Functional binary micropattern of hyperbranched poly(ether amine) (hPEA-AN) network and poly(ether amine) (PEA) brush for recognition of guest molecules.
A binary micropattern of anthracene-contained hyperbranched poly(ether amine) (hPEA-AN) network and poly(ether amine) (PEA) brush on gold surface was developed and explored. First, a micropatterned hPEA-AN network array on gold surface was fabricated by photolithography via photodimerization of anthracene moieties, and a PEA brush was subsequently immobilized on the remaining free gold surface areas by chemical adsorption of thiol groups. The patterned hPEA-AN network exhibits selectivity with respect to the adsorption of hydrophilic dyes: Methyl orange is strongly adsorbed, but rhodamine 6G is not, as indicated by the fluorescence response. The PEA brush domain exhibits excellent protein adsorption repellency, whereas the hPEA-AN network layer readily adsorbs protein. These characteristics make the binary hPEA-AN network and PEA brush array sensitive to different kinds of dyes and proteins, which open up pathways to potential applications as microsensors, biochips, and bioassays.
School of Chemistry & Chemical Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
Xiaolu
X
Ye
Xuesong
X
Jiang
Bing
B
Yu
Jie
J
Yin
Philipp
P
Vana
D000327:Adsorption; D000588:Amines / Q000737:chemistry*; D000873:Anthracenes / Q000737:chemistry; D001391:Azo Compounds; D004987:Ethers / Q000737:chemistry; D005456:Fluorescent Dyes; D006046:Gold; D057927:Hydrophobic and Hydrophilic Interactions; D018613:Microscopy, Confocal; D056951:Photoelectron Spectroscopy; D011108:Polymers / Q000737:chemistry*; D011506:Proteins / Q000032:analysis*; D012235:Rhodamines; D013438:Sulfhydryl Compounds / Q000737:chemistry; D013499:Surface Properties
D000588:Amines; D000873:Anthracenes; D001391:Azo Compounds; D004987:Ethers; D005456:Fluorescent Dyes; D011108:Polymers; D011506:Proteins; D012235:Rhodamines; D013438:Sulfhydryl Compounds; C026188:rhodamine 6G; C100258:methyl orange; D006046:Gold