CdTe quantum dots prepared using herbal species and microorganisms and their anti-cancer, drug delivery and antibacterial applications; a review

Akbari, Maryam; Rahimi-Nasrabadi, Mahdi; Pourmasud, Saeid; Eghbali-Arani, Mohammad; Banafshe, Hamid Reza; Ahmadi, Farhad; Ganjali, Mohammad Reza; Sobhani‐Nasab, Ali

doi:10.1016/j.ceramint.2020.01.051

Cited by 38 publications

(17 citation statements)

References 197 publications

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“…Quantum dots (QDs) or semiconductor nanocrystals (SNCs) exhibited unique optical and electronic properties, making them distinct from other nanomaterials [54][55][56][57][58][59][60][61][62][63][64][65][66] . QDs show good luminescence properties compared to organic and inorganic nanoparticles 45,[67][68][69][70][71] .…”

Section: Introductionmentioning

confidence: 99%

Selective Naked-eyes Chemosensing of Cu2+ ions using Chitosan-CdS Quantum Dots Biohybrid

Abdelhamid

Algethami

Saidi

et al. 2022

Preprint

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Cadmium sulfide (CdS) quantum dots (QDs) were homogeneously embedded into chitosan (CTS), denoted as CdS/CTS, via an in-situ solvothermal method. The intact structure of the synthesized materials was preserved via separating the materials using freeze-drying. The materials were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscope (TEM), high-resolution TEM (HR-TEM), scanning TEM (STEM), dispersive energy X-ray (EDX) for elemental analysis and mapping, Fourier transform infrared (FT-IR), nitrogen adsorp-tion-desorption isotherms, thermogravimetric analysis, UV-Vis spectroscopy, and diffuse reflectance spectroscopy (DRS). The synthesis procedure offered CdS QDs with 1-7 nm (average particle size of 3.2 nm). The functional groups of CTS modulate the in-situ growth of CdS QDs and prevent the agglomeration of CdS QDs, offering homogenous distribution inside CTS. CdS/CTS QDs can also be used for naked-eye detection of heavy metals with high selectivity toward copper (Cu2+) ions. The mechanism of interactions between Cu2+ ions and CdS/CTS QDs was further studied

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Section: Introductionmentioning

confidence: 99%

Selective Naked-eyes Chemosensing of Cu2+ ions using Chitosan-CdS Quantum Dots Biohybrid

Abdelhamid

Algethami

Saidi

et al. 2022

Preprint

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“…Because of its optical and electrical properties, zinc sulfide (ZnS) is a broad bandgap semiconductor of excessive interest. It has numerous uses, extending from filter and lens materials to ultraviolet (UV) photodiodes and other compound semiconducting devices, thanks to its wide bandgap of 3.7 eV and low absorption at visible wavelengths 10‐13 . Photovoltaic, catalysis, thermoelectric, spintronics, supercapacitors, and serving as electrodes in batteries are all possible applications for these chalcogenide nanostructures.…”

Section: Introductionmentioning

confidence: 99%

Optical, anticancer, photoluminescent, and electrochemical properties of crystalline ZnS quantum dots

et al. 2022

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In this study, we report the fabrication of binary chalcogenide zinc sulfide (ZnS) quantum dots (QDs) paying a facial, economical, eco-friendly, and template-free chemical method. The as-synthesized nanomaterial has a single cubic phase; based on its structural features, it was confirmed that the nanoparticles are grown as QDs (2-10 nm). Morphological studies display the formation of agglomerated QDs (3 nm). The energy-dispersive spectroscopy shows that the essential elements are in the stoichiometric ratio as in the precursor solutions. Optical properties confirmed that the QDs are suitable for optoelectronic devices revealing room-temperature photoluminescence. The charge-storage electrochemical activity was explored via electrochemical characterization performances. Electrochemical studies show that the synthesized material has charge storage ability. And according to the International Commission on Illumination, the ZnS QDs show green emission, thus presenting that the material will be useful for biological applications. In addition, these nanoparticles exhibit incredible anticancer activities especially against breast cancer cells and may be used for biological or biomedical applications as well.

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“…Individual electronic and optical properties of QDs that arise from quantum con nement and high surface area to volume ratio (SA/V) have caused their new technological applications [4]. QDs have wide applications including sensors [5], light emitting diodes [6], solar cells [7], lasers [8], medicine [9], imaging [10], photocatalysts [11] and antibacterial [12,13].…”

Section: Introductionmentioning

confidence: 99%

CdSe/ZnS Quantum Dots As a Fluorescence Probes For Determination of Vitamin B1

Tirbandpaya

Samadi‐Maybodi

2021

Preprint

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This paper presents a new and fast method for determination of vitamin B1 (thiamine) using functionalized CdSe/ZnS quantum dots (QDs) as a sensor. In this study the core-shell CdSe/ZnS QDs with thioglycolic acid capping agents were synthesized by wet chemical method in aqueous solution. Electronic absorption was applied for size determination of the QDs, the average diameters of the synthesized quantum dots were calculated using wavelength of the first excitonic absorption peak. The methods of FESEM and FTIR were also used for characterization of the prepared samples. The results indicated that vitamin B1 could effectively quench the QDs emission and the fluorescence intensity decreased linearly with the concentration of vitamin B1 ranging from 10-7 to 10-4 molL−1 with limit of detection of 2×10-8 mol L−1. Determination of vitamin B1in pills from two pharmaceutical companies were used as real samples using this method .

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CdTe quantum dots prepared using herbal species and microorganisms and their anti-cancer, drug delivery and antibacterial applications; a review

Cited by 38 publications

References 197 publications

Selective Naked-eyes Chemosensing of Cu2+ ions using Chitosan-CdS Quantum Dots Biohybrid

Selective Naked-eyes Chemosensing of Cu2+ ions using Chitosan-CdS Quantum Dots Biohybrid

Optical, anticancer, photoluminescent, and electrochemical properties of crystalline ZnS quantum dots

CdSe/ZnS Quantum Dots As a Fluorescence Probes For Determination of Vitamin B1

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