Results 91 to 100 of about 23,824 (301)

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

Mechanical Overloading‐Induced Nanomineral Crystal Perturbation from the Osteochondral Interface: A Potential Initiator of Osteoarthritis

open access: yesAdvanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Nan Jiang   +8 more
wiley   +1 more source

Field desorption of sesium atoms from nanostructured rhenium surface [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2017
Using method of the field desorption microscopy, desorption of cesium atoms from quasi-spherical surface of a rhenium microcrystal in the electric field has been investigated.
D.P. Bernatskii, V.G. Pavlov
doaj   +1 more source

Photophysical characterizations of 2-(4-Biphenylyl)-5 phenyl-1,3,4- oxadiazole in restricted geometry

open access: yes, 2008
Langmuir and Langmuir-Blodgett (LB) films of nonamphiphilic 2-(4-Biphenylyl)-5 phenyl-1,3,4- oxadiazole (abbreviated as PBD) mixed with stearic acid (SA) as well as also with the inert polymer matrix poly(methyl methacrylate) (PMMA) have been studied ...
Acharya   +41 more
core   +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

Synergistic Mn‐MOF Activation of Pistol Ribozymes for Cancer Immunotherapy

open access: yesAdvanced Science, EarlyView.
A Mn2+‐based metal–organic framework delivers a catalytic Pistol ribozyme for targeted PD‐L1 mRNA cleavage in tumor cells, with the released Mn2+ not only inducing immune activation in immune cells but also increasing the Pistol ribozyme catalytic activity.
Ming Zhao   +10 more
wiley   +1 more source

Little bits of diamond: Optically detected magnetic resonance of nitrogen-vacancy centers

open access: yes, 2018
We give instructions for the construction and operation of a simple apparatus for performing optically detected magnetic resonance measurements on diamond samples containing high concentrations of nitrogen-vacancy (NV) centers.
Belvin, Carina   +6 more
core   +1 more source

Lipidic cubic phase serial millisecond crystallography using synchrotron radiation. [PDF]

open access: yes, 2015
Lipidic cubic phases (LCPs) have emerged as successful matrixes for the crystallization of membrane proteins.Moreover, the viscous LCP also provides a highly effective delivery medium for serial femtosecond crystallography (SFX) at X-ray free-electron ...
Berntsen, P   +26 more
core   +5 more sources

Transmission of Radio‐Frequency Waves and Nuclear Magnetic Resonance in Lanthanum Superhydrides

open access: yesAdvanced Science, EarlyView.
1H NMR and radio‐frequency transmission measurements of lanthanum superhydrides at 165 GPa reveals a transition at 260–280 K by a strong suppression of the signal intensity, significant changes in NMR spectra, including a dramatic decrease of the relaxation rate 1/T1T, and pronounced shielding effect, which may have a superconducting nature.
Dmitrii V. Semenok   +8 more
wiley   +1 more source

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

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