Nano-Sized Iron Sulfide: Structure, Synthesis, Properties, and Biomedical Applications

Yuan, Ye; Wang, Liping; Gao, Lizeng

doi:10.3389/fchem.2020.00818

Cited by 30 publications

(18 citation statements)

References 92 publications

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“…[3,15b,28] The strong peaks at 2θ = 30.06°, 34.03°, 44.08°, 53.38°and 73.92°correspond to the (100), (101), (102), (110) and (104) planes are all indexed to Fe 0.95 S 1.05 (JCPDS card No.75-0600). [29] The characteristic peaks of WS 2 and Fe 0.95 S 1.05 can be observed in Figure 1a, confirming that the product is a phase mixture. The Raman spectra of WS 2 / Fe 0.95 S 1.05 -2 and WS 2 were compared and shown in Figure 1b.…”

Section: Introductionsupporting

confidence: 55%

Novel WS₂/Fe_0.95S_1.05 Hierarchical Nanosphere as a Highly Efficient Electrocatalyst for Hydrogen Evolution Reaction

Sun

Geng

Gao

et al. 2021

Chemistry A European J

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Fe 0.95 S 1.05 with high reactivity and stability was incorporated into WS 2 nanosheets via a one-step solvothermal method for the first time. The resulted hybrid catalyst has much higher catalytic activity than WS 2 and Fe 0.95 S 1.05 alone, and the optimal WS 2 /Fe 0.95 S 1.05 hybrid catalyst was found by adjusting the feed ratio. The addition of Fe 0.95 S 1.05 was proven to be able to enhance the hydrogen evolution reaction (HER) activity of WS 2 , and vice versa. At the same time, it was found that the catalytic effect of the hybrid catalyst was the best when the feed ratio was W : Fe = 2 : 1. In other words, we confirmed that there is a synergistic effect between W-and Fe-based sulfide hybrid catalysts, and validated that the reason for the improved HER performance is the strong interaction between the two in the middle sulfur. WS 2 / Fe 0.95 S 1.05 -2 hybrid catalyst leads to enhanced HER activity, which shows a low overpotential of~0.172 V at 10 mA cm À 2 , low Tafel slope of~53.47 mV/decade. This study supplies innovative synthesis of a highly active WS 2 /Fe 0.95 S 1.05 hybrid catalyst for HER.

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Section: Introductionsupporting

confidence: 55%

Novel WS₂/Fe_0.95S_1.05 Hierarchical Nanosphere as a Highly Efficient Electrocatalyst for Hydrogen Evolution Reaction

Sun

Geng

Gao

et al. 2021

Chemistry A European J

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“…More recently, other nanostructured metal sulfides with unique physical and chemical properties and promising photodynamic response for cancer treatment have been reported. Among them, iron sulfide [ 78 ], silver sulfide [ 79 , 80 ], bismuth sulfide [ 81 , 82 ], and cobalt sulfide [ 83 ] stand out. Iron sulfide comprises iron and sulfur at different proportions and exists in different phases, such as Fe 1− x S (pyrrhotite), FeS (mackinawite), FeS 2p (pyrite), Fe 3 S 4 (greigite), Fe 9 S 11 (smythite), and FeS 2m (marcasite) [ 78 ].…”

Section: Metal Sulfides As Photosensitizers In Pdtmentioning

confidence: 99%

“…Among them, iron sulfide [ 78 ], silver sulfide [ 79 , 80 ], bismuth sulfide [ 81 , 82 ], and cobalt sulfide [ 83 ] stand out. Iron sulfide comprises iron and sulfur at different proportions and exists in different phases, such as Fe 1− x S (pyrrhotite), FeS (mackinawite), FeS 2p (pyrite), Fe 3 S 4 (greigite), Fe 9 S 11 (smythite), and FeS 2m (marcasite) [ 78 ]. The phase, shape, and physicochemical properties of iron sulfide nanoparticles depend primarily on the iron content [ 78 ].…”

Section: Metal Sulfides As Photosensitizers In Pdtmentioning

confidence: 99%

Photodynamic Therapeutic Effect of Nanostructured Metal Sulfide Photosensitizers on Cancer Treatment

et al. 2022

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Photodynamic therapy (PDT) utilizes photosensitizers (PSs) to produce reactive oxygen species (ROSs) upon irradiation, which causes the shutdown of vessels and deprives the tumor of nutrients and oxygen, and in turn induces adverse effects on the immune system. However, significant efforts are needed to increase the efficiency in PDT in terms of light delivery to specific PSs for the clinical treatment of tumors located deep under the skin. Even though PDT offers a disease site-specific treatment modality, current efforts are directed to improve the solubility (in body fluids and injectable solvents), photostability, amphiphilicity (for tissue penetration), elimination, and systemic toxicity of traditional PSs based on porphyrin derivatives. Nanostructured materials show promising features to achieve most of such combined efforts. They can be artificially engineered to carry multiple theranostic agents onto targeted tumor sites. However, recent studies on photosensitive Cd-based nanostructures, mostly used in PDT, indicate that leeching of Cd2+ ions is stimulated when they are exposed to harsh biological conditions for continuous periods of time, thus making them acutely toxic and hindering their applications in in vivo settings. Since nanostructured materials are not completely immune to degradation, great strides have been made to seek new alternatives. In this review, we focus on the latest advances of Cd-free nanostructured metal transition sulfides (MTSs) as alternative PSs and study their high-energy transfer efficiency, rational designs, and potential applications in cancer-targeted PDT. Nanostructured MTSs are discussed in the context of their versatility to serve as phototherapy agents and superior properties, including their strong absorption in the NIR region, excellent photothermal conversion efficiency, controlled reactive oxygen species (ROS) production, versatile surface chemistry, high fluorescence, and structural and thermal stability. We discuss the latest advancements in correlating the self-aggregation of MTSs with their passive tumor cell targeting, highlighting their ability to efficiently produce ROSs, and mitigating their dark toxicity through polymeric functionalization. Treatment of deep-seated tumors by using these PSs upon preferential uptake by tumor tissues (due to the enhanced permeability and retention effect) is also reviewed. We finally summarize the main future perspectives of MTSs as next-generation PSs within the context of cancer theranostics. Graphical Abstract

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“…They are typically found in anoxic sediments [62–64] . Iron sulfide minerals can be produced by pure chemical reactions and include greigite (Fe 3 S 4 ), pyrrhotite (Fe 7 S 8 ), mackinawite (tetragonal FeS), pyrite (cubic FeS 2 ), marcasite (orthorhombic FeS 2 ), and amorphous FeS [55,65] . Compared to these abiotic iron sulfides, those formed by SRB and anaerobic archaea are limited to amorphous FeS, mackinawite, greigite and rarely pyrite [37,66,67] …”

Section: Features Of Metal Sulfide Biomineralization Casesmentioning

confidence: 99%

Diversity of Microbial Metal Sulfide Biomineralization

Park

Faivre

2021

ChemPlusChem

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Since the emergence of life on Earth, microorganisms have contributed to biogeochemical cycles. Sulfate‐reducing bacteria are an example of widespread microorganisms that participate in the metal and sulfur cycles by biomineralization of biogenic metal sulfides. In this work, we review the microbial biomineralization of metal sulfide particles and summarize distinctive features from exemplary cases. We highlight that metal sulfide biomineralization is highly metal‐ and organism‐specific. The properties of metal sulfide biominerals depend on the degree of cellular control and on environmental factors, such as pH, temperature, and concentration of metals. Moreover, biogenic macromolecules, including peptides and proteins, help cells control their extracellular and intracellular environments that regulate biomineralization. Accordingly, metal sulfide biominerals exhibit unique features when compared to abiotic minerals or biominerals produced by dead cell debris.

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Nano-Sized Iron Sulfide: Structure, Synthesis, Properties, and Biomedical Applications

Cited by 30 publications

References 92 publications

Novel WS₂/Fe_0.95S_1.05 Hierarchical Nanosphere as a Highly Efficient Electrocatalyst for Hydrogen Evolution Reaction

Novel WS₂/Fe_0.95S_1.05 Hierarchical Nanosphere as a Highly Efficient Electrocatalyst for Hydrogen Evolution Reaction

Photodynamic Therapeutic Effect of Nanostructured Metal Sulfide Photosensitizers on Cancer Treatment

Diversity of Microbial Metal Sulfide Biomineralization

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Nano-Sized Iron Sulfide: Structure, Synthesis, Properties, and Biomedical Applications

Cited by 30 publications

References 92 publications

Novel WS2/Fe0.95S1.05 Hierarchical Nanosphere as a Highly Efficient Electrocatalyst for Hydrogen Evolution Reaction

Novel WS2/Fe0.95S1.05 Hierarchical Nanosphere as a Highly Efficient Electrocatalyst for Hydrogen Evolution Reaction

Photodynamic Therapeutic Effect of Nanostructured Metal Sulfide Photosensitizers on Cancer Treatment

Diversity of Microbial Metal Sulfide Biomineralization

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Product

Resources

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Novel WS₂/Fe_0.95S_1.05 Hierarchical Nanosphere as a Highly Efficient Electrocatalyst for Hydrogen Evolution Reaction

Novel WS₂/Fe_0.95S_1.05 Hierarchical Nanosphere as a Highly Efficient Electrocatalyst for Hydrogen Evolution Reaction