The Clark Research Laboratory is located on the University of Rochester's River Campus in the Robert B. Goergen Hall for Biomedical Engineering and Optics, a state-of-the-art educational and research facility. The main research lab is located on the second floor and houses two custom multi-axis atomic force microscopes, two optical trapping systems, an electrospinning / electrospaying apparatus, and a complete array of instrumentation for vibration and acoustics measurements. An auxiliary lab containing additional electrospinning /electrospraying apparatus is located in the lower level of the Hopeman Engineering Building.
The laser room containing a holographic optical trapping and patterning system. Phase holograms are calculated and displayed to manipulate microscopic particles in three dimensions similar to a 'tractor beam.' The phase holograms can also be used with coherent light to create desired patterns for lithographic applications. The amber filters prevent ultraviolet light from entering the room.
One of two atomic force microscopes (AFMs) located in the main laboratory. The pictured AFM is used to perform single molecule force spectroscopy on biological species Capable of measuring forces in the pN range and equiped with custom software to minimize pulling geometry errors, this instrument is useful for accurately determining the mechanical properties of several materials, including DNA.
A second optical trap capable of servo control. Optical traps use the momentum of light to exert forces on microscopic objects. As light is diffracted and reflected through dielectric objects, the change in momentum of the light results in a force exerted on the refracting object. By utilizing a feedback control scheme we can accurately position trapped objects and apply specified forces for micro-assembly and molecular interrogation applications.
An electrospinning / spraying apparatus connected to the laboratory's fume hood. Electrospinning uses an electrical charge difference to draw very fine fibers from a highly charged tip to a grounded collector. The liquid fibers dry or solidify in midair during convective flow before being captured by a motorized collecter. Micro/nanofibers can be made for many applications ranging from tissue scaffolds to conductive wires.
© 2010 University of Rochester - Last Modified: Thursday, May 13, 2010