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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Critical Reviews™ in Therapeutic Drug Carrier Systems
Импакт фактор: 2.9 5-летний Импакт фактор: 3.72 SJR: 0.736 SNIP: 0.551 CiteScore™: 2.43

ISSN Печать: 0743-4863
ISSN Онлайн: 2162-660X

Выпуски:
Том 36, 2019 Том 35, 2018 Том 34, 2017 Том 33, 2016 Том 32, 2015 Том 31, 2014 Том 30, 2013 Том 29, 2012 Том 28, 2011 Том 27, 2010 Том 26, 2009 Том 25, 2008 Том 24, 2007 Том 23, 2006 Том 22, 2005 Том 21, 2004 Том 20, 2003 Том 19, 2002 Том 18, 2001 Том 17, 2000 Том 16, 1999 Том 15, 1998 Том 14, 1997 Том 13, 1996 Том 12, 1995

Critical Reviews™ in Therapeutic Drug Carrier Systems

DOI: 10.1615/CritRevTherDrugCarrierSyst.2016014850
pages 107-158

Chitosan Nanoparticles Prepared by Ionotropic Gelation: An Overview of Recent Advances

Kashappa Goud Desai
Biopharmaceutical Product Sciences, GlaxoSmithKline, 709 Swedeland Road, King of Prussia, PA 19406

Краткое описание

The objective of this review is to summarize recent advances in chitosan nanoparticles prepared by ionotropic gelation. Significant progress has occurred in this area since the method was first reported. The gelation technique has been improved through a number of creative methodological modifications. Ionotropic gelation via electrospraying and spinning disc processing produces nanoparticles with a more uniform size distribution. Large-scale manufacturing of the nanoparticles can be achieved with the latter approach. Hydrophobic and hydrophilic drugs can be simultaneously encapsulated with high efficiency by emulsification followed by ionic gelation. The turbulent mixing approach facilitates nanoparticle formation at a relatively high polymer concentration (5 mg/mL). The technique can be easily tuned to achieve the desired polymer/surface modifications (e.g., blending, coating, and surface conjugation). Using factorial-design-based approaches, optimal conditions for nanoparticle formation can be determined with a minimum number of experiments. New insights have been gained into the mechanism of chitosan−tripolyphosphate nanoparticle formation. Chitosan nanoparticles prepared by ionotropic gelation tend to aggregate/agglomerate in unfavorable environments. Factors influencing this phenomenon and strategies that can be adopted to minimize the instability are discussed. Ionically cross-linked nanoparticles based on native chitosan and modified chitosan have shown excellent efficacy for controlled and targeted drug-delivery applications.


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