The researchers utilize a process invented at Northwestern called Dip-Pen Nanolithography to make arrays of proteins with features more than 1,000 times smaller than those used in conventional arrays.

Single nucleotide polymorphism (SNP) arrays were originally designed and applied to genetic association studies, but their use has been successfully extended to the direct detection of structural ...

Device performance was evaluated under different test conditions, including surface coatings with biomolecules like alanine.