A Facile One‐Pot Synthesis of a Two‐Dimensional MoS2/Bi2S3 Composite Theranostic Nanosystem for Multi‐Modality Tumor Imaging and Therapy

Wang, Shige; Li, Xiang; Chen, Yu; Cai, Xiaojun; Yao, Heliang; Gao, Wei; Zheng, Yuanyi; An, Xiao; Shi, Jianlin; Chen, Hangrong

doi:10.1002/adma.201500870

Cited by 394 publications

(246 citation statements)

References 47 publications

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“…15 As an important non-noble cocatalyst, MoS 2 is a highly promising candidate for photocatalysis and many other applications. [16][17][18][19][20] Thus, using MoS 2 is reasonable for strengthening the visible light photocatalytic performance of Bi 2 S 3 . [21][22][23][24] As a cocatalyst, the morphology and nanostructure of MoS 2 , for example, nanoparticles, 25 nanoclusters, 26 nanospheres 27 and nanosheets, 19,28 have considerable effects on the catalytic performance of MoS 2 -activated hybrids.…”

Section: Introductionmentioning

confidence: 99%

Layer-controlled growth of MoS2 on self-assembled flower-like Bi2S3 for enhanced photocatalysis under visible light irradiation

et al. 2016

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Metal sulfide semiconductors, such as molybdenum disulfide (MoS 2 ) and bismuth trisulphide (Bi 2 S 3 ), are of considerable interest for their excellent applications in photocatalysis and in many other fields. However, the controllable synthesis of MoS 2 /Bi 2 S 3 hybrid nanostructures remains a challenge. In this study, we report a unique sacrificial templating strategy for preparing layer-controlled MoS 2 on three-dimensional (3D) Bi 2 S 3 micro-flowers. For this approach, Bi 2 S 3 was utilized as a sacrificial template to regulate the ion exchange, and the dosage of molybdenum was adjusted to tune the dynamic formation, thus converting the MoS 2 nanosheets on the Bi 2 S 3 micro-flowers from monolayer to multilayer. Such a 3D flower-like hybrid nanostructure enables MoS 2 /Bi 2 S 3 to exhibit adsorption-promoted photocatalysis under visible light irradiation, especially for the excellent photodegradation of low-concentration organic pollutants, for example, azo dye and atrazine. The observed superiority of the 3D MoS 2 /Bi 2 S 3 was mainly attributed to the increased mass transfer, robust light-harvesting capacity, improved charge separation, lower oxygen-activation barrier and enhanced active oxygen yield. Our findings are of interest for the development of novel S-based photocatalysts and provide a new opportunity to efficiently remove low-concentration refractory pollutants.

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Section: Introductionmentioning

confidence: 99%

Layer-controlled growth of MoS2 on self-assembled flower-like Bi2S3 for enhanced photocatalysis under visible light irradiation

et al. 2016

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“…17 More interestingly, soybean phospholipid possesses an excellent biocompatibility and amphiphilicity and can form a stable biomembrane on the surface of nanomaterials. 29 Based on these merits, we explored a facile "thin-film" approach to encapsulating soybean phospholipid on the surface of MoS 2 nanosheets.…”

Section: Discussionmentioning

confidence: 99%

“…It has been demonstrated that the surface modification of nanomaterials can significantly influence their colloidal stability and biological behavior such as blood circulation durations, biodistribution, and excretion. 17,27 Therefore, it is of vital importance to modify nanomaterials with other polymers to obtain an organic/ inorganic composite/hybrid nanomaterial. Liu et al reported on the modification of chemical-exfoliated MoS 2 nanosheets with lipoic acid-modified PEG (LA-PEG) using a thiol reaction.…”

Section: Discussionmentioning

confidence: 99%

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Facile synthesis of soybean phospholipid-encapsulated MoS2 nanosheets for efficient in vitro and in vivo photothermal regression of breast tumor

Gong

Zhou

et al. 2016

IJN

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Two-dimensional MoS 2 nanosheet has been extensively explored as a photothermal agent for tumor regression; however, its surface modification remains a great challenge. Herein, as an alternative to surface polyethylene glycol modification (PEGylation), a facile approach based on “thin-film” strategy has been proposed for the first time to produce soybean phospholipid-encapsulated MoS 2 (SP-MoS 2 ) nanosheets. By simply vacuum-treating MoS 2 nanosheets/soybean phospholipid/chloroform dispersion in a rotary evaporator, SP-MoS 2 nanosheet was successfully constructed. Owing to the steric hindrance of polymer chains, the surface-coated soybean phospholipid endowed MoS 2 nanosheets with excellent colloidal stability. Without showing detectable in vitro and in vivo hemolysis, coagulation, and cyto-/histotoxicity, the constructed SP-MoS 2 nanosheets showed good photothermal conversion performance and photothermal stability. SP-MoS 2 nanosheet was shown to be a promising platform for in vitro and in vivo breast tumor photothermal therapy. The produced SP-MoS 2 nanosheets featured low cost, simple fabrication, and good in vivo hemo-/histocompatibility and hold promising potential for future clinical tumor therapy.

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“…Bi-containing composites have been widely researched in computed tomography (CT) imaging due to high X-ray attenuation. 18 CE technology has exhibited various advantages in the field of colloidal nanocrystals synthesis, such as tuning heterostructure type of CS structure QDs, tailoring the composition, and even regulating free carrier density by forming the interstitial or vacancy defects in QDs. [19][20][21][22][23][24] We have prepared the CS structure CdSe/Bi 2 Se 3 by CE technology recently, despite their apparent photothermal conversion advantages, the intrinsic toxicity of cadmium has cast a doubtful future for this promising field.…”

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confidence: 99%

Formation of ZnSe/Bi2Se3 QDs by surface cation exchange and high photothermal conversion

Jia

Wang

et al. 2015

AIP Advances

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Water-dispersed core/shell structure ZnSe/Bi2Se3 quantum dots were synthesized by ultrasonicwave-assisted cation exchange reaction. Only surface Zn ion can be replaced by Bi ion in ZnSe quantum dots, which lead to the ultrathin Bi2Se3 shell layer formed. It is significance to find to change the crystal of QDs due to the acting of ultrasonicwave. Cation exchange mechanism and excellent photothermal conversion properties are discussed in detail.

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A Facile One‐Pot Synthesis of a Two‐Dimensional MoS₂/Bi₂S₃ Composite Theranostic Nanosystem for Multi‐Modality Tumor Imaging and Therapy

Cited by 394 publications

References 47 publications

Layer-controlled growth of MoS2 on self-assembled flower-like Bi2S3 for enhanced photocatalysis under visible light irradiation

Layer-controlled growth of MoS2 on self-assembled flower-like Bi2S3 for enhanced photocatalysis under visible light irradiation

Facile synthesis of soybean phospholipid-encapsulated MoS2 nanosheets for efficient in vitro and in vivo photothermal regression of breast tumor

Formation of ZnSe/Bi2Se3 QDs by surface cation exchange and high photothermal conversion

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