.v2.30","DOIUrl":"https://doi.org/10.11113/jomalisc.v2.30","url":null,"abstract":"The rapid outbreak of the deadly and contagious SARS-CoV-2 virus in 2019 that caused COVID-19 disease has demanded the development of novel antiviral materials. Since medical treatment and drug evaluation and approval by health authorities takes a longer time, nanomaterials can play a significant role in combating deadly disease. Carbon-based materials, such as carbon nanotubes (CNTs), graphene, fullerene, and carbon quantum dots (CQDs), have been widely reported in the literature as contributing to fighting the viral disease. Among them, CQDs have received significant attention as bionanomaterials recently, particularly in the biomedical field to treat various viral infections. Therefore, this mini-review discusses the recent achievements of CQDs and graphene quantum dots (GQDs) as bionanomaterials in fighting viral disease, specifically COVID-19 and other COVID-19-related works such as sensing and treatment, as well as virus inhibition.","PeriodicalId":489381,"journal":{"name":"Journal of Materials in Life Sciences (JOMALISC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136350998","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
Immobilization of Tyrosinase and Its Application 酪氨酸酶的固定化及其应用
Pub Date : 2023-05-25 DOI: 10.11113/jomalisc.v2.16
Nor Suriani Sani, Nik Ahmad Nizam Nik Malek
Immobilized enzymes are more robust and resistant to environmental changes than free enzymes in solution. More crucially, the immobilized enzyme systems' heterogeneity enables facile recovery of enzymes and products, multiple reuses, continuous enzymatic processes, quick reaction termination, and a more comprehensive range of bioreactor designs. This paper examines recent findings on enzyme immobilization using diverse approaches for various uses. The information gathered from the reactions catalyzed by the encapsulated tyrosinase provided a good view of hetero-biocatalysts in the phenol biosensor industries. This review proposes an effective method for immobilizing tyrosinase biomolecules into a silica aerogel matrix. Silica matrix has been utilized to encapsulate a wide range of biomolecules, mainly in sol-gel composites. We also discovered that silica aerogel synthesized from sol-gel method retains all the immobilized enzyme activity. The use of a silica matrix for enzyme immobilization, in conjunction with a moderate immobilization method, results in the successful retention of enzyme activity. Future studies should explore practical encapsulating approaches and inventively modified supports to enhance the commercialization of immobilized enzymes and offer fresh perspectives to the industrial sector.
固定化酶比溶液中的游离酶具有更强的稳定性和抗环境变化的能力。更重要的是,固定化酶系统的异质性使酶和产物易于回收,多次重复使用,连续的酶处理,快速的反应终止,以及更全面的生物反应器设计。本文探讨了酶固定化的最新发现,使用不同的方法用于各种用途。从包封酪氨酸酶催化的反应中收集到的信息为苯酚生物传感器工业中的异质生物催化剂提供了良好的前景。本文综述了一种将酪氨酸酶生物分子固定化到二氧化硅气凝胶基质中的有效方法。二氧化硅基质已被广泛用于包封各种生物分子,主要用于溶胶-凝胶复合材料。我们还发现溶胶-凝胶法合成的二氧化硅气凝胶保留了所有固定化酶的活性。使用二氧化硅基质进行酶固定化,结合适度的固定化方法,成功地保留了酶的活性。未来的研究应探索实用的封装方法和创造性的修饰支持,以提高固定化酶的商业化,并为工业部门提供新的视角。
{"title":"Immobilization of Tyrosinase and Its Application","authors":"Nor Suriani Sani, Nik Ahmad Nizam Nik Malek","doi":"10.11113/jomalisc.v2.16","DOIUrl":"https://doi.org/10.11113/jomalisc.v2.16","url":null,"abstract":"Immobilized enzymes are more robust and resistant to environmental changes than free enzymes in solution. More crucially, the immobilized enzyme systems' heterogeneity enables facile recovery of enzymes and products, multiple reuses, continuous enzymatic processes, quick reaction termination, and a more comprehensive range of bioreactor designs. This paper examines recent findings on enzyme immobilization using diverse approaches for various uses. The information gathered from the reactions catalyzed by the encapsulated tyrosinase provided a good view of hetero-biocatalysts in the phenol biosensor industries. This review proposes an effective method for immobilizing tyrosinase biomolecules into a silica aerogel matrix. Silica matrix has been utilized to encapsulate a wide range of biomolecules, mainly in sol-gel composites. We also discovered that silica aerogel synthesized from sol-gel method retains all the immobilized enzyme activity. The use of a silica matrix for enzyme immobilization, in conjunction with a moderate immobilization method, results in the successful retention of enzyme activity. Future studies should explore practical encapsulating approaches and inventively modified supports to enhance the commercialization of immobilized enzymes and offer fresh perspectives to the industrial sector.","PeriodicalId":489381,"journal":{"name":"Journal of Materials in Life Sciences (JOMALISC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136350999","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
Alginate/Gauze Incorporated with Hibiscus sabdariffa Linn. Extract as a Bioactive Agent for Wound Dressing Application 海藻酸盐/芙蓉纱布。作为生物活性剂的提取物用于伤口敷料
Pub Date : 2023-05-25 DOI: 10.11113/jomalisc.v2.32
Siti Pauliena Mohd Bohari, Nursyafika Az Zahra Ajan
In recent years, the development of wound dressings has changed from a passive to an active form by adding antiseptic agents such as polyvinylpyrrolidone (PVPI) and nanoparticles such as silver nanoparticles to facilitate the wound healing process. However, PVPI is toxic to human skin fibroblasts, and silver nanoparticles may result in metal accumulation in the tissues due to their nanosize. Therefore, a new approach to using natural sources from plants such as Hibiscus sabdariffa Linn. (HSL) is promising due to its phytochemical constituents that can serve as a potential therapeutic agent in wound dressings. In this study, freeze-dried alginate/gauze (FDA/gauze) without and with HS extract and calcium alginate/gauze (CA /gauze) with and without HS extract were developed by freeze-drying and gelation, respectively. This study aimed to characterize the properties of alginate/gauze-dressings as wound dressings. The morphology of the designed dressing; FDA/gauze, looks evenly distributed on the surface of the gauze compared to CA/gauze. It was found that FDA/gauze dressings have higher water absorbency than CA /gauze dressings, ranging from 690.43 to 1340.86% from day 1 until day 14. The percentage of water uptake ability increases as the concentration of alginate increases. In addition, the seeded human skin fibroblasts' growth on the alginate/gauze dressings infused with HSL extract growth in clustered, bright, and colourless proves that the cells were viable. Thus, the addition of HSL extract shows to support the process of cell viability.
近年来,伤口敷料的发展已经从被动的形式向主动的形式转变,通过添加防腐剂如聚乙烯吡咯烷酮(PVPI)和纳米颗粒如银纳米颗粒来促进伤口愈合过程。然而,PVPI对人类皮肤成纤维细胞是有毒的,并且银纳米颗粒由于其纳米尺寸可能导致金属在组织中积聚。因此,从木槿等植物中提取天然资源是一种新的方法。由于其植物化学成分可作为潜在的创面敷料治疗剂而被看好。本研究分别通过冷冻干燥和凝胶法制备了不含和不含HS提取物的海藻酸钙/纱布(FDA/纱布)和不含HS提取物的海藻酸钙/纱布(CA /纱布)。本研究旨在表征海藻酸盐/纱布敷料作为伤口敷料的性能。设计的敷料的形态;与CA/纱布相比,FDA/纱布在纱布表面看起来分布均匀。结果发现,从第1天到第14天,FDA/纱布敷料的吸水率高于CA /纱布敷料,为690.43 ~ 1340.86%。随着藻酸盐浓度的增加,吸水能力的百分比也随之增加。此外,人皮肤成纤维细胞种子在注入HSL提取物的海藻酸盐/纱布敷料上生长成簇,呈明亮,无色,证明细胞是有活力的。因此,加入HSL提取物对细胞的生存过程具有支持作用。
{"title":"Alginate/Gauze Incorporated with Hibiscus sabdariffa Linn. Extract as a Bioactive Agent for Wound Dressing Application","authors":"Siti Pauliena Mohd Bohari, Nursyafika Az Zahra Ajan","doi":"10.11113/jomalisc.v2.32","DOIUrl":"https://doi.org/10.11113/jomalisc.v2.32","url":null,"abstract":"In recent years, the development of wound dressings has changed from a passive to an active form by adding antiseptic agents such as polyvinylpyrrolidone (PVPI) and nanoparticles such as silver nanoparticles to facilitate the wound healing process. However, PVPI is toxic to human skin fibroblasts, and silver nanoparticles may result in metal accumulation in the tissues due to their nanosize. Therefore, a new approach to using natural sources from plants such as Hibiscus sabdariffa Linn. (HSL) is promising due to its phytochemical constituents that can serve as a potential therapeutic agent in wound dressings. In this study, freeze-dried alginate/gauze (FDA/gauze) without and with HS extract and calcium alginate/gauze (CA /gauze) with and without HS extract were developed by freeze-drying and gelation, respectively. This study aimed to characterize the properties of alginate/gauze-dressings as wound dressings. The morphology of the designed dressing; FDA/gauze, looks evenly distributed on the surface of the gauze compared to CA/gauze. It was found that FDA/gauze dressings have higher water absorbency than CA /gauze dressings, ranging from 690.43 to 1340.86% from day 1 until day 14. The percentage of water uptake ability increases as the concentration of alginate increases. In addition, the seeded human skin fibroblasts' growth on the alginate/gauze dressings infused with HSL extract growth in clustered, bright, and colourless proves that the cells were viable. Thus, the addition of HSL extract shows to support the process of cell viability.","PeriodicalId":489381,"journal":{"name":"Journal of Materials in Life Sciences (JOMALISC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136351002","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
Isolation of Biofilm-Bioflocculant Producing Bacteria from Palm Oil Mill Effluent 棕榈油厂废水中生物膜-生物絮凝剂产菌的分离
Pub Date : 2023-05-25 DOI: 10.11113/jomalisc.v2.28
Wan Rosmiza Zana Wan Dagang, Nuraihanah Najihah Zaidi
A variety of flocculants have been used to treat wastewater by agglomerating various colloidal substances and cells. Due to the adverse effects and high cost of conventional flocculants, bioflocculant which are originally produced by microorganisms are gaining attention. Therefore, this study aimed to identify the biofilm-bioflocculant-producing bacteria which was isolated from palm oil mill effluent in Johor, Malaysia. The isolated bacteria were identified by their colony morphology, Gram-staining and 16S rRNA gene sequence analysis. All isolates were subjected to bioflocculant assay with kaolin clay suspension as a model of wastewater to assess the flocculation efficiency of the bacterial bioflocculants. Two different isolates were successfully identified as Gram-negative bacteria Stenotrophomonas koreensis TR6-01 and Alishewanella agri BL06. S. koreensis TR6-01 shows the highest flocculating activity at 82.79%, followed by A. agri BL06 with 78.52%, respectively. The strongest biofilm producer was shown by S. koreensis TR6-01 and thus, indicates good candidate for future wastewater treatment technology.
各种絮凝剂已被用于通过凝聚各种胶体物质和细胞来处理废水。由于常规絮凝剂的副作用和高成本,以微生物为原料制备的生物絮凝剂正受到人们的关注。因此,本研究旨在鉴定从马来西亚柔佛州棕榈油厂废水中分离出来的生物膜-生物絮凝剂生产细菌。通过菌落形态、革兰氏染色和16S rRNA基因序列分析对分离菌进行鉴定。采用高岭土悬浮液作为废水模型,对所有菌株进行生物絮凝试验,以评估细菌生物絮凝剂的絮凝效果。两株分离菌株分别鉴定为革兰氏阴性菌韩国窄养单胞菌TR6-01和农业阿利什瓦纳菌BL06。韩国松TR6-01的絮凝活性最高,为82.79%,其次是农花BL06,分别为78.52%。高丽S. koreensis TR6-01显示出最强的生物膜生成菌,因此在未来的废水处理技术中具有良好的候选性。
{"title":"Isolation of Biofilm-Bioflocculant Producing Bacteria from Palm Oil Mill Effluent","authors":"Wan Rosmiza Zana Wan Dagang, Nuraihanah Najihah Zaidi","doi":"10.11113/jomalisc.v2.28","DOIUrl":"https://doi.org/10.11113/jomalisc.v2.28","url":null,"abstract":"A variety of flocculants have been used to treat wastewater by agglomerating various colloidal substances and cells. Due to the adverse effects and high cost of conventional flocculants, bioflocculant which are originally produced by microorganisms are gaining attention. Therefore, this study aimed to identify the biofilm-bioflocculant-producing bacteria which was isolated from palm oil mill effluent in Johor, Malaysia. The isolated bacteria were identified by their colony morphology, Gram-staining and 16S rRNA gene sequence analysis. All isolates were subjected to bioflocculant assay with kaolin clay suspension as a model of wastewater to assess the flocculation efficiency of the bacterial bioflocculants. Two different isolates were successfully identified as Gram-negative bacteria Stenotrophomonas koreensis TR6-01 and Alishewanella agri BL06. S. koreensis TR6-01 shows the highest flocculating activity at 82.79%, followed by A. agri BL06 with 78.52%, respectively. The strongest biofilm producer was shown by S. koreensis TR6-01 and thus, indicates good candidate for future wastewater treatment technology.","PeriodicalId":489381,"journal":{"name":"Journal of Materials in Life Sciences (JOMALISC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136351000","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
期刊
Journal of Materials in Life Sciences (JOMALISC)
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