2, 4, 6-Triphenylpyrylium ion (TP+), a well-known single electron transfer photosensitizer, encapsulated inside the voids of a microporous Y zeolite (TPY) (spherical cages of 1.3 nm diameter, tetrahedrally interconnected through four openings of 0.74 nm diameter) has been tested as heterogeneous...
A bacterial strain (SE08) capable of utilizing 2-methyl-4-chlorophenoxy acetic acid (MCPA) as the sole carbon and energy source for growth was isolated by continuous enrichment culturing in minimal salt medium (MSM) from a long term MCPA exposed soil. This bacterial strain was identified as Ente...
The toxicity of the herbicide Agroxone 3, a commercial formulation of the sodium salt of 2-methyl-4-chlorophenoxyacetic acid (MCPA), in the adult newt (Triturus cristatus carnifex) was tested after percutaneous exposure. At the concentration of 3200 ppm, the LT50 values were 17 and 21 hr for mal...
We studied the effect of 4-chlorophenoxyacetic acid-raised tomato homogenate on rat erythrocyte antioxidant enzymes, namely glucose-6-phosphate dehydrogenase, catalase, selenium-dependent glutathione peroxidase, and Cu/Zn-superoxide dismutase. Tomatoes were raised with 1, 10, or 20 ppm of 4-chlo...
Degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) and 2-methyl-4-chlorophenoxyacetic acid (MCPA) was investigated in inoculated non-contaminated and contaminated soil. In 28 days three bacterial isolates (Xanthomonas maltophilia SB5, Pseudomonas sp. SB9 and Rhodococcus globerulus SA2) degrad...
A novel strategy is reported for the fabrication of bis-aniline-crosslinked Au nanoparticles (NPs)-CdSe/ZnS quantum dots (QDs) array composite by facil one-step co-electropolymerization of thioaniline-functionalized AuNPs and thioaniline-functionalized CdSe/ZnS QDs onto thioaniline-functionalize...
Photodegradation of 4-chlorophenoxyacetic acid (4-CPA) was systematically investigated using N-doped TiO2 (N-TiO2) under commercially available visible light emitting diode (Vis LED) as a novel Vis LED illumination in photocatalysis applications. The synergetic effect of Vis LED/N-TiO2 process w...
In this study, a series of CuS/Bi4Ti3O12 p-n heterojunction materials were synthesized by a two-step process. Initially, the Aurivillius phase Bi4Ti3O12 (BT) was synthesized by a facile combustion route using urea as a fuel. The Bi4Ti3O12 was subsequently modified by deposition of CuS (5–20 wt%...
The photocatalysed degradation of 4-chlorophenoxyacetic acid (4-CPA, 1) has been investigated in aqueous suspensions of titanium dioxide under a variety of conditions. The degradation was studied by monitoring the change in substrate concentration employing UV spectroscopic analysis technique an...
The ECL properties and application of a novel luminescent material molybdenum disulfide-graphene quantum dots (MoS2-GQDs) hybrid nanocomposite was reported for the first time. The hybridization of MoS2 and GQDs endowed nanocomposite with structural and compositional advantages for boosting the E...
l-3-(3′-Carboxy-4′-hydroxyphenyl)alanine (3-carboxytyrosine) constitutes 3% of the seeds of Neonotonia wightii (Glycine wightii); it has also been detected in the seeds of 3 species belonging to 2 other genera of the Glycineae. The systematic significance of these findings is discussed.
We previously identified cysteine 475 as a key residue for the inhibitory action of sanguinarine on the human glycine transporter GlyT1c. To define potential benzophenanthridine binding pocket more closely, we created a structural homology model of GlyT1 and also mutated several amino acids in t...
The development of highly efficient and green catalyst for the one-pot synthesis of 5-substituted tetrazole and polyhydroquinoline derivatives is an extremely important and ground challenging area in organic chemistry. In this study, two catalysts were prepared by the immobilization of Ni and Cu...
In this paper we describe a novel ring-opening reaction in which 4-(4′-hydroxyphenyl)-azetidine-2-ones, on treatment with base, rearrange to quinone methide intermediates with concomitant cleavage of the C(4)N(1) bond. The quinone methide intermediate serves as a substrate for Michael-type 1,...
Asymmetric construction of β,β-diaryl substituted glycine bearing two contiguous chiral centers remains a significant challenge. Herein, the application of the para-quinone methides (p-QMs) and Ni(II)- complex of glycine via 1,6-conjugate addition to achieve asymmetric synthesis of β,β-diary...
N-(3,5-Difluoro-4-hydroxyphenyl)benzenesulfonamide (4) and its derivatives 5–7 were prepared as putative bioisosteres of the previously reported aldose reductase inhibitors, which are the N-benzenesulfonylglycine derivatives I–IV. The in vitro aldose reductase inhibitory activity of the prepar...
A bacterium, strain 10-L-2, that was isolated from soil and identified as Bacillus cereus grew well on medium containing 4-phenylenediamine and Polypepton. Strain 10-L-2 converted a wide variety of anilines, including 4-phenylenediamine, to their corresponding acetanilides. Growing cells acetyla...
Co-operative and complex catalytic transformations in biological systems comprise a set of diverse reactions in a single compartment. Herein, palladium and Cal B lipase were sequentially co-immobilized in the microenvironment of mesocellular foam to mimic biological systems and fully characteriz...
Cellulose acetate (CA) was modified using N-(phenyl amino) maleimides (R-APhM) where, RH or 4-NO2. The structure of the modified polymer was characterized by 13C-NMR. The chemical modification is based on the reaction between the acetyl group of the glucopyranose ring in cellulose acetate and th...
A simple and efficient method for the synthesis of 2-phenyl pyridine via cyclization of aryl ketone with 1,3-diaminopropane using palladium acetate is established. This method is mild, operationally simple, involves short reaction time and involves easy workup procedure to afford the correspondi...
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