Redox approaches derived Tin (IV) oxide nanoparticles/graphene nanocomposites as the near-infrared absorber for selective human prostate cancer cells destruction

Abstract

ArticleRedox approaches derived Tin (IV) oxide nanoparticles/graphene nanocomposites as the near-infrared absorber for selective human prostate cancer cells destruction Abstract In this paper, Tin (IV) oxide nanoparticles/graphene (SnO 2 /GR) nanocomposites were prepared via vacuum thermo treatment of Tin (0) and graphene oxide (GO). A redox reaction would occur readily in this process, in which the novel oxygen donor: GO could act as the oxidizing agent to oxidize Tin (0) to Tin (IV), meanwhile, the graphene precursor: GO would be simultaneously reduced to graphene by Tin (0) readily. The resulted composites were characterized by Fourier transform infrared spectrometry, scanning electron microscopy, and X-ray diffraction spectroscopy ect.. The novel SnO 2 /GR nanocomposites could combine both advantages of inorganic metal nanoparticles and graphene for near infrared spectroscopy (NIR) light absorption to generate heat, which fosters SnO 2 /GR a special candidate for photothermal ablation therapy (PTA) with NIR. Further investigations show that the SnO 2 /GR nanocomposites with NIR features could provide viable option for enhancing the thermal deposition and specificity of hyperthermia treatments for elimination of human prostate cancer (PC3).Citation: J S. Cheng, et al. Redox approaches derived Tin (IV) oxide nanoparticles/graphene nanocomposites as the near-infrared absorber for selective human prostate cancer cells destruction.

UV/O3 Generated Graphene Nanomesh: Formation Mechanism, Properties, and FET Studies

“…Graphene oxide (GO) was first produced through a modified Hummer’s method by reacting natural graphite powder in a mixture of NaNO 3 , H 2 SO 4 , and KMnO 4 . − After the reaction, H 2 O 2 was added to the system. The yellow suspension was filtered and washed for three times using HCl and then dispersed in deionized H 2 O.…”

“…For example, Soli ́s-Fernańdez et al systematically investigated the oxidation behavior of reduced graphene oxide (rGO) by thermal oxidation in air, microwave oxygen plasma, and ultraviolet-generated ozone. 9,10,38 ozone generator. 39 However, their work mainly focused on the morphology changes and formation process discussions.…”

“…Since the first discovery of monolayer graphene (mechanical exfoliation of graphite), a great surge of research in graphene has emerged in different fields such as condensed-matter physics, material science, nanoelectronics, and biomedical engineering. − Graphene, which is made up of 100% sp 2 -hybridized carbon atoms arranged in a honeycomb lattice, possesses a range of remarkable properties including high carrier mobility, thermal conductivity, high values of Young’s modulus, and an anomalous quantum Hall effect . These intriguing characteristics make graphene become a promising “star” material in the exploration of fundamental and application science. − However, due to the absence of energy bandgap, the potential applications in electronics, optoelectronics, and biomedical engineering are largely hindered .…”

“…Since the first discovery of monolayer graphene (mechanical exfoliation of graphite), a great surge of research in graphene has emerged in different fields such as condensed-matter physics, material science, nanoelectronics, and biomedical engineering. − Graphene, which is made up of 100% sp 2 -hybridized carbon atoms arranged in a honeycomb lattice, possesses a range of remarkable properties including high carrier mobility, thermal conductivity, high values of Young’s modulus, and an anomalous quantum Hall effect . These intriguing characteristics make graphene become a promising “star” material in the exploration of fundamental and application science. − However, due to the absence of energy bandgap, the potential applications in electronics, optoelectronics, and biomedical engineering are largely hindered . Therefore, looking for effective ways to open up the bandgap is a challenging task. , Due to the influences of the quantum confinement, edge, and localization effects to graphene bandgap, great efforts have been devoted to tailoring graphene sheets into a confined geometry such as nanoribbons, − quantum dots, , and nanomeshes − or doping some heterogeneous atoms (O, N, and Mn) or molecules into the graphene parent material. − These well-designed structures are effective in tuning and controlling the semiconducting properties of graphene.…”

Synthesis and characterization of NIR-responsive Aurod@pNIPAAm-PEGMA nanogels as vehicles for delivery of photodynamic therapy agents

“…Among them, gold nanorods (AuNRs) are of particular interest due to their unique optical properties. With the different aspect ratios and the resulting longitudinal surface plasmon resonance (SPR), AuNRs exhibit an absorption band in the near-infrared (NIR) region [6], which conduces to higher photothermal conversion and also shows significant biomedical application in view of the penetration of NIR light into biological tissues [7,8]. …”