divalent


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divalent

 [di-va´lent]
bivalent; having a valence of two.

bi·va·lent

(bī-vā'lent, biv'ă-lent),
1. Having a combining power (valence) of 2.
See also: tetrad. Synonym(s): divalent
2. In cytology, a structure consisting of two paired homologous chromosomes, each split into two sister chromatids, as seen during the pachytene stage of prophase in meiosis.
See also: tetrad.

divalent

(dī-vā′lənt)
adj.
1. Chemistry Having a valence of 2.
2. Immunology
a. Having two sites of attachment. Used of an antibody or antigen.
b. Containing antigens from two strains of a microorganism or virus. Used of a vaccine or serum.

bi·va·lent

(bī-vā'lĕnt)
1. Having a combining power (valence) of two.
Synonym(s): divalent.
2. cytology a structure consisting of two paired homologous chromosomes, each split into two sister chromatids, as seen during the pachytene stage of prophase in meiosis.
References in periodicals archive ?
Reeve RC, Bower CA (1960) Use of high-salt waters as a flocculant and source of divalent cations for reclaiming sodic soils.
Gelling and alginate cross-linking occurs by ion exchange between the sodium ions of the guluronic acids and the divalent cation of the gelling solution, forming the egg carton structure as shown in Figure 2.
Zinc is considered an adapted metal because it acts as a divalent cation without special geometric preference.
Chloride ion Flowback time content (ppm) Day 1 32000 Day 2 45000 Day 3 57000 Day 4 57000 Day 5 62000 Day 6 64000 Day 7 62000 Day 8 58000 Day 9 58000 Day 10 58000 Table 4: Gelation and cross-linking tests for removing different divalent metal ions.
Raghavachari, "Cluster models for the photoabsorption of divalent defects in silicate glasses: Basis set and cluster size dependence," Applied Physics Letters, vol.
Divalent metal ions (Mg and Ca) in solution with [Al.sup.3+] titrated with NaOH over 3-5 h yielded Mg-Al and Ca-Al layered double hydroxides, respectively.
This demonstrates that the drug release profile of pectin-based dosage forms strongly depends on the nature of the divalent cations used.
The Chemically Synthesized Divalent Vaccine Elicits High Titer Antibody in Mice.
Role of divalent cations in plasmid DNA adsorption to natural organic matter-coated silica surface.
The different affinities of divalent ions were reflected in the mechanical properties of the gels.
(20) Dietary avoidance of, or reduction in, foods that contain a high concentration of phytic acids, soy protein, tannins, oxalic acids, phosvitins, divalent cation supplements (Ca++, Zn++, MN++), and polyphenolic compounds.
Spectral Characteristics of RNase and RNAs Interaction with Divalent Metal Ions.