The novel photoswitchable bis-azo derivative reported herein shows a high temporal resolution of 2 × 10(8) times between the thermal relaxation rates of its two constituting photochromes. Moreover, the slow and fast azo building blocks of this molecular construct can be triggered by using UV and visible light, respectively.

in this study, the adsorption of 4-hydroxy phenyl-azobenzene on the surface of (4, 0) zigzag open-end boron nitride nanotube (bnnt) has been investigated by quantum calculations. in order to find the preferred adsorption site, different positions and orientations were considered. the impacts of donor-acceptor electron delocalization on the structural and electronic properties and reactivity of ...

This study was conducted to investigate the use of cubic LaMnO3 nano-perovskite as a green catalyst for the degradation of an aqueous solution of methyl orange under different conditions. Nanoscale cubic lanthanum manganite with the particle size of ~20 nm was successfully synthesized via citrate sol-gel method. The sample was characterized using the FT-IR and UV-Vis spectroscopy, XRD, SEM, and...

It is highly desirable to develop affordable, energy-saving, and highly-effective technologies to alleviate the current water crisis. In this work, we reported a low-cost electrochemical filtration device composing of a conductive cotton filter anode and a Ti foil cathode. The device was operated by gravity feed. The conductive cotton filter anodes were fabricated by a facile dying method to in...

Background & Aims of the Study: Azo dyes utilized in industrial processes, such as the textile manufacturing, lead to the creation of huge amounts of colored wastewaters that contain non-organic and organic constituents. Therefore, it is necessary to search for remedies in this regard. This study investigated the degradation and mineralization of Acid red 14 (AR14), which is a mono Azo dye gene...

Metal systems have been extensively used for the abiotic remediation of recalcitrant pollutants. Zero-valent metals such as iron (Fe 0 ), zinc (Zn 0 ), magnesium (Mg 0 ) have been used for the reductive dechlorination of organic compounds Nanoscale zero-valent iron particles have been reported to be very effective for the transformation and detoxification of a wide variety of contaminants, such...

background and objectives: synthetic dyes are recalcitrant to degradation and toxic to different organisms. decolorization of textile wastewaters is one of the major concerns since last decades. physical-chemical treatments are very expensive and frequently producing large amounts of toxic wastes. biological treatments can be more convenient. in the present study, an attempt has been made for d...

In continuing studies of drugs against Mycobacterium leprae in mice we have tested the following compounds: lincomycin, clinimycin (7( S ) -chloro-7 -deoxylincomycin, clindamycin) , U-24729A (4' -pentylN -demethyl-7 -chlorolincomycin), amicetin, phosphonomycin, ABT-29666 (1-{3-[ 4-(pchlorophenyl-azo )-5, 6, 7, 8-tetrahydro-1naphthylamino] propyl} piperidine), ABT38396 (1{3-[ 4-( 6-methoxy-3-pyr...