Cancer cells are characterised by the ability to evade apoptosis, a type of programmed cell death that allows the organism to remove damaged cells. Many studies devoted to new chemotherapy treatments aim to induce apoptosis ...
Apr 17, 2019
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Researchers have discovered that a family of lipids (fats) contribute to the development of a serious aortic disease, by driving clotting in the blood vessel wall.
Apr 04, 2019
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Cancer cells demand enormous amounts of molecular "food" to survive and grow, and a study published March 27 online in Nature by researchers at The University of Texas MD Anderson Cancer Center may have identified a new approach ...
Mar 27, 2019
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In a great stride toward finding an effective treatment for early-stage neurodegenerative diseases, UC Santa Barbara neurobiologist Kenneth S. Kosik and collaborators have uncovered a "druggable" mechanism of pathological ...
Mar 27, 2019
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Scientists have long known that tumors have many pockets of high acidity, usually found deep within the tumor where little oxygen is available. However, a new study from MIT researchers has found that tumor surfaces are also ...
Mar 20, 2019
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An approved drug normally used to treat fungal infections could also do the job of a protein channel that is missing in the lungs of people with cystic fibrosis, operating as a prosthesis on the molecular scale, says new ...
Mar 13, 2019
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Loud sounds can impair hearing for a short time. Researchers at Linköping University, Sweden, have discovered a mechanism that explains how this happens. Their results are presented in the journal Proceedings of the National ...
Mar 08, 2019
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The aggregation of alpha-synuclein proteins in Parkinson's disease and tau proteins in Alzheimer's disease is intimately linked to the progression of these neurodegenerative diseases. These aggregates propagate from one neuronal ...
Mar 08, 2019
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The release of neurotransmitters and hormones in the body is tightly controlled by complex protein machinery embedded in cell membranes.
Mar 08, 2019
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Atherosclerosis is a tough problem—arteries get thicker and stiffer, which can lead to heart disease and stroke, but it is not known precisely how cholesterol causes this thickening. Cholesterol is a tiny fat molecule that ...
Mar 01, 2019
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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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