Nano Archive

Microfluidic perifusion and imaging device for multi-parametric islet function assessment

Adewola, Adeola F. and Lee, Dongyoung and Harvat, Tricia and Mohammed, Javeed and Eddington, David T. and Oberholzer, Jose and Wang, Yong (2010) Microfluidic perifusion and imaging device for multi-parametric islet function assessment. Biomedical Microdevices, 12 (3). pp. 409-417.

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Abstract

A microfluidic islet perifusion device was developed for the assessment of dynamic insulin secretion of multiple pancreatic islets and simultaneous fluorescence imaging of calcium influx and mitochondrial potential changes. The fanned out design of the second generation device optimized the efficient mixing and uniform distribution of rapid alternating solutions in the perifusion chamber and allowed for the generation of reproducible glucose gradients. Simultaneous imaging of calcium influx and mitochondrial potential changes in response to glucose stimulation showed high signal-noise ratio and spatial-temporal resolution. These results suggest that this system can be used for detailed study of the endocrine function of pancreatic islets with simultaneous imaging of intracellular ion fluxes and mitochondrial membrane potential changes. This tool can be used for quality assessment of islets preparation before transplantation and for in vitro studies of islet function.

Item Type:Article
Uncontrolled Keywords:Islets physiology . Imaging . Glucose gradient . Microfluidics
Subjects:Biomedical Science > Nanotechnology for human health
Material Science > Nanostructured materials
Biomedical Science > Nanomedicine
ID Code:8952
Deposited By:IoN
Deposited On:30 Apr 2010 16:12
Last Modified:30 Apr 2010 16:12

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