1998 | OriginalPaper | Buchkapitel
Advantages Afforded by Miniaturization and Integration of DNA Analysis Instrumentation
verfasst von : M. Allen Northrup, Bill Benett, Dean Hadley, Paul Stratton, Phoebe Landre
Erschienen in: Microreaction Technology
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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Miniaturization of chemical reaction chambers, along with the integration with low-cost detection components for real-time product quantification allows for significant improvements in instrumentation. Bulk chemical reactions can benefit from increased control at the microscopic level, according to the general volumetric reaction formula:$$ Q\, = \,1/U\int_{qr} {dU} $$ where, Q is the volumetric reaction rate (moles/time · volume), U is the volume, and qris the “point” reaction rate at a “microscopic” volume unit. This equation is only valid if everything is uniform at a microscopic scale, that is, the reaction is working equally at all points. This uniformity is difficult to maintain, especially in reactions that have: 1) multiple co-reactants, 2) narrow and uniform condition (i.e., (temperature and pH) requirements, 3) macromolecular biological components, such as enzymes, and 4) diffusion limiting conditions. Typically, bulk bioreactors require significant effort to maintain such uniformity and often are difficult to scale up as a result. Arrays of miniaturized reactors with individual control can replace the less effective bulk systems, provide better uniformity, and therefore increase productivity.