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高分子 POLYMERS 62巻11月号
Digest for English ReadersDigest for English Readers 658Hot Topics in Polymer Science in SPSJ 661COVER STORYExploring Polymers with Cutting-EdgeVisualization Techniques“One Picture is Worth a Thousand Words”: Accuratevisualization is becoming more and more important fordeeper understanding of structures and dynamics ofpolymers. Recent advances in the technologies of variousmicroscopy, synchrotron radiation, and neutron beamsallow us to precisely“observe”not only structures butalso interactions of polymer chains from single moleculeto complex and higher-order entities. In addition,integration of these visualization techniques with large& multi-scale simulations can provide new insightsinto polymer physics. In this edition, we introduce avariety of cutting-edge visualization techniques and theirapplications to explore functions of polymeric materials.Editors: H. YOSHIDA, FUKUSHIMA, and YOKOYAMACommentaryObserving Polymers 662Hirokazu HASEGAWADoctor of PhylosophyResearch Administration Center,Graduate School of Engineering, Kyoto UniversityDirector/Senior Research Administratorwww.rac.t.kyoto-u.ac.jp/jaabout innovations that would advance drug discovery,the understanding of disease mechanisms, design oftherapeutic strategies, and personalized medicine. Recently,3D structure analysis methods for single molecules insolutions using nanopores have been developed, wherebysingle-molecule structures are determined by changes inionic currents that pass through nanopores. In this study,we review recent advances in the single-molecule analysisof DNA molecules using solid-state nanopores.Keywords: Single Molecules / Nanopores / Ionic CurrentsRecent Advances in TomographyRecent Advances in Multi-Scale TomographicTechniques in Polymer Research666Hiroshi JINNAIDoctor of EngineeringJST ERATO Takahara Soft Interfaces Project,CE80, Kyushu University / Group Leader(Research Manager)Institute for Materials Chemistry and Engineering(IMCE), Kyushu University / Research Professorhjinnai@cstf.kyushu-u.ac.jphttp://muse.ifoc.kyushu-u.ac.jp/JLAB/JINNAI_LABORATORY/Welcome.htmlThis article summarizes recent advances in an emergingthree-dimensional (3D) imaging technique, electrontomography. We will put particular emphasis on electrontomography for mm-size volume data with the spatialresolution of the order of 10 nm. This technique providesnew insights into“meso-scale”structural information thathas been lost over the past several years.Keywords: Electron Tomography / Scanning ElectronMicroscopy / Meso-Scale Structural Observations / Three-Dimensional Image AnalysisCOVER STORY: Highlight ReviewsHow Complex is a Single DNA Molecule in an 663Aqueous Solution?Masateru TANIGUCHIPh. D. (Degree in Engineering)The Institute of Scientific and Industrial Rsearch,Osaka UniversityProfessortaniguti@sanken.osaka-u.ac.jpwww.bionano.sanken.osaka-u.ac.jp/Information regarding 3D protein structure is essentialfor drug discovery, and detailed 3D structures can onlybe obtained by analyzing crystal structures, particularlyby using the X-ray diffraction method on crystals. Singlemoleculestructural analysis technology, which does notrequire crystals, will allow high-throughput investigation ofthe relationship between proteins and diseases and bringNew Developments of Structural Analysis on 669Polymer Composite using Quantum BeamHiroyuki KISHIMOTOMaterial Dept. III, Material Research &Development HQ.,Sumitomo Rubber Industries, LTD.Managerh-kishimoto.az@srigroup.co.jpwww.srigroup.co.jp/The hierarchical structure among wide spatiotemporalscale formed in polymer composeites relates to variousfunctions. Material research with a quantum beamproduces new knowledes in the process of functionalmaterial developments. In this article, I introduce thespatiotemporal structural analysis of polymer compositesusing a quantum beam.Keywords: Synchrotron Radiation / SAXS / X-ray Imaging /XPCS / Dynamics / Polymer Composite658 c2013 The Society of Polymer Science, Japan高分子62巻11月号(2013年)