Multifunctional three-dimensional nanodiamond-nanoporous alumina nanoarchitectures
Multifunctional three-dimensional nanodiamond-nanoporous alumina nanoarchitectures
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DOI：
10.1016/j.carbon.2014.04.025
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发表时间：
2014-08-01
期刊：
影响因子：
10.9
通讯作者：
Cervenka, Jiri
中科院分区：
文献类型：
--
作者：
Aramesh, Morteza;Fox, Kate;Cervenka, Jiri
杂化复合纳米材料提供了一个有吸引力的和多功能的材料平台，为许多新兴的纳米和生物医学应用提供了可能性，联合收割机不同的性能，这是不可能在一个单一的材料。在这项工作中，我们提出了新的混合金刚石和非晶类金刚石碳（DLC）涂层纳米多孔氧化铝材料，表现出多种功能，如高表面积，准有序的纳米孔结构，可调的表面化学和导电性，优良的生物，化学和耐腐蚀性的制造。这些多功能纳米杂化材料是使用等离子体诱导碳化方法制造的，该方法有效地改变了阳极氧化铝的纳米孔的表面和内部，在膜的整个外表面和内表面上产生均匀的DLC保护层。我们证明，内部和外部碳供应之间的相互作用是纳米孔中形成超薄sp（3）键合碳层的关键因素。这项研究带来了在有限的纳米空间中DLC生长机制的新见解，并开辟了在其他无机载体上制造混合，耐化学腐蚀和生物相容性碳涂层纳米结构的新途径。(C)2014爱思唯尔有限公司版权所有。
Hybrid composite nanomaterials provide an attractive and versatile material platform for numerous emerging nano- and biomedical applications by offering the possibility to combine diverse properties which are impossible to obtain within a single material. In this work, we present the fabrication of novel hybrid diamond and amorphous diamond-like carbon (DLC) coated nanoporous alumina materials that exhibit multiple functionalities, such as high surface area, quasi-ordered nanopore structure, tunable surface chemistry and electrical conductivity, excellent biological, chemical and corrosion resistance. These multifunctional nanohybrid materials are fabricated using the plasma-induced carbonization method that effectively modifies the surface and the inside of the nanopores of anodic alumina, producing a homogenous ultrathin DLC protecting layer over the whole external and internal surfaces of the membranes. We demonstrate that the interplay between internal and external carbon supply is a critical factor for the formation of the ultrathin sp(3)-bonded carbon layer in the nanopores. This study brings new insights in the DLC growth mechanisms in confined nanospaces and opens new avenues to fabricate hybrid, chemically resistant and biocompatible carbon-coated nanoarchitectures on other inorganic supports. (C) 2014 Elsevier Ltd. All rights reserved.