Yazar "MÜ, Fen Fakültesi, Kimya Bölümü" için PubMed İndeksli Yayınlar Koleksiyonu listeleme
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Evaluation of the efficacy in cosmetic products safety: Comparison with biochemical substrates
Demir, Yaşar; Uçkaya, Meryem; Demir, Nazan (Academic Press Inc Elsevier Science, 2019)Chemicals used in cosmetics must interact with the enzymes for their consumption after entering our bodies. The area at which the interaction realizes on the enzyme is known as the active center. This center is three ... -
Examination of performance of glassy carbon paste electrode modified with gold nanoparticle and xanthine oxidase for xanthine and hypoxanthine detection
Çubukçu, Meliha; Timur, Suna; Anık, Ülkü (Elsevier, 2007)A composite electrode was prepared by modifying glassy carbon microparticles with gold nanoparticles (Au-nps) and xanthine oxidase enzyme (XOD) for xanthine (X) and hypoxanthine (Hx) detection. After the optimization of ... -
Fabrication of Electrochemical Model Influenza A Virus Biosensor Based on the Measurements of Neuroaminidase Enzyme Activity
Anık, Ülkü; Tepeli, Yudum; Diouani, Mohamed F. (Amer Chemical Soc, 2016)Neuroaminidase (NA) enzyme is a kind of glycoprotein that is found on the influenza A virus. During infection, NA is important for the release of influenza virions from the host cell surface together with viral aggregates. ... -
GC-MS Analysis and Antimicrobial Activity of Essential Oil of Stachys cretica subsp smyrnaea
Öztürk, Mehmet; Duru, Mehmet Emin; Aydoğmuş-Öztürk, Fatma; Harmandar, Mansur; Mahlıçlı, Melda; Kolak, Ufuk; Ulubelen, Ayhan (Natural Products Inc, 2009)The essential oil from the aerial parts of Stachys cretica L. subsp. smyrnaea Rech. fil. (Lamiaceae), endemic to Turkey, was investigated by using GC and GC-MS. Thirty-four of 37 components, represented 99.7% of the total ... -
GC-MS Analysis of the Antioxidant Active Fractions of Micromeria juliana with Anticholinesterase Activity
Öztürk, Mehmet; Kolak, Ufuk; Duru, Mehmet Emin; Harmandar, Mansur (Natural Products Inc, 2009)The aerial parts of Micromeria juliana (L.) Bentham ex Reichb. were extracted with light petroleum, acetone and methanol, successively. The antioxidant activity of different concentrations of the extracts was evaluated ... -
Green synthesis of multifunctional carbon coated copper oxide nanosheets and their photocatalytic and antibacterial activities
Bibi, Hamida; Iqbal, Mudassar; Wahab, Hassan; Öztürk, Mehmet (Nature Publising Group, 2021)The studies of metal oxides in environmental remediation of chemical and biological pollutants are gaining colossal importance. Herein, we report the facile synthesis of multifunctional copper oxide nanosheets (CuO NS) ... -
Hepatoprotective activity of viscosine is mediated by attenuation of hepatic macrophages and iNOS expression in CCl4-intoxicated rats
Ali, Hamid; Kabir, Nurul; Shah, Muhammad Raza; Muhammad, Akhtar; Ali, Safdar; Mehmood, Shahab; Jahan, Azra (Oxford Univ Press, 2016)This study investigated the molecular mechanism(s) of the protective effects of a C-alkylated flavonoid, viscosine on an animal model of CCl4-induced hepatotoxicity. Viscosine at 20, 50 and 100 mg kg(-1) was orally ... -
Identification and characterization of a glycosaminoglycan recognition element of the C chemokine lymphotactin
Peterson, Francis C.; Elgin, Emine Sonay; Nelson, Timothy J.; Zhang, Fuming; Hoeger, Theresa J.; Linhardt, Robert J.; Volkman, Brian F. (Amer Soc Biochemistry Molecular Biology Inc, 2004)Chemokine-mediated recruitment of leukocytes in vivo depends on interactions with cell surface glycosaminoglycans. Lymphotactin, the unique member of the "C" chemokine subclass, is a highly basic protein that binds heparin, ... -
Identification and crop damage assessment of indian crested porcupine (Hystrix indica) in selected zones of Abbottabad, Pakistan
Ehtisham; Akhtar, A.; Khan, K. A.; Mudassar, Iqbal (SciElo, 2021)Indian crested porcupine is the largest rodent pest that damages a wide variety of crops, vegetables, and tree species which ultimately causes huge economic loss in Pakistan, which is an agricultural country. It prefers ... -
Immobilization of pancreatic lipase on chitin and chitosan
Kılınç, Ali; Teke, Mustafa; Önal, Seçil; Telefoncu, Azmi (Taylor & Francis Inc, 2006)In this study, porcine pancreatic lipase (EC 3.1.1.3) was immobilized on chitin and chitosan by adsorption and subsequent crosslinking with glutaraldehyde, which was added before (conjugation) or after (crosslinking) washing ... -
Immobilization of Purified Pectin Lyase from Pseudomonas putida onto Magnetic Lily Flowers (Lilium candidum L.) Nanoparticles and Applicability in Industrial Processes
Taşgın, Esen; Nadaroğlu, Hayrunnisa; Babagil, Aynur; Demir, Nazan (Mdpi, 2020)Pectinases are an important class of enzymes distributed in many higher plants and microorganisms. One of these enzymes is pectin lyase which has an important role in industrial applications such as clarification of fruit ... -
An impedimetric approach for COVID-19 detection
Tepeli Büyüksünetçi, Yudum; Çitil, Burak Ekrem; Anık, Ülkü (ROYAL SOC CHEMISTRY, 2021)In this study, an electrochemical approach for the determination of coronavirus disease (COVID-19) was developed. The biosensor system relied on the spike protein (S-protein) based infection mechanism of the virus and ... -
In vitro antioxidant, anticholinesterase and antimicrobial activity studies on three Agaricus species with fatty acid compositions and iron contents: A comparative study on the three most edible mushrooms
Öztürk, Mehmet; Duru, Mehmet Emin; Kıvrak, Şeyda; Mercan-Doğan, Nazime; Turkoğlu, Aziz; Özler, Mehmet Ali (Pergamon-Elsevier Science Ltd, 2011)The fatty acids of Agaricus essettei, Agaricus bitorquis and Agaricus bisporus were investigated by using GC and GC-MS. The dominant fatty acids were found to be linoleic (61.82-67.29%) and palmitic (12.67-14.71%) acids ... -
Interconversion between two unrelated protein folds in the lymphotactin native state
Tuinstra, Robbyn L.; Peterson, Francis C.; Kutlesa, Snjezana; Sonay Elgin, Emine; Kron, Michael A.; Volkman, Brian F. (Natl Acad Sciences, 2008)Proteins often have multiple functional states, which might not always be accommodated by a single fold. Lymphotactin (Ltn) adopts two distinct structures in equilibrium, one corresponding to the canonical chemokine fold ... -
Isolation and characterization of antioxidant phenolic compounds from the aerial parts of Hypericum hyssopifolium L. by activity-guided fractionation
Çakır, Ahmet; Mavi, A.; Yıldırım, A.; Duru, Mehmet Emin; Harmandar, H.; Kazaz, C. (Elsevier Sci Ireland Ltd, 2003)Dried methanol extract of Hypericum hyssopifolium subsp. elongatum var. elongatum was dissolved in distilled water, and then fractioned by re-extracting with petroleum ether, chloroform, and ethyl acetate, subsequently. ... -
Metal complexes and solvent extraction properties of isonitrosoacetophenone 2-aminobenzoylhydrazone
Güp, Ramazan; Giziroğlu, Emrah (Pergamon-Elsevier Science Ltd, 2006)Three types of copper complexes as well as an oximate-bridged nickel complex with isonitrosoacetophenone 2-aminobenzoylhydrazone (H2L) have been prepared in ethanolic solution and characterized by elemental analyses, IR, ... -
Microplastic pollution at the intersection of the Aegean and Mediterranean Seas: A study of the Datca Peninsula (Turkey)
Yabanlı, Murat; Yozukmaz, Aykut; Şener, İdris; Ölmez, Özge Tokul (Pergamon-Elsevier Science Ltd, 2019)This study aims to reveal microplastic pollution. It is the first to be conducted in the South Aegean Region and one of the limited numbers of such studies in Turkey. To this aim, in September 2018 microplastic particles ... -
Minerals and metals in mushroom species in Anatolia
Tel, Gülsen; Çavdar, Hamide; Deveci, Ebru; Öztürk, Mehmet; Duru, Mehmet E.; Türkoğlu, Aziz (Taylor & Francis Ltd, 2014)Mineral and metal contents of 24 wild mushroom species collected from Anatolia were analysed by inductively coupled plasma optical emission spectrometry. Eight minerals (Na, Mg, Ca, Mn, Fe, Zn, P and K) and six metals (Cr, ... -
Novel fluorine-containing chiral hydrazide-hydrazones: Design, synthesis, structural elucidation, antioxidant and anticholinesterase activity, and in silico studies
Sıcak, Yusuf; Oruç-Emre, Emine Elçin; Öztürk, Mehmet; Taskın-Tok, Tuğba; Karaküçük-İyidoğan, Ayşegül (Wiley, 2019)In this study, a series of fluorine-containing chiral hydrazide-hydrazone derivatives [III-XII] from x29f; -cysteine ethyl ester hydrochloride was synthesized as new antioxidant and anticholinesterase agents. The antioxidant ... -
A novel Salvialactomine from the callus culture of Salvia santolinifolia Boiss
Jan, Tour; Qadri, Raiha; Naqvi, Beena; Adhikari, Achyut; Nadeem, Said; Muhammad, Akhtar (Taylor & Francis Ltd, 2018)A novel compound Salvialactomine (1) along with two other unusual occurring natural products Pentatriacontanoic acid 1, 3-dihydroxypropyl ester (2) and 5-Methylflavone (3) were isolated from the callus of Salvia santolinifolia ...