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Rittikulsittichai S, Kolhatkar AG, Sarangi S, et al. Multi-responsive hybrid particles: thermo-, pH-, photo-, and magneto-responsive magnetic hydrogel cores with gold nanorod optical triggers. Nanoscale. 2016;8(23):11851-61doi: 10.1039/c5nr09235c.
Rittikulsittichai, S., Kolhatkar, A. G., Sarangi, S., Vorontsova, M. A., Vekilov, P. G., Brazdeikis, A., & Randall Lee, T. (2016). Multi-responsive hybrid particles: thermo-, pH-, photo-, and magneto-responsive magnetic hydrogel cores with gold nanorod optical triggers. Nanoscale, 8(23), 11851-61. https://doi.org/10.1039/c5nr09235c
Rittikulsittichai, Supparesk, et al. "Multi-responsive hybrid particles: thermo-, pH-, photo-, and magneto-responsive magnetic hydrogel cores with gold nanorod optical triggers." Nanoscale vol. 8,23 (2016): 11851-61. doi: https://doi.org/10.1039/c5nr09235c
Rittikulsittichai S, Kolhatkar AG, Sarangi S, Vorontsova MA, Vekilov PG, Brazdeikis A, Randall Lee T. Multi-responsive hybrid particles: thermo-, pH-, photo-, and magneto-responsive magnetic hydrogel cores with gold nanorod optical triggers. Nanoscale. 2016 Jun 09;8(23):11851-61. doi: 10.1039/c5nr09235c. PMID: 27227963.
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Nanoscale. 2016 Jun 09;8(23):11851-61. doi: 10.1039/c5nr09235c.

Multi-responsive hybrid particles: thermo-, pH-, photo-, and magneto-responsive magnetic hydrogel cores with gold nanorod optical triggers.

Nanoscale

Supparesk Rittikulsittichai, Arati G Kolhatkar, Subhasis Sarangi, Maria A Vorontsova, Peter G Vekilov, Audrius Brazdeikis, T Randall Lee

Affiliations

  1. Department of Chemistry and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA. [email protected].
  2. Department of Physics and the Texas Center for Superconductivity, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA.
  3. Department of Chemical and Biomolecular Engineering, University of Houston, 4800 Calhoun Road, Houston, TX 77204-5003, USA.

PMID: 27227963 DOI: 10.1039/c5nr09235c

Abstract

The research strategy described in this manuscript harnesses the attractive properties of hydrogels, gold nanorods (Aurods), and magnetic nanoparticles (MNPs) by synthesizing one unique multi-responsive nanostructure. This novel hybrid structure consists of silica-coated magnetic particles encapsulated within a thermo-responsive P(NIPAM-co-AA) hydrogel network on which Aurods are assembled. Furthermore, this research demonstrates that these composite particles respond to several forms of external stimuli (temperature, pH, light, and/or applied magnetic field) owing to their specific architecture. Exposure of the hybrid particles to external stimuli led to a systematic and reversible variation in the hydrodynamic diameter (swelling-deswelling) and thus in the optical properties of the hybrid particles (red-shifting of the plasmon band). Such stimuli-responsive volume changes can be effectively exploited in drug-delivery applications.

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