A Method for Creation of 2 and 3-Dimensional Micro Channels of Varied Dimensions using Replication and Molding around a Wire

Patent Status: 

Patent Filed

Indian Patent Applicaton No: 

1455/DEL/2008

Patent Category: 

Overview: 

A process to produce 3-D micro-channel in PDMS by soft lithography using a copper wire of 40-80 pm diameters. This technique can be used to carve 3- D shapes within PDMS polymer, which can have impact of micro-fluidic transport and sensory development.

Key Features: 

  • Replication and molding around a copper wire is used to make 2-D and 3-D micro-channels.
  • The dimensions of the channel vary from 40-80 microns.
  • Different shapes of copper wires can be used to create intricate features.
  • Anhydrous toluene is used removal of copper wires.
  • These techniques can be used to formulate novel solenoid valving mechanism and micro-fluidic damper.
  • The fabrication method can also be used for nanometer range channels and cavities in soft polymeric materials like PDMS.

Applications: 

  • Biomedical engineering.
  • MEMS researcher.
  • Chemical and medical sensor.

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