Browsing by ORCID "HASANOGLU OZKAN, Elvan/0000-0001-7338-4015"
Now showing items 1-14 of 14
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EFFICIENT DETERMINATION AND PESTICIDE CONTROL BY MEANS OF IMMOBILIZATION OF ACETYLCHOLINESTERASE
Özkan, Elvan Hasanoğlu; Yetim, Nurdan Kurnaz; Gümüş, Murat; Sarı, Nursen; Dişli, Ali (Soc Chemists Technologists Madeconia, 2017)Supports involving tetrazole (o/m/p-F-Tet-1H) were prepared to detect pesticides. This novel tetrazole including fluorine in different positions was attached to nanoparticles (2AEPS-(o/m/p-F-Tet-1H)) by a condensation ... -
Ensuring traceability of organophosphate pesticides (OPs) through enzyme immobilized spheres
Hasanoğlu Özkan, Elvan; Kurnaz Yetim, Nurdan; Nartop, Dilek; Sarı, Nurşen (Springer, 2021)Currently, pesticide residues increasingly lead to health problems. Acetylcholinesterase enzyme (AChE) plays a role in detoxification processes due to their ability to scavenge organophosphates. Thus, this enzyme has been ... -
Enzyme immobilization on polymeric microspheres containing Schiff base for detection of organophosphate and carbamate insecticides
Nartop, Dilek; Yetim, Nurdan Kurnaz; Özkan, Elvan Hasanoğlu; Sarı, Nursen (Elsevier, 2020)In this study, polymeric microsphere including Schiff base TrisPS-pyr and TrisPS-pyr-Pt(II) were obtained by condensation reaction for improve the enzymatic properties of acetylcholinesterase (AChE) and detect harmful ... -
Fe3O4 nanoparticle decorated novel magnetic metal oxide microcomposites for the catalytic degradation of 4-nitrophenol for wastewater cleaning applications
Özkan, Elven Hasanoğlu; Aslan, Naim; Koç, Mümin Mehmet; Yetim, Nurdan Kurnaz; Sarı, Nursen (Springer, 2021)Co3O4, NiO and ZnO microparticles were decorated with Fe3O4 nanoparticles where novel Co3O4@Fe3O4, NiO@Fe3O4 and ZnO@Fe3O4 microcomposites were obtained with significant magnetic properties. Decorating microparticles with ... -
Immobilization of acetylcholinesterase on Pt(II) and Pt(IV) attached nanoparticles for the determination of pesticides
Özkan, E. Hasanoğlu; Yetim, N. Kurnaz; Tümtürk, H.; Sarı, N. (Royal Soc Chemistry, 2015)Pt(II) and Pt(IV)-tagged nanoparticles have been synthesized according to the template method for the identification of pesticides. Their morphologies have been investigated using scanning electron microscopy and characterized ... -
Immobilization of GOx on Trp / Trp-Fc Functionalized Nanospheres: Improved of Reusability and Stability
Yetim, Nurdan Kurnaz; Özkan, Elvan H.; Sarı, Nursen (Gazi Univ, 2017)In the study, new nanospheres support containing ferrocene were synthesized and characterized, then the properties of nanospheres as biocatalysis were researched. Novel support was prepared from (Aminomethyl) polystyrene ... -
Influence of load on the recycling stability of nanospheres attached platinium ion for determination of glucose
Özkan, Elvan Hasanoğlu; Yetim, Nurdan Kurnaz; Nartop, Dilek; Sarı, Nursen (Elsevier Science Inc, 2015)New nanospheres have been prepared with Pt2+ and Pt4+ for compare enzymatic properties of glucose oxidase enzyme (GOx). In this study nanoparticles, (aminomethyl)polystyrene (APS), 2-hydroxy-5-methylbenzaldehyde and ... -
Nanospheres caped Pt(II) and Pt (IV): synthesis and evaluation as antimicrobial and Antifungal Agent
Öğütçü, Hatice; Yetim, Nurdan K.; Özkan, Elvan H.; Eren, Orçun; Kaya, Gamze; Sarı, Nursen; Dişli, Ali (De Gruyter Open Ltd, 2017)Antimicrobial and antifungal polymers are gaining the attention of pharmaceutical makers and industrial design. Nanospheres-Polymers attached Platinum(II) / (IV) complexes have been synthesized to investigate antimicrobial ... -
New Nanospheres to Use in the Determination of Imidan Phosmet and Vantex Pesticides
Karmaz, Emre; Özkan, Elvan Hasanoğlu; Yetim, Nurdan Kurnaz; Sarı, Nursen Barutcuoğlu (Springer, 2021)In this study, the usability of AChE immobilized nanospheres (NSs) was investigated to identify Imidan Phosmet and Vantex pesticides. Accordingly, (2AEPS-SalBr) coded nanosphere was synthesized in result of condensation ... -
Novel polymeric microspheres: Synthesis, enzyme immobilization, antimutagenic activity, and antimicrobial evaluation against pathogenic microorganisms
Nartop, Dilek; Demirel, Birtane; Güleç, Murat; Özkan, Elvan Hasanoğlu; Yetim, Nurdan Kurnaz; Sarı, Nursen; Ağar, Güleray (Wiley, 2020)New polymeric microspheres containing azomethine (1a-1c and 2a-2c) were synthesized by condensation to compare the enzymatic properties of the enzyme glucose oxidase (GOx) and to investigate antimutagenic and antimicrobial ... -
Preparation of AChE immobilized microspheres containing thiophene and furan for the determination of pesticides by the HPLC-DAD method
Yetim, Nurdan Kurnaz; Özkan, Elvan Hasanoğlu; Özcan, Cemile; Sarı, Nursen (Elsevier, 2020)In this study, acetylcholinesterase (AChE) enzyme immobilized polymeric microspheres were prepared to detect the dichlorvos (DDVP: 2,2-dichlorovinyl dimethyl phosphate) and the chlorpyrifos (O, O-Diethyl 0-3,5,6-trichlor ... -
Qualitative enzymatic detection of organophosphate and carbamate insecticides
Nartop, Dilek; Hasanoğlu Özkan, Elvan; Yetim, Nurdan Kurnaz; Sarı, Nursen (Taylor & Francis Inc, 2020)In this study, new polymers containing amides (TrisPS-Ntaa, andTrisPS-Ntaa-Fc) were synthesized by condensation reaction for qualitative identification of insecticides. The synthesized polymers, including amides were ... -
Research on the Repeated Use of Novel Ferrocene-Tagged Nanomaterial for Determination of Glucose
Yetim, Nurdan Kurnaz; Özkan, Elvan Hasanoğlu; Danis, Busra; Tümtürk, Hayrettin; Sarı, Nursen (Taylor & Francis As, 2015)A good novel double ferrocene-tagged nanomaterial is designed for glucose determination and its recycling stability. Double Ferrocene-tagged nanomaterial displays higher catalytic activity toward the glucose oxidation than ... -
Synthesis of Au-doped magnetic nanocomposites: structural, magnetic, and catalytic properties
Kurnaz Yetim, Nurdan; Hasanoğlu Özkan, Elvan (Springer, 2021)In this work, Fe3O4 magnetic nanoparticles (MNPs) were produced using the co-precipitation method. The surface of the produced MNPs was covered with TEOS and APTES as a shell and the APTES shell is doped with Au nanoparticles ...
