title: Investigation of adsorption behavior of bisphenol A on well fabricated organic surfaces using surface plasmon resonance spectroscopy.
abstract: Molecular adsorption of bisphenol A (BPA) on three types of self-assembled monolayers with different functionalities, such as -CH3, -SH, and -COOH, was examined using surface plasmon resonance (SPR) spectroscopy. BPA molecules in an aqueous solution were easily adsorbed onto a hydrophobic surface compared to a hydrophilic surface. Sorption behavior of BPA into poly(2-methoxyethyl acrylate) (PMEA) layer, which is known as a biocompatible polymer, was also investigated. Sorption and desorption dynamics of BPA into PMEA were found to be very rapid and quite reversible. The swelling of PMEA by sorption of BPA results in the change in SPR angle and allows one to quantify the BPA concentration below 100 ppm. In addition, the transport mechanism of BPA within the membrane of organ can be inferred by the experimental results.
authors.affiliation: School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 151744, Korea.
authors.forename: Jungwoo
authors.initials: J
authors.lastname: Moon
authors.forename: Seogil
authors.initials: S
authors.lastname: Oh
authors.forename: Taewook
authors.initials: T
authors.lastname: Kang
authors.forename: Surin
authors.initials: S
authors.lastname: Hong
authors.forename: Jongheop
authors.initials: J
authors.lastname: Yi
mesh_terms: D000179:Acrylates / Q000737:chemistry; D000327:Adsorption; D001559:Benzhydryl Compounds; D004703:Endocrine System / Q000166:cytology; D006046:Gold / Q000737:chemistry; D015394:Molecular Structure; D053758:Nanoparticles / Q000737:chemistry; D010636:Phenols / Q000737:chemistry / Q000493:pharmacokinetics*; D011108:Polymers / Q000737:chemistry; D013053:Spectrophotometry; D020349:Surface Plasmon Resonance / Q000379:methods*; D013499:Surface Properties; D000098826:Bisphenol A Compounds
chemical_list: D000179:Acrylates; D001559:Benzhydryl Compounds; D006046:Gold; D010636:Phenols; D011108:Polymers; C413485:poly(2-methoxyethylacrylate); C006780:bisphenol A; D000098826:Bisphenol A Compounds