Gamze Celik Cogal

Pamukkale University · Department of Chemistry

An electrochemical-sensing platform for determination of dopamine (DA) was fabricated using MnO2–polyaniline (MnO2–PANI) composite. The MnO2–PANI composite was prepared through in situ radio-frequency plasma polymerization of aniline monomer over MnO2 under rotating conditions and followed by external iodine doping to boost conductivity of final I2...

Artificial nano‐ and microswimmers are promising as versatile nanorobots for applications in biomedicine, environmental chemistry, and materials science. Herein, a hybrid micromotor containing a conjugated polymer (poly(3,4‐ethylenedioxythiophene) (PEDOT), and a catalytic structure composed of platinum (Pt) synthesized using a template‐supported el...

This work introduces improved performances of self-propelled tubular micromotors based on radio frequency (RF)–rotating plasma-prepared graphene oxide-poly(aniline) (GO-PANI), graphene oxide/poly(ethylaniline) (GO-PEANI), and graphene oxide/poly(fluoroaniline) (GO-PFANI) composites as outer layer and platinum (Pt) as the catalytic inner layer. Scan...

Functionalized micro/nanomotors having immobilized biological molecules provide excellent and powerful tools for the detection of target molecules. Based on surface modifications and mobilities of micromotors, we report herein a new experimental design of high-speed, self-propelled and plasma modified micromotors for biomedical applications. Within...

In this study, a new lactose biosensor has been developed in which the 3,4-ethylenedioxythiophene/thiophene (EDOT/Th) copolymer is used as a transducer. The EDOT/Th copolymer was deposited on the glassy carbon electrode to be used as the working electrode. In addition to the working electrode, the three-electrode system was used in both the electro...

Vanadium pentoxide (V2O5) electrochromic material was modified by furan plasma polymerization method and electrochromic properties of the new V2O5/Polyfuran (PFu) composite material were examined in three different electrolytes (lithium perchlorate (LiClO4), lithium trifluoromethanesulfonate (LiTRIF), sodium perchlorate (NaClO4), which influence si...

Nanocomposites of graphene (GR) with polythiophene (PTh) or poly(3,4-ethylenedioxythiophene) (PEDOT) through a versatile and environmentally benign process, utilizing radio frequency (RF) plasma polymerization, were made. The morphological characterization of these nanocomposites was performed using various microscopy techniques and it revealed tha...

A new lactose biosensor was developed by preparing a suitable copolymer of polypyrrole and poly(3,4-ethylenedioxythiophene) synthesized using the electropolymerization method. Pyrrole and 3,4-ethylenedioxythiophene monomers were deposited in the presence of sodium dodecylbenzene sulphonic acid on a platinum disc electrode, which was used as the wor...

The preparation of polyfuran–graphene (PFu/GR) and polyfuran–multi-walled carbon nanotube (PFu/MWCNT) nanocomposites was carried out via a plasma polymerization. The characterizations of the pure GR, MWCNTs and the nanocomposites coated with PFu were performed using Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and scan...

This study presents the preparation of graphene (GR) nanocomposites with polyaniline (PANI) and polypyrrole (PPy) through the fast, versatile and environmentally friendly process of radio frequency (RF)-plasma polymerization. Morphological characterization of the nanocomposites is performed using scanning electron microscopy (SEM) and shows that th...

Multi-walled carbon nanotube (MWCNT) was modified via plasma polymerization of aniline by applying different radio frequency (RF: 13.56 MHz) powers. The modified MWCNTs were investigated in terms of morphology, chemical structure and thermal behaviors, indicating the formation of composites based on the surface modification of MWCNT with polyanilin...

Poly(3,4-ethylenedioxxythiophene) (PEDOT), polyaniline (PANI) and polythiophene (PTh) based multi-walled carbon nanotube (MWCNT) composites were successfully prepared using RF-rotating plasma grafting method. Morphological characterizations of composites were determined using scanning electron microscopy (SEM), which showed that conducting polymers...

This study presents the modification of multi-walled carbon nanotube (MWCNT) with poly(3-hexylthiophene) (P3HT) and polypyrrole (PPy) through the fast, versatile, and environmentally friendly process of radiofrequency (RF)-rotating plasma polymerization. Morphological characterization of composites was performed using scanning electron microscopy (...

Lactose content of milk is a basic indicator for the evaluation of milk quality. Various methods are used for the determination of lactose; however, many of these methods are generally time-consuming, labor-intensive and expensive for routine quality control applications. Biosensors offer a cheap, quick, and reliable alternative for lactose determi...

Carbon nanotubes (CNT) is one of the most investigated materials before the invention of graphene. 1 Due to its unique properties, CNTs have been used in various applications include sensors, solar cells, transistors, etc. 2 However, it makes difficult to make nano-devices based on CNTs at a large scale. For this reason, formation of composite with...

Recently, electronically conductive polymers have been studied as the subject of numerous investigations [1-2]. Among the conductive polymers, which have aromatic ring and heteroatom in the backbone, polypyrrole (PPy) [3] have been of particular interest due to its high electrical conductivity, environmental stability and interesting redox properti...

A series of drug-incorporating electrospun biocompatible nanofibers were fabricated by using the electrospinning process. A hydrophobic drug (ibuprofen, IBU) was directly dissolved with biopolymer systems such as polyvinyl alcohol/plasma modified chitosan (PVA/PMCh), polyvinyl alcohol/chitosan (PVA/Ch) and cellulose acetate (CA) into an organic sol...

Lactose biosensor based on surfactant doped polypyrrole (PPy) was developed. Galactose oxidase and β-galactosidase was coimmobilized in PPy matrix during electropolymerization process with the presence of sodium dodecylbenzene sulphonic acid as surfactant. Bi-enzyme entrapped PPy was characterized with Fourier transform infrared spectroscopy (FTIR)...

Poly(2‐thiophene‐3‐yl‐malonic acid) (P3TMA) was synthesized electrochemically using tetrabutylammonium perchlorate (TBAClO4) as electrolyte into acetonitrile (ACN) for glucose biosensor application. The properties of P3TMA were investigated using FTIR, SEM, and electrochemical measurements. The glucose oxidase enzyme (GOD) was chemically immobilize...

Poly(3,4-ethylenedioxythiophene)/titanium dioxide (PEDOT/TiO2) nanocomposites and poly(3,4-ethylenedioxythiophene) (PEDOT) homopolymers were synthesized chemically in the presence of anionic (sodium dodecylsulfate, SDS) and cationic (tetradecyltrimethylammoniumbromide, TTAB) surfactants. The effect of surfactant on structural and morphological prop...