Protein Induces Layer-by-Layer Exfoliation of Transition Metal Dichalcogenides.
Here, we report a general and facile method for effective layer-by-layer exfoliation of transition metal dichalcogenides (TMDs) and graphite in water by using protein, bovine serum albumin (BSA) to produce single-layer nanosheets, which cannot be achieved using other commonly used bio- and synthetic...
| Publicado en: | Journal of the American Chemical Society Vol. 137; no. 19; pp. 6152 - 6156 |
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| Autores principales: | , , , , , , , , , , , , |
| Formato: | Artículo |
| Publicado: |
American Chemical Society
5/20/2015
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=103082596&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 103082596 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 5/20/2015 vid: 137 iid: 19 pid: 997 pub: American Chemical Society artinfo: ui: 103082596 10.1021/jacs.5b02780 ppf: 6152 ppct: 4 formats: tig: atl: Protein Induces Layer-by-Layer Exfoliation of Transition Metal Dichalcogenides. aug: au: Guijian Guan Shuangyuan Zhang Shuhua Liu Yongqing Cai Low, Michelle Choon Peng Teng In Yee Phang Yuan Cheng Koh Leng Duei Srinivasan, Bharathi Madurai Yuangang Zheng Yong-Wei Zhang Ming-Yong Han affil: Institute of High Performance Computing, A*STAR, 1 Fusionopolis Way, 138632 Singapore Institute of Materials Research and Engineering, A*STAR, 3 Research Link, 117602 Singapore su: Exfoliation (Materials science) Chemosurgery Transition metals Protein analysis Albumins sug: subj: Exfoliation (Materials science) Chemosurgery Transition metals Protein analysis Albumins ab: Here, we report a general and facile method for effective layer-by-layer exfoliation of transition metal dichalcogenides (TMDs) and graphite in water by using protein, bovine serum albumin (BSA) to produce single-layer nanosheets, which cannot be achieved using other commonly used bio- and synthetic polymers. Besides serving as an effective exfoliating agent, BSA can also function as a strong stabilizing agent against reaggregation of single-layer nanosheets for greatly improving their biocompatibility in biomedical applications. With significantly increased surface area, single-layer MoS2 nanosheets also exhibit a much higher binding capacity to pesticides and a much larger specific capacitance. The protein exfoliation process is carefully investigated with various control experiments and density functional theory simulations. It is interesting to find that the nonpolar groups of protein can firmly bind to TMD layers or graphene to expose polar groups in water, facilitating the effective exfoliation of single-layer nanosheets in aqueous solution. The present work will enable to optimize the fabrication of various 2D materials at high yield and large scale, and bring more opportunities to investigate the unique properties of 2D materials and exploit their novel applications. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2015 holdings: @attributes: islocal: N |
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