Controllable preparation of Ag2S quantum dots with size-dependent fluorescence and cancer photothermal therapy

Gao, Minjie; Zhao, Haodong; Wang, Zhihua; Zhao, Yanbao; Zou, Xueyan; Sun, Lei

doi:10.1016/j.apt.2021.04.011

Cited by 41 publications

(10 citation statements)

References 30 publications

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“…Ag 2 S has three polymorphic modifications, monoclinic phase of α-Ag 2 S acanthite, body-centered cubic (bcc) superionic β-Ag 2 S argentite, and face-centered cubic (fcc) γ-Ag 2 S sulfide at temperatures < 450 K, 452–859 K, and ∼860 K, respectively. Ag 2 S with particle size of <60 nm is monoclinic . It has wide applications in several areas like bioimaging, cancer photothermal therapy, food packing, solar cells, and photocatalysis because of its unique NIR emission, antimicrobial activity, high quantum yield, photothermal conversion efficiency and chemical stability, excellent photostability, narrow bandgap energy (0.9–1.1 eV), large optical absorption coefficient, nontoxicity, and environmentally friendly nature. , …”

Section: Synthesis Biomedical Environmental and Energy Applicationsmentioning

confidence: 99%

Review of Metal Sulfide Nanostructures and their Applications

Jamal

Rafique

Moeen

et al. 2023

ACS Appl. Nano Mater.

107

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The rapid development of population, industry, and urbanization have generated significant issues including energy consumption and water contamination. Advanced materials are needed to clean up the surroundings and develop potential energy storage devices. Metal sulfides (MSs) nanomaterials are prospective candidates for multidimensional applications in medicine, biology, environmental sciences, and energy production/utilization due to their light absorption, optical characteristics, high specific capacitance, and catalytic/photocatalytic capability. Recent developments showed its use as electrode material for Li, Na, K, and Mg ion batteries, solar cells, and supercapacitors, electrocatalysts for the oxygen/hydrogen evolution reaction, sensors for gases/chemicals, and catalysts/photocatalysts for environmental remediation. Scalable techniques for producing high-quality, low-cost metal sulfides, heterostructures, and hybrids are needed to realize the potential of these interesting materials fully. This review summarizes current achievements in MSs notably, manganese sulfide (MnS), iron sulfide (FeS), cobalt sulfide (CoS), nickel sulfide (NiS), copper sulfide (CuS), zinc sulfide (ZnS), silver sulfide (AgS), cadmium sulfide (CdS), tungsten sufide (WS), tin sulfide (SnS), lead sulfide (PbS), and molybdenum disufide (MOS2) and their efficient physiochemical and biological production to get controlled morphologies, sizes, and compositions.

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Section: Synthesis Biomedical Environmental and Energy Applicationsmentioning

confidence: 99%

Review of Metal Sulfide Nanostructures and their Applications

Jamal

Rafique

Moeen

et al. 2023

ACS Appl. Nano Mater.

107

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“…Because gold nanocomposites are positively charged, they can be created chemically with a wide range of organic molecules, including medications and genomes, and they can even be synthesized at room temperature [ 30 ]. Furthermore, Au NPs are nontoxic and biodegradable, have a distinct surface influence, are ultrathin, include surface plasmon enhancement (SPR) property, and exhibit mesoscopic quantum characteristics [ 31 , 32 ]. Due to these characteristics, Au NPs are the best choice for several biological applications, including biosensing, clinical diagnostics, and drug development.…”

Section: Introductionmentioning

confidence: 99%

Inhibition of Staphylococcus aureus α‐Hemolysin Production Using Nanocurcumin Capped Au@ZnO Nanocomposite

Jabir

Rashid

Nayef

et al. 2022

Bioinorganic Chemistry and Applications

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Nanoparticles of gold with zinc oxide (Au@ZnO NPs) were prepared by laser ablation and then capped with curcumin nanoparticles (Cur-Au@ZnO NPs). The synthesized NPs were characterized using different techniques, including transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), UV-visible spectroscopy, and X-ray diffraction. In addition, the ability of NPs as a promising antibacterial agent was tested against Staphylococcus aureus through the agar well diffusion method and AO/EtBr staining assay. The results showed that the prepared nanoparticles (Cur-Au@ZnO) served as an antibacterial agent and can destroy the bacterial cells by losing the cell wall integrity and penetrating the cytoplasmic membrane. Moreover, the findings confirmed the role of the formed NPs in attenuation of the adherence and invasion of S. aureus to rat embryonic fibroblast (REF) cells. Furthermore, the activity of Cur-Au@ZnO NPs against the S. aureus α-hemolysin toxin was evaluated using the western blot technique, using human alveolar epithelial cells (A549), and through histopathology examination in a mouse model. In conclusion, the built Cur-Au@ZnO NPs can be used as a potential antibacterial agent and an inhibitor of α-hemolysin toxin secreted by S. aureus. These NPs may offer a new strategy in combating pathogen infections and in the future for biomedical and pharmaceutical applications.

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“…Additionally, AgNPs have been used as a basis for creating nanocomposites that build upon the antimicrobial properties of these nanoparticles, further enhancing the effectiveness and durability of their bactericidal effects [ 6 ]. Their small size, combined with their ability to absorb non-ionizing and ionizing radiation, has proven a great asset in increasing the effectiveness of oncology treatments, such as radiotherapy, photodynamic therapy [ 7 ], and photothermal therapy, as well as providing new options for monitoring of treatment efficiency [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Neurobehavioral and Ultrastructural Changes Induced by Phytosynthesized Silver-Nanoparticle Toxicity in an In Vivo Rat Model

et al. 2021

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(1) Background: The study aimed to assess neurobehavioral, ultrastructural, and biochemical changes induced by silver nanoparticles synthesized with Cornus mas L. extract (AgNPs-CM) in rat brains. (2) Methods: The study included 36 male adult rats divided into three groups. Over a period of 45 days, AgNPs-CM (0.8 and 1.5 mg/kg b.w.) were administered daily by gavage to two of the groups, while the control group received the vehicle used for AgNP. After treatment, OFT and EPM tests were conducted in order to assess neurobehavioral changes. Six of the animals from each group were sacrificed immediately after completion of treatment, while the remaining six were allowed to recuperate for an additional 15 days. Transmission electron microscopy (TEM), GFAP immunohistochemistry, and evaluation of TNFα, IL-6, MDA, and CAT activity were performed on the frontal cortex and hippocampus. (3) Results: Treated animals displayed a dose- and time-dependent increase in anxiety-like behavior and severe ultrastructural changes in neurons, astrocytes, and capillaries in both brain regions. Immunohistochemistry displayed astrogliosis with altered cell morphology. TNFα, IL-6, MDA, and CAT activity were significantly altered, depending on brain region and time post exposure. (4) Conclusions: AgNPs-CM induced neurobehavioral changes and severe cell lesions that continued to escalate after cessation of exposure.

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Controllable preparation of Ag2S quantum dots with size-dependent fluorescence and cancer photothermal therapy

Cited by 41 publications

References 30 publications

Review of Metal Sulfide Nanostructures and their Applications

Review of Metal Sulfide Nanostructures and their Applications

Inhibition of Staphylococcus aureus α‐Hemolysin Production Using Nanocurcumin Capped Au@ZnO Nanocomposite

Neurobehavioral and Ultrastructural Changes Induced by Phytosynthesized Silver-Nanoparticle Toxicity in an In Vivo Rat Model

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