polyelectrolyte

(redirected from Polycation)
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Related to Polycation: polyanion

pol·y·e·lec·tro·lyte

 (pŏl′ē-ĭ-lĕk′trə-līt′)
n.
A polymer, such as a protein or some polysaccharides, having ionic or ionizable constituents.

polyelectrolyte

(ˌpɒlɪɪˈlɛktrəˌlaɪt)
n
(Chemistry) chem a substance of polymeric molecules
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.polyelectrolyte - an electrolyte of high molecular weight
electrolyte - a solution that conducts electricity; "the proper amount and distribution of electrolytes in the body is essential for health"
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References in periodicals archive ?
First, the cleaned titanium substrate is immersed in polycation (e.g., PEI) to reach a stable positive charge; after removing unconsolidated polycation, the positive substrate is dipped into polyanion solution to obtain a negative charge, followed by the same rinsing procedures.
Taulelle, "Al30: A Giant Aluminum Polycation," Angewandte Chemie International Edition, vol.
Borsarelli, "Improvement of the amperometric response to l-lactate by using a cationic bioinspired thymine polycation in a bioelectrode with immobilized lactate oxidase," Sensors and Actuators B: Chemical, vol.
Amphiphilic copolymers are used as gene carriers where negatively charged cargo molecules (siRNA, mRNA, small protein or DNA) binds to the polycation through ionic interactions and polymers condense complex into sub-150-nm particles.
In fact, changing the order addition of polyanion and polycation solutions affected the formation of stable microparticles.
Molecular hurdles in polyfectin design and mechanistic background to polycation induced cytotoxicity.
Polycation TAs are macromolecular substances with positively charged surfaces that may include polylysine20 or protamine sulfate.18 With a strong positive/negative interaction SPIO/TA composites are able to adhere to the surface of cell membranes improve the phagocytosis of iron oxide particles and avoid aggregation of SPIO particles.21 For example Frank and colleagues mixed Ferumoxides (Feridex) with USPIO (MION-46 L) and added cationic TAs successfully raising the concentration of intracellular SPIO particles.
A biocompatible arginine-based polycation. Advanced Functional Materials 2011; 21:434-40.
Istrate, et al., "Interaction of gentamicin polycation with model and cell membranes," Bioelectrochemistry, Vol.
PEC technique for nanoparticles involves the controlled mixing of diluted polycation and polyanion solutions that gives the size range of 20 to 500 nm with various shapes such as spherical, toroid, and rod-like shapes or have a loose gel-like shape up to compact internal structure.
A related peptide, VIP, also uses these signaling pathways and cross-adapts with lysozyme and PACAP, suggesting that Tetrahymena are signaling through a generalized polycation receptor [15].
Tan and coworkers introduced ternary nucleic acid complexes, Liposome Polycation DNA (LPD) where nucleic acids are complexed by protamine before interaction with cationic liposomes to form a core nucleic acid complex surrounded by two lipid bilayers [155].