covalence

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Related to covalently: covalently closed circular DNA

covalence

 [ko-va´lens]
1. the number of electron pairs an atom can share with other atoms.
2. one or more chemical bonds formed by sharing of electron pairs between atoms. adj., adj cova´lent.

co·va·lence

(kō-vālĕns)
Number of pairs of electrons an atom can share with other atoms.
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References in periodicals archive ?
There is some evidence that covalently bound ceramides could be among the ceramidase substrates.
Although covalently bound azobenzenes show extremely nice switching behavior combined with a suitable structure [8, 9], they have the problem of being more toxic and a covalent binding is generally a more complex surface coating procedure.
(3) However, the decomposition temperature of film cured with PIH is higher than that of the corresponding film because the covalently crosslinking density is increased by the reaction between the hydroxyl group of PUA and the NCO group of PIH.
However, the covalently crosslinked ALG-H hydrogels overcome this shortcoming, and they are found to be more suitable as drug carriers for controlled release than calcium alginate hydrogel.
When seeded on top of two-dimensional covalently cross-linked gels, mesenchymal stem cells spread and pulled on the material differently depending on how stiff it was.
The active toxic A-chain is covalently linked via a disulfide bond to the sugar binding B-chain, this bond being biologically important as the individual chains are biologically inactive.
The cationic polymers are not substantially covalently bound to the superabsorbent polymer particles.
Amit Gupta and colleagues found that when the nanoparticles were excited by an RF field the temperature rise was the same whether the sensors were mixed with the nanoparticles or covalently bonded to them.
As a result, the coating is covalently attached to the substrate, giving superb adhesion and durability.
ABSTRACT--Precursor gels containing covalently incorporated lead thiolate complexes have been prepared using the bifunctional linker molecule, 3-mercaptopropyltrimethoxysilane along with typical sol-gel processing techniques.
Called the covalently linked immunomagnetic separation/ adenosine triphosphate (Cov-IMS/ATP) technique, the portable process uses magnetic beads linked covalently to antibodies that bind FIB.
It is also believed to decrease ccc DNA (covalently closed circular DNA, which is a template DNA for viral replication) in the liver cells.