Introduction: Electrochemical oxidation of Alizarin Yellow R (AYR) was investigated on Ytterbium (Yb) doped Ti/PbO2 electrodes prepared by an electrodeposition method. Method: The etching of the Ti sheet by using a mixed acid of H2SO4 and TA (volume ratio= 2: 1) for 50 min at 100 °C could produce a suitable interface for further modification. The morphologies, composition, and electrochemical properties of Yb doping on the electrode were characterized by SEM (Scanning Electron Microscopy), EDS (Energy-Dispersive Spectroscopy), Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS). The introduction of an appropriate intermediate layer, Zr-SnO2, was performed. We also tried to fabricate Ytterbium (Yb) doped Ti/Zr-SnO2/PbO2 electrodes by an electrodeposition method on the intermediate layer of Zr-SnO2. The surface morphology of the Ti/Zr-SnO2/PbO2 electrode was changed due to the Yb doping, which affected the electrocatalytic activity of the modified electrode. Result: The developed Yb-doped Ti/Zr-SnO2/PbO2 electrode showed improved removal efficiencies toward AYR. Conclusion: The effects of current density and initial AYR concentration on the electrochemical oxidation of AYR by Yb-doped Ti/Zr-SnO2/PbO2 were investigated. The removal rate of AYR was 97.3% in 180 min under the conditions of the current density of 60 mA/cm2 , initial AYR concentration of 50.0 mg L-1 , and Na2SO4 concentration of 0.10 mol L-1 .
{"title":"Improved Electrocatalytic Degradation of Alizarin Yellow R by Ti/Zr-SnO2/PbO2 Electrodes Doped with Ytterbium","authors":"Bi Yang, Guan-Jin Gao, Qing-Dong Miao, Asha Ergu, Guo-Cong Liu, Jiao Zou, Jin-Gang Yu","doi":"10.2174/0115734137302282240422063450","DOIUrl":"https://doi.org/10.2174/0115734137302282240422063450","url":null,"abstract":"Introduction: Electrochemical oxidation of Alizarin Yellow R (AYR) was investigated on Ytterbium (Yb) doped Ti/PbO2 electrodes prepared by an electrodeposition method. Method: The etching of the Ti sheet by using a mixed acid of H2SO4 and TA (volume ratio= 2: 1) for 50 min at 100 °C could produce a suitable interface for further modification. The morphologies, composition, and electrochemical properties of Yb doping on the electrode were characterized by SEM (Scanning Electron Microscopy), EDS (Energy-Dispersive Spectroscopy), Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS). The introduction of an appropriate intermediate layer, Zr-SnO2, was performed. We also tried to fabricate Ytterbium (Yb) doped Ti/Zr-SnO2/PbO2 electrodes by an electrodeposition method on the intermediate layer of Zr-SnO2. The surface morphology of the Ti/Zr-SnO2/PbO2 electrode was changed due to the Yb doping, which affected the electrocatalytic activity of the modified electrode. Result: The developed Yb-doped Ti/Zr-SnO2/PbO2 electrode showed improved removal efficiencies toward AYR. Conclusion: The effects of current density and initial AYR concentration on the electrochemical oxidation of AYR by Yb-doped Ti/Zr-SnO2/PbO2 were investigated. The removal rate of AYR was 97.3% in 180 min under the conditions of the current density of 60 mA/cm2 , initial AYR concentration of 50.0 mg L-1 , and Na2SO4 concentration of 0.10 mol L-1 .","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"28 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140935454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-13DOI: 10.2174/0115734137295957240420064719
Payal Paul, China Limbu, Joydeep Bisawas, Sanjib Kabi, Kamakhya Prakash Misra, Saikat Chattopadhyay
Introduction: This article presents structural and morphological analysis for graphene oxide (GO) synthesized via Hummers' method and for reduced Graphene Oxide (rGO) prepared by chemical reduction. Graphene Oxide is synthesized from graphite powder at room temperature. Hydrazine hydrate is used as a reducing agent to reduce the accumulated GO. Method: To understand the impact of reduction time on structural parameters of produced rGO, three different time limits, i.e. 4, 5, and 6 hrs at 800 °C are used. FTIR spectra show the presence of all functional groups to confirm the authenticity of rGO samples. The XRD peaks are utilized to calculate different structural parameters for all the samples to identify the effect of reduction time. A change in the band gap energy may be noticed from UV-Vis absorption spectra. Result: It indicates that with the increase in reduction time, the absorption edge shifts to a lower wavelength value. FESEM micrographs reveal a flake-like random growth of rGO with prominent wrinkled structures, which is a signature of graphene-like 2D material. Conclusion: Hence, from the structural and absorption studies, it can be concluded that an increase in reduction time will produce smaller rGO flakes in the Hummers synthesis method.
{"title":"Optimization of Reduction Time for Chemically Synthesized rGO","authors":"Payal Paul, China Limbu, Joydeep Bisawas, Sanjib Kabi, Kamakhya Prakash Misra, Saikat Chattopadhyay","doi":"10.2174/0115734137295957240420064719","DOIUrl":"https://doi.org/10.2174/0115734137295957240420064719","url":null,"abstract":"Introduction: This article presents structural and morphological analysis for graphene oxide (GO) synthesized via Hummers' method and for reduced Graphene Oxide (rGO) prepared by chemical reduction. Graphene Oxide is synthesized from graphite powder at room temperature. Hydrazine hydrate is used as a reducing agent to reduce the accumulated GO. Method: To understand the impact of reduction time on structural parameters of produced rGO, three different time limits, i.e. 4, 5, and 6 hrs at 800 °C are used. FTIR spectra show the presence of all functional groups to confirm the authenticity of rGO samples. The XRD peaks are utilized to calculate different structural parameters for all the samples to identify the effect of reduction time. A change in the band gap energy may be noticed from UV-Vis absorption spectra. Result: It indicates that with the increase in reduction time, the absorption edge shifts to a lower wavelength value. FESEM micrographs reveal a flake-like random growth of rGO with prominent wrinkled structures, which is a signature of graphene-like 2D material. Conclusion: Hence, from the structural and absorption studies, it can be concluded that an increase in reduction time will produce smaller rGO flakes in the Hummers synthesis method.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"207 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140935426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-08DOI: 10.2174/0115734137283785240118095556
Rency Rajan, Alfred Kirubaraj, S. Senith, Shajin Prince, S.R. Jino Ramson
Introduction: This research delves into utilizing the Direct Laser Lithography System to produce micro/nanopattern arrays with grating-based periodic structures. Initially, refining the variation in periodic structures within these arrays becomes a pivotal pursuit. This demands a deep comprehension of how structural variation aligns with specific applications, particularly in photonics and material science. Method: Advancements in hardware, software, or process optimization techniques hold potential for reaching this objective. Using an optical beam, this system enables the engraving of moderate periodic and quasi-periodic structures, enhancing pattern formation in a three-dimensional environment. Through cost-effective direct-beam interferometry systems utilizing 405 nm GaN and 290 to 780 nm AlInGaN semiconductor laser diodes, patterns ranging from in period were created, employing 300 nm gratings. Result: The system's cost-efficiency and ability to achieve high-resolution permit the creation of both regular and irregular grating designs. By employing an optical head assembly from a bluray disc recorder, housing a semiconductor laser diode and an objective lens with an NA of 0.85, this system displays promising potential in progressing the fabrication of micro/nanopattern arrays. Conclusion: Assessing their optical, mechanical, and electrical properties and exploring potential applications across varied fields like optoelectronics, photovoltaics, sensors, and biomedical devices represent critical strides for further exploration and advancement.
导言：本研究深入探讨如何利用直接激光光刻系统制作具有基于光栅的周期性结构的微/纳米图案阵列。起初，完善这些阵列中周期性结构的变化是一项关键的任务。这就要求深入理解结构变化如何与特定应用相匹配，尤其是在光子学和材料科学领域。方法：硬件、软件或流程优化技术的进步为实现这一目标提供了可能。该系统使用光束，可雕刻中等周期和准周期结构，增强三维环境中的图案形成。通过使用 405 nm GaN 和 290 至 780 nm AlInGaN 半导体激光二极管的高性价比直接光束干涉测量系统，利用 300 nm 光栅制作出了周期不等的图案。结果：该系统的成本效益和实现高分辨率的能力允许创建规则和不规则光栅设计。该系统采用蓝光光盘刻录机的光学头组件，容纳一个半导体激光二极管和一个 NA 值为 0.85 的物镜，在微/纳米图案阵列的制作方面显示出巨大的潜力。结论评估微/纳米图案阵列的光学、机械和电气特性，探索其在光电、光伏、传感器和生物医学设备等不同领域的潜在应用，是进一步探索和进步的关键步骤。
{"title":"Development of Micro/Nano Pattern Arrays with Grating-Based Periodic Structures using the Direct Laser Lithography System","authors":"Rency Rajan, Alfred Kirubaraj, S. Senith, Shajin Prince, S.R. Jino Ramson","doi":"10.2174/0115734137283785240118095556","DOIUrl":"https://doi.org/10.2174/0115734137283785240118095556","url":null,"abstract":"Introduction: This research delves into utilizing the Direct Laser Lithography System to produce micro/nanopattern arrays with grating-based periodic structures. Initially, refining the variation in periodic structures within these arrays becomes a pivotal pursuit. This demands a deep comprehension of how structural variation aligns with specific applications, particularly in photonics and material science. Method: Advancements in hardware, software, or process optimization techniques hold potential for reaching this objective. Using an optical beam, this system enables the engraving of moderate periodic and quasi-periodic structures, enhancing pattern formation in a three-dimensional environment. Through cost-effective direct-beam interferometry systems utilizing 405 nm GaN and 290 to 780 nm AlInGaN semiconductor laser diodes, patterns ranging from in period were created, employing 300 nm gratings. Result: The system's cost-efficiency and ability to achieve high-resolution permit the creation of both regular and irregular grating designs. By employing an optical head assembly from a bluray disc recorder, housing a semiconductor laser diode and an objective lens with an NA of 0.85, this system displays promising potential in progressing the fabrication of micro/nanopattern arrays. Conclusion: Assessing their optical, mechanical, and electrical properties and exploring potential applications across varied fields like optoelectronics, photovoltaics, sensors, and biomedical devices represent critical strides for further exploration and advancement.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"35 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140935075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-27DOI: 10.2174/0115734137296313240417080456
Xin-Kun Lv, Qi Zhong, Yong-Kun Li, Jin-Gang Yu
Introduction: The electromagnetic radiation caused by the increasing application of electronic devices is associated with environmental hazards and health risks. background: The electromagnetic radiation caused by the increasing application of electronic devices is associated with environmental hazards and health risks. With the rapid development of science and technology, it is urgent to reduce electromagnetic interference by introducing effective electromagnetic shielding materials. Furthermore, novel electromagnetic shielding materials with increasing stability and decreasing density have become the focus of the current researches. Method: With the rapid development of science and technology, it is urgent to reduce electromagnetic interference by introducing effective electromagnetic shielding materials. Furthermore, novel electromagnetic shielding materials with increasing stability and decreasing density have become the focus of the current research. Herein, silver (Ag) coated rubber (AR) micro-particles (MPs) were prepared by coating Ag nanoparticles (NPs) onto waste AR MPs. objective: Fabrication of Silver (Ag) coated rubber (AR) micro-particles (MPs). Result: The AR MPs not only exhibited superior electromagnetic shielding performance with the electromagnetic interference (EMI) shielding effectiveness (SE) value of 6.1 dB at 5.8 GHz, but also possessed excellent long-time stability (240 h) in high-temperature (85 °C) and high humidity (85% RH) environment. Due to the low density (0.66 g/cm3) of AR-3 MPs, its practical application in lightweight and highly integrated electronic devices is guaranteed. Conclusion: The developed AR MPs have exhibited broad application prospects in the electromagnetic interference (EMI) shielding field due to the good EMI shielding performance, high stability and low density.
{"title":"Silver-Coated Waste Rubber Micro-Particles with Low Density, High Stability, and Excellent Electromagnetic Shielding Ability: Design, Preparation, and Characterization","authors":"Xin-Kun Lv, Qi Zhong, Yong-Kun Li, Jin-Gang Yu","doi":"10.2174/0115734137296313240417080456","DOIUrl":"https://doi.org/10.2174/0115734137296313240417080456","url":null,"abstract":"Introduction: The electromagnetic radiation caused by the increasing application of electronic devices is associated with environmental hazards and health risks. background: The electromagnetic radiation caused by the increasing application of electronic devices is associated with environmental hazards and health risks. With the rapid development of science and technology, it is urgent to reduce electromagnetic interference by introducing effective electromagnetic shielding materials. Furthermore, novel electromagnetic shielding materials with increasing stability and decreasing density have become the focus of the current researches. Method: With the rapid development of science and technology, it is urgent to reduce electromagnetic interference by introducing effective electromagnetic shielding materials. Furthermore, novel electromagnetic shielding materials with increasing stability and decreasing density have become the focus of the current research. Herein, silver (Ag) coated rubber (AR) micro-particles (MPs) were prepared by coating Ag nanoparticles (NPs) onto waste AR MPs. objective: Fabrication of Silver (Ag) coated rubber (AR) micro-particles (MPs). Result: The AR MPs not only exhibited superior electromagnetic shielding performance with the electromagnetic interference (EMI) shielding effectiveness (SE) value of 6.1 dB at 5.8 GHz, but also possessed excellent long-time stability (240 h) in high-temperature (85 °C) and high humidity (85% RH) environment. Due to the low density (0.66 g/cm3) of AR-3 MPs, its practical application in lightweight and highly integrated electronic devices is guaranteed. Conclusion: The developed AR MPs have exhibited broad application prospects in the electromagnetic interference (EMI) shielding field due to the good EMI shielding performance, high stability and low density.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"20 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140809221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: In recent years, graphene oxides have convoked significant attention across various scientific disciplines, including physics, chemistry, and materials science, owing to their extraordinary physical properties, chemical tunability, and vast possibilities for their applications. As a result, our keen interest lies in exploring nanographene oxide and presenting a comprehensive review on this subject. This paper provides a thorough examination of eminently progressive advancements in the synthesis, properties, and performance of graphene oxide. Synthetic chemists venturing into this expanding field of material science and researchers exploring the applications of graphene oxide will find immense value in this review. The comprehensive behavior towards the alchemy of graphene oxide will aid in better apprehension of the current approaches, scope and their limitations in utilizing this remarkable material. Moreover, to promote further research and development in this area, we deliberate on the technical challenges associated with graphene oxide and offer suggestions for several future research directions. This review serves as a valuable resource, encouraging scientific advancements and innovation in the exploration of graphene oxide's potential in various applications. To facilitate further research and development, the technical challenges are discussed, and several future research directions are also suggested in this paper.
{"title":"Brief Overview of Nanographene Oxide and its Possible Application","authors":"Srishti Dutta, Dishen Kumar Banjara, Abhilash Pandey, Devanand Sahu, Vanshika Sharma, Goutam Kumar Patra","doi":"10.2174/0115734137282716240404052535","DOIUrl":"https://doi.org/10.2174/0115734137282716240404052535","url":null,"abstract":": In recent years, graphene oxides have convoked significant attention across various scientific disciplines, including physics, chemistry, and materials science, owing to their extraordinary physical properties, chemical tunability, and vast possibilities for their applications. As a result, our keen interest lies in exploring nanographene oxide and presenting a comprehensive review on this subject. This paper provides a thorough examination of eminently progressive advancements in the synthesis, properties, and performance of graphene oxide. Synthetic chemists venturing into this expanding field of material science and researchers exploring the applications of graphene oxide will find immense value in this review. The comprehensive behavior towards the alchemy of graphene oxide will aid in better apprehension of the current approaches, scope and their limitations in utilizing this remarkable material. Moreover, to promote further research and development in this area, we deliberate on the technical challenges associated with graphene oxide and offer suggestions for several future research directions. This review serves as a valuable resource, encouraging scientific advancements and innovation in the exploration of graphene oxide's potential in various applications. To facilitate further research and development, the technical challenges are discussed, and several future research directions are also suggested in this paper.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"37 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140628585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-19DOI: 10.2174/0115734137286096240320075126
Jeepa K J, T D Subash, K. S. Joseph Wilson, J. Ajayan, Malathy Batumalay
Introduction: A modern genre of solar technology is Perovskite solar cells (PSCs), which are growing rapidly because they work well. The composition of links within the hole transport materials, electron transport materials and the footprint on PSCs is perovskite Method: The traditional genre of lead halide perovskite can be swapped with a new perovskite compound called Cs2TiBr6. Cs2TiBr6 has better properties when it comes to light, electricity, and solar energy. When comparing the performance of various electron transport films (ETFs) for the effective operation of perovskite, TiO2 is recognized as an ETF as it has higher thermal stability, low-cost, and appropriate energy level Results: The most productive hole transport film (HTF) for these perovskite solar cells, compared to other HTFs, has been demonstrated as V2O5. Conclusion: The various solar cell characteristics of the proposed device, the "Au/V2O5/Cs2TiBr6/TiO2/TCO" perovskite solar cell, are investigated in this examination by tuning the parameters such as temperature, series resistance, defect density, etc.
{"title":"Optimization of Lead-Free Cs2TiBr6 Green Perovskite Solar Cell for Future Renewable Energy Applications","authors":"Jeepa K J, T D Subash, K. S. Joseph Wilson, J. Ajayan, Malathy Batumalay","doi":"10.2174/0115734137286096240320075126","DOIUrl":"https://doi.org/10.2174/0115734137286096240320075126","url":null,"abstract":"Introduction: A modern genre of solar technology is Perovskite solar cells (PSCs), which are growing rapidly because they work well. The composition of links within the hole transport materials, electron transport materials and the footprint on PSCs is perovskite Method: The traditional genre of lead halide perovskite can be swapped with a new perovskite compound called Cs2TiBr6. Cs2TiBr6 has better properties when it comes to light, electricity, and solar energy. When comparing the performance of various electron transport films (ETFs) for the effective operation of perovskite, TiO2 is recognized as an ETF as it has higher thermal stability, low-cost, and appropriate energy level Results: The most productive hole transport film (HTF) for these perovskite solar cells, compared to other HTFs, has been demonstrated as V2O5. Conclusion: The various solar cell characteristics of the proposed device, the \"Au/V2O5/Cs2TiBr6/TiO2/TCO\" perovskite solar cell, are investigated in this examination by tuning the parameters such as temperature, series resistance, defect density, etc.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"12 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140628614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-03DOI: 10.2174/0115734137295190240321042642
Yang Feng, Ping Liang, Ziwen Xia, Hongyan Peng, Shihua Zhao
:: Silicon Nanowires (SiNWs), a novel category of nanomaterials, exhibit several outstanding properties, including superior transistor performance, quantum tunneling effects, and remarkable electrical and optical capabilities. These properties are expected to contribute significantly to the development of future nanodevices, such as sensors and optoelectronic components. The potential for device miniaturization with SiNWs is based on their ease of monocrystallization. This leads to a reduced rate of hole-electron complexes and their extensive specific surface area that promotes boundary effects, thereby diminishing conductivity. Characterized by unique structural attributes, SiNWs hold promise for a wide range of applications in various sectors. To date, multiple methods have been established for SiNW fabrication, including solgel, electrochemical, laser ablation, chemical vapor deposition, and thermal vapor deposition techniques. Subsequently, the focus has shifted to the application of SiNWs in electronics, energy, and biomedicine. SiNWs are instrumental in producing high-performance electronic devices, such as field-effect transistors, sensors, and memory units. They also exhibit outstanding photovoltaic properties, making them suitable for high-efficiency solar cell and photocatalyst production. Additionally, SiNWs are poised to make significant contributions to biomedicine, particularly in biosensors, drug delivery systems, and tissue engineering materials. This article provides a concise review of the current status of SiNWs in electronics, sensing devices, and solar cell applications, and their roles in high-performance transistors, biosensors, and solar cells. It concludes with an exploration of the challenges and prospects for SiNWs. In summary, the unique attributes of SiNWs establish them as a versatile nanomaterial with broad applicability. This review offers a comprehensive overview of SiNW research and theoretical insights that may guide similar studies. The insights into recent SiNW research presented here are intended to inform future applications and investigations involving these nanomaterials.
{"title":"Application of Silicon Nanowires","authors":"Yang Feng, Ping Liang, Ziwen Xia, Hongyan Peng, Shihua Zhao","doi":"10.2174/0115734137295190240321042642","DOIUrl":"https://doi.org/10.2174/0115734137295190240321042642","url":null,"abstract":":: Silicon Nanowires (SiNWs), a novel category of nanomaterials, exhibit several outstanding properties, including superior transistor performance, quantum tunneling effects, and remarkable electrical and optical capabilities. These properties are expected to contribute significantly to the development of future nanodevices, such as sensors and optoelectronic components. The potential for device miniaturization with SiNWs is based on their ease of monocrystallization. This leads to a reduced rate of hole-electron complexes and their extensive specific surface area that promotes boundary effects, thereby diminishing conductivity. Characterized by unique structural attributes, SiNWs hold promise for a wide range of applications in various sectors. To date, multiple methods have been established for SiNW fabrication, including solgel, electrochemical, laser ablation, chemical vapor deposition, and thermal vapor deposition techniques. Subsequently, the focus has shifted to the application of SiNWs in electronics, energy, and biomedicine. SiNWs are instrumental in producing high-performance electronic devices, such as field-effect transistors, sensors, and memory units. They also exhibit outstanding photovoltaic properties, making them suitable for high-efficiency solar cell and photocatalyst production. Additionally, SiNWs are poised to make significant contributions to biomedicine, particularly in biosensors, drug delivery systems, and tissue engineering materials. This article provides a concise review of the current status of SiNWs in electronics, sensing devices, and solar cell applications, and their roles in high-performance transistors, biosensors, and solar cells. It concludes with an exploration of the challenges and prospects for SiNWs. In summary, the unique attributes of SiNWs establish them as a versatile nanomaterial with broad applicability. This review offers a comprehensive overview of SiNW research and theoretical insights that may guide similar studies. The insights into recent SiNW research presented here are intended to inform future applications and investigations involving these nanomaterials.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"11 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140577321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: The remarkable physicochemical properties of Graphene oxide (GO), a graphene derivative, have made it a material with intriguing medical administration potential. Its 2D allotropic nature is the source of its biological flexibility. The transportation of genes and small molecules are just two of the many biomedical applications of graphene and its composite. Antibacterial use in tooth and bone grafts, biofunctionalization of proteins, and treatment of cancer are among other potential uses. The biocompatibility of the freshly synthesized nanomaterials opens up a world of potential biological and medicinal uses. Furthermore, GO's versatility makes it an ideal component for usage in other drug delivery systems, such as hydrogels, nanoparticles, and micelles. This review aims to compile the existing body of knowledge regarding the use of GO in drug delivery by delving into its many potential uses, obstacles, and future developments.
:氧化石墨烯（GO）是一种石墨烯衍生物，其非凡的物理化学特性使其成为一种具有引人入胜的医疗管理潜力的材料。它的二维各向同性是其生物灵活性的源泉。基因和小分子的运输只是石墨烯及其复合材料众多生物医学应用中的两种。在牙齿和骨骼移植中的抗菌应用、蛋白质的生物功能化以及癌症治疗等都是石墨烯的潜在用途。新合成纳米材料的生物相容性为生物和医药用途开辟了广阔的前景。此外，GO 的多功能性使其成为其他给药系统（如水凝胶、纳米颗粒和胶束）的理想成分。本综述旨在通过深入研究 GO 的多种潜在用途、障碍和未来发展，汇编有关 GO 在给药方面应用的现有知识。
{"title":"A Bird View on the Role of Graphene Oxide Nanosystems in Therapeutic Delivery","authors":"Sanchit Dhankar, Nitika Garg, Samrat Chauhan, Monika Saini","doi":"10.2174/0115734137299120240312044808","DOIUrl":"https://doi.org/10.2174/0115734137299120240312044808","url":null,"abstract":": The remarkable physicochemical properties of Graphene oxide (GO), a graphene derivative, have made it a material with intriguing medical administration potential. Its 2D allotropic nature is the source of its biological flexibility. The transportation of genes and small molecules are just two of the many biomedical applications of graphene and its composite. Antibacterial use in tooth and bone grafts, biofunctionalization of proteins, and treatment of cancer are among other potential uses. The biocompatibility of the freshly synthesized nanomaterials opens up a world of potential biological and medicinal uses. Furthermore, GO's versatility makes it an ideal component for usage in other drug delivery systems, such as hydrogels, nanoparticles, and micelles. This review aims to compile the existing body of knowledge regarding the use of GO in drug delivery by delving into its many potential uses, obstacles, and future developments.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"2018 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140301323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
:: During the past few decades, great efforts have been devoted to developing non-toxic, low-cost, green and studied photocatalysts for the degradation of toxic dyes from surface water with the aid of sustainable, plentiful, and renewable solar light irradiation. Perovskite oxides with a wide range of applications, including photocatalytic water decontamination possess unique properties that make them suitable for performing efficiently in visible spectrum and facilitate catalytic reactions. This mini-review specifically specializes in double/layered perovskites and their associated materials and summarizes the recent improvement of double/layered perovskite photocatalysts and their packages in the degradation of organic dyes.
{"title":"A Brief Review on Solar Light Assisted Photocatalytic Degradation of Dyes using Double/Layered Perovskites","authors":"Rasmirekha Pattanaik, Debapriya Pradhan, Suresh Kumar Dash","doi":"10.2174/0115734137296172240311112922","DOIUrl":"https://doi.org/10.2174/0115734137296172240311112922","url":null,"abstract":":: During the past few decades, great efforts have been devoted to developing non-toxic, low-cost, green and studied photocatalysts for the degradation of toxic dyes from surface water with the aid of sustainable, plentiful, and renewable solar light irradiation. Perovskite oxides with a wide range of applications, including photocatalytic water decontamination possess unique properties that make them suitable for performing efficiently in visible spectrum and facilitate catalytic reactions. This mini-review specifically specializes in double/layered perovskites and their associated materials and summarizes the recent improvement of double/layered perovskite photocatalysts and their packages in the degradation of organic dyes.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"4 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140200280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: The electrochemical sensors convert biological or chemical information, such as analyte concentration or a biomolecular (biochemical receptor) interaction, into electrical signals. In this paper, we describe the development of a poly-thionine/ single-walled carbon nanotube (P-Th/SWCNT) composite for the electrochemical detection of ascorbic acid (vitamin C). Methods: To improve electrochemical performance, we attempted to electro-polymerize the thionine monomers, an essential chemical building block, directly on the surface of singlewalled carbon nanotubes (SWCNT). Results: Field Emission Scanning electron microscopy (FESEM) and energy dispersive spectroscopy (EDS) results revealed that a complex structure of the P-Th/SWCNT was formed. The presence of carbon (C), oxygen (O), nitrogen (N), and sulfur (S) components was confirmed, which indicated the effective fusion of poly-thionine onto SWCNT. Moreover, the X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy confirmed the composite formation. Utilizing cyclic voltammetry, the composite's electrochemical behavior was examined. Conclusions: Excellent electrocatalytic activity towards the oxidation of ascorbic acid was shown by the P-Th/SWCNT composite. The as-prepared P-Th/SWCNT composite-modified sensor can detect ascorbic acid in food, medical, and pharmaceutical samples.
{"title":"Poly-Thionine/ SWCNT Nanocomposite Coated Electrochemical Sensor for Determination of Vitamin C","authors":"Sangeetha Dhanapalan, Vasanth Magesh, Raji Atchudan, Sandeep Arya, Dhanraj Ganapathy, Deepak Nallaswamy, Ashok Sundramoorthy","doi":"10.2174/0115734137289697240216070503","DOIUrl":"https://doi.org/10.2174/0115734137289697240216070503","url":null,"abstract":"Background: The electrochemical sensors convert biological or chemical information, such as analyte concentration or a biomolecular (biochemical receptor) interaction, into electrical signals. In this paper, we describe the development of a poly-thionine/ single-walled carbon nanotube (P-Th/SWCNT) composite for the electrochemical detection of ascorbic acid (vitamin C). Methods: To improve electrochemical performance, we attempted to electro-polymerize the thionine monomers, an essential chemical building block, directly on the surface of singlewalled carbon nanotubes (SWCNT). Results: Field Emission Scanning electron microscopy (FESEM) and energy dispersive spectroscopy (EDS) results revealed that a complex structure of the P-Th/SWCNT was formed. The presence of carbon (C), oxygen (O), nitrogen (N), and sulfur (S) components was confirmed, which indicated the effective fusion of poly-thionine onto SWCNT. Moreover, the X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy confirmed the composite formation. Utilizing cyclic voltammetry, the composite's electrochemical behavior was examined. Conclusions: Excellent electrocatalytic activity towards the oxidation of ascorbic acid was shown by the P-Th/SWCNT composite. The as-prepared P-Th/SWCNT composite-modified sensor can detect ascorbic acid in food, medical, and pharmaceutical samples.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"17 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140008382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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