title: A nanoengineering approach for investigation and regulation of protein immobilization.
abstract: It is known that protein attachment to surfaces depends sensitively upon the local structure and environment of the binding sites at the nanometer scale. Using nanografting and reversal nanografting, both atomic force microscopy (AFM)-based lithography techniques, protein binding sites with well-defined local environments are designed and engineered with nanometer precision. Three proteins, goat antibiotin immunoglobulin G (IgG), lysozyme, and rabbit immunoglobulin G, are immobilized onto these engineered surfaces. Strong dependence on the dimension and spatial distribution of protein binding sites are revealed in antibody recognition, covalent attachment via primary amine residues and surface-bound aldehyde groups. This investigation indicates that AFM-based nanolithography enables the production of protein nanostructures, and more importantly, protein-surface interactions at a molecular level can be regulated by changing the binding domains and their local environment at nanometer scale.
authors.affiliation: Department of Chemistry, University of California, Davis, California 95616, USA.
authors.forename: Yih Horng
authors.initials: YH
authors.lastname: Tan
authors.forename: Maozi
authors.initials: M
authors.lastname: Liu
authors.forename: Birte
authors.initials: B
authors.lastname: Nolting
authors.forename: Joan G
authors.initials: JG
authors.lastname: Go
authors.forename: Jacquelyn
authors.initials: J
authors.lastname: Gervay-Hague
authors.forename: Gang-yu
authors.initials: GY
authors.lastname: Liu
mesh_terms: D000327:Adsorption; D000818:Animals; D001665:Binding Sites; D001710:Biotin / Q000737:chemistry; D002417:Cattle; D006041:Goats; D007074:Immunoglobulin G / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D009113:Muramidase / Q000737:chemistry; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods*; D011485:Protein Binding; D015202:Protein Engineering / Q000379:methods; D011506:Proteins / Q000737:chemistry*; D011817:Rabbits; D013499:Surface Properties
chemical_list: D007074:Immunoglobulin G; D011506:Proteins; D001710:Biotin; D009113:Muramidase