purpose: to develop a nanofibrous polycaprolacton (pcl) substrate for limbal stem cell (lsc) expansion that can serve as a potential alternative substrate to replace human amniotic membrane. methods: the human limbal stem cells (lscs) were used to evaluate the biocompatibility of substrates (nanofibrous scaffold, and human amniotic membrane) regarding cellular phenotypic profile, viability, pro...

We consider the radially expanding sheet formed upon impact of a drop on a surface of comparable size to that of the drop. A unified self-similar solution for the unsteady radial thickness profile of the expanding sheet is derived from first principles in the inviscid limit. This unified functional form reconciles two conflicting theoretical profiles of sheet thickness proposed in the literatur...

Improved online techniques for surface profile measurement can be beneficial in high/ultra-precision manufacturing, in terms of enabling manufacture and reducing costs. This paper introduces a spatially dispersed short-coherence interferometer sourced by a super luminescent diode. This technique uses a broadband light source, which is spatially dispersed across a surface using a reflective grat...

Semiconductor processing in manufacturing must be fast and highly accurate in the measuring of the surface profile of soft thin films such as photoresist. Since photoresist surface is very smooth and deformable, a device to measure is required that will measure vertical direction with a nanometer resolution in height and not damage the film during the measurement. To do this, we developed an ap...

A rapid prototyping method is invented, which works on a specific data structure produced by an optical metrology technique: 360-degree surface profile scanning. A computer algorithm takes an object profile data, restructure the format, generate horizontal and vertical ribs, lay out the ribs on a 2D canvas and output the geometries to a file format compatible with laser cutters. A laser cutting...