Microfluidic modeling and design for continuous flow in electrokinetic mixing-reaction channels

Modeling, Simulation and Optimized Design of a Microreactor for a Two‐Step Reaction

A two‐step microreactor for the investigation of glucose oxidation is presented. A model is created to pre‐judge the changes in concentrations of the reactants in the straight channels of the microreactor. The structure of the rapid mixing‐reaction units of the microreactor was optimized, and the optimal parameters were found to be p = 1:3, r = 1:1, and ws = 60 μm. The model and the optimization method can facilitate the design of microreactors.

Miniaturized lensless imaging systems for cell and microorganism visualization in point-of-care testing

Low-cost, robust, and user-friendly diagnostic capabilities at the point-of-care (POC) are critical for treating infectious diseases and preventing their spread in developing countries. Recent advances in micro- and nanoscale technologies have enabled the merger of optical and fluidic technologies (optofluidics) paving the way for cost-effective lensless imaging and diagnosis for POC testing in resource-limited settings. Applications of the emerging lensless imaging technologies include detecting and counting cells of interest, which allows rapid and affordable diagnostic decisions. This review presents the advances in lensless imaging and diagnostic systems, and their potential clinical applications in developing countries. The emerging technologies are reviewed from a POC perspective considering cost effectiveness, portability, sensitivity, throughput and ease of use for resource-limited settings.