Yazar "Alver, Erol" için listeleme
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Ceviz kabuğu katkılı manyetik biyokompozit kürelerin üretilmesi ve sulu çözeltilerden katyonik boyanın uzaklaştırılmasında kullanılması
Macar, Levent (Hitit Üniversitesi, 2023)Dünyada kullanılabilir su kaynaklarının az olması nedeni ile suların verimli bir sekilde kullanımı büyük önem arz etmektedir. Bu nedenle birçok etken ile kirlenen suların tekrar kullanılabilir olması için farklı yöntemler ... -
Chemical composition of essential oils from Crocus ancyrensis (Herbert) Maw Spreading In Çorum (Türkiye) Region
Doğan, Hacer; Kayır, Ömer; Alver, Erol; Bilici, İbrahim (Pamukkale University, 2023)Abstract: Crocus ancyrensis is a yellow-flowered Crocus species and is in the same family and genus with saffron. Although various studies have been conducted on the antioxidant capacity and essential oil content ... -
Chitosan based metal-chelated copolymer nanoparticles: Laccase immobilization and phenol degradation studies
Alver, Erol; Metin, Ayşegül Ülkü (Elsevier Ltd, 2017)Immobilization improves the stability and reusability of enzymes. In this study, laccase, which is a green biocatalyst, was immobilized onto Cu (II)-chelated chitosan nanoparticles via adsorption and successfully applied ... -
Efficient removal of acidic dye using low-cost biocomposite beads
Metin, Ayşegül Ülkü; Çiftçi, Hakan; Alver, Erol (2013)The objective of this study is to prepare and characterize chitosan/zeolite biocomposite beads and utilize them as adsorbent for removal of anionic dye, Acid Black 194 (AB194). Characterization studies of biocomposite beads ... -
Electrochemical copper (II) sensor based on chitosan covered gold nanoparticles
Çiftçi, Hakan; Tamer, Uğur; Metin, Ayşegül Ülkü; Alver, Erol; Kizir, Nevin (Kluwer Academic Publishers, 2014)This study outlines a new sensing platform based on glassy carbon electrodes modified by gold nanoparticles (AuNPs) for the determination of heavy metal. A glassy carbon electrode was modified by chitosan stabilized AuNPs. ... -
Fabrication and characterization of gold-nanoparticles/chitosan film: A scaffold for L929-fibroblasts
The objective of the present study was to fabricate a gold nanoparticle crosslinked chitosan (Ch/AuNPs) composite film simple and to evaluate its use as a carrier matrix for L929- fibroblasts. L929- fibroblasts were seeded ... -
Fibrous polymer-grafted chitosan/clay composite beads as a carrier for immobilization of papain and its usability for mercury elimination
Metin, Ayşegül Ülkü; Alver, Erol (Springer Verlag, 2016)Papain, which is an industrially important enzyme, has been immobilized on fibrous polymer-modified composite beads, namely poly(methacrylic acid)-grafted chitosan/clay. Characterization studies have been done using FTIR ... -
INVESTIGATION THE PERFORMANCE OF CHITOSAN BASED COMPOSITE BEADS ON REMOVAL OF ANIONIC DYE (AY-204)
Alver, Erol; Metin, Aysegul Ulku; Ciftci, Hakan (Yildiz Technical Univ, 2015)The aim of this study is to investigate the utility of chitosan/zeolite composite beads as adsorbent for removal of anionic textile dye, Acid Yellow 204. It was investigated the influence of parameters such as pH, time, ... -
İyonotropik jelleşme yöntemi ile hazırlanan kitosan nanopartiküllerde hapsetme (enkapsülasyon) ile anyonik boyaların uzaklaştırılma ve hapsedilen boyanın nanopartikülde depolanma etkinliğinin araştırılması
Alver, Erol (Gümüşhane Üniversitesi, 2018)İyonotropik etkileşim ile kitosan nanopartiküller anyonik boya (Fast Green FCF) içeren çözelti ortamında hazırlandı. Boya hapsedilmiş kitosan nanopartiküller SEM ve Zeta-sizer ile karekterize edildi. Kitosan nanopartikül ... -
Methylene blue adsorption on magnetic alginate/rice husk bio-composite
Alver, Erol; Metin, Aysegul Ulku; Brouers, Francois (Elsevier, 2020)Magnetic alginate/rice husk (m-ALG/RH) bio-composite beads prepared with ionotropic gelation method and used for methylene blue (MB) removal. Structural analysis of magnetic alginate/rice husk composite beads was performed ... -
Non-enzymatic sensing of glucose using a glassy carbon electrode modified with gold nanoparticles coated with polyethyleneimine and 3-aminophenylboronic acid
Çiftçi, Hakan; Alver, Erol; Çelik, Filiz; Metin, Ayşegül Ülkü; Tamer, Uğur (Springer-Verlag Wien, 2016)A non-enzymatic electrochemical method was developed for sensing glucose by using a glassy carbon electrode modified with 3-aminophenylboronic acid (APBA) immobilized on polyethyleneimine (PEI)-coated gold nanoparticles. ... -
One step effective removal of Congo Red in chitosan nanoparticles by encapsulation
Alver, Erol; Bulut, Mehmet; Metin, Ayşegül Ülkü; Çiftçi, Hakan (Elsevier B.V., 2017)Chitosan nanoparticles (CNPs) were prepared with ionotropic gelation between chitosan and tripolyphosphate for the removal of Congo Red. The production of chitosan nanoparticles and the dye removal process was carried out ... -
Quantification of Phenolic Component by LC-HESI-MS/MS and Evaluation of Antioxidant Activities of Crocus Ancyrensis (Ankara cigdemi) Extracts Obtained with Different Solvents
Kayır, Ömer; Doğan, Hacer; Alver, Erol; Bilici, İbrahim (WILEY-V C H VERLAG GMBH, 2023)In this study, Crocus ancyrensis was extracted from different parts of the plants with various solvents and their antioxidant activities and phenolic contents were investigated in detail for the first time. The highest ... -
Synthesis and Characterization of Chitosan/Polyvinylpyrrolidone/Zeolite Composite by Solution Blending Method
Alver, Erol; Metin, Ayşegül Ülkü; Çiftçi, Hakan (Springer New York LLC, 2014)Polymer/clay composites have been studied for several decades; in the study, polymer/zeolite composite beads have been prepared by a simple solution blending method using chitosan, polyvinylpyrrolidone and zeolite particles ... -
Tarımsal atıklardan karbon temelli nanomalzemelerin ekonomik ve yeşil sentezi
Çavuş, Ömer (Hitit Üniversitesi, 2023)Günümüzde nanomateryallerin sentezinde yeşil kimya çevreci yaklaşımlardan dolayı ilgi görmektedir. Çalışmada, tarımsal atık olan pirinç kabuğu, ayçiçek sapı ve mısır koçanının yanısıra filtre kahve atığıdan biyo-grafen ...
