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Critical Reviews™ in Therapeutic Drug Carrier Systems
IF: 2.9 5-Year IF: 3.72 SJR: 0.736 SNIP: 0.818 CiteScore™: 4.6

ISSN Print: 0743-4863
ISSN Online: 2162-660X

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Critical Reviews™ in Therapeutic Drug Carrier Systems

DOI: 10.1615/CritRevTherDrugCarrierSyst.v25.i5.10
pages 403-447

PEGylation: An Approach for Drug Delivery. A Review

Aviral Jain
Pharmaceutics Research Projects Laboratory, Department of Pharmaceutical Sciences, Dr. Hari Singh Gour Vishwavidyalaya, Sagar (M. P.) 470003, India
Sanjay Kumar Jain
Pharmaceutics Research Projects Laboratory, Department of Pharmaceutical Sciences, Dr. Hari Singh Gour Central University, Sagar (M.P.), India

ABSTRACT

The current review presents an update on polyethylene glycol (PEG), which is widely used as a covalent modifier of macromolecules. This review discusses the polymers suitable for conjugation, their conjugation methods, and their properties. Proteins and bioactive substances can be chemically modified by binding synthetic macromolecules of PEG to the surface of these biomolecules. Protein and peptide PEGylation improves the biopharmaceutical properties of drugs−that is, increased stability, increased resistance to proteolytic inactivation, decreased to nonexistent immunogenicity, increased circulatory lives, and low toxicity. These altered properties improve the delivery and efficacy of proteins.


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