09/30/2013 12:00:00 AM EssaysDepartment of Chemistrystory Kristina Clemons works with the nanomanipulator developed by Guido Verbeck, associate professor of chemistry. (Photo by Jonathan Reynolds) UNT doctoral student Kristina Clemons works with the nanomanipulator developed by Guido Verbeck, associate professor of chemistry. Without destroying a piece of evidence — like a fingerprint — the device can detect and analyze chemicals present on the nanoscale. A small-scale version of the device was deployed to Afghanistan this summer, allowing military investigators in the field to identify chemical signatures. (Photo by Jonathan Reynolds)