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Droplet formation using a flow focusing device. [17] Diagram of flow focusing droplet formation device commonly used in microfluidic devices. Liquid flowing in from the left is pinched off into droplets by an oil flowing in from the top and bottom. [10] Two stream reagent addition using a flow focusing approach with a planar chip format. [18]
The next parameter that is chosen for the development of a biomedical instrumentation device would be the transducer design, which for this example would be changing glucose concentration to a measurable value such as voltage via the reaction from glucose and glucose oxidase's products with a reduction reaction causing a current to flow being ...
A module with two input streams at the top, an AND output bucket in the middle, and an XOR output stream at the bottom.. Fluidics, or fluidic logic, is the use of a fluid to perform analog or digital operations similar to those performed with electronics.
It has practical applications in the design of systems that process low volumes of fluids to achieve multiplexing, automation, and high-throughput screening. Microfluidics emerged in the beginning of the 1980s and is used in the development of inkjet printheads, DNA chips, lab-on-a-chip technology, micro-propulsion, and micro-thermal technologies.
A second type is the capillary-tube type of thermal mass flow meter. Many mass flow controllers (MFC) which combine a mass flow meter, electronics and a valve are based on this design. Furthermore, a thermal mass flow meter can be built by measuring temperature differential across a silicon-based MEMS chip.
In comparison to a device, a drug takes up to nine years longer to reach the market. [3] [5] It can take drugs up twelve years to be granted FDA approval. [3] [5] In general, for class I, II and III devices, from the design process until the final FDA market clearance, it can take anywhere from three to seven years. [3] [5]