Browsing by Author "Baran, Talat"
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Antimicrobial and antioxidant properties of Ceriodaphnia quadrangula ephippia chitosan
Aşan Özüsağlam Meltem; Çakmak, Yavuz Selim; Kaya, Murat; Erdoğan, Sevil; Baran, Talat; Menteş, Ayfer; Saman, İhsan (Editura Ars Docendi, 2016)The chitosan from ephippia of Ceriodaphnia quadrangula (Crustaceae) has been fully characterized in our previous study, and in this work it was tested for antibacterial and antifungal activities against human and fish ... -
Antitumor activity of chitosan from mayfly with comparison to commercially available low, medium and high molecular weight chitosans
Tan, Gamze; Kaya, Murat; Tevlek, Atakan; Sargın, İdris; Baran, Talat (Springer, 2018)Insects' cuticles have a potential to be evaluated as a chitin source. Especially adults of aquatic insects like mayflies (order Ephemeroptera) swarm in enormous numbers in artificially lit areas while mating in spring and ... -
Antitumor and apoptotic effects of new-generation platinum compounds on human leukemia cell lines HL-60 and K562
Karacaer, Neslihan Tekin; Kerimoğlu, Barış; Baran, Talat; Tarhan, Mehtap; Menteş, Ayfer; Öztürk, Kamile (Springer, 2022)The goal of this investigation is to report the fabrication, characterization, cytotoxicity, and apoptotic assessment of new platinum based compounds on K562 and HL-60 human leukemia cells. Two new platinum (II) compounds, ... -
Assessment of a Pd-Fe3O4-biochar nanocomposite as a heterogeneous catalyst for the solvent-free Suzuki-Miyaura reaction
Akay, Sema; Baran, Talat; Kayan, Berkant; Kalderis, Dimitrios (Elsevier, 2021)The objective of this study was the development of a novel, biochar-based Pd nanocatalyst and its evaluation for the promotion of the Suzuki-Miyaura coupling reaction. The Fe3O4-Pd-biochar composite was successfully ... -
Bat guano as new and attractive chitin and chitosan source
Kaya, Murat; Seyyar, Osman; Baran, Talat; Türkeş, Tuncay (BioMed Central Ltd., 2014)Introduction: Chitin is a biopolymer that forms the exoskeleton of arthropods, and is found in the cell walls of fungi. It has a wide range of uses in fields such as cosmetics, pharmacy, medicine, bioengineering, agriculture, ... -
Bazı çevresel kirleticilerin katalitik indirgenmesi için kitosan/NiO mikroküreler üzerinde desteklenen paladyum nano-katalizörün tasarımı ve karakterizasyonu
Erdoğan, Afife Nur (Aksaray Üniversitesi Fen Bilimleri Enstitüsü, 2023)Aromatik nitro bileşikleri ve organik boyalar, sucul yaşam, çevre ve insan sağlığı için oldukça tehlikeli olan, su/atıksuda bulunan en önemli çevresel kirleticilerden biridir. Bu yüzden bu kirleticilerin, su/atık sudan, ... -
Bentonite-supported furfural-based Schiff base palladium nanoparticles: an efficient catalyst in treatment of water/wastewater pollutants
Nasrollahzadeh, Mahmoud; Baran, Talat; Sajjadi, Mohaddeseh; Yılmaz Baran, Nuray; Shokouhimehr, Mohammadreza (Springer, 2020)This study reports a versatile process for the fabrication of palladium nanoparticles (Pd NPs) stabilized on Schiff base modified Unye bentonite with a coordination performance of furfural ligand (UN-Fur@PdNPs) as a promising ... -
Bio-synthesis and structural characterization of highly stable silver nanoparticles decorated on a sustainable bio-composite for catalytic reduction of nitroarenes
Baran, Talat (Elsevier Science Bv, 2019)Bio-polymers are the most significant natural alternative stabilizers compared to their synthetic counterparts for fabrication of noble metal nanoparticles because of their higher thermal stability, renewability, low cost, ... -
Biosynthesis of highly retrievable magnetic palladium nanoparticles stabilized on bio-composite for production of various biaryl compounds and catalytic reduction of 4-nitrophenol
Baran, Talat (SPRINGER, 2019)In this study, eco-friendly palladium nanoparticles (Pd NPs@Pct-CMC/Fe3O4) with magnetic recoverability, high efficiency, renewability, reusability, and high thermal stability were fabricated on pectin/carboxymethyl cellulose ... -
Carboxymethyl chitosan schiff base supported heterogeneous palladium(II) catalysts for suzuki cross-coupling reaction
Baran, Talat; Açıksöz, Eda; Menteş, Ayfer (Elsevier Science Bv, 2015)In this study, two new O-carboxymethyl chitosan Schiff bases supported Pd(II) catalyst were synthesized (OCMCS-3aPd and OCMCS-4aPd). The catalysts were characterized with FTIR, TG/DTG, SEM/EDAX, XRD, ICP-OES, UV vis, ... -
Catalytic activity of palladium doped activated carbon from waste coffee on some environmental pollutants
Karaoğlu, Kaan; Özçifçi, Zehra; Çalışkan, Melike; Baran, Talat; Akçay, Hakkı Türker (Elsevier, 2022)The presence of nitro compounds and such commercial dyes as Congo red, methylene blue, methyl orange and methyl red in water/wastewater causes environmental issues. The treatment of such industrial contaminants, new efficient ... -
Cationic palladium(II) catalysts on O-carboxymethyl chitosan schiff base for Suzuki coupling reactions
Baran, Talat; Menteş, Ayfer (Taylor & Francis, 2016)In this study, catalytic activity of two different cationic O-Carboxymethyl chitosan Schiff base palladium (II) complexes in Suzuki coupling reactions and synthesis of biarlys having different functional groups, and ... -
Characterisation of chitin in the cuticle of a velvet worm (Onychophora)
Greven, Hartmut; Kaya, Murat; Sargın, İdris; Baran, Talat; Kristensen, Reinhardt Mobjerg; Sorensen, Martin Vinther (Tubitak, 2019)We characterize the trunk cuticle of velvet worms of the Peripatoides novaezealandiae-group (Onychophora) using SEM, TEM, Fourier transform infrared spectroscopy (FT-IR), and thermogravimetric analysis (TGA). TEM and SEM ... -
Characterisation of α-chitin extracted from a lichenised fungus species Xanthoria parietina
Kaya, Murat; Halıcı, Mehmet Gökhan; Duman, Fatih; Erdoğan, Sevil; Baran, Talat (Taylor & Francis, 2015)Lichens are symbiotic associations formed mainly by ascomycete fungi and green algae or cyanobacteria. The presence of chitin in the fungal cell wall has been revealed by previous studies. Considering the presence of fungi ... -
Chitin extraction and characterization from Daphnia magna resting eggs
Kaya, Murat; Sargın, İdris; Tozak, Kabil Özcan; Baran, Talat; Erdoğan, Sevil; Sezen, Göksal (Elsevier Science Bv, 2013)New application areas for chitin and its derivatives have been extensively investigated and there is a solid, growing demand for new chitin sources. In this present study, chitin content of Daphnia magna resting egg (18-21%) ... -
Chitin extraction and chitosan production from Chilopoda (Scolopendra cingulata) with identification of physicochemical properties
Zelencova, Laura; Erdoğan, Sevil; Baran, Talat; Kaya, Murat (Maik Nauka/Interperiodica/Springer, 2015)The Chilopoda is found in a broad array of terrestrial habitats from tropical rain forests to deserts and there are more than 8000 species worldwide. Chitin and chitosan were obtained from Scolopendra cingulata for the ... -
A combination method based on chitosan adsorption and duckweed (Lemna gibba L.) phytoremediation for boron (B) removal from drinking water
Türker, Onur Can; Baran, Talat (Taylor & Francis, 2018)The metalloid boron (B) and its compounds widely exist in the environment, and boron can have hazardous effects on plants, animals, and human beings when it is found in high concentrations in water bodies. It is difficult ... -
Comparison of chitin structures derived from three common wasp species (vespa crabro linnaeus, 1758, vespa orientalis linnaeus, 1771 and vespula germanica (FABRICIUS, 1793))
Kaya, Murat; Bağrıaçık, Nil; Seyyar, Osman; Baran, Talat (John Wiley and Sons Limited, 2015)There has been no study on the chitin structure of wasp species. Here, we selected the three most common wasp species belonging to the family Vespidae for chitin extraction and characterization. Chitin was isolated from ... -
Comparison of chitin structures isolated from seven Orthoptera species
Kaya, Murat; Erdoğan, Sevil; Mol, Abbas; Baran, Talat (Elsevier, 2015)Differences in the physichochemical properties of the chitin structure of the exoskeleton of seven species from four genera were investigated in this study. The same method was used to isolate the chitin structure of the ... -
Comparison of physicochemical properties of chitins isolated from an insect (Melolontha melolontha) and a crustacean species (Oniscus asellus)
Kaya, Murat; Baublys, Vykintas; Can, Esra; Satkauskiene, Ingrida; Bitim, Betül; Tubelyte, Vaida; Baran, Talat (Springer, 2014)The chitin structures of two common European species belonging to Insecta (Melolontha melolontha) and Crustacea (Oniscus asellus) were isolated. The same procedure is followed for chitin isolations for both the species. ...