Quantum dots: Prospectives, toxicity, advances and applications

Gidwani, Bina; Sahu, Varsha; Shukla, Shiv Shankar; Pandey, Ravindra Kumar; Joshi, Veenu; Jain, Vikas; Vyas, Amber

doi:10.1016/j.jddst.2020.102308

Cited by 144 publications

(80 citation statements)

References 82 publications

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“…QDs have good photochemical and optoelectronic properties [ 103 , 104 ], especially due to their high electron transfer efficiency and good surface reactivity [ 59 ], and they have been widely used as ideal markers in electrochemical biosensors. QDs can generally be divided into two categories, namely, sulfur-compound QDs and carbon-based QDs [ 105 ]. Sulfur-compound QDs, such as cadmium sulfide QDs (CdS), cadmium telluride QDs (CdTe), and lead sulfide QDs (PbS), are the most typical semiconductor QDs that are often used to build electrochemiluminescent sensors (ECLs).…”

Section: Commonly Used Signal Amplification Strategies For Electroche...mentioning

confidence: 99%

Electrochemical Signal Amplification Strategies and Their Use in Olfactory and Taste Evaluation

Wang

Liu

et al. 2022

Biosensors

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Biosensors are powerful analytical tools used to identify and detect target molecules. Electrochemical biosensors, which combine biosensing with electrochemical analysis techniques, are efficient analytical instruments that translate concentration signals into electrical signals, enabling the quantitative and qualitative analysis of target molecules. Electrochemical biosensors have been widely used in various fields of detection and analysis due to their high sensitivity, superior selectivity, quick reaction time, and inexpensive cost. However, the signal changes caused by interactions between a biological probe and a target molecule are very weak and difficult to capture directly by using detection instruments. Therefore, various signal amplification strategies have been proposed and developed to increase the accuracy and sensitivity of detection systems. This review serves as a reference for biosensor and detector research, as it introduces the research progress of electrochemical signal amplification strategies in olfactory and taste evaluation. It also discusses the latest signal amplification strategies currently being employed in electrochemical biosensors for nanomaterial development, enzyme labeling, and nucleic acid amplification techniques, and highlights the most recent work in using cell tissues as biosensitive elements.

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Section: Commonly Used Signal Amplification Strategies For Electroche...mentioning

confidence: 99%

Electrochemical Signal Amplification Strategies and Their Use in Olfactory and Taste Evaluation

Wang

Liu

et al. 2022

Biosensors

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“…QDs can be categorized into three types: core-type, core-shell, and alloyed [70]. Coretype QDs can be distinguished by the fact that they are composed of a single material, such as CdTe [71].…”

Section: Molecular Probes/tagsmentioning

confidence: 99%

Current State of Laser-Induced Fluorescence Spectroscopy for Designing Biochemical Sensors

Taylor

Lai

2021

Chemosensors

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Laser-induced fluorescence (LIF) has been a valuable analytical technique since the 1970s that has only been made more useful through advances in other scientific fields such as biochemistry. Moreover, advances in laser and detector technology have seen a decrease in LIF detector costs and an increase in their ease of use. These changes have allowed for LIF technology to be widely adopted for various sensor designs in combination with advanced instruments. With advances in biochemistry necessitating the detection of complex metabolites, labelling with fluorescent chemical reagents may be necessary to improve detection sensitivity. Furthermore, advances made in fluorescent labeling technologies have allowed for the use of LIF in the detection of nanoparticles as well as for imaging techniques using nanoparticles as signal amplifiers. This technology has become invaluable in the detection of environmental pollutants, monitoring of biological metabolites, biological imaging, and cancer diagnosis, making it one of the most valuable analytical science techniques currently available.

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“…Figure 1 shows the ideal structure of a semiconductor quantum dot. Semiconductor QDs are synthesized through high temperature, gamma irradiation, and microwave and sol-gel techniques [19]. In the synthesis via gamma irradiation, the precursor is irradiated with γ-rays to different doses to form a colloidal product.…”

Section: Quantum Dotsmentioning

confidence: 99%

Radiation-Assisted Synthesis of Polymer-Based Nanomaterials

Güven

2021

Applied Sciences

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Radiation technology has long been proven as a simple, rapid, green and sustainable technology with macroscale applications in healthcare, industry and environment. Its merits, however, have not been fully utilized in today’s ever growing nanotechnology. Ionizing radiation has beneficial effects for the synthesis and modification of structure and properties of nanomaterials. This paper intends to update the application of ionizing radiation in the development of various nanomaterials under the categories: (i) carbon-based nanomaterials, (ii) metal-based nanomaterials, (iii) polymer-based nanomaterials, (iv) polymer nanocomposites and (v) nano-scale grafting for advanced membrane applications.

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Quantum dots: Prospectives, toxicity, advances and applications

Cited by 144 publications

References 82 publications

Electrochemical Signal Amplification Strategies and Their Use in Olfactory and Taste Evaluation

Electrochemical Signal Amplification Strategies and Their Use in Olfactory and Taste Evaluation

Current State of Laser-Induced Fluorescence Spectroscopy for Designing Biochemical Sensors

Radiation-Assisted Synthesis of Polymer-Based Nanomaterials

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