Comparative toxicity of Cd, Mo, and W sulphide nanomaterials toward E. coli under UV irradiation

Shang, Enxiang; Niu, Junfeng; Li, Yang; Zhou, Yijing; Crittenden, John C.

doi:10.1016/j.envpol.2017.02.044

Cited by 54 publications

(40 citation statements)

References 55 publications

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“…In addition, the cell viability of the CS@MoS 2 ‐Tigroup still showed a high level. These results revealed that CS@MoS 2 had good biocompatibility compared to pure Ti at an earlier stage, which could be attributed to the abundant interspersion of biocompatible CS in conjunction with MoS 2 sheets …”

Section: Resultsmentioning

confidence: 87%

Electrophoretic Deposited Stable Chitosan@MoS₂ Coating with Rapid In Situ Bacteria‐Killing Ability under Dual‐Light Irradiation

Feng¹,

Liu²,

Cui

et al. 2018

Small

179

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Developing in situ disinfection methods in vivo to avoid drug-resistant bacteria and tissue toxicity is an urgent need. Here, the photodynamic and photothermal properties of the chitosan-assisted MoS (CS@MoS ) hybrid coating are simultaneously inspired to endow metallic Ti implants with excellent surface self-antibacterial capabilities. This coating, irradiated by only 660 nm visible light (VL) for 10 min, exhibits an antibacterial efficacy of 91.58% and 92.52% against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), respectively. The corresponding value is 64.67% and 57.44%, respectively, after irradiation by a single 808 nm near infrared light for the same amount of time. However, the combined irradiation using both lights can significantly enhance the efficiency up to 99.84% and 99.65% against E. coli and S. aureus, respectively, which can be ascribed to the synergistic effects of photodynamic and photothermal actions. The former produces single oxygen species under 660 nm VL while the latter induces a rise in temperature of implants, which can inhibit the growth of both E. coli and S. aureus. The introduction of CS can also promote the biocompatibility of implants, which provides a facile, rapid, and safe in situ bacteria-killing method in vivo without needing a second surgery.

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Section: Resultsmentioning

confidence: 87%

Electrophoretic Deposited Stable Chitosan@MoS₂ Coating with Rapid In Situ Bacteria‐Killing Ability under Dual‐Light Irradiation

Feng¹,

Liu²,

Cui

et al. 2018

Small

179

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“…It has been also reported that the release of metal ions from TMSs has been considered as one of the possible factors responsible for their bacteriostatic efficacy [120,123,124]. This postulation was evidenced in CdS, Ag2S, and CuS except for MoS2 [88,103,125,126]. Particularly, Cu 2+ could form chelates (such as copper-peptide complexes) with biomolecules or dislodge the metal ions in some metalloproteins, causing dysfunctional proteins and further cell inactivation [124,127].…”

Section: Other Antibacterial Mechanisms Of Tmssmentioning

confidence: 99%

“…However, O2 • -, 1 O2, and • OH were produced on MoS2 and WS2, which was inconsistent with their energy band potential. The authors attributed this phenomenon to the positive shift of the VB caused by quantum confinement effects of the ultra-small-sized nanoparticles [88]. In fact, the energy band structure can be tuned with many approaches including microstructure engineering and surface functionalization.…”

Section: Photocatalytic Antibacterial Mechanismmentioning

confidence: 99%

Shining light on transition metal sulfides: New choices as highly efficient antibacterial agents

Han

Yang

et al. 2021

Nano Res.

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Globally, millions of people die of microbial infection-related diseases every year. The more terrible situation is that due to the overuse of antibiotics, especially in developing countries, people are struggling to fight with the bacteria variation. The emergence of super-bacteria will be an intractable environmental and health hazard in the future unless novel bactericidal weapons are mounted. Consequently, it is critical to develop viable antibacterial approaches to sustain the prosperous development of human society. Recent researches indicate that transition metal sulfides (TMSs) represent prominent bactericidal application potential owing to the meritorious antibacterial performance, acceptable biocompatibility, high solar energy utilization efficiency, and excellent photo-to-thermal conversion characteristics, and thus, a comprehensive review on the recent advances in this area would be beneficial for the future development. In this review article, we start with the antibacterial mechanisms of TMSs to provide a preliminary understanding. Thereafter, the state-of-the-art research progresses on the strategies for TMSs materials engineering so as to promote their antibacterial properties are systematically surveyed and summarized, followed by a summary of the practical application scenarios of TMSs-based antibacterial platforms. Finally, based on the thorough survey and analysis, we emphasize the challenges and future development trends in this area.

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“…123,124 For 2D materials, several studies have assessed the cytotoxicity of TMDCs according to composition. 125–128 For example, Teo et al investigated the toxicity of chemically exfoliated MoS 2 , WS 2 , and WSe 2 in human lung carcinoma epithelial cells (A549). 125 While low toxicity of MoS 2 and WS 2 was observed, a dose-dependent toxicity of WSe 2 was detected, indicating that the presence of selenium plays an important role in the toxicity of TMDCs.…”

Section: D Materials Hazard Assessmentmentioning

confidence: 99%

Assessing and Mitigating the Hazard Potential of Two-Dimensional Materials

Guiney¹,

Wang

Xia

et al. 2018

ACS Nano

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The family of two-dimensional (2D) materials is comprised of a continually expanding palette of unique compositions and properties with potential applications in electronics, optoelectronics, energy capture and storage, catalysis, and nanomedicine. To accelerate the implementation of 2D materials in widely disseminated technologies, human health and environmental implications need to be addressed. While extensive research has focused on assessing the toxicity and environmental fate of graphene and related carbon nanomaterials, the potential hazards of other 2D materials have only recently begun to be explored. Herein, the toxicity and environmental fate of post-carbon 2D materials, such as transition metal dichalcogenides, hexagonal boron nitride, and black phosphorus, are reviewed as a function of their preparation methods and surface functionalization. Specifically, we delineate how the hazard potential of 2D materials is directly related to structural parameters and physicochemical properties, and how experimental design is critical to the accurate elucidation of the underlying toxicological mechanisms. Finally, a multidisciplinary approach for streamlining the hazard assessment of emerging 2D materials is outlined, thereby providing a pathway for accelerating their safe use in a range of technologically relevant contexts.

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Comparative toxicity of Cd, Mo, and W sulphide nanomaterials toward E. coli under UV irradiation

Cited by 54 publications

References 55 publications

Electrophoretic Deposited Stable Chitosan@MoS₂ Coating with Rapid In Situ Bacteria‐Killing Ability under Dual‐Light Irradiation

Electrophoretic Deposited Stable Chitosan@MoS₂ Coating with Rapid In Situ Bacteria‐Killing Ability under Dual‐Light Irradiation

Shining light on transition metal sulfides: New choices as highly efficient antibacterial agents

Assessing and Mitigating the Hazard Potential of Two-Dimensional Materials

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Comparative toxicity of Cd, Mo, and W sulphide nanomaterials toward E. coli under UV irradiation

Cited by 54 publications

References 55 publications

Electrophoretic Deposited Stable Chitosan@MoS2 Coating with Rapid In Situ Bacteria‐Killing Ability under Dual‐Light Irradiation

Electrophoretic Deposited Stable Chitosan@MoS2 Coating with Rapid In Situ Bacteria‐Killing Ability under Dual‐Light Irradiation

Shining light on transition metal sulfides: New choices as highly efficient antibacterial agents

Assessing and Mitigating the Hazard Potential of Two-Dimensional Materials

Contact Info

Product

Resources

About

Electrophoretic Deposited Stable Chitosan@MoS₂ Coating with Rapid In Situ Bacteria‐Killing Ability under Dual‐Light Irradiation

Electrophoretic Deposited Stable Chitosan@MoS₂ Coating with Rapid In Situ Bacteria‐Killing Ability under Dual‐Light Irradiation