Results 31 to 40 of about 513,540 (340)

Characterization and digital restauration of XIV-XV centuries written parchments by means of non-destructive techniques. Three case studies [PDF]

open access: yes, 2018
Parchment is the primary writing medium of the majority of documents with cultural importance. Unfortunately, this material suffers of several mechanisms of degradation that affect its chemical-physical structure and the readability of text.
Pronti, L.   +5 more
core   +3 more sources

Fluorescence spectroscopy for clinical transplantation liver grafts monitoring: possibilities offered by 408 nm excitation

open access: yesActa Cirúrgica Brasileira, 2022
Purpose: Fluorescence spectroscopy techniques have been investigated aiming to reduce the invasiveness of methods for investigation of tissue. In transplantation procedures, it may offer the possibility of a complementary technique for the monitoring of ...
José Dirceu Vollet-Filho   +5 more
doaj   +1 more source

Detection of Single Ion Spectra by Coulomb Crystal Heating

open access: yes, 2010
The coupled motion of ions in a radiofrequency trap has been used to connect the frequency- dependent laser-induced heating of a sympathetically cooled spectroscopy ion with changes in the fluorescence of a laser-cooled control ion.
C. Ricardo Viteri   +6 more
core   +1 more source

Development and tests of a new prototype detector for the XAFS beamline at Elettra Synchrotron in Trieste [PDF]

open access: yes, 2016
The XAFS beamline at Elettra Synchrotron in Trieste combines X-ray absorption spectroscopy and X-ray diffraction to provide chemically specific structural information of materials.
Ahangarianabhari, M   +32 more
core   +2 more sources

Plasmonic antennas and zero mode waveguides to enhance single molecule fluorescence detection and fluorescence correlation spectroscopy towards physiological concentrations

open access: yes, 2014
Single-molecule approaches to biology offer a powerful new vision to elucidate the mechanisms that underpin the functioning of living cells. However, conventional optical single molecule spectroscopy techniques such as F\"orster fluorescence resonance ...
de Torres, Juan   +6 more
core   +3 more sources

Mobile spectroscopic instrumentation in archaeometry research [PDF]

open access: yes, 2016
Mobile instrumentation is of growing importance to archaeometry research. Equipment is utilized in the field or at museums, thus avoiding transportation or risk of damage to valuable artifacts.
Donais, MK, Vandenabeele, Peter
core   +2 more sources

CAMP-Membrane Interactions Using Fluorescence Spectroscopy

open access: yesBio-Protocol, 2013
The molecular mechanism by which peptide antibiotics (also referred as cationic antimicrobial peptides-CAMPs) penetrate through the bacterial wall barrier, interact with, and disrupt their membrane is complex. It depends mainly on the peptide properties (
Ron Saar Dover, Yechiel Shai
doaj   +1 more source

Predicción de la frescura del aceite de oliva virgen extra durante el almacenamiento mediante espectroscopía de fluorescencia [PDF]

open access: yes, 2017
Virgin olive oil quality relates to flavor and unique health benefits. Some of these properties are at the most desirable level when the oil is just extracted, since it is not a product that improves with age.
Aparicio, R.   +5 more
core   +2 more sources

Protein-mediated dethreading of a biotin-functionalised pseudorotaxane [PDF]

open access: yes, 2014
In this article, we describe the synthesis of new biotin-functionalised naphthalene derivatives 3 and 4 and their complexation behaviour with avidin and neutravidin using a range of analytical techniques.
Caldwell, S.T.   +11 more
core   +3 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

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