نتایج جستجو برای: Cyanoacrylic

تعداد نتایج: 58  

2012

Introduction * Physical-chemical properties of the -cyanoacrylate * ABSTRACT Currently, new formulations of -cyanoacrylic tissue adhesives, are being studied for the repair of soft and hard tissue in order to improve properties such as: biodegradability, biocompatibility bone flexibility (in the soft tissue applications) and ease of handling. This paper presents a review of scientific literatur...

2016
Anja Fingerhut Yanlin Wu Axel Kahnt Julien Bachmann Svetlana B Tsogoeva

Two new functionalized 4,4'-disubstituted 2,2'-bipyridines that were end-capped with cyanoacrylic acid or cyanoacrylic acid ester anchoring groups, which might allow their efficient functionalization on TiO2 or other metal-oxide semiconductor surfaces, have been synthesized and characterized by electrochemical, photophysical, and spectroscopic measurements. The electrochemical and photophysical...

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2015
Liang Han Rui Kang Xiaoyan Zu Yanhong Cui Jianrong Gao

2-(Thiophen-2-yl)thiazole was introduced as a π-bridge into diethylamino coumarin and novel coumarin sensitizers were synthesized with cyanoacrylic acid or rhodanine acetic acid as electron acceptor. Their light-harvesting capabilities and photovoltaic performance were investigated and compared with those of a similar sensitizer bearing a phenylthiophene bridge. Replacement of benzene in the π-...

Journal: :Chemical communications 2011
Dong-Yi Chen Kum-Yi Cheng Mei-Lin Ho I-Che Wu Min-Wen Chung Hungshin Fu Pi-Tai Chou

A bifunctional compound 1 was designed and synthesized, in which the donor-π-conjugated-acceptor-cyanoacrylic acid configuration is suited for DSSC, while the tetraoxa-azacrown (donor) part also acts as the recognition unit for e.g. Ca(2+) and the output of DSSC is utilized as signal transduction, demonstrating a new recognition concept using DSSC.

Journal: :Physical chemistry chemical physics : PCCP 2014
Burkhard Zietz Erik Gabrielsson Viktor Johansson Ahmed M El-Zohry Licheng Sun Lars Kloo

Organic solar cell dyes containing the most common anchoring group, cyanoacrylic acid, are shown to be photolabile and undergo photoisomerization. This may have significant consequences for dye-sensitized solar cells, as isomerisation competes with electron injection and leads to modifications of the dye and surface arrangement.

Journal: :Chemical communications 2015
Erik Gabrielsson Haining Tian Susanna K Eriksson Jiajia Gao Hong Chen Fusheng Li Johan Oscarsson Junliang Sun Håkan Rensmo Lars Kloo Anders Hagfeldt Licheng Sun

Dipicolinic acid was investigated as a new anchoring group for DSSCs. A pilot dye (PD2) bearing this new anchoring group was found to adsorb significantly stronger to TiO2 than its cyanoacrylic acid analogue. The electrolyte composition was found to have a strong effect on the photoelectrochemical properties of the adsorbed dye in the device, allowing the dye LUMO energy to be tuned by 0.5 eV. ...

2013
Alexis Tigreros Vivek Dhas Alejandro Ortiz Braulio Insuasty Nazario Martín Luis Echegoyen

Four new organic dyes, 1–4, containing triphenylamine (TPA) donors connected through different acetylene linkages to fluorene bridges and cyanoacrylic acid acceptors were designed and synthetized for photoconversion in dye sensitized solar cells (DSSCs). Their absorption spectra, electrochemical and photovoltaic properties were investigated. Shortening the bridge between the TPA moiety and the ...

Journal: :Urology 2001
F Bardari L D'Urso G Muto

Once previously attempted conservative maneuvers have failed, iatrogenic persistent urinary fistulas usually require difficult repeated operations. We describe 3 patients in whom cyanoacrylic glue was used to repair endoscopically persistent urinary fistulas occurring after major pelvic surgery. At a mean follow-up of 21 months, all patients were free of urinary leakage and had no evidence of r...

Journal: :Türk Üroloji Dergisi/Turkish Journal of Urology 2017

Journal: :Journal of the American Chemical Society 2006
Sanghoon Kim Jae Kwan Lee Sang Ook Kang Jaejung Ko J-H Yum Simona Fantacci Filippo De Angelis D Di Censo Md K Nazeeruddin Michael Grätzel

Novel organic sensitizers comprising donor, electron-conducting, and anchoring groups were engineered at molecular level and synthesized. The functionalized unsymmetrical organic sensitizers 3-{5-[N,N-bis(9,9-dimethylfluorene-2-yl)phenyl]-thiophene-2-yl}-2-cyano-acrylic acid (JK-1) and 3-{5'-[N,N-bis(9,9-dimethylfluorene-2-yl)phenyl]-2,2'-bisthiophene-5-yl}-2-cyano-acrylic acid (JK-2), upon anc...

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