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Charge-reversal Nanoparticles: Novel Targeted Drug Delivery Carriers

Charge-reversal Nanoparticles: Novel Targeted Drug Delivery Carriers

Xinli Chen, Lisha Liu, Chen Jiang

Acta Pharm Sin B. 2016 Jul;6(4):261-7.

PMID: 27471667

Abstract:

Spurred by significant progress in materials chemistry and drug delivery, charge-reversal nanocarriers are being developed to deliver anticancer formulations in spatial-, temporal- and dosage-controlled approaches. Charge-reversal nanoparticles can release their drug payload in response to specific stimuli that alter the charge on their surface. They can elude clearance from the circulation and be activated by protonation, enzymatic cleavage, or a molecular conformational change. In this review, we discuss the physiological basis for, and recent advances in the design of charge-reversal nanoparticles that are able to control drug biodistribution in response to specific stimuli, endogenous factors (changes in pH, redox gradients, or enzyme concentration) or exogenous factors (light or thermos-stimulation).

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