Micellar Peroxidase-Catalyzed Synthesis of Chiral Polyaniline

Abstract

Micellar peroxidase-catalyzed synthesis of chiral polyaniline (PANI) in the presence of dodecylbenzenesulfonic acid (DBSA) was developed. The effect of DBSA concentration on the catalytic efficiency of horseradish and palm tree peroxidases was examined. Favorable conditions for the enzymatic synthesis of chiral PANI, determined by a multiple factors design, demonstrated that the PANIs with the highest chirality were produced in the presence of low concentrations of optically active camphorsulphonic acid (CSA). Unexpectedly, the chiral PANI was also synthesized in the absence of CSA in feed. The favorable conditions for the enzymatic production of chiral and conducting PANIs were shown to be different. The morphology of the chiral PANI particles was examined by transmission and scanning electron microscopies.

Enzymatic oligomerization and polymerization of arylamines: state of the art and perspectives

“…It was recently claimed that chiral, conducting, and water-dispersible PANI was prepared by the HRP/H 2 O 2 -triggered polymerization of aniline in AOT micellar solution without any other chiral inducer but HRP itself (Zou et al 2013). Micelles from dodecylbenzenesulfonate in the presence as well as the absence of optically active CSA were also used as templates for the formation of chiral conducting PANI with PTP/H 2 O 2 at pH 3.5 (Caramyshev et al 2007). The SDBS micelle-assisted laccase-catalyzed oxidative polymerization of aniline with O 2 at pH 3.5–4.0, leading to stable dispersions of PANI, was reported by Streltsov et al (2008, 2009) and Zhang et al (2014b).…”

New Materials in Electochemical Sensors for Pesticides Monitoring

“…For example, proteins can be incorporated into conducting polymers whilst retaining their biological integrity . Aboutanos et al ( 1999) reported the preparation of chiral polyaniline-camphorsulfonic acid colloids using silica as the dispersant in the absence of a steric stabiliser, whereas Caramyshev et al ( 2007) proposed the micelar synthesis of chiral conducting polyaniline in presence de dodecylbenzenesulfonic acid using an enzyme as a catalyst for aniline polymerization. Okuno et al (2002) also proposed a polypyrrole colloid that had been prepared electrochemically and overoxidized at +1.5 V to create a complementary cavity for recognition of molecules structurally similar to the dopant.…”

Enzymatic Synthesis of Electrically Conducting Polymers

“…DBSA has also been used along with a laccase derived from the fungi Trametes hirsute to produce conducting PANI (46,47). Additionally, a chiral PANI was produced with palm tree peroxidase (PTP), DBSA, and low concentrations of CSA (48). PTP was shown to have a higher enzymatic activity compared to HRP both with and without the presence of DBSA.…”