SYNCHROTRON X-RAY AND NEUTRON FIBER DIFFRACTION STUDIES OF CELLULOSE POLYMORPHS

机译：纤维素多聚体的同步辐射X射线和中子纤维衍射研究

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We are determining the precise crystal structures and hydrogen-bonding systems of naturally occurring and processed cellulose polymorphs by fiber diffraction. X-rays are used to determine the positions of carbon and oxygen atoms. Neutrons, in combination with isotopic substitution of labile hydrogen atoms in the fibers by deuterium, are used to determine the positions of hydrogen atoms involved in hydrogen bonding. Methods have been developed for obtaining oriented polycrystalline fibers that diffract X-rays and neutrons to atomic resolution. For the first time, data have been collected from naturally occurring pure cellulose la isolated from Glaucocystis (a microalgae) and from pure cellulose ip, isolated from Tunicate (a sea creature). We have also collected data from the polymorphs resulting from cellulose processing: II (both mercerized and regenerated), III(I) and III(II).

机译：我们正在通过纤维衍射确定天然存在和加工的纤维素多晶型物的精确晶体结构和氢键系统。 X射线用于确定碳原子和氧原子的位置。中子结合氘中纤维中不稳定氢原子的同位素取代，可用于确定参与氢键结合的氢原子的位置。已经开发出用于获得取向的多晶纤维的方法，该多晶纤维将X射线和中子衍射到原子分辨率。首次收集了从青藻（微藻）中分离出的天然存在的纯纤维素1a和从Tunicate（海洋生物）中分离出的纯纤维素中的数据。我们还从纤维素加工产生的多晶型物中收集了数据：II（丝光和再生），III（I）和III（II）。

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《Advances in X-ray analysis (ICDD2001)》|2001年|p.385-390|共6页
会议地点 Steamboat Springs CO(US);Steamboat Springs CO(US);Steamboat Springs CO(US)
作者
Yoshiharu Nishiyama; Henri Chanzy; Masahisa Wada; Junji Sugiyama; Karim Mazeau; Trevor Forsyth; Christian Riekel; Martin Mueller; B.Rasmussen; Paul Langan;
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作者单位

Department of Biomaterials Science, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan;

Centre de Reserches sur les Macromolecules Vegetale, CNRS, BP 53, 38041 Grenoble, France;

rnDepartment of Biomaterials Science, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan;

Wood Research Institute, Kyoto University, Kyoto 611-0011, Japan;

Centre de Reserches sur les Macromolecules Vegetale, CNRS, BP 53, 38041 Grenoble, France;

rnInstitut Laue Langevin, 156X38042 Grenoble Cedex 9, France Physics Department, Keele University, Staffs ST5 5BG, UK;

rnEuropean Synchrotron Radiation Facility, BP 220, 38042 Grenoble Cedex, France;

European Synchrotron Radiation Facility, BP 220, 38042 Grenoble Cedex, France;

European;

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正文语种 eng
中图分类 X射线、紫外线、红外线;
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专利

1. Cellulose III_I Crystal Structure and Hydrogen Bonding by Synchrotron X-ray and Neutron Fiber Diffraction [J] . Masahisa Wada, Henri Chanzy, Yoshiharu Nishiyama Macromolecules . 2004,第23期

机译：同步X射线和中子纤维衍射的纤维素III_I晶体结构和氢键
2. Synchrotron X-ray fiber diffraction study on the thermal expansion behavior of cellulose crystals in tension wood of Japanese poplar in the low-temperature region [J] . Hitomi Hidaka, Ung-Jin Kim, Masahisa Wada Holzforschung . 2010,第2期

机译：同步X射线纤维衍射研究低温下日本杨树张力木材中纤维素晶体的热膨胀行为
3. Crystal structures of thermoelectric n- and p-type Ba8Ga16Ge30 studied by single crystal, multitemperature, neutron diffraction, conventional X-ray diffraction and resonant synchrotron X-ray diffraction [J] . Christensen M, Lock N, Overgaard J, Journal of the American Chemical Society . 2006,第49期

机译：通过单晶，多温度，中子衍射，常规X射线衍射和共振同步加速器X射线衍射研究了n型和p型Ba8Ga16Ge30热电晶体的结构
4. SYNCHROTRON X-RAY AND NEUTRON FIBER DIFFRACTION STUDIES OF CELLULOSE POLYMORPHS [C] . Yoshiharu Nishiyama, Henri Chanzy, Masahisa Wada, Annual conference on applications of X-ray analysis . 2002

机译：Synchrotron X射线和中子纤维衍射研究纤维素多晶型物
5. Neutron scattering and high-resolution synchrotron X-ray diffraction study of disordered perovskite crystals. [D] . La-Orauttapong, Duangmanee. 2003

机译：无序钙钛矿晶体的中子散射和高分辨率同步辐射X射线衍射研究。
6. Head-Head Interactions of Resting Myosin Crossbridges in Intact Frog Skeletal Muscles, Revealed by Synchrotron X-Ray Fiber Diffraction [O] . Kanji Oshima, Yasunobu Sugimoto, Thomas C. Irving, 2009

机译：静止的青蛙骨骼肌中休息的肌球蛋白横桥的头-头相互作用，通过同步X射线纤维衍射揭示。
7. Small-Angle X-Ray Scattering (SAXS), Ultra-Small Angle X-Ray Scattering (USAXS), Fluctuation X-Ray Scattering (FXS), Wide-Angle X-Ray Scattering (WAXS), Grazing-Incidence Small-Angle X-Ray Scattering (GISAXS), Grazing-Incidence Wide-Angle X-Ray Scattering (GIWAXS), Small-Angle Neutron Scattering (SANS), Grazing-Incidence Small-Angle Neutron Scattering (GISANS), X-Ray Diffraction (XRD), Powder X-Ray Diffraction (PXRD), Wide-Angle X-Ray Diffraction (WAXD), Grazing- Incidence X-Ray Diffraction (GIXD) and Energy-Dispersive X-Ray Diffraction (EDXRD) Comparative Study on Malignant and Benign Human Cancer Cells and Tissues under Synchrotron Radiation [O] . Alireza Heidari 2017

机译：小角X射线散射（萨克斯），超小角X射线散射（USAX），波动X射线散射（FXS），广角X射线散射（蜡），放牧发生小角度x - 射线散射（吉即），放牧入射广角X射线散射（Giwaxs），小角度中子散射（SAN），放牧发生小角度中子散射（Gisans），X射线衍射（XRD），粉末X射线衍射（PXRD），广角X射线衍射（WAXD），放牧发病X射线衍射（GIXD）和能量分散X射线衍射（EDXRD）对恶性和良性人体癌细胞的比较研究和同步辐射下的组织
8. Synchrotron x-ray and neutron fiber diffraction studies of cellulose polymorphs [R] . Langan, P. A. 2001

机译：细胞多态性的同步辐射X射线和中子纤维分化研究

SYNCHROTRON X-RAY AND NEUTRON FIBER DIFFRACTION STUDIES OF CELLULOSE POLYMORPHS

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