نتایج جستجو برای: anthraquinone

تعداد نتایج: 1891  

2012
Jia Zheng Yi-jun Zheng Xin-hua Wan Zhi Yuan Wang

A cholesterol-based organogelator bearing an anthraquinone imide (AQI) group was synthesized and characterized. It self-assembled into chiral gels in acetonitrile at low concentrations, which displayed a combination of electrochromic and chiroptical properties. Upon electrochemical reduction at −700 mV, the gel exhibited new absorption bands at around 820 nm corresponding to π*-π* (SOMO→LUMO) t...

2011
Y. L. N. MURTHY B. VIJAYA CH. V. V. SATYANARAYANA MURTHY K. SRIHARI VARMA

Literature survey reveal that a good number of Anthracene and substituted Anthracene are potential lasing organic compounds. As per mit suo meada66 9,10-dimethyl and 9,10-diphenyl Anthracenes exhibit lasing properties, around 435-450 nm (ethanol). In continuation of our studies in this lab, our objective is to synthesize new lasing organic dyes, in particular, new Anthracene derivatives and stu...

2014
Bi-Wen Zhu Liang Cai Xiao-Peng He Guo-Rong Chen Yi-Tao Long

BACKGROUND Construction of electrochemical impedance sensors by the self-assembly technique has become a promising strategy for the 'label-free' detection of protein-ligand interactions. However, previous impedance sensors are devoid of an inherent electrochemical signal, which limits the standardization of the sensors for protein recognition in a reproducible manner. RESULTS We designed and ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2001
reza ojani jahanbakhsh raoof manochehr ebranimi

the aqueous electrochemistry of a number of anthraquinone derivatives was studied by using cyclic voltammetry at the surface of carbon paste electrode (cpe). from measurements of the half-wave potential as a function of ph, the potential - ph diagrams were constructed for each compound. the values of formal potentials and the pk'a of some different redox and acid-base couples involved in each c...

Journal: :The Journal of the Society of Chemical Industry, Japan 1969

Journal: :The Journal of antibiotics 2004
Jixun Zhan E M Kithsiri Wijeratne Christopher J Seliga Jun Zhang Elizabeth E Pierson Leland S Pierson Hans D Vanetten A A Leslie Gunatilaka

In the course of screening rhizosphere microflora of Sonoran desert plants for potential anticancer agents1,2), an unidentified Penicillium sp. (Trichonaceae) isolated from the rhizosphere of the apache plume (Fallugia paradoxa D. Don; Rosaceae) was found to produce several cytotoxic substances. Fractionation of the cytotoxic EtOAc extract led to the isolation of a new anthraquinone (1), a know...

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

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