4.5 Review

Stimuli-responsive Polymeric Nanosystems for Therapeutic Applications

Journal

CURRENT PHARMACEUTICAL DESIGN
Volume 28, Issue 11, Pages 910-921

Publisher

BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1381612827666211208150210

Keywords

pH-responsive; polymeric nanoparticles; drug delivery; temperature responsive; cancer; neurodegeneration

Funding

  1. Department of Pharmaceuticals (DoP), Ministry of Chemicals and Fertilizers, Govt. of India

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This study reviews the potential and behavior of stimuli-responsive drug delivery systems. Stimuli-responsive nanocarriers have the ability to efficiently deliver drugs to specific sites or targeted cells without drug leakage. These systems are effective for both hydrophilic and hydrophobic drugs and can release the drugs upon applied stimulus.
Background: Recent studies have been reported emerging polymeric nanoparticles as a promising particulate carrier system for controlled and targeted drug delivery. Stimuli-responsive nanocarriers have shown characteristics, such as high drug uptake at specific sites or targeted cells with an advantage of no drug leakage. These stimuli-responsive polymeric systems are used to functionalize nanocarriers, such as dendrimers, metallic nanoparticles, polymeric nanoparticles, liposomal nanoparticles, and quantum dots. Objective: The study reviews the potential of smart stimuli-responsive carriers for therapeutic application and their behavior in external or internal stimuli, like pH, temperature, redox, light, and magnetic field. These stimuli-responsive drug delivery systems exhibit different drug release patterns in in vitro and in vivo studies. Stimuli-responsive nanocarriers are useful for both hydrophilic and hydrophobic drugs and release them on applied stimulus. This review highlights the recent development in the physical properties of polymeric materials and their application in stimuli-responsive specific drug delivery. Conclusion: The stimuli (smart, intelligent, programmable) drug delivery systems provide site-specific drug delivery with potential therapy for cancer, neurodegenerative, and lifestyle disorders. The stimuli-responsive-based nanocarriers are developing at a fast pace, and there is a huge demand for biocompatible and biodegradable responsive polymers for effective and safe delivery.

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