Ferhat Bozduman

Karabuk University · Faculty of Medicine

https://www.seruvenyayinevi.com/Webkontrol/uploads/Fck/saglikaralik2022.pdf

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Silicosis disease inevitably continues in people who do denim bleaching with the silica method. Silica powder is used in the classical denim bleaching method. Inhalation of silica as a fine dust can cause one of the most common occupational diseases, silicosis, recently seen in the textile industry among workers using sandblasting to introduce “age...

Molybdenum disulphide (MoS 2) nanotube and tungsten oxide (W 18 O 49) nanowire were coated with poly(3-hexylthiophene) (P3HT) and poly(3,4-ethylenedioxythiophene) (PEDOT) by a radio frequency (RF: 13.56 MHz)-rotating plasma-modification method as alternative counter electrodes for dye-sensitised solar cells (DSSCs). Surface analysis showed the homo...

Purpose The purpose of this paper was to investigate the effects of hydrochloric acid (HCl), hydrazine, methyl methacrylate, styrene and hexamethyldisiloxane by radio-frequency (rf) plasma graftings on surface properties of wool and denim fabrics. Design/methodology/approach During plasma treatments, processing time was varied under optimized plas...

Operating at ambient pressure allows industry (such as textile industry) to move from batch to continuous processing and also facilitates much simpler equipment designs with reduced maintenance requirements due to the lack of vacuum pumps, seals, etc [1]. Recent advances in this technology have included the development plasma techniques which makes...

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...

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...

As a non-chemical method for inactivation of microorganisms in water, plasma treatment is a promising because of active plasma species production ability of plasma discharge. There are different type of plasma sources for water treatment and one of them is ‘needle to plate’ configuration which was set up in our work. Water contaminated by Escherich...

The need for sensitive, selective, rapid and low-cost detection systems for proteins are in crucial demand for diagnostics and real-world applications. Graphene has been an very important nanomaterial for biosensing applications. This study details the preparation of radio frequency (RF)-titanium dioxide (TiO 2 ) plasma modified graphene coated dis...

Graphene-based nanomaterials have drawn considerable interest due to their unique physicochemical, thermal and mechanical properties including large specific surface area, excellent electrocatalytic activity, good electrical conductivity, high mobility of charge carriers and unique transport performance. Graphene has been a great potential for vari...

Graphene is the one-dimensional form of carbon and exhibits a considerable number of new and sometimes mysterious optical and electronic effects that have not been observed in other materials, such as zero-band-gap semi-conductivity with a high carrier mobility, high optical transparency and high tensile strength. Due to these properties, graphene...

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...

A rational strategy for fabricating PEDOT-S/PVA (poly(4-(2,3-dihydrothieno [3,4-b] [1,4] — dioxin-2-yl-methoxy)-1-butanesulfonic acid/polyvinyl alcohol) nanofibers by in situ-plasma deposition was developed. The key process was electrospinning of EDOT-S/PVA and further its modification by oxygen plasma in a radio frequency (RF) plasma treatment cha...

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...

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...

By injecting ethanol molecules into the argon plasma environment graphene sheets can be produced [1]. From this motivation the atmospheric pressure 2.45 GHz microwave plasma source was built. The argon and helium discharges with ethanol were obtained in a quartz tube which placed in a rectangular cavity. The discharge environment will be analyzed b...

Cleaning process applied to microorganisms on any substance is called as sterilization. This process can be applied with different methods such as chemical (EtO), filtration (gases, liquids), temperature sterilizations etc. However, these methods have some drawbacks. Plasma sterilization is one of the rapidly developing technique in the study of di...

Lower energy efficiency and higher cost are main challenges of current photovoltaics (PVs) and limit their using in widespread area. Nanostructure hybrid PVs that combined organic and inorganic nanoparticles, showed excellent performance with the intent of incorporating the advantages nano-scale materials 1,2 .

This study is investigating the direct growth of graphene on a membrane filter and a copper surface by injecting ethanol vapor into an inductively coupled plasma (ICP) at atmospheric pressure. Low temperature (<1000) graphene production is possible by an ICP plasma [1]. The discharge chemical mechanism will be analyzed by optical emission spectrum....

PECVD method is attractive for SWCNTsyntheis due to the better control and it is providing appropriate environment for decomposition of carbon feed-stocks at a lower temperature (<800) [1]. To produce graphene sheets on a copper surface the rf plasma source was built by using a quartz tube. The quartz tube was surrounded by a furnace for temperatur...

Biomedical Ti-13Nb-13Zr titanium alloy (ASTM F1713) subjected to hydrostatic extrusion (HE) process to obtain enhanced mechanical properties and change its specific surface energy by increasing amount of grain boundaries via grain refinement 1 . Thus, it is expected to have difference in coating and corrosion properties when compared to their as-re...

A waveguide-based microwave plasma system was built using a resonant cavity and a quartz tube. 2.45 GHz 850 W magnetron was used to obtain helium discharge without an igniter. The temporal images of discharge were recorded on microsecond time scales using an intensified charge-coupled device camera. The excitation temperature was calculated as 3385...

PEDOT films were deposited by microwave (MW) and radio frequency (RF) plasma in a medium pressure of 0.02 Torr without precursor. In-situ optical emission spectroscopy (OES) measurement was carried out to determine plasma phase and to adjust discharge parameters. The other spectroscopic methods were used to characterize deposited thin films and to...

Electrochromic (EC) properties of tungsten trioxide (WO3) was improved with preparing hybrids of tungsten trioxide-titanium dioxide (WO3–TiO2) and tungsten trioxide-poly(3,4 ethylenedioxythiophene) (WO3–PEDOT) by a rotating capacitively coupled radio-frequency (RF: 13.56 MHz) plasma reactor. Energy-dispersive x-ray spectroscopy mapping results indi...

Electron beam and radio frequency (RF: 13.56 MHz) magnetron sputtering methods were used to obtain a highly transparent and conductive indium tin oxide (ITO) films. The coated thin films were treated by RF-H2O plasma in order to improve optical and electrical properties. RF-H2O plasma characteristics were investigated by optical emission spectrosco...

The paper presents the results of the research on a new polymer-membrane and gel electrolytes for electrochromic devices. A complementary solid-state electrochromic device consisting of cathodically coloring working electrode of WO3 and anodically coloring counter electrode of NiO films is prepared to compare the effects of gel or membrane forms of...

PEDOT (poly-3,4-ethylene dioxythiophene) is one of the most attractive polythiophene derivatives and has been studied intensively for last decades in many research areas as conductive polymer [1]. In this study, PEDOT was used to modify natural chitosan biopolymer using RF EDOT plasma produced at low pressure (0.02 Torr) with 13.56 MHz frequency at...

In this study, corona plasma discharge was applied to desize polyvinyl alcohol (PVA) and starch on cotton fabrics. Plasma treated and non-treated samples were processed in various steps in a textile firm. The samples were tested to evaluate their weight loss, size dissolution, capillarity, dyeability, pilling resistance and strength values. The sur...

In this study, corona plasma discharge was applied to desize polyvinyl alcohol (PVA) and starch on cotton fabrics. Plasma treated and non-treated samples were processed in various steps in a textile firm. The samples were tested to evaluate their weight loss, size dissolution, capillarity, dyeability, pilling resistance and strength values. The sur...

The paper presents the results of the research on a new polymer-membrane and gel electrolytes for electrochromic devices. A complementary solid-state electrochromic device consisting of cathodically coloring working electrode of WO3 and anodically coloring counter electrode of NiO films is prepared to compare the effects of gel or membrane forms of...

This study aimed to compare the antimicrobial efficacy of low-temperature atmospheric pressure plasma (LTAPP) design and gaseous ozone delivery system with 2·5% NaOCl on Enterococcus faecalis in root canal walls and dentine tubules. The samples were divided into LTAPP (n = 12), ozone (n = 12), NaOCl (positive control, n = 12) and saline (negative c...

Optical and electrical characteristics of sprayed polytetrafluoroethylene (PTFE) by Argon plasma and also hexafluoropropene (C3F6) plasma were measured for different plasma parameters (treatment time, type of gas, power, pressure, electrode distance). The coated thin film onto AISI 1050 stainless steel characteristics were also investigated. After...

In this work atmospheric pressure plasma discharge was immersed in a hollow box which is called as manetohydrodynamic generator (MHDG). This box consists of two conductors and two insulating edges. Permanent magnets were placed on the insulating edges for a magnetic field which is perpendicular to the discharge flow. Hall-effect voltage was observe...

Atmospheric pressure microwave (2.45 GHz) plasma torch has been designed and built. The plasma optical and electrical characteristic have been investigated. The data has been compared with the kHz frequency rf torch. Electron temperature, density and gas temperatures are measured for different flow rates and for different gases. Optical emission sp...

In this study, on surface of heat treated AISI 1050 stainless steel was coated in RF vacuum plasma system with different plasma parameters (treatment time, type of gas, power, pressure, electrode distance). First stainless steel surfaces were coated by plasma grafting of sprayed polytetrafluoroethylene (PTFE) using by Argon and Helyum plasma. In th...

form only given. Atmospheric pressure microwave (2.45 GHz) plasma torch using WR- 284 type waveguide has been designed and the efficiency and uniformity of the plasma have been increased with a different kind of torch design. The traditional and modified torch plasma characteristics are compered.

In this study coherence effects are considered. The theoretical model is presented together with the experimental evidence. It is observed that the coherence effects are responsible for the pulse-shortening phenomenon observed in most high power microwave (HPM) systems. If the interaction of electromagnetic (radiation) wave with electron beams and...

form only given. Wastewater can be sterilized by plasma methods without chemicals. In this study, the wastewater refined by physical methods was sterilized by the corona discharge technique. Erwina carotovora bacterium aqueous solution was placed in glass tube with two electrodes. Atmospheric pressure air plasma with 2 kV voltages was applied to aq...

form only given. An home made atmospheric pressure microwave plasma torch has been built. The plasma discharge has been generated at 2.45 GHz frequency for different powers with argon and helium gases for the different flow rates. Optical emission spectrum of microwave excited discharge will be provided. Besides that time and special evolution of t...