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Optogenetics is an emerging powerful tool to investigate workings of the nervous system. However, the use of low tissue penetrating visible light limits its therapeutic potential. Employing deep penetrating near‐infrared (NIR) light for optogenetics would be beneficial but it cannot be used directly. This issue can be tackled with upconversion nanoparticles (UCNs) acting as nanotransducers emitting...
Upconversion nanoparticles (UCNs) have been of interest in applications such as biological imaging and sensing because of properties like low autofluorescence and negligible photobleaching. In this paper, a micellar encapsulation route was worked upon to make hydrophilic UCNs that are compatible with biological systems and enable conjugation of biomolecules. Phospholipid micelles cannot be easily...
Upconversion nanoparticles (UCNs), in the recent times have attracted attention due to their unique properties, which makes them ideal fluorophores for use in biological applications. There have been various reports on their use for targeted cell imaging, drug and gene delivery and also for diffuse optical tomography. Here we give a brief introduction on what are UCNs and the mechanism of upconversion,...
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