First record of Pulvinaria aurantii Cockerell (Hemiptera: Coccomorpha: Coccidae) from India, with a key to species of Pulvinaria Targioni Tozzetti in India.

A soft scale insect, Pulvinaria aurantii Cockerell (Hemiptera: Coccomorpha: Coccidae), is recorded for the first time from India on Mangifera indica L., a new host plant record from a new host plant family. The species is probably native to Japan but has an invasive nature; it warrants special attention in India because it is attacking an economically important fruit crop.

Understanding the Therapeutic Potential of Smilax perfoliata and Elsholtzia griffithii Through GC-MS Analysis, Antimicrobial Assay and Molecular Docking.

Herbalism, rooted in traditional knowledge and regional practices, leverages plants as medicinal resources. India, with its vast biodiversity, harbors numerous untapped medicinal plants. This study focuses on the bioprospecting of two underexplored wild medicinal plants, Elsholtzia griffithii from Manipur and Smilax perfoliata from West Bengal, aiming to document their medicinal potential.

Where do the pyrene molecules reside within the surface active ionic liquid micelles in presence of sodium alginate?

Pyrene fluorescence in aqueous solutions of two surface active ionic liquids, namely, 1-decyl-3-methylimidazolium chloride, and 1-hexadecyl-3-methylimidazolium chloride was investigated in presence of a biopolymer sodium alginate. The principal objective of this study was to explore the influence of the length of the hydrocarbon tails of these surface active ionic liquids on the possible location of the probe (pyrene) molecules in presence of the additive. While an abrupt decrease in the values of the ratio of the intensity of the first vibronic band to that of the third band of pyrene emission spectrum with concentration was observed for 1-hexadecyl-3-methylimidazolium chloride in presence of sodium alginate like the polymer-free case reported earlier, there was a peculiar reversal for 1-decyl-3-methylimidazolium chloride + sodium alginate.

Dimension and Flexibility of Polystyrenesulfonate Chains in Methanol-Water.

The influence of the relative permittivity of the solvent medium on the single-chain dimension and flexibility of sodium polystyrenesulfonate chains has been investigated in mixed solvent media of methanol and water using viscosity experiments. Particular attention has been paid to explore the effect of the added low-molar-mass electrolyte. The root-mean-square (rms) radii of gyration of the chains in the unperturbed state have been calculated by applying the Flory model, while the intrinsic persistence lengths by the Benoit-Doty equation on the basis of the Kratky-Porod worm-like chain model.

Viscosity of Sodium Polystyrenesulfonate with Cetyltrimethylammonium Bromide in the Mixture of Methanol and Water.

Viscosity of cetyltrimethylammonium bromide (CTAB) in the presence of sodium polystyrene sulfonate (NaPSS) in methanol-water mixed solvent media has been reported at 308.15 K. The results have been analyzed on the basis of a simple model based on the scaling theory of the viscosity of polyelectrolyte solutions put forward by Plucktaveesak et al.

Description of A New Archaeococcoid of the Genus Newstead (Hemiptera: Coccomorpha: Monophlebidae) from India.

A new archaeococcoid (Hemiptera: Coccomorpha: Monophlebidae), Das & Das sp. nov., is described from specimens collected on twigs of (Retz.

Hydrodynamic and conformational characterization of aqueous sodium alginate solutions with varying salinity.

Insight into the role of electrostatic interactions on the hydrodynamics and conformation of aqueous sodium alginate was gained through viscometry. Alginate chains are found to shrink in salt-free solutions more rapidly with increasing polymer concentration compared to salt-solutions. For salt-free solutions, a reduced polymer concentration of less than 1 suffices to make the alginate coil volume half of that at infinite dilution which becomes invariant when the reduced concentration exceeds 8.

Description of a new soft scale insect of the genus Pulvinaria Targioni Tozzetti (Hemiptera: Coccomorpha: Coccidae) from India.

A new soft scale species (Hemiptera: Coccomorpha: Coccidae), Pulvinaria kalyaniensis Talukder Das, sp. n., is described from specimens collected on twigs of Azadirachta indica A.

A study on the interaction of horse heart cytochrome c with some conventional and ionic liquid surfactants probed by ultraviolet-visible and fluorescence spectroscopic techniques.

The interactions of a protein cytochrome c with some selected conventional and ionic liquid surfactants have been investigated at pH7.4 using ultraviolet-visible and fluorescence spectroscopic techniques. We used four conventional surfactants - cetyltrimethylammonium bromide (CTAB), dodecyltrimethylammonium bromide (DTAB), sodium N-dodecanoylsarcosinate (SDDS), and N-decanoyl-N-methylglucamine (Mega 10), and a surface active ionic liquid 1-hexadecyl-3-methylimidazolium chloride (CMeImCl).

Salt-induced counterion condensation and related phenomena in sodium carboxymethylcellulose-sodium halide-methanol-water quaternary systems.

Polyion-counterion interactions in sodium carboxymethylcellulose (NaCMC) in methanol-water media have been investigated conductometrically with reference to their variations with polyelectrolyte concentration, relative permittivity and the type and concentration of added electrolytes. The specific conductance data in polyelectrolyte-salt solutions were analyzed using an equation recently developed by us following the scaling description for the configuration of a polyion chain according to Dobrynin et al. Excellent quantitative agreement between the experimental results and those obtained with the new equation developed was observed.

Radii of gyration of sodium carboxymethylcellulose in aqueous and mixed solvent media from viscosity measurement.

The viscosities of three sodium carboxymethylcellulose samples with molecular weights of 90,000 [degree of substitution (DS): 0.7], 250,000 (DS: 0.9), and 700,000 (DS: 0.

Polyion-counterion interactions in sodium carboxymethylcellulose-ethylene glycol-water ternary solutions.

Polyion-counterion interactions in sodium carboxymethylcellulose-ethylene glycol-water ternary system have been investigated with special reference to their variations with the polyelectrolyte concentration, the medium relative permittivity and the temperature using electrical conductance measurements. The experimental data have been analyzed on the basis of a model for semidilute polyelectrolyte conductivity which takes into account the scaling arguments proposed by Dobrynin et al. Concentration-dependent moderate counterion condensation (24-33%) was observed.

A comparison of diffusion coefficients for ternary mixed micelle solutions measured by macroscopic gradient and dynamic light scattering techniques.

Taylor dispersion is used to measure ternary mutual diffusion coefficients (D(ik)) for aqueous solutions of decylsulfobetaine (SB10) (1) + dodecylsulfobetaine (SB12) (2), SB10 (1) + SB14 (2), and SB12 (1) + SB14 (2) mixed zwitterionic micelles. Cross-coefficient D(21) for the coupled flow of surfactant 1 produced by a concentration gradient in surfactant 2 is relatively small for these solutions, but D(12) reaches values as large as the main D(ii) coefficients. The results are interpreted by using the equation D(ik) = partial differential(C(i)D(i))/ partial differentialC(k) to relate the ternary mutual diffusion coefficients to the concentration-weighted average diffusion coefficients D(i) of the micellar and free-monomer forms of the surfactants.

Effects of concentration, relative permittivity, and temperature on the solution behavior of sodium carboxymethylcellulose as probed by electrical conductivity.

Precise measurements on the electrical conductivity of solutions of sodium salt of carboxymethylcellulose in acetonitrile/water mixed-solvent media containing 10, 20, and 40 vol % of acetonitrile are reported as a function of temperature. The degree of substitution of carboxymethylcellulose used was 0.70, and the concentrations were varied from approximately 1 x 10(-4) to approximately 1 x 10(-2) equiv L(-1).