A5039945615- Supramolecular Chemistry and Complexes
- Supramolecular Self-Assembly in Materials
- Molecular Sensors and Ion Detection
- Iron and Steelmaking Processes
- Mercury impact and mitigation studies
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Thermochemical Biomass Conversion Processes
- Crystallography and molecular interactions
- Coal and Its By-products
- Luminescence and Fluorescent Materials
- Coal and Coke Industries Research
- Porphyrin and Phthalocyanine Chemistry
- Coal Properties and Utilization
- Cassava research and cyanide
- South Asian Cinema and Culture
- Dendrimers and Hyperbranched Polymers
- Petroleum Processing and Analysis
- Air Quality and Health Impacts
- Sulfur Compounds in Biology
- Hydrology and Watershed Management Studies
- Groundwater and Watershed Analysis
- Gender Politics and Representation
- Karst Systems and Hydrogeology
- Indian Economic and Social Development
Central Institute of Mining and Fuel Research
2020-2024
Academy of Scientific and Innovative Research
2013-2024
National Chemical Laboratory
2013-2017
Savitribai Phule Pune University
2015-2017
Florida International University
2009
The helical handedness in achiral self-assemblies is mostly complex due to spontaneous symmetry breaking or kinetically controlled random assembly formation. Here an attempt has been made address this issue through chiral anion exchange. A new class of cationic C3-symmetric gelator devoid any conventional gelation assisting functional units found form both right- and left-handed structures. counteranion exchange-assisted approach successfully introduced control the chirality sign thereby...
A newly synthesized triphenylamine derivative (1Cl3) shows significant differences in inclusion complex formation with two different macrocyclic hosts, cucurbit[7]uril (CB[7]) and β-cyclodextrin (β-CD). Detailed investigations by NMR spectroscopy reveal that CB[7] forms a 1:3 host-guest ([1·3{CB[7]}]Cl3) which three arms of 1Cl3 are bound to host molecules. On the other hand, β-CD dynamic 1:1 ([1·{β-CD}]Cl3) binding only one at given time. The was also confirmed from results isothermal...
A chemodosimetric reagent for specific detection of cyanide species and its possible use in imaging applications as well assay development important enzymes.
Self-assembly of suitable molecular building blocks is an efficient and convenient approach to generate nanomaterials with various morphologies functions.
Binary pseudorotaxane formation between an aza crown derivative as host (H) and two different imidazolium derivatives guests (G1 G2) have been studied in detail by NMR (1H NMR, 2D NOESY), optical (steady state electronic emission spectroscopy), mass spectroscopy. Binding stoichiometry (1:1), association constant for the respective [2]pseudorotaxane (KaH.G1 = (2.61 ± 0.015) × 103 M-1 KaH.G2 (1.27 0.16) M-1), associated thermodynamic parameters are also evaluated based on isothermal titration...
The appropriate choice of the host molecules with well-defined optical activity (S-H/R-H) helps in differentiation between two secondary ammonium ion-derivative guest different activities (R-G/S-G) based on fluorescence resonance energy transfer (FRET)-based luminescence responses. Crown ether-based opposite chiral configurations (R-H, S-H) have been derived from 1,1'-bi-2-naphthol (BINOL) derivatives that axially biaryl centers. These crown ethers form host-guest complexes (i.e.,...
A unique fluorescence resonance energy transfer (FRET) process is found to be operational in a unilamellar lipid self-assembly the aqueous phase. newly synthesized naphthyl based long chain derivative [N-(naphthalene-1-ylmethyl)tetradecane-1-ammonium chloride, 14NA+] forms various self-assembled architectures Controlled changes concentration lead transition of self-assemblies from micelles vesicles rods. In presence cucurbit[7]uril (CB7), 14NA+ host–guest [2]pseudorotaxane complex...
Appropriate design of the host and guest components allows formation a novel [2]pseudorotaxane complex with an interrupted photoinduced electron transfer (PET)-coupled fluorescence resonance energy (FRET) response. This is first example inclusion NO6-based azacrown ether as unit (H). Different molecules (G1, G2, G3, G4) varying stopper size are used for studies. Unlike G1, G4 relatively bulkier fails to form complex. Isothermal titration microcalorimetry measurements reveal systematic...
Coke producers are facing a tough challenge to produce good quality metallurgical coke at reasonable price due decreasing availability and increasing cost of hard coking coal.The use alternative carbon source like non-coking bituminous coal, heat altered coal (Jhama), petcoke can be way address the problem. In this article, effect preheating stamp charging on parameters were studied compared with properties produced in top stamp-charging process. The before compaction resulting cokes has...
Coke plays multiple roles in blast furnace operation. Preparation of formed coke from inferior coal provides an alternate way to utilize for metallurgical uses. In this process briquettes coal, char were prepared produce similar properties the conventional and sufficient strength maintain shape during transport, storage utilization. study was using devolatilized at different temperature. The effect use studied terms point crushing strength. general, it observed that higher devolatilization...
Abstract Review: 48 refs.