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Rasheed M, Saira F, Batool Z, Khan HM, Yaseen J, Arshad M, Kalsoom A, Ahmed HE, Ashiq MN. Facile synthesis of a CuSe/PVP nanocomposite for ultrasensitive non-enzymatic glucose biosensing. RSC Adv 2023; 13:26755-26765. [PMID: 37681046 PMCID: PMC10481426 DOI: 10.1039/d3ra03175f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 08/03/2023] [Indexed: 09/09/2023] Open
Abstract
Non-enzymatic glucose biosensors show high sensitivity, lower response time, wide linear range and low cost. Copper based composites show excellent electrocatalytic tunability and lead to a better charge transfer in electrochemical non-enzymatic glucose biosensors. In this work, a nanocomposite of polyvinylpyrrolidone (PVP) and copper selenide was synthesized by a facile one pot sol gel method. Synthesized nanomaterials were characterized by XRD, FTIR, UV-visible spectroscopy, SEM, EDS and XPS techniques. Electrochemical behavior was analyzed by cyclic voltammetry (CV), electrochemical impendence (EIS) and chronoamperometry techniques. XRD analysis revealed a hexagonal structure and crystalline nature of CuSe/PVP. FTIR spectra depicted C-N bonding at 1284 cm-1 and C[double bond, length as m-dash]O stretching at 1634 cm-1, which indicated the presence of PVP in the nanocomposite. Stretching at 823 cm-1 was attributed to the presence of copper selenide. UV-visible absorption indicated the bandgap of copper selenide/PVP at 2.7 eV. SEM analysis revealed a flake like morphology of CuSe/PVP. EDS and XPS analysis confirmed the presence of copper and selenium in the prepared nanocomposite. Prior to employing for biosensing applications, it is important to evaluate the antibacterial activity of nanomaterials for long term use in biological in vitro testing. These materials have shown an efficient inhibition zone of 26 mm against Gram negative Pseudomonas at 50 μg ml-1 and MIC value of 10 μg ml-1. Cyclic voltammetry shows that CuSe/PVP is a promising biosensor for monitoring glucose levels in a wide linear range of 0.5 mM to 3 mM at an excellent sensitivity of 13 450 μA mM-1 cm-2 with an LOD of 0.223 μM. Chronoamperometry measurements revealed a selective behavior of CuSe/PVP for glucose biosensing amongst ascorbic acid and dopamine as common interfering molecules. The nanocomposite was stable after 8 repeated cycles with 92% retention for glucose sensing capacity. This is attributed to the stable nature of the CuSe/PVP nanocomposite as well as higher surface area of available active sites. Herein the CuSe/PVP nanocomposite offered reasonable selectivity, high sensitivity wide linear range with very low LOD, as well as being abundant in nature, this Cu based biosensor has promising applications for future point of care tests (POCT).
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Affiliation(s)
- Momna Rasheed
- Institute of Physics, The Islamia University of Bahawalpur Pakistan
| | - Farhat Saira
- Nanoscience and Technology Division, National Center for Physics (NCP) Islamabad Pakistan
| | - Zahida Batool
- Institute of Physics, The Islamia University of Bahawalpur Pakistan
| | - Hasan M Khan
- Institute of Physics, The Islamia University of Bahawalpur Pakistan
| | - Junaid Yaseen
- Institute of Physics, The Islamia University of Bahawalpur Pakistan
| | - Muhammad Arshad
- Nanoscience and Technology Division, National Center for Physics (NCP) Islamabad Pakistan
| | | | - Hafiz Ejaz Ahmed
- Institute of Physics, The Islamia University of Bahawalpur Pakistan
| | - Muhammad Naeem Ashiq
- Institute of Chemical Sciences, Bahauddin Zakariya University of Multan Pakistan
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2
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Patel SR, Chaki SH, Giri RK, Khimani AJ, Vaidya YH, Thakor P, Thakkar AB, Deshpande MP. Pristine, Ni- and Zn-Doped CuSe Nanoparticles: An Antimicrobial, Antioxidant, and Cytotoxicity Study. ACS APPLIED BIO MATERIALS 2023. [PMID: 37289638 DOI: 10.1021/acsabm.3c00090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The strategy of chemical coprecipitation is implemented to synthesize nanoparticles of pristine CuSe, 5 and 10% Ni-doped CuSe, and 5 and 10% Zn-doped CuSe. All of the nanoparticles are found to be near stoichiometric by the evaluation of X-ray energy using electron dispersion spectra, and the elemental mapping shows uniform distribution. By X-ray diffraction examination, all of the nanoparticles are identified as being single-phase and having a hexagonal lattice structure. Field emission microscopy with electrons in both scanning and transmission modes affirmed the spherical configuration of the nanoparticles. The crystalline nature of the nanoparticles is confirmed by the presence of spot patterns observed in the selected area electron diffraction patterns. The observed d value matches well with the d value of the CuSe hexagonal (102) plane. Findings from dynamic light scattering reveal the size distribution of nanoparticles. The nanoparticle's stability is investigated by ζ potential measurements. Pristine and Ni-doped CuSe nanoparticles exhibit ζ potential values in the preliminary stability band of ±10 to ±30 mV, while Zn-doped nanoparticles feature moderate stability levels of ±30 to ±40 mV. The potent antimicrobial effects of synthesized nanoparticles are studied against Staphylococcus aureus, Pseudomonas aeruginosa, Proteus vulgaris, Enterobacter aerogenes, and Escherichia coli bacteria. The 2,2-diphenyl-1-picrylhydrazyl scavenging test is used to investigate the nanoparticle's antioxidant activities. The results showed the highest activity for control (Vitamin C) with an IC50 value of 43.6 μg/mL, while the lowest for Ni-doped CuSe nanoparticles with an IC50 value of 106.2 μg/mL. Brine shrimps are utilized for in vivo cytotoxicity evaluation of the synthesized nanoparticles, which demonstrates that 10% Ni- and 10% Zn-doped CuSe nanoparticles are more damaging on brine shrimp instead on other nanoparticles with a 100% mortality rate. The lung cancer cell line of human (A549) is used to investigate in vitro cytotoxicity. The results indicate that pristine CuSe nanoparticles are more effective in the context of cytotoxicity against the A549 cell lines, possessing an IC50 of 488 μg/mL. The particulars of the outcomes are explained in depth.
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Affiliation(s)
- Sefali R Patel
- P. G. Department of Physics, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India
| | - Sunil H Chaki
- P. G. Department of Physics, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India
- Department of Applied & Interdisciplinary Sciences, CISST, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India
| | - Ranjan Kr Giri
- P. G. Department of Physics, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India
| | - Ankurkumar J Khimani
- Department of Physics, Shri A. N. Patel P. G. Institute of Science and Research, Anand 388001, Gujarat, India
| | - Yati H Vaidya
- Department of Microbiology, Shri A. N. Patel P. G. Institute of Science and Research, Anand 388001, Gujarat, India
| | - Parth Thakor
- B. D. Patel Institute of Paramedical Sciences, Charotar University of Science and Technology, CHARUSAT Campus, Changa 388421, Gujarat, India
| | - Anjali B Thakkar
- Department of Applied & Interdisciplinary Sciences, CISST, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India
- P. G. Department of Biosciences, Sardar Patel University, Satellite Campus, Bakrol-Vadtal Road, Bakrol 388315, Gujarat, India
| | - Milind P Deshpande
- P. G. Department of Physics, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India
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Elwakil BH, Toderas M, El-Khatib M. Arc discharge rapid synthesis of engineered copper oxides nano shapes with potent antibacterial activity against multi-drug resistant bacteria. Sci Rep 2022; 12:20209. [PMID: 36424443 PMCID: PMC9691636 DOI: 10.1038/s41598-022-24514-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 11/16/2022] [Indexed: 11/27/2022] Open
Abstract
Nowadays Nano metals have received an eminent compromise of attention. Even though different nanostructure of same metal maybe gives different results in wide range applications. Copper oxide (CuO-NPs) and Copper Nano wires (CuO-NWs) were prepared in controlled size via the alternating current Arc discharge process. Deionized water and argon gas were the chosen dielectric medium during the process to obtain 2 different forms of copper oxides. By changing the dielectric material from deionized water to argon gas the shape of CuO nanoparticles changed from spherical (CuO-NPs) to wires (CuO-NWS). The yield prepared depicted the purity of the prepared CuO, and their diameters were about 10 ± 5 nm and 30 ± 3 nm for CuO-NWs and CuO-NPs respectively. In vitro cytotoxic effect of the prepared CuO-NWs & CuO-NPs using human normal lung fibroblast cell line (WI-38 cells) revealed that CuO-NWs & CuO-NPs CC50 values were 458.8 and 155.6 µg/mL respectively. Both yields showed potent antibacterial activity against different multi-drug resistant Acinetobacter baumannii strains. A complete eradication of the bacterial growth was noticed after 4 Hrs incubation with CuO-NWs. Moreover, CuO-NWs showed superior antibacterial activity (with minimum inhibitory concentration reached 1.8 µg/mL) over CuO-NPs. The detailed antibacterial activity mechanism of CuO-NWs was further investigated; data proved the precipitation and adsorption of the nanoparticles on the bacterial cell surface leading to cell deformation with reactive oxygen species increment. The results explicated that the nanoparticles shape plays an essential role in the antibacterial activity. Rotational Arc discharge machine might be a promising tool to obtain various metal nanostructures with low cost and environmentally friendly with potent activity.
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Affiliation(s)
- Bassma H. Elwakil
- grid.442603.70000 0004 0377 4159Department of Medical Laboratory Technology, Faculty of Applied Health Sciences Technology, Pharos University in Alexandria, Alexandria, 21526 Egypt
| | - M. Toderas
- grid.19723.3e0000 0001 1087 4092Department of Physics, University of Oradea, 410087 Oradea, Romania
| | - Mostafa El-Khatib
- grid.442603.70000 0004 0377 4159Basic Sciences Department, Faculty of Engineering, Pharos University in Alexandria, Alexandria, 21526 Egypt
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Padre S, Kiruthika S, Mundinamani S, Ravikirana, Surabhi S, Jeong JR, Eshwarappa KM, Murari MS, Shetty V, Ballal M, S. C. G. Mono- and Bimetallic Nanoparticles for Catalytic Degradation of Hazardous Organic Dyes and Antibacterial Applications. ACS OMEGA 2022; 7:35023-35034. [PMID: 36211055 PMCID: PMC9535655 DOI: 10.1021/acsomega.2c03784] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/29/2022] [Indexed: 11/08/2023]
Abstract
In the present work, gold (Au), silver (Ag), and copper (Cu) based mono- and bimetallic NPs are prepared using a cost-effective facile wet chemical route. The pH for the synthesis is optimized in accordance with the optical spectra and supported by the finite difference time domain simulation studies. FESEM and TEM micrographs are used to analyze the morphology of the prepared nanoparticles. TEM images of bimetallic nanoparticles (BMPs) verified their bimetallic nature. XRD studies confirmed the formation of fcc-structured mono- and bimetallic NPs. Photoluminescence studies of the as-synthesized NPs are in good agreement with the previous publications. These synthesized NPs showed enhanced catalytic activity for the reduction/degradation of 4-nitrophenol, rhodamine B, and indigo carmine dyes in the presence of sodium borohydride (NaBH4) compared to NaBH4 alone. For the reduction of 4-nitrophenol, Au, Cu, and CuAg nanoparticles exhibited good catalytic efficiency compared to others, whereas for the degradation of rhodamine B and indigo carmine dyes the catalytic efficiency is comparatively high for CuAg BMPs. Furthermore, the antibacterial assay is carried out, and Ag NPs display effective antibacterial activity against Klebsiella pneumoniae, Salmonella ser. Typhimurium, Acinetobacter baumannii, Shigella flexneri, and Pseudomonas aeruginosa.
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Affiliation(s)
- Shilpa
Molakkalu Padre
- Nanomaterials
and Polymer Physics Lab, Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
- Department
of Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - S. Kiruthika
- Department
of Physics, School of Electrical & Electronics Engineering (SEEE), SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Shridhar Mundinamani
- Department
of Physics, Siddaganga Institute of Technology, Tumakuru 572103, Karnataka, India
| | - Ravikirana
- Department
of Physics and Nanotechnology, SRM Institute
of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - Srivathsava Surabhi
- Laboratorio
de Nanocompuestos, Departamento de Ingeniería de Materiales
(DIMAT), Facultad de Ingeniería (FI), Universidad de Concepción (UdeC), Concepción 4030000, Chile
- Department
of Materials Science and Engineering, Graduate School of Energy Science
and Technology, Chungnam National University, Daejeon 34134, South Korea
| | - Jong-Ryul Jeong
- Department
of Materials Science and Engineering, Graduate School of Energy Science
and Technology, Chungnam National University, Daejeon 34134, South Korea
| | | | | | - Vignesh Shetty
- Department
of Medicine, University of Cambridge, Cambridge CB2 1TN, United Kingdom
| | - Mamatha Ballal
- Department
of Microbiology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Gurumurthy S. C.
- Nanomaterials
and Polymer Physics Lab, Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
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Copper (II) Heterocyclic Thiosemicarbazone Complexes as Single-Source Precursors for the Preparation of Cu9S5 Nanoparticles: Application in Photocatalytic Degradation of Methylene Blue. Catalysts 2022. [DOI: 10.3390/catal12010061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In this study, two copper(II) complexes, [Cu(C6H8N3S2)2]Cl2 (1) and [Cu(C7H10N3S2)2]Cl2·H2O (2), were synthesized from 2-(thiophen-2-ylmethylene)hydrazine-1-carbothioamide (L1H) and 2-(1-(thiophen-2-yl)ethylidene)hydrazine-1-carbothioamide (L2H) respectively and characterized using various spectroscopic techniques and elemental analyses. The as-prepared complexes were used as single-source precursors for the synthesis of oleylamine-capped (OLA@CuxSy), hexadecylamine-capped (HDA@CuxSy), and dodecylamine-capped (DDA@CuxSy) copper sulphide nanoparticles (NPs) via the thermolysis method at 190 °C and 230 °C and then characterized using powder X-ray diffraction (p-XRD), UV-visible spectroscopy, transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The p-XRD diffraction patterns confirmed the formation of crystalline rhombohedral digenite Cu9S5 with the space group R-3m. The TEM images showed the formation of nanoparticles of various shapes including hexagonal, rectangular, cubic, truncated-triangular, and irregularly shaped Cu9S5 nanomaterials. The SEM results showed aggregates and clusters as well as the presence of pores on the surfaces of nanoparticles synthesized at 190 °C. The UV-visible spectroscopy revealed a general blue shift observed in the absorption band edge of the copper sulphide NPs, as compared to bulk CuxSy, with energy band gaps ranging from 2.52 to 3.00 eV. Energy-dispersive X-ray spectroscopy (EDX) confirmed the elemental composition of the Cu9S5 nanoparticles. The nanoparticles obtained at 190 °C and 230 °C were used as catalysts for the photocatalytic degradation of methylene blue (MB) under UV irradiation. Degradation rates varying from 47.1% to 80.0% were obtained after 90 min of exposure time using only 10 mg of the catalyst, indicating that Cu9S5 nanoparticles have potential in the degradation of organic pollutants (dyes).
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