title: Responsive delivery of drug cocktail via mesoporous silica nanolamps.
abstract: After a substantial advancement in single drug nanocarrier, nanomedicine now demands an integration of nanotechnology with combination therapy to achieve synergistic therapeutic effects. In this respect, a smart and multiple drug shuttling nanotheranostic system is developed which transport diverse kinds of anticancer drugs to cancer cells in a controlled and responsive manner respectively. Synthetically, a significantly high dose of hydrophobic camptothecin (CPT) is first loaded into the porous structure of quantum dots (CdS) coupled mesoporous silica nanocomposite. Subsequently, fluorescent doxorubicin (DOX) molecules are exclusively anchored onto the surface of CdS; as a result, the fluorescence of both CdS and DOX is quenched. Upon exposing to mildly acidic conditions, the fluorescence of both species is recovered, such fluorescent "on-off" states provides an added opportunity to real time sense drug release. In-vitro cell experiment reveals an excellent anticancer efficacy of drug cocktail, merely 3 μg/ml concentration of multiple drugs loaded nanocarrier reduces the cell viability to 30%. Furthermore, confocal imaging indicates a successful release of both therapeutic entities. We visualize that our newly fabricated multifunctional double drug-carrying nanoparticles can be a valuable addition to next generation of materials that simultaneously deliver cocktail of drugs with imaging functionality.
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China; College of Life Science, Jilin University, Changchun 130012, PR China.
authors.forename: Faheem
authors.initials: F
authors.lastname: Muhammad
authors.affiliation: College of Construction Engineering, Jilin University, Changchun 130026, PR China.
authors.forename: Mingyi
authors.initials: M
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors.forename: Aifei
authors.initials: A
authors.lastname: Wang
authors.affiliation: College of Life Science, Jilin University, Changchun 130012, PR China.
authors.forename: Jianyun
authors.initials: J
authors.lastname: Zhao
authors.affiliation: College of Life Science, Jilin University, Changchun 130012, PR China.
authors.forename: Wenxiu
authors.initials: W
authors.lastname: Qi
authors.affiliation: College of Life Science, Jilin University, Changchun 130012, PR China.
authors.forename: Yingjie
authors.initials: Y
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China; Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia. Electronic address: zhugs@jlu.edu.cn.
authors.forename: Guangshan
authors.initials: G
authors.lastname: Zhu
mesh_terms: D000970:Antineoplastic Agents / Q000008:administration & dosage* / Q000494:pharmacology; D019187:Cadmium Compounds / Q000737:chemistry*; D002166:Camptothecin / Q000008:administration & dosage* / Q000494:pharmacology; D045744:Cell Line, Tumor; D003692:Delayed-Action Preparations / Q000737:chemistry; D004317:Doxorubicin / Q000008:administration & dosage* / Q000494:pharmacology; D005453:Fluorescence; D006801:Humans; D006863:Hydrogen-Ion Concentration; D053761:Nanocomposites / Q000737:chemistry*; D009369:Neoplasms / Q000188:drug therapy; D016062:Porosity; D045663:Quantum Dots / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry*
chemical_list: D000970:Antineoplastic Agents; D019187:Cadmium Compounds; D003692:Delayed-Action Preparations; D013440:Sulfides; C034939:cadmium sulfide; D012822:Silicon Dioxide; D004317:Doxorubicin; D002166:Camptothecin
keywords: Controlled release; Drug cocktail; Image-guided therapy; Mesoporous silica; Quantum dots