Breaking Story
Scientists have employed photographic techniques and polymer science to develop a new technique for printing two-dimensional sheets of polymers that can fold into three-dimensional shapes when water is added. The method could be used to direct growth of blood vessels or tissues in the laboratory.
The polymer gel used in these experiments swells and expands uniformly when exposed to water. The researchers used a photomask and ultraviolet light to “print” a pattern on to the polymer sheet, a technique called photolithography.
The polymer gel used in these experiments swells and expands uniformly when exposed to water. The researchers used a photomask and ultraviolet light to “print” a pattern on to the polymer sheet, a technique called photolithography.
Image credit: NSF
