CIENCIASMEDICASNEWS: Medical News | Medical Articles: Measuring Picosecond Fluorescence Lifetimes

sábado, 12 de septiembre de 2020

Medical News | Medical Articles: Measuring Picosecond Fluorescence Lifetimes

	Fluorescence
	The latest fluorescence news from NewsMedical

What is Time-Resolved Fluorescence Spectroscopy?

Measuring Picosecond Fluorescence Lifetimes

The measurement of fluorescence lifetimes provides a wealth of information on the sample under study, from the local environment of biomolecules in living cells to charge-carrier lifetimes in semiconductors. Short fluorescence lifetimes on a picosecond timescale must be measured in a number of these studies.

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			Fluorescent molecules in urine can help monitor malignant melanoma What if you could simply provide a urine sample rather than undergo a painful surgical procedure to find out if your cancer was responding to treatment? It may seem too good to be true, but researchers at Pavol Jozef šafárik University in Košice, Slovakia, have identified fluorescent molecules in urine that may allow patients with malignant melanoma to do just that.

			Researchers demonstrate sub-nanometer scale spatial resolution in Raman spectroscopy imaging Prof. DONG Zhenchao and Prof. HOU Jianguo from University of Science and Technology of China (USTC) of Chinese Academy of Sciences (CAS) improved the spatial resolution from 8 nm to ~8 å of photoluminescence imaging. It realized sub-molecular resolution with single molecule photofluorescence imaging for the first time.

	New fluorescent probe to detect damaged mitochondria could help treat neurodegenerative disorders Scientists have developed a new, multipurpose probe that is capable of detecting the programmed destruction of faulty mitochondria with pinpoint precision.

	Developing new fluorescent metal sensors to explore the gastrointestinal tract A University of Houston researcher is developing a new set of metal sensors that will be able to function in the gastrointestinal tract, a low oxygen environment, to examine how gut bacteria respond when trace metal nutrients, like iron and zinc, are thrown out of balance either through diet or disease.

	New Imaging Technique Provides an Unprecedented Look Inside Cell Membranes For those not involved in chemistry or biology, picturing a cell likely brings to mind several discrete, blob-shaped objects; maybe the nucleus, mitochondria, ribosomes and the like.