Results 121 to 130 of about 667,586 (301)

Spectroscopy of high proper motion stars in the ground--based UV

, 2011
Based on high quality spectral data (spectral resolution R>60000) within the wavelength range of 3550-5000 AA we determined main parameters (effective temperature, surface gravity, microturbulent velocity, and chemical element abundances including heavy ...
A. Alonso, A. McWilliam, B. Shustov, B.W. Carney, B.W. Carney, C. Allen, D. Carollo, D. Hofsaess, F. Kupka, I. Roederer, I. Usenko, J. Westin, K.A. Venn, K.U. Ratnatunga, M. Asplund, M.A.C. Perryman, N. Tavolganskaya, N.E. Piskunov, P. Flower, R.L. Kurucz, S. Korotin, S.A. Korotin, S.M. Andrievsky, S.M. Andrievsky, T. Gehren, T. Mishenina, T.V. Mishenina, V. Klochkova, V. Marsakov, V. Panchuk, V. Panchuk, V.A. Marsakov, V.A. Marsakov, V.G. Klochkova, V.G. Klochkova, V.V. Koval’, V.V. Tsymbal   +36 more
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Studying the "Rigid-Flexible" Properties of Polymeric Micelle Core-Forming Segments with a Hydrophobic Phthalocyanine Probe Using NMR and UV Spectroscopy. [PDF]

Langmuir, 2021
Lamch Ł, Gancarz R, Tsirigotis-Maniecka M, Moszyńska IM, Ciejka J, Wilk KA.   +5 more
europepmc   +1 more source

Ultraviolet Spectra of Two Magnetic White Dwarfs and Ultraviolet Spectra of Subluminous Objects Found in the Kiso Schmidt Survey and Ultraviolet Absorptions in the Spectra of DA White Dwarfds [PDF]

Research under NASA Grant NAG5-287 has carried out a number of projects in conjunction with the International Ultraviolet Explorer (IUE) satellite. These include: (1) studies of the UV spectra of DA white dwarfs which show quasi-molecular bands of H2 and
Wegner, Gary A.
core   +1 more source

DESIGN OF RHAMNOLIPID-ETHYL THIOSULFANILATE NANOPARTICLES, PHYSICOCHEMICAL CHARACTERISTICS, BIOLOGICAL ACTIVITY

Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry
Nowadays, the urgent task of pharmacy and chemistry is to increase the bioavailability and effectiveness of medicines to overcome the resistance of pathogens. Nanoparticles based on biologically active substances have a special potential for solving this
NATALYA SHCHEGLOVA , ALLA PROKOPALO , VIRA LUBENETS , OLEKSANDR RESHETNYAK, OLENA KARPENKO   +4 more
doaj  

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Conformational analysis by UV spectroscopy: the decisive contribution of environment-induced electronic Stark effects. [PDF]

Chem Sci, 2021
Donon J, Habka S, Mons M, Brenner V, Gloaguen E.   +4 more
europepmc   +1 more source

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

Advanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang, Max Gießübel, Pankaj Dharpure, Andrea Albert, Vira Niestierkina, Paul Mulvaney, Mukundan Thelakkat, Jürgen Köhler   +7 more
wiley   +1 more source

STUDIES ON PLANT BILE PIGMENTS. [PDF]

, 1982
The (4 Z, 10 2, 15Ej-2,3-dihydrobilindione 4, along with the fully unsaturated (E, 2, Z)-analogue 8, has been prepared from the corresponding (Z, Z, Z)-isomer by a variation of Falk's method (Falk et ul., 1980).
Cmiel, Edmund, Kufer, Werner, Rüdiger, W., Scheer, Hugo, Schneider, Siegfried, Thümmler, F.   +5 more
core  

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source