| Title | Directly observed Au-S bond breakage due to swelling of the anchored polyelectrolyte |
| Authors | Zhang, Yanxia He, Jian'an Zhu, Ying Chen, Hong Ma, Hongwei |
| Affiliation | Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Suzhou 21513, Peoples R China. Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China. Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China. Peking Univ, Coll Engn, Dept Biomed Engn, Beijing 100871, Peoples R China. |
| Keywords | QUARTZ-CRYSTAL MICROBALANCE TRANSFER RADICAL POLYMERIZATION COVALENT BONDS BRUSHES POLYMERS ACTIVATION FORCE |
| Issue Date | 2011 |
| Publisher | chemical communications |
| Citation | CHEMICAL COMMUNICATIONS.2011,47,(4),1190-1192. |
| Abstract | A weak polyelectrolyte coating, carboxylated poly(oligo(ethylene glycol)methacrylate-co-2-hydroxyethylmethacrylate), was prepared via surface initiated polymerization (SIP) from initiators immobilized to gold surface through the Au-S bonds. When dry thickness increased up to 75 nm, this polyelectrolyte coating was pulled off the Au substrate by simply exposing to phosphate buffer saline (PBS, pH = 7.4, [Na(+)] = 150 mM). This covalent bond breaking (CBB) behavior was monitored in situ using a quartz crystal microbalance (QCM) and CBB was associated with the swelling of the anchored polyelectrolyte chains. |
| URI | http://hdl.handle.net/20.500.11897/241057 |
| ISSN | 1359-7345 |
| DOI | 10.1039/c0cc04291a |
| Indexed | SCI(E) |
| Appears in Collections: | 工学院 |
