Hydrogen-bonded Multilayers of Tannic Acid: Tuning pH Response

Date

2007-02-05

Author

Erel Göktepe, İrem

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https://hdl.handle.net/11511/81125

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Hydrogen-Bonded Multilayers of a pH and Temperature Responsive Block Copolymer Micelle Erel Göktepe, İrem; Sukhishvili, Svetlana (2008-08-17)
Hydrogen-bonded multilayers of micelles of a dually responsive dicationic block copolymer Erel Göktepe, İrem; Tuncer, Cansel; Butun, Vural; Demirel, A. Levent (2012-01-01) We report the fabrication of hydrogen-bonded multilayers of micelles of a dually responsive, dicationic block copolymer, poly[2-(N-morpholino)ethyl methacrylate-block-2-(diisopropylamino)ethyl methacrylate] (PMEMA-b-PDPA). By taking advantage of the difference in the hydrophilicity of PMEMA and PDPA blocks, micelles with a PMEMA-corona and a PDPA-core were obtained above pH 6.5 and were assembled layer-by-layer at the surface with tannic acid (TA) at pH 7.4 through hydrogen bonding interactions between morp...
Hydrogen-bonded layer-by-layer films of poly(d,l-lactic-co-glycolic acid)-b-poly(ethylene glycol) polymersomes and tannic acid Çalış, Gökçe; Erel Göktepe, İrem; Banerjee, Sreeparna; Department of Polymer Science and Technology (2017) Poly(lactic-co-glycolic acid)-b-poly(ethylene glycol) (PLGA-b-PEG) can self-assemble into core/shell nanostructures in aqueous environment due to its amphiphilic nature. These nanostructures have been widely used as drug carriers in the biomedical applications due to biocompatibility and biodegradability of PLGA-b-PEG. Biodegradable character of the nanostructures provides an advantage for controlled drug delivery systems. The drug release occurs through hydrolytic degradation of PLGA core. There are studie...
Hydrogen-bonded multilayers of a neutral polymer and a polyphenol Erel Göktepe, İrem (2008-06-10) We report on association of tannic acid (TA) with neutral or charged polymers in solution and at surfaces and contrast hydrogen-bonded and electrostatically associated polymer/TA complexes and TA/polymer layer-by-layer (LbL) films as per their stability in the pH scale. The neutral polymers used for hydrogen bonding with TA were poly(N-vinylcaprolactam) (PVCL), poly(N-vinylpyrrolidone) (PVPON), poly(ethylene oxide) (PEO), or poly(N-isopropylacrylamide) (PNIPAM), and the polymer used to explore electrostatic...
Hydrogen-Bonded Multilayers With Controllable pH-Induced Disintegration Kinetics for Controlled Release Applications From Surfaces Bağ, Esra; Begik, Oguzhan; Yusan, Pelin; Erel Göktepe, İrem (2015-04-03) We report on incorporation of coordination complexes into hydrogen-bonded multilayers which was found to be an effective method to control pH-induced disintegration kinetics of hydrogen-bonded multilayers. By taking advantage of the strong metal chelating and hydrogen donating properties of Tannic Acid (TA), coordination complexes of Zr4+ and TA (Zr(IV)-TA complexes) were prepared and then self-assembled at the surface using hydrogen accepting polymers such as poly (N-vinyl caprolactam) (PVCL) or poly(N-iso...

Citation Formats

İ. Erel Göktepe, “Hydrogen-bonded Multilayers of Tannic Acid: Tuning pH Response,” 2007, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/81125.