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Orek C, Keser S, Kaygili O, Zuchowski P, Bulut N. Structures and optical properties of zinc oxide nanoclusters: a combined experimental and theoretical approach. J Mol Model 2023; 29:227. [PMID: 37405592 DOI: 10.1007/s00894-023-05641-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/28/2023] [Indexed: 07/06/2023]
Abstract
CONTEXT In this study, theoretical and experimental analysis of the electrical, optical, and structural properties of a wurtzite-like zinc oxide (ZnO) nanostructure has been done. To investigate how quantum confinement affects the optical characteristics, two distinct ZnO clusters in nanowire structures have been investigated. The [(ZnO)55(H2O)4] system's HOMO-LUMO band gap (BG) was calculated to be 2.99 eV, which is quite close to the experimental measurement. It was found that the BG decreases with the increase in the number of atoms in the cluster in connection with the quantum confinement in nanoclusters. In addition, the lowest excitation energy in TD-DFT calculations of the identical system is in fairly good agreement with the experimental value with a difference of 0.1 eV. We conclude that the CAM-B3LYP functional has highly successful in reproducing the experimental data reported in the present study and previously reported experimental data. METHODS The geometrical optimization of two different sizes of ZnO clusters ([(ZnO)25(H2O)4] and [ZnO)55(H2O)4]) was performed using the CAM-B3LYP functional with no symmetry constraints applied in the gas phase. LANL2DZ basis sets were used for the Zinc (Zn) atom and 6-31G* basis sets for the O and H atoms. To determine their optical and electronic properties, excited state calculations of the pre-optimized structures were performed using the Time-Dependent DFT (TD-DFT) method. Multiwfn, Gaussum 3.0, and GaussView 5.0 programs were used to visualize the results.
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Affiliation(s)
- Cahit Orek
- Department of Physics, Faculty of Science, Firat University, 23119, Elazig, Turkey.
- Kastamonu Univ, Res & Applicat Ctr, TR-37150, Kastamonu, Turkey.
| | - Serhat Keser
- Department of Chemical Technology, EOSB Higher Vocational School, Firat University, 23119, Elazig, Turkey
| | - Omer Kaygili
- Department of Physics, Faculty of Science, Firat University, 23119, Elazig, Turkey
| | - Piotr Zuchowski
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100, Torun, Poland
| | - Niyazi Bulut
- Department of Physics, Faculty of Science, Firat University, 23119, Elazig, Turkey
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Antibacterial Effects of ZnO Nanodisks: Shape Effect of the Nanostructure on the Lethality in Escherichia coli. Appl Biochem Biotechnol 2022; 195:3067-3095. [PMID: 36520354 DOI: 10.1007/s12010-022-04265-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2022] [Indexed: 12/23/2022]
Abstract
The role of the shape of the nanostructure on the antibacterial effects of ZnO nanodisks has been investigated by detailed mass spectrometry-based proteomics along with other spectroscopic and microscopic studies on E. coli. The primary interaction study of the E. coli cells in the presence of ZnO nanodisks showed rigorous cell surface damage disrupting the cell wall/membrane components detected by microscopic and ATR-FTIR studies. Protein profiling of whole-cell extracts in the presence and absence of ZnO nanodisks identified several proteins that are upregulated and downregulated under the stress of the nanodisks. This suggests that the bacterial response to the primary stress leads to a secondary impact of ZnO nanodisk toxicity via regulation of the expression of specific proteins. Results showed that the ZnO nanodisks lead to the over-expression of peptidyl-dipeptidase Dcp, Transketolase-1, etc., which are important to maintaining the osmotic balance in the cell. The abrupt change in osmotic pressure leads to mechanical injury to the membrane, and nutritional starvation conditions, which is revealed from the expression of the key proteins involved in membrane-protein assembly, maintaining membrane integrity, cell division processes, etc. Thus, indicating a deleterious effect of ZnO nanodisk on the protective layer of E. coli. ZnO nanodisks seem to primarily affect the protective membrane layer, inducing cell death via the development of osmotic shock conditions, as one of the possible reasons for cell death. These results unravel a unique behavior of the disk-shaped ZnO nanostructure in executing lethality in E. coli, which has not been reported for other known shapes or morphologies of ZnO nanoforms.
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Bauer EM, Bogliardi G, Ricci C, Cecchetti D, De Caro T, Sennato S, Nucara A, Carbone M. Syntheses of APTMS-Coated ZnO: An Investigation towards Penconazole Detection. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8050. [PMID: 36431536 PMCID: PMC9697174 DOI: 10.3390/ma15228050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Extrinsic chemiluminescence can be an efficient tool for determining pesticides and fungicides, which do not possess any intrinsic fluorescent signal. On this basis, (3-aminopropyl) trimethoxysilane (APTMS)-coated ZnO (APTMS@ZnO) was synthesized and tested as an extrinsic probe for the fungicide penconazole. Several synthetic routes were probed using either a one-pot or two-steps method, in order to ensure both a green synthetic pathway and a good signal variation for the penconazole concentration. The synthesized samples were characterized using X-ray diffraction (XRD), infrared (IR), Raman and ultraviolet-visible (UV-Vis) spectroscopy, scanning electron microscopy (SEM) imaging and associated energy-dispersive X-ray (EDX) analysis. The average size of the synthesized ZnO nanoparticles (NPs) is 54 ± 10 nm, in line with previous preparations. Of all the samples, those synthesized in two steps, at temperatures ranging from room temperature (RT) to a maximum of 40 °C, using water solvent (G-APTMG@ZnO), appeared to be composed of nanoparticles, homogeneously coated with APTMS. Chemiluminescence tests of G-APTMG@ZnO, in the penconazole concentration range 0.7-1.7 ppm resulted in a quenching of the native signal between 6% and 19% with a good linear response, thus indicating a green pathway for detecting the contaminant. The estimated detection limit (LOD) is 0.1 ± 0.01 ppm.
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Affiliation(s)
- Elvira Maria Bauer
- Institute of Structure of Matter, Italian National Research Council (ISM-CNR), Via Salaria km 29.3, 00015 Monterotondo, RM, Italy
| | - Gabriele Bogliardi
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, RM, Italy
| | - Cosimo Ricci
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, RM, Italy
| | - Daniele Cecchetti
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, RM, Italy
| | - Tilde De Caro
- Institute of Nanostructure Materials, National Research Council (ISMN-CNR), Via Salaria km 29.3, 00015 Monterotondo, RM, Italy
| | - Simona Sennato
- Institute of Complex Systems, Italian National Research Council (ISC-CNR) Sapienza Unit, and Physics Department, Sapienza University, P.le A. Moro 5, 00185 Rome, RM, Italy
| | - Alessandro Nucara
- Department of Physics, Sapienza University, P.le A. Moro 5, 00185 Rome, RM, Italy
| | - Marilena Carbone
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, RM, Italy
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Ullah R, Tuzen M. Interactions of Ni/ZnO with alumina support and their influence on deep reactive adsorption desulfurization. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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5
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Fabrication of highly efficient and cost-effective dye-sensitized solar cells using ZnO/MWCNT nanocomposite as photoanode. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05312-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Electroless Deposits of ZnO and Hybrid ZnO/Ag Nanoparticles on Mg-Ca0.3 Alloy Surface: Multiscale Characterization. COATINGS 2022. [DOI: 10.3390/coatings12081109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
ZnO and hybrid of ZnO/Ag structures in the nanometer size were electroless deposited on the Mg-Ca0.3 alloy surface, achieved from aqueous solutions (10−3 M at 21 °C) of ZnO (suspension), Zn(NO3)2 and AgNO3. The surface characterization of the deposits was carried out by Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS), X-Ray Photoelectron Spectroscopy (XPS), Fourier transform infrared (FTIR), UV-Visible and Raman spectroscopy. The nanoparticles (NPs) area size distribution analysis revealed that the average of ZnO-NPs was ~85 nm. Likewise, the Ag-NPs of electroless deposits had an average area size of ~100 nm and nucleated in the vicinity of ZnO-NPs as Ag+ ions have been attracted by the negatively charged O2− atoms of the Zn-O dipole. The ZnO-NPs had the wurtzite structure, as indicated by Raman spectroscopy analysis and XRD complementary analysis. The UV-Visible spectroscopy analysis gave a peak at ~320 nm associated with the decrease in the imaginary part (k) of the refractive index of Ag-NPs. On the Mg-Ca0.3 surface, MgO, Mg(OH)2 and MgCO3 are present due to the Mg-matrix. XRD spectra of Ag-NPs indicated the presence of planes arranged with the FCC hexagonal structure. The reported hybrid ZnO/Ag electroless deposits of NPs are of interest for temporary implant devices, providing antibacterial properties to Mg-Ca0.3 surface, a widely used biodegradable material.
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Smart Agent System for Cyber Nano-Manufacturing in Industry 4.0. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12126143] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
The development of Cyber-Physical Systems (CPS) and the Internet of Things (IoT) has influenced Cyber-Physical Manufacturing Systems (CPMS). Collaborative manufacturing among organizations with geographically distributed operations using Nanomanufacturing (NM) requires integrated networking for enhanced productivity. The present research provides a unique cyber nanomanufacturing framework by combining digital design with various artificial neural networks (ANN) approaches to predict the optimal nano/micro-manufacturing process. It enables the visualization tool for real-time allocation of nano/micro-manufacturing resources to simulate machine availability for five types of NM processes in real-time for a dynamic machine identification system. This research establishes a foundation for a smart agent system with predictive capabilities for cyber nanomanufacturing in real-time.
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Raja G, Nallathambi A, Prakasam A, Gopinath S, Ragupathi C, Narayanan S, Tamizhdurai P, Kumaran R, Alsaiari NS, Abualnaja KM, Ouladsmane M. Effect of lattice strain on structure, morphology, electrical conductivity and magneto-optical and catalytic properties of Ni-doped Mn3O4 nano-crystallites synthesized by microwave route. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Nulu V, Sohn KY. Single-Step Hydrothermal Synthesis of Zinc Oxide Micro/Nanostructures. RUSS J INORG CHEM+ 2021. [DOI: 10.1134/s0036023621100132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Liu C, Li Y, Luo Y, Zhang Y, Zhou T, Deng J. Lab-on-a-ZnO-Submicron-Particle Sensor Array for Monitoring AD upon Cd 2+ Exposure with CSF Tau441% as an Effective Hallmark. Anal Chem 2021; 93:15005-15014. [PMID: 34738809 DOI: 10.1021/acs.analchem.1c02570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In this study, based on the posttreatment strategy, blue-color-emissive ZnO submicron particles (B-ZnO SMPs) and red-color-emissive ZnO submicron particles (R-ZnO SMPs) were obtained from rationally designed Zn-infinite coordination polymer (ICP) precursors. After modification of thiol-containing aptamers, diverse spectral changes in the ultraviolet and visible regions of B- and R-ZnO SMPs toward different tau species were explored to construct a lab-on-a-ZnO-submicron-particle sensor array. Assisted by principal component analysis (PCA), the unique fingerprints of the sensor array enabled the simultaneous differentiation and quantitative detection of different tau species (tau381, tau410, and tau441) for the first time. Furthermore, the dynamic changes of tau441% (the ratio of the two most reported representative 4R isoform (full-length tau441) and 3R isoform (tau381)) in cerebrospinal fluid (CSF) during the Alzheimer's disease (AD) onset of Cd2+-exposed rats could also be monitored by the lab-on-a-ZnO-submicron-particle sensor array, which was supposed to be an effective hallmark and highly correlated with the formation of neurofibrillary tangles (NFTs). This study not only provides a further insight into the involvement of subchronic Cd2+ exposure in the tau etiology of AD but also offers more comprehensive and effective information about the asymptomatic stage of AD upon environmental risk, which has potential applications in the early diagnosis and therapy.
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Affiliation(s)
- Chang Liu
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, Shanghai 200241, China.,Institute of Eco-Chongming, 3663 Zhongshan Road, Shanghai 200062, China
| | - Yuanting Li
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, Shanghai 200241, China.,Institute of Eco-Chongming, 3663 Zhongshan Road, Shanghai 200062, China
| | - Yuxin Luo
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, Shanghai 200241, China.,Institute of Eco-Chongming, 3663 Zhongshan Road, Shanghai 200062, China
| | - Ying Zhang
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, Shanghai 200241, China.,Institute of Eco-Chongming, 3663 Zhongshan Road, Shanghai 200062, China
| | - Tianshu Zhou
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, Shanghai 200241, China.,Institute of Eco-Chongming, 3663 Zhongshan Road, Shanghai 200062, China
| | - Jingjing Deng
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Process and Eco-Restoration, East China Normal University, Shanghai 200241, China.,Institute of Eco-Chongming, 3663 Zhongshan Road, Shanghai 200062, China
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Li J, Li Y, Wu H, Naraginti S, Wu Y. Facile synthesis of ZnO nanoparticles by Actinidia deliciosa fruit peel extract: Bactericidal, anticancer and detoxification properties. ENVIRONMENTAL RESEARCH 2021; 200:111433. [PMID: 34090889 DOI: 10.1016/j.envres.2021.111433] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/18/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
Synthesis of nanoparticles by eco-friendly method pulled an extensive concern worldwide due its biocompatibility and wide range of applications as catalysts, microbicidal agents, cancer treatment, sensors etc. Though different chemical methods available for preparation of ZnO nanoparticles, synthesis by utilizing plant material is an excellent substitute and green method as well. The present study describes preparation of ZnO nanoparticles by low-cost green synthetic way using Actinidia deliciosa (kiwi) fruit peel extract and its excellent biological and catalytic properties. The synthesized nanoparticles were well characterized by UV visible spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM) and Energy-dispersive X-ray spectroscopy (EDAX). The bactericidal activity of the ZnO nanoparticles was determined by using Staphylococcus aureus (S. aureus), while mechanism of cell death was studied by SEM images. Superior anticancer activity was also observed in inhibiting the colon cancer cells (HCT116) by the ZnO nanoparticles. In addition, ZnO nanoparticles showed efficient photocatalytic activity towards degradation of p-bromophenol, about 96.3% within 120 min. Furthermore, phytotoxicity of the intermediate products was analyzed using Vigna radiata (V. radiata) as a model plant. About 8.0% of germination index (GI) was observed in pure p-BP while it increased to 82.3%, and exhibited that the detoxification of p-BP was attained after 120 min of degradation. Thus, the present study demonstrates ZnO nanoparticles prepared from simple, rapid, inexpensive, eco-friendly and efficient green method gives alternative root for biomedicine and wastewater treatment technologies.
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Affiliation(s)
- Jie Li
- Ministry of Education Key Laboratory of Integrated Regulations and Resource Department on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, China
| | - Yi Li
- Ministry of Education Key Laboratory of Integrated Regulations and Resource Department on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, China.
| | - Haisuo Wu
- Jiangsu Academy of Environmental Industry and Technology Corp., Nanjing, 210019, China
| | - Saraschandra Naraginti
- School of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, 241000, China
| | - Yunbo Wu
- Jiangsu Academy of Environmental Industry and Technology Corp., Nanjing, 210019, China
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Peychev B, Vasileva P. Novel starch-mediated synthesis of Au/ZnO nanocrystals and their photocatalytic properties. Heliyon 2021; 7:e07402. [PMID: 34258459 PMCID: PMC8258847 DOI: 10.1016/j.heliyon.2021.e07402] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/22/2021] [Accepted: 06/22/2021] [Indexed: 11/25/2022] Open
Abstract
A novel solution-solid synthesis method for preparation of ZnO and Au/ZnO composite nanocrystals using starch matrix has been developed and optimized. The process is characterized by simplicity, environmental compatibility and good performance. Nanocomposite samples with different gold content have been synthesized and studied with respect to their structure, size and shape of nanocrystals, thermal behavior, surface characteristics and optical properties, as well as their photocatalytic activity. We have found that modification of nanocrystalline ZnO with gold nanocrystals strongly influences the porosity of nanocomposites - less micro- and mesopores are formed, which results in a reduced specific surface area. The synthesized ZnO and Au/ZnO nanocrystals are active photocatalysts for the photocatalytic degradation of methylene blue (MB), as a model pollutant dye, in the UV region. There is a decrease in photocatalytic activity with an increase of the gold content in the nanocomposite photocatalyst. The degree of MB degradation obtained with a pure ZnO sample is comparable to that with the Au/ZnO photocatalyst with the lowest gold content 0.05 at. %. New and interesting result has been obtained relating to maximum specific (intrinsic) photocatalytic activity of 0.05 at. % Au/ZnO nanocrystals.
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Affiliation(s)
- Boyan Peychev
- Faculty of Chemistry and Pharmacy, University of Sofia “St. Kliment Ohridski”, 1 J. Bourchier, Sofia, 1164, Bulgaria
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Penka Vasileva
- Faculty of Chemistry and Pharmacy, University of Sofia “St. Kliment Ohridski”, 1 J. Bourchier, Sofia, 1164, Bulgaria
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Gomathi R, Suhana H, Paradesi D. Characterization Study of Cytotoxicity of Green Synthesized ZnO Nanoparticles Loaded with Anti‐Cancer Doxorubicin Drug. ChemistrySelect 2021. [DOI: 10.1002/slct.202100358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Rajagopal Gomathi
- Department of Chemistry College of Engineering and Technology SRM Institute of Science and Technology, Chengalpattu District 603203 Tamilnadu India
| | - Harindran Suhana
- Department of Chemistry College of Engineering and Technology SRM Institute of Science and Technology, Chengalpattu District 603203 Tamilnadu India
| | - Deivanayagam Paradesi
- Department of Chemistry College of Engineering and Technology SRM Institute of Science and Technology, Chengalpattu District 603203 Tamilnadu India
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Luminescent nanohybrid of ZnO quantum dot and cellulose nanocrystal as anti-counterfeiting ink. Carbohydr Polym 2021; 262:117864. [PMID: 33838790 DOI: 10.1016/j.carbpol.2021.117864] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 01/04/2021] [Accepted: 02/23/2021] [Indexed: 12/18/2022]
Abstract
Luminescent quantum dot (QD) ink is currently a powerful tool for generating hidden information on paper substrates. Herein, we fabricated a nanohybrid ink of bacterial cellulose nanocrystal (BCNC) and UV-responsive ZnO QD via electrostatic self-assembly for improving solvent resistance and message encryption process. Under investigations on the printed areas, the nanohybrid can slightly infiltrate into the paper fibers and form a thin layer on the top of paper substrates, conferring an enhanced print permanence against wetting conditions while maintaining the daylight unobservability and its luminescent stability. The water resistance of the proposed nanohybrid ink enables developing a higher security level that the prints can be submerged in CuCl2 aqueous solutions to quench the luminescent message. The concealed message can eventually be revealed under UV light again after submerging in EDTA solution. Our ZnO QD/BCNC nanohybrid with eco-friendly nature therefore exhibits great potential as security marking ink for counterfeit protection with sustainable uses.
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Green mediated synthesis of lanthanum doped zinc oxide: Study of its structural, optical and latent fingerprint application. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2020.07.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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16
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Bacha AUR, Nabi I, Cheng H, Li K, Ajmal S, Wang T, Zhang L. Photoelectrocatalytic degradation of endocrine-disruptor bisphenol – A with significantly activated peroxymonosulfate by Co-BiVO4 photoanode. CHEMICAL ENGINEERING JOURNAL 2020; 389:124482. [DOI: 10.1016/j.cej.2020.124482] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
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17
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Untracht Z, Ozcan A, Santra S, Kang EH. SDS-PAGE for Monitoring the Dissolution of Zinc Oxide Bactericidal Nanoparticles (Zinkicide) in Aqueous Solutions. ACS OMEGA 2020; 5:1402-1407. [PMID: 32010811 PMCID: PMC6990419 DOI: 10.1021/acsomega.9b02893] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 12/30/2019] [Indexed: 06/10/2023]
Abstract
Zinkicide is a systemic bactericidal formulation containing protein-size fluorescent zinc oxide-based nanoparticles (nano-ZnO). Previous studies have shown that Zinkicide is effective in controlling citrus diseases. Its field performance as an antimicrobial agent has been linked to the bioavailability of zinc ions (Zn2+) at the target site. It is therefore important to monitor Zn2+ release from Zinkicide so that application rates and frequency can be estimated. In this study, we present a simplistic approach designed to monitor Zinkicide nanoparticle dissolution rates in water and acidic buffer solutions using traditional sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). The evolution of nano-ZnO in the polyacrylamide gel scaffolds was studied by exciting the sample with UV light and detecting the fluorescence of nano-ZnO. Fluorescence intensities measured with this assay allowed for quantitative analysis of molecular weight changes of nano-ZnO in citrate buffer, a surrogate of citrus juice. Our results demonstrated that citrate buffer induced the greatest degradation of Zinkicide. Fluorescence intensity fluctuations were observed over time, indicating interactions of citrate with the surface of nano-ZnO. These findings provide a new approach to quantify the dissolution of nanoparticles in simulated environments, even when other analytical methods lack sensitivity because of the small size of the system (≈4 nm).
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Affiliation(s)
- Zachary
T. Untracht
- NanoScience
Technology Center, Department of Chemistry, Burnett School of Biomedical Sciences, Department of Materials
Science and Engineering, and Department of Physics, University of Central Florida, Orlando 32816, Florida, United States
| | - Ali Ozcan
- NanoScience
Technology Center, Department of Chemistry, Burnett School of Biomedical Sciences, Department of Materials
Science and Engineering, and Department of Physics, University of Central Florida, Orlando 32816, Florida, United States
| | - Swadeshmukul Santra
- NanoScience
Technology Center, Department of Chemistry, Burnett School of Biomedical Sciences, Department of Materials
Science and Engineering, and Department of Physics, University of Central Florida, Orlando 32816, Florida, United States
| | - Ellen H. Kang
- NanoScience
Technology Center, Department of Chemistry, Burnett School of Biomedical Sciences, Department of Materials
Science and Engineering, and Department of Physics, University of Central Florida, Orlando 32816, Florida, United States
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Ullah S, Ahmad A, Ri H, Khan AU, Khan UA, Yuan Q. Green synthesis of catalytic Zinc Oxide nano‐flowers and their bacterial infection therapy. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5298] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sadeeq Ullah
- State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology No. 15 East Road of North Third Ring, Chao Yang District Beijing 100029 China
| | - Aftab Ahmad
- State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology No. 15 East Road of North Third Ring, Chao Yang District Beijing 100029 China
| | - HyonIl Ri
- State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology No. 15 East Road of North Third Ring, Chao Yang District Beijing 100029 China
- Department of Chemical ScienceKim Hyong Jik University of Education Pyongyang Democratic people's Republic of Korea
| | - Arif Ullah Khan
- State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology No. 15 East Road of North Third Ring, Chao Yang District Beijing 100029 China
| | - Usman Ali Khan
- State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology No. 15 East Road of North Third Ring, Chao Yang District Beijing 100029 China
| | - Qipeng Yuan
- State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology No. 15 East Road of North Third Ring, Chao Yang District Beijing 100029 China
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Jayaraman J, Pavadai N, Venugopal T, Ramaiyan R. Interfacial charge-transfer in Cu-TiO2-HBDPPIN-Ag film and AIEE-active chemosensor. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.03.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Gupta A, Srivastava R. Mini submersible pump assisted sonochemical reactors: Large-scale synthesis of zinc oxide nanoparticles and nanoleaves for antibacterial and anti-counterfeiting applications. ULTRASONICS SONOCHEMISTRY 2019; 52:414-427. [PMID: 30755387 DOI: 10.1016/j.ultsonch.2018.12.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 11/13/2018] [Accepted: 12/11/2018] [Indexed: 06/09/2023]
Abstract
Low cost, environmentally friendly and industrial-scale approaches for the synthesis of anti-counterfeiting and antibacterial materials are a challenging task. The current research reports novel and inexpensive approaches for the synthesis of zinc oxide nanostructures (ZnO-NSs) using Mini Submersible Pump (MSP) assisted sonochemical reactors. Zinc oxide nanoleaves (ZnO-NLs) were synthesized using MSP assisted sonochemical mixing reactor at gram-scale (4 g). Zinc oxide nanoparticles (ZnO-NPs) were synthesized using MSP assisted sonochemical flow loop reactor at gram-scale (11.5 g). Synthesized ZnO-NSs were characterized by UV-visible spectroscopy, fluorescence spectroscopy, XRD, FTIR, TGA, BET, FEG-SEM, and FEG-TEM. Bare ZnO-NPs and ZnO-NPs coated cotton fabric showed high antibacterial activity against diseases causing Gram-positive bacteria Staphylococcus aureus. Based on the UV fluorescence property of the ZnO-NLs, invisible security ink was developed for anti-counterfeiting applications. The invisible security ink was tested as a rubber stamp and fountain pen inks which were found to be stable on the various kinds of microporous papers. As compared to our previously reported method, disperser assisted sonochemical approach for ZnO-NLs synthesis; the current approach reduces the cost of equipment used from ∼1700 to 4 USD. Both reactors are designed simply (less complicated), based on an environmentally friendly approach, highly scalable, increases the effectiveness of the sonochemical technique and suitable for industrial applications.
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Affiliation(s)
- Anadi Gupta
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Rohit Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India.
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21
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Haja Hameed AS, Louis G, Karthikeyan C, Thajuddin N, Ravi G. Impact of l-Arginine and l-Histidine on the structural, optical and antibacterial properties of Mg doped ZnO nanoparticles tested against extended-spectrum beta-lactamases (ESBLs) producing Escherichia coli. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 211:373-382. [PMID: 30593947 DOI: 10.1016/j.saa.2018.12.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 12/07/2018] [Accepted: 12/11/2018] [Indexed: 06/09/2023]
Abstract
Magnesium doped Zinc oxide nanoparticles (Mg:ZnO NPs) were synthesized by co-precipitation method. The synthesized Mg:ZnO NPs exhibited hexagonal wurtzite structure, which was confirmed by X-ray diffraction results. After structural confirmation of Mg doped ZnO NPs, base amino acids like l-Arginine and l-Histidine were separately incorporated with the Mg: ZnO NPs. l-Arginine added Mg:ZnO (Mg:ZnO:LA) and l-Histidine added Mg:ZnO (Mg:ZnO: LH) NPs retained the same wurtzite hexagonal structure and average crystallite sizes of Mg: ZnO:LA and Mg: ZnO:LH NPs were found to be 25 nm and 20 nm respectively. The sizes of Mg:ZnO:LH and Mg: ZnO: LA NPs decreased as compared to that of the Mg doped ZnO NPs. From the FT-IR spectra, the ZnO stretching frequencies were observed at 516, 517 and 518 cm-1 for Mg:ZnO, Mg:ZnO: LA and Mg: ZnO:LH NPs respectively. From the FESEM images, the morphologies of ZnO:Mg and ZnO:Mg:LA NPs were spherical and the Mg: ZnO: LH NPs formed nano-flakes structure. From the EDAX study, the amount of elements incorporated in the samples was determined. The photoluminescence measurements revealed the existence of zinc vacancies, oxygen vacancies and surface defects of the samples. Antibacterial activity of the amino acid added Mg doped ZnO NPs was studied against extended-spectrum beta-lactamases (ESBLs) producing Escherichia coli (E. coli).The Minimal Inhibitory Concentration (MIC) of the LH added ZnO:Mg NPs was found to be 1000 μg/ml for which the growth of E. coli completely inhibited. l-Histidine added Mg doped ZnO NPs showed the highest antibacterial activity as compared to that of the Mg:ZnO NPs and ZnO:Mg:LA NPs.
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Affiliation(s)
| | - Golda Louis
- PG and Research Department of Physics, Jamal Mohamed College, Tiruchirappalli 620020, Tamil Nadu, India
| | - Chandrasekaran Karthikeyan
- KIRND Institute of Research and Development Pvt Ltd, Materials Science and Toxicology Department, Tiruchirappalli, Tamil Nadu 620 020, India
| | - Nooruddin Thajuddin
- Division of Microbial Biodiversity and Bioenergy, Department of Microbiology, Bharathidasan University, Tiruchirappalli 600 024, Tamil Nadu, India
| | - Ganesan Ravi
- School of Physics, Alagappa University, Karaikudi 630 004, Tamil Nadu, India
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22
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Kumar V, Sachdev D, Pasricha R, Maheshwari PH, Taneja NK. Zinc-Supported Multiwalled Carbon Nanotube Nanocomposite: A Synergism to Micronutrient Release and a Smart Distributor To Promote the Growth of Onion Seeds in Arid Conditions. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36733-36745. [PMID: 30286290 DOI: 10.1021/acsami.8b13464] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
In the current scenario, nanotechnological applications in the agriculture sector showing potential impacts on the improvement of plant growth in terms of protection and safety are at a very nascent stage. The present study deals with the synergistic role of zinc (Zn) and multiwalled carbon nanotubes (MWCNTs) synthesized as a zinc oxide (ZnO)/MWCNT nanocomposite, a prospective applicant to modulate the micronutrient supply and enhance the growth of onion seeds, thereby replacing harmful, unsafe chemical fertilizers. To the best of our knowledge, this is the first report wherein MWCNTs have been envisaged as a micronutrient distributor and a nutrient stabilizer enhancing the growth of onion plant under arid conditions. The growth trend of onion seeds was evaluated in an aqueous medium with varied concentrations of (i) MWCNTs, (ii) zinc oxide nanoparticles, and (iii) ZnO/MWCNT nanocomposites. ZnO/MWCNT nanocomposites with 15 μg/mL concentration displayed the best seedling growth with the maximum number of cells in telophase. A significant growth trend with increased concentration of ZnO/MWCNTs displayed no negative impact on plant growth in contrast to that with the use of MWCNTs. The synergistic impact of Zn nanoparticles and MWCNTs in ZnO/MWCNT nanocomposites on the rate of germination was explained via a mechanism supported by scanning transmission electron microscopy.
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Affiliation(s)
- Vinay Kumar
- National Institute of Food Technology Entrepreneurship and Management , Sonepat 131028 , Haryana , India
| | - Divya Sachdev
- National Institute of Food Technology Entrepreneurship and Management , Sonepat 131028 , Haryana , India
| | - Renu Pasricha
- New York University Abu Dhabi , Abu Dhabi 129188 , United Arab Emirates
| | | | - Neetu Kumra Taneja
- National Institute of Food Technology Entrepreneurship and Management , Sonepat 131028 , Haryana , India
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23
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Nayak S, Parida KM. Dynamics of Charge-Transfer Behavior in a Plasmon-Induced Quasi-Type-II p-n/n-n Dual Heterojunction in Ag@Ag 3PO 4/g-C 3N 4/NiFe LDH Nanocomposites for Photocatalytic Cr(VI) Reduction and Phenol Oxidation. ACS OMEGA 2018; 3:7324-7343. [PMID: 31458892 PMCID: PMC6644866 DOI: 10.1021/acsomega.8b00847] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 06/08/2018] [Indexed: 05/18/2023]
Abstract
In this work, a series of heterostructure Ag@Ag3PO4/g-C3N4/NiFe layered double hydroxide (LDH) nanocomposites were prepared by a combination of an electrostatic self-assembly and in situ photoreduction method. In this method, positively charged p-type Ag3PO4 was electrostatically bonded to the self-assembled negatively charged surface of the n-n-type g-C3N4/NiFe (CNLDH) LDH hybrid material with partial reduction of Ag+ to metallic Ag nanoparticles (NPs) by the photogenerated electrons and available surface -OH groups of LDH under visible light irradiation. The presence of Ag3PO4 as a p-type semiconductor, the surface plasmon resonance (SPR) effect of metallic Ag NPs, and oxygen vacancies as Ov-type defects in NiFe LDH could greatly achieve the quasi-type-II p-n/n-n dual heterojunctions, which was revealed by the shifted conduction band and valence band potentials in Mott-Schottky (M-S) analysis. Among all the optimized heterostructures, CNLDHAgP4 could achieve the highest photocatalytic Cr(VI) reduction rate of 97% and phenol oxidation rate of 90% in 2 h. The heterostructure CNLDHAgP4 photocatalyst possesses a unique morphology consisting of cubic phases of both Ag NPs and Ag3PO4, which adhered to the thin and curvy layers of the CNLDH hybrid for smooth electronic and ionic charge transport. Furthermore, the intimate Schottky barriers formed at the interface of quasi-type-II p-n/n-n dual heterojunctions were verified by the photoluminescence, linear sweep voltammetry, M-S, electrochemical impedance study, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy studies. The SPR effect of Ag NPs and oxygen vacancies as Ov-type defect in NiFe LDH can effectively accelerate the threshold of charge separation and be the main reason for the enhanced activity achieved by the as-fabricated heterostructure photocatalyst.
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Affiliation(s)
| | - K. M. Parida
- E-mail: , . Phone: +91-674-2351777. Fax: +91-674-2350642
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24
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Abstract
Abstract
Nanoparticles (NPs) proved to have numerous applications in various fields, including biomedicine and environmental sciences. In this work, we designed and created an apparatus for fabrication of metal NPs directly in liquids initiated by femtosecond laser pulses. The laser parameters leading to ~10 μJ/pulse energy and 0.1 GW peak power resulted in predominantly spherical particles with the sizes varying from <10 nm to ~100 nm in diameter. NPs generated from Cobalt and Zinc targets were smaller in order of magnitude compared to that of Nickel. The fabricated NPs were characterized by scanning electron microscopy, while spectroscopic properties were investigated by absorption spectroscopy and spectrally resolved fluorescence imaging. We also tested the possible interaction of the created NPs with living algae for their potential use for environmental research. Employing such ultrashort laser opens route to provide on-demand production of NP's in-situ at even factory environment.
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25
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Tangcharoen T, Klysubun W, Kongmark C. Synthesis of nanocrystalline NiO/ZnO heterostructured composite powders by sol-gel auto combustion method and their characterizations. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.12.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Sawant V, Bamane S. PEG-beta-cyclodextrin functionalized zinc oxide nanoparticles show cell imaging with high drug payload and sustained pH responsive delivery of curcumin in to MCF-7 cells. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.11.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Kahouli M, Tounsi N, Mzabi N, Guermazi H, Guermazi S. Enhanced structural and optical properties of ZnO nanopowder with tailored visible luminescence as a function of sodium hydroxide to zinc sulfate mass ratio. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2017.11.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Ferreira DL, Sousa JCL, Maronesi RN, Bettini J, Schiavon MA, Teixeira AVNC, Silva AG. Size-dependent bandgap and particle size distribution of colloidal semiconductor nanocrystals. J Chem Phys 2017; 147:154102. [DOI: 10.1063/1.4999093] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D. L. Ferreira
- Departamento de Física, CCE, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil
| | - J. C. L. Sousa
- Departamento de Ciências Naturais, Universidade Federal de São João Del Rei, Campus Dom Bosco, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - R. N. Maronesi
- Departamento de Física, CCE, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil
| | - J. Bettini
- Laboratório Nacional de Nanotecnologia, Centro Nacional de Pesquisa em Energia e Materiais, 13083-970 Campinas, São Paulo, Brazil
| | - M. A. Schiavon
- Departamento de Ciências Naturais, Universidade Federal de São João Del Rei, Campus Dom Bosco, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - A. V. N. C. Teixeira
- Departamento de Física, CCE, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil
| | - A. G. Silva
- Departamento de Física, CCE, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil
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29
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Structural, optical and photocatalytic study of ZnO and ZnO–ZnS synthesized by chemical method. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.nanoso.2017.08.007] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Renuga V, Manikandan A, Neela Mohan C, Meenatchi B, Ganga B. Imidazolium based ionic liquids' structure and optical properties influenced by semiconductor metal oxide thin films. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.06.132] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Susanna A, D'Arienzo M, Di Credico B, Giannini L, Hanel T, Grandori R, Morazzoni F, Mostoni S, Santambrogio C, Scotti R. Catalytic effect of ZnO anchored silica nanoparticles on rubber vulcanization and cross-link formation. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.05.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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32
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Facile green synthesis of zinc oxide nanoparticles by Eucalyptus globulus and their photocatalytic and antioxidant activity. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2016.11.026] [Citation(s) in RCA: 138] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Das S, Pramanik S, Chatterjee S, Das PP, Devi PS, Suresh Kumar G. Selective Binding of Genomic Escherichia coli DNA with ZnO Leads to White Light Emission: A New Aspect of Nano-Bio Interaction and Interface. ACS APPLIED MATERIALS & INTERFACES 2017; 9:644-657. [PMID: 28029245 DOI: 10.1021/acsami.6b11109] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Here, we report for the first time, a novel and intriguing application of deoxyribonucleic acid (DNA) in the area of optics by demonstrating white light emission by tuning the emission of a nanomaterial, ZnO rods, exhibiting surface defects, in the presence of genomic Escherichia coli DNA with a comparatively high quantum efficiency. In order to understand the DNA specificity, we have also studied the interaction of ZnO with CT, and ML DNA, ss EC DNA, synthetic polynucleotides and different mononucleosides and bases. Further, in order to understand the effect of particle shape and defects present in ZnO, we have also extended our study with ZnO rods prepared at higher temperature exhibiting red emission and ZnO particles exhibiting yellow emission. Interestingly, none of the above studies resulted in white light emission from ZnO-DNA complex. Our studies unequivocally confirmed that the concentration and the nature of DNA and ZnO together plays a crucial role in obtaining CIE coordinates (0.33, 0.33) close to white light. The much enhanced melting temperature (Tm) of EC DNA and the energetics factors confirm enhanced hydrogen bonding of ZnO with EC DNA leading to a new emission band. Our experimental observations not only confirm the selective binding of ZnO to EC DNA but also open a new perspective for developing energy saving light emitting materials through nano-bio interactions.
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Affiliation(s)
- Sumita Das
- Sensor and Actuator Division, CSIR-Central Glass and Ceramic Research Institute , Kolkata-700032, India
| | - Srikrishna Pramanik
- Sensor and Actuator Division, CSIR-Central Glass and Ceramic Research Institute , Kolkata-700032, India
| | - Sabyasachi Chatterjee
- Biophysical Chemistry Laboratory, Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology , Kolkata-700032, India
| | - Partha Pratim Das
- Sensor and Actuator Division, CSIR-Central Glass and Ceramic Research Institute , Kolkata-700032, India
| | | | - Gopinatha Suresh Kumar
- Biophysical Chemistry Laboratory, Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology , Kolkata-700032, India
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34
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Wang L, Zhai H, Jin G, Li X, Dong C, Zhang H, Yang B, Xie H, Sun H. 3D porous ZnO–SnS p–n heterojunction for visible light driven photocatalysis. Phys Chem Chem Phys 2017; 19:16576-16585. [DOI: 10.1039/c7cp01687e] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
3D porous ZnO–SnS is prepared as a highly efficient, low cost, and low toxicity visible light driven photocatalyst.
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Affiliation(s)
- Lijing Wang
- College of Chemistry
- National & Local United Engineering Laboratory for Power Batteries
- Northeast Normal University
- Changchun 130024
- People's Republic of China
| | - Hongju Zhai
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials
- Jilin Normal University
- Ministry of Education
- Changchun 130103
- People's Republic of China
| | - Gan Jin
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Xiaoying Li
- College of Chemistry
- National & Local United Engineering Laboratory for Power Batteries
- Northeast Normal University
- Changchun 130024
- People's Republic of China
| | - Chunwei Dong
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Hao Zhang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Haiming Xie
- College of Chemistry
- National & Local United Engineering Laboratory for Power Batteries
- Northeast Normal University
- Changchun 130024
- People's Republic of China
| | - Haizhu Sun
- College of Chemistry
- National & Local United Engineering Laboratory for Power Batteries
- Northeast Normal University
- Changchun 130024
- People's Republic of China
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35
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Kang H, Kim G, Kim J, Kwon S, Kim H, Lee K. Bulk-Heterojunction Organic Solar Cells: Five Core Technologies for Their Commercialization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:7821-7861. [PMID: 27345936 DOI: 10.1002/adma.201601197] [Citation(s) in RCA: 144] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 04/21/2016] [Indexed: 05/19/2023]
Abstract
The past two decades of vigorous interdisciplinary approaches has seen tremendous breakthroughs in both scientific and technological developments of bulk-heterojunction organic solar cells (OSCs) based on nanocomposites of π-conjugated organic semiconductors. Because of their unique functionalities, the OSC field is expected to enable innovative photovoltaic applications that can be difficult to achieve using traditional inorganic solar cells: OSCs are printable, portable, wearable, disposable, biocompatible, and attachable to curved surfaces. The ultimate objective of this field is to develop cost-effective, stable, and high-performance photovoltaic modules fabricated on large-area flexible plastic substrates via high-volume/throughput roll-to-roll printing processing and thus achieve the practical implementation of OSCs. Recently, intensive research efforts into the development of organic materials, processing techniques, interface engineering, and device architectures have led to a remarkable improvement in power conversion efficiencies, exceeding 11%, which has finally brought OSCs close to commercialization. Current research interests are expanding from academic to industrial viewpoints to improve device stability and compatibility with large-scale printing processes, which must be addressed to realize viable applications. Here, both academic and industrial issues are reviewed by highlighting historically monumental research results and recent state-of-the-art progress in OSCs. Moreover, perspectives on five core technologies that affect the realization of the practical use of OSCs are presented, including device efficiency, device stability, flexible and transparent electrodes, module designs, and printing techniques.
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Affiliation(s)
- Hongkyu Kang
- School of Materials Science and Engineering, Research Institute for Solar and Sustainable Energies, GIST-ICL International Collaboration R&D Centre, Heeger Center for Advanced Materials, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Geunjin Kim
- School of Materials Science and Engineering, Research Institute for Solar and Sustainable Energies, GIST-ICL International Collaboration R&D Centre, Heeger Center for Advanced Materials, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Junghwan Kim
- School of Materials Science and Engineering, Research Institute for Solar and Sustainable Energies, GIST-ICL International Collaboration R&D Centre, Heeger Center for Advanced Materials, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Sooncheol Kwon
- School of Materials Science and Engineering, Research Institute for Solar and Sustainable Energies, GIST-ICL International Collaboration R&D Centre, Heeger Center for Advanced Materials, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Heejoo Kim
- School of Materials Science and Engineering, Research Institute for Solar and Sustainable Energies, GIST-ICL International Collaboration R&D Centre, Heeger Center for Advanced Materials, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
| | - Kwanghee Lee
- School of Materials Science and Engineering, Research Institute for Solar and Sustainable Energies, GIST-ICL International Collaboration R&D Centre, Heeger Center for Advanced Materials, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
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36
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Żelechowska K, Karczewska-Golec J, Karczewski J, Łoś M, Kłonkowski AM, Węgrzyn G, Golec P. Phage-Directed Synthesis of Photoluminescent Zinc Oxide Nanoparticles under Benign Conditions. Bioconjug Chem 2016; 27:1999-2006. [DOI: 10.1021/acs.bioconjchem.6b00196] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kamila Żelechowska
- Solid
State Physics Department, Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Joanna Karczewska-Golec
- Department
of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland
| | - Jakub Karczewski
- Solid
State Physics Department, Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Marcin Łoś
- Department
of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland
| | | | - Grzegorz Węgrzyn
- Department
of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland
| | - Piotr Golec
- Laboratory
of Molecular Biology (affiliated with the University of Gdansk), Institute
of Biochemistry and Biophysics, Polish Academy of Sciences, Wita Stwosza
59, 80-308 Gdansk, Poland
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37
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Jayabharathi J, Prabhakaran A, Thanikachalam V, Jeeva P, Sundharesan M. Air Stable HyLEDs Using Efficient Electron Injection and Emitting Materials. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b01151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Annadurai Prabhakaran
- Department
of Chemistry, Annamalai University, Annamalainagar 608 002, Tamilnadu, India
| | | | - Palanivel Jeeva
- Department
of Chemistry, Annamalai University, Annamalainagar 608 002, Tamilnadu, India
| | - Munusamy Sundharesan
- Department
of Chemistry, Annamalai University, Annamalainagar 608 002, Tamilnadu, India
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38
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Paczesny J, Wolska-Pietkiewicz M, Binkiewicz I, Wadowska M, Wróbel Z, Matuła K, Nogala W, Lewiński J, Hołyst R. Photoactive Langmuir-Blodgett, Freely Suspended and Free Standing Films of Carboxylate Ligand-Coated ZnO Nanocrystals. ACS APPLIED MATERIALS & INTERFACES 2016; 8:13532-13541. [PMID: 27158733 DOI: 10.1021/acsami.6b03579] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A new possibility for the formation of macroscopic and photoactive structures from zinc oxide nanocrystals is described. Photoactive freely suspended and free-standing films of macroscopic area (up to few square millimeters) and submicrometer thickness (up to several hundreds of nanometers) composed of carboxylate ligand-coated zinc oxide nanocrystallites (RCO2-ZnO NCs) of diameter less than 5 nm are prepared according to a modified Langmuir-Schaefer method. First, the suspension of RCO2-ZnO NCs is applied onto the air/water interface. Upon compression, the films become turbid and elastic. The integrity of such structures is ensured by interdigitation of ligands stabilizing ZnO NCs. Great elasticity allows transfer of the films onto a metal frame as a freely suspended film. Such membranes are afterward extracted from the supporting frame to form free-standing films of macroscopic area. Because the integrity of the films is maintained by ligands, no abolishment of quantum confinement occurs, and films retain spectroscopic properties of initial RCO2-ZnO NCs. The mechanism of formation of thin films of RCO2-ZnO NCs at the air/water interface is discussed in detail.
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Affiliation(s)
- Jan Paczesny
- Institute of Physical Chemistry PAS , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | | | - Ilona Binkiewicz
- Institute of Physical Chemistry PAS , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Monika Wadowska
- Institute of Physical Chemistry PAS , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Zbigniew Wróbel
- Institute of Physical Chemistry PAS , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Kinga Matuła
- Institute of Physical Chemistry PAS , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Wojciech Nogala
- Institute of Physical Chemistry PAS , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Janusz Lewiński
- Institute of Physical Chemistry PAS , Kasprzaka 44/52, 01-224 Warsaw, Poland
- Faculty of Chemistry, Warsaw University of Technology , Noakowskiego 3, 00-664 Warsaw, Poland
| | - Robert Hołyst
- Institute of Physical Chemistry PAS , Kasprzaka 44/52, 01-224 Warsaw, Poland
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39
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Sharma SK, Blanton T, Weston J, Khapli S, Jagannathan R. Sharp blue emission of ZnO crystals by supercritical CO2 processing. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2015.12.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Ullah R, Zhang Z, Bai P, Wu P, Han D, Etim UJ, Yan Z. One-Pot Cation–Anion Double Hydrolysis Derived Ni/ZnO–Al2O3 Absorbent for Reactive Adsorption Desulfurization. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04421] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rooh Ullah
- State
Key Laboratory of Heavy Oil Processing, PetroChina Key Laboratory
of Catalysis, China University of Petroleum, Qingdao, 266555, China
| | - Zhanquan Zhang
- Petrochina Petrochemical Research Institute, Beijing 102206, China
| | - Peng Bai
- State
Key Laboratory of Heavy Oil Processing, PetroChina Key Laboratory
of Catalysis, China University of Petroleum, Qingdao, 266555, China
| | - Pingping Wu
- State
Key Laboratory of Heavy Oil Processing, PetroChina Key Laboratory
of Catalysis, China University of Petroleum, Qingdao, 266555, China
| | - Dezhi Han
- Key
Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess
Technology, Chinese Academy of Science, Qingdao 266101, China
| | - U. J. Etim
- State
Key Laboratory of Heavy Oil Processing, PetroChina Key Laboratory
of Catalysis, China University of Petroleum, Qingdao, 266555, China
| | - Zifeng Yan
- State
Key Laboratory of Heavy Oil Processing, PetroChina Key Laboratory
of Catalysis, China University of Petroleum, Qingdao, 266555, China
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41
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Yadav LSR, Kumar D, Kavitha C, Rajanaika H, Prasad BD, Nagabhushana H, Nagaraju G. Antibacterial and Photocatalytic Activities of ZnO Nanoparticles: Synthesized Using Water Melon Juice as Fuel. INTERNATIONAL JOURNAL OF NANOSCIENCE 2016. [DOI: 10.1142/s0219581x1650006x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In the present work, Zinc Oxide nanoparticles (ZnO Nps) have been prepared by a simple and low temperature solution combustion method using Zinc nitrate as a precursor and solid water melon juice as a novel fuel for the first time. The structure and morphology of the synthesized ZnO NPs have been analyzed using various analytical techniques such as Powder X-ray diffraction, FTIR spectroscopy, Raman spectroscopy, UV-Visible spectroscopy, photoluminescence spectroscopy, scanning electron microscope and transmission electron microscope. ZnO NPs show good photo catalytic activity for the degradation of methylene blue (MB) dye. It also shows significant antibacterial activities against three bacterial strains.
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Affiliation(s)
- L. S. Reddy Yadav
- Department of Chemistry, BMS Institute of Technology, Bangalore 560064, India
- Department of Chemistry, Siddaganga Institute of Technology, Tumkur 572103, India
| | - Danith Kumar
- CNR Rao Center for Advanced Materials, Tumkur University, Tumkur 572103, India
| | - C. Kavitha
- Department of Chemistry, BMS Institute of Technology, Bangalore 560064, India
| | - H. Rajanaika
- Department of Physics, BMS Institute of Technology, Bangalore 560064, India
| | - B. Daruka Prasad
- Department of Physics, BMS Institute of Technology, Bangalore 560064, India
| | - H. Nagabhushana
- CNR Rao Center for Advanced Materials, Tumkur University, Tumkur 572103, India
| | - G. Nagaraju
- Department of Chemistry, Siddaganga Institute of Technology, Tumkur 572103, India
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42
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Takai-Yamashita C, Ishino T, Fuji M, Inoue K. Preparation and formation mechanism of ZnO supported hollow SiO2 nanoparticle by an interfacial reaction through micropores. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.12.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Han C, Cheng Y, Chen L, Qian L, Yang Z, Xue W, Zhang T, Yang Y, Cao W. Enhanced Performance of Inverted Polymer Solar Cells by Combining ZnO Nanoparticles and Poly[(9,9-bis(3'-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctyfluorene)] as Electron Transport Layer. ACS APPLIED MATERIALS & INTERFACES 2016; 8:3301-3307. [PMID: 26754052 DOI: 10.1021/acsami.5b11140] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A highly efficient inverted polymer solar cell (PSC) has been successfully demonstrated by using a ZnO nanoparticle (NP) and poly[(9,9-bis(3'-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctyfluorene)] (PFN) bilayer structure as an effective electron collecting layer. This ZnO/PFN bilayer structure is designed to combine the advantages of both ZnO and PFN, based on the performance comparison of ZnO-only, PFN-only, and ZnO/PFN bilayer devices in our work. ZnO NPs can serve as an efficient electron transport and buffer layer for reduced series resistance, while the PFN interlayer can improve the energy level alignment of devices through the formation of an interfacial dipole. With the enhanced electron extraction induced by the ZnO/PFN bilayer structure and PTB7:ICBA:PC71BM ternary system, the corresponding inverted PSC device shows a high PCE of 9.3%, which is more than a 15% improvement compared to the ZnO- or PFN-only devices.
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Affiliation(s)
- Changfeng Han
- Key Laboratory for Special Functional Materials of Ministry of Education, Henan University , Kaifeng, Henan 475004, P. R. China
| | - Yuanyuan Cheng
- Key Laboratory for Special Functional Materials of Ministry of Education, Henan University , Kaifeng, Henan 475004, P. R. China
| | - Ling Chen
- Key Laboratory for Special Functional Materials of Ministry of Education, Henan University , Kaifeng, Henan 475004, P. R. China
| | - Lei Qian
- Key Laboratory for Special Functional Materials of Ministry of Education, Henan University , Kaifeng, Henan 475004, P. R. China
| | - Ziyan Yang
- School of Optoelectronics, Beijing Institute of Technology , Beijing 100081, P.R. China
| | - Wei Xue
- School of Optoelectronics, Beijing Institute of Technology , Beijing 100081, P.R. China
| | - Ting Zhang
- School of Optoelectronics, Beijing Institute of Technology , Beijing 100081, P.R. China
| | - Yixing Yang
- NanoPhotonica, Inc ., Gainesville, Florida 32601, United States
| | - Weiran Cao
- NanoPhotonica, Inc ., Gainesville, Florida 32601, United States
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44
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Neaime C, Amela-Cortes M, Grasset F, Zakhour M, Molard Y. Preparation of colloidal solution of silica encapsulating cyanobiphenyl unit-capped ZnO QD emitting in the blue region. Dalton Trans 2016; 45:886-90. [PMID: 26658406 DOI: 10.1039/c5dt03851k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The encapsulation of ZnO nanoparticles (5 nm) coated by cyanobiphenyl units by the sol-gel technique leads to spherical ZnO@SiO2 nanoparticles displaying blue emission under UV excitation.
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Affiliation(s)
- C Neaime
- Institut des Sciences Chimiques de Rennes, UMR 6226 UR1-CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France.
| | - M Amela-Cortes
- Institut des Sciences Chimiques de Rennes, UMR 6226 UR1-CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France.
| | - F Grasset
- Institut des Sciences Chimiques de Rennes, UMR 6226 UR1-CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France. and CNRS, UMI 3629, Laboratory for Innovative Key Materials and Structures-LINK, National Institute of Material Science, 1-1 Namiki, 305-0044, Tsukuba, Japan
| | - M Zakhour
- Lebanese University-Faculty of Science II, Chemistry Department, Laboratory of Physical Chemistry of Materials (LCPM PR2N), 90656 Fanar, Beirut, Lebanon
| | - Y Molard
- Institut des Sciences Chimiques de Rennes, UMR 6226 UR1-CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France.
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45
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Borade P, Joshi KU, Gokarna A, Lerondel G, Jejurikar SM. The transformation of ZnO submicron dumbbells into perfect hexagonal tubular structures using CBD: a post treatment route. NANOTECHNOLOGY 2016; 27:025602. [PMID: 26618846 DOI: 10.1088/0957-4484/27/2/025602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this paper, we report the synthesis of dumbbell-shaped ZnO structures and their subsequent transformation into perfect hexagonal tubes by the extended chemical bath deposition (CBD) method, retaining all advantages such as reproducibility, simplicity, quickness and economical aspect. Well-dispersed sub-micron-sized dumbbell-shaped ZnO structures were synthesized on a SiO2/Si substrate by the CBD method. As an extension of the CBD process the synthesized ZnO dumbbells were exposed to the evaporate coming out of the chemical bath for a few minutes (simply by adjusting the height of the deposit so that it remained just above the solution) to convert them into hexagonal tubes via the dissolution process. The possible dissolution mechanism responsible for the observed conversion is discussed. The optical properties (photo-luminescence) recorded at low temperature on both the structures showed an intense, sharp excitonic peak located at ∼370 nm. The improved intensity and low FWHM of the UV peak observed in the hexagonal tubular structures assures high optical quality, and hence can be used for optoelectronic applications.
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Affiliation(s)
- P Borade
- National Centre for Nanoscience and Nanotechnology, University of Mumbai, Kalina Campus, Santacruz (E), Mumbai- 400098, India
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46
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Madan HR, Sharma SC, Suresh D, Vidya YS, Nagabhushana H, Rajanaik H, Anantharaju KS, Prashantha SC, Sadananda Maiya P. Facile green fabrication of nanostructure ZnO plates, bullets, flower, prismatic tip, closed pine cone: Their antibacterial, antioxidant, photoluminescent and photocatalytic properties. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 152:404-16. [PMID: 26241826 DOI: 10.1016/j.saa.2015.07.067] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 07/12/2015] [Accepted: 07/13/2015] [Indexed: 05/27/2023]
Abstract
Green synthesis of multifunctional Zinc oxide nanoparticles (NPs) with a variety of morphologies were achieved by low temperature solution combustion route employing neem (Azadirachta indica) extract as fuel. The nanoparticles were characterized by PXRD, FTIR, XPS, Raman and UV-Visible spectroscopic studies. The Morphologies were studied by SEM and TEM analysis. The NPs were subjected for photoluminescence, photocatalytic, antibacterial and antioxidant activity studies. PXRD pattern confirmed the hexagonal wurtzite structure of the product. SEM images indicated the transformation of mushroom like hexagonal disks to bullets, buds, cones, bundles and closed pine cone structured NPs with increase in the concentration of neem extract in reaction mixture. The NPs exhibited prominent green emission due to the presence of intrinsic defect centers. The as-formed bullet shaped ZnO with 4ml of neem extract was found to decolorize Methylene blue (MB) under Sunlight and UV light irradiation. The antibacterial studies indicated that ZnO NPs of concentration 500, 750 and 1000μg resulted in significant antibacterial activity on Klebsiella aerogenes and Staphylococcus aureus but not against Escherichia coli and Pseudomonas aeruginosa in agar well diffusion method. Further, ZnO NPs exhibited significant antioxidant activity against scavenging DPPH free radicals. The current investigation demonstrated green engineering method for the synthesis of multifunctional ZnO NPs with interesting morphologies using neem extract.
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Affiliation(s)
- H R Madan
- Department of Electronics, Tumkur University, Tumkur 572 103, India
| | - S C Sharma
- Dayananda Sagar University, Shavige Malleshwara Hills, Kumaraswamy layout, Bangalore 560078, Karnataka, India
| | - D Suresh
- Department of Studies & Research in Chemistry, Tumkur University, Tumkur 572 103, India
| | - Y S Vidya
- Department of Physics, Lal Bahadur Shastry Government First Grade College, Bangalore 560 032, India.
| | - H Nagabhushana
- Prof. C.N.R. Rao Centre for Advanced Materials Research, Tumkur University, Tumkur 572 103, India.
| | - H Rajanaik
- Department of Studies and Research in Environmental Science, Tumkur University, Tumkur 572 103, India
| | - K S Anantharaju
- Department of Chemistry, Dayananda Sagar College of Engineering, Shavige Malleshwara Hills, Kumaraswamy layout, Bangalore 560078, Karnataka, India.
| | - S C Prashantha
- Department of Science, East West Institute of Technology, Bangalore 560 091, India
| | - P Sadananda Maiya
- Dr. P. Sadananda Maiya Center for Food Science Research, 4th Block, Jayanagara, Bangalore 560 011, India
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47
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Das S, Meena SS, Pramanik A. Zinc oxide functionalized human hair: A potential water decontaminating agent. J Colloid Interface Sci 2016; 462:307-14. [DOI: 10.1016/j.jcis.2015.10.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/01/2015] [Accepted: 10/08/2015] [Indexed: 11/24/2022]
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48
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Maiti D, Saha A, Devi PS. Surface modified multifunctional ZnFe2O4 nanoparticles for hydrophobic and hydrophilic anti-cancer drug molecule loading. Phys Chem Chem Phys 2016; 18:1439-50. [DOI: 10.1039/c5cp05840f] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
By appropriate surface functionalization, multifunctional ZnFe2O4 nanoparticles exhibiting RT ferromagnetism and green emission has been loaded with a hydrophobic drug molecule-curcumin and a hydrophilic drug molecule-daunorubicin.
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Affiliation(s)
- Debabrata Maiti
- Nano-Structured Materials Division
- CSIR-Central Glass and Ceramic Research Institute
- Kolkata 700032
- India
| | - Arindam Saha
- Nano-Structured Materials Division
- CSIR-Central Glass and Ceramic Research Institute
- Kolkata 700032
- India
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49
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Layek A, Banerjee S, Manna B, Chowdhury A. Synthesis of rare-earth doped ZnO nanorods and their defect–dopant correlated enhanced visible-orange luminescence. RSC Adv 2016. [DOI: 10.1039/c6ra02278b] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Rare-earth doped sub-10 nm diameter ZnO nanorods show defect–dopant assisted enhanced visible-orange luminescence and also display multicolour rare-earth emission.
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Affiliation(s)
- A. Layek
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - S. Banerjee
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - B. Manna
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - A. Chowdhury
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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50
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Grim JQ, Manna L, Moreels I. A sustainable future for photonic colloidal nanocrystals. Chem Soc Rev 2015; 44:5897-914. [PMID: 26084788 DOI: 10.1039/c5cs00285k] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Colloidal nanocrystals - produced in a growing variety of shapes, sizes and compositions - are rapidly developing into a new generation of photonic materials, spanning light emitting as well as energy harvesting applications. Precise tailoring of their optoelectronic properties enables them to satisfy disparate application-specific requirements. However, the presence of toxic heavy metals such as cadmium and lead in some of the most mature nanocrystals is a serious drawback which may ultimately preclude their use in consumer applications. Although the pursuit of non-toxic alternatives has occurred in parallel to the well-developed Cd- and Pb-based nanocrystals, synthetic challenges have, until recently, curbed progress. In this review, we highlight recent advances in the development of heavy-metal-free nanocrystals within the context of specific photonic applications. We also describe strategies to transfer some of the advantageous nanocrystal features such as shape control to non-toxic materials. Finally, we present recent developments that have the potential to make substantial impacts on the quest to attain a balance between performance and sustainability in photonics.
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Affiliation(s)
- Joel Q Grim
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, IT-16163 Genova, Italy.
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