However, the addition of rejuvenators will reduce the molecular polarity and improve damage resistances of asphalt (Ziari et al., 2019). Besides, rejuvenators containing hydroxyl or carboxyl have higher hydrophilia since –OH groups in rejuvenator molecules are similar to that in water molecules (...
*Theme/Title: Polarity II: Molecular Shape * Description/Instructions Polarity is also determined by the shape of a molecule. Molecules that are symmetrical tend to be nonpolar. Molecules that are asymmetrical tend to be polar. Polarity is like a game of tug-o-war. If there is an equal ...
The mechanics behind cell polarity The generation of cell polarity is one of the most intriguing symmetry-breaking events in biology. It is involved in almost all physiological and developme... A Asnacios,O Hamant - 《Trends in Cell Biology》...
Polarized tissues, such as tubular epithelia, form and are regulated by various mechanisms, which enable the formation of luminal structures. The extracellular matrix is a key determinant of tissue-polarity establishment, orientation and maintenance. Abstract How do animal cells assemble into tissues and...
is a sulfur heteroatom and its position in a resin molecule. Having sulfur in the resin structure slightly increases a resin molecule's polarity in the case of a similar molecular structure100. The primary interaction between surfactants and resins in our cases is driven by hydrophobic and π–...
Another application is separation and purification of substances like proteins and polymers. Differences in molecular size, shape, charge, polarity and affinity can be used for separation in chromatography columns packed with gel beads. Small molecules will diffuse into the gel beads and become ...
Very little is known about how intervertebral disc (IVD) is formed or maintained. Members of the TGF-β superfamily are secreted signaling proteins that regulate many aspects of development including cellular differentiation. We recently showed that dele
The WNT signaling pathway governs critical processes, including determining cell polarity, cell fate, migration, and proliferation. The WNT protein family consists of glycoproteins that are secreted and bind to Frizzled receptor (FZD) proteins, which have seven transmembrane segments. This binding trigger...
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