Results 31 to 40 of about 93,554 (286)

Liquid scintillation counting at the limit of detection in biogeosciences

Frontiers in Microbiology, 2023
Liquid scintillation is widely used to quantify the activity of radioisotopes. We present an overview of the technique and its application to biogeosciences, particularly for turnover rate measurements.
Florian Schubert, Jens Kallmeyer
doaj   +1 more source

Investigation of activation cross-sections of proton induced nuclear reactions on natTl up to 42 MeV: review, new data and evaluation

, 2013
Cross-sections of proton induced nuclear reactions on natural thallium have been studied for investigation of the production of the medical important 201Tl diagnostic radioisotope.
Adam-Rebeles, R., Cichelli, O., Ditrói, F., Hermanne, A., Ignatyuk, A. V., Takács, S., Tárkányi, F., Walravens, N.   +7 more
core   +1 more source

Hair radioactivity as a measure of exposure to radioisotopes [PDF]

, 1972
Since many radioisotopes accumulate in hair, this tropism was investigated by comparing the radioactivity of shaved with plucked hair collected from rats at various time intervals up to 24 hrs after intravenous injection of the ecologically important ...
Flynn, A., Fratianne, R. B., Pories, W. J., Strain, W. H.   +3 more
core   +1 more source

Activation cross-sections of longer lived products of deuteron induced nuclear reactions on ytterbium up to 40 MeV

, 2013
In the frame of a systematic study of the activation cross-sections of the deuteron induced nuclear reactions, excitation functions of the natYb(d,xn)177,173,172mg,171mg,170,169Lu, natYb(d,x)175,169Yb and natYb(d,x)173,172,168,167,165Tm reactions are ...
Baba, M., Ditrói, F., Hermanne, A., Ignatyuk, A. V., Mohammadi, A., Takács, S., Tárkányi, F., Yamazaki, H.   +7 more
core   +1 more source

Cell Calcification Models and Their Implications for Medicine and Biomaterial Research

Advanced Healthcare Materials, EarlyView.
Calcification, is the process by which the tissues containing minerals are formed, occurring during normal physiological processes, or in pathological conditions. Here, it is aimed to give a comprehensive overview of the range of cell models available, and the approaches taken by these models, highlighting when and how methodological divergences arise,
Luke Hunter, Caterina Vanelli Coralli, Robert Dzhanaev, Aaron Morgan, Willi Jahnen‐Dechent, Sergio Bertazzo   +5 more
wiley   +1 more source

Assessing the influence of matcha green tea extract on NF-κB/MAPK signaling pathway activation in rats: A study on irradiation-induced acute hepatic inflammatory response

Phytomedicine Plus
Background: Numerous forms of cancer are frequently treated with radiation therapy, which provides substantial benefits in tumor control. However, adverse effects, particularly the development of severe hepatitis, may render radiation therapy ineffective.
Noha Sayed Hamed, Eithar K. El Adham, Amal I. Hassan   +2 more
doaj   +1 more source

Engineering Aging: Approaches to Model and Deconstruct Biological Complexity

Advanced Materials, EarlyView.
The macro‐experiences of aging are the result of an accumulation of micro‐changes that occur over time. Abstract The disparity between the global increase in life expectancy and the steady decline in health outcomes with age has been a major driver for developing new ways to research aging.
Habib Joukhdar, Sunny Shinchen Lee, Thomas R. Cox, Yu Suk Choi, Steven G. Wise, Jennifer L. Young, Giselle C. Yeo, Khoon S. Lim   +7 more
wiley   +1 more source

Biocatalytic Construction of a Chemical Exchange Saturation Transfer Magnetic Resonance Imaging Nucleoside Probe: Synthesis and Evaluation of 5‐Methyl‐5,6‐Dihydrothymidine

Advanced Synthesis &Catalysis, EarlyView.
Al‐Hilfi et al. present a biocatalytic strategy for synthesizing 5‐methyl‐5,6‐dihydrothymidine (5‐MDHT), a sensitive MRI contrast agent. The study demonstrates that recombinant enzyme catalysis offers an efficient, sustainable, and eco‐friendly alternative to traditional chemical synthesis for producing clinically relevant imaging probes.
Aimen Al‐Hilfi, E. Alejandro Castellanos Franco, Connor J. Grady, Zinia Mohanta, Michael T. McMahon, Milana Bazayeva, Zhen Li, Kenneth M. Merz Jr., Assaf A. Gilad   +8 more
wiley   +1 more source

Tandem Dye-Doped Nanoparticles for NIR Imaging via Cerenkov Resonance Energy Transfer

Frontiers in Chemistry, 2020
The detection of the Cerenkov radiation (CR) is an emerging preclinical imaging technique which allows monitoring the in vivo distribution of radionuclides.
Damiano Genovese, Luca Petrizza, Luca Prodi, Enrico Rampazzo, Francesco De Sanctis, Antonello Enrico Spinelli, Federico Boschi, Nelsi Zaccheroni   +7 more
doaj   +1 more source

A program for calculating optimum dimensions of alpha radioisotope capsules exposed to varying stress and temperature [PDF]

Method and computer program for calculating creep and optimizing dimensions of capsules filled with alpha-emitting radioisotopes and exposed to varying stress and ...
Nichols, J. P., Winkler, D. R.
core   +2 more sources