A team led by Prof. Dr. Han Sun from the Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) has elucidated an important mechanism in the function of TREK channels at an atomic level. The results, published in ...
Molecular & Computational biology
8 hours ago
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5
The challenge of internalizing impermeable molecules into cells persists in drug development, particularly concerning water-soluble bioactive compounds that cannot diffuse across the cell membrane. To overcome this problem, ...
Biochemistry
Jul 8, 2024
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1
Reducing carbon dioxide (CO₂) emissions is a crucial step towards mitigating climate change and protecting the environment on Earth. One proposed technology for reducing CO₂ emissions, particularly from power plants and ...
Oxygen is essential for life on Earth, but it also gives rise to free radicals, unstable molecules that can damage cells. Antioxidants are chemical compounds that protect cells by neutralizing free radicals. The quintessential ...
Cell & Microbiology
Jul 2, 2024
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0
Researchers have synthesized tannic acid-coated magnetic beads capable of extracting membrane vesicles called "exosomes" from biological fluids with 60% efficiency. This novel method will make it easier and faster to isolate ...
Biochemistry
Jul 1, 2024
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39
Terpenoids, such as α-farnesene, are natural compounds widely used in flavoring agents, fragrances, and even in biofuels. Traditionally, α-farnesene is extracted from plants, and hence their production may suffer from low ...
Biotechnology
Jul 1, 2024
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0
Researchers at the Department of Inorganic and Physical Chemistry (IPC), Indian Institute of Science (IISc), have developed an enzymatic platform that can efficiently transform naturally abundant and inexpensive fatty acids ...
Biochemistry
Jun 28, 2024
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75
Gold particles of the size of billionths of a meter are lethal to cancer cells. This fact has been known for a long time, as has a simple correlation: The smaller the nanoparticles used to fight the cancer cells, the faster ...
Bio & Medicine
Jun 27, 2024
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38
Researchers have gained new knowledge of how drugs bind to connexin molecules. These molecules form channels that allow neighboring cells to send direct messages to one another. Dysfunctions of these channels are involved ...
Cell & Microbiology
Jun 26, 2024
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6
A team of researchers has achieved a breakthrough in the development of anion exchange membranes (AEMs). They designed a novel spiro-branched polymeric membrane that incorporates highly connected sub-nanometer microporous ...
Polymers
Jun 25, 2024
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173
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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