Suppression of single-wall carbon nanotube redox reaction by adsorbed proteins
Suppression of single-wall carbon nanotube redox reaction by adsorbed proteins
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DOI：
10.7567/apex.11.075101
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发表时间：
2018-06
影响因子：
2.3
通讯作者：
T. Nakayama;Takeshi Tanaka;K. Shiraki;M. Hase;A. Hirano
中科院分区：
文献类型：
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作者：
T. Nakayama;Takeshi Tanaka;K. Shiraki;M. Hase;A. Hirano
单壁碳纳米管在生物领域有着广泛的应用。在生物系统中，蛋白质很容易被单壁碳纳米管吸附。然而，蛋白质对单壁碳纳米管的氧化还原反应等物理化学性质的影响却知之甚少。在本研究中，我们测量了在牛血清白蛋白等蛋白质存在下分散的单壁碳纳米管的吸收光谱和拉曼光谱，以观察蛋白质吸附的单壁碳纳米管的氧化还原反应。吸附的蛋白质通过在SWCNTs周围形成厚而致密的层来抑制氧化还原反应。我们的发现对于理解碳纳米管在生物系统中的行为是有用的。
Single-wall carbon nanotubes (SWCNTs) are widely used in biological applications. In biological systems, proteins readily adsorb to SWCNTs. However, little is known about the effects of proteins on the physicochemical properties of SWCNTs, such as their redox reaction. In this study, we measured the absorption and Raman spectra of SWCNTs dispersed in the presence of proteins such as bovine serum albumin to observe the redox reaction of the protein-adsorbed SWCNTs. The adsorbed proteins suppressed the redox reaction by forming thick and dense layers around the SWCNTs. Our findings are useful for understanding the behaviors of SWCNTs in biological systems.