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The Photoluminescence and Biocompatibility of CuInS2-Based Ternary Quantum Dots and Their Biological Applications

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Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa
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Centre for Nanomaterials Science Research, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa
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Author to whom correspondence should be addressed.
Chemosensors 2020, 8(4), 101; https://doi.org/10.3390/chemosensors8040101
Received: 2 September 2020 / Revised: 1 October 2020 / Accepted: 2 October 2020 / Published: 15 October 2020
Semiconductor quantum dots (QDs) have become a unique class of materials with great potential for applications in biomedical and optoelectronic devices. However, conventional QDs contains toxic heavy metals such as Pb, Cd and Hg. Hence, it is imperative to find an alternative material with similar optical properties and low cytotoxicity. Among these materials, CuInS2 (CIS) QDs have attracted a lot of interest due to their direct band gap in the infrared region, large optical absorption coefficient and low toxic composition. These factors make them a good material for biomedical application. This review starts with the origin and photophysical characteristics of CIS QDs. This is followed by various synthetic strategies, including synthesis in organic and aqueous solvents, and the tuning of their optical properties. Lastly, their significance in various biological applications is presented with their prospects in clinical applications. View Full-Text
Keywords: CuInS2 quantum dots; optical materials; cytotoxicity; bioimaging CuInS2 quantum dots; optical materials; cytotoxicity; bioimaging
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Jose Varghese, R.; Oluwafemi, O.S. The Photoluminescence and Biocompatibility of CuInS2-Based Ternary Quantum Dots and Their Biological Applications. Chemosensors 2020, 8, 101.

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