Propeller‐Like Nanorod‐Upconversion Nanoparticle Assemblies with Intense Chiroptical Activity and Luminescence Enhancement in Aqueous Phase
Propeller‐Like Nanorod‐Upconversion Nanoparticle Assemblies with Intense Chiroptical Activity and Luminescence Enhancement in Aqueous Phase
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DOI：
10.1002/adma.201601261
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发表时间：
2016-07
影响因子：
29.4
通讯作者：
Xiaoling Wu;Liguang Xu;Wei Ma;Liqiang Liu;Hua Kuang;N. Kotov;Chuanlai Xu
中科院分区：
文献类型：
--
作者：
Xiaoling Wu;Liguang Xu;Wei Ma;Liqiang Liu;Hua Kuang;N. Kotov;Chuanlai Xu
使用金纳米棒和上转换纳米颗粒制备了具有异常强烈的手性光学活性和强发光性的螺旋桨状纳米级组件。四聚体的圆二色性强度达到80.9 mdeg，g因子值为2.1×10(-2) 。水相中转换发光的增强因子高达21.3。还实现了具有两种模型的癌症生物标志物的阿摩尔生物分析，显示出早期疾病诊断和环境监测的潜力。
Propeller-like nanoscale assemblies with exceptionally intense chiroptical activity and strong luminescence are prepared using gold nanorods and upconversion nanoparticles. The circular dichroism intensity of the tetramer reached 80.9 mdeg, with g-factor value of 2.1 × 10(-2) . The enhancement factor of upconversion luminescence is as high as 21.3 in aqueous phase. Attomolar bioanalysis of a cancer biomarker with two model is also achieved, showing potential for early disease diagnosis and environmental monitoring.