Protein-assisted conjugated polymer microarray: Fabrication and sensing applications

Abstract

A new strategy is performed to fabricate conjugated polymer microarray with the assistance of protein in this work. The water-soluble cationic conjugated polymer employed in the present work is capable of absorbing light at 510 nm, which makes it compatible with a variety of commercial microarray scanners. It is demonstrated that the protein-assisted conjugated polymer microarray exhibits higher fluorescence signal and better stability in comparison with the case without protein. The conjugated polymer microarray can be used for sensitive detection of picric acid (PA). A major advantage of our approach is its simplicity and chemical linking is not required between the conjugated polymer and microarray substrate. Considering the simplicity of the preparation of the conjugated polymer microarray, it is anticipated that novel sensing platforms will be constructed by employing this versatile method.

Sustainable synthesis of hollow Cu-loaded poly(m-phenylenediamine) particles and their application for arsenic removal

“…As a diamine derivative of polyaniline, poly(phenylenediamine) has many important applications in sensors, catalysis, electrodes and actuators, etc. [1][2][3][4][5][6][7][8] In particular, widespread attention has been attracted to investigate the adsorption performance of poly(phenylenediamine) over recent decades due to its superior redox reversibility and chelation ability, [9][10][11][12] and it can be used for removing various metals ions from water, such as Cr(VI), 13 Hg(II) 14 and Ag(I). 15 Among the three isomers of poly(phenylenediamine)s, poly(m-phenylenediamine) (PmPD) as an adsorbent possesses some important virtues: (i) it is insoluble in common solvent, (ii) has high water permeability, (iii) can be produced in high yields, (vi) and its synthesis doesn't involve high temperature or acidic solvents.…”