Browsing by Keywords "chemistry"

Antibacterial electrospun poly(lactic acid) (PLA) nanofibrous webs incorporating triclosan/cyclodextrin inclusion complexes

Kayaci F.; Umu O.C.O.; Tekinay, T.; Uyar, T. (2013)

Solid triclosan/cyclodextrin inclusion complexes (TR/CD-IC) were obtained and then incorporated in poly(lactic acid) (PLA) nanofibers via electrospinning. α-CD, β-CD, and γ-CD were tested for the formation of TR/CD-IC by ...

Application of the Ugi reaction with multiple amino acid-derived components: Synthesis and conformational evaluation of piperazine-based minimalist peptidomimetics

Stucchi, M.; Cairati, S.; Cetin-Atalay, R.; Christodoulou, M.S.; Grazioso G.; Pescitelli G.; Silvani, A.; Yildirim, D.C.; Lesma G. (Royal Society of Chemistry, 2015)

The concurrent employment of α-amino acid-derived chiral components such as aldehydes and α-isocyanoacetates, in a sequential Ugi reaction/cyclization two-step strategy, opens the door to the synthesis of three structurally ...

Detecting secondary structure and surface orientation of helical peptide monolayers from resonant hybridization signals

Alici, K. B.; Gallardo I.F. (Nature Publishing Group, 2013)

Hybridization of dominant vibrational modes with meta-surface resonance allows detection of both structural changes and surface orientations of bound helical peptides. Depending on the resonance frequency of meta-molecules, ...

Digital holographic microscopy of phase separation in multicomponent lipid membranes

Rad V.F.; Moradi A.-R.; Darudi A.; Tayebi L. (SPIE, 2016)

Lateral in-homogeneities in lipid compositions cause microdomains formation and change in the physical properties of biological membranes. With the presence of cholesterol and mixed species of lipids, phospholipid membranes ...

Electroless synthesis of 3nm wide alloy nanowires inside Tobacco mosaic virus

Balci, S.; Hahn, K.; Kopold P.; Kadri, A.; Wege, C.; Kern, K.; Bittner, A.M. (2012)

We show that 3nm wide cobaltiron alloy nanowires can be synthesized by simple wet chemical electroless deposition inside tubular Tobacco mosaic virus particles. The method is based on adsorption of Pd(II) ions, formation ...

Electrospinning of functional poly(methyl methacrylate) nanofibers containing cyclodextrin-menthol inclusion complexes

Uyar T.; Nur, Y.; Hacaloglu, J.; Besenbacher, F. (Institute of Physics Publishing, 2009)

Electrospinning of nanofibers with cyclodextrin inclusion complexes (CD-ICs) is particularly attractive since distinct properties can be obtained by combining the nanofibers with specific functions of the CD-ICs. Here we ...

Examination of fabrication conditions of acrylate-based hydrogel formulations for doxorubicin release and efficacy test for hepatocellular carcinoma cell

Bayramoglu G.; Gozen, D.; Ersoy G.; Ozalp V.C.; Akcali, K.C.; Arica, M.Y. (VSP BV, 2014)

The objective of the present study was to develop 2-hydroxypropyl methacrylate-co-polyethylene methacrylate [p(HPMA-co-PEG-MEMA)] hydrogels that are able to efficiently entrap doxorubicin for the application of loco-regional ...

The formation and characterization of cyclodextrin functionalized polystyrene nanofibers produced by electrospinning

Uyar T.; Havelund, R.; Hacaloglu J.; Zhou X.; Besenbacher F.; Kingshott P. (2009)

Polystyrene (PS) nanofibers containing the inclusion complex forming beta-cyclodextrin (β-CD) were successfully produced by electrospinning aimed at developing functional fibrous nanowebs. By optimization of the electrospinning ...

Improved InGaN/GaN light-emitting diodes with a p-GaN/n-GaN/p-GaN/n-GaN/p-GaN current-spreading layer

Zhang, Z.-H.; Tan, S.T.; Liu W.; Ju, Z.; Zheng, K.; Kyaw, Z.; Ji, Y.; Hasanov, N.; Sun X.W.; Demir, H. V. (Optical Society of American (OSA), 2013)

This work reports both experimental and theoretical studies on the InGaN/GaN light-emitting diodes (LEDs) with optical output power and external quantum efficiency (EQE) levels substantially enhanced by incorporating ...

In vitro biocompatibility of plasma-aided surface-modified 316L stainless steel for intracoronary stents

Bayram, C.; Mizrak, A.K.; Aktürk, S.; Kurşaklioǧlu H.; Iyisoy, A.; Ifran, A.; Denkbaş, E.B. (Institute of Physics Publishing, 2010)

316L-type stainless steel is a raw material mostly used for manufacturing metallic coronary stents. The purpose of this study was to examine the chemical, wettability, cytotoxic and haemocompatibility properties of 316L ...

Influence of phase function on modeled optical response of nanoparticle-labeled epithelial tissues

Cihan, C.; Arifler, D. (2011)

Metal nanoparticles can be functionalized with biomolecules to selectively localize in precancerous tissues and can act as optical contrast enhancers for reflectance-based diagnosis of epithelial precancer. We carry out ...

Investigation of binding properties of dicationic styrylimidazo[1,2-a]pyridinium dyes to human serum albumin by spectroscopic techniques

Özdemir A.; Gökoğlu E.; EsraYılmaz; Yalçın E.; Gökoğlu E.; Seferoğlu Z.; Tekinay T. (John Wiley and Sons Ltd, 2017)

The binding interaction between two dicationic styrylimidazo[1,2-a]pyridinium dyes and human serum albumin (HSA) was investigated at physiological conditions using fluorescence, UV–vis absorption, and circular dichroism ...