Events

Single receptor labelling using fluorescent ruby nanoparticles

Event date: 
27 October 2017 - 3:30pm
Location: 
Wallace Wurth C27, LG02
Event Type: 
Seminar
Booking deadline: 

Neuroscience & Non-communicable Diseases Seminar
 

Dr Varun Sreenivasan, Single Molecule Science, School of Medical Sciences UNSW

Fluorescence-based assays and microscopy to measure and visualize biomolecules continue to impose ever-increasing demands on probe-characteristics such as brightness, photostability, detection-sensitivity, biocompatibility and cost. Our efforts have been focused on fluorescent probes that can enable long-term single molecule imaging in optically crowded samples, where contrast of probes are otherwise significantly challenged. With a backdrop of our earlier work on fluorescent nanoparticles such as quantum dots, nanodiamonds and upconversion nanoparticles, I will discuss the development of a novel photoluminescent nanoparticle probe called Nanoruby. The unique photophysical characteristics of nanoruby, derived from the gemstone Ruby, enables continued imaging for extended time periods with single-particle sensitivity even in a highly fluorescent optical background. We demonstrate the uses and advantages of the developed nanoruby probe in two separate applications: (1) for visualizing mu-opioid receptors on cell membrane and (2) an exemplary kinetic binding assay, where binding events can be tracked molecule-by-molecule in autofluorescent biological fluids. 

All welcome. Drinks and nibbles from 3:30pm, seminar starts, 4pm.

Contact for inquiries: 
Natasha Kumar Natasha.kumar@unsw.edu.au | Greg Smith g.smith@unsw.edu.au | Ingvars Birznie; i.birznieks@unsw.edu.au
Image - Single receptor labelling using fluorescent ruby nanoparticles

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18 July 2019

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