Results 91 to 100 of about 10,597 (265)

Microcrystals of an organic fluorescent dye grown in the presence of various PAMAM dendrimers: Control of the morphology and optical properties

open access: yesInternational Journal of Photoenergy, 2004
Microcrystals of a fluorescent dye, 4-n-octylamino-7-nitrobenzoxadiazole, were prepared by the reprecipitation method. Poly(amidoamine)dendrimers bearing anionic, cationic or neutral terminating groups were used as additives in the recrystallization ...
Franck Bertorelle   +2 more
doaj   +1 more source

Synthesis,Characterization and Properties of Ag/InP Composites

open access: yesCailiao gongcheng, 2017
InP microcrystal was successfully synthesized via a facile hydrothermal route, and then Ag nanoparticles were loaded on the surface of InP microcrystal using UV lamp to reduce silver versions.
LIU Shu-ling, HAN Xiao-li, TONG Jian-bo
doaj   +1 more source

Microcrystalline testing used in combination with Raman micro-spectroscopy for absolute identification of novel psychoactive substances [PDF]

open access: yes, 2016
Two new psychoactive substances, namely 4-methylmethcathinone (mephedrone) and 5,6-methylenedioxy-2-aminoindane (MDAI) were analysed with a novel combination of microcrystalline tests followed by Raman micro-spectroscopy to facilitate their absolute ...
Aakeröy   +45 more
core   +3 more sources

Helicalization of Covalent Organic Framework Nanofibers with Amplified Spin Polarizability for Boosting Photocatalytic Hydrogen Evolution

open access: yesAdvanced Science, EarlyView.
A non‐covalent chirality‐induced strategy via chiral solvents is presented to synthesize helical 2D COF nanofibers with high crystallinity, high chirality, and high spin polarization. The helical structure enhances the concentration of photogenerated charges, suppresses exciton recombination, and extends carrier lifetimes, thereby significantly ...
Qi Zhong   +4 more
wiley   +1 more source

Dual-barrel conductance micropipet as a new approach to the study of ionic crystal dissolution kinetics [PDF]

open access: yes, 2013
A new approach to the study of ionic crystal dissolution kinetics is described, based on the use of a dual-barrel theta conductance micropipet. The solution in the pipet is undersaturated with respect to the crystal of interest, and when the meniscus at ...
Alex W. Colburn   +60 more
core   +1 more source

Unity Quantum Yield of High‐Entropy Quantum Dots Composited With Photonic Crystals for Information Encryption

open access: yesAdvanced Science, EarlyView.
This study first extends the high‐entropy concept to I‐III‐VI quantum dots (QDs) and synthesizes CZCrGSe/ZnSe/ZnS core/shell/shell QDs with a record photoluminescence quantum yield (PLQY) of 100%. Their ZnSe/ZnS double shell efficiently passivates defects and boosts structural stability.
Maoyuan Huang   +9 more
wiley   +1 more source

An on-demand, drop-on-drop method for studying enzyme catalysis by serial crystallography

open access: yesNature Communications, 2021
Currently many of the time resolved serial femtosecond (SFX) crystallography experiments are done with light driven protein systems, whereas the reaction initiation for non-light triggered enzymes remains a major bottle neck. Here, the authors present an
Agata Butryn   +35 more
doaj   +1 more source

Giant water clusters: where are they from?

open access: yes, 2018
A new mechanism for the formation and destruction of giant water clusters described in the literature is proposed. We have earlier suggested that the clusters are associates of liquid crystal spheres (LCS), each of which is formed around a seed particle,
Drozdov, M., Yakhno, T., Yakhno, V.
core   +1 more source

A high performance scanning force microscope head design [PDF]

open access: yes, 1993
A stable and highly sensitive scanning force microscope head design is presented. The head provides an implementation of the optical lever detection method in which mechanical vibration noise has been ...
Baldeschwieler, John D.   +1 more
core   +1 more source

Clotrimazole‐loaded PLGA microparticles for local drug delivery to the vagina: Shape does matter

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Clotrimazole‐loaded PLGA microparticles for intravaginal delivery. Abstract Background Intravaginal drug administration is the most promising strategy for treating vaginal infections to protect women's health, such as vulvovaginal candidiasis (VVC). However, conventional vaginal formulations in the clinic face challenges such as drug leakage and low ...
Yanyu Li   +8 more
wiley   +1 more source

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