Volume 136, Issue 32 47831
Article

Temperature stimuli-responsive nanoparticles from chitosan-graft-poly(N-vinylcaprolactam) as a drug delivery system

Daniel Fernández-Quiroz

Corresponding Author

Daniel Fernández-Quiroz

Departamento de Investigación en Física, Universidad de Sonora, Hermosillo, Sonora 83000, Mexico

Correspondence to: D. Fernández-Quiroz ([email protected]); M. Pedroza-Montero ([email protected])Search for more papers by this author
Jorge Loya-Duarte

Jorge Loya-Duarte

Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, Hermosillo, Sonora 83000, Mexico

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Erika Silva-Campa

Erika Silva-Campa

Departamento de Investigación en Física, Universidad de Sonora, Hermosillo, Sonora 83000, Mexico

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Waldo Argüelles-Monal

Waldo Argüelles-Monal

Centro de Investigación en Alimentación y Desarrollo, Grupo de Investigación en Biopolímeros, Hermosillo, Sonora 83304, Mexico

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Andre-í Sarabia-Sainz

Andre-í Sarabia-Sainz

Departamento de Investigación en Física, Universidad de Sonora, Hermosillo, Sonora 83000, Mexico

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Armando Lucero-Acuña

Armando Lucero-Acuña

Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, Hermosillo, Sonora 83000, Mexico

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Teresa del Castillo-Castro

Teresa del Castillo-Castro

Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Hermosillo, Sonora 83000, Mexico

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Julio San Román

Julio San Román

Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), Madrid 28006, Spain

Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid 28029, Spain

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Jaime Lizardi-Mendoza

Jaime Lizardi-Mendoza

Centro de Investigación en Alimentación y Desarrollo, Grupo de Investigación en Biopolímeros, Hermosillo, Sonora 83304, Mexico

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Alexel J. Burgara-Estrella

Alexel J. Burgara-Estrella

Departamento de Investigación en Física, Universidad de Sonora, Hermosillo, Sonora 83000, Mexico

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Beatriz Castaneda

Beatriz Castaneda

Departamento de Física, Universidad de Sonora, Hermosillo, Sonora 83000, Mexico

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Diego Soto-Puebla

Diego Soto-Puebla

Departamento de Investigación en Física, Universidad de Sonora, Hermosillo, Sonora 83000, Mexico

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Martín Pedroza-Montero

Corresponding Author

Martín Pedroza-Montero

Departamento de Investigación en Física, Universidad de Sonora, Hermosillo, Sonora 83000, Mexico

Correspondence to: D. Fernández-Quiroz ([email protected]); M. Pedroza-Montero ([email protected])Search for more papers by this author
First published: 15 April 2019
Citations: 21
The authors declare no conflict of interest. D. Fernández-Quiroz and M. Pedroza-Montero conceived and designed the research and wrote the manuscript. D. Fernández-Quiroz and J. Loya-Duarte performed the experiments and physicochemical characterization. E. Silva-Campa designed and performed the cytotoxicity assays. W. Argüelles-Monal and J. San Román supervised the research and refined the manuscript for publication. T. del Castillo-Castro and J. Lizardi-Mendoza performed analysis and discussion of the results. A. Sarabia-Sainz performed drug delivery experiments. A. Lucero-Acuña performed drug delivery models. A. Burgara-Estrella performed the AFM experiments. B. Castaneda and D. Soto-Puebla contributed the reagents/materials and analytical tools. All authors read and approved the final manuscript.

ABSTRACT

This work describes the preparation of thermosensitive chitosan-graft-poly(N-vinylcaprolactam) nanoparticles by ionic gelation and their potential use as a controlled drug delivery system, using doxorubicin as a model drug. A systematic study of the effect of the main processing parameters on both the size and thermoresponsive behavior of nanoparticles was investigated. The size of the particles is strongly dependent on the length of the poly(N-vinylcaprolactam) grafted chains and the concentration of the copolymer and crosslinking agent solutions. The molecular structure of the copolymer plays an essential role in the phase transition temperature of the particles, which decreases with the length of PVCL grafted chain. The system displayed proper drug-association parameters, and the drug-loaded nanoparticles exhibited dose-dependent cytotoxicity. A significant increase in the doxorubicin delivery rate was observed above the phase transition temperature (40 °C). These features indicate that these nanoparticles are suitable for the development of a new thermally controlled anti-cancer drug delivery system. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47831.

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