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In chemistry, polyvalency (or polyvalence, multivalency) is the property of molecules and larger species, such as antibodies, medical drugs, and even nanoparticles surface-functionalized with ligands, like spherical nucleic acids, that exhibit more than one supramolecular interaction.
Polyvalence or polyvalent may refer to: Polyvalency (chemistry), chemical species, generally atoms or molecules, which exhibit more than one chemical valence; Polyvalence (music), the musical use of more than one harmonic function of a tonality simultaneously; Polyvalent antibody, a group of antibodies that have affinity for various antigens
This page was last edited on 4 August 2020, at 06:24 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Polyvalence or multivalence refers to species that are not restricted to a specific number of valence bonds. Species with a single charge are univalent (monovalent). For example, the Cs + cation is a univalent or monovalent cation, whereas the Ca 2+ cation is a divalent cation, and the Fe 3+ cation is a trivalent cation.
The Vietnamese Wikipedia initially went online in November 2002, with a front page and an article about the Internet Society.The project received little attention and did not begin to receive significant contributions until it was "restarted" in October 2003 [3] and the newer, Unicode-capable MediaWiki software was installed soon after.
Temple of Literature, Hanoi, the temple hosts the Imperial Academy (Quốc Tử Giám, 國子監), Vietnam's first university. This is a list of universities in Vietnam.The public higher education system in Vietnam basically consists of 2 levels: university system (called đại học) and university (usually specialize in a fixed scientific field; called trường đại học).
Monoammonium phosphate crystals are piezoelectric, a property required in some active sonar transducers (the alternative being transducers that use magnetostriction).In the 1950s ADP crystals largely replaced the quartz and Rochelle salt crystals in transducers because they are easier to work than quartz and, unlike Rochelle salt, are not deliquescent.
In Chinese, characters for the elements are the last officially created and recognized characters in the Chinese writing system.Unlike characters for unofficial varieties of Chinese (e.g., written Cantonese) or other now-defunct ad hoc characters (e.g., those by the Empress Wu), the names for the elements are official, consistent, and taught (with Mandarin pronunciation) to every Chinese and ...