Results 81 to 90 of about 3,813,110 (258)

Time-resolved NIR/Vis spectroscopy for analysis of solids: Pharmaceutical tablets [PDF]

open access: yes, 2002
Time-resolved spectroscopy in the visible and near-infrared (NIR) regions was used in a feasibility study for analysis of solid pharmaceuticals. The objective of the experiments was to study the interaction of light with pharmaceutical solids and to ...
Svanberg, Sune,   +10 more
core   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Current Problems of Mechanical Spectroscopy

open access: yesУспехи физики металлов, 2013
A given review article is dedicated to the 75th anniversary of C. M. Zener’s published work ‘Internal friction in solids. Theory and experiment’. А historical aspect of research in the field of mechanical spectroscopy in Ukraine, Russia and other ...
S. A. Golovin, P. P. Pal-Val, O. V. Mozgovyy
doaj   +1 more source

Mechanical Proof of the Second Law of Thermodynamics Based on Volume Entropy [PDF]

open access: yes, 2007
In a previous work (M. Campisi. Stud. Hist. Phil. M. P. 36 (2005) 275-290) we have addressed the mechanical foundations of equilibrium thermodynamics on the basis of the Generalized Helmholtz Theorem.
Campisi, Michele
core   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Characterisation of silicon nanoparticles produced by mechanical attrition using scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray photoemission spectroscopy [PDF]

open access: yes, 2012
Includes abstract.Includes bibliographical references.The establishment of printing technologies, using nanoparticle based inks, promises inexpensive manufacture of electronic devices.
Unuigbe, David Moweme
core   +1 more source

Measurement of Light Absorbing Aerosols with Folded-Jamin Photothermal Interferometry

open access: yesSensors, 2020
In this study, a photothermal interferometer was developed, based on a folded-Jamin polarization instrument with refractive-index sensitive configuration, in order to characterize light-absorbing aerosols. The feasibility of our interferometric technique
Jeonghoon Lee, Hans Moosmüller
doaj   +1 more source

Mechanical spectroscopy in carbon nanotube reinforced ABS

open access: yes
Mechanical spectroscopy has been used to qualify possible improvements of the mechanical properties of acrylonitrile-butadiene-styrene-carbon nanotubes (ABS-CNTs) composites. The properties of ABS matrix are first investigated.
Mari, D., Schaller, R.
core   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

Novel single-molecule force spectroscopy approaches to characterize interactions of membrane proteins [PDF]

open access: yes, 2012
: Atomic force microscopy (AFM) based single-molecule force spectroscopy (SMFS) is a biophysical tool used to investigate folding and unfolding of biological macromolecules, like membrane proteins. Unfolding of single membrane proteins can be recorded by
Zocher, Michael
core   +1 more source

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