Results 51 to 60 of about 215,735 (298)

Optical properties of gold nanoclusters constructed from Au13 units

Aggregate, Volume 3, Issue 6, December 2022., 2022
This review summarizes various optical properties of gold nanoclusters that consist of Au13 motifs. The structural evolution from Au13 to Au25, Au37, and Au60 is illustrated with increasing number of the Au13 building blocks. The review on the photo‐physics of Au13 family provides a comprehensive understanding of Au13‐assembled nanoclusters, which is ...
Jie Kong, Wei Zhang, Yanzhen Wu, Meng Zhou   +3 more
wiley   +1 more source

Hydrogen-Bonding Motifs in Piperazinediium Salts

Crystals, 2014
Four novel organic salts of piperazine and 2-methylpiperazine with p-toluenesulfonic acid and chloroacetic acid have been synthesized and structurally characterized.
Chris S. Hawes, Cherry Chen, Andrew Tran, David R. Turner   +3 more
doaj   +1 more source

Chiral Engineered Biomaterials: New Frontiers in Cellular Fate Regulation for Regenerative Medicine

Advanced Functional Materials, EarlyView.
Chiral engineered biomaterials can selectively influence cell behaviors in regenerative medicine. This review covers chiral engineered biomaterials in terms of their fabrication methods, cellular response mechanisms, and applications in directing stem cell differentiation and tissue function.
Yuwen Wang, Xin Zhang, Denghui Xie, Chunying Chen, Zhifeng Huang, Zhong Alan Li   +5 more
wiley   +1 more source

A Short Lecture on Topological Crystallography and a Discrete Surface Theory [PDF]

Anam Lecture Notes in Mathematics, An introduction to discrete differential geometry, Volume 2, 83-147 (2020), 2020
This is an unrefereed lecture note based on lectures in 'Introductory Workshop on Discrete Differential Geometry' at Korea University on January 21--24, 2019. In this note, we discuss topological crystallography, which is a mathematical theory of crystal structures.
arxiv  

A Simple Technique to Improve Microcrystals Using Gel Exclusion of Nucleation Inducing Elements

Crystals, 2018
A technique is described for generating large well diffracting crystals from conditions that yield microcrystals. Crystallization using this technique is both rapid (crystals appear in <1 h) and robust (48 out of 48 co-crystallized with a fragment ...
Adafih Blackburn, Shahla H. Partowmah, Haley M. Brennan, Kimberly E. Mestizo, Cristina D. Stivala, Julia Petreczky, Aleida Perez, Amanda Horn, Sean McSweeney, Alexei S. Soares   +9 more
doaj   +1 more source

3D printed devices and infrastructure for liquid sample delivery at the European XFEL

Journal of Synchrotron Radiation, 2022
The Sample Environment and Characterization (SEC) group of the European X-ray Free-Electron Laser (EuXFEL) develops sample delivery systems for the various scientific instruments, including systems for the injection of liquid samples that enable serial ...
Mohammad Vakili, Johan Bielecki, Juraj Knoška, Florian Otte, Huijong Han, Marco Kloos, Robin Schubert, Elisa Delmas, Grant Mills, Raphael de Wijn, Romain Letrun, Simon Dold, Richard Bean, Adam Round, Yoonhee Kim, Frederico A. Lima, Katerina Dörner, Joana Valerio, Michael Heymann, Adrian P. Mancuso, Joachim Schulz   +20 more
doaj   +1 more source

Point groups in crystallography [PDF]

Acta Crystallographica Section A Foundations of Crystallography, 2008
Two dual spaces are extensively used in crystallography: the point space E n , hosting the crystal pattern; and the vector space V n , where face normals and reciprocal-lattice vectors are defined. The term "point group" is used in crystallography to indicate four different types of groups in these two spaces.
Nespolo, Massimo, Souvignier, B.
openaire   +8 more sources

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

Atroposelective Arene‐Forming Alkene Metathesis**

Angewandte Chemie, Volume 134, Issue 51, December 19, 2022., 2022
The feasibility of alkene metathesis to catalytically control stereogenic axes by traceless arene formation is reported. Key to the process is a selective conversion of stereodynamic trienes by a chiral molybdenum catalyst, providing configurationally‐stable atropisomers under mild conditions in excellent yields with up to 98 : 2 e.r.
Zlatko Jončev, Christof Sparr
wiley   +2 more sources

Conotoxins Targeting Nicotinic Acetylcholine Receptors: An Overview

Marine Drugs, 2014
Marine snails of the genus Conus are a large family of predatory gastropods with an unparalleled molecular diversity of pharmacologically active compounds in their venom.
Eline K. M. Lebbe, Steve Peigneur, Isuru Wijesekara, Jan Tytgat   +3 more
doaj   +1 more source