Güncel Gönderiler: PubMed İndeksli Yayın Koleksiyonu
Toplam kayıt 1580, listelenen: 981-1000
-
Detection of Parathyroid Hormone Using an Electrochemical Impedance Biosensor Based on PAMAM Dendrimers
(Wiley, 2015)This paper presents a novel hormone-based impedimetric biosensor to determine parathyroid hormone (PTH) level in serum for diagnosis and monitoring treatment of hyperparathyroidism, hypoparathyroidism and thyroid cancer. ... -
Amperometric uric acid biosensor based on poly(vinylferrocene)-gelatin-carboxylated multiwalled carbon nanotube modified glassy carbon electrode
(Elsevier Science Bv, 2015)In this study, a new uric acid biosensor was constructed based on ferrocene containing polymer poly (vinylferrocene) (PVF), carboxylated multiwalled carbon nanotubes (c-MWCNT) and gelatin (GEL) modified glassy carbon ... -
A new methodology for the determination of enzyme activity based on carbon nanotubes and glucose oxidase
(Elsevier, 2015)In this research, a novel enzyme activity analysis methodology is introduced as a new perspective for this area. The activity of elastase enzyme, which is a digestive enzyme mostly of found in the digestive system of ... -
A new biflavonoid from Solanum dulcamara L. and investigation of anti-hyperglycaemic activity of its fruit extract
(Taylor & Francis Ltd, 2015)A new biflavone, 6,2 ',3 '',5 '',4'-pentahydroxy-3,7 ''-biflavone, has been isolated from the fruits of Solanum dulcamara L., in addition to two known compounds, beta-sitosterol and stigmasterol. Their structures were ... -
Validated spectrofluorimetric method for the determination of tamsulosin in spiked human urine, pure and pharmaceutical preparations
(Wiley-Blackwell, 2014)A novel, sensitive and selective spectrofluorimetric method was developed for the determination of tamsulosin in spiked human urine and pharmaceutical preparations. The proposed method is based on the reaction of tamsulosin ... -
Synthesis and biological evaluation of 2,5-di(7-indolyl)-1,3, 4-oxadiazoles, and 2-and 7-indolyl 2-(1,3,4-thiadiazolyl)ketones as antimicrobials
(Pergamon-Elsevier Science Ltd, 2014)A range of novel hydrazine bridged bis-indoles was prepared from readily available indole-7-glyoxyloylchlorides and 7-trichloroacetylindoles and underwent cyclodehydration to produce 2,5-di(7-indolyl)-1,3,4-oxadiazoles and ... -
Introducing a new method for evaluation of the interaction between an antigen and an antibody: Single frequency impedance analysis for biosensing systems
(Elsevier Science Bv, 2014)This paper illustrates the application of an antibody, anti-parathyroid hormone (anti-PTH), as a bioreceptor in a biosensor system for the first time, and demonstrates how this biosensor can be used in parathyroid hormone ... -
Fabrication of a highly sensitive disposable immunosensor based on indium tin oxide substrates for cancer biomarker detection
(Academic Press Inc Elsevier Science, 2014)Anti-HER-3 antibody was used for the first time in a disposable immunosensor based on indium tin oxide (ITO) substrate for HER-3 quantification. Anti-HER-3 was immobilized onto ITO substrate by 3-aminopropyl)triethoxysilane ... -
Electrochemical biosensor based on self-assembled monolayers modified with gold nanoparticles for detection of HER-3
(Elsevier Science Bv, 2014)We have developed a new immunological biosensor for ultrasensitive quantification of human epidermal growth factor receptor-3(HER-3). In order to construct the biosensor, the gold electrode surface was layered with, ... -
Development and validation of a sensitive spectrofluorimetric method for the determination of amoxapine in human plasma and urine
(Wiley-Blackwell, 2014)A selective and sensitive spectrofluorimetric method was developed and validated for the determination of amoxapine in human plasma and urine. The developed method is based on labeling with 5-dimethylaminonaphthalene-1-sulfonyl ... -
A novel impedimetric disposable immunosensor for rapid detection of a potential cancer biomarker
(Elsevier, 2014)A specific and sensitive biosensor was developed successfully for quantitative detection of human epidermal growth factor receptor by electrochemical impedance spectroscopy. Anti-human epidermal growth factor receptor ... -
Amperometric Biosensor for Xanthine Determination Based On Fe3O4 Nanoparticles
(Slovensko Kemijsko Drustvo, 2014)An amperometric xanthine biosensor was developed based on the immobilization of xanthine oxidase (XO) into the Fe3O4 nanoparticles modified carbon paste. Electron transfer properties of unmodified and Fe3O4 nanoparticles ... -
Phenolic compounds from Trifolium echinatum Bieb. and investigation of their tyrosinase inhibitory and antioxidant activities
(Pergamon-Elsevier Science Ltd, 2013)Two bischromones, 3,3'-dimethoxy-2'-oxychromone (1), 3,3'-dihydroxy-2,2'-oxychromone (2) and a biflavone, 5,7,4',5 '',3''',4''''-hexahydroxy-3 ''-O-beta-glucosyl-3',7 ''-O-biflavone (3) have been isolated from whole plant ... -
A review study of (bio)sensor systems based on conducting polymers
(Elsevier Science Bv, 2013)This review article concentrates on the electrochemical biosensor systems with conducting polymers. The area of electro-active polymers confined to different electrode surfaces has attracted great attention. Polymer modified ... -
Antioxidant and Tyrosinase Inhibitory Activities of Flavonoids from Trifolium nigrescens Subsp petrisavi
(Amer Chemical Soc, 2013)Trifolium nigrescens was researched for its chemical constituents for the first time. Bioassay-guided isolation of the EtOAc extract from the leaves of T. nigrescens resulted in the purification of a new biflavone, 4',5,5 ... -
Synthesis, characterization and biological studies of new antimony(III) halide complexes with omega-thiocaprolactam
(Elsevier Science Inc, 2012)Three new antimony(III) halide complexes (SbX3, X = Cl, Br and I) with the heterocyclic thione omega-thiocaprolactam (1-azacycloheptane-2-thione, (Hthcl)) of formulae {[SbCl2(mu(2)-Cl)(Hthcl)(2)](n)} (1), {[(SbBr2(mu(2)- ... -
9H-Carbazole-9-carbothioic dithioperoxyanhydride
(Int Union Crystallography, 2013)The whole molecule of the title compound, C26H16N2S4, is generated by twofold rotational symmetry. The carbazole skeleton is nearly planar [maximum deviation = 0.054 (5)angstrom]. In the crystal, aromatic pi-pi stacking ... -
Sulfite Determination by an Inhibitor Biosensor-based Mushroom (Agaricus Bisporus) Tissue Homogenate
(Informa Healthcare, 2012)The aim of the study presented here is to develop a biosensor based on mushroom (Agaricus bisporus) tissue homogenate for sensitive and economical determination of sulfite in foods. The working principle of the biosensor ... -
Immobilization of anti-aflatoxin B1 antibody by UV polymerization of aniline and aflatoxin B1 detection via electrochemical impedance spectroscopy
(Informa Healthcare, 2012)In the study, we investigated the practicality of the UV polymerization of aniline for anti-aflatoxin B1 antibody immobilization, and utilization of the resulting biosensor in the impedimetric determination of aflatoxin ... -
An impedimetric vascular endothelial growth factor biosensor-based PAMAM/cysteamine-modified gold electrode for monitoring of tumor growth
(Academic Press Inc Elsevier Science, 2012)In the present work, we have developed a new biosensor based on fourth-generation (G4) PAMAM dendrimers for the analysis of vascular endothelial growth factor (VEGF). First, the PAMAM dendrimers were covalently attached ...