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Related Experiment Video

Updated: Jun 22, 2026

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

Fabrication of arbitrary polymer patterns for cell study by two-photon polymerization process.

Hojeong Jeon1, Hirofumi Hidai, David J Hwang

  • 1Department of Mechanical Engineering, U.C. Berkeley, Berkeley, CA 94720-1740, USA.

Journal of Biomedical Materials Research. Part A
|June 2, 2009
PubMed
Summary
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Cell alignment on patterned surfaces is influenced by topography. A new fabrication method using two-photon polymerization allows for high-aspect-ratio patterns, revealing a critical 1-micrometer height threshold for contact guidance in fibroblast cells.

Area of Science:

  • Biomaterials Engineering
  • Cell Biology
  • Surface Science

Background:

  • Topographically patterned surfaces are crucial for controlling cellular functions.
  • Understanding cell contact guidance is vital for tissue engineering and regenerative medicine.

Purpose of the Study:

  • To develop a high-throughput method for fabricating high aspect ratio surface patterns.
  • To investigate the influence of pattern height on cell contact guidance.

Main Methods:

  • Utilized two-photon polymerization with low numerical aperture optics for rapid fabrication.
  • Created parallel line and orthogonal mesh patterns with varying heights (0.5-1.5 µm).
  • Seeded fibroblast cells onto patterned surfaces to observe alignment and contact guidance.

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Two-Photon Polymerization 3D-Printing of Micro-scale Neuronal Cell Culture Devices
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Two-Photon Polymerization 3D-Printing of Micro-scale Neuronal Cell Culture Devices

Published on: June 7, 2024

Control of Cell Geometry through Infrared Laser Assisted Micropatterning
11:04

Control of Cell Geometry through Infrared Laser Assisted Micropatterning

Published on: July 10, 2021

Related Experiment Videos

Last Updated: Jun 22, 2026

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

Two-Photon Polymerization 3D-Printing of Micro-scale Neuronal Cell Culture Devices
07:38

Two-Photon Polymerization 3D-Printing of Micro-scale Neuronal Cell Culture Devices

Published on: June 7, 2024

Control of Cell Geometry through Infrared Laser Assisted Micropatterning
11:04

Control of Cell Geometry through Infrared Laser Assisted Micropatterning

Published on: July 10, 2021

Main Results:

  • Demonstrated fabrication of high aspect ratio (approx. 10) patterns.
  • Observed that cell alignment strength varied with ridge height.
  • Identified a critical height threshold of approximately 1 micrometer for significant cell alignment.

Conclusions:

  • The developed fabrication technique enables efficient creation of complex surface topographies.
  • Surface pattern height is a key factor influencing cell contact guidance.
  • This method has potential applications in cell trapping and studying mechanotransduction.