Results 91 to 100 of about 35,099 (310)

Discriminating Biomolecules with Coherent Control Strategies

open access: yesCHIMIA, 2011
The activity of the GAP-Biophotonics research group at the University of Geneva in the field of coherent control for discriminating similar biomolecules, such as flavins, proteins and DNA bases, is presented and future developments are discussed.
Ariana Rondi   +9 more
doaj   +1 more source

A Riboflavin-Derived Flavinium Salt Mediates Chemoselective Methylation Reactions. [PDF]

open access: yesChemistry
A two‐component methylation protocol was developed, where the active flavin mediator can be recycled in a single step. Crystallographic data and NMR spectroscopy support the mechanistic proposal, while chemoselective methylation was observed for a broad range of biologically relevant substrates. ABSTRACT Selective methylation is among the most relevant
Langschwager T   +3 more
europepmc   +2 more sources

Electron shuttle-mediated microbial Fe(III) reduction under alkaline conditions [PDF]

open access: yes, 2018
Purpose: Extracellular Fe(III) reduction plays an important role in a variety of biogeochemical processes. Several mechanisms for microbial Fe(III) reduction in pH-neutral environments have been proposed, but pathways of microbial Fe(III) reduction ...
A Navrotsky   +67 more
core   +1 more source

A “Hot Spring” Mimetic Aerogel Loaded with Multiple Amino Acids Modulates the Chronic Inflammatory Microenvironment Through Metabolic Reprogramming

open access: yesAdvanced Science, EarlyView.
The SrCuSi4O₁₀ bioceramic particles mimic the effects of hot spring therapy by increasing the local wound temperature, which enhances the absorption of amino acids and stimulates cell metabolism. The amino acid uptake supports cellular glutathione redox reactions, helping to mitigate oxidative stress.
Bo Li   +7 more
wiley   +1 more source

Fluorescence lifetime spectroscopy of tissue autofluorescence in normal and diseased colon measured ex vivo using a fiber-optic probe

open access: yes, 2013
We present an ex vivo study of temporally and spectrally resolved autofluorescence in a total of 47 endoscopic excision biopsy/resection specimens from colon, using pulsed excitation laser sources operating at wavelengths of 375 nm and 435 nm.
Chorvat   +65 more
core   +1 more source

Programming Next‐Generation Synthetic Biosensors by Genetic Circuit Design

open access: yesAdvanced Science, EarlyView.
Synthetic biology enables genetic circuit‐based biosensing to detect diverse targets, process signals, and transduce them into readable outputs or intracellular regulatory activities. However, field deployment and real‐world application of such synthetic biosensors face considerable challenges in sensitivity, specificity, speed, stability, and ...
Yuanli Gao   +4 more
wiley   +1 more source

Development of a Bioaerosol single particle detector (BIO IN) for the Fast Ice Nucleus CHamber FINCH [PDF]

open access: yes, 2010
In this work we present the setup and first tests of our new BIO IN detector. This detector was constructed to classify atmospheric ice nuclei (IN) for their biological content. It is designed to be coupled to the Fast Ice Nucleus CHamber FINCH.
Bingemer, Heinz   +4 more
core   +1 more source

Establishment of a mouse model of TMAO‐induced cardiac injury and application of MICT intervention

open access: yesAnimal Models and Experimental Medicine, EarlyView.
This study aims to explore the establishment of an animal model of cardiac injury induced by trimethylamine‐N‐oxide (TMAO), a metabolite secreted by gut microorganisms, and to investigate its application in moderate‐intensity continuous training (MICT) intervention.
Zhongping Xie   +4 more
wiley   +1 more source

Optical biopsy identification and grading of gliomas using label-free visible resonance Raman spectroscopy. [PDF]

open access: yes, 2019
Glioma is one of the most refractory types of brain tumor. Accurate tumor boundary identification and complete resection of the tumor are essential for glioma removal during brain surgery.
Alfano, Robert R   +12 more
core   +1 more source

Comparative structure-potentio-spectroscopy of the Shewanella outer membrane multiheme cytochromes [PDF]

open access: yes, 2017
Many species of bacteria can generate energy in the anoxic subsurface by directly coupling intracellular oxidative reactions to the reduction of extracellular metal oxides. Coupling these processes requires electron transfer networks that extend from the
Butt, Julea N.   +4 more
core   +2 more sources

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