Powder X-ray diffraction observations of ice crystals formed from disaccharide solutions
文献情報
Tsutomu Uchida, Satoshi Takeya
Powder X-ray diffraction (PXRD) measurements on rapid freezing samples of disaccharide (trehalose, sucrose, and maltose) solutions indicated that the crystalline phases in the sample were both hexagonal and cubic ice. The cubic ice existed at a higher ratio in the higher disaccharide concentration samples. The temperature ramping experiments revealed that the cubic ice was stable below 233 K, which was obviously higher than the temperature expected for a pure water system. The diffraction peak width of the hexagonal ice crystal was independent in the disaccharide concentrations. This indicated that the crystallite size of the hexagonal ice was more than several hundreds of nanometre, which coincided with the ice particle size previously observed in the freeze-fractured replica samples. The comparison of the present PXRD data with the replica observations by transmission electron microscope in an earlier study allows us to conclude that the cubic ice was formed at the grain boundary between the hexagonal ice and the coexisted non-crystalline disaccharide phase.
関連文献
Freestanding interconnected nanocluster textiles for efficient oxygen evolution reaction
Shougo Higashi, Takashi Tachikawa, Keiichiro Oh-ishi, Keisuke Shigetoh, Kensuke Takechi, Atsushi Beniya
DOI: 10.1039/D0TA07707K
Extraordinary role of Hg in enhancing the thermoelectric performance of p-type SnTe
Gangjian Tan, Fengyuan Shi, Jeff W. Doak, Hui Sun, Li-Dong Zhao, Pengli Wang, Ctirad Uher, Chris Wolverton, Vinayak P. Dravid
DOI: 10.1039/C4EE01463D
Conjugated polymers with controllable interfacial order and energetics enable tunable heterojunctions in organic and colloidal quantum dot photovoltaics
Ahmad R. Kirmani, Xinzheng Lan, Joshua Carpenter, Annabel Rong-Hui Chew, Muhammad R. Niazi, Oleksandr Voznyy, Guy Olivier Ngongang Ndjawa, Alberto Salleo, Harald Ade, Edward H. Sargent
DOI: 10.1039/D1TA09544G
Floating, highly efficient, and scalable graphene membranes for seawater desalination using solar energy
Guijun Li, Wing-Cheung Law, Kang Cheung Chan
DOI: 10.1039/C8GC01347K
Diketopyrrolopyrrole-based semiconducting polymer nanoparticles for in vivo second near-infrared window imaging and image-guided tumor surgery
Yufu Tang, Hao Chen, Si Chen, Lei Zhang, Ao Zhang, Quli Fan, Aixi Yu, Zhen Cheng
DOI: 10.1039/C8SC00206A
Peptide turns through just ‘one atom’! A sulfamide group nucleates folding and stabilizes new supramolecular topologies in short peptides
Pushparathinam Gopinath, Venkatachalam Ramkumar, Kannoth Manheri Muraleedharan
DOI: 10.1039/C4CE01938E
A kinetically well-matched full-carbon sodium-ion capacitor
Kangyu Zou, Peng Cai, Cheng Liu, Jiayang Li, Xu Gao, Laiqiang Xu, Guoqiang Zou, Hongshuai Hou, Zuming Liu, Xiaobo Ji
DOI: 10.1039/C9TA03797G
Constructing bulk-contact inside single crystals of organic semiconductors through gel incorporation
DOI: 10.1039/C5CE02383A
Structure-dependent iron-based metal–organic frameworks for selective CO2-to-CH4 photocatalytic reduction
Xiao-Yao Dao, Jin-Han Guo, Xiao-Yu Zhang, Shi-Qing Wang, Xiao-Mei Cheng, Wei-Yin Sun
DOI: 10.1039/D0TA10278D
こちらもおすすめ
オステニ二甲磺酸塩に適用される法規ガイドラインは何ですか?
オステニ二甲磺酸塩は、GHS分類に基づき corrosive 物質として分類されます。REACH規則では、該当物質の登録が要求される可能性があります。また、FD...
環丁基肼盐酸盐は安全ですか?
環丁基肼盐酸盐は毒性があり、吸入や皮膚接触は有害です。使用時の安全対策として、密閉システムを使用し、適切な排気設備を備えた場所で作業することが推奨されます。
N-(4-パリドン基ソニルフェニル)硫代イソシアネートを取り扱う際の実験室安全事項は何ですか?
N-(4-パリドン基ソニルフェニル)硫代イソシアネートは高毒性で、皮膚や吸入による毒性があります。取り扱う際は防毒マスク、保護用手袋、保護眼鏡などのPPEを着用...
5-ヒドロキシ-1,3-ジヒドロ-2H-インドン-2-酮の物理化学的性質は何ですか?
CAS番号3416-18-0の5-ヒドロキシ-1,3-ジヒドロ-2H-インドン-2-酮は、結晶性の白色粉末です。分子量は228.25であり、 aqueous m...
O-苄基-D-丝氨醇はどのように合成されますか?
O-苄基-D-丝氨醇は、D-アミノ酸とベンゼン環の経由で合成されます。触媒としてジメチルアミノピリジンが使用され、選択性は高いです。一般的な収率は約90%です。
ナトリウム3-ヒドロキシbutano酸とは何ですか?
ナトリウム3-ヒドロキシbutano酸は、CAS番号13613-65-5で登録されている化合物です。この化合物は、(3R)-3-ヒドロキシbutano酸とナトリ...
1-(二苯甲基)-4-甲基ベンゼンの物理化学的性質は何ですか?
CAS番号603-37-2の1-(二苯甲基)-4-甲基ベンゼンは、結晶性の固体で、分子量は244.28であり、水中的には微溶です。この化合物は有機反応において中...
ネアミン塩酸塩の物理化学的性質は何ですか?
ネアミン塩酸塩の分子量は321.19であり、結晶性の白色粉末です。この化合物は水に溶けやすく、pHが低くなると不溶性になります。反応活性は高く、水溶液中の酸化還...
偶氮二甲酰二哌啶の主な用途は何ですか?
偶氮二甲酰二哌啶は、医薬品、染料、高 Então 剤、触媒、溶媒、量論試薬など、様々な分野で使用されています。特に、高 Enough 反応において、グリコール酸...
掲載誌
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.













![Ethanone, 1-[4-chloro-2-(methylthio)-5-pyrimidinyl]- structure Ethanone, 1-[4-chloro-2-(methylthio)-5-pyrimidinyl]- structure](https://static.chemtradehub.com/structs/661/66116-82-3-863e.webp)
