Neslihan Nohut Maşlakcı

T.C. Isparta Uygulamalı Bilimler Üniversitesi

Electrospun fibers of 7-methyl-4-phenyl-8-(4’-methoxy)phenylazopyrazolo[5,1-c][1,2,4]triazine-3-carboxylic acid ethyl ester (PCA-4) and 7-methyl-4-phenyl-8-(2’-methoxy)phenylazopyrazolo[5,1-c][1,2,4]triazine-3-carboxylic acid ethyl ester (PCA-2) were produced using electrospinning technique. Poly(methylmethacrylate) (PMMA) was used as support elect...

The aim of this study is to fabricate streptomycin sulfate (STM)-loaded bis-chalcone/poly(methyl methacrylate) (PMMA)/poly(ethylene oxide) (PEO) based fiber mats for drug delivery and antibacterial applications. This study presents the synergetic effect of a bis-chalcone derivatives ((2E,6E)‐2,6–bis[(thiophen‐2–yl)methylene]cyclohexanone (BTC) or (...

The objective of the present study is to evaluate the pH‐dependent drug release from polyvinylpyrrolidone (PVP)/polyacrylonitrile (PAN)/graphene (Gr) (P1) fibers using a quartz crystal microbalance (QCM). Electrospun fibers for poorly water‐soluble drugs were prepared on the QCM electrode surface through the electrospinning with P1 as the fiber‐for...

The electrochemical behavior of (2E,5E)-2,5-dibenzylidenecyclopentanone (P1) and (2E,5E)-2,5-bis(4-nitrobenzyli-dene)cyclopentanone (P2) known as bis-chalcone derivatives was studied by cyclic voltammetry (CV) using an indium tin oxide (ITO) as the working electrode. Repeated cyclic voltammograms measurements exhibited excellent long-term redox sta...

In this work, the electrochromic (EC) application of the hybrid fibers based on bis‐thiomethylcyclohexanone derivatives is evaluated. For this purpose, two new bis‐thiomethylcyclohexanone derivatives, 2,6‐bis(phenyl(phenylthio)methyl)cyclohexanone (PPTMC) and 2,6‐bis((2,6‐dichlorophenyl)(phenylthio)methyl)cyclohexanone (CPPTMC), were synthesized by...

In this work, the electrochromic (EC) application of the hybrid fibers based on bisthiomethylcyclohexanone derivatives is evaluated. For this purpose, two new bisthiomethylcyclohexanone derivatives, 2,6-bis(phenyl(phenylthio)methyl)cyclohexanone (PPTMC) and 2,6-bis((2,6-dichlorophenyl)(phenylthio)methyl)cyclohexanone (CPPTMC), were synthesized by t...

In this study, nonthermal atmospheric pressure plasma (NTAPP) method was performed for the sterilization of natural rose water which has a great potential as drug and food additive. NTAPP is applied to rose water containing mesophilic aerobic bacteria, mold and yeast. Experiments were carried out at a voltage of 500 V, a rotating speed of 500 rpm a...

This study reports that quartz crystal microbalance (QCM) is used to determine the effect of chitosan derivatives obtained by chemical method on biofilm inhibition. Plasma grafted chitosan (pchito) was modified chemically with both 5-methyl-4-phenyl-thiophene-3-carboxylic acid (MFTKA) and 4-(thiophene-2-sulfonylamino)-benzoic acid (TSABA). The quar...

Two bis-chalcone derivatives, (2E,6E)-2,6-bis[(thiophen-2-yl)methylene]cyclohexanone (C1) and (2E,6E)-2,6-bis[(furan-2-yl)methylene]cyclohexanone (C2)-based electrochromic (EC) nanofibers were produced in the presence of poly(methyl methacrylate) (PMMA) as supporting polymer using the electrospinning technique. The scanning electron microscopy (SEM...

The aim of this work is to investigate the suitability of electrospinning for biomedical applications and to produce fast-dissolving drug delivery through uniform dextran nanofiber nonwoven maps. To prepare oral fast-dissolving drug delivery nonwoven maps via electrospinning technology, ibuprofen (Ibu) and acetylsalicylic acid (ASA) as the model dr...

We report the first successful applications of tungsten oxide/conducting polymer hybrid nanofiber assemblies in electrochromic devices. Poly(3,4-ethylenedioxythiophene)/tungsten oxide (PEDOT/WO3) and polypyrrole/tungsten oxide (PPy/WO3) composites were prepared by an in situ chemical oxidative polymerization of monomers in different ionic liquids;...

A quartz crystal microbalance DNA biosensor based on plasma prepared polythiophene /titanium dioxide (PT/TiO2) nanocomposite was developed for the detection of genetically modified organisms (GMOs). DNA hybridization was studied by quartz crystal microbalance (QCM) and cyclic voltammetry (CV) measurements. Single stranded DNA probes were immobilize...

This study focuses on the electrochromic device (ECD) applications of poly(3,4-ethylenedioxythiophene)/tungsten oxide (PEDOT/WO3) hybrid nanofibers prepared via electrospinning method. Nanoporous WO3 films were initially electrosynthesized on Pt sheet. The PEDOT layer was electropolymerized onto the entire surface of the WO3 nanoporous host framewo...

Poly(3,4-ethylenedioxythiophene)/tungsten (PEDOT/W) composites were prepared by an in situ chemical oxidative polymerization of 3,4-ethylenedioxythiophene in different ionic liquids; 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4), 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6), 1-butyl- 3-methylimidazolium bis(trifluoromethylsul...

Two ferrocenyl-substituted N-acetyl-2-pyrazolines, N-acetyl-3-(2-furyl)-5-ferrocenyl-2-pyrazoline (Fc-1) and N-acetyl-3-(2-thienyl)-5-ferrocenyl-2-pyrazoline (Fc-2) electrospun fibers, were produced in the presence of plasma-modified chitosan (PMCh)/poly(ethylene terephthalate) (PET) supporting polymers with an electrospinning method. The morpholog...

Using a natural dye (anthocyanin), extracted from a wasted rose residue and characterized by FTIR and UV-visible spectroscopy, a dyesensitized solar cell (DSC) was fabricated and the current-voltage (I-V) characteristics of the solar cell were studied. The best photovoltaic parameters like short-circuit photocurrent (Isc), open-circuit voltage (Voc...

Polyaniline-wool (PAN-WF), poly(3,4-ethylenedioxythiophene)-wool (PEDOT-WF), polypyrrole-wool (PPy-WF) fabrics were successfully prepared via atmospheric pressure plasma process. Scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS), Fourier Transform Infrared Spectroscopy (FTIR) and four-probe resistance measurements were use...

Chitosan was modified chemically with N-(5-(4-methoxy-phenyl)-furan-2-ylmethylene)-N'-phenyl-hydrazine (NMPF). The nanofibers of chitosan were obtained by in situ electrospinning and quartz crystal microbalance (QCM) methods. The structure of the modified chitosan was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelect...

A poly(vinylferrocene) (PVFc)/cellulose acetate (CA) fibers were obtained using an electrospinning method. The electrospinning process was controlled in situ with a quartz crystal microbalance (QCM) system. Fiber formation was observed through adjusting PVFc concentration. Morphological characteristics depending on the changes of atomic % ratio val...

This work reports the fabrication and characterization of polyacrylonitril (PAN) nanofibers by electrospinning and further development of the as-spun PAN nanofibers into carbon nanofibers by using plasma help carbonization process. PAN nanofibers as a precursor of carbon nanofibers were prepared by electrospinning of PAN/DMF solution. The aligned e...

Unlike conventional fiber spinning techniques (wet spinning, dry spinning, melt spinning, gel spinning), electrospinning has been recognized as simple effective and an efficient technique for the fabrication of polymer nanofibers and nanofiber non-wowen mats 1,2 . Moreover, this technique can provide possibility to control over the resultant morpho...

Many great investigations and new techniques focused on the study of textile to improve textile surface properties such as wetting, antistatic, electrical conduction, penetration, and so on 1,2 . The static charge is a critical factor and an important limitation for many applications such as garments in direct contact with human skin 3,4 . Both low...

Chitosan is a biocompatible aminopolysaccharide, N-deacetylated biopolymer of chitin that is the second abundant natural polymers on the earth 1,2 . Because of its favorable physicochemical and biological properties such as its being biocompatible, low toxicity, ecological safety and biodegradable, chitosan is considered as an attractive material t...

A series of plasma modified chitosan/N-acetyl-2-pyrazoline derivative fibers (PMCh/NAP) were obtained by using an electrospinning method. The result compounds were synthesized from chalcones which obtained by Claisen-Schmidt condensation of ferrocenecarboxaldehyde with hetaryl methyl ketones 1 . The synthesized chalcone derivatives were then treate...

Polyfuran (PFu) films were electrochemically deposited onto gold electro-quartz crystal microbalance (EQCM) electrodes using acetonitrile (ACN)/LiClO4 solvent-electrolyte in presence of dodecylbenzenesulfonic acid (anionic, DBSA) and polyethylene glycol sorbitan monolaurate (non-ionic, Tween 20) surfactants. The effect of surfactants on structural...

Titanium as doping material in spraying solution has been reported to enhance properties of electrochromic devices based on vanadium oxide. In this contribution, titanium tetrachloride plasma has been used for treatment of vanadium oxide powder. The treatments have been performed in a glass rotating reactor using ferrofluidic feedthroughs operated...

Functional nanoparticles are required for various applications including biotechnology, analytics, nanocomposites, etc. In this contribution, a rotating reactor has been used for treatment of tungsten oxide nanopowder under titanium tetrachloride plasma environments. The reactor volume is 1 L and consist of a Pyrex glass tube. Copper electrodes out...