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Facile preparation of water-soluble multiwalled carbon nanotubes bearing phosphorylcholine groups for heat generation under near-infrared irradiation
Polymer Journal ( IF 2.8 ) Pub Date : 2021-05-17 , DOI: 10.1038/s41428-021-00495-x
Thi Lien Nguyen , Madoka Takai , Kazuhiko Ishihara , Keigo Oyama , Syuji Fujii , Shin-ichi Yusa

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.



中文翻译:

简便地制备带有磷胆碱基团的水溶性多壁碳纳米管,以在近红外辐射下产生热量

在本研究中,通过手动研磨制备了羧酸官能化的多壁碳纳米管(MWCNT)与生物相容性聚(2-甲基丙烯酰氧基乙基磷酰胆碱)(PMPC)之间的水溶性分子配合物。MWCNTs可以使用这种简单的方法溶解在磷酸盐缓冲液中。发现MWCNT的悬浮浓度随着溶液中聚合物浓度和pH的增加而增加。在用波长为808 nm的近红外(NIR)辐射辐照下,研究了配合物产生的热量。结果表明,当分子复合物被近红外光照射时,多壁碳纳米管吸收光并产生热量。溶液温度随着MWCNT浓度和辐照时间的增加而增加。

更新日期:2021-05-17
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