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Here, graphitic circuitry is created on the paper-based microfluidic device by repeatedly sketching with a pencil. [55] [56] [57] For example, this electrical integration method was used in a completely hand-drawn paper microfluidic device for point-of-care cancer screening. [57]
Microfluidic techniques such as droplet microfluidics, paper microfluidics, and lab-on-a-chip are used in the realm of food science in a variety of categories. [131] Research in nutrition, [ 132 ] [ 133 ] food processing, and food safety benefit from microfluidic technique because experiments can be done with less reagents.
Microfluidics refers to the flow of fluid in channels or networks with at least one dimension on the micron scale. [1] [2] In open microfluidics, also referred to as open surface microfluidics or open-space microfluidics, at least one boundary confining the fluid flow of a system is removed, exposing the fluid to air or another interface such as a second fluid.
It is now primarily used as a teaching tool, having been replaced in the laboratory by other chromatography methods such as thin-layer chromatography (TLC). This analytic method has three components, a mobile phase, stationary phase and a support medium. The mobile phase is a solution that travels up the stationary phase by capillary action ...
Paper has been used in analytical chemistry as far back as the 1800s, when litmus paper was first reported, and has since been used for techniques such as paper chromatography and lateral flow assays. [3] However, it was only identified as a material for microfluidic assays in 2007, when patterned paper was proposed as a low-cost platform for ...
Oxygen concentration control is one of the key elements when designing the microfluidic systems, whether the aerobic species or when modulating cellular functions in vivo, such as baseline metabolism and function. [65] Multiple microfluidic systems have been designed to control the desired gas concentrations for cell culture.
Digital microfluidics (DMF) is a platform for lab-on-a-chip systems that is based upon the manipulation of microdroplets. Droplets are dispensed, moved, stored, mixed, reacted, or analyzed on a platform with a set of insulated electrodes.
Capillary electrophoresis (CE) is a family of electrokinetic separation methods performed in submillimeter diameter capillaries and in micro- and nanofluidic channels.Very often, CE refers to capillary zone electrophoresis (CZE), but other electrophoretic techniques including capillary gel electrophoresis (CGE), capillary isoelectric focusing (CIEF), capillary isotachophoresis and micellar ...