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  1. How the Molecular Packing Affects the Room Temperature Phosphorescence in Pure Organic Compounds: Ingenious Molecular Design, Detailed Crystal Analysis, and Rational Theoretical Calculations

    Yujun Xie, Yuwei Ge, Qian Peng, Conggang Li, Qianqian Li and Zhen Li

    Version of Record online: 21 FEB 2017 | DOI: 10.1002/adma.201606829

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    Long-lived room temperature phosphorescence (RTP) with lifetime up to 0.748 s is realized in a pure organic single crystal. Compact face to face packing style in the crystal is found to favor long RTP lifetime and high photoluminescent intensity. This finding reveals that the molecular packing can affect optical properties significantly.

  2. Photonic Devices Out of Equilibrium: Transient Memory, Signal Propagation, and Sensing

    Thomas Heuser, Rémi Merindol, Sebastian Loescher, Aileen Klaus and Andreas Walther

    Version of Record online: 21 FEB 2017 | DOI: 10.1002/adma.201606842

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    Photonics out of equilibrium: The integration of biocatalytic, pH-feedback chemistry with a pH-responsive block copolymer photonic gel allows for new autonomous functionalities, such as transient self-erasing photonic memories with programmable lifetimes, as well as sustained signal propagation and sensing.

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    Localized and Controlled Delivery of Nitric Oxide to the Conventional Outflow Pathway via Enzyme Biocatalysis: Toward Therapy for Glaucoma

    Rona Chandrawati, Jason Y. H. Chang, Ester Reina-Torres, Coline Jumeaux, Joseph M. Sherwood, W. Daniel Stamer, Alexander N. Zelikin, Darryl R. Overby and Molly M. Stevens

    Version of Record online: 21 FEB 2017 | DOI: 10.1002/adma.201604932

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    Nitric oxide (NO) is able to lower intraocular pressure (IOP); however, its therapeutic effects on outflow physiology are location- and dose-dependent. An NO delivery platform that directly targets the resistance-generating region of the conventional outflow pathway and locally liberates a controlled dose of NO is reported. An increase in outflow facility (decrease in IOP) is demonstrated in a mouse model.

  4. In-Plane 2H-1T′ MoTe2 Homojunctions Synthesized by Flux-Controlled Phase Engineering

    Youngdong Yoo, Zachary P. DeGregorio, Yang Su, Steven J. Koester and James E. Johns

    Version of Record online: 21 FEB 2017 | DOI: 10.1002/adma.201605461

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    In-plane 2H-1T′ MoTe2 homojunctions are synthesized from Mo nanoislands by flux-controlled phase engineering. Few-layer 2H MoTe2 is formed with high Te flux, while few-layer 1T′ MoTe2 is obtained with low Te flux. Kelvin probe force microscopy confirms that in-plane 2H-1T′ MoTe2 homojunctions synthesized with medium flux have an abrupt potential difference of ≈100 mV across the junctions.

  5. Reconfigurable Microscale Frameworks from Concatenated Helices with Controlled Chirality

    Seog-Jin Jeon and Ryan C. Hayward

    Version of Record online: 21 FEB 2017 | DOI: 10.1002/adma.201606111

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    A method for the fabrication of microscale helices is reported and formation of reconfigurable frameworks from concatenated multiple helices with controlled chirality is demonstrated. Block angles, torsion angles, and lengths of each segment are reliably controlled using simple geometric design rules, enabling the formation of defined 3D shapes, thus opening new directions in responsive shape-programmable materials.

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