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Pavlicek A, Neubauer S, Zafiu C, Huber-Humer M, Ehmoser EK, Part F. The use and detection of quantum dots as nanotracers in environmental fate studies of engineered nanoparticles. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120461. [PMID: 36272608 DOI: 10.1016/j.envpol.2022.120461] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/07/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Investigations of the behavior and effects of engineered nanoparticles (ENPs) on human health and the environment need detailed knowledge of their fate and transport in environmental compartments. Such studies are highly challenging due to low environmental concentrations, varying size distribution of the particles and the interference with the natural background. A strategy to overcome these limits is to use mimics of ENPs with unique detectable properties that match the properties of the ENPs as nanotracers. A special class of ENPs that can be tracked are quantum dots (QDs). QDs are composed of different metals, metalloids, or more recently also carbon (e.g., graphene), that result in unique optical properties. This allows the tracking of such particles by fluorescence microscopic and photometric techniques. Many types of QDs consist of heavy elements, allowing to track and visualize these particles also by electron microscopy and to quantitate the particles indirectly based on these elements. QDs can also be surface modified in various ways which enable them to be used as a label or as traceable mimics for ENPs. This review reflects a broad range of methods to synthesize and modify QDs based on metals, metalloids, and graphene for studying the environmental fate of nanoparticles and discusses and compares analytical methods that can be used for tracking and quantifying QDs. In addition, we review applications of QDs as ENP mimics in environmental studies of surface waters, soils, microorganisms, and plants with respect to the applied analytical techniques.
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Affiliation(s)
- Anna Pavlicek
- University of Natural Resources and Life Sciences, Department of Nanobiotechnology, Institute for Synthetic Bioarchitectures, Muthgasse 11/II, 1190, Vienna, Austria
| | - Simon Neubauer
- University of Natural Resources and Life Sciences, Department of Water-Atmosphere-Environment, Institute of Waste Management and Circularity, Muthgasse 107, 1190, Vienna, Austria
| | - Christian Zafiu
- University of Natural Resources and Life Sciences, Department of Water-Atmosphere-Environment, Institute of Waste Management and Circularity, Muthgasse 107, 1190, Vienna, Austria.
| | - Marion Huber-Humer
- University of Natural Resources and Life Sciences, Department of Water-Atmosphere-Environment, Institute of Waste Management and Circularity, Muthgasse 107, 1190, Vienna, Austria
| | - Eva-Kathrin Ehmoser
- University of Natural Resources and Life Sciences, Department of Nanobiotechnology, Institute for Synthetic Bioarchitectures, Muthgasse 11/II, 1190, Vienna, Austria
| | - Florian Part
- University of Natural Resources and Life Sciences, Department of Water-Atmosphere-Environment, Institute of Waste Management and Circularity, Muthgasse 107, 1190, Vienna, Austria
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Pham XH, Park SM, Ham KM, Kyeong S, Son BS, Kim J, Hahm E, Kim YH, Bock S, Kim W, Jung S, Oh S, Lee SH, Hwang DW, Jun BH. Synthesis and Application of Silica-Coated Quantum Dots in Biomedicine. Int J Mol Sci 2021; 22:10116. [PMID: 34576279 PMCID: PMC8468474 DOI: 10.3390/ijms221810116] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/12/2021] [Accepted: 09/13/2021] [Indexed: 11/17/2022] Open
Abstract
Quantum dots (QDs) are semiconductor nanoparticles with outstanding optoelectronic properties. More specifically, QDs are highly bright and exhibit wide absorption spectra, narrow light bands, and excellent photovoltaic stability, which make them useful in bioscience and medicine, particularly for sensing, optical imaging, cell separation, and diagnosis. In general, QDs are stabilized using a hydrophobic ligand during synthesis, and thus their hydrophobic surfaces must undergo hydrophilic modification if the QDs are to be used in bioapplications. Silica-coating is one of the most effective methods for overcoming the disadvantages of QDs, owing to silica's physicochemical stability, nontoxicity, and excellent bioavailability. This review highlights recent progress in the design, preparation, and application of silica-coated QDs and presents an overview of the major challenges and prospects of their application.
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Affiliation(s)
- Xuan-Hung Pham
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Seung-Min Park
- Department of Urology, School of Medicine, Stanford University, Stanford, CA 94305, USA;
| | - Kyeong-Min Ham
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - San Kyeong
- School of Chemical and Biological Engineering, Seoul National University, Seoul 03080, Korea;
| | - Byung Sung Son
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Jaehi Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Eunil Hahm
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Yoon-Hee Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Sungje Bock
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Wooyeon Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Seunho Jung
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Sangtaek Oh
- Department of Bio and Fermentation Convergence Technology, Kookmin University, Seoul 02707, Korea;
| | - Sang Hun Lee
- Department of Chemical and Biological Engineering, Hanbat National University, Daejeon 34158, Korea
| | - Do Won Hwang
- Department of Nuclear Medicine, College of Medicine, Seoul National University, Seoul 03080, Korea
- THERABEST, Co., Ltd., Seocho-daero 40-gil, Seoul 06657, Korea
| | - Bong-Hyun Jun
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
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Goryacheva IY, Speranskaya ES, Goftman VV, Tang D, De Saeger S. Synthesis and bioanalytical applications of nanostructures multiloaded with quantum dots. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2014.11.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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