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Recently Published Articles

  1. Photoluminescence Architectures for Disease Diagnosis: From Graphene to Thin-Layer Transition Metal Dichalcogenides and Oxides

    Xiao-Peng He and He Tian

    Article first published online: 27 NOV 2015 | DOI: 10.1002/smll.201502516

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    Developments in photoluminescence architectures, constructed by simple supramolecular self-assembly between graphene and graphene-like thin-layer materials and labeled biomolecular probes, are summarized. These material composites show a diverse range of diagnostic as well as theranostic applications, providing a new generation of promising tools for the clinical use.

  2. Origin of Improved Optical Quality of Monolayer Molybdenum Disulfide Grown on Hexagonal Boron Nitride Substrate

    Yi Wan, Hui Zhang, Wei Wang, Bowen Sheng, Kun Zhang, Yilun Wang, Qingjun Song, Nannan Mao, Yanping Li, Xinqiang Wang, Jin Zhang and Lun Dai

    Article first published online: 25 NOV 2015 | DOI: 10.1002/smll.201502141

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    Monolayer MoS2 is synthesized on hexagonal boron nitride (h-BN) flakes with a simple, high-yield method. Monolayer MoS2 on h-BN exhibits improved optical quality. Combining the theoretical and experimental analysis, it is concluded that the enhanced photoluminescence and Raman intensities of monolayer MoS2 probably originate from the relatively weak doping effect from h-BN substrate rather than the optical interference effect.

  3. Long-Range Charge Transport in Adenine-Stacked RNA:DNA Hybrids

    Yuanhui Li, Juan M. Artés and Joshua Hihath

    Article first published online: 24 NOV 2015 | DOI: 10.1002/smll.201502399

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    An extremely important biological component, RNA:DNA can also be used to design nanoscale structures such as molecular wires. The conductance of single adenine-stacked RNA:DNA hybrids is rapidly and reproducibly measured using the break junction approach. The conductance decreases slightly over a large range of molecular lengths, suggesting that RNA:DNA can be used as an oligonucleotide wire.

  4. Atomically Precise Prediction of 2D Self-Assembly of Weakly Bonded Nanostructures: STM Insight into Concentration-Dependent Architectures

    Mohamed El Garah, Arezoo Dianat, Andrea Cadeddu, Rafael Gutierrez, Marco Cecchini, Timothy R. Cook, Artur Ciesielski, Peter J. Stang, Gianaurelio Cuniberti and Paolo Samorì

    Article first published online: 24 NOV 2015 | DOI: 10.1002/smll.201502957

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    A concentration-dependent scanning tunneling microscopy investigation of the self-assembly of C3-symmetric molecule at a graphite/solution interface, collaborated with density functional theory calculations reveals the formation of four distinct supramolecular motifs.

  5. Black Phosphorus (BP) Nanodots for Potential Biomedical Applications

    Hyun Uk Lee, So Young Park, Soon Chang Lee, Saehae Choi, Soonjoo Seo, Hyeran Kim, Jonghan Won, Kyuseok Choi, Kyoung Suk Kang, Hyun Gyu Park, Hee-Sik Kim, Ha Rim An, Kwang-Hun Jeong, Young-Chul Lee and Jouhahn Lee

    Article first published online: 20 NOV 2015 | DOI: 10.1002/smll.201502756

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    Black phosphorus (BP)-nanodots are prepared using a simple ultrasonication-assisted solution method. Compared to conventional semiconductor quantum dots, BP-nanodots present little in vitro cytotoxicity and further blue- and green-fluorescent bioimaging roles under excitations of UV and visible lights, showing potential as novel drug delivery carriers in biomedical applications.