نتایج جستجو برای: nano crystallography

تعداد نتایج: 61504  

Journal: : 2023

Information on the history of mineralogical research and knowledge in independent Ukraine (since 1991) іs summarized book. The world-famous scientific schools formed second half 20th century (1940–1990): regional mineralogical, thermobarogeochemical, crystallochemical, mineral physics are characterized. achievements scientists regional, systematic genetic mineralogy, crystal chemistry physics, ...

Journal: :Nano Research 2021

Abstract Copper-hydrides have been intensively studied for a long time due to their utilization in variety of technologically important chemical transformations. Nevertheless, poor stability the species severely hinders its isolation, storage and operation, which is worse nano-sized ones. We report here an unprecedented strategy access ultrastable copper-hydride nanoclusters (NCs), namely, usin...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده مهندسی شیمی 1391

هدف از این گزارش بررسی اثر(نانولوله های کربنی(cnt)،sio2،خاک رس(nano clay)) بر خواص فیزیکوشیمیایی، مکانیکی، نمودار جذب تعادلی، عبوردهی نسبت به بخار آب و اکسیژن روی فیلمهای ژلاتینی می باشد.در این کار تحقیقاتی فیلم های ژلاتینی به همراه (نانولوله های کربنی(cnt)،sio2،خاک رس(nano clay)) در غلظت های 0 و1 و 3 و 5 % با استفاده از روش کاستینگ (solvent casting) انجام شد. کلیه خواص فیزیکوشیمیایی، مکانیکی و...

Journal: :Structure 2011
Goragot Wisedchaisri Steve L Reichow Tamir Gonen

Electron crystallography is a powerful technique for the study of membrane protein structure and function in the lipid environment. When well-ordered two-dimensional crystals are obtained the structure of both protein and lipid can be determined and lipid-protein interactions analyzed. Protons and ionic charges can be visualized by electron crystallography and the protein of interest can be cap...

Journal: :Cell 2014
Yigong Shi

Since determination of the myoglobin structure in 1957, X-ray crystallography, as the anchoring tool of structural biology, has played an instrumental role in deciphering the secrets of life. Knowledge gained through X-ray crystallography has fundamentally advanced our views on cellular processes and greatly facilitated development of modern medicine. In this brief narrative, I describe my pers...

Journal: :Angewandte Chemie 2014
Pradeep K Mandal Gavin W Collie Brice Kauffmann Ivan Huc

Racemates increase the chances of crystallization by allowing molecular contacts to be formed in a greater number of ways. With the advent of protein synthesis, the production of protein racemates and racemic-protein crystallography are now possible. Curiously, racemic DNA crystallography had not been investigated despite the commercial availability of L- and D-deoxyribo-oligonucleotides. Here,...

2017
Hemraj Chhipa

Excess use of chemical pesticides in agriculture assisting the accomplishment of agri-food production targets. But, indiscriminate use of chemical pesticide is the serious concern for environment and human, which deteriorating the soil health, nutritional quality of food and increasing resistance in phyto-pathogens and pests. Nanotechnology provided the sustainable solution in this regard by de...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2002

Journal: :Journal of the American Chemical Society 2005
Joseph M Mahoney Kenneth A Stucker Hua Jiang Ian Carmichael Nicole R Brinkmann Alicia M Beatty Bruce C Noll Bradley D Smith

A ditopic, macrobicyclic receptor with adjacent anion and cation binding sites is able to extract a range of monovalent salts into chloroform solution. The structures of the receptor complexed with KAcO, LiNO(3), NaNO(3), KNO(3), and NaNO(2) are characterized in solution by NMR spectroscopy and in the solid state by X-ray crystallography. The sodium and potassium salts are bound to the receptor...

Journal: :Acta Crystallographica Section A Foundations and Advances 2018

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