Results 51 to 60 of about 103,827 (310)

Vibrational dynamics resolved with sub-10-fs deep-ultraviolet pulses

EPJ Web of Conferences, 2013
Time-resolved ultrafast spectroscopy with sub-10-fs deep ultraviolet pulses was demonstrated for the first time. For the spectroscopy, the sub-10-fs pulses with smooth temporal and spectral profiles, which were suitable for spectroscopy, were prepared ...
Kobayashi T., Kida Y.
doaj   +1 more source

Ultraviolet-visible spectroscopy for food quality analysis

, 2019
Chandra, SS ORCiD: 0000-0002-4257-5860; Chapman, JM ORCiD: 0000-0002-9850-0403; Cozzolino, D ORCiD: 0000-0001-6247-8817; Power, A ORCiD: 0000-0002-7119-8486The most commonly used spectroscopic techniques in food analysis are atomic and molecular ...
James Chapman (9786539), Power, Aoife C, Aoife Power (9827552), Chapman, James M, Power, A. C., A.C. Power, Chapman, J., Shaneel Chandra (9786446), Daniel Cozzolino (9789365), Cozzolino, D., Chandra, S., D. Cozzolino, Chandra, Shaneel S, S. Chandra, Cozzolino, Daniel, J. Chapman   +15 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

High-Resolution Vacuum Ultraviolet Photoelectron Spectroscopy

CHIMIA, 2001
The development of narrow bandwidth tunable laser systems in the vacuum ultraviolet region of the electromagnetic spectrum and of new experimental methods has recently enabled a significant improvement in the resolution that can be achieved by ...
Urs Hollenstein, Bethany Brupbacher-Gatehouse, Gregory M. Greetham, Stefan Willitsch, Patrick Rupper, Andrea Wüest, Marcel Sommavilla, Andreas Osterwalder, Robert Seiler, Frédéric Merkt   +9 more
doaj  

Rapid Determination of Aesculin, Aesculetin and Fraxetin in Cortex Fraxini Extract Solutions Based on Ultraviolet Spectroscopy

E-Journal of Chemistry, 2011
To evaluate the application of ultraviolet spectroscopy for the rapid determination of aesculin, aesculetin and fraxetin in Cortex fraxini extract solutions, ultraviolet spectra of Cortex fraxini extract solutions from different batches were collected in
Ming Yang, Jia-Lei Chen, Xiu-Feng Shi, Hui-Jue Niu   +3 more
doaj   +1 more source

Mass spectrometry based identification of AMP‐O‐Tris generated by Thermococcus onnurineus Cas10

FEBS Open Bio, EarlyView.
Isolated Thermococcus onnurineus Cas10 generates the noncanonical ATP‐derived product AMP‐O‐Tris while in Tris‐containing buffer as identified via mass spectrometry, revealing relaxed nucleophile selectivity under isolated conditions. These findings suggest that multiprotein Csm complex assembly restricts Cas10 reactivity toward canonical cyclic ...
Su‐Jin Lee, Ga Seul Lee, JinHan Kim, Kwang‐Hyun Park, Seong‐Ryung Go, Jeong Hee Moon, Eui‐Jeon Woo   +6 more
wiley   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

Advanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo, Daniela Winsley Valereto Friozi, Vinícius de Oliveira, Marcia Cristina Branciforti   +3 more
wiley   +1 more source

Measuring the Density of States of the Inner and Outer Wall of Double-Walled Carbon Nanotubes

Nanomaterials, 2018
The combination of ultraviolet photoelectron spectroscopy and metastable helium induced electron spectroscopy is used to determine the density of states of the inner and outer coaxial carbon nanotubes.
Benjamin A. Chambers, Cameron J. Shearer, LePing Yu, Christopher T. Gibson, Gunther G. Andersson   +4 more
doaj   +1 more source

Adsorption of Diclofenac from Aqueous Solution Using Highly Meso porous Carbon

Journal of Scientific Research in Science, 2020
Synthetics of mesoporous carbon (MC) from biomass including sucrose was used as the carbon resource, and eutectic salt (KCl/NaCl) as the porogen agent for the preparation of S-MC (sucrose mesopores carbons).
Ebtsam S. Hamza, Nadia A. Youssef, Seham A. Shaban   +2 more
doaj   +1 more source