NANOTECNOLOGIA: POLÍMEROS RESPONSIVOS E DRUG DELIVERY
NANOTECNOLOGIA: POLÍMEROS RESPONSIVOS E DRUG DELIVERY
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DOI: https://doi.org/10.22533/at.ed.5722410091
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Palavras-chave: sistemas de liberação de medicamentos; polímeros responsivos; nanotecnologia.
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Keywords: drug delivery systems; responsive polymers; nanotechnology.
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Abstract: This review explores drug delivery systems based on responsive polymers, providing a detailed exploration of their applications triggered by various stimuli. The main objective is to categorize and elucidate the mechanisms of action of pH-responsive, temperature-responsive, redox-responsive, enzyme-responsive polymers, and non-biological stimuli, providing information on their roles in controlled drug release. pH-sensitive polymers, exemplified by polyacrylic acid and chitosan, exhibit sensitivity to different pH levels in specific regions of the body, facilitating precise and targeted drug release. Temperature-responsive polymers, such as poly(N-isopropylacrylamide) and polyethylene glycol, allow controlled drug release modulated by temperature variations. Redox-responsive nanomaterials efficiently explore reactive oxygen species, adapting their properties based on changes in redox potential to influence drug release. Enzyme-responsive polymers, driven by enzymatic stimuli, promise selective and efficient drug release, especially in biomedical applications. The review further explores polymers responsive to non-biological stimuli, highlighting light and temperature-sensitive systems. Light-sensitive polymers respond to specific wavelengths, with the potential for targeted drug release using ultraviolet and near-infrared light. Temperature-sensitive polymers, in response to internal or external heat sources, offer controlled drug release, especially beneficial in hyperthermia-based applications. By emphasizing the applications of these polymers in biodegradable and non-biodegradable contexts, the review underscores the potential of natural polymers like chitosan and synthetic polymers like poly(ε-caprolactone) in drug delivery. In conclusion, continuous advances in responsive polymer research aim to revolutionize drug therapy, offering personalized and efficient drug delivery systems with the potential to reduce side effects and enhance therapeutic outcomes.
- Wesley Ferreira de Moraes Brandão
- Lucas Andrade Oliveira Cavalcante
- Natan Cordeiro da Silva
- Karl Marx Santana da Silva
- Bruna Sthephany dos Santos Marinho
- Natali de Franca Nibbering Santos
- Joana Michelly Ferreira de Moura
- Ricardo Yara
- Rosa Valéria da Silva Amorim