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Semiconductor Quantum Dots and Core Shell Systems for High Contrast Cellular/Bio Imaging

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Nanomaterials for Luminescent Devices, Sensors, and Bio-imaging Applications

Part of the book series: Progress in Optical Science and Photonics ((POSP,volume 16))

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Abstract

QDs are excellent materials for bioimaging because of its unique properties like high level of biocompatibility and its absorption and emission can be tuned with particle size. QDs are an extremely photostable and are considered to be brighter probes as compared to the traditional organic based dye. If the QDs are toxic in nature, it is necessary to surface modify ie, to add or cover some material like a shell over such types of QDs to reduce the toxicity. The non/least-toxic organic based dyes also can be used for cellular imaging application, so that it will cover the toxic QDs to protect the cellular surface and provide good images. Their attractive optical properties promise sensitive cancer imaging properties. In inorganic nanostructures, the ZnS QD is one of the less toxic material and several works are carried using ZnS capped with CdSe QDs for reducing the toxicity. This chapter deals with the cellular/bioimaging applications of the semiconductor QDs.

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Authors and Affiliations

  1. Department of Physics, Central University of Kerala, Kasaragod, 671320, India

    Manikanta Bayal, Neeli Chandran & Swapna S. Nair

  2. Department of Biochemistry and Molecular Biology, Central University of Kerala, Kasaragod, 671320, India

    Rajendra Pilankatta

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  1. Manikanta Bayal
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Bayal, M., Chandran, N., Pilankatta, R., Nair, S.S. (2021). Semiconductor Quantum Dots and Core Shell Systems for High Contrast Cellular/Bio Imaging. In: Nanomaterials for Luminescent Devices, Sensors, and Bio-imaging Applications. Progress in Optical Science and Photonics, vol 16. Springer, Singapore. https://doi.org/10.1007/978-981-16-5367-4_3

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