Nano fluidic characterization
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Nano-fluidic Characterization. Team Members: David Sharp, Davis West, Justin Davis. Project Description. Nano-porous membranes are ideally used as a medicinal filters. Can be used for nano -device manufacturing

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Nano fluidic characterization

Nano-fluidic Characterization

Team Members:

David Sharp, Davis West, Justin Davis


Project description
Project Description

Nano-porous membranes are ideally used as a medicinal filters.

Can be used for nano-device manufacturing

Main objective is to build apparatus to measure characteristics of nano-porous membranes

Characteristics include pressure differences, fluid flow and average temperature.

*SEM Photograph of a Nano-porous membrane




Concept summary
Concept Summary

Pressure between pores represents the pressure between whole membrane

As flow through membrane increases, pressure difference also increases

Varying pore diameter exponentially increases pressure difference


System architecture
System Architecture

  • All sensors connected to computer through USB

  • All sensor values read on LabVIEW

  • Pressure transducers connected through DAQ device

    • Signal calibrated to read pressure values instead of voltage

  • Thermocouple connected with USB converter

  • Drivers for Flow sensor used to read values on LabVIEW


Labview layout
LabVIEW Layout


System design
System Design

Pressure Transducers

Syringe Pump

Flow Sensor

Thermocouple

Membrane Holder



System breakdown continued
System Breakdown Continued…

Consists of various couplings and fittings to maintain pipe diameter

Each sensor is fastened securely to the frame

Membrane holder located at center of system

Pressure Transducer on both sides of membrane holder

Thermocouple placed near end of system

Flow Sensor at end to validate pump flow

System elevated to keep flow level





Project evaluation
Project Evaluation

  • System is able to successfully read pressure and flow values through the system

  • Results found show that each membrane has a slightly higher or lower pressure difference for each flow rate

    • Due to the membrane pore diameters being slightly different than the true values

  • Average difference between calculated and experimental values is slight


Future opportunities
Future Opportunities

  • Clear membrane better integrated for higher pressure readings.

  • Height of system more adjustable

  • LabVIEW synchronized with syringe pump

    • Would start as soon as the program began taking measurements,

    • Setting changes on the front panel


A special thanks to our sponsors
A Special Thanks to Our Sponsors

Dr. Michael Schrlau (ME Department)

MasoudGolshadi - PhD Student

Michael Zona(Xerox) - Industry Guide

John Wellin (ME Department) - Guide


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