Over nearly seven years researching 3D printing systems in MIT’s Media Lab, Jifei Ou SM ’14, PhD ’19 began to suspect the work could lead to better products. He never could have imagined it would help address supply shortages caused by a global pandemic. Since March of last year, Ou’s company, OPT Industries, has been working with hospitals to deliver a new type of nasal swab for Covid-19 testing. The swabs make use of thin, hairlike structures Ou developed while at MIT. Tiny woven lattices within OPT’s swabs allow them to absorb and release more fluid than conventional swabs.