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Sun R, Jin B, Yao L, Liu Y, Li J, Liang J, He J. Controllable Design of Bifunctional VO 2 Coatings with Superhydrophobic and Thermochromic Performances. ACS APPLIED MATERIALS & INTERFACES 2021; 13:13751-13759. [PMID: 33691069 DOI: 10.1021/acsami.0c21491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The structure and functions of natural organisms provide great inspirational sources for designing and manufacturing bionic coatings, which hold a distinguished scientific promise to tackle challenges facing humans. In this work, we report a facile and controllable approach to prepare various hexagonal periodic array VO2 thin films by simply manipulating the speed of the dip-coating operation. The hexagonal cellular-structured VO2 surface delivered the best thermochromic performance with a Tlum of 79.34% and a ΔTsol of 9.87%. Impressively, superhydrophobic and thermochromic properties could be integrated into hexagonal semi-dome thin films (with a Tlum of 70.9%, a ΔTsol of 9.3%, and a water contact angle of 150°) without any post-treatment by low-surface-energy chemicals, which hold considerable potential for application in multifunctional smart windows. Moreover, based on the Cassie-Baxter mode and finite-difference time-domain calculations, the dependence of the thermochromic and wettability performances on the VO2 structure has been investigated in this study.
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Affiliation(s)
- Rui Sun
- Functional Nanomaterials Laboratory, Center for Micro/Nanomaterials and Technology, and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical and Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China
| | - Binbin Jin
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Westlake University, Hangzhou 310024, China
| | - Lin Yao
- Functional Nanomaterials Laboratory, Center for Micro/Nanomaterials and Technology, and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yiman Liu
- Functional Nanomaterials Laboratory, Center for Micro/Nanomaterials and Technology, and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical and Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China
| | - Jing Li
- Functional Nanomaterials Laboratory, Center for Micro/Nanomaterials and Technology, and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jie Liang
- School of Chemical and Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China
| | - Junhui He
- Functional Nanomaterials Laboratory, Center for Micro/Nanomaterials and Technology, and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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High molecular weight block copolymer lithography for nanofabrication of hard mask and photonic nanostructures. J Colloid Interface Sci 2019; 534:420-429. [DOI: 10.1016/j.jcis.2018.09.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/07/2018] [Accepted: 09/12/2018] [Indexed: 11/22/2022]
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Shobana C, Rangasamy B, Poopal RK, Renuka S, Ramesh M. Green synthesis of silver nanoparticles using Piper nigrum: tissue-specific bioaccumulation, histopathology, and oxidative stress responses in Indian major carp Labeo rohita. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:11812-11832. [PMID: 29446018 DOI: 10.1007/s11356-018-1454-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 01/31/2018] [Indexed: 06/08/2023]
Abstract
The aim of the present investigation is to assess the sublethal toxicity of biologically synthesized silver nanoparticles (Ag NPs) in Indian major carp Labeo rohita. Ag NPs used in the study were synthesized by using AgNO3 with aqueous leaf extract of Piper nigrum. Median lethal concentration (LC50) of synthesized Ag NPs was determined for 96 h (25 μg/L); 2.5 μg/L (1/10th LC50) and 5 μg/L (1/5th LC50) were taken as sublethal concentrations to evaluate the toxicity for 35 days. The results of the TEM, SEM, and EDX analyses revealed that Ag NPs were considerably accumulated in the gill, liver, and kidney of fish at both concentrations (2.5 and 5 μg/L). Consequently, the activity of the antioxidant enzymes, SOD and CAT, was significantly (P < 0.05) decreased in the gill, liver, and kidney when compared to the control group during the study period. However, lipid peroxidase (LPO) activity in the gill, liver, and kidney was significantly (P < 0.05) increased, and the result concluded a possible sign of free radical-induced oxidative stress in Ag NP-exposed fish than the sham-exposed individuals. The histopathological study also confirmed the alterations such as degeneration of lamella, lifting of lamellar epithelium, hepatic necrosis, pyknotic nuclei, increased intracellular space, and shrinkage of glomerulus elicited by Ag NPs in the gill, liver, and kidney of Labeo rohita with two different concentrations. The findings of the present study revealed that green synthesis of Ag NPs from Piper nigrum at sublethal concentrations leads to accumulation of Ag, oxidative stress, and histopathological alterations in the target organs of the fish, Labeo rohita.
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Affiliation(s)
- Chellappan Shobana
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Basuvannan Rangasamy
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Rama Krishnan Poopal
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
- Environmental Toxicology and Toxicogenomics Laboratory, Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, India
| | - Sivashankar Renuka
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Mathan Ramesh
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.
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Kathiravan V. Green synthesis of silver nanoparticles using different volumes of Trichodesma indicum leaf extract and their antibacterial and photocatalytic activities. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3405-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Biosynthesis of silver nanoparticles by using Camellia japonica leaf extract for the electrocatalytic reduction of nitrobenzene and photocatalytic degradation of Eosin-Y. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 170:164-172. [DOI: 10.1016/j.jphotobiol.2017.03.018] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 03/26/2017] [Indexed: 11/20/2022]
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Mendis P, de Silva RM, de Silva KMN, Wijenayaka LA, Jayawardana K, Yan M. Nanosilver rainbow: a rapid and facile method to tune different colours of nanosilver through the controlled synthesis of stable spherical silver nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra08336f] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A rapid and simple one-pot reaction to synthesize stable, spherically shaped silver nanoparticles of different sizes producing distinct optical properties in aqueous solution at ambient temperature has been developed.
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Affiliation(s)
| | | | - K. M. Nalin de Silva
- Department of Chemistry
- University of Colombo
- Colombo 03
- Sri Lanka
- Sri Lanka Institute of Nanotechnology (SLINTEC)
| | | | - Kalana Jayawardana
- Department of Chemistry
- University of Massachusetts
- Lowell
- USA
- Department of Chemistry
| | - Mingdi Yan
- Department of Chemistry
- University of Massachusetts
- Lowell
- USA
- Department of Chemistry
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Nayak D, Ashe S, Rauta PR, Nayak B. Biosynthesis, characterisation and antimicrobial activity of silver nanoparticles using
Hibiscus rosa‐sinensis
petals extracts. IET Nanobiotechnol 2015; 9:288-93. [DOI: 10.1049/iet-nbt.2014.0047] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Debasis Nayak
- Immunology and Molecular Medicine LaboratoryDepartment of Life ScienceNational Institute of TechnologyRourkelaOdishaIndia
| | - Sarbani Ashe
- Immunology and Molecular Medicine LaboratoryDepartment of Life ScienceNational Institute of TechnologyRourkelaOdishaIndia
| | - Pradipta Ranjan Rauta
- Immunology and Molecular Medicine LaboratoryDepartment of Life ScienceNational Institute of TechnologyRourkelaOdishaIndia
| | - Bismita Nayak
- Immunology and Molecular Medicine LaboratoryDepartment of Life ScienceNational Institute of TechnologyRourkelaOdishaIndia
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Gou Y, Zhang F, Zhu X, Li X. Biosynthesis and characterisation of silver nanoparticles using
Sphingomonas paucimobilis
sp. BDS1. IET Nanobiotechnol 2015; 9:53-7. [DOI: 10.1049/iet-nbt.2014.0005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Affiliation(s)
- Yujun Gou
- Faculty of Life Science and Chemical EngineeringHuaiYin Institute of TechnologyHuaian 223003The People's Republic of China
| | - Feng Zhang
- Faculty of Life Science and Chemical EngineeringHuaiYin Institute of TechnologyHuaian 223003The People's Republic of China
| | - Xiaoyan Zhu
- Faculty of Life Science and Chemical EngineeringHuaiYin Institute of TechnologyHuaian 223003The People's Republic of China
| | - Xiangqian Li
- Faculty of Life Science and Chemical EngineeringHuaiYin Institute of TechnologyHuaian 223003The People's Republic of China
- Enzyme and Biomaterials Center, Jiangsu Provincial Engineering Laboratory for Biomass Conversion and Process IntegrationHuaian223003The People's Republic of China
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Kathiravan V, Ravi S, Ashokkumar S. Synthesis of silver nanoparticles from Melia dubia leaf extract and their in vitro anticancer activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 130:116-21. [PMID: 24769382 DOI: 10.1016/j.saa.2014.03.107] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 03/22/2014] [Accepted: 03/29/2014] [Indexed: 05/27/2023]
Abstract
Silver nanoparticles have a significant role in the pharmaceutical science. Especially, silver nanoparticles synthesized by the plant extracts lead a significant role in biological activities such as antimicrobial, antioxidant and anticancer. Keeping this in mind, the present work investigation has been taken up with the synthesized silver nanoparticles using the plant extract of Melia dubia and it characterizes by using UV-visible, XRD and SEM-EDS. The effect of the silver nanoparticles on human breast cancer (KB) cell line has been tested. Silver nanoparticles showed remarkable cytotoxicity activity against KB cell line with evidence of high therapeutic index value are the results are discussed.
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Affiliation(s)
- V Kathiravan
- Department of Physics, Annamalai University, Annamalainagar 608002, Tamil Nadu, India
| | - S Ravi
- Department of Engg. Physics, Annamalai University, Annamalainagar 608002, Tamil Nadu, India.
| | - S Ashokkumar
- Department of Physics, Annamalai University, Annamalainagar 608002, Tamil Nadu, India
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Jheng BT, Liu PT, Wu MC. Efficiency enhancement of non-selenized Cu(In,Ga)Se2 solar cells employing scalable low-cost antireflective coating. NANOSCALE RESEARCH LETTERS 2014; 9:331. [PMID: 25114632 PMCID: PMC4120737 DOI: 10.1186/1556-276x-9-331] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 06/07/2014] [Indexed: 06/03/2023]
Abstract
In this study, a non-selenized CuInGaSe2 (CIGS) solar device with textured zinc oxide (ZnO) antireflection coatings was studied. The ZnO nanostructure was fabricated by a low-temperature aqueous solution deposition method. With controlling the morphology of the solution-grown tapered ZnO nanorod coatings, the average reflectance of the CIGS solar device decreased from 8.6% to 2.1%, and the energy conversion efficiency increased from 9.1% to 11.1%. The performance improvement in the CuInGaSe2 thin-film solar cell was well explained due to the gradual increase of the refractive index between air and the top electrode of solar cell device by the insertion of the ZnO nanostructure. The results demonstrate a potential application of the ZnO nanostructure array for efficient solar device technology.
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Affiliation(s)
- Bao-Tang Jheng
- Department of Electrical Engineering, National Tsing Hua University, Hsinchu City 30013, Taiwan
| | - Po-Tsun Liu
- Department of Photonics & Display Institute, National Chiao Tung University, Hsinchu City 30010, Taiwan
| | - Meng-Chyi Wu
- Department of Electrical Engineering, National Tsing Hua University, Hsinchu City 30013, Taiwan
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Chang YM, Liu MC, Kao PH, Lin CM, Lee HY, Juang JY. Field emission in vertically aligned ZnO/Si-nanopillars with ultra low turn-on field. ACS APPLIED MATERIALS & INTERFACES 2012; 4:1411-1416. [PMID: 22288496 DOI: 10.1021/am201667m] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
An effective method of fabricating vertically aligned silicon nanopillars (Si-NPs) was realized by using the self-assembled silver (Ag) nanodots as natural metal-nanomask during dry etching process. The obtained Si-NPs were preferentially aligned along the c-axis direction. Ultrathin ZnO films (~9 nm) were subsequently deposited on the Si-NPs by atomic layer deposition (ALD) to enhance the field emission property. The average diameter of the ZnO/Si-NPs is in the order of tens of nanometers, which enables efficient field emission and gives rise to marked improvement in the field enhancement factor, β. The turn-on field defined by the 10 μA/cm(2) current density criterion is ~0.74 V/μm with an estimated β ≈ 1.33×10(4). The low turn-on field and marked enhancement in β were attributed to the small radius of curvature, high aspect ratio, and perhaps more importantly, proper density distribution of the ZnO/Si-NPs.
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Affiliation(s)
- Yuan-Ming Chang
- Department of Electrophysics, National Chiao Tung University, Hsinchu 300, Taiwan.
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