| CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES |
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Structural characteristics of surface-functionalized nitrogen-doped diamond-like carbon films and effective adjustment to cell attachment |
| Liu Ai-Ping (刘爱萍)a b, Liu Min (刘敏)a, Yu Jian-Can (郁建灿)a, Qian Guo-Dong (钱国栋)a, Tang Wei-Hua (唐为华)c |
a State Key Laboratory of Silicon Materials, Department of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China;
b Center for Optoelectronics Materials and Devices, Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, China;
c State Key Laboratory of Information Photonics and Optical Communication, Beijing University Posts and Telecommunications, Beijing 100876, China |
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Abstract Nitrogen-doped diamond-like carbon (DLC:N) films prepared by the filtered cathodic vacuum arc technology are functionalized with various chemical molecules including dopamine (DA), 3-Aminobenzeneboronic acid (APBA), and adenosine triphosphate (ATP), and the impacts of surface functionalities on the surface morphologies, compositions, microstructures, and cell compatibility of the DLC:N films are systematically investigated. We demonstrate that the surface groups of DLC:N have a significant effect on the surface and structural properties of the film. The activity of PC12 cells depends on the particular type of surface functional groups of DLC:N films regardless of surface roughness and wettability. Our research offers a novel way for designing functionalized carbon films as tailorable substrates for biosensors and biomedical engineering applications.
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Received: 20 November 2014
Revised: 02 December 2014
Accepted manuscript online:
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PACS:
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68.55.-a
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(Thin film structure and morphology)
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68.37.-d
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(Microscopy of surfaces, interfaces, and thin films)
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61.05.cj
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(X-ray absorption spectroscopy: EXAFS, NEXAFS, XANES, etc.)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51272237, 51272231, and 51010002) and the China Postdoctoral Science Foundation (Grant Nos. 2012M520063, 2013T60587, and Bsh1201016). |
Corresponding Authors:
Qian Guo-Dong
E-mail: gdqian@zju.edu.cn
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| About author: 68.55.-a; 68.37.-d; 61.05.cj |
Cite this article:
Liu Ai-Ping (刘爱萍), Liu Min (刘敏), Yu Jian-Can (郁建灿), Qian Guo-Dong (钱国栋), Tang Wei-Hua (唐为华) Structural characteristics of surface-functionalized nitrogen-doped diamond-like carbon films and effective adjustment to cell attachment 2015 Chin. Phys. B 24 056804
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