Facile fabrication and application of near-IR light-responsive drug release system based on gold nanorods and phase change material

Literature Information

Publication Date 2014-10-07
DOI 10.1039/C4TB01631A
Impact Factor 6.331
Authors

Junseok Lee, Cherlhyun Jeong, Won Jong Kim


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Abstract

Near-IR (NIR)-responsive drug delivery systems have received enormous attention because of their good biocompatibility and the high biological penetration of NIR. This work describes the facile fabrication and anticancer effect of a NIR-responsive drug delivery system based on the nano-assembly of mesoporous silica-coated gold nanorods (AuNR@mSiO2) and a phase change material (PCM). The core gold nanorods in AuNR@mSiO2 provided excellent NIR sensitivity, and the mesoporous silica shell provided an increased reservoir of loaded drug. The PCM was applied as both a thermosensitive gatekeeper and a medium for a hydrophobic anticancer drug. The photothermal effect of the AuNRs under NIR irradiation facilitated a rapid release of the drug through the temperature-sensitive phase transition of PCM at just above body temperature. An enhanced anticancer effect was observed against various cell lines, and intracellular release of the drug was easily monitored by live cell imaging. Our system does not require any complicated synthetic methods for fabrication, and PCM is easily capable of solubilizing various hydrophobic drugs. Therefore, this system has significant potential for broad application in the biomedical field as a delivery system for hydrophobic drugs with NIR-responsive behavior.

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Source Journal

Journal of Materials Chemistry B

Journal of Materials Chemistry B
CiteScore: 12
Self-citation Rate: 4.9%
Articles per Year: 831

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry B are listed below. This list is neither exhaustive nor exclusive. Antifouling coatings Biocompatible materials Bioelectronics Bioimaging Biomimetics Biomineralisation Bionics Biosensors Diagnostics Drug delivery Gene delivery Immunobiology Nanomedicine Regenerative medicine & Tissue engineering Scaffolds Soft robotics Stem cells Therapeutic devices image block All articles published in Journal of Materials Chemistry B from 2019 onwards will be indexed in MEDLINE®. Articles that primarily focus on providing insight into the underlying science and performance of biomaterials within a biological environment are more suited to our companion journal, Biomaterials Science.

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