Two novel NIR-sensitive unsymmetrical squaraine dyes, SQ-258 and SQ-259, for their suitability as a sensitizer in dye-sensitized solar cells (DSSCs) were designed synthesized, followed by photophysical photovoltaic characterizations. It was demonstrated that introducing 1,3-indandione acceptor unit the central squaric acid core of SQ-259 led to suppression dye aggregation owing its non-planar m...

The O(2)-sensitive reduction of high-molecular-weight aromatic azo and nitro dyes by intestinal bacteria appears to be mediated by low-molecular-weight electron carriers with E(o)' = -200 to -350 mV. This process may allow the design of polymeric azo prodrugs for specific release of certain aromatic amines in the colon.

Inorganic enzyme? Ceria nanoparticles exhibit unique oxidase-like activity at acidic pH values. These redox catalysts can be used in immunoassays (ELISA) when modified with targeting ligands (see picture; light blue and yellow structures are nanoparticles with attached ligands). This modification allows both for binding and for detection by the catalytic oxidation of sensitive colorimetric dyes...

The bifunctionality of graphene oxide (GO) that can highly adsorb single-stranded DNA (ssDNA) and effectively quench the emission of organic dyes is reasonably utilized in a chemiluminescence resonance energy transfer (CRET) system, achieving sensitive and selective detection of DNA (H1V1) and protein (thrombin), respectively.

The bifunctionality of graphene oxide (GO) which can highly adsorb single-stranded DNA (ssDNA) and effectively quench the emission of organic dyes is reasonably utilized in a multiplexed DNA detection system, achieving sensitive and selective detection of HIV, VV and EV, respectively.

Bu çalışmada organik boya esaslı güneş pili hücrelerinde (DSSC) kullanılmak üzere trifenilamin (TFA) tabanlı moleküllerin kuantum kimyasal hesaplamaları yapılmış ve yorumlanmıştır. DSSC molekülleri elektronu itme-çekme sistemi ile çalıştığı için TFA-1 bileşiğini donör-akseptör (D-A), TFA-2 TFA-3 bileşiklerinin dizilimi donör-π köprü-akseptör (D-π-A) şeklinde tasarlanmıştır. Daha sonra çalışılan...

We have demonstrated a new strategy to improve the fluorescence detection limit by enhancing the energy transfer efficiency between carbon structures and fluorescent dyes using polyimidazolium-functionalized carbon nanostructures as a low background signal platform. Based on this, a highly sensitive method for thrombin was proposed with a detection limit as low as 2.79 pM without any amplificat...