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In JoVE (1)
Other Publications (3)
Articles by Xavier Casadevall i Solvas in JoVE
Fluorescence detection methods for microfluidic droplet platforms
Xavier Casadevall i Solvas1, Xize Niu1, Katherine Leeper1, Soongwon Cho1, Soo-Ik Chang2, Joshua B. Edel1, Andrew J. deMello3
1Department of Chemistry, Imperial College London, 2Department of Biochemistry, Protein Chip Research Center, Chungbuk National University, 3Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich
Droplet-based microfluidic platforms are promising candidates for high throughput experimentation since they are able to generate picoliter, self-compartmentalized vessels inexpensively at kHz rates. Through integration with fast, sensitive and high resolution fluorescence spectroscopic methods, the large amounts of information generated within these systems can be efficiently extracted, harnessed and utilized.
Other articles by Xavier Casadevall i Solvas on PubMed
Mapping of Fluidic Mixing in Microdroplets with 1 Micros Time Resolution Using Fluorescence Lifetime Imaging
Analytical Chemistry. May, 2010 | Pubmed ID: 20356052
Microdroplets generated in microfluidic channels hold great promise for use as substrates in high-throughput chemical and biological analysis. These water-in-oil compartments can serve as isolated reaction vessels, and since they can be generated at rates in excess of 1 kHz, thousands of assays can be carried out quickly and reproducibly. Nevertheless, sampling the large amount of information generated from these platforms still remains a significant challenge. For example, considering the high droplet generation rates and velocities, reproducibility and micrometer resolution are challenging requirements that must be fulfilled. Herein we combine confocal fluorescence lifetime imaging microscopy with a statistical implementation that permits the analysis of mixing phenomena within microdroplets with a temporal resolution of 1 mus. Importantly, such exquisite resolution is only possible as a result of the large number of droplets sampled and their high structural reproducibility.
Chemical Communications (Cambridge, England). Feb, 2011 | Pubmed ID: 20967373
We report recent advances in the field of droplet-based microfluidics. Specifically, we highlight the unique features of such platforms for high-throughput experimentation; describe functional components that afford complex analytical processing and report on applications in synthesis, high-throughput screening, cell biology and synthetic and systems biology. Issues including the integration of high-information content detection methods, long term droplet stability and opportunities for large scale and intelligent biological experimentation are also discussed.
Chemical Communications (Cambridge, England). Sep, 2011 | Pubmed ID: 21818494
We present a passive microfluidic strategy for sorting adult C. elegans nematodes on the basis of age and size. The separation mechanism takes advantage of phenotypic differences between 'adult' and 'juvenile' organisms and their behaviour in microfluidic architectures. In brief, the microfluidic device allows worms to sort themselves in a passive manner.