Functionalized quantum dots to quantify NADPH and their use for NADP+-dependent biocatalyzed transformations |
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Authors: | Kim Min Young Kim Yea Seul Kim Jisu Hah Sang Soo Kim Tae Jung Kim Young Dong |
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Institution: | Department of Chemistry and Research Institute for Basic Sciences, Kyung Hee University, Seoul, 130-701, Korea. |
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Abstract: | Quantum dots are semiconducting nanoparticles that can be prepared with interesting optical properties. The fluorescent properties of quantum dots are one of the key advantages for their use as optical labels for biorecognition events and biocatalytic processes. We have prepared semiconductor quantum dots conjugated with Nile Blue (NB), and demonstrate that NB-functionalized quantum dots can act as versatile probes to analyze different biocatalyzed transformations, and can be used for the quantitative detection of NADPH as well as NADH. This approach provides a new path for the optical detection of NAD(P)H and for the quantitative analysis of NAD(P)(+)-dependent biotransformations. |
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