viernes, 11 de octubre de 2019

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 October 11, 2019 
 Fluorescence 
 The latest fluorescence news from NewsMedical 
 #ALT#Kinectics of Photocatalysis Reactions Studied by Transient Absorption Spectroscopy

Photocatalysis is the rate increase of a chemical reaction by light, often in the presence of a catalyst that starts the reaction upon irradiation. Photocatalysts are typically semiconducting metal oxides which are employed as particles in solution. When absorbing light they can generate electrons and holes which go on to react with chemical species on their surface.

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   Confocal Versus Super-resolution MicroscopyConfocal Versus Super-resolution Microscopy
 
Super-resolution microscopy refers to a collection of methods used to increase the resolution of light microscopy, whereas confocal microscopy uses a laser beam to increase the signal intensity from the sample.
 
   New technique can rapidly image synaptic proteins at high resolutionNew technique can rapidly image synaptic proteins at high resolution
 
Our brains contain millions of synapses -- the connections that transmit messages from neuron to neuron. Within these synapses are hundreds of different proteins, and dysfunction of these proteins can lead to conditions such as schizophrenia and autism.
 
 Scientists use ultrasound to detect active genes in live cells
 
Scientists use ultrasound to detect active genes in live cellsA startling new study published in the journal Science shows that ultrasound can help scientists to understand whether specific genes are in the active or inactive state in live cells. This incredible feat promises to transform the way scientists examine a host of living cell activities, ranging from the growth of tumors to neuron function.
 
 
 High-resolution imaging shows how HIV spreads between living cells
 
High-resolution imaging shows how HIV spreads between living cellsn order to treat diseases better, we must understand how they arise. A European research team led by Prof. Christian Eggeling from the Friedrich Schiller University Jena, the Leibniz Institute of Photonic Technology (Leibniz IPHT), and the University of Oxford has now succeeded in using high-resolution imaging to make visible to the millisecond how the HI virus spreads between living cells and which molecules it requires for this purpose.
 
 
 Researchers develop 3D tissue models of brain tumors in a brain-mimicking microenvironment
 
Researchers develop 3D tissue models of brain tumors in a brain-mimicking microenvironmentA team of Tufts University-led researchers has developed three-dimensional human tissue culture models of pediatric and adult brain cancers in a brain-mimicking microenvironment, a significant advancement for the study of brain tumor biology and pharmacological response.
 
 
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