(Medical Xpress) -- A powerful topical preventative for HIV, the virus that causes AIDS, could soon be in the works thanks to a newly discovered molecular compound that research at Texas A&M University and the Scripps Research ...
Nov 24, 2011
8
0
As doctors and care providers work to reduce the spread of the new coronavirus and COVID-19, the disease it causes, people are trying to understand what to do if they receive a COVID-19 diagnosis. Lisa Maragakis, senior director ...
Mar 23, 2020
0
30
The Kidney Project, a national effort to develop an implantable bio-artificial kidney that could eliminate the need for dialysis, will announce a key milestone in a November 7, 2019 presentation at the American Society of ...
Nov 8, 2019
0
15503
Premature rupture of the amniotic sac can have devastating consequences, but scientists in Japan are studying instances when the damaged sac repairs itself—a phenomenon that requires cooperation of the developing fetus.
(HealthDay)—While rashes on the skin have long been tied to COVID-19, doctors in Spain report that rashes on the inside of the mouth are also occurring in some cases.
Jul 15, 2020
0
240
As the coronavirus spreads and fear grows, people are taking an abundance of precautions to keep from contracting it.
Mar 16, 2020
5
101
If you can't stand broccoli, celery or kale, you may be a supertaster, and it just might protect you from COVID-19.
May 25, 2021
2
46
In our increasingly health-conscious society, a new fad diet seems to pop up every few years. Atkins, Zone, Ketogenic, Vegetarian, Vegan, South Beach, Raw - with so many choices and scientific evidence to back each, it's ...
Dec 2, 2017
9
628
A team of researchers at Lund University in Sweden has developed a fluorescent variant of a molecule that inhibits cancer stem cells. Capturing images of the molecule entering a cell has enabled the researchers, using cell-biological ...
Jun 26, 2018
0
6
A peptide derived from the hepatitis C virus (HCV) kills a broad range of viruses while leaving host cells unharmed by discriminating between the molecular make-up of their membranes, reveals a study published January 5 in ...
Jan 5, 2016
0
215
A membrane is a layer of material which serves as a selective barrier between two phases and remains impermeable to specific particles, molecules, or substances when exposed to the action of a driving force. Some components are allowed passage by the membrane into a permeate stream, whereas others are retained by it and accumulate in the retentate stream.
Membranes can be of various thickness, with homogeneous or heterogeneous structure. Membrane can also be classified according to their pore diameter. According to IUPAC, there are three different types of pore size classifications: microporous (dp < 2nm), mesoporous (2nm < dp < 50nm) and macroporous (dp > 50nm). Membranes can be neutral or charged, and particles transport can be active or passive. The latter can be facilitated by pressure, concentration, chemical or electrical gradients of the membrane process. Membranes can be generally classified into three groups: inorganic, polymeric or biological membranes. These three types of membranes differ significantly in their structure and functionality.
This text uses material from Wikipedia, licensed under CC BY-SA
