Cells at Wrinkled Interfaces: Laser‐Assisted Strain Engineering of Thin Elastomer Films to Form Variable Wavy Substrates for Cell Culture (Small 21/2019)

In article number 1900162, Caterina Tomba, Valeriy Luchnikov, and co‐workers present a versatile approach to produce curved surfaces with dynamic and variable topographic parameters. Mid‐infrared laser exposure allows for surface stiffening of an elastomer that is suitable as wavy substrate to grow cells on smooth and more realistic micro‐environments. The wrinkled geometry is tuned by controlling the shape and stretching rate of the substrate and the irradiation parameters of the laser. This technique is easily accessible for further studies on cell migration and cell fate determination.