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International journal of biomedical nanoscience and nanotechnology最新文献

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A review on Azadirachta indica (Neem) plant mediated biosynthesis, characterisation and antimicrobial activity of silver nanoparticles 印楝植物介导的纳米银合成、表征及抗菌活性研究进展
International journal of biomedical nanoscience and nanotechnology Pub Date : 2023-01-01 DOI: 10.1504/ijbnn.2023.10060076
Chibuzor N. Eze, Christian Ezeh, Marie U. E. Dibua, Stephen C. Emencheta
{"title":"A review on Azadirachta indica (Neem) plant mediated biosynthesis, characterisation and antimicrobial activity of silver nanoparticles","authors":"Chibuzor N. Eze, Christian Ezeh, Marie U. E. Dibua, Stephen C. Emencheta","doi":"10.1504/ijbnn.2023.10060076","DOIUrl":"https://doi.org/10.1504/ijbnn.2023.10060076","url":null,"abstract":"","PeriodicalId":89939,"journal":{"name":"International journal of biomedical nanoscience and nanotechnology","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134884313","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
Modelling of transport properties of graphene field-effect transistor for sensor application 传感器应用中石墨烯场效应晶体管传输特性的建模
International journal of biomedical nanoscience and nanotechnology Pub Date : 2020-05-07 DOI: 10.1504/ijbnn.2020.10029068
Geoffrey Ijeomah, F. Samsuri, M. Zawawi
{"title":"Modelling of transport properties of graphene field-effect transistor for sensor application","authors":"Geoffrey Ijeomah, F. Samsuri, M. Zawawi","doi":"10.1504/ijbnn.2020.10029068","DOIUrl":"https://doi.org/10.1504/ijbnn.2020.10029068","url":null,"abstract":"A dual-gated ultra-thin graphene field effect transistor (GFET) suitable for electronic sensing application is modelled. The applied simulation approach reproduces accurately the transport properties of the GFET characteristics and enables investigation of the influence of the different physical, biological and chemical factors. The simulation readouts and additional charges in the system are interpreted in the form of current-voltage characteristics and shift in Dirac peaks. These features could be extracted to predict the sensing mechanism of the GFET.","PeriodicalId":89939,"journal":{"name":"International journal of biomedical nanoscience and nanotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49313241","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
Preparation and characterisation of nanofibres from bio cellulose and neem-AgNP bio composites for wound healing 由生物纤维素和印楝-AgNP生物复合材料制备用于伤口愈合的纳米纤维及其表征
International journal of biomedical nanoscience and nanotechnology Pub Date : 2020-04-30 DOI: 10.1504/ijbnn.2020.10029067
A. Ramakrishnan, R. Gokul, M. Pandimadevi
{"title":"Preparation and characterisation of nanofibres from bio cellulose and neem-AgNP bio composites for wound healing","authors":"A. Ramakrishnan, R. Gokul, M. Pandimadevi","doi":"10.1504/ijbnn.2020.10029067","DOIUrl":"https://doi.org/10.1504/ijbnn.2020.10029067","url":null,"abstract":"Bacterial cellulose (BC) is secreted by a few strains of bacteria and consists of a cellulose nanofibre network with unique characteristics. In this study, Gluconoacetobacter xylinus was used to isolate bacterial cellulose. Moreover, microbial cellulose has proven to be a remarkably versatile biomaterial and can be used in paper industry, electronics, wound healing and biomedical devices. The cellulose isolated from G. xylinus was confirmed by the biochemical tests. The parameters for the production of cellulose such as pH, temperature, carbon source, nitrogen source, and growth factor both static and shaking conditions were optimised. The cellulose obtained was observed by phase contrast microscope. The isolated bacterial cellulose is impregnated with silver nanoparticles synthesised by neem leaves extract. The bio cellulose and neem AgNPs were converted into nanofibres by electrospinning technique. The cellulose-PVA composite was analysed by SEM, zeta potential and Fourier transforms infrared spectroscopy (FTIR). This approach can be easily used in the large scale production of bio cellulose fibres loaded with silver nanoparticles. These fibres can be used in the wound dressing including use as a biomaterial for scaffolds in tissue engineering.","PeriodicalId":89939,"journal":{"name":"International journal of biomedical nanoscience and nanotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49494977","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: 1
The pH role about synthesis, distribution and potential applications of gold nanoparticles pH对金纳米粒子合成、分布及潜在应用的影响
International journal of biomedical nanoscience and nanotechnology Pub Date : 2020-04-29 DOI: 10.1504/ijbnn.2020.10029083
Blanca Estela Chávez Sandoval, José A López, Francisco García Franco, Ezel Jacome Galindo Pérez, Anatolio Martínez Jiménez, M. A. Hernández
{"title":"The pH role about synthesis, distribution and potential applications of gold nanoparticles","authors":"Blanca Estela Chávez Sandoval, José A López, Francisco García Franco, Ezel Jacome Galindo Pérez, Anatolio Martínez Jiménez, M. A. Hernández","doi":"10.1504/ijbnn.2020.10029083","DOIUrl":"https://doi.org/10.1504/ijbnn.2020.10029083","url":null,"abstract":"The synthesis of metallic nanoaprticles (NPs) is currently performed through the development of methodologies using microorganisms, plant extracts, and even organic waste, seeking to mitigate the impact on the environment. However, for both synthesis and biosynthesis it is necessary to consider physical and chemical factors such as temperature, stirring and pH, that allow controlling size and shape in an accurate way, as size and shape play an important role in the optical, electronic and thermal properties and determine many features of the structure and activity of molecules and biomolecules. In this work, we carry out chemical synthesis and biosynthesis of AuNPs at acidic (3-6), neutral (7) and basic (9) pH; the process is fast, simple and eco-friendly. We obtained AuNPs from 5-100 nm and determined that the pH of the solution is a key factor in the distribution and shape of the nanoparticles. Uniform AuNPs were obtained at neutral pH, or values of pH near neutrality. In addition, they have potential applications in various fields, due to their optical, magnetic, catalytic and electrical properties.","PeriodicalId":89939,"journal":{"name":"International journal of biomedical nanoscience and nanotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43576782","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: 2
Recent advances in chemical functionalisation of graphene and sensing applications 石墨烯化学功能化及其传感应用的最新进展
International journal of biomedical nanoscience and nanotechnology Pub Date : 2020-04-29 DOI: 10.1504/ijbnn.2020.10029056
Geoffrey Ijeomah, F. Samsuri, Felix Obite, M. Zawawi
{"title":"Recent advances in chemical functionalisation of graphene and sensing applications","authors":"Geoffrey Ijeomah, F. Samsuri, Felix Obite, M. Zawawi","doi":"10.1504/ijbnn.2020.10029056","DOIUrl":"https://doi.org/10.1504/ijbnn.2020.10029056","url":null,"abstract":"Graphene, a one-atom-thick, sp2-hybridised allotrope of carbon, has attracted massive interest due to its outstanding electrical, mechanical, thermal and optical properties. The material of graphene is remarkably stable, with a huge potential for developing various types of sensors, including biomedical sensing where enhanced specificity, sensitivity, label-free nature and cost effectiveness for rapid point-of-care detection of diseases are paramount. This is due to the simplicity with which its electronic properties can be modified since each atom in the structure directly interacts with the sensing environment. These unique characteristics can be exploited for several kinds of sensing applications such as electrochemical and electrical sensors as well as optical sensors. While pristine graphene is desirable for applications that require high electrical conductivity, many other applications require functionalised graphene for optimal performance. Therefore, the functionalisation of graphene is a significant step towards tuning its structure for various sensing applications. In this review, we report recent technological progress in the chemical functionalisation of graphene and its sensing applications.","PeriodicalId":89939,"journal":{"name":"International journal of biomedical nanoscience and nanotechnology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42115618","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: 2
Ameliorative effects of selenium nanoparticles on letrozole induced polycystic ovarian syndrome in adult rats 纳米硒对来曲唑诱导的成年大鼠多囊卵巢综合征的改善作用
International journal of biomedical nanoscience and nanotechnology Pub Date : 2020-04-29 DOI: 10.1504/ijbnn.2020.10029064
Maisra Azhar Butt, A. Ullah, M. Kiyani, S. Jahan
{"title":"Ameliorative effects of selenium nanoparticles on letrozole induced polycystic ovarian syndrome in adult rats","authors":"Maisra Azhar Butt, A. Ullah, M. Kiyani, S. Jahan","doi":"10.1504/ijbnn.2020.10029064","DOIUrl":"https://doi.org/10.1504/ijbnn.2020.10029064","url":null,"abstract":"Selenium (Se) is an essential trace element playing vital role in the physiological processes. It was ignored as a therapeutic agent in the past, but in 1950s it was revealed that it must be obtained from diet as it cannot be produced by organisms. The present study was designed to investigate the anti-androgenic and metabolic effects of selenium nanoparticles (SeNPs) on letrozole induced PCOS using female rats. All rats were administered orally with letrozole (1 mg/kg) in CMC (0.5%) for 36 days. Rats were provided with metformin (2 mg/kg), Se-I (250 mg/kg), Se-II (500 mg/kg), SeNPs-I (50 mg/kg) and SeNPs-II (100 mg/kg) for 15 days. On 37th day animals were sacrificed and biochemical tests, antioxidants and histopathological analysis were performed. The results of the current study depict the anti-androgenic potentials of Se and SeNP for the treatment of PCOS that can be a new drug in the management of PCOS.","PeriodicalId":89939,"journal":{"name":"International journal of biomedical nanoscience and nanotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42198850","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: 2
Different strategies to synthesise gold nanoparticles and their applications 合成金纳米粒子的不同策略及其应用
International journal of biomedical nanoscience and nanotechnology Pub Date : 2020-04-29 DOI: 10.1504/ijbnn.2020.10029065
Fatima Javeria, Shazma Altaf, Alishah Zair, R. Iqbal
{"title":"Different strategies to synthesise gold nanoparticles and their applications","authors":"Fatima Javeria, Shazma Altaf, Alishah Zair, R. Iqbal","doi":"10.1504/ijbnn.2020.10029065","DOIUrl":"https://doi.org/10.1504/ijbnn.2020.10029065","url":null,"abstract":"Nanotechnology is a science which deals with particles in the nanometre size range. They made from different metals such as copper, silver, zinc, gold, platinum etc. Gold nanoparticles have been synthesised at large scale due to their wide applications in diagnostics, treatment, food safety and forensic areas. Nanoparticles are synthesised using different strategies such as chemical synthesis, biogenic synthesis and via biological sources like plants, bacteria, algae, fungi. They are used because of their low toxicity and biocompatibility. Chemical synthesis methods have problems like toxicity so the stimulus of synthesis has shifted from physical and chemical processes towards 'green' chemistry and bioprocesses. Use of plant extracts has been increased widely for synthesis of gold nanoparticles. Microorganisms like bacteria, yeast, fungi, algae and blue green algae have been used mainly for synthesising gold nanoparticles.","PeriodicalId":89939,"journal":{"name":"International journal of biomedical nanoscience and nanotechnology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48497210","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: 1
Enzymatically synthesised nano-gold decorated reduced graphene oxide for development of an enhanced glucose oxidase-based amperometric biosensor 酶法合成纳米金修饰的还原氧化石墨烯，用于开发增强型葡萄糖氧化酶基安培生物传感器
International journal of biomedical nanoscience and nanotechnology Pub Date : 2020-01-01 DOI: 10.1504/ijbnn.2020.10039369
Faizan Ahmed, A. Anees, Q. Husain
{"title":"Enzymatically synthesised nano-gold decorated reduced graphene oxide for development of an enhanced glucose oxidase-based amperometric biosensor","authors":"Faizan Ahmed, A. Anees, Q. Husain","doi":"10.1504/ijbnn.2020.10039369","DOIUrl":"https://doi.org/10.1504/ijbnn.2020.10039369","url":null,"abstract":"We report biological procedure of synthesising nano-gold (AuNPs) over reduced graphene oxide (rGO) using physiologically important enzyme β galactosidase. The [email protected] NC was characterised using biophysical techniques. [email protected] immobilised with glucose oxidase (GOx) was achieved by drop-coating glassy carbon electrode surface with Nafion (Nf) as preservative membrane. EIS, amperometric response and cyclic voltammetry were used to determine electrochemical properties of the biosensor. The Nf/GOx/[email protected]/GCE biosensor had sensitivity of 18.25 μA mM−1 cm−2 and linear range of 0.05-18 mM (R2 = 0.997) with detection limit of 36 μM (S/N = 3). The response time over a period of 60 days depicted the biosensor to be quite stable. The potential of the bioelectrode in assessment of human blood glucose concentrations was compared with commercially available glucose sensors. The sensitivity and stability infer the biosensor is capable of functioning specifically in analysis of glucose in physiological fluids.","PeriodicalId":89939,"journal":{"name":"International journal of biomedical nanoscience and nanotechnology","volume":"122 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66691622","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
Nano-bioconfinement mediated water purification strategies: from primary to application 纳米生物约束介导的水净化策略:从初级到应用
International journal of biomedical nanoscience and nanotechnology Pub Date : 2020-01-01 DOI: 10.1504/ijbnn.2020.10039367
V. Ragul, V. V. Priya, K. Surapaneni, M. Ahamed
{"title":"Nano-bioconfinement mediated water purification strategies: from primary to application","authors":"V. Ragul, V. V. Priya, K. Surapaneni, M. Ahamed","doi":"10.1504/ijbnn.2020.10039367","DOIUrl":"https://doi.org/10.1504/ijbnn.2020.10039367","url":null,"abstract":"The increasing fluoride concentration in the drinking water shows severe ecological threat to all living organisms. Numbers of conventional and non-conventional methods have been used to effectivel...","PeriodicalId":89939,"journal":{"name":"International journal of biomedical nanoscience and nanotechnology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66691607","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
Characterisation of the biosynthesised gold nanomaterials - spectroscopic, dimensional, morphological, stability and structural analysis 生物合成金纳米材料的表征——光谱、尺寸、形态、稳定性和结构分析
International journal of biomedical nanoscience and nanotechnology Pub Date : 2020-01-01 DOI: 10.1504/ijbnn.2020.116340
P. Iyer, M. Priya
{"title":"Characterisation of the biosynthesised gold nanomaterials - spectroscopic, dimensional, morphological, stability and structural analysis","authors":"P. Iyer, M. Priya","doi":"10.1504/ijbnn.2020.116340","DOIUrl":"https://doi.org/10.1504/ijbnn.2020.116340","url":null,"abstract":"","PeriodicalId":89939,"journal":{"name":"International journal of biomedical nanoscience and nanotechnology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66691740","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
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