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Laser-Induced Graphene Interfaces with Controlled Electrical Conductivity, Topography and Wettability for Biomedical

Lidia Lizbeth Hernández-Cubas1,2, Paola Sánchez-Moreno3, Andrea Capasso4

  • 1Departamento de Biología Celular, Universidad de Granada, E-18071 Granada, Spain.

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|January 1, 2026
PubMed
Summary
This summary is machine-generated.

Laser-induced graphene (LIG) offers a scalable and cost-effective method for creating neural interfaces. Tailored LIG substrates demonstrate stable properties and influence neural cell behavior, showing promise for advanced neuro-biomedical applications.

Keywords:
biocompatibilitybiological applicationsconductivitylaser-induced graphenescaffoldstopographywettability

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Area of Science:

  • Biomaterials Engineering
  • Nanotechnology
  • Neuroscience

Background:

  • Conventional graphene fabrication for neural interfaces is costly and complex.
  • Laser-induced graphene (LIG) offers a scalable, cost-effective alternative using direct laser writing.
  • LIG allows precise control over material properties like conductivity and surface roughness.

Purpose of the Study:

  • To engineer and characterize LIG substrates with tailored properties for neural interfaces.
  • To assess the stability of LIG materials in biological environments.
  • To evaluate the influence of LIG surface architecture on neural cell behavior.

Main Methods:

  • Fabrication of three distinct LIG substrates using controlled laser parameters.
  • Characterization of LIG properties including wettability, roughness, mechanical, and electrical stability.
  • Biocompatibility assays using neural-like cells to assess adhesion, proliferation, and alignment.

Main Results:

  • LIG substrates exhibited stable physicochemical properties under physiological conditions.
  • Preliminary biocompatibility assays showed encouraging results with neural-like cells.
  • Laser-induced patterning significantly influenced cellular behavior, enhancing adhesion and alignment.

Conclusions:

  • LIG is a tunable and scalable strategy for developing next-generation neural interfaces.
  • Surface architecture of LIG substrates plays a critical role in modulating neural cell responses.
  • Engineered LIG materials show significant potential for neuro-biomedical applications.