نتایج جستجو برای: fluorescent properties

تعداد نتایج: 949634  

Journal: :Chemical communications 2009
Jeremiah J Gassensmith Jeffrey M Baumes Bradley D Smith

The chemical and photophysical properties of a fluorescent squaraine dye are greatly enhanced when it is mechanically encapsulated inside a tetralactam macrocycle. This feature article describes the synthesis, structure, and photophysical performance of first-generation squaraine rotaxanes, and shows how they can be used as fluorescent imaging probes and chemosensors.

Journal: :The Analyst 2014
Hong Huang Hua Li Ai-Jun Wang Shu-Xian Zhong Ke-Ming Fang Jiu-Ju Feng

A simple and green approach was developed for the preparation of fluorescent Cu nanoclusters (NCs) using the artificial peptide CLEDNN as a template. The as-synthesized Cu NCs exhibited a high fluorescence quantum yield (7.3%) and good stability, along with excitation and temperature dependent fluorescent properties, which could be employed for temperature sensing. Further investigations demons...

Journal: :Molecules 2012
Hyun Yi Cho Sang Keun Woo Gil Tae Hwang

We examined microenvironment-sensitive fluorescent 2'-deoxyuridines labeled with fluorene derivatives that exhibited solvent-dependent photophysical properties. The high sensitivity of the fluorescence shift and the nucleoside intensity dependence on solvent polarity provided information useful for estimating the polarity of the environment surrounding the fluorescent nucleoside.

Journal: :Chemical communications 2011
Doori Oh Seungah Lee Seong Ho Kang

In a free solution of 10.0 mM Gly-Gly (pH 8.2), the flow directions of native-DNA and DNA molecules intercalated with the fluorescent dye YOYO-1 were reversed in the microchip channel. These results clearly showed that in a confined space and under specific environmental conditions, the fluorescent dye modified the original properties and behavior of the native-DNA molecule.

Journal: :Molecular pharmaceutics 2011
Rongsheng Zhao Christin P Hollis Hua Zhang Lili Sun Richard A Gemeinhart Tonglei Li

Bioimaging and therapeutic agents accumulated in ectopic tumors following intravenous administration of hybrid nanocrystals to tumor-bearing mice. Solid, nanosized paclitaxel crystals physically incorporated fluorescent molecules throughout the crystal lattice and retained fluorescent properties in the solid state. Hybrid nanocrystals were significantly localized in solid tumors and remained in...

Journal: :Chemical communications 2012
Yumin Huang Feijie Song Zhen Wang Peihua Xi Ningjie Wu Zhigang Wang Jingbo Lan Jingsong You

A Pd/Cu-catalyzed dehydrogenative Heck coupling is established that allows direct alkenylation of various biologically relevant N-heteroarenes with alkenes. The resulting π-extended alkenylated N-heteroarenes exhibit interesting fluorescent properties and have proven to be potentially useful fluorescent probes for bioimaging.

2009
Martin A. Hubbe Joel J. Pawlak Alexander A. Koukoulas

This review article highlights progress in understanding the optical properties of paper. Paper’s appearance can be defined in terms of its opacity, brightness, color, fluorescent properties, gloss, and various quantities related to its uniformity. The phenomena that give rise to paper’s optical properties, especially its ability to scatter and absorb visible light, are highly dependent on pape...

Journal: :Journal of Photochemistry and Photobiology A: Chemistry 2012

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