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Uniform and Homogeneous Growth of copper nanoparticles on Electrophoretically Deposited Carbon Nanotubes Electrode for Nonenzymatic Glucose Sensor

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Acta Metallurgica Sinica(English Letters) 2016年第10期29卷 889-894页

作者： Syeda Ammara Shahzadi Shamaila Rehana Sharif Sheeba Ghani Nosheen Zafar Department of Physics University of Engineering and Technology Department of Physics Forman Christian College (A Chartered University)

The multiwalled carbon nanotubes thin-film-based electrode was fabricated by electrophoretic deposition and modified with copper （Cu） nanoparticles to fabricate Cu/CNTs nanocomposite sensor for nonenzymatic glucose detection. The expensive glassy carbon electrode was replaced by fluorine-doped tin oxide glass containing CNTs film to confine the Cu nanoparticles growth by electrodeposition through cyclic voltammetry （CV）. The ultraviolet visible and X-ray diffraction analysis revealed the successful deposition of Cu nanoparticles on the CNTs-modified electrode. The atomic force microscopy images confirrqed the morphology of electrodeposited Cu on CNTs film as uniformly dispersed particles. The electrocatalytic activity of electrode to the glucose oxidation was investigated in alkaline medium by CV and amperometric measurements. The fabricated sensor exhibited a fast response time of less than 5 s and the sensitivity of 314 μA rnM^-1 cm^-2 with linear concentration range （0.02-3.0 mM） having detection limit 10.0 μM. Due to simple preparation of sensor, Cu/CNTs nanocomposite electrodes are a suitable candidate for reliable determination of glucose with good stability.

关键词： Electrophoretic deposition (EPD) Fluorine-doped tin oxide (FTO) substrate Carbon nanotubes copper nanoparticles Nonenzymatic electrocatalysis Glucose sensor

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Deposition of copper nanoparticles on multiwalled carbon nanotubes modified with poly （acrylic acid） and their antimicrobial application in water treatment

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Frontiers of Environmental Science & Engineering 2015年第4期9卷 625-633页

作者： Li SHENG Shuhang HUANG Minghao SUI Lingdian ZHANG Lei SHE Yong CHEN State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and Engineering Tongji University Shanghai 200092 China

A novel hybrid material, Cu-PAA/MWCNTs （copper nanoparticles deposited multiwalled carbon nano- tubes with poly （acrylic acid） as dispersant, was prepared and expected to obtain a more effective and well-dispersed disinfection material for water treatment. X-ray energy dispersive spectroscopy （EDS）, transmission electron microscopy （TEM）, the X-ray fluorescence （XRF）, X-ray photoelectron spectra （XPS）, Fourier transform infrared spectra （FT-IR）, Raman spectroscopy, and thermal gravi- metric analyzer （TGA） were used to characterize the Cu- PAA/MWCNTs. Escherichia coli （E. coil） was employed as the target bacteria. The cell viability determination and fluorescence imaging results demonstrated that Cu-PAA/ MWCNTs possessed strong antimicrobial ability on E. coil. The deposited Cu was suggested to play an important role in the antimicrobial action of Cu-PAA/MWCNTs.

关键词： multiwalled carbon nanotubes copper nanoparticles antimicrobial activity Escherichia coli (E. coil)

Role of Inclined Magnetic Field and copper nanoparticles on Peristaltic Flow of Nanofluid through Inclined Annulus: Application of the Clot Model

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Communications in Theoretical Physics 2017年第6期67卷 704-716页

作者： Iqra Shahzadi S.Nadeem Department of Mathematics Quaid-i-Azam University

A genuine neurotic condition is experienced when some blood constituents accumulate on the wall of the artery get withdrew from the wall, again join the circulatory system and coagulation occur. Role of copper nanoparticles and inclined magnetic field on the peristaltic flow of a nanofluid in an annular region of inclined annulus is *** represent the clot model by considering the small artery as an annulus whose outer tube has a wave of sinusoidal nature and inner tube has a clot on its walls. Lubrication approach is used to simplify the problem. Close form solutions are determined for temperature and velocity profile. Impact of related parameters on pressure rise, pressure gradient,velocity and streamlines are interpreted graphically. Comparison among the pure blood and copper blood is presented and analyzed. One main finding of the considered analysis is that the inclusion of copper nanoparticles enlarges the amplitude of the velocity. Therefore, the considered study plays a dominant role in biomedical applications.

关键词： inclined magnetic field copper nanoparticles inclined annulus clot model exact solution

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An Enzymatic Reaction Modulated Fluorescence-on Omethoate Biosensor Based on Fe_(3)O_(4)@GO and copper nanoparticles

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Journal of Analysis and Testing 2022年第1期6卷 58-66页

作者： Hui Zhang Wu-Kui Kang Ying Wang Xiu-Zhong Wang Li-Hua Lu College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural UniversityQingdao 266109China

The employing of organophosphorus pesticides(OPs),especially,the abusing of OPs,leads to residue accumulation,which causes immense effect to human health and ***,it is an urgent task to develop highly sensitive OPs’detection platforms.A novel enzyme modulated fluorescence-on sensor for sensitive detection of omethoate was successfully constructed,using AT-rich double-stranded DNA(dsDNA)templated copper nanoparticles(CuNPs)as the fluorescent signal and covalently combined magnetic Fe_(3)O_(4)and graphene oxide(GO)as the single-stranded DNA(ssDNA)*** assay just associates acetylcholinesterase(AChE),one strand of dsDNA,acetylcholinein(ATCh),Fe_(3)O_(4)@GO and ascorbic acid(AA)/Cu^(2+).T6-1 and T6-2 are two strands single-stranded DNA(ssDNA)with the AT-rich sequence and continuous T bases at their two ends,*** the aid of Hg^(^(2+)),they can hybridize into a blunt-ended dsDNA with one AT-rich end and one T-Hg^(^(2+))-T base pairs *** omethoate exists,it can inhibit AChE from transducing acetylcholinein(ATCh)into thiocholine(TCh).So,no TCh can snatch Hg^(^(2+))from T-Hg^(^(2+))-T base pairs in blunt-ended T6-1/T6-2.T6-1/T6-2 still keeps its integrity in blunt-ended dsDNA configuration,and hence the subsequently added Fe_(3)O_(4)@GO cannot absorb *** remained blunt-ended T6-1/T6-2 in supernatant can act as the template of CuNPs to produce strong *** developed detection offers a signal-on omethoate detection,which can sensitively detect omethoate in the linear range of 5-200 nmol/L with a detection limit of 2.48 nmol/*** importantly,it can detect omethoate in food and environmental samples,demonstrating high potential in real sample detection.

关键词： Fe_(3)O_(4)@GO AT-rich DNA copper nanoparticles Omethoate Fluorescence

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In Situ Generation of copper nanoparticles in Heat-Treated copper-Containing Masson’s Pine as a Preservative Process for Sawn Timber

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Journal of Renewable Materials 2023年第6期11卷 2665-2678页

作者： Minting Lai Guijun Xie Wanju Li Lamei Li Yongjian Cao Guangdong Provincial Key Laboratory of Silviculture Protection and UtilizationGuangdong Academy of ForestryGuangzhou510520China

Heat-treated wood has good dimensional stability,durability,and color,but its susceptibility to fungal growth affects its commercial *** this study,lumber harvested from mature Masson’s pine(Pinus massoniana Lamb.)was vacuum impregnated with a basic copper salt solution(copper hydroxide,diethanolamine,and polyethylene glycol 200)prior to heat-treatment at 220℃ for 3 *** properties,surface chemistry,crystal structure and sugar contents were tested,compared with heat treatment *** results showed that the samples treated by heating without copper salt treatment showed poor suppression of fungal growth,the copperimpregnated heat-treated wood suppressed(100%)the growth of Botryodiplodia theobromae Pat.,Aspergillus niger ***.,Penicillium citrinum Thom,and Trichoderma viride *** combined results of X-ray photoelectron spectroscopy,X-ray diffraction and sugars analysis suggested that fungal inhibition by the heat-treated copper-bearing Masson’s pine was mainly due to the reduction of the metal salt by PEG200 at high temperature to generate copper *** addition,the reduced sugar content of the treated timber,and hence the nutrient substrate for spoilage microbes,reduced in the presence of the metal salts at *** study has demonstrated an effective method of increasing low-grade wood’s utility and commercial value.

关键词： Heat treatment Masson’s pine sawn timber inhibition of fungal growth copper nanoparticles

copper nanoparticles-Catalyzed One-pot Synthesis of 3,5-Disubstituted Isoxazoles

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Copper Nanoparticles-Catalyzed One-pot Synthesis of 3,5-Disu...

Biosynthesis of copper nanoparticles using an Extract of the root of Asparagus racemosus:Basic Synthesis,Antimicrobial,and Anti-oxidant Potentials

中国化学会第九届全国有机化学学术会议

作者：邓楠聂守杰姚小泉南京航空航天大学材料科学与技术学院

Isoxazoles have exhibited important biological and pharmaceutical activities, and worked as useful building blocks in organic synthesis. Therefore, the development of new methods for their synthesis is of great interest. Among the methodologies reported,[1,2,3] the reaction of hydroxylamines with α,β-unsaturated ketones, provided an effective approach.[3] However, in most of cases, ynones usually need to be prepared previously, and the key intermediate 4 could not be dehydrated directly in absence of the help of other leaving *** the basis of the copper nanoparticles-catalyzed coupling reaction of acid chlorides and terminal alkynes we once reported,[4] an one-pot, three-steps reaction to synthesize 3,5-disubstituted isoxazoles was developed. In this reaction, Cu Nps worked as the solo catalyst not only for the in situ generation of 3 but also for the dehydration of 4, and gave isoxazoles with good to excellent yields.

关键词： 3,5-Disubstituted Isoxazoles One-pot Synthesis copper nanoparticles

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Journal of Clinical and Nursing Research 2024年第2期8卷 137-148页

作者： Subha Veeramani Kirubanandan Shanmugam National Centre for Nano science and Nanotechnology University of MadrasGuindy CampusChennai 600025.India. Saveetha School of Engineering SIMATSThandalamChennai 602105India

copper nanoparticles(CuNPs)have emerged as a promising alternative due to their unique antimicrobial *** synthesis of CuNPs using Asparagus racemosus,commonly known as Shatavari,offers a sustainable and environmentally friendly approach to producing ***,the resulting CuNPs have been found to possess excellent antibacterial,and antioxidant properties,which further expands their potential applications in medicine and environmental *** this article,we discussed the in vitro characterization of the *** vitro studies revealed that CuNPs have the potential for biomedical applications and as a base nanomaterial for the construction of drug delivery and targeting vehicles.

关键词： copper nanoparticles Green Synthesis Asparagus racemosus Antimicrobial and antioxidant activities

Novel Synthetic Methodology of Aurones through Oxidation-Cyclization Tandem Reaction Catalyzed by copper nanoparticles Catalyst

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Novel Synthetic Methodology of Aurones through Oxidation-Cyc...

Synthesis,characterization and antibacterial activity of copper,nickel and bimetallic Cu–Ni nanoparticles for potential use in dental materials

中国化学会全国第十二届有机合成化学学术研讨会

作者： Yu,Min Deng,Nan Yao,Xiaoqaun Department of Applied Chemistry College of Material Science and TechnologyNanjing University of Aeronautics and Astronautics

Aurones(3) have exhibited a wide range of biological activities and have been used as antifungal agents,tyrosinase inhibitors,antioxidants,and *** to the importance of aurones,recently we focused on the catalytic synthesis of aurones and developed different methods for the construction of aurones(Route A&B) On the other hand,in comparison with most of examples using surfactant-free nanoparticles as catalysts,there are few examples reported about the ligand effect on coinage metal nanoparticle-catalyzed ***,several ligand-promoted or ligand & support-promoted,coinage nanoparticle-catalyzed reactions were reported by our groups and the others,3 in which the utilization of ligands proved to be the key role to the ***,we hope to utilize this strategy to achieve a cascade oxidation-cyclization reaction to synthesize aurones directly with 1 as starting material(Route C).It is worthy to note that Cu NPs worked as a bifunctional catalyst in the tandem reaction and were dually activated by bpy ligand and water.

关键词： aurones copper nanoparticles tandem reaction

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Progress in Natural Science:Materials International 2014年第4期24卷 321-328页

作者： Liliana Argueta-Figueroa Raúl A.Morales-Luckie Rogelio J.Scougall-Vilchis Oscar F.Olea-Mejía School of Medicine Autonomous University State of Mexico (UAEMex)Mexico Department of Materials Science Center for Research in Sustainable Chemistry (CIQS)Autonomous University State of Mexico (UAEMex)Km 14.5Carr.Toluca-AtlacomulcoZC 50200Toluca CityState of MexicoMexico Dental Research Center (CIEAO) Autonomous University State of Mexico (UAEMex)Mexico

The antibacterial effect is a desirable property in dental *** of simple methods for the preparation of nanosized metal particles has attracted significant attention because of their future applications due to unusual size-dependent antibacterial ***(Cu),Nickel(Ni) and bimetallic Cu–Ni nanoparticles were prepared by a simple chemical method and their antibacterial activity was tested against the widely used standard human pathogens Staphylococcus aureus(gram-negative) and Escherichia coli(gram-positive).Additionally,these nanoparticles were tested against the dental pathogen Streptococcus *** results are promising for potential use in dental materials science.

关键词： Antibacterial properties Metal nanoparticles copper nanoparticles Nickel nanoparticles Nano-alloy