title: Spatial Mapping of Protein Adsorption on Mesoporous Silica Nanoparticles by Stochastic Optical Reconstruction Microscopy.
abstract: Exposure to biological fluid envelops a nanoparticle in layers of proteins and biomolecules, which has a profound impact on the nanoparticle's biological fate. Although the identities and amounts of the proteins in this "corona" have been thoroughly examined, the spatial arrangement of the proteins is unclear, a problem that is compounded on porous nanoparticles due to penetration of proteins within the porous network. To address this problem, we have developed a procedure based on information derived from stochastic optical reconstruction microscopy. We employed a mathematical model to reveal the penetration depth of several proteins within porous nanoparticles. Understanding protein penetration depth provides an explanation for the composition of the protein corona, aiding in the development of safe and effective particle-based therapies.
authors.affiliation: Department of Chemistry, University of Vermont , 82 University Place, Burlington, Vermont 05405, United States.
authors.forename: Alden M
authors.initials: AM
authors.lastname: Clemments
authors.affiliation: Instituto de Tecnología Química (Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas) , Avenida de Los Naranjos s/n, 46022 Valencia, Spain.
authors.forename: Pablo
authors.initials: P
authors.lastname: Botella
authors.affiliation: Department of Chemistry, University of Vermont , 82 University Place, Burlington, Vermont 05405, United States.
authors.forename: Christopher C
authors.identifier: 0000-0002-3092-8104
authors.initials: CC
authors.lastname: Landry
mesh_terms: D000327:Adsorption; D008853:Microscopy; D053758:Nanoparticles / Q000737:chemistry*; D055620:Optical Phenomena; D010316:Particle Size; D016062:Porosity; D011506:Proteins / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013269:Stochastic Processes; D013499:Surface Properties
chemical_list: D011506:Proteins; D012822:Silicon Dioxide