CAPSTONE DESIGN PARTICIPANTS

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Andrew Bright

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Timothy Matthew Gibson

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Gregory Lazaris

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Jack Tinmouth

Infiltration of Metallic Nanoparticles into Binder Jet 3D Printed Metal Parts

1

Binder jet additive manufacturing (BJAM) is becoming one of the most popular 3D printing technologies for fabricating metal objects. It is a low-cost alternative to other metal part production methods and provides the ability to create large parts with complex geometries. However, objects produced with BJAM have lower mechanical strengths than other fabrication methods due to high porosity in the parts. We have created a novel BJAM binder composed of an organic adhering agent and metallic nanoparticles. The nanoparticles in our binder will fill the pores in the metal part, reducing the porosity and increasing the object’s mechanical strength.

Consultant: Mihaela Vlasea

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Rawoofeen Chowdhury

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George Fawzy

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Hidekel Mendoza

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Leander Rodrigues

Infravenous

3

Compared to conventional fingerprint authentication, vein pattern technology is more accurate, requires less maintenance and is unaffected by interference on the skin surface. Infravenous is a versatile, compact and cost-effective biometric authentication device. To authenticate users, the device uses infrared light to image their finger vein pattern. Our imaging processing pipeline then extracts key features from the pattern and uses a machine learning model to identify the user. This device can integrate with both digital and physical systems, meaning Infravenous’ applications span from physical locks to mobile apps. Ultimately, Infravenous makes cutting-edge biometric technology easily accessible and affordable.

Consultant: Otman Basir

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Yousef Ibrahim

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Aidan Luscombe

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Cameron Martin

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John Tytus

I Can't Believe it's not Graphite: Unlocking Lithium Metal Battery Performance Using Interfacial Nanolayers

4

Lithium Ion Batteries (LIBs) are the most important energy storage device of the 21st century, enabling many modern mobile technologies. For unlocking electric vehicle and stationary energy performance, energy stored per unit volume is a crucial metric, and modern LIBs are near their theoretical limit in this regard. Lithium metal is a more dense alternative that is much more unstable than LIBs. Our project has leveraged graphene thin films and silver nanolayers in a lithium metal system to mimic the stability of LIBs while vastly outperforming them in energy density, allowing for futuristic applications to be explored.

Consultant: Michael Pope

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Jacob Nigh

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Michael Orlando

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Dean Stipanic

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Reid Wotton

Magnetic Nanoparticle-based Lateral Flow Assay for the Detection of E.coli in Canadian Waterways

5

Escherichia coli (E.coli) is a bacteria that is commonly found in recreational water and is an indicator of harmful fecal pathogens. Detection of these bacteria is difficult to conduct in the field, meaning samples must be sent to a lab. Long lead times for testing create a health risk. We intend to produce a paper-based sensor that is capable of detecting small E.coli concentrations quickly, allowing testing to be done on the same day. To detect E.coli, functionalized magnetic nanoparticles are used to bind and isolate the bacteria which can be detected on the paper sensor.

Consultant: Marc Aucoin

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Haig H. Altounian

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Prashant Bagga

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Alexander Eyre

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Jonathan Kingston

A Novel Design for Water Filtration

6

Fresh water scarcity is a significant issue throughout the world. Currently, reverse osmosis processes are used to convert salt water into fresh water; however, this process requires significant amounts of energy. To create a more efficient filter for desalination, a prototype was developed using a porous membrane. This prototype uses the same process as standard reverse osmosis for desalination, but the membrane has the potential to be considerably cheaper and more efficient than current options. By allowing water to pass through the pores while rejecting salt ions, the design allows for a filtration process using less energy.

Consultant: Shirley Tang

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