edge.rit.eduedge.rit.edu/.../public/microfluidicchanneldesign.docx · web view*channel and valve...
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Microfluidic Well/Channel Design● Well design for protein (from volumes & concentrations)
○ Volume: 250uL■ Selected based on recommended working volume of Corning for 96 well
plate (75-200uL), but also considering volumes large enough for device to handle
○ Diameter of well: 7mm■ Selected based on diameter of standard 96 well plate commonly used in
fluorescent plate readers○ Height of well: 6.5mm
■ Calculated using equation:● V= pi*r^2*h● h=V/pi*r^2
● Well design for reagent○ Volume: 1000uL
■ Selected as a volume greater than that required for a single protein well■ Volume would be ideal for multiple wells with protein, act as a main
reservoir to lead out to additional wells○ Diameter of well: 10mm
■ Selected to keep increase of height of well minimal while increasing the volume the well holds with respect to the protein well
○ Height of well: 12.7mm ■ Calculated with equation used in protein well design
● Integration of solenoid valve○ Design of channels to incorporate valve
■ Narrow channels of minimum height and width for valve■ Length of channel (both inlet and outlet)- 10mm■ Must consider device’s ability to print
○ Consider height and width of valve to fit appropriately into PDMS● Hand drawn design
○ Image 1
*Channel and valve measurements no longer valid, need to incorporate new valve○ Image 2
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● PDMS design
○ Using Silhouette Studio - craft cutting device○ Print in individual layers, use plasma wand to polarize surfaces, stick together,
heat at approximately 80 degrees Celsius to strengthen bonds○ Layer thicknesses available: 100um, 300um, 600um
● Next Steps○ Re-design wells to fit most up to date valve design○ Make prototype of PDMS wells and channels