Advanced Materials

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  1. Structural-Engineering Rationales of Gold Nanoparticles for Cancer Theranostics

    Wenwen Chen, Shaohua Zhang, Yangyang Yu, Huisheng Zhang and Qianjun He

    Version of Record online: 27 JUL 2016 | DOI: 10.1002/adma.201602080

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    Rational structures of gold nanoparticles (GNP) need to be engineered for personalized cancer theranostics. A series of structural-engineering rationales of GNPs for cancer theranostics is proposed through digging out the deep relationships between the structure and the properties of GNPs. These rationales can guide researchers to choose and design the optimal gold “bullet” for efficiently finding and killing a tumor.

  2. Metal–Organic-Framework-Derived Mesoporous Carbon Nanospheres Containing Porphyrin-Like Metal Centers for Conformal Phototherapy

    Shunhao Wang, Lu Shang, Linlin Li, Yingjie Yu, Chongwei Chi, Kun Wang, Jie Zhang, Run Shi, Heyun Shen, Geoffrey I. N. Waterhouse, Sijin Liu, Jie Tian, Tierui Zhang and Huiyu Liu

    Version of Record online: 27 JUL 2016 | DOI: 10.1002/adma.201602197

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    Mesoporous carbon nanospheres containing porphyrin-like metal centers (denoted as “PMCS”) are successfully synthesized by the pyrolysis of an imidazolate framework using a mesoporous silica-protection strategy. The PMCS allow infrared and photoacoustic imaging and synergetic photothermal therapy/photodynamic therapy derived from the porphyrin-like moieties, offering the possibility of real-time monitoring of therapeutic processes and image-guided precise conformal phototherapy. PMCS thus represent a novel multifunctional theranostic platform for improved treatment efficiencies.

  3. Gold-Nanosponge-Based Multistimuli-Responsive Drug Vehicles for Targeted Chemo-Photothermal Therapy

    Tingting Zheng, Guangfang Grace Li, Fei Zhou, Rong Wu, Jun-Jie Zhu and Hui Wang

    Version of Record online: 27 JUL 2016 | DOI: 10.1002/adma.201602486

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    Gold-nanosponge-based multistimuli-responsive drug vehicles are constructed for combined chemo-photothermal therapy with pinpointed drug delivery and release capabilities and minimized nonspecific systemic spread of drugs, remarkably enhancing the therapeutic efficiency while minimizing acute side effects.

  4. Atomic-Scale Origin of Long-Term Stability and High Performance of p-GaN Nanowire Arrays for Photocatalytic Overall Pure Water Splitting

    Md Golam Kibria, Ruimin Qiao, Wanli Yang, Idris Boukahil, Xianghua Kong, Faqrul Alam Chowdhury, Michel L. Trudeau, Wei Ji, Hong Guo, F. J. Himpsel, Lionel Vayssieres and Zetian Mi

    Version of Record online: 26 JUL 2016 | DOI: 10.1002/adma.201602274

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    Atomic-scale origin of the unusually high performance and long-term stability of wurtzite p-GaN oriented nanowire arrays is revealed. Nitrogen termination of both the polar inline image top face and the nonpolar inline image side faces of the nanowires is essential for long-term stability and high efficiency. Such a distinct atomic configuration ensures not only stability against (photo) oxidation in air and in water/electrolyte but as importantly provides the necessary overall reverse crystal polarization needed for efficient hole extraction in p-GaN.

  5. Microsecond Response in Organic Electrochemical Transistors: Exceeding the Ionic Speed Limit

    Jacob T. Friedlein, Mary J. Donahue, Sean E. Shaheen, George G. Malliaras and Robert R. McLeod

    Version of Record online: 26 JUL 2016 | DOI: 10.1002/adma.201602684

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    Organic electrochemical transistors (OECTs) are transistors that can have extrinsic transconductances as high as 400 S m−1, but they typically have response times on the order of 1 ms or longer. These response speeds are limited by ion transport. It is shown that OECTs can exceed the ionic response speed by a factor of 30 when operated in a high-speed bias regime.

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