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  • Title: NIR triggered liposome gold nanoparticles entrapping curcumin as in situ adjuvant for photothermal treatment of skin cancer.
    Author: Singh SP, Alvi SB, Pemmaraju DB, Singh AD, Manda SV, Srivastava R, Rengan AK.
    Journal: Int J Biol Macromol; 2018 Apr 15; 110():375-382. PubMed ID: 29195800.
    Abstract:
    We report the synthesis of a biodegradable liposome gold nanoparticles for curcumin (Au-Lipos Cur NPs) delivery. This entrapped curcumin served as an in situ adjuvant for photothermal therapy. Curcumin was loaded in Au-Lipos NPs with an encapsulation efficiency of ∼70%. The gold coating enabled the NPs to specifically absorb NIR light (780nm) by virtue of Surface Plasmon Resonance (SPR) and this light energy was converted to heat. The generated heat destabilized the liposomal core enhancing the release of encapsulated curcumin. Photothermal transduction efficacy of Au-Lipos NPs (loaded with curcumin) showed a significant temperature rise upon laser irradiation causing irreversible cellular damage. In vitro photothermal effect and intracellular uptake was evaluated in B16 F10 (melanoma) cell line. Au-Lipos Cur NPs showed significantly enhanced uptake when compared with free curcumin. Enhancement in cancer cell cytotoxicity was observed in Au-Lipos Cur NPs treated group upon laser irradiation owing to curcumin. Our findings indicate that curcumin could serve as a potential in situ adjuvant for photothermal therapy of melanoma.
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