251
|
Synthesis of magnetite/graphene oxide/chitosan composite and its application for protein adsorption. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:8-14. [DOI: 10.1016/j.msec.2014.08.064] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 07/16/2014] [Accepted: 08/29/2014] [Indexed: 12/12/2022]
|
252
|
Wu L, Ren J, Qu X. Target-responsive DNA-capped nanocontainer used for fabricating universal detector and performing logic operations. Nucleic Acids Res 2014; 42:gku858. [PMID: 25249622 PMCID: PMC4245965 DOI: 10.1093/nar/gku858] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 09/03/2014] [Accepted: 09/08/2014] [Indexed: 01/28/2023] Open
Abstract
Nucleic acids have become a powerful tool in nanotechnology because of their controllable diverse conformational transitions and adaptable higher-order nanostructure. Using single-stranded DNA probes as the pore-caps for various target recognition, here we present an ultrasensitive universal electrochemical detection system based on graphene and mesoporous silica, and achieve sensitivity with all of the major classes of analytes and simultaneously realize DNA logic gate operations. The concept is based on the locking of the pores and preventing the signal-reporter molecules from escape by target-induced the conformational change of the tailored DNA caps. The coupling of 'waking up' gatekeeper with highly specific biochemical recognition is an innovative strategy for the detection of various targets, able to compete with classical methods which need expensive instrumentation and sophisticated experimental operations. The present study has introduced a new electrochemical signal amplification concept and also adds a new dimension to the function of graphene-mesoporous materials hybrids as multifunctional nanoscale logic devices. More importantly, the development of this approach would spur further advances in important areas, such as point-of-care diagnostics or detection of specific biological contaminations, and hold promise for use in field analysis.
Collapse
Affiliation(s)
- Li Wu
- Laboratory of Chemical Biology, Division of Biological Inorganic Chemistry, State Key laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100039, China
| | - Jinsong Ren
- Laboratory of Chemical Biology, Division of Biological Inorganic Chemistry, State Key laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Xiaogang Qu
- Laboratory of Chemical Biology, Division of Biological Inorganic Chemistry, State Key laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| |
Collapse
|
253
|
Sun XY, Liu B, Sun YF, Yu Y. DNA-length-dependent fluorescent sensing based on energy transfer in self-assembled multilayers. Biosens Bioelectron 2014; 61:466-70. [DOI: 10.1016/j.bios.2014.05.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 05/05/2014] [Accepted: 05/07/2014] [Indexed: 12/23/2022]
|
254
|
Ng AMH, Kenry, Teck Lim C, Low HY, Loh KP. Highly sensitive reduced graphene oxide microelectrode array sensor. Biosens Bioelectron 2014; 65:265-73. [PMID: 25461168 DOI: 10.1016/j.bios.2014.10.048] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 10/06/2014] [Accepted: 10/20/2014] [Indexed: 11/30/2022]
Abstract
Reduced graphene oxide (rGO) has been fabricated into a microelectrode array (MEA) using a modified nanoimprint lithography (NIL) technique. Through a modified NIL process, the rGO MEA was fabricated by a self-alignment of conducting Indium Tin Oxide (ITO) and rGO layer without etching of the rGO layer. The rGO MEA consists of an array of 10μm circular disks and microelectrode signature has been found at a pitch spacing of 60μm. The rGO MEA shows a sensitivity of 1.91nAμm(-1) to dopamine (DA) without the use of mediators or functionalization of the reduced graphene oxide (rGO) active layer. The performance of rGO MEA remains stable when tested under highly resistive media using a continuous flow set up, as well as when subjecting it to mechanical stress. The successful demonstration of NIL for fabricating rGO microelectrodes on flexible substrate presents a route for the large scale fabrication of highly sensitive, flexible and thin biosensing platform.
Collapse
Affiliation(s)
- Andrew M H Ng
- Institute of Materials Research and Engineering, A⁎STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, Singapore; Graphene Research Centre, Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Kenry
- Graphene Research Centre, Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore; NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore 117576, Singapore; Department of Biomedical Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Chwee Teck Lim
- Graphene Research Centre, Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore; Department of Biomedical Engineering, National University of Singapore, Singapore 117576, Singapore; Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore
| | - Hong Yee Low
- Institute of Materials Research and Engineering, A⁎STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, Singapore; Engineering Product Development, Singapore University of Technology and Design, 20, Dover Drive, Singapore 138682, Singapore.
| | - Kian Ping Loh
- Graphene Research Centre, Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
| |
Collapse
|
255
|
Enhanced performance of multilayer graphene platelet film via three dimensional configuration with efficient exposure of graphitic edge planes. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2014.07.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
256
|
Zhang Y, Bai X, Wang X, Shiu KK, Zhu Y, Jiang H. Highly Sensitive Graphene–Pt Nanocomposites Amperometric Biosensor and Its Application in Living Cell H2O2 Detection. Anal Chem 2014; 86:9459-65. [DOI: 10.1021/ac5009699] [Citation(s) in RCA: 232] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yuanyuan Zhang
- State
Key Laboratory of Bioelectronics (Chien-Shiung Wu Laboratory), Southeast University, Nanjing 210096, P. R. China
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Xiaoyun Bai
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Xuemei Wang
- State
Key Laboratory of Bioelectronics (Chien-Shiung Wu Laboratory), Southeast University, Nanjing 210096, P. R. China
| | - Kwok-Keung Shiu
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Yanliang Zhu
- State
Key Laboratory of Bioelectronics (Chien-Shiung Wu Laboratory), Southeast University, Nanjing 210096, P. R. China
| | - Hui Jiang
- State
Key Laboratory of Bioelectronics (Chien-Shiung Wu Laboratory), Southeast University, Nanjing 210096, P. R. China
| |
Collapse
|
257
|
Ma Y, Zhao M, Cai B, Wang W, Ye Z, Huang J. 3D graphene foams decorated by CuO nanoflowers for ultrasensitive ascorbic acid detection. Biosens Bioelectron 2014; 59:384-8. [DOI: 10.1016/j.bios.2014.03.064] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 03/14/2014] [Accepted: 03/31/2014] [Indexed: 01/09/2023]
|
258
|
Norouzi P, Gupta VK, Larijani B, Ganjali MR, Faridbod F. A new Methimazole sensor based on nanocomposite of CdS NPs–RGO/IL–carbon paste electrode using differential FFT continuous linear sweep voltammetry. Talanta 2014; 127:94-9. [DOI: 10.1016/j.talanta.2014.03.061] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 03/22/2014] [Accepted: 03/25/2014] [Indexed: 11/27/2022]
|
259
|
Li J, Niu L, Zheng Z, Yan F. Photosensitive graphene transistors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:5239-73. [PMID: 24715703 DOI: 10.1002/adma.201400349] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 02/11/2014] [Indexed: 05/23/2023]
Abstract
High performance photodetectors play important roles in the development of innovative technologies in many fields, including medicine, display and imaging, military, optical communication, environment monitoring, security check, scientific research and industrial processing control. Graphene, the most fascinating two-dimensional material, has demonstrated promising applications in various types of photodetectors from terahertz to ultraviolet, due to its ultrahigh carrier mobility and light absorption in broad wavelength range. Graphene field effect transistors are recognized as a type of excellent transducers for photodetection thanks to the inherent amplification function of the transistors, the feasibility of miniaturization and the unique properties of graphene. In this review, we will introduce the applications of graphene transistors as photodetectors in different wavelength ranges including terahertz, infrared, visible, and ultraviolet, focusing on the device design, physics and photosensitive performance. Since the device properties are closely related to the quality of graphene, the devices based on graphene prepared with different methods will be addressed separately with a view to demonstrating more clearly their advantages and shortcomings in practical applications. It is expected that highly sensitive photodetectors based on graphene transistors will find important applications in many emerging areas especially flexible, wearable, printable or transparent electronics and high frequency communications.
Collapse
Affiliation(s)
- Jinhua Li
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China
| | | | | | | |
Collapse
|
260
|
He D, He X, Wang K, Yang X, Yang X, Li X, Zou Z. Nanometer-sized manganese oxide-quenched fluorescent oligonucleotides: an effective sensing platform for probing biomolecular interactions. Chem Commun (Camb) 2014; 50:11049-52. [PMID: 25098407 DOI: 10.1039/c4cc04573d] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We propose a novel template-assisted strategy to prepare nanometer-sized manganese oxide (nano-MnO2) by self-assembly of some MnO2 platelets and demonstrate its application as a new class of biosensing platform for probing DNA hybridization and aptamer-target interaction in a homogeneous solution.
Collapse
Affiliation(s)
- Dinggeng He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Institute of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, China.
| | | | | | | | | | | | | |
Collapse
|
261
|
Tian K, Prestgard M, Tiwari A. A review of recent advances in nonenzymatic glucose sensors. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 41:100-18. [DOI: 10.1016/j.msec.2014.04.013] [Citation(s) in RCA: 344] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 02/28/2014] [Accepted: 04/03/2014] [Indexed: 02/02/2023]
|
262
|
Surface plasmon resonance technique for directly probing the interaction of DNA and graphene oxide and ultra-sensitive biosensing. Biosens Bioelectron 2014; 58:374-9. [DOI: 10.1016/j.bios.2014.03.002] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 02/20/2014] [Accepted: 03/01/2014] [Indexed: 12/20/2022]
|
263
|
Woszczyna M, Winter A, Grothe M, Willunat A, Wundrack S, Stosch R, Weimann T, Ahlers F, Turchanin A. All-carbon vertical van der Waals heterostructures: non-destructive functionalization of graphene for electronic applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:4831-7. [PMID: 24862387 DOI: 10.1002/adma.201400948] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 04/08/2014] [Indexed: 05/24/2023]
Abstract
Non-destructive chemical functionalization of graphene for applications in electronic devices (e.g., sensors or transducers) is achieved via assembly of carbon nanomembrane (CNM)/single-layer graphene (SLG) van der Waals heterostructures. The CNMs are 1 nm-thick, dielectric molecular sheets terminated with functional amino groups. The structure and performance of heterostructured field-effect transistors (FETs) are characterized by photoelectron/Raman spectroscopy and by electric transport measurements in vacuum, ambient conditions and water.
Collapse
|
264
|
Liu JW, Zhang Y, Chen XW, Wang JH. Graphene oxide-rare earth metal-organic framework composites for the selective isolation of hemoglobin. ACS APPLIED MATERIALS & INTERFACES 2014; 6:10196-10204. [PMID: 24946899 DOI: 10.1021/am503298v] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Graphene oxide-La(BTC)(H2O)6 (H3BTC=1,3,5-benzenetricarboxylic acid) metal organic framework composites (LaMOF-GOn, n = 1-6, corresponding to the percentage of GO at 1, 2, 3, 4, 5, and 10%) are prepared through a simple and large-scale method at room temperature. The obtained composites are characterized by ATR-FTIR spectra, SEM, XRD, TGA, and N2 adsorption-desorption isotherm. The presence of GO significantly changes the morphologies of the composites from spindly rectangular rods to irregular thick blocks and increases their surface area from 14.8 cm(2) g(-1) (LaMOFs) to 26.6 cm(2) g(-1) (LaMOF-GO3), whereas at the same time, the crystalline structure of La(BTC)(H2O)6 is maintained. As a novel solid-phase adsorbent the LaMOF-GO composite exhibits outstanding adsorption properties for proteins. The strong hydrophobic interaction, especially π-π interaction between protein and the composite, is the main driving force for protein adsorption. In particular, highly selective isolation of hemoglobin (Hb) is achieved by using LaMOF-GO3 composite as sorbent in 4 mM B-R buffer containing 0.05 mol L(-1) NaCl at pH 8. The retained Hb could be effectively recovered with a 1 mM B-R buffer at pH 10, giving rise to a recovery of 63%. The practical applicability of the LaMOF-GO3 composite is demonstrated by the selective adsorption of Hb from human whole blood, and SDS-PAGE assays indicate that Hb could be selectively isolated with high purity from biological samples of complex matrixes.
Collapse
Affiliation(s)
- Jia-Wei Liu
- Research Center for Analytical Sciences, College of Sciences, Northeastern University , Shenyang 110819, China
| | | | | | | |
Collapse
|
265
|
Self-assembly and headgroup effect in nanostructured organogels via cationic amphiphile-graphene oxide composites. PLoS One 2014; 9:e101620. [PMID: 24983466 PMCID: PMC4077822 DOI: 10.1371/journal.pone.0101620] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 06/09/2014] [Indexed: 11/19/2022] Open
Abstract
Self-assembly of hierarchical graphene oxide (GO)-based nanomaterials with novel functions has received a great deal of attentions. In this study, nanostructured organogels based on cationic amphiphile-GO composites were prepared. The gelation behaviors of amphiphile-GO composites in organic solvents can be regulated by changing the headgroups of amphiphiles. Ammonium substituted headgroup in molecular structures in present self-assembled composites is more favorable for the gelation in comparison to pyridinium headgroup. A possible mechanism for headgroup effects on self-assembly and as-prepared nanostructures is proposed. It is believed that the present amphiphile-GO self-assembled system will provide an alternative platform for the design of new GO nanomaterials and soft matters.
Collapse
|
266
|
Ye N, Li J. Determination of dopamine, epinephrine, and norepinephrine by open-tubular capillary electrochromatography using graphene oxide molecularly imprinted polymers as the stationary phase. J Sep Sci 2014; 37:2239-47. [DOI: 10.1002/jssc.201400287] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Revised: 05/19/2014] [Accepted: 05/22/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Nengsheng Ye
- Department of Chemistry; Capital Normal University; Beijing P. R. China
| | - Jian Li
- Department of Chemistry; Capital Normal University; Beijing P. R. China
| |
Collapse
|
267
|
Li C, Shi G. Functional gels based on chemically modified graphenes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:3992-4012. [PMID: 24659376 DOI: 10.1002/adma.201306104] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 02/08/2014] [Indexed: 05/26/2023]
Abstract
Chemically modified graphene (CMG) materials have been extensively studied because of their unique structures, excellent properties, and potential applications in energy storage and conversion, catalysis, and environment remediation. However, the unique two-dimensional structure and amphiphilicity make CMG sheets easily restack into irregular aggregates, which greatly reduces their accessible surface area, and thereby deteriorates their performance in practical applications. To exploit their inherent properties fully, CMGs usually have to be fabricated or assembled into functional gels with desired three-dimensional (3D) interconnected porous microstructures. In this review, we summarize the recent achievements in the synthesis of CMG-based functional gels, including hydrogels, organogels, aerogels, and their composites. The mechanisms of gel formation and the applications of these functional gels will also be discussed.
Collapse
Affiliation(s)
- Chun Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, People's Republic of China
| | | |
Collapse
|
268
|
Eigler S, Hirsch A. Chemistry with Graphene and Graphene Oxide-Challenges for Synthetic Chemists. Angew Chem Int Ed Engl 2014; 53:7720-38. [DOI: 10.1002/anie.201402780] [Citation(s) in RCA: 635] [Impact Index Per Article: 63.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Indexed: 11/12/2022]
|
269
|
Eigler S, Hirsch A. Chemie an Graphen und Graphenoxid - eine Herausforderung für Synthesechemiker. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402780] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
270
|
Poh HL, Sofer Z, Luxa J, Pumera M. Transition metal-depleted graphenes for electrochemical applications via reduction of CO₂ by lithium. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:1529-1535. [PMID: 24344051 DOI: 10.1002/smll.201303002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Indexed: 06/03/2023]
Abstract
Graphene has immense potential for future applications in the electrochemical field, such as in supercapacitors, fuel cells, batteries, or sensors. Graphene materials for such applications are typically fabricated through a top-down approach towards oxidation of graphite to graphite oxide, with consequent exfoliation/reduction to yield reduced graphenes. Such a method allows the manufacture of graphenes in gram/kilogram quantities. However, graphenes prepared by this method can contain residual metallic impurities from graphite which dominate the electrochemical properties of the graphene formed. This dominance hampers their electrochemical application. The fabrication of transition metal-depleted graphene is described, using ultrapure CO₂ (with benefits of low cost and easy availability) and elemental lithium by means of reduction of CO₂ to graphene. This preparation method produces graphene of high purity with electrochemical behavior that is not dominated by any residual transition metal impurities which would dramatically alter its electrochemical properties. Wide application of such methodology in industry and research laboratories is foreseen, especially where graphene is used for electrochemical devices.
Collapse
Affiliation(s)
- Hwee Ling Poh
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | | | | | | |
Collapse
|
271
|
Banitaba MH, Davarani SSH, Ahmar H, Movahed SK. Application of a new fiber coating based on electrochemically reduced graphene oxide for the cold-fiber headspace solid-phase microextraction of tricyclic antidepressants. J Sep Sci 2014; 37:1162-9. [DOI: 10.1002/jssc.201301369] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 02/23/2014] [Accepted: 02/24/2014] [Indexed: 12/20/2022]
Affiliation(s)
| | | | - Hamid Ahmar
- Faculty of Chemistry; Shahid Beheshti University; Tehran Islamic Republic of Iran
| | | |
Collapse
|
272
|
Chang J, Zhou G, Christensen ER, Heideman R, Chen J. Graphene-based sensors for detection of heavy metals in water: a review. Anal Bioanal Chem 2014; 406:3957-75. [PMID: 24740529 DOI: 10.1007/s00216-014-7804-x] [Citation(s) in RCA: 145] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 03/16/2014] [Accepted: 03/31/2014] [Indexed: 12/30/2022]
Abstract
Graphene (G) is attracting significant attention because of its unique physical and electronic properties. The production of graphene through the reduction of graphene oxide (GO) is a low-cost method. The reduction of GO can further lead to electrically conductive reduced GO. These graphene-based nanomaterials are attractive for high-performance water sensors due to their unique properties, such as high specific surface areas, high electron mobilities, and exceptionally low electronic noise. Because of potential risks to the environment and human health arising from heavy-metal pollution in water, G-/GO-based water sensors are being developed for rapid and sensitive detection of heavy-metal ions. In this review, a general introduction to graphene and GO properties, as well as their syntheses, is provided. Recent advances in optical, electrochemical, and electrical detection of heavy-metal ions using graphene or GO are then highlighted. Finally, challenges facing G/GO-based water sensor development and outlook for future research are discussed.
Collapse
Affiliation(s)
- Jingbo Chang
- Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, WI, 53211, USA
| | | | | | | | | |
Collapse
|
273
|
Wu L, Li W, Li P, Liao S, Qiu S, Chen M, Guo Y, Li Q, Zhu C, Liu L. Powder, paper and foam of few-layer graphene prepared in high yield by electrochemical intercalation exfoliation of expanded graphite. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:1421-9. [PMID: 24323826 DOI: 10.1002/smll.201302730] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 10/13/2013] [Indexed: 05/27/2023]
Abstract
A facile and high-yield approach to the preparation of few-layer graphene (FLG) by electrochemical intercalation exfoliation (EIE) of expanded graphite in sulfuric acid electrolyte is reported. Stage-1 H2SO4-graphite intercalation compound is used as a key intermediate in EIE to realize the efficient exfoliation. The yield of the FLG sheets (<7 layers) with large lateral sizes (tens of microns) is more than 75% relative to the total amount of starting expanded graphite. A low degree of oxygen functionalization existing in the prepared FLG flakes enables them to disperse effectively, which contributes to the film-forming characteristics of the FLG flakes. These electrochemically exfoliated FLG flakes are integrated into several kinds of macroscopic graphene structures. Flexible and freestanding graphene papers made of the FLG flakes retain excellent conductivity (≈24,500 S m(-1)). Three-dimensional (3D) graphene foams with light weight are fabricated from the FLG flakes by the use of Ni foams as self-sacrifice templates. Furthermore, 3D graphene/Ni foams without any binders, which are used as supercapacitor electrodes in aqueous electrolyte, provide the specific capacitance of 113.2 F g(-1) at a current density of 0.5 A g(-1), retaining 90% capacitance after 1000 cycles.
Collapse
Affiliation(s)
- Liqiong Wu
- Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu, 215123, P. R. China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
274
|
Vilian AE, Chen SM, Huang LH, Ali MA, Al-Hemaid FM. Simultaneous determination of catechol and hydroquinone using a Pt/ZrO2-RGO/GCE composite modified glassy carbon electrode. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.01.092] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
275
|
Martín A, Escarpa A. Graphene: The cutting–edge interaction between chemistry and electrochemistry. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2013.12.008] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
276
|
High-Concentration Graphene Dispersions with Minimal Stabilizer: A Scaffold for Enzyme Immobilization for Glucose Oxidation. Chemistry 2014; 20:5752-61. [DOI: 10.1002/chem.201400098] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Indexed: 12/22/2022]
|
277
|
Lei S, Ge L, Najmaei S, George A, Kappera R, Lou J, Chhowalla M, Yamaguchi H, Gupta G, Vajtai R, Mohite AD, Ajayan PM. Evolution of the electronic band structure and efficient photo-detection in atomic layers of InSe. ACS NANO 2014; 8:1263-72. [PMID: 24392873 DOI: 10.1021/nn405036u] [Citation(s) in RCA: 206] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Atomic layers of two-dimensional (2D) materials have recently been the focus of extensive research. This follows from the footsteps of graphene, which has shown great potential for ultrathin optoelectronic devices. In this paper, we present a comprehensive study on the synthesis, characterization, and thin film photodetector application of atomic layers of InSe. Correlation between resonance Raman spectroscopy and photoconductivity measurements allows us to systematically track the evolution of the electronic band structure of 2D InSe as its thickness approaches few atomic layers. Analysis of photoconductivity spectra suggests that few-layered InSe has an indirect band gap of 1.4 eV, which is 200 meV higher than bulk InSe due to the suppressed interlayer electron orbital coupling. Temperature-dependent photocurrent measurements reveal that the suppressed interlayer interaction also results in more localized pz-like orbitals, and these orbitals couple strongly with the in-plane E' and E″ phonons. Finally, we measured a strong photoresponse of 34.7 mA/W and fast response time of 488 μs for a few layered InSe, suggesting that it is a good material for thin film optoelectronic applications.
Collapse
Affiliation(s)
- Sidong Lei
- Department of Materials Science and NanoEngineering, Rice University , Houston, Texas 77005, United States
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
278
|
Ishihara S, Labuta J, Van Rossom W, Ishikawa D, Minami K, Hill JP, Ariga K. Porphyrin-based sensor nanoarchitectonics in diverse physical detection modes. Phys Chem Chem Phys 2014; 16:9713-46. [PMID: 24562603 DOI: 10.1039/c3cp55431g] [Citation(s) in RCA: 189] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Porphyrins and related families of molecules are important organic modules as has been reflected in the award of the Nobel Prizes in Chemistry in 1915, 1930, 1961, 1962, 1965, and 1988 for work on porphyrin-related biological functionalities. The porphyrin core can be synthetically modified by introduction of various functional groups and other elements, allowing creation of numerous types of porphyrin derivatives. This feature makes porphyrins extremely useful molecules especially in combination with their other interesting photonic, electronic and magnetic properties, which in turn is reflected in their diverse signal input-output functionalities based on interactions with other molecules and external stimuli. Therefore, porphyrins and related macrocycles play a preeminent role in sensing applications involving chromophores. In this review, we discuss recent developments in porphyrin-based sensing applications in conjunction with the new advanced concept of nanoarchitectonics, which creates functional nanostructures based on a profound understanding of mutual interactions between the individual nanostructures and their arbitrary arrangements. Following a brief explanation of the basics of porphyrin chemistry and physics, recent examples in the corresponding fields are discussed according to a classification based on physical modes of detection including optical detection (absorption/photoluminescence spectroscopy and energy and electron transfer processes), other spectral modes (circular dichroism, plasmon and nuclear magnetic resonance), electronic and electrochemical modes, and other sensing modes.
Collapse
Affiliation(s)
- Shinsuke Ishihara
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan.
| | | | | | | | | | | | | |
Collapse
|
279
|
Wang JTW, Ball JM, Barea EM, Abate A, Alexander-Webber JA, Huang J, Saliba M, Mora-Sero I, Bisquert J, Snaith HJ, Nicholas RJ. Low-temperature processed electron collection layers of graphene/TiO2 nanocomposites in thin film perovskite solar cells. NANO LETTERS 2014; 14:724-30. [PMID: 24341922 DOI: 10.1021/nl403997a] [Citation(s) in RCA: 334] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The highest efficiencies in solution-processable perovskite-based solar cells have been achieved using an electron collection layer that requires sintering at 500 °C. This is unfavorable for low-cost production, applications on plastic substrates, and multijunction device architectures. Here we report a low-cost, solution-based deposition procedure utilizing nanocomposites of graphene and TiO2 nanoparticles as the electron collection layers in meso-superstructured perovskite solar cells. The graphene nanoflakes provide superior charge-collection in the nanocomposites, enabling the entire device to be fabricated at temperatures no higher than 150 °C. These solar cells show remarkable photovoltaic performance with a power conversion efficiency up to 15.6%. This work demonstrates that graphene/metal oxide nanocomposites have the potential to contribute significantly toward the development of low-cost solar cells.
Collapse
Affiliation(s)
- Jacob Tse-Wei Wang
- Department of Physics, Clarendon Laboratory, University of Oxford , Parks Road, Oxford OX1 3PU, United Kingdom
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
280
|
Su S, Fan J, Xue B, Yuwen L, Liu X, Pan D, Fan C, Wang L. DNA-conjugated quantum dot nanoprobe for high-sensitivity fluorescent detection of DNA and micro-RNA. ACS APPLIED MATERIALS & INTERFACES 2014; 6:1152-1157. [PMID: 24380365 DOI: 10.1021/am404811j] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Herein, we report a convenient approach to developing quantum dots (QDs)-based nanosensors for DNA and micro-RNA (miRNA) detection. The DNA-QDs conjugate was prepared by a ligand-exchange method. Thiol-labeled ssDNA is directly attached to the QD surface, leading to highly water-dispersible nanoconjugates. The DNA-QDs conjugate has the advantages of the excellent optical properties of QDs and well-controlled recognition properties of DNA and can be used as a nanoprobe to construct a nanosensor for nucleic acid detection. With the addition of a target nucleic acid sequence, the fluorescence intensity of QDs was quenched by an organic quencher (BHQ2) via Förster resonance energy transfer. This nanosensor can detect as low as 1 fM DNA and 10 fM miRNA. Moreover, the QDs-based nanosensor exhibited excellent selectivity. It not only can effectively distinguish single-base-mismatched and random nucleic sequences but also can recognize pre-miRNA and mature miRNA. Therefore, the nanosensor has high application potential for disease diagnosis and biological analysis.
Collapse
Affiliation(s)
- Shao Su
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Institute of Advanced Materials (IAM), and School of Materials Science and Engineering, Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210046, China
| | | | | | | | | | | | | | | |
Collapse
|
281
|
Lei W, Si W, Xu Y, Gu Z, Hao Q. Conducting polymer composites with graphene for use in chemical sensors and biosensors. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1160-6] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
282
|
Park S, Singh A, Kim S, Yang H. Electroreduction-Based Electrochemical-Enzymatic Redox Cycling for the Detection of Cancer Antigen 15-3 Using Graphene Oxide-Modified Indium–Tin Oxide Electrodes. Anal Chem 2014; 86:1560-6. [DOI: 10.1021/ac403912d] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Seonhwa Park
- Department
of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Amardeep Singh
- Department
of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
| | - Sinyoung Kim
- Department
of Laboratory Medicine, Yonsei University College of Medicine, Seoul 135-720, Korea
| | - Haesik Yang
- Department
of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 609-735, Korea
| |
Collapse
|
283
|
Prakash A, Bahadur D. Chemically derived defects in zinc oxide nanocrystals and their enhanced photo-electrocatalytic activities. Phys Chem Chem Phys 2014; 16:21429-37. [DOI: 10.1039/c4cp03583f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Schematic illustration of ZnO NCs synthesized in DMF (ZnO-1), NMP (ZnO-2) and DMSO (ZnO-3), their charge–discharge behavior as well as degradation performance.
Collapse
Affiliation(s)
- Anand Prakash
- Department of Metallurgical Engineering and Materials Science
- Indian Institute of Technology Bombay
- Mumbai - 400 076, India
| | - D. Bahadur
- Department of Metallurgical Engineering and Materials Science
- Indian Institute of Technology Bombay
- Mumbai - 400 076, India
| |
Collapse
|
284
|
Martín A, Hernández-Ferrer J, Vázquez L, Martínez MT, Escarpa A. Controlled chemistry of tailored graphene nanoribbons for electrochemistry: a rational approach to optimizing molecule detection. RSC Adv 2014. [DOI: 10.1039/c3ra44235g] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
|
285
|
Liu X, Cong R, Cao L, Liu S, Cui H. The structure, morphology and photocatalytic activity of graphene–TiO2 multilayer films and charge transfer at the interface. NEW J CHEM 2014. [DOI: 10.1039/c3nj01003a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
286
|
Pandikumar A, Soon How GT, See TP, Omar FS, Jayabal S, Kamali KZ, Yusoff N, Jamil A, Ramaraj R, John SA, Lim HN, Huang NM. Graphene and its nanocomposite material based electrochemical sensor platform for dopamine. RSC Adv 2014. [DOI: 10.1039/c4ra13777a] [Citation(s) in RCA: 229] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
In this review, the recent progress in the electrochemical sensing of dopamine with various graphene and their nanocomposite materials modified electrodes are presented.
Collapse
Affiliation(s)
- Alagarsamy Pandikumar
- Low Dimensional Materials Research Centre
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur, Malaysia
| | - Gregory Thien Soon How
- Low Dimensional Materials Research Centre
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur, Malaysia
| | - Teo Peik See
- Low Dimensional Materials Research Centre
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur, Malaysia
| | - Fatin Saiha Omar
- Low Dimensional Materials Research Centre
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur, Malaysia
| | - Subramaniam Jayabal
- Low Dimensional Materials Research Centre
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur, Malaysia
| | - Khosro Zangeneh Kamali
- Low Dimensional Materials Research Centre
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur, Malaysia
| | - Norazriena Yusoff
- Low Dimensional Materials Research Centre
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur, Malaysia
| | - Asilah Jamil
- Department of Chemistry
- Faculty of Science
- Universiti Putra Malaysia
- 43400 Serdang, Malaysia
| | - Ramasamy Ramaraj
- School of Chemistry
- Centre for Photoelectrochemistry
- Madurai Kamaraj University
- Madurai-625021, India
| | - Swamidoss Abraham John
- Centre for Nanoscience & Nanotechnology
- Department of Chemistry
- Gandhigram Rural University
- Gandhigram-624302, India
| | - Hong Ngee Lim
- Department of Chemistry
- Faculty of Science
- Universiti Putra Malaysia
- 43400 Serdang, Malaysia
- Functional Device Laboratory
| | - Nay Ming Huang
- Low Dimensional Materials Research Centre
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur, Malaysia
| |
Collapse
|
287
|
Hsu KC, Chen DH. Microwave-assisted green synthesis of Ag/reduced graphene oxide nanocomposite as a surface-enhanced Raman scattering substrate with high uniformity. NANOSCALE RESEARCH LETTERS 2014; 9:193. [PMID: 24808800 PMCID: PMC4005903 DOI: 10.1186/1556-276x-9-193] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 04/17/2014] [Indexed: 05/23/2023]
Abstract
A nanocomposite of silver nanoparticles/reduced graphene oxide (Ag/rGO) has been fabricated as a surface-enhanced Raman scattering (SERS) substrate owing to the large surface area and two-dimensional nanosheet structure of rGO. A facile and rapid microwave-assisted green route has been used for the formation of Ag nanoparticles and the reduction of graphene oxide simultaneously with L-arginine as the reducing agent. By increasing the cycle number of microwave irradiation from 1 and 4 to 8, the mean diameters of Ag nanoparticles deposited on the surface of rGO increased from 10.3 ± 4.6 and 21.4 ± 10.5 to 41.1 ± 12.6 nm. The SERS performance of Ag/rGO nanocomposite was examined using the common Raman reporter molecule 4-aminothiophenol (4-ATP). It was found that the Raman intensity of 4-ATP could be significantly enhanced by increasing the size and content of silver nanoparticles deposited on rGO. Although the Raman intensities of D-band and G-band of rGO were also enhanced simultaneously by the deposited Ag nanoparticles which limited the further improvement of SERS detection sensitivity, the detectable concentration of 4-ATP with Ag/rGO nanocomposite as the SERS substrate still could be lowered to be 10(-10) M and the enhancement factor could be increased to 1.27 × 10(10). Furthermore, it was also achievable to lower the relative standard deviation (RSD) values of the Raman intensities to below 5%. This revealed that the Ag/rGO nanocomposite obtained in this work could be used as a SERS substrate with high sensitivity and homogeneity.
Collapse
Affiliation(s)
- Kai-Chih Hsu
- Department of Chemical Engineering, National Cheng Kung University, Tainan 701, Taiwan
| | - Dong-Hwang Chen
- Department of Chemical Engineering, National Cheng Kung University, Tainan 701, Taiwan
| |
Collapse
|
288
|
Lounasvuori MM, Rosillo-Lopez M, Salzmann CG, Caruana DJ, Holt KB. Electrochemical characterisation of graphene nanoflakes with functionalised edges. Faraday Discuss 2014; 172:293-310. [DOI: 10.1039/c4fd00034j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Graphene nanoflakes (GNF) of diameter ca. 30 nm and edge-terminated with carboxylic acid (COOH) or amide functionalities were characterised electrochemically after drop-coating onto a boron-doped diamond (BDD) electrode. In the presence of the outer-sphere redox probe ferrocenemethanol there was no discernible difference in electrochemical response between the clean BDD and GNF-modified electrodes. When ferricyanide or hydroquinone were used as redox probes there was a marked difference in response at the electrode modified with COOH-terminated GNF in comparison to the unmodified BDD and amide-terminated GNF electrode. The response of the COOH-terminated GNF electrode was highly pH dependent, with the most dramatic differences in response noted at pH < 8. This pH range coincides with partial protonation of the carboxylic acid groups as determined by titration. The acid edge groups occupy a range of bonding environments and are observed to undergo deprotonation over a pH range ca. 3.7 to 8.3. The protonation state of the GNF influences the oxidation mechanism of hydroquinone and in particular the number of solution protons involved in the reaction mechanism. The voltammetric response of ferricyanide is very inhibited by the presence of COOH-terminated GNF at pH < 8, especially in low ionic strength solution. While the protonation state of the GNF is clearly a major factor in the observed response, the exact role of the acid group in the redox process has not been firmly established. It may be that the ferricyanide species is unstable in the solution environment surrounding the GNF, where dynamic protonation equilibria are at play, perhaps through disruption to ion pairing.
Collapse
Affiliation(s)
| | | | | | - Daren J. Caruana
- Department of Chemistry
- University College London
- London WC1H 0AJ, United Kingdom
| | - Katherine B. Holt
- Department of Chemistry
- University College London
- London WC1H 0AJ, United Kingdom
| |
Collapse
|
289
|
Niu L, Li M, Tao X, Xie Z, Zhou X, Raju APA, Young RJ, Zheng Z. Salt-assisted direct exfoliation of graphite into high-quality, large-size, few-layer graphene sheets. NANOSCALE 2013; 5:7202-7208. [PMID: 23824229 DOI: 10.1039/c3nr02173d] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report a facile and low-cost method to directly exfoliate graphite powders into large-size, high-quality, and solution-dispersible few-layer graphene sheets. In this method, aqueous mixtures of graphite and inorganic salts such as NaCl and CuCl2 are stirred, and subsequently dried by evaporation. Finally, the mixture powders are dispersed into an orthogonal organic solvent solution of the salt by low-power and short-time ultrasonication, which exfoliates graphite into few-layer graphene sheets. We find that the as-made graphene sheets contain little oxygen, and 86% of them are 1-5 layers with lateral sizes as large as 210 μm(2). Importantly, the as-made graphene can be readily dispersed into aqueous solution in the presence of surfactant and thus is compatible with various solution-processing techniques towards graphene-based thin film devices.
Collapse
Affiliation(s)
- Liyong Niu
- Nanotechnology Center, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | | | | | | | | | | | | | | |
Collapse
|
290
|
|
291
|
Zhu C, Zeng Z, Li H, Li F, Fan C, Zhang H. Single-Layer MoS2-Based Nanoprobes for Homogeneous Detection of Biomolecules. J Am Chem Soc 2013; 135:5998-6001. [PMID: 23570230 DOI: 10.1021/ja4019572] [Citation(s) in RCA: 697] [Impact Index Per Article: 63.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Changfeng Zhu
- School of Materials Science
and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Zhiyuan Zeng
- School of Materials Science
and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Hai Li
- School of Materials Science
and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Fan Li
- Laboratory of Physical Biology,
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Chunhai Fan
- Laboratory of Physical Biology,
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Hua Zhang
- School of Materials Science
and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| |
Collapse
|
292
|
Qu ZB, Zhou X, Gu L, Lan R, Sun D, Yu D, Shi G. Boronic acid functionalized graphene quantum dots as a fluorescent probe for selective and sensitive glucose determination in microdialysate. Chem Commun (Camb) 2013; 49:9830-2. [DOI: 10.1039/c3cc44393k] [Citation(s) in RCA: 161] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
293
|
Yu B, Feng J, Liu S, Zhang T. Preparation of reduced graphene oxide decorated with high density Ag nanorods for non-enzymatic hydrogen peroxide detection. RSC Adv 2013. [DOI: 10.1039/c3ra41755g] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|