Lung cancer claims more lives each year than any other type of cancer worldwide. According to the World Health Organization, an estimated 1.8 million people died of lung cancer in 2020. Current treatments rely on one of two ...
Feb 1, 2023
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In order for migraine medication to be effective, it is vital that the active substance is released into the bloodstream immediately. The pills currently on the market today pass through the body's metabolism which means ...
Jan 26, 2023
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Increased levels of the antibody immunoglobulin A (IgA) are correlated with the manifestation of several diseases as well as African ancestry, according to findings published in Nature Communications. The findings provide ...
Jan 5, 2023
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A recent study by Dr. Xie Dong's group from Shanghai Institute of Nutrition and Health (SINH) revealed the important role of pancreatic progenitor cell differentiation and proliferation factor (PPDPF) in the development of ...
Dec 29, 2022
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Less known to the general public, mucosal vaccination via the mucus membranes could provide robust protection against SARS-CoV-2 infections. Immune cells in the nose and lungs are considered better prepared to encounter and ...
Dec 16, 2022
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A Yale study has found that exposure to the common antidepressant Prozac provoked an inflammatory response in human fetal membranes, also known as the amniotic sac.
Dec 16, 2022
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Professor Suh Byung-chang's research team of the Department of Brain Sciences, DGIST, announced on Wednesday, November 23 that they have identified the molecular mechanism for the activation of "voltage-dependent calcium ...
Dec 14, 2022
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Up to 15% of women of reproductive age in the United States suffer from endometriosis, a condition characterized by pelvic pain, menstrual cramps and infertility. Endometriosis develops when tissue like the lining on the ...
Dec 13, 2022
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Tech companies have developed many devices that work outside the body, such as cell phones, smart watches, tablets and hundreds of others. Inside the body, though? That's obviously trickier for several reasons, but power ...
Dec 8, 2022
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Nearly 20 years ago, scientists developed ways to stimulate or silence neurons by shining light on them. This technique, known as optogenetics, allows researchers to discover the functions of specific neurons and how they ...
Dec 7, 2022
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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.
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