Aerosol transmission of COVID-19 is the subject of ongoing policy debate. Characterizing aerosol produced by people with COVID-19 is critical to understanding the role of aerosols in transmission. We investigated the presence of virus in size-fractioned
Recombinant bacteria were selected by the alpha complementation method and their growth ability in the presence of ampicillin. These were confirmed by PCR using MangoTaq DNA polymerase and internal primers for the gene (intdir: 5′ TGTGGGTGGCGAGAGTG 3′ (17 bp), and intrev: 5′ ATATTTCCAT...
The potential for viral lysis of marine bacteria in seawater enriched with the virus size fraction from seawater was investigated in seawater samples from Long Island Sound, the E Pacific Ocean and the Caribbean Sea. A dominant bacterial mortality agent in the seawater concentrate was bacteriophage,...
This paper uses a mathematical model of fluorescent biological particles composed of bacteria and/or proteins (mostly as in Hill et al., 2013 [23]) to investigate the size-dependence of the total fluorescence emitted in all directions. The model applies to particles which have negligible reabsorpt...
This paper evaluates the aggregation behavior of a potential drug and gene delivery system that combines branched polyethyleneimine (PEI), a positively-charged polyelectrolyte, and elastin-like polypeptide (ELP), a recombinant polymer that exhibits lower critical solution temperature (LCST). The LCST beh...
breakthrough came through the development of three nucleic-acid-based assays: reverse transcription-polymerase chain reaction (RT-PCR), reverse transcription loop-mediated isothermal amplification (RT-LAMP), and real-time RT-PCR, specifically designed for detecting the Japanese encephalitis virus in ...
Our flow cytometry analysis revealed at least three viral groups (referred to as virus-like particles 1, 2, and 3) that exhibited distinctive dynamics suggestive of different host types. Phage-induced bacterial mortality varied between 6.1% (June) and 33.2% (October) in Lake Bourget and between...
The Asia-Pacific Feed Vitamins Market is expected to reach USD 592.90 million in 2024 and grow at a CAGR of 4.30% to reach USD 731.72 million by 2029. Adisseo, BASF SE, Cargill Inc., DSM Nutritional Products AG and Lonza Group Ltd. are the major companie
Changes in the chemical structure of the bilirubin can cause stool to turn green or yellow. Yellow stool also may occur if the stool is dilute or if there is a reduction in the amount of bilirubin produced by theliver. Bacteria anddigestive enzymesin the intestine can act on the bilirubin ...
This groups the sequences on the basis of evolutionary relationship among bacteria, algae and eukaryotes and provides a useful platform for protein classification of unsequenced organisms20. The analysis suggested that ovule development in litchi involved transcriptional, post transcriptional and metabolism ...