1
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Nan B, Zhan Y, Xu CA. A review on the thermal conductivity properties of polymer/ nanodiamond nanocomposites. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2116343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Bingfei Nan
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, Peking, China
- Department of Electronic and Biomedical Engineering, Universitat de Barcelona, Barcelona Spain
| | - Yingjie Zhan
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, Peking, China
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, Kwangtung, China
| | - Chang-an Xu
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, Peking, China
- Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, Kwangtung, China
- Key Laboratory for Bio-based Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, Kwangtung, China
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2
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Lv L, Ying J, Chen L, Tao P, Sun L, Yang K, Fu L, Yu J, Yan Q, Dai W, Jiang N, Lin CT. A Hierarchically Structured Graphene/Ag Nanowires Paper as Thermal Interface Material. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:793. [PMID: 36903671 PMCID: PMC10005576 DOI: 10.3390/nano13050793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/13/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
With the increase in heat power density in modern integrating electronics, thermal interface materials (TIM) that can efficiently fill the gaps between the heat source and heat sinks and enhance heat dissipation are urgently needed owing to their high thermal conductivity and excellent mechanical durability. Among all the emerged TIMs, graphene-based TIMs have attracted increasing attention because of the ultrahigh intrinsic thermal conductivity of graphene nanosheets. Despite extensive efforts, developing high-performance graphene-based papers with high through-plane thermal conductivity remains challenging despite their high in-plane thermal conductivity. In this study, a novel strategy for enhancing the through-plane thermal conductivity of graphene papers by in situ depositing AgNWs on graphene sheets (IGAP) was proposed, which could boost the through-plane thermal conductivity of the graphene paper up to 7.48 W m-1 K-1 under packaging conditions. In the TIM performance test under actual and simulated operating conditions, our IGAP exhibits strongly enhanced heat dissipation performance compared to the commercial thermal pads. We envision that our IGAP as a TIM has great potential for boosting the development of next-generation integrating circuit electronics.
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Affiliation(s)
- Le Lv
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junfeng Ying
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lu Chen
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peidi Tao
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
| | - Liwen Sun
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ke Yang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
| | - Li Fu
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Jinhong Yu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
| | - Qingwei Yan
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
| | - Wen Dai
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
| | - Nan Jiang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
| | - Cheng-Te Lin
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
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3
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Song J, Sui Y, Zhao Q, Ye Y, Qin C, Chen X, Song K. A reinforced concrete structure rGO/CNTs/Fe 2O 3/PEDOT:PSS paper electrode with excellent wettability and flexibility for supercapacitors. NEW J CHEM 2021. [DOI: 10.1039/d1nj02790e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A paper electrode with a reinforced concrete structure using reduced rGO nanosheets, PEDOT:PSS, CNTs and Fe2O3 nanoparticles was formed by a facile and simple vacuum drying method. The assembled symmetrical supercapacitor exhibits excellent electrochemical performance.
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Affiliation(s)
- Jia Song
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- P. R. China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion
| | - Yan Sui
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- P. R. China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion
| | - Qi Zhao
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- P. R. China
| | - Yuncheng Ye
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- P. R. China
| | - Chuanli Qin
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- P. R. China
| | - Xiaoshuang Chen
- College of Chemistry and Chemical Engineering
- Qiqihar University
- Qiqihar
- P. R. China
| | - Kun Song
- College of Chemistry and Chemical Engineering
- Qiqihar University
- Qiqihar
- P. R. China
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4
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Lee HJ, Choi WS. 2D and 3D Bulk Materials for Environmental Remediation: Air Filtration and Oil/Water Separation. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E5714. [PMID: 33333822 PMCID: PMC7765286 DOI: 10.3390/ma13245714] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/02/2020] [Accepted: 12/09/2020] [Indexed: 01/17/2023]
Abstract
Air and water pollution pose an enormous threat to human health and ecosystems. In particular, particulate matter (PM) and oily wastewater can cause serious environmental and health concerns. Thus, controlling PM and oily wastewater has been a great challenge. Various techniques have been reported to effectively remove PM particles and purify oily wastewater. In this article, we provide a review of the recent advancements in air filtration and oil/water separation using two- and three-dimensional (2D and 3D) bulk materials. Our review covers the advantages, characteristics, limitations, and challenges of air filters and oil/water separators using 2D and 3D bulk materials. In each section, we present representative works in detail and describe the concepts, backgrounds, employed materials, fabrication methods, and characteristics of 2D and 3D bulk material-based air filters and oil/water separators. Finally, the challenges, technical problems, and future research directions are briefly discussed for each section.
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Affiliation(s)
- Ha-Jin Lee
- Western Seoul Center, Korea Basic Science Institute, 150 Bugahyun-ro, Seoudaemun-gu, Seoul 120-140, Korea;
| | - Won San Choi
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseodaero, Yuseong-gu, Daejeon 305-719, Korea
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5
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Zhao HR, Ding JH, Shao ZZ, Xu BY, Zhou QB, Yu HB. High-Quality Boron Nitride Nanosheets and Their Bioinspired Thermally Conductive Papers. ACS APPLIED MATERIALS & INTERFACES 2019; 11:37247-37255. [PMID: 31508934 DOI: 10.1021/acsami.9b11180] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Hexagonal boron nitride has displayed increased potential in heat dissipation applications due to its desirable high thermal conductivity and remarkable thermal stability. However, the large-yield and high-quality preparation of boron nitride nanosheets (BNNSs) has been still an enormous challenge. In present work, we developed a universal exfoliation strategy to synthesize few-layer and defect-free BNNSs, which involved the intercalation of hexafluorosilicates/sodium hydroxide into BN crystals followed by exfoliation through a mild stirring process. The yield and concentration of as-obtained BNNS reached up to 78.5% and 12.78 mg/mL, respectively. More importantly, this method has been proven to exfoliate other layered materials like graphene (G), MoS2, and WS2. These as-obtained BNNSs can be directly used for constructing freestanding papers with high thermal conductivities. Typically, the thermal conductivities of the BNNS-G hybrid paper were up to 63.5 W/mK along the in-plane direction and 7.4 W/mK along the through-plane direction. According to the thermal interface materials performance measures, BNNS-G hybrid paper shows great promising applications for heat transfer in integrated circuit packaging.
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Affiliation(s)
- Hong-Ran Zhao
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies , Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
| | - Ji-Heng Ding
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies , Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
| | - Zhen-Zong Shao
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies , Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
| | - Bei-Yu Xu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies , Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
| | - Qing-Bo Zhou
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies , Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
| | - Hai-Bin Yu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies , Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201 , China
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6
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Zhu W, Li H, Wan A. EDC-Induced Self-Assembly of BSA-Au NCs. J Fluoresc 2019; 29:627-630. [PMID: 30989441 DOI: 10.1007/s10895-019-02369-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 03/19/2019] [Indexed: 01/05/2023]
Abstract
In this paper, the Au nanoplate with bright red fluorescence was synthesized on the basis of bovine serum albumin stabilized Au nanoclusters (BSA-Au NCs). The small molecule N-ethyl-N'-(dimethylaminopropyl) carbodiimide (EDC) was used as the cross-linking agent to activate the carboxyl group on the surface of BSA, and then the condensation with amino acid in BSA induced the self-assembly of BSA-Au NCs. The particle size of Au nanoplate increased with EDC concentration. In addition, when EDC concentration was 0.0050 M, the Au nanoplate changed from smooth to grainy structure. The Au nanoplate remained the unique fluorescence characteristics of BSA-Au NCs. As EDC concentration reached 0.0025 M, the Au nanoplate even exhibited brighter red emission than that of BSA-Au NCs.
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Affiliation(s)
- Wenli Zhu
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Huili Li
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai, 200240, China.
| | - Ajun Wan
- Institute of New Rural Development, Tong Ji University, Shanghai, 200092, China
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7
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Dai W, Lv L, Lu J, Hou H, Yan Q, Alam FE, Li Y, Zeng X, Yu J, Wei Q, Xu X, Wu J, Jiang N, Du S, Sun R, Xu J, Wong CP, Lin CT. A Paper-Like Inorganic Thermal Interface Material Composed of Hierarchically Structured Graphene/Silicon Carbide Nanorods. ACS NANO 2019; 13:1547-1554. [PMID: 30726676 DOI: 10.1021/acsnano.8b07337] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
With the increasing integration of devices in electronics fabrication, there are growing demands for thermal interface materials (TIMs) with high through-plane thermal conductivity for efficiently solving thermal management issues. Graphene-based papers consisting of a layer-by-layer stacked architecture have been commercially used as lateral heat spreaders; however, they lack in-depth studies on their TIM applications due to the low through-plane thermal conductivity (<6 W m-1 K-1). In this study, a graphene hybrid paper (GHP) was fabricated by the intercalation of silicon source and the in situ growth of SiC nanorods between graphene sheets based on the carbothermal reduction reaction. Due to the formation of covalent C-Si bonding at the graphene-SiC interface, the GHP possesses a superior through-plane thermal conductivity of 10.9 W m-1 K-1 and can be up to 17.6 W m-1 K-1 under packaging conditions at 75 psi. Compared with the current graphene-based papers, our GHP has the highest through-plane thermal conductivity value. In the TIM performance test, the cooling efficiency of the GHP achieves significant improvement compared to that of state-of-the-art thermal pads. Our GHP with characteristic structure is of great promise as an inorganic TIM for the highly efficient removal of heat from electronic devices.
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Affiliation(s)
- Wen Dai
- Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | | | | | | | | | - Fakhr E Alam
- Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | | | | | - Jinhong Yu
- Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Qiuping Wei
- State Key Laboratory of Powder Metallurgy, School of Materials Science and Engineering , Central South University , Changsha 410083 , PR China
| | - Xiangfan Xu
- Center for Phononics and Thermal Energy Science School of Physics Science and Engineering , Tongji University , Shanghai 200092 , China
| | - Jianbo Wu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering , Shanghai Jiao Tong University , Shanghai , 200240 , PR China
| | - Nan Jiang
- Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | | | | | - Jianbin Xu
- Department of Electronics Engineering , The Chinese University of Hong Kong , Shatin , New Territories , Hong Kong 999077 , China
| | - Ching-Ping Wong
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Cheng-Te Lin
- Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
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8
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Jiang L, Su C, Ye S, Wu J, Zhu Z, Wen Y, Zhang R, Shao W. Synergistic antibacterial effect of tetracycline hydrochloride loaded functionalized graphene oxide nanostructures. NANOTECHNOLOGY 2018; 29:505102. [PMID: 30251959 DOI: 10.1088/1361-6528/aae424] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
With the high demand for developing novel composites with integrated performance, graphene-based nanostructures have been drawing great attention in environmental and biomedical applications because of their extraordinary physicochemical properties and biocompatibility. Although graphene oxide (GO) nanosheets exhibit some antibacterial activities, novel GO based nanostructures with enhanced antibacterial activities are highly desired. To realize this aim, polyethyleneimine (PEI) modified GO as a tetracycline hydrochloride (TCH) carrier and release platform was constructed (pGO-TCH). The nanostructures were fully characterized by TEM, AFM, FTIR and Raman spectra, which demonstrated that TCH were uniformly and compactly deposited on PEI modified GO nanosheets. The antibacterial performances of the prepared nanostructures were investigated by disk diffusion method and bacterial growth kinetics method towards Gram-positive S. aureus and Gram-negative E. coli. Results show that pGO-TCH nanostructures exhibit good antibacterial behavior. The mechanism of antibacterial activity was studied. Moreover, the nanostructures showed good cytocompatibility. This study not only highlights a promising pGO-TCH nanostructure as a candidate of graphene-based antibacterial agent, but also provides us antibacterial mechanism between bacteria and graphene-based nanomaterials.
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Affiliation(s)
- Lei Jiang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
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9
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Song K, Wang X, Wang J, Zhang B, Zuo C. Bioinspired Reduced Graphene Oxide/Polyacrylonitrile-Based Carbon Fibers/CoFe2
O4
Nanocomposite for Flexible Supercapacitors with High Strength and Capacitance. ChemElectroChem 2018. [DOI: 10.1002/celc.201800004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kun Song
- Key Laboratory of Superlight Material and Surface Technology, Ministry of Education; Harbin Engineering University; Harbin 150001 Heilongriver P. R. China
- College of Chemistry and Chemical Engineering; Qiqihar University; Qiqihar 161006 Heilongriver P. R. China
| | - Xin Wang
- Key Laboratory of Superlight Material and Surface Technology, Ministry of Education; Harbin Engineering University; Harbin 150001 Heilongriver P. R. China
- College of Chemistry and Chemical Engineering; Qiqihar University; Qiqihar 161006 Heilongriver P. R. China
| | - Jun Wang
- Key Laboratory of Superlight Material and Surface Technology, Ministry of Education; Harbin Engineering University; Harbin 150001 Heilongriver P. R. China
| | - Bin Zhang
- Key Laboratory of Superlight Material and Surface Technology, Ministry of Education; Harbin Engineering University; Harbin 150001 Heilongriver P. R. China
| | - Chunling Zuo
- Key Laboratory of Superlight Material and Surface Technology, Ministry of Education; Harbin Engineering University; Harbin 150001 Heilongriver P. R. China
- College of Chemistry and Chemical Engineering; Qiqihar University; Qiqihar 161006 Heilongriver P. R. China
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10
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Du JL, Fang Y, Fu EG, Ding X, Yu KY, Wang YG, Wang YQ, Baldwin JK, Wang PP, Bai Q. What determines the interfacial configuration of Nb/Al 2O 3 and Nb/MgO interface. Sci Rep 2016; 6:33931. [PMID: 27698458 PMCID: PMC5048433 DOI: 10.1038/srep33931] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 08/25/2016] [Indexed: 12/02/2022] Open
Abstract
Nb films are deposited on single crystal Al2O3 (110) and MgO(111) substrates by e-beam evaporation technique. Structure of Nb films and orientation relationships (ORs) of Nb/Al2O3 and Nb/MgO interface are studied and compared by the combination of experiments and simulations. The experiments show that the Nb films obtain strong (110) texture, and the Nb film on Al2O3(110) substrate shows a higher crystalline quality than that on MgO(111) substrate. First principle calculations show that both the lattice mismatch and the strength of interface bonding play major roles in determining the crystalline perfection of Nb films and ORs between Nb films and single crystal ceramic substrates. The fundamental mechanisms for forming the interfacial configuration in terms of the lattice mismatch and the strength of interface bonding are discussed.
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Affiliation(s)
- J L Du
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, P. R. China
| | - Y Fang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - E G Fu
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, P. R. China
| | - X Ding
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - K Y Yu
- Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, P. R. China
| | - Y G Wang
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, P. R. China
| | - Y Q Wang
- Experimental Physical Sciences Directorate, Los Alamos National Laboratory, Los Alamos, NM 87544, USA
| | - J K Baldwin
- Experimental Physical Sciences Directorate, Los Alamos National Laboratory, Los Alamos, NM 87544, USA
| | - P P Wang
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, P. R. China
| | - Q Bai
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, P. R. China
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11
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Kim GP, Lee M, Lee YJ, Bae S, Song HD, Song IK, Yi J. Polymer-mediated synthesis of a nitrogen-doped carbon aerogel with highly dispersed Pt nanoparticles for enhanced electrocatalytic activity. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.02.064] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Lin Y, Hamme Ii AT. Targeted highly sensitive detection/eradication of multi-drug resistant Salmonella DT104 through gold nanoparticle-SWCNT bioconjugated nanohybrids. Analyst 2015; 139:3702-5. [PMID: 24897935 DOI: 10.1039/c4an00744a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Monoclonal antibody-conjugated sphere-shaped gold nanoparticles were combined with single-walled carbon nanotubes (SWCNTs) to create a nanohybrid system to selectively detect and eradicate multiple drug resistant Salmonella (MDRS) typhimurium DT104 bacteria. The Raman signal intensity from Rhodamine 6G (Rh6G) modified monoclonal AC04 antibody SWCNTs-gold nanoparticle (SWCNT-GNPs) hybrid provided a SERS enhancement by several orders of magnitude to detect the MDRS bacteria over the GNP system. A targeted photothermolysis experiment using 670 nm light at 2 W cm(-2) for 15 min, resulted in selective and irreparable damage to more than 99% Salmonella DT104 at the concentration of 10(5) CFU mL(-1). In comparison to solely SWCNTs or GNPs, our SWCNT-GNPs nanohybrids have also shown a better photothermal efficiency.
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Affiliation(s)
- Yunfeng Lin
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217, USA.
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13
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Mohamed MM. Gold loaded titanium dioxide–carbon nanotube composites as active photocatalysts for cyclohexane oxidation at ambient conditions. RSC Adv 2015. [DOI: 10.1039/c5ra05253j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Photocatalytic oxidation of neat cyclohexane with H2O2 was carried out using several types of gold modified materials including titania nanotubes, reduced graphene oxide and titania nanotube–multiwalled carbon nanotube composites under UV irradiation.
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14
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Gao X, Xu G, Zhao Y, Li S, Shi F, Chen Y. Self-assembly of amine-functionalized gold nanoparticles on phosphonate-functionalized graphene nanosheets: a highly active catalyst for the reduction of 4-nitrophenol. RSC Adv 2015. [DOI: 10.1039/c5ra18228j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Au-NP@NH2 can effectively self-assemble on the surface of GNS-PO3H2 and show excellent catalytic activity in the reduction of 4-nitrophenol.
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Affiliation(s)
- Xueqing Gao
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- PR China
| | - Guangrui Xu
- School of Materials Science and Engineering
- Shaanxi Normal University
- Xi'an 710062
- PR China
| | - Yan Zhao
- National Coal Inspection Centre
- Shaanxi Institute of Energy Quality Supervision and Inspection
- Xi'an
- PR China
| | - Shuni Li
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- PR China
| | - Feng Shi
- School of Materials Science and Engineering
- Shaanxi Normal University
- Xi'an 710062
- PR China
| | - Yu Chen
- School of Materials Science and Engineering
- Shaanxi Normal University
- Xi'an 710062
- PR China
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15
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Lee J, Kim J, Ahmed SR, Zhou H, Kim JM, Lee J. Plasmon-induced photoluminescence immunoassay for tuberculosis monitoring using gold-nanoparticle-decorated graphene. ACS APPLIED MATERIALS & INTERFACES 2014; 6:21380-8. [PMID: 25394727 DOI: 10.1021/am506389m] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Metal-nanoparticle-functionalized graphene, in particular, graphene sheets containing Au nanoparticles (Au NPs), have generated considerable interest because of their unique optical and electrical characteristics. In this study, we successfully produced graphene sheets decorated with Au NPs (AuGrp) using phytochemicals as reducing agents. During this reaction, Au ions intercalated into the layered graphene flakes and were then reduced into NPs, exfoliating the graphene sheets. The physicochemical properties of the AuGrp nanocomposites were characterized, and the exfoliation process was investigated using a molecular dynamics simulation of Au NPs between graphene sheets. Our proposed technique is advantageous because the phytochemicals are mild reducing agents that preserve the graphene structure during exfoliation and NP decoration. The dispersity of the NPs on the graphene sheets was drastically improved due to the use of metal-ion intercalation. Moreover, the electrical conductivity was 6-30 times higher than that of bare graphene and reduced graphene oxide. Using antibody (Ab) modified AuGrp sheets and quantum dots, a plasmonic-induced photoluminescence immunoassay of tuberculosis (TB) antigen (aG) CFP-10 was demonstrated for a potential application of these materials. The enhancement of photoluminescence (PL) response was monitored depending on the various TB aG concentrations from 5.1 pg/mL to 51 μg/mL, and the detection limit for CFP-10 was 4.5 pg/mL. Furthermore, the selectivity was demonstrated with Ag85 as the other TB aG, and PL enhancement was not observed in this case. Therefore, AuGrp-based immunoassay showed the potential for biosensor application.
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Affiliation(s)
- Jaewook Lee
- Department of Nano Fusion and Cogno-Mechatronics Engineering, Pusan National University , Busan 609-735, Republic of Korea
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16
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Xu C, Xu Y, Zhu J. Photocatalytic antifouling graphene oxide-mediated hierarchical filtration membranes with potential applications on water purification. ACS APPLIED MATERIALS & INTERFACES 2014; 6:16117-23. [PMID: 25148296 DOI: 10.1021/am5040945] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Graphene oxide-based filtration membranes with photocatalytic antifouling function have been successfully synthesized by a two-step method for the first time. First, graphene oxide particles composite sheets are prepared by decorating graphene oxide sheets with appropriate amount of TiO2 nanoparticles, which can be assembled into filtration membranes with suitable permeation and retention rates. Then, an additional TiO2 particle layer (P25) with strong photocatalysis activity is coated on these films by filtration, forming hierarchical structure membranes. The filtration properties of the as-obtained films are investigated by treating dye solution, and the results demonstrate that these membranes possess favorable photocatalytic antifouling function under UV light irradiation, which can maintain the clean films and their filtration properties, broadening the horizon for the vast use of these graphene-involved films in water purification.
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Affiliation(s)
- Chao Xu
- Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University , Fuzhou 350002, P. R. China
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17
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Xin G, Sun H, Hu T, Fard HR, Sun X, Koratkar N, Borca-Tasciuc T, Lian J. Large-area freestanding graphene paper for superior thermal management. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:4521-6. [PMID: 24817208 DOI: 10.1002/adma.201400951] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 03/28/2014] [Indexed: 05/25/2023]
Abstract
Large-area freestanding graphene papers (GPs) are fabricated by electrospray deposition integrated with a continuous roll-to-roll process. Upon mechanical compaction and thermal annealing, GPs can achieve a thermal conductivity of as high as 1238.3-1434 W m(-1) K(-1) . The super-thermally conductive GPs display an outstanding heat-spread ability and are more efficient in removing hot spots than Cu and Al foils.
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Affiliation(s)
- Guoqing Xin
- Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, 110, 8th Street, Troy, NY, 12180, USA
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18
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Oh KM, Cho SW, Kim GO, Ryu KS, Jeong HM. Novel graphene papers with sporadic alkyl brushes on the basal plane as a high-capacity flexible anode for lithium ion batteries. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.05.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Liu S, Wu B, Yang X. Electrolyte-induced reorganization of SDS self-assembly on graphene: a molecular simulation study. ACS APPLIED MATERIALS & INTERFACES 2014; 6:5789-5797. [PMID: 24670893 DOI: 10.1021/am5006095] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A molecular dynamics simulation was conducted to study the structure and morphology of sodium dodecyl sulfate (SDS) surfactants adsorbed on a nanoscale graphene nanostructure in the presence of an electrolyte. The self-assembly structure can be reorganized by the electrolyte-induced effect. An increase in the ionic strength of the added electrolyte can enhance the stretching of adsorbed surfactants toward the bulk aqueous phase and make headgroups assemble densely, leading to a more compact structure of the SDS/graphene composite. The change in the self-assembly structure is attributed to the accumulation/condensation of electrolyte cations near the surfactant aggregate, consequently screening the electrostatic repulsion between charged headgroups. The role of the electrolyte revealed here provides direct microscopic evidence or an explanation of the reported experiments in the electrolyte tuning of the interfacial structure of a surfactant aggregate on the surface of carbon nanoparticles. Additionally, the buoyant density of the SDS/graphene assembly has been computed. With an increase in the ionic strength of the electrolyte, the buoyant density of the SDS/graphene composite rises. The interfacial accumulation of electrolytes provides an important contribution to the density enhancement. The study will be valuable for the dispersion and application of graphene nanomaterials.
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Affiliation(s)
- Shuyan Liu
- State Key Laboratory of Material-Orientated Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology , Nanjing 210009, China
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20
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21
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Fu WL, Zhen SJ, Huang CZ. Controllable preparation of graphene oxide/metal nanoparticle hybrids as surface-enhanced Raman scattering substrates for 6-mercaptopurine detection. RSC Adv 2014. [DOI: 10.1039/c4ra00658e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
In this contribution, a new simple and cost-effective strategy for the preparation of hybrids of graphene oxide (GO) and metal nanoparticles (MNPs) through the mediation of polyethyleneimine (PEI) molecules was reported.
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Affiliation(s)
- Wen Liang Fu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing, P.R. China
| | - Shu Jun Zhen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing, P.R. China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing, P.R. China
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22
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Controllably catalytic decomposition of acetaldehyde in solution by using gold nanoparticles released from sonoelectrochemically prepared gold microsheets. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.04.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Sun S, Wu P. Easy fabrication of macroporous gold films using graphene sheets as a template. ACS APPLIED MATERIALS & INTERFACES 2013; 5:3481-6. [PMID: 23521719 DOI: 10.1021/am400703v] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We demonstrate a facile new and environmentally friendly strategy to fabricate monolithic macroporous gold (MPG) films using graphene sheets as a sacrificial template. Gold nanoparticle (AuNP) decorated graphene sheets were prepared by a one-pot simultaneous reduction of graphene oxide (GO) and gold precursor (HAuCl4) by sodium citrate. Two thermal annealing methods, direct thermal annealing in air and a two-step thermal treatment (in N2 first and subsequently in air), were then employed to remove the template (graphene sheets), which can both produce macroporous structures, but with distinctly different morphologies. We additionally investigated the porosity evolution mechanism as well as the effect of graphene/Au weight ratio and annealing temperature on the nanoarchitecture. The two-step treatment has a more significant templating effect than direct thermal annealing to fabricate MPG films because of the existence of a preaggregation process of AuNPs assisted by graphene sheets in N2. Moreover, the resulting MPG films were found to exhibit excellent surface-enhanced Raman scattering (SERS) activity. Our method can be hopefully extended to the synthesis of other porous materials (such as Ag, Cu, Pt, and ceramic) and much wider applications.
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Affiliation(s)
- Shengtong Sun
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, People's Republic of China
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24
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Jen Cho S, Suri A, Mei X, Ouyang J. In situ deposition of gold nanostructures with well-defined shapes on unfunctionalized reduced graphene oxide through chemical reduction of a dry gold precursor with ethylene glycol vapor. RSC Adv 2013. [DOI: 10.1039/c2ra21854b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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25
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Adhikari B, Biswas A, Banerjee A. Graphene oxide-based hydrogels to make metal nanoparticle-containing reduced graphene oxide-based functional hybrid hydrogels. ACS APPLIED MATERIALS & INTERFACES 2012; 4:5472-5482. [PMID: 22970805 DOI: 10.1021/am301373n] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this study, stable supramolecular hydrogels have been obtained from the assembly of graphene oxide (GO) in presence of polyamines including tris(aminoethyl)amine, spermine, and spermidine [biologically active molecule]. One of these hydrogels has been well characterized by various techniques including field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray diffraction (XRD) study, and Raman spectroscopy. TEM and AFM studies of one of these hydrogels have revealed the presence of a network structure of cross-linked nanosheets. This suggests the supramolecular assembly of GO in the presence of polyamines using the acid-base type electrostatic interaction. In presence of a mild reducing agent (vitamin C), one of these GO hydrogels has been transformed into a reduced graphene oxide (RGO)-based hydrogel by a simple in situ reduction of GO sheets within the hydrogel matrix. Moreover, noble metal nanoparticle containing RGO based hybrid hydrogels have been obtained using in situ and simultaneous co-reduction of GO and noble metal precursors within the GO gel matrix. The elegance of this method is in situ, "green chemical" and simultaneous reduction of GO and metal salts within the hydrogel matrix to form RGO-based hybrid gel and concomitant stabilization of metal nanoparticles (MNPs) within the gel system. The nascently formed MNPs are homogeneously and uniformly distributed on the surface of the RGO nanosheets within the hybrid gel. Interestingly, this MNP containing RGO-based hybrid hydrogel matrix acts as a potential catalyst for the reduction of aromatic nitro to amino group. The catalyst (hybrid gel matrix) can be separated easily after the reaction and reused several times.
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Affiliation(s)
- Bimalendu Adhikari
- Department of Biological Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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26
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Guo L, Liu Q, Li G, Shi J, Liu J, Wang T, Jiang G. A mussel-inspired polydopamine coating as a versatile platform for the in situ synthesis of graphene-based nanocomposites. NANOSCALE 2012; 4:5864-5867. [PMID: 22945453 DOI: 10.1039/c2nr31547e] [Citation(s) in RCA: 137] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A facile and universal approach to prepare graphene-based nanocomposites by in situ nucleation and growth of diverse noble metals, metal oxides and semiconducting nanoparticles on the surface of RGO is proposed.
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Affiliation(s)
- Liangqia Guo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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27
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Xi Q, Chen X, Evans DG, Yang W. Gold nanoparticle-embedded porous graphene thin films fabricated via layer-by-layer self-assembly and subsequent thermal annealing for electrochemical sensing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:9885-9892. [PMID: 22670869 DOI: 10.1021/la301440k] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A uniform three-dimensional (3D) gold nanoparticle (AuNP)-embedded porous graphene (AuEPG) thin film has been fabricated by electrostatic layer-by-layer assembly of AuNPs and graphene nanosheets functionalized with bovine serum albumin and subsequent thermal annealing in air at 340 °C for 2 h. Scanning electron microscopy (SEM) investigations for the AuEPG film indicate that an AuNP was embedded in every pore of the porous graphene film, something that was difficult to achieve with previously reported methods. The mechanism of formation of the AuEPG film was initially explored. Application of the AuEPG film in electrochemical sensing was further demonstrated by use of H(2)O(2) as a model analyte. The AuEPG film-modified electrode showed improved electrochemical performance in H(2)O(2) detection compared with nonporous graphene-AuNP composite film-modified electrodes, which is mainly attributed to the porous structure of the AuEPG film. This work opens up a new and facile way for direct preparation of metal or metal oxide nanoparticle-embedded porous graphene composite films, which will enable exciting opportunities in highly sensitive electrochemical sensors and other advanced applications based on graphene-metal composites.
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Affiliation(s)
- Qian Xi
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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28
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Ou KL, Yang KH, Lo TY, Liu YC, Chen YZ. Strategy to controllably release gold nanoparticles from hexadecyltrimethylammonium bromide-capped gold microparticles. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.03.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Adhikari B, Biswas A, Banerjee A. Graphene oxide-based supramolecular hydrogels for making nanohybrid systems with Au nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:1460-1469. [PMID: 22133019 DOI: 10.1021/la203498j] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In the presence of a small amount of a proteinous amino acid (arginine/tryptophan/histidine) or a nucleoside (adenosine/guanosine/cytidine), graphene oxide (GO) forms supramolecular stable hydrogels. These hydrogels have been characterized by field-emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), X-ray diffraction (XRD) analysis, Raman spectroscopy, and rheology. The morphology of the hydrogel reveals the presence of nanofibers and nanosheets. This suggests the supramolecular aggregation of GO in the presence of an amino acid/nucleoside. Rheological studies of arginine containing a GO-based hydrogel show a very high G' value (6.058 × 10(4) Pa), indicating the rigid, solid-like behavior of this gel. One of these hydrogels (GO-tryptophan) has been successfully utilized for the in situ synthesis and stabilization of Au nanoparticles (Au NPs) within the hydrogel matrix without the presence of any other external reducing and stabilizing agents to make Au NPs containing the GO-based nanohybrid material. The Au NPs containing the hybrid hydrogel has been characterized by using UV/vis spectroscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM). In this study, gold salt (Au(3+)) has been bioreduced by the tryptophan within the hydrogel. This is a facile "green chemical" method of preparing the GO-based nanohybrid material within the hydrogel matrix. The significance of this method is the in situ reduction of gold salt within the gel phase, and this helps to decorate the nascently formed Au NPs almost homogeneously and uniformly on the surface of the GO nanosheets within the gel matrix.
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Affiliation(s)
- Bimalendu Adhikari
- Department of Biological Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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30
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31
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Nam B, Lee HJ, Goh H, Lee YB, San Choi W. Sandwich-like graphene nanocomposites armed with nanoneedles. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15026c] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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32
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33
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Ou KL, Yang KH, Liu YC, Hsu TC, Chen QY. New strategy to prepare enriched and small gold nanoparticles by sonoelectrochemical pulse methods. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.09.077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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34
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Beqa L, Fan Z, Singh AK, Senapati D, Ray PC. Gold nano-popcorn attached SWCNT hybrid nanomaterial for targeted diagnosis and photothermal therapy of human breast cancer cells. ACS APPLIED MATERIALS & INTERFACES 2011; 3:3316-24. [PMID: 21842867 PMCID: PMC3184205 DOI: 10.1021/am2004366] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Breast cancer presents greatest challenge in health care in today's world. The key to ultimately successful treatment of breast cancer disease is an early and accurate diagnosis. Current breast cancer treatments are often associated with severe side effects. Driven by the need, we report the design of novel hybrid nanomaterial using gold nano popcorn-attached single wall carbon nanotube for targeted diagnosis and selective photothermal treatment. Targeted SK-BR-3 human breast cancer cell sensing have been performed in 10 cancer cells/mL level, using surface enhanced Raman scattering of single walls carbon nanotube's D and G bands. Our data show that S6 aptamer attached hybrid nanomaterial based SERS assay is highly sensitive to targeted human breast cancer SK-BR-3 cell line and it will be able to distinguish it from other non targeted MDA-MB breast cancer cell line and HaCaT normal skin cell line. Our results also show that 10 min of photothermal therapy treatment by 1.5 W/cm(2) power, 785 nm laser is enough to kill cancer cells very effectively using S6 aptamer attached hybrid nanomaterials. Possible mechanisms for targeted sensing and operating principle for highly efficient photothermal therapy have been discussed. Our experimental results reported here open up a new possibility for using aptamers modified hybrid nanomaterial for reliable diagnosis and targeted therapy of cancer cell lines quickly.
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Affiliation(s)
- Lule Beqa
- Department of Chemistry, Jackson State University, Jackson, MS, USA
| | - Zhen Fan
- Department of Chemistry, Jackson State University, Jackson, MS, USA
| | | | - Dulal Senapati
- Department of Chemistry, Jackson State University, Jackson, MS, USA
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35
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Liu X, Cao L, Song W, Ai K, Lu L. Functionalizing metal nanostructured film with graphene oxide for ultrasensitive detection of aromatic molecules by surface-enhanced Raman spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2011; 3:2944-2952. [PMID: 21728327 DOI: 10.1021/am200737b] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) as a powerful analytical tool has gained extensive attention. Despite of many efforts in the design of SERS substrates, it remains a grand challenge for creating a general substrate that can detect diverse target analytes. Herein, we report our attempt to address this issue by constructing a novel metal-graphene oxide nanostructured film as SERS substrate. Taking advantages of the high affinity of graphene oxide (GO) toward aromatic molecules and the SERS property of nanostructured metal, this structure exhibits great potential for diverse aromatic molecules sensing, which is demonstrated by using crystal violet (CV) with positive charge, amaranth with negative charge, and neutral phosphorus triphenyl (PPh(3)) as model molecules.
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Affiliation(s)
- Xiaojuan Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
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