- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Crystallography and molecular interactions
- Astrophysics and Cosmic Phenomena
- Synthesis and biological activity
- Chemical Synthesis and Reactions
- Sulfur-Based Synthesis Techniques
- Synthesis of Indole Derivatives
- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Gamma-ray bursts and supernovae
- Supramolecular Chemistry and Complexes
- Astrophysics and Star Formation Studies
- Molecular Sensors and Ion Detection
- Synthesis and Biological Evaluation
- Astrophysical Phenomena and Observations
- Multicomponent Synthesis of Heterocycles
- Animal health and immunology
- Neutrino Physics Research
- Luminescence and Fluorescent Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Viral gastroenteritis research and epidemiology
- Supramolecular Self-Assembly in Materials
- Astro and Planetary Science
- Advanced oxidation water treatment
Sabin Vaccine Institute
2023-2025
University of Cincinnati Medical Center
2023-2025
BML Munjal University
2023
Brunel University of London
2023
University of Bristol
2023
University of Auckland
2023
Rajasthan Dental College and Hospital
2022
Indian Institute of Technology Guwahati
2011-2020
Institute for Basic Science
2018-2020
University of Kashmir
2017-2020
We report a new approach to building hierarchical superstructures using shape-persistent porous organic cage, which acts as premade secondary unit, and coordination chemistry. To illustrate the principle, zinc-metalated porphyrin box (Zn-PB), corner-truncated cubic was connected by suitable dipyridyl terminated bridging ligands construct PB-based (PSSs). The PSSs were stabilized not only bonds between Zn ions bipyridyl-terminated but also π–π interactions corners of Zn-PB units. By varying...
Abstract Photocatalysed decolourization of two textile dye derivatives, Martius Yellow and Acid Blue 129, has been investigated in aqueous suspensions titanium dioxide under a variety conditions. The was studied by monitoring the decrease concentration as function irradiation time employing UV spectroscopic analysis technique. kinetics different conditions such types TiO2 (Anatase [Hombikat UV-100 PC500]/Anatase–Rutile mixture [Degussa P25]), initial reaction pH, catalyst dosage, presence...
The synthesis of hitherto unreported S-alkyl/aryl benzothiazole-2-carbothioate is reported from thiols, oxalyl chloride, and 2-aminothiophenols using 10 mol % n-tetrabutylammonium iodide (TBAI) as catalyst in acetonitrile through multicomponent reaction (MCR) strategy. present protocol favored formation benzothiazoles thioesters via simultaneous C–N C–S bonds good yields with a wide range substrates. A few the synthesized derivatives were evaluated for their antimicrobial activity against...
Host–guest complexes are of interest as supramolecular drugs in pharmaceutical sciences because the activity antibacterial agents can be enhanced upon complexation with various cyclic oligomers or metal ions, some possessing higher healing properties than parent drugs. Herein, to develop a microbiologically potent drug, we investigated macrocyclic hosts (resorcinarenes and β-cyclodextrin) pirfenidone (PFD), an FDA-approved antifibrotic drug containing pyridone core. Electronic structure...
Unsymmetrical sulfides were first synthesized using combinations of a 1,3-dicarbonyl, an aromatic aldehyde and thiol in the presence 10 mol % ethanolic piperidine. These derivatives subsequently converted into corresponding sulfones via oxidation m-chloroperoxybenzoic acid (m-CPBA) at ice-bath to room temperature. The former reaction was achieved temperature through one-pot three-component. later obtained good yields mild conditions with flexibility choice from range substrates....
The keto-enol tautomerism of avobenzone (AVO) is pivotal to its photostability, influenced by microenvironmental factors, such as, the type solvent and complexation with macrocyclic compounds. This study explores effect host-guest on AVO photostabilization, employing cucurbit[7]uril (CB[7]) β-cyclodextrin (β-CD) form inclusion complexes. CB[7] exhibits a higher affinity keto AVO, UVC radiation absorber. complexed facilitates regeneration enol form, reducing skin permeation. Spectroscopic...
A variety of 4-hydroxy-3-thiomethylcoumarin derivatives were synthesized <italic>via</italic> a one-pot three-component reaction catalysed by <sc>l</sc>-proline at room temperature. One the derivative was used as fluorescence probe to monitor and distinguish Co<sup>2+</sup> Ni<sup>2+</sup>.
Synthesis of unsymmetrical ether derivatives using 1-(aryl(alkyl/arylthio)methyl)-naphthalene-2-ol and alcohols in the presence bromodimethylsulfonium bromide (BDMS).
We explore the possibility that diffuse gamma-ray background radiation (GBR) at high Galactic latitudes could be dominated by inverse Compton scattering of cosmic ray (CR) electrons on microwave and starlight from our own galaxy. Assuming mechanisms accelerating CR hadrons are same, we derive simple successful relations between spectral indices GBR above a few MeV nuclei GeV. reproduce observed intensity angular dependence GBR, in directions away disc centre, without recourse to hypothetical...
A simple but elegant electrochemical (cyclic voltammetric) device was developed to detect antioxidative property of various substances (pure compounds, extracts spices etc.). It employed investigate the presence antioxidants / agents, in some common herbal and medicinal plant products, for example saffron, clove, tea etc. The concentration such showing estimated they were categorized as per voltammetric responses known antioxidants. effectiveness relative agents also...
Abstract Photoactives have a wide variety of applications that can benefit human health including the prevention melanoma and in photodynamic therapy. However, they also been implicated potential adverse impacts on aquatic environment. Hence, several efforts made to either synthesize or modulate properties existing photoactives. Supramolecular modification is one ways which photoactives are complexed with macrocycles yield unique physical chemical properties. Confined cavities alter life...
The study was conducted on weaned New Zealand White rabbits aged 4 to 5 months. First milking liquid bovine colostrum (BC) lyophilized make powder. Three different doses of BC (200, 400 and 600 mg/kg b.wt. per os for 15 days) were evaluated immunomodulatory potential against cow milk control. best dose then assessing the prevention ofEscherichia coli diarrhea. It observed that lyophilization decreased IgG non-significantly by 10.52%. Further, supplementation enhanced cell mediated immune...
The newly synthesized 3-(phenyl(phenylthio)methyl)-1H-indole ligand demonstrates chemosensor activity towards environmental and clinically important metal ions viz. Hg2+ Cu2+, via fluorescence intensity enhancement. rigid complex ceases non-radiative channels with respect to the free ligand. Incorporation of water significant enhancement in presence interfering make method superior over others detect trace amount into aqueous based medium. Also, detection Cu2+ are considered as subjects an...