Triphase Interface Synthesis of Plasmonic Gold Bellflowers as Near-Infrared Light Mediated Acoustic and Thermal Theranostics | Zendy

Peng Huang | Zendy; Pengfei Rong | Zendy; Jing Lin | Zendy; Wanwan Li | Zendy; Xuefeng Yan | Zendy; Molly Gu Zhang | Zendy; Liming Nie | Zendy; Gang Niu | Zendy; Jie Lü | Zendy; Wei Wang | Zendy; Xiaohong Chen | Zendy

Open Access

Triphase Interface Synthesis of Plasmonic Gold Bellflowers as Near-Infrared Light Mediated Acoustic and Thermal Theranostics

Author(s) -

Peng Huang,

Pengfei Rong,

Jing Lin,

Wanwan Li,

Xuefeng Yan,

Molly Gu Zhang,

Liming Nie,

Gang Niu,

Jie Lü,

Wei Wang,

Xiaohong Chen

Publication year - 2014

Publication title -

journal of the american chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/ja503115n

Subject(s) - chemistry , plasmon , infrared , interface (matter) , thermal , near infrared spectroscopy , nanotechnology , optoelectronics , molecule , optics , organic chemistry , meteorology , physics , materials science , gibbs isotherm

We present a novel gold bellflower (GBF) platform with multiple-branched petals, prepared by a liquid-liquid-gas triphase interface system, for photoacoustic imaging (PAI)-guided photothermal therapy (PTT). Upon near-infrared (NIR) laser irradiation, the GBFs, with strong NIR absorption, showed very strong PA response and an ultrahigh photothermal conversion efficiency (η, ∼74%) among the reported photothermal conversion agents. The excellent performance in PAI and PTT is mainly attributed to the unique features of the GBFs: (i) multiple-branched petals with an enhanced local electromagnetic field, (ii) long narrow gaps between adjacent petals that induce a strong plasmonic coupling effect, and (iii) a bell-shaped nanostructure that can effectively amplify the acoustic signals during the acoustic propagation. Besides the notable PTT and an excellent PAI effect, the NIR-absorbing GBFs may also find applications in NIR light-triggered drug delivery, catalysis, surface enhanced Raman scattering, stealth, antireflection, IR sensors, telecommunications, and the like.

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