Photothermal conversion upon near-infrared irradiation of fluorescent carbon nanoparticles formed from carbonized polydopamine

被引：40

作者：

Kim, Sung Han ^{[1
]}

Sharker, Shazid Md. ^{[2
]}

Lee, Haeshin ^{[2
]}

In, Insik ^{[1
,3
]}

Lee, Kang Dae ^{[4
]}

Park, Sung Young ^{[1
,5
]}

机构：

[1] Korea Natl Univ Transportat, Dept IT Convergence, Chungju 380702, South Korea

[2] Korea Adv Inst Sci & Technol, Dept Chem, Daejeon 305701, South Korea

[3] Korea Natl Univ Transportat, Dept Polymer Sci & Engn, Chungju 380702, South Korea

[4] Kosin Univ, Coll Med, Dept Otolaryngol Head & Neck Surg, Busan 602702, South Korea

[5] Korea Natl Univ Transportat, Dept Chem & Biol Engn, Chungju 380702, South Korea

来源：

RSC ADVANCES | 2016年 / 6卷 / 66期

基金：

新加坡国家研究基金会;

关键词：

RESPONSIVE POLYMER; SURFACE-CHEMISTRY; GRAPHENE OXIDE; IN-VITRO; PH; THERAPY; LIGHT; DOPAMINE; DOTS;

D O I：

10.1039/c6ra08196g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fluorescence and photothermal conversion mediated by near-infrared radiation (NIR) is reported for carbonized polydopamine nanoparticles. Carbonized polydopamine demonstrated excitation-dependent fluorescence emission, together with NIR-responsive photothermal conversion properties. The concentration-dependent photothermal heating from carbonized fluorescent carbon nanoparticles-polydopamine (FNP-pDA) induces hyperthermal killing of both cancer cell lines and bacteria in vitro. Although most of the dopamine moieties of polydopamine become dehydrated upon carbonization, the remaining dopamine-hydroxyl groups can confer adhesive properties. These fluorescent coatings are compatible with many substrates, and the surface passivation of FNP-pDA with polyethylene glycol improves quantum yield and extends fluorescence lifetimes. The novel infrared-responsive photothermal and fluorescent carbon nanoparticles reported here show promise for a range of potential biomedical and research applications.

引用

页码：61482 / 61491

页数：10

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