Kumarappan Muthuraman

University at Buffalo · 2026

Microfluidic mixing chip

Designed and fabricated in a cleanroom

A PDMS microfluidic chip with red dye in serpentine channels and tubing attached
Role
MEMS lab, M.S. coursework
Organization
University at Buffalo
Period
2026
Location
Buffalo, NY
Tools and methods
  • SolidWorks (pattern design)
  • Cleanroom fabrication
  • Photolithography
  • Soft lithography
  • PDMS microfabrication
  • Spin coating
  • Channel design

A microfluidic chip I designed and fabricated in a cleanroom to study how two liquids mix through a designed channel geometry.

What I did

I designed the channel pattern in SolidWorks and fabricated the chip in the cleanroom using photolithography, soft lithography, spin coating and PDMS microfabrication.

Result

The chip showed controlled mixing of two liquids, completing the full cycle from pattern design to a working, validated device.

Photomask with the channel pattern on a glass slide, under cleanroom yellow light
Fig. 1. Photomask with the channel pattern
Patterned wafer resting in aluminum foil
Fig. 2. The patterned wafer
Gloved hand holding a glass slide in the cleanroom
Fig. 3. Working in the cleanroom