title: High-throughput synthesis of single-layer MoS2 nanosheets as a near-infrared photothermal-triggered drug delivery for effective cancer therapy.
abstract: We report here a simple, high-yield yet low-cost approach to design single-layer MoS2 nanosheets with controllable size via an improved oleum treatment exfoliation process. By decorating MoS2 nanosheets with chitosan, these functionalized MoS2 nanosheets have been developed as a chemotherapeutic drug nanocarrier for near-infrared (NIR) photothermal-triggered drug delivery, facilitating the combination of chemotherapy and photothermal therapy into one system for cancer therapy. Loaded doxorubicin could be controllably released upon the photothermal effect induced by 808 nm NIR laser irradiation. In vitro and in vivo tumor ablation studies demonstrate a better synergistic therapeutic effect of the combined treatment, compared with either chemotherapy or photothermal therapy alone. Finally, MoS2 nanosheets can also be used as a promising contrast agent in X-ray computed tomography imaging due to the obvious X-ray absorption ability of Mo. As a result, the high-throughput oleum treatment exfoliation process could be extended for fabricating other 2D nanomaterials, and the NIR-triggered drug release strategy was encouraging for simultaneous imaging-guided cancer theranostic application.
authors.affiliation: CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Wenyan
authors.initials: W
authors.lastname: Yin
authors.forename: Liang
authors.initials: L
authors.lastname: Yan
authors.forename: Jie
authors.initials: J
authors.lastname: Yu
authors.forename: Gan
authors.initials: G
authors.lastname: Tian
authors.forename: Liangjun
authors.initials: L
authors.lastname: Zhou
authors.forename: Xiaopeng
authors.initials: X
authors.lastname: Zheng
authors.forename: Xiao
authors.initials: X
authors.lastname: Zhang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Yong
authors.forename: Juan
authors.initials: J
authors.lastname: Li
authors.forename: Zhanjun
authors.initials: Z
authors.lastname: Gu
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Zhao
mesh_terms: D000818:Animals; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D048271:Chitosan / Q000737:chemistry; D004220:Disulfides / Q000737:chemistry* / Q000633:toxicity; D004317:Doxorubicin / Q000737:chemistry / Q000494:pharmacology; D004337:Drug Carriers / Q000737:chemistry* / Q000633:toxicity; D065546:Drug Liberation; D006461:Hemolysis / Q000187:drug effects; D006801:Humans; D007259:Infrared Rays; D051379:Mice; D008958:Models, Molecular; D008968:Molecular Conformation; D008982:Molybdenum / Q000737:chemistry* / Q000633:toxicity; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology; D013696:Temperature
chemical_list: D004220:Disulfides; D004337:Drug Carriers; D004317:Doxorubicin; D008982:Molybdenum; D048271:Chitosan; C082964:molybdenum disulfide