1
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Wang X, Sun X, Liu W, Li H, Wang J, Wang D. Amino acid-mediated amorphous copper sulphide with enhanced photothermal conversion efficiency for antibacterial application. J Colloid Interface Sci 2024; 657:142-154. [PMID: 38035417 DOI: 10.1016/j.jcis.2023.11.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/10/2023] [Accepted: 11/25/2023] [Indexed: 12/02/2023]
Abstract
Pathogenic bacteria in daily life, such as Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli), often seriously affect human life and health. The extensive use of antibiotics has led to the emergence of drug-resistant bacteria, so it is urgent to develop efficient and non-drug-resistant sterilization methods. Here, we use small-molecule cysteine (Cys) as an auxiliary agent to synthesize spherical porous amorphous CuS-Cysteine (CuS-C) nanoparticles, which have good dispersion in aqueous solutions, and explore the reaction mechanism of Cys-induced CuS synthesis. The synthesized composite nanomaterials have strong near-infrared light absorption ability and efficient photothermal conversion ability and can effectively ablate pathogenic bacteria under the irradiation of an 808 nm laser. In addition, antibacterial experiments showed that CuS-C composites had no bactericidal effect without near-infrared light, but they had a good photothermal bactericidal effect on S. aureus and E. coli under radiation conditions. Considering the simple synthesis process, strong photothermal conversion ability, low cost, and suitability for large-scale production, CuS-C nanocomposites, as a promising antibacterial material, will provide a feasible scheme for the treatment of drug-resistant pathogens.
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Affiliation(s)
- Xinhao Wang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong, China
| | - Xiaoyan Sun
- Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao 266000, Shandong, China
| | - Wenliang Liu
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong, China
| | - Hui Li
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong, China
| | - Jiqian Wang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong, China
| | - Dong Wang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong, China.
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2
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Ouyang A, Zhao D, Wang X, Zhang W, Jiang T, Li A, Liu W. Covalent RGD-graphene-phthalocyanine nanocomposite for fluorescence imaging-guided dual active/passive tumor-targeted combinatorial phototherapy. J Mater Chem B 2021; 10:306-320. [PMID: 34935023 DOI: 10.1039/d1tb02254g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Poor tumor selectivity, low stability and quenched fluorescence are the main challenges to be overcome for nanomedicine, and are mainly caused by the dissociation of the nanostructure and aggregation of chromophores in the biological environment. Herein, covalently connected nanoparticles RGD-graphene-phthalocyanine (RGD-GO-SiPc) were constructed based on RGD peptide, silicon phthalocyanine (SiPc) and graphene oxide (GO) via a conjugation reaction for fluorescence imaging-guided cancer-targeted combinatorial phototherapy. The prepared RGD-GO-SiPc exhibited supreme biological stability, high-contrast fluorescence imaging, significantly enhanced NIR absorption, high photothermal conversion efficiency (25.6%), greatly improved cancer-targeting capability, and synergistic photodynamic (PDT) and photothermal therapy (PTT) efficacy along with low toxicity. Both in vitro and in vivo biological studies showed that RGD-GO-SiPc is a kind of promising multifunctional nanomedicine for fluorescence imaging-guided combined photothermal and photodynamic therapy with dual active/passive tumor-targeting properties.
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Affiliation(s)
- Ancheng Ouyang
- Institute of Crystal Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
| | - Dongmu Zhao
- Institute of Crystal Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
| | - Xianglei Wang
- Institute of Crystal Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
| | - Wei Zhang
- Institute of Crystal Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
| | - Tianyu Jiang
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao - 266237, P. R. China
| | - Aiying Li
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao - 266237, P. R. China
| | - Wei Liu
- Institute of Crystal Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
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3
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Li R, Ma H, Shu J, Lian Z, Chen N, Ou S, Jin R, Li S, Yang H. Surface engineering of copper sulfide-titania-graphitic carbon nitride ternary nanohybrid as an efficient visible-light photocatalyst for pollutant photodegradation. J Colloid Interface Sci 2021; 604:198-207. [PMID: 34265680 DOI: 10.1016/j.jcis.2021.07.030] [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: 05/02/2021] [Revised: 07/03/2021] [Accepted: 07/05/2021] [Indexed: 12/23/2022]
Abstract
Advanced photocatalyst is a key for photocatalytic water purification in the environmental pollutant remediation. In this study, graphitic carbon nitride (g-CN) modified by CuS and TiO2 ternary nanohybrid (CuS-TiO2-g-CN) with close interfacial contact among CuS, TiO2 and g-CN was fabricated through a facile and green method. Compared to the binary g-CN-based counterparts, the CuS-TiO2-g-CN possesses multiple photo-generated charge transfers owing to the synergistic action of CuS, TiO2 and g-CN. And hence the separation efficiency of photo-generated electron-hole pairs can be improved for the CuS-TiO2-g-CN. The optical and photoelectrochemical measurements prove that the CuS-TiO2-g-CN has narrower band gap energy and higher transient photocurrent density than those of g-CN and TiO2-g-CN. Therefore, the CuS-TiO2-g-CN shows notably higher photocatalytic activity and stability towards the degradation of Rhodamine B (RhB) than g-CN and TiO2-g-CN under visible-light irradiation. Moreover, a possible visible-light photocatalytic mechanism of CuS-TiO2-g-CN for degrading RhB was also proposed on the basis of the experimental results and literature reports.
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Affiliation(s)
- Ruxia Li
- State Key Laboratory of Applied Organic Chemistry, Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Haojie Ma
- Key Laboratory of New Energy & New Functional Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, PR China
| | - Junhao Shu
- State Key Laboratory of Applied Organic Chemistry, Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Zhuoming Lian
- State Key Laboratory of Applied Organic Chemistry, Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Nian Chen
- State Key Laboratory of Applied Organic Chemistry, Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Shiyong Ou
- State Key Laboratory of Applied Organic Chemistry, Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Ruifa Jin
- Inner Mongolia Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Life Sciences, Chifeng University, Chifeng 024000, PR China
| | - Shuwen Li
- State Key Laboratory of Applied Organic Chemistry, Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Honglei Yang
- State Key Laboratory of Applied Organic Chemistry, Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China.
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4
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Nain A, Huang HH, Chevrier DM, Tseng YT, Sangili A, Lin YF, Huang YF, Chang L, Chang FC, Huang CC, Tseng FG, Chang HT. Catalytic and photoresponsive BiZ/Cu xS heterojunctions with surface vacancies for the treatment of multidrug-resistant clinical biofilm-associated infections. NANOSCALE 2021; 13:18632-18646. [PMID: 34734624 DOI: 10.1039/d1nr06358h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We report a one-pot facile synthesis of highly photoresponsive bovine serum albumin (BSA) templated bismuth-copper sulfide nanocomposites (BSA-BiZ/CuxS NCs, where BiZ represents in situ formed Bi2S3 and bismuth oxysulfides (BOS)). As-formed surface vacancies and BiZ/CuxS heterojunctions impart superior catalytic, photodynamic and photothermal properties. Upon near-infrared (NIR) irradiation, the BSA-BiZ/CuxS NCs exhibit broad-spectrum antibacterial activity, not only against standard multidrug-resistant (MDR) bacterial strains but also against clinically isolated MDR bacteria and their associated biofilms. The minimum inhibitory concentration of BSA-BiZ/CuxS NCs is 14-fold lower than that of BSA-CuxS NCs because their multiple heterojunctions and vacancies facilitated an amplified phototherapeutic response. As-prepared BSA-BiZ/CuxS NCs exhibited substantial biofilm inhibition (90%) and eradication (>75%) efficiency under NIR irradiation. Furthermore, MRSA-infected diabetic mice were immensely treated with BSA-BiZ/CuxS NCs coupled with NIR irradiation by destroying the mature biofilm on the wound site, which accelerated the wound healing process via collagen synthesis and epithelialization. We demonstrate that BSA-BiZ/CuxS NCs with superior antimicrobial activity and high biocompatibility hold great potential as an effective photosensitive agent for the treatment of biofilm-associated infections.
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Affiliation(s)
- Amit Nain
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
- Nano Science and Technology Program, Taiwan International Graduate Program, Taipei 11529, Taiwan
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan.
| | - Hao-Hsin Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Daniel M Chevrier
- Biosciences and Biotechnologies Institute of Aix-Marseille (BIAM), CEA Cadarache, Bâtiment 1900, Saint-Paul-lez-Durance, France
| | - Yu-Ting Tseng
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
| | - Arumugam Sangili
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
| | - Yu-Feng Lin
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
| | - Yu-Fen Huang
- Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Lung Chang
- Department of Pediatrics, Mackay Memorial Hospital and Mackay Junior College of Medicine, Taipei, 10449, Taiwan.
| | - Fu-Chieh Chang
- Infection Control Centre, Mackay Memorial Hospital, Taipei, 10449, Taiwan
- College of Management, Yuan Ze University, Taoyuan City, 32003, Taiwan
- Nursing and Management, Mackay Junior College of Medicine, Taipei, 10650, Taiwan
| | - Chih-Ching Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan
- Centre of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Fan-Gang Tseng
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan.
- Research Centre for Applied Sciences Academia Sinica, Taipei 11529, Taiwan
- Frontier Research Centre on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
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5
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Nain A, Wei SC, Lin YF, Tseng YT, Mandal RP, Huang YF, Huang CC, Tseng FG, Chang HT. Copper Sulfide Nanoassemblies for Catalytic and Photoresponsive Eradication of Bacteria from Infected Wounds. ACS APPLIED MATERIALS & INTERFACES 2021; 13:7865-7878. [PMID: 33586966 DOI: 10.1021/acsami.0c18999] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Bovine serum albumin (BSA)-encapsulated copper sulfide nanocrystals (CuS NCs) were prepared by heating an alkaline solution containing copper ions and BSA without an additional sulfur source. At a high BSA concentration (0.8 mM), nanoassembly of the as-formed CuS NCs occurs to form BSA-CuS NCs as a result of the formation of BSA gel-like structures. In addition to their intrinsic photothermal properties, the BSA-CuS NCs possess rich surface vacancies and thus exhibit enzyme-like and photodynamic activities. Spontaneous generation of hydrogen peroxide (H2O2) led to the in situ formation of copper peroxide (CPO) nanodots on the BSA-CuS NCs to catalyze singlet oxygen radical generation. The antimicrobial response was enhanced by >60-fold upon NIR laser irradiation, which was ascribed to the combined effect of the photodynamic and photothermal inactivation of bacteria. Furthermore, BSA-CuS NCs were transdermally administered onto a methicillin-resistant Staphylococcus aureus-infected wound and eradicated >99% of bacteria in just 1 min under NIR illumination due to the additional peroxidase-like activity of BSA-CuS NCs, transforming H2O2 at the infection site into hydroxyl radicals and thus increasing the synergistic effect from photodynamic and photothermal treatment. The BSA-CuS NCs exhibited insignificant in vitro cytotoxicity and hemolysis and thus can serve as highly biocompatible bactericides in preclinical applications to effectively eradicate bacteria.
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Affiliation(s)
- Amit Nain
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
- Nano Science and Technology Program, Taiwan International Graduate Program, Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Shih-Chun Wei
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Feng Lin
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Ting Tseng
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | | | - Yu-Fen Huang
- Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chih-Ching Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Fan-Gang Tseng
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
- Research Center for Applied Sciences Academia Sinica, Taipei 11529, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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6
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Qiao F, Xie Y, He G, Chu H, Liu W, Chen Z. Light trapping structures and plasmons synergistically enhance the photovoltaic performance of full-spectrum solar cells. NANOSCALE 2020; 12:1269-1280. [PMID: 31912834 DOI: 10.1039/c9nr08761c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A full-spectrum solar cell exhibits potential as an effective strategy to enhance the absorption of incident solar light. To ensure the absorption capability of solar cells, trapping structures or plasmons have emerged as two main ways of utilizing the full spectrum of solar energy. First, recent progress in the full-spectrum solar cells based on NCs was reviewed from the aspects of trapping structures and plasmon design. Moreover, the effects of light trapping and surface plasmon resonance on light absorption and photoelectronic conversion were emphasized and discussed. Finally, the application prospect of their combination in the field of full-spectrum solar cells was examined. It was pointed out that the deep exploration of the physical mechanism of photoelectric conversion, controllable preparation of the interface and stability of composite structures will become the main directions of future research.
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Affiliation(s)
- Fen Qiao
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang, 212013, P R China.
| | - Yi Xie
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, No. 122, Luoshi Road, Wuhan 430070, P.R. China
| | - Gang He
- School of physics and Materials Science, Radiation Detection Materials & Devices Lab, Anhui University, Hefei 230601, P.R. China
| | - Huaqiang Chu
- School of Energy and Environment, Anhui University of Technology, Ma'an shan 243002, P.R. China.
| | - Wenjie Liu
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang, 212013, P R China.
| | - Zhenya Chen
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang, 212013, P R China.
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7
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Xie Y, Rahman MM, Kareem S, Dong H, Qiao F, Xiong W, Liu X, Li N, Zhao X. Facile synthesis of CuS/MXene nanocomposites for efficient photocatalytic hydrogen generation. CrystEngComm 2020. [DOI: 10.1039/d0ce00104j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Deposition of covellite CuS nanocrystals on the multilayered MXene and few-layered MXene by a facile reaction of S2− with Cu2+ precursors to obtain 0D/2D nanocomposites.
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Affiliation(s)
- Yi Xie
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Md Mushfiqure Rahman
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Shefiu Kareem
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Hao Dong
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Fen Qiao
- School of Energy and Power Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Wei Xiong
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Xiaoqing Liu
- Center for Materials Research and Analysis
- Wuhan University of Technology
- Wuhan
- P.R. China
| | - Neng Li
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Xiujian Zhao
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
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8
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Bell EC, Munro CJ, Slocik JM, Shukla D, Parab AD, Cohn JL, Knecht MR. Biomimetic strategies to produce catalytically reactive CuS nanodisks. NANOSCALE ADVANCES 2019; 1:2857-2865. [PMID: 36133622 PMCID: PMC9418022 DOI: 10.1039/c9na00335e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 06/11/2019] [Indexed: 06/16/2023]
Abstract
Copper sulfide materials have diverse applications from cancer therapy to environmental remediation due to their narrow bandgap and easily tuned plasmon. The synthesis of these materials often involves toxic reagents and harsh conditions where biomimetic methods may provide opportunities to produce these structures under sustainable conditions. To explore this capability, simple amino acids were exploited as biological ligands for the ambient synthesis of CuS materials. Using an aqueous-based approach, CuS nanodisks were prepared using acid-containing amino acid molecules that stabilize the materials against bulk aggregation. These structures were fully characterized by UV-vis analysis, transmission electron microscopy, dynamic light scattering, atomic force microscopy, selected area electron diffraction, and X-ray diffraction, which confirmed the formation of CuS. The materials possessed a vibrant plasmon band in the near IR region and demonstrated enhanced photocatalytic reactivity for the advanced oxidation of organic dyes in water. These results demonstrate a room temperature synthetic route to optically important materials, which could have important application in catalysis, optics, nanomedicine, etc.
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Affiliation(s)
- Elise C Bell
- Department of Chemistry, University of Miami 1301 Memorial Drive Coral Gables Florida 33146 USA
| | - Catherine J Munro
- Department of Chemistry, University of Miami 1301 Memorial Drive Coral Gables Florida 33146 USA
| | - Joseph M Slocik
- Air Force Research Laboratory, Wright-Patterson Air Force Base Ohio 45433 USA
| | - Dharmendra Shukla
- Department of Physics, University of Miami 1320 Campo Sano Drive Coral Gables Florida 33146 USA
| | - Atul D Parab
- Department of Chemistry, University of Miami 1301 Memorial Drive Coral Gables Florida 33146 USA
| | - Joshua L Cohn
- Department of Physics, University of Miami 1320 Campo Sano Drive Coral Gables Florida 33146 USA
| | - Marc R Knecht
- Department of Chemistry, University of Miami 1301 Memorial Drive Coral Gables Florida 33146 USA
- Dr. J. T. Macdonald Foundation Biomedical Nanotechnology Institute, University of Miami UM Life Science Technology Building, 1951 NW 7th Ave, Suite 475 Miami Florida 33136 USA
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9
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Córdova-Castro RM, Casavola M, van Schilfgaarde M, Krasavin AV, Green MA, Richards D, Zayats AV. Anisotropic Plasmonic CuS Nanocrystals as a Natural Electronic Material with Hyperbolic Optical Dispersion. ACS NANO 2019; 13:6550-6560. [PMID: 31117375 DOI: 10.1021/acsnano.9b00282] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Copper sulfide nanocrystals have recently been studied due to their metal-like behavior and strong plasmonic response, which make them an attractive material for nanophotonic applications in the near-infrared spectral range; however, the nature of the plasmonic response remains unclear. We have performed a combined experimental and theoretical study of the optical properties of copper sulfide colloidal nanocrystals and show that bulk CuS resembles a heavily doped p-type semiconductor with a very anisotropic energy band structure. As a consequence, CuS nanoparticles possess key properties of relevance to nanophotonics applications: they exhibit anisotropic plasmonic behavior in the infrared and support optical modes with hyperbolic dispersion in the 670-1050 nm spectral range. We also predict that the ohmic loss is low compared to conventional plasmonic materials such as noble metals in the NIR. The plasmonic resonances can be tuned by controlling the size and shape of the nanocrystals, providing a playground for future nanophotonic applications in the near-infrared.
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Affiliation(s)
- R Margoth Córdova-Castro
- Department of Physics and London Centre for Nanotechnology , King's College London , London WC2R 2LS , United Kingdom
| | - Marianna Casavola
- Department of Physics and London Centre for Nanotechnology , King's College London , London WC2R 2LS , United Kingdom
| | - Mark van Schilfgaarde
- Department of Physics and London Centre for Nanotechnology , King's College London , London WC2R 2LS , United Kingdom
| | - Alexey V Krasavin
- Department of Physics and London Centre for Nanotechnology , King's College London , London WC2R 2LS , United Kingdom
| | - Mark A Green
- Department of Physics and London Centre for Nanotechnology , King's College London , London WC2R 2LS , United Kingdom
| | - David Richards
- Department of Physics and London Centre for Nanotechnology , King's College London , London WC2R 2LS , United Kingdom
| | - Anatoly V Zayats
- Department of Physics and London Centre for Nanotechnology , King's College London , London WC2R 2LS , United Kingdom
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10
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Jing J, Gu X, Zhang S, Sun J, Chen Y, Sun T. Doping of aluminum (Al) into copper sulfide (CuS) nanocrystals enhanced their solar spectral selectivity. CrystEngComm 2019. [DOI: 10.1039/c9ce00668k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Al-CuS/PVA film possessed low NIR transmittance and high visible light transmittance. CuS nanocrystals doping Al significantly enhance their solar spectral selectivity.
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Affiliation(s)
- Jiang Jing
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing
- China
| | - Xiaoyu Gu
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing
- China
| | - Sheng Zhang
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing
- China
| | - Jun Sun
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing
- China
| | - Yu Chen
- Beijing Huateng Hightech Corp
- Beijing
- China
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11
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Gu J, Xie Y, Chen W, Hu C, Qiao F, Xu Z, Liu X, Zhao X, Zhang G. Inter-diffusion of Cu2+ ions into CuS nanocrystals confines the microwave absorption properties. CrystEngComm 2018. [DOI: 10.1039/c8ce01435c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The inter-diffusion of Cu2+ cations into CuS nanocrystals generates CuS@Cu2−xS core–shell and Cu2S NCs in the presence of ascorbic acid (AA) at varying precursor Cu2+ : Cu+ molar ratios. The inter-diffusion process has a confining effect on the microwave absorption properties.
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Affiliation(s)
- Jiani Gu
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Yi Xie
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Wenhui Chen
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Chao Hu
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Fen Qiao
- School of Energy & Power Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Zhiyuan Xu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Xiaoqing Liu
- Center for Materials Research & Testing
- Wuhan University of Technology
- Wuhan
- P.R. China
| | - Xiujian Zhao
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
| | - Gaoke Zhang
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology (WUT)
- Wuhan 430070
- P. R. China
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