Facile preparation of water-soluble multiwalled carbon nanotubes bearing phosphorylcholine groups for heat generation under near-infrared irradiation
Facile preparation of water-soluble multiwalled carbon nanotubes bearing phosphorylcholine groups for heat generation under near-infrared irradiation
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DOI：
10.1038/s41428-021-00495-x
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发表时间：
2021-05
期刊：
影响因子：
2.8
通讯作者：
T. Nguyen;M. Takai;K. Ishihara;Keigo Oyama;S. Fujii;S. Yusa
中科院分区：
文献类型：
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作者：
T. Nguyen;M. Takai;K. Ishihara;Keigo Oyama;S. Fujii;S. Yusa
本研究通过手工研磨的方法制备了羧酸功能化多壁碳纳米管(MWCNTs)与生物相容的聚(2-甲基丙烯酰氧乙基磷酰胆碱)(PMPC)之间的水溶性分子络合物。用这种简单的方法可以将多壁碳纳米管溶解在磷酸盐缓冲液中。MWCNTs的悬浮浓度随聚合物浓度和溶液pH值的增加而增大。在波长为808 nm的近红外辐射下，研究了络合物的产热。结果表明，分子络合物在近红外辐射下，多壁碳纳米管吸收了光，产生了热。溶液温度随MWCNT浓度的增加和辐照时间的延长而升高。
In the present study, water-soluble molecular complexes between carboxylic acid-functionalized multiwalled carbon nanotubes (MWCNTs) and biocompatible poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC) were prepared by hand grinding. MWCNTs could be solubilized in phosphate-buffered saline using this simple method. The suspended concentration of MWCNTs was found to increase with increasing polymer concentration and pH of the solution. Heat generation from the complexes was studied upon irradiation with near-infrared (NIR) radiation at a wavelength of 808 nm. The results demonstrated that MWCNTs absorbed light and generated heat when the molecular complex was irradiated by NIR. The solution temperature increased with increasing MWCNT concentration and irradiation time.