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

机译:等离子体波金桔梗的三相界面合成作为近红外光介导的声学和热力学

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摘要

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 (n, ~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.
机译:我们提出了一种具有多分支花瓣的新型金桔梗(GBF)平台,该平台由液-液-气三相界面系统制备,用于光声成像(PAI)引导的光热疗法(PTT)。在近红外(NIR)激光辐照下,已报道的光热转化剂中具有强NIR吸收能力的GBF表现出非常强的PA响应和超高的光热转化效率(n,〜74%)。 PAI和PTT的出色性能主要归因于GBF的独特特征:(ⅰ)具有增强的局部电磁场的多分支花瓣,(ⅱ)相邻花瓣之间的长而窄的缝隙,引起强烈的等离子体耦合效应,以及(ⅲ)可以在声音传播过程中有效放大声音信号的钟形纳米结构。除了显着的PTT和出色的PAI效果外,吸收NIR的GBF还可以在NIR光触发的药物输送,催化,表面增强拉曼散射,隐形,抗反射,IR传感器,电信等领域找到应用。

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  • 来源
    《Journal of the American Chemical Society》 |2014年第23期|8307-8313|共7页
  • 作者单位

    Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States;

    Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States,State Key Laboratory for Powder Metallurgy, Central South University, Changsha, Hunan 410083, China,Department of Radiology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China;

    Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States;

    Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States;

    Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States;

    Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States;

    Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States,Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361005, China;

    Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States;

    Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States;

    Department of Radiology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China;

    Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, Bethesda, Maryland 20892, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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  • 入库时间 2022-08-18 03:11:03

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