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- W2022130063 abstract "The development and characterisation of a fluorescent optical PEBBLE (Probe Encapsulated By Biologically Localised Embedding) nanosensor for the detection of zinc is detailed. A ratiometric sensor has been fabricated that incorporates two fluorescent dyes; one is sensitive to zinc and the other acts as a reference. The sensing components are entrapped within a polymer matrix by a microemulsion polymerisation process that produces spherical sensors that are in the size region of 20 to 200 nm. Cellular measurements are made possible by the small sensor size and the biocompatibility of the matrix. The effects of reversibility, photobleaching and leaching have been examined, as well as the selectivity towards zinc over other cellular ions such as Na+, Ca2+, K+, and Mg2+. The dynamic range of these sensors was found to be 4 to 50 μM Zn2+ with a linear range from 15 to 40 μM. The response time for the PEBBLE is less than 4 s and the sensor is reversible. In addition, the nanosensors are photostable and leaching from the matrix, determined using a novel method, is minimal. These sensors are capable of real-time inter- and intra-cellular imaging and are insensitive to interference from proteins." @default.
- W2022130063 created "2016-06-24" @default.
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- W2022130063 date "2001-12-04" @default.
- W2022130063 modified "2023-10-15" @default.
- W2022130063 title "A fluorescent PEBBLE nanosensor for intracellular free zinc" @default.
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- W2022130063 doi "https://doi.org/10.1039/b108568a" @default.
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