Results 81 to 90 of about 5,307,006 (250)

Electron paramagnetic resonance based spectroscopic techniques

, 2020
© 2014 Springer-Verlag Berlin Heidelberg. All rights reserved. This chapter addresses the use of electron paramagnetic resonance based spectroscopic techniques to study nanostructures.
Baranov P., Orlinskii S., Romanov N., Schmidt J., De Mello Donegá C.   +4 more
core  

Prophylactically Feeding Manganese to Drosophila Confers Sex-Specific Protection from Acute Ionizing Radiation Independent of MnSOD2 Levels

Antioxidants
Ionizing radiation is a health threat to many, including warfighters, radiological emergency responders, radiotherapy patients, and astronauts. Despite this, no FDA-approved prophylactic medical countermeasures exist to attenuate the symptoms that occur ...
Robert P. Volpe, Aditya Sen, Ajay Sharma, Venkatesan Kathiresan, Brian M. Hoffman, Rachel T. Cox   +5 more
doaj   +1 more source

A novel synthesis of 4-toluene 9H-carbazole-9-carbodithioate, electropolymerization and impedance study

eXPRESS Polymer Letters, 2014
A novel synthesis of 4-toluene 9H-carbazole-9-carbodithioate (TCzC) was chemically synthesized and characterized by Fourier Transform Infrared (FTIR), proton nuclear magnetic resonance (1H-NMR), and carbon nuclear magnetic resonance (13C-NMR ...
M. Ates, N. Uludag, T. Karazehir, F. Arican   +3 more
doaj   +1 more source

Ligand Assisted Epitaxial Growth of CsPbBr3 Microcrystal Resonators With Record ‐Low Lasing Thresholds

Advanced Functional Materials, EarlyView.
Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou, Viktor Rehm, Zijian Peng, Tomáš Hrbek, Anastasia Barabash, Christoph J. Brabec, Berke Özyalin, Yufei Han, Johannes Böhmer, Johannes Will, Erdmann Spiecker, Klaus Götz, Tobias Unruh, Jędrzej Korczak, Tomasz Story, Felix Hilpert, Olaf Brummel, Jörg Libuda, Iva Matolínová, Wolfgang Heiss   +19 more
wiley   +1 more source

-band electron nuclear double resonance spectroscopy

, 2000
Electron-nuclear double resonance spectra at 95 GHz and electron-spin-echo envelope-modulation spectra at 9.5 GHz are reported for a frozen solution of fully C-13 enriched C-60 molecules in their photoexcited triplet state. Analysis of these data reveals
D. J. van den Heuvel, X. L. R. Dauw, Groenen, E.J.J., G. J. B. van den Berg, Berg, G.J.B. van den, Poluektov, O.G., E. J. J. Groenen, Heuvel, D.J. van den, Dauw, X.L.R., O. G. Poluektov   +9 more
core   +1 more source

Flavoproteins as native and genetically encoded spin probes for in cell ESR spectroscopy

Nature Communications
Flavin cofactors are attractive Electron Spin Resonance (ESR) probes for proteins because cellular reductants and light can generate their semiquinone states.
Timothée Chauviré, Siddarth Chandrasekaran, Robert Dunleavy, Jack H. Freed, Brian R. Crane   +4 more
doaj   +1 more source

Oxygen Evolution Electrocatalysts with Trinuclear, Mixed‐Valence Iron Motifs on Electronically Aligned Carbon Dots

Advanced Functional Materials, EarlyView.
Trinuclear iron oxo‐bridged catalytic ensembles stabilized by aspartic‐acid‐derived carbon dots provide an effective platform for alkaline oxygen evolution. Mixed‐valence charge balancing, inner‐sphere charge transport, and work‐function alignment within the N/O‐rich carbon framework promote cooperative Fe‐site chemistry and efficient OER ...
Megha A. Deshmukh, Giorgio Zoppellaro, Emiliano Fonda, Lukáš Zdražil, Shounik Paul, David Panáček, Hanuman Thorat, Zdeněk Badura, Michele Melchionna, Manuela Bevilacqua, Paolo Fornasiero, Klaus Müllen, Radek Zbořil, Aristides Bakandritsos   +13 more
wiley   +1 more source

Pulsed Electron-Nuclear Double Resonance (ENDOR) at 140 GHz

Journal of Magnetic Resonance, 1999
We describe a spectrometer for pulsed ENDOR at 140 GHz, which is based on microwave IMPATT diode amplifiers and a probe consisting of a TE011 cavity with a high-quality resonance circuit for variable radiofrequency irradiation. For pulsed EPR we obtain an absolute sensitivity of 3x10(9) spins/Gauss at 20 K.
Bennati, Marina, Farrar, C. T., Bryant, J. A., Inati, S. J., Weis, V., Gerfen, G. J., Riggs-Gelasco, P., Stubbe, J., Griffin, R. G.   +8 more
openaire   +3 more sources

Multidimensional‐Encoded High‐Fidelity Spectrometers With a Floating‐Base Bipolar Junction

Advanced Functional Materials, EarlyView.
A floating‐base bipolar junction photodetector enables multidimensional spectral encoding through synergistic gate‐ and drain‐bias modulation of interfacial barrier matching. The resulting complementary spectral responses form a diverse, weakly correlated response matrix, enabling robust and high‐fidelity spectral reconstruction even at sub‐nanoampere ...
Sang‐Hyeon Lee, Junho Min, Yonas Tsegaye Megra, Min‐Hye Jeong, Hwi Je Woo, Jaewon Han, Junheon Ha, Gyunghyun Jang, Young Jae Song, Hyun‐Soo Ra, Hoon Hahn Yoon, Jong‐Soo Lee   +11 more
wiley   +1 more source

Synthesis and Characterization of a Novel Borazine-Type UV Photo-Induced Polymerization of Ceramic Precursors

Molecules, 2016
A preceramic polymer of B,B′,B′′-(dimethyl)ethyl-acrylate-silyloxyethyl-borazine was synthesized by three steps from a molecular single-source precursor and characterized by Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR ...
Dan Wei, Lixin Chen, Tingting Xu, Weiqi He, Yi Wang   +4 more
doaj   +1 more source