title: Two-dimensional array Debye ring diffraction protein recognition sensing.
abstract: We attach 2-D colloidal arrays onto the surface of hydrogels containing biotin. The hydrogel volume shrinks with increasing concentrations of avidin due to the formation of avidin-biotin crosslinks. This causes the Debye diffraction ring diameter to increase, and the 2-D diffraction wavelength to blue-shift.
authors.affiliation: Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA.
authors.forename: Jian-Tao
authors.initials: JT
authors.lastname: Zhang
authors.forename: Xing
authors.initials: X
authors.lastname: Chao
authors.forename: Xinyu
authors.initials: X
authors.lastname: Liu
authors.forename: Sanford A
authors.initials: SA
authors.lastname: Asher
mesh_terms: D001360:Avidin / Q000737:chemistry*; D001710:Biotin / Q000737:chemistry; D003102:Colloids / Q000737:chemistry; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate / Q000737:chemistry; D015394:Molecular Structure; D010316:Particle Size; D013499:Surface Properties
chemical_list: D003102:Colloids; D001360:Avidin; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; D001710:Biotin