Nature Materials contents: March 2017 Volume 16 Number 3 pp 275 - 389

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Advertisement Latest highlight: Topological insulators: In control of current In the spotlight: Experimenting with maths and materials   AIMResearch - Highlighting research from the Advanced Institute for Materials Research (AIMR) in Japan, which promotes mathematics-materials science collaboration http://research.wpi-aimr.tohoku.ac.jp/  Register today for monthly email alerts! TABLE OF CONTENTS March 2017 Volume 16, Issue 3 Editorial Commentary Interview News and Views Progress Letters Articles Subscribe   Facebook   RSS   Recommend to library   Twitter   Focus Top Membrane materials for separations Membrane materials offer many practical advantages for purification and separation applications. In this Focus issue we highlight the most promising new membrane materials that offer competitive performance capabilities, and discuss how to transfer such materials and processes to industry. Membrane materials for separations Advertisement ELECTRON MICROSCOPY FOR MATERIALS - THE NEXT TEN YEARS Presented by: Zhejiang University | Nature | Nature Materials The conference will feature sessions on nanomaterials, functional materials, structural material, soft matter and biomaterials, and techniques development. May 27-29, 2016 | Zhenjiang, China  Register now!    Editorial Top The state of flux   p275 doi:10.1038/nmat4877 The development of new membrane materials for chemical separations is progressing rapidly, and their commercial success will require a more concerted effort from academia and industry. Commentary Top From water to organics in membrane separations   pp276 - 279 Ryan P. Lively and David S. Sholl doi:10.1038/nmat4860 Membrane materials provide economical means to achieve various separation processes — and their capabilities for processing organic fluids look set to expand significantly. Interview Top Membranes from academia to industry   pp280 - 282 Interview with Andrew Livingston & Richard Baker doi:10.1038/nmat4861 Andrew Livingston (Imperial College London) and Richard Baker (Membrane Technology and Research) talk to Nature Materials about the perks and pitfalls of membrane research and development, and how activities at the new Barrer Centre might lead to next-generation separation technologies. News and Views Top Porous materials: Lining up metal–organic frameworks   pp283 - 284 Neil R. Champness doi:10.1038/nmat4859 A new report demonstrates an innovative approach to aligning crystallites of metal–organic frameworks such that thin films are created with oriented channels — potentially overcoming one of the major barriers to application of these highly topical materials. See also: Article by Falcaro et al. Spintronics: Current-switched magnetic insulator   pp284 - 285 Jörg Wunderlich doi:10.1038/nmat4862 Exploiting the spin Hall effect acting on magnetic oxides outlines an unprecedented path towards low-power, non-volatile spintronics devices. See also: Article by Avci et al. Glasses: Achieving long phonon lifetimes   pp285 - 286 Maxim Goryachev and Michael E. Tobar doi:10.1038/nmat4867 Spectral hole burning is now demonstrated with phonons in amorphous systems, leading to highly reduced phonon dissipation and, therefore, long phonon lifetimes. See also: Article by Behunin et al. Bottom-up synthesis: Wired metal–organic chalcogenides   pp287 - 288 Fernando Rey and José L. Jordá doi:10.1038/nmat4850 Self-assembled transition metal–organic chalcogenide nanowires pave the way to a new family of electron conducting materials with tunable properties. See also: Article by Yan et al. Material Witness: Metallic hydrogen in the spotlight   p288 Philip Ball doi:10.1038/nmat4872 Nature Materials JOBS of the week Postdoctoral Positions In Atomistic Simulations Of Advanced Materials Czech Technical University in Prague Full Professorship (W3) in “Nanostructures and -materials” Rostock University Senior Research Scientist Positions Pacific Northwest National Laboratory (PNNL) Invitation to Young Scholars for PEIYANG Forum, Tianjin University Faculty Recruitment Tianjin University (TJU) PhD Studentships Ecole Polytechnique More Science jobs from Nature Materials EVENT Smart Materials and Surfaces Europe 2017 26.04.17 Courbevoie, France More science events from Progress Top Materials for next-generation molecularly selective synthetic membranes   pp289 - 297 William J. Koros and Chen Zhang doi:10.1038/nmat4805 Liquid and gas purification using membrane materials permits a wide range of critical industrial processes, and here it is discussed how they might achieve molecular selectivity. Letters Top Valley photonic crystals for control of spin and topology   pp298 - 302 Jian-Wen Dong, Xiao-Dong Chen, Hanyu Zhu, Yuan Wang and Xiang Zhang doi:10.1038/nmat4807 A theoretically proposed photonic crystal design with valley-dependent spin-split bulk bands allows for the independent control of valley and topology in a single system. Instrumented cardiac microphysiological devices via multimaterial three-dimensional printing   pp303 - 308 Johan U. Lind, Travis A. Busbee, Alexander D. Valentine, Francesco S. Pasqualini, Hongyan Yuan et al. doi:10.1038/nmat4782 Heart-on-a-chip devices with integrated strain gauges for direct readout of tissue contractile strength allow for multiplexed drug-dose experiments and studies of functional maturation of cardiac tissue. Articles Top Current-induced switching in a magnetic insulator   pp309 - 314 Can Onur Avci, Andy Quindeau, Chi-Feng Pai, Maxwell Mann, Lucas Caretta et al. doi:10.1038/nmat4812 Spin-current-induced magnetization reversal of a perpendicularly magnetized thulium iron garnet film is reported. The spin current is driven by the current flowing through a Pt overlayer. See also: News and Views by Wunderlich Engineering dissipation with phononic spectral hole burning   pp315 - 321 R. O. Behunin, P. Kharel, W. H. Renninger and P. T. Rakich doi:10.1038/nmat4819 Acoustically opaque glass can regain its transparency through coherently driven fields. Combining experiments and theory, the phononic saturation process is presented as analogous to the spectral hole burning process. See also: News and Views by Goryachev & Tobar Domain-wall conduction in ferroelectric BiFeO3 controlled by accumulation of charged defects   pp322 - 327 Tadej Rojac, Andreja Bencan, Goran Drazic, Naonori Sakamoto, Hana Ursic et al. doi:10.1038/nmat4799 Domain walls in ferroelectrics are known to be conductive, but details of the precise mechanism are elusive. Atomic-scale structural and chemical characterization of domain walls in BiFeO3 now reveals a build-up of charged defects. Entropic contributions enhance polarity compensation for CeO2(100) surfaces   pp328 - 334 Marçal Capdevila-Cortada and Núria López doi:10.1038/nmat4804 Polar terminations are crucial to control the properties of surfaces, but they are intrinsically unstable. Entropic configurational contributions are now demonstrated to have a predominant role in the stability of CeO2(100) surface termination. A multifunctional biphasic water splitting catalyst tailored for integration with high-performance semiconductor photoanodes   pp335 - 341 Jinhui Yang, Jason K. Cooper, Francesca M. Toma, Karl A. Walczak, Marco Favaro et al. doi:10.1038/nmat4794 In photosynthesis the oxidation of water is a requirement for providing sufficient protons and electrons for fuel formation. A biphasic water splitting catalyst tailored for integration with high-performance semiconductor photoanodes is now reported. Centimetre-scale micropore alignment in oriented polycrystalline metal–organic framework films via heteroepitaxial growth   pp342 - 348 Paolo Falcaro, Kenji Okada, Takaaki Hara, Ken Ikigaki, Yasuaki Tokudome et al. doi:10.1038/nmat4815 Heteroepitaxial growth using aligned crystalline substrates allows extended metal–organic framework crystal growth oriented relative to the substrate See also: News and Views by Champness Hybrid metal–organic chalcogenide nanowires with electrically conductive inorganic core through diamondoid-directed assembly   pp349 - 355 Hao Yan, J. Nathan Hohman, Fei Hua Li, Chunjing Jia, Diego Solis-Ibarra et al. doi:10.1038/nmat4823 The use of diamondoids as structure-directing agents allows the synthesis of metal–organic chalcogenide nanowires with an inorganic core having a three-atom cross-section and band-like conductivity. See also: News and Views by Rey & Jordá High operational and environmental stability of high-mobility conjugated polymer field-effect transistors through the use of molecular additives   pp356 - 362 Mark Nikolka, Iyad Nasrallah, Bradley Rose, Mahesh Kumar Ravva, Katharina Broch et al. doi:10.1038/nmat4785 Small molecular additives incorporated into films of conjugate polymers are shown to fill the voids present in the polymer network. As a result, the stability of organic transistors based on these materials is significantly improved. Reducing the efficiency–stability–cost gap of organic photovoltaics with highly efficient and stable small molecule acceptor ternary solar cells   pp363 - 369 Derya Baran, Raja Shahid Ashraf, David A. Hanifi, Maged Abdelsamie, Nicola Gasparini et al. doi:10.1038/nmat4797 Ternary organic blends using two non-fullerene acceptors are shown to improve the efficiency and stability of low-cost solar cells based on P3HT and of high-performance photovoltaic devices based on low-bandgap donor polymers. Collagen intrafibrillar mineralization as a result of the balance between osmotic equilibrium and electroneutrality   pp370 - 378 Li-na Niu, Sang Eun Jee, Kai Jiao, Lige Tonggu, Mo Li et al. doi:10.1038/nmat4789 A new model for collagen intrafibrillar mineralization shows the need for a balance between osmotic equilibrium and electroneutrality to establish Gibbs–Donnan equilibrium. MicroRNA-21 preserves the fibrotic mechanical memory of mesenchymal stem cells   pp379 - 389 Chen Xi Li, Nilesh P. Talele, Stellar Boo, Anne Koehler, Ericka Knee-Walden et al. doi:10.1038/nmat4780 Mesenchymal stem cells primed on soft silicone substrates suppress fibrogenesis and are desensitized against subsequent mechanical activation in vitro and in vivo. Advertisement NPG Asia Materials Review Collection 2015-2016 features key reviews written by prominent scientists and cover cutting-edge areas of materials research. Read all the featured open access articles online >>   Top Natureevents is a fully searchable, multi-disciplinary database designed to maximise exposure for events organisers. The contents of the Natureevents Directory are now live. The digital version is available here. Find the latest scientific conferences, courses, meetings and symposia on natureevents.com. 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