Defect-Induced Near-Infrared Photoluminescence of Single-Walled Carbon Nanotubes Treated with Polyunsaturated Fatty Acids.
Defect-Induced Near-Infrared Photoluminescence of Single-Walled Carbon Nanotubes Treated with Polyunsaturated Fatty Acids.
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DOI：
10.1021/jacs.7b00390
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发表时间：
2017-04-05
影响因子：
15
通讯作者：
Star A
中科院分区：
文献类型：
--
作者：
Chiu CF;Saidi WA;Kagan VE;Star A
单壁碳纳米管（SWCNT）已被纳入生物医学领域的许多新兴应用，包括化学传感、生物成像、药物输送和光热疗法。为了克服固有的疏水性并提高其生物相容性，原始的单壁碳纳米管通常涂有表面活性剂、聚合物、DNA、蛋白质或脂质。在本文中，我们报告了多不饱和脂肪酸（PUFA）对单壁碳纳米管光致发光的影响。在 PUFA 存在的情况下，观察到 SWCNT 带隙发射 (E11) 的减少和新的红移发射 (E11−)。我们将单壁碳纳米管光致发光的变化归因于脂质氢过氧化物通过光氧化形成含氧缺陷。观察到的单壁碳纳米管近红外发射的变化对于理解单壁碳纳米管和脂质生物冠之间的相互作用非常重要。我们的结果还表明，光激发的单壁碳纳米管可以与脂氧合酶类似地催化脂质过氧化。
Single-walled carbon nanotubes (SWCNTs) have been incorporated in many emerging applications in the biomedical field including chemical sensing, biological imaging, drug delivery, and photothermal therapy. To overcome inherent hydrophobicity and improve their biocompatibility, pristine SWCNTs are often coated with surfactants, polymers, DNA, proteins, or lipids. In this paper, we report the effect of polyunsaturated fatty acids (PUFAs) on SWCNT photoluminescence. A decrease in the SWCNT bandgap emission (E11) and a new red-shifted emission (E11−) were observed in the presence of PUFAs. We attribute the change in SWCNT photoluminescence to the formation of oxygen-containing defects by lipid hydroperoxides through photo-oxidation. The observed changes in near-infrared emission of SWCNTs are important for understanding the interaction between SWCNTs and lipid biocorona. Our results also indicate that photo-excited SWCNTs can catalyze lipid peroxidation similarly to lipoxygenases.
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影响因子：
56.9
作者：
O'Connell, MJ;Bachilo, SM;Smalley, RE
通讯作者：
Smalley, RE
DOI：
10.1016/0005-2760(94)90020-5
发表时间：
1994-07-14
期刊：
BIOCHIMICA ET BIOPHYSICA ACTA-LIPIDS AND LIPID METABOLISM
影响因子：
--
作者：
LOIDLSTAHLHOFEN, A;HANNEMANN, K;SPITELLER, G
通讯作者：
SPITELLER, G
影响因子：
17.1
作者：
Ma, Xuedan;Adamska, Lyudmyla;Htoon, Han
通讯作者：
Htoon, Han
影响因子：
3.7
作者：
Kwon, Hyejin;Kim, Mijin;Wang, YuHuang
通讯作者：
Wang, YuHuang
影响因子：
56.9
作者：
Bachilo, SM;Strano, MS;Weisman, RB
通讯作者：
Weisman, RB