Search Results - "Kumar, Sugam"

Structure and Interaction of Nanoparticle–Protein Complexes by Kumar, Sugam, Yadav, Indresh, Aswal, Vinod Kumar, Kohlbrecher, Joachim

“…The integration of nanoparticles with proteins is of high scientific interest due to the amazing potential displayed by their complexes, combining the…”
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Modifications in the nanoparticle-protein interactions for tuning the protein adsorption and controlling the stability of complexes by Kumar, Sugam, Saha, Debasish, Takata, Shin-ichi, Aswal, Vinod K., Seto, Hideki

“…We report the pathways to suppress or enhance the protein adsorption on nanoparticles and thereby control the stability of the nanoparticle-protein complexes…”
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pH-Dependent Interaction and Resultant Structures of Silica Nanoparticles and Lysozyme Protein by Kumar, Sugam, Aswal, Vinod K, Callow, P

“…Small-angle neutron scattering (SANS) and UV–visible spectroscopy studies have been carried out to examine pH-dependent interactions and resultant structures…”
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Evolution of Interactions in the Protein Solution As Induced by Mono and Multivalent Ions by Kumar, Sugam, Yadav, Indresh, Ray, Debes, Abbas, Sohrab, Saha, Debasish, Aswal, Vinod K, Kohlbrecher, Joachim

“…The evolution of interactions in the bovine serum albumin (BSA) protein solution on addition of mono and multivalent (di, tri and tetra) counterions has been…”
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Small-Angle Neutron Scattering Study of Interplay of Attractive and Repulsive Interactions in Nanoparticle–Polymer System by Kumar, Sugam, Aswal, Vinod K, Kohlbrecher, Joachim

“…The phase behavior of nanoparticle (silica)–polymer (polyethylene glycol) system without and with an electrolyte (NaCl) has been studied. It is observed that…”
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Reentrant phase behavior of nanoparticle solutions probed by small-angle scattering by Kumar, Sugam, Ray, Debes, Abbas, Sohrab, Saha, Debasish, Aswal, Vinod K., Kohlbrecher, Joachim

“…The nanoparticles in solution represent a model system, where the well-established colloidal theories such as the Debye–Hückel theory and/or…”
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Experimental investigation for stability and surface properties of TiO2 and Al2O3 water-based nanofluids by Das, Pritam Kumar, Mallik, Arnab Kumar, Molla, Altaf Hossain, Santra, Apurba Kumar, Ganguly, Ranjan, Saha, Abhijit, Kumar, Sugam, Aswal, V. K.

“…Nanofluids have gained recent attention because of their potential applications in diverse engineering fields like enhancing thermal transport, particle…”
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SANS and UV–vis Spectroscopy Studies of Resultant Structure from Lysozyme Adsorption on Silica Nanoparticles by Kumar, Sugam, Aswal, Vinod K, Kohlbrecher, Joachim

“…The interaction of lysozyme protein (M.W. 14.7 kD) with two sizes of silica nanoparticles (16 and 25 nm) has been examined in aqueous solution using UV–vis…”
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Small-Angle Neutron Scattering Study of Structure and Interaction of Nanoparticle, Protein, and Surfactant Complexes by Mehan, Sumit, Chinchalikar, Akshay J, Kumar, Sugam, Aswal, Vinod K, Schweins, Ralf

“…Small-angle neutron scattering (SANS) measurements have been carried out from the multicomponent system composed of Ludox HS40 silica nanoparticle, bovine…”
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Fluorescence based studies on the interaction and characterization of surface-active ionic liquids with polarity sensitive intramolecular charge transfer probe by Ray, Dhiman, Chamlagai, Dipak, Kumar, Sugam, Aswal, Vinod K., Mitra, Sivaprasad

“…Surface-active ionic liquids (SAILs) are of tremendous interest in recent times due to their improved application in the field of food, detergent, and health…”
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Structure and stability of biodegradable polymer nanoparticles in electrolyte solution by Saha, Debasish, Kumar, Sugam, Ray, Debes, Mata, Jitendra, Aswal, Vinod K

“…•Structure and stability of PLGA and PEG-PLGA nanoparticles have been studied.•SANS, DLS, and ζ-potential have been used for characterization.•PLGA forms…”
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Dynamically arrested micelles in a supercooled sugar urea melt by Gawali, Santosh L., Zhang, Mingming, Kumar, Sugam, Aswal, Vinod K., Danino, Dganit, Hassan, Puthusserickal A.

“…Micelles are nanoscopic, dynamic, equilibrium structures formed by the association of amphiphiles in a liquid. To date, freezing of disordered micelles…”
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Fluorescence Resonance Energy Transfer, Small-Angle Neutron Scattering, and Dynamic Light Scattering Study on Interactions of Gemini Surfactants Having Different Spacer Groups with Protein at Various Regions of Binding Isotherms by Halder, Sayantan, Kumari, Sunita, Kumar, Sugam, Aswal, Vinod K, Saha, Subit K

“…The binding interactions of three gemini surfactants having different spacer groups (12-4-12, 12-8-12, and 12-4­(OH)-12) with a high concentration (150 μM) of…”
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Small-angle neutron scattering study of differences in phase behavior of silica nanoparticles in the presence of lysozyme and bovine serum albumin proteins by Yadav, Indresh, Kumar, Sugam, Aswal, V K, Kohlbrecher, J

“…The differences in phase behavior of anionic silica nanoparticles (88 Å) in the presence of two globular proteins [cationic lysozyme (molecular weight (MW)…”
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Probing stability of the charge-reversed nanoparticles in electrolyte and surfactant solutions by Singh, Himanshi, Kumar, Sugam, Aswal, Vinod K.

“…[Display omitted] •Silica nanoparticles show reentrant behavior with multivalent salt.•Re-entrant phase appears due to charge reversal of nanoparticles.•SANS…”
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Unveiling the Electrostatically Driven Collapsing and Relaxation of Polyelectrolyte–Colloid Complexes: A Tunable Pathway to Colloidal Assembly by Mehta, Swati, Bahadur, Jitendra, Kumar, Ashwani, Kumar, Sugam, Sen, Debasis

“…Polyelectrolyte–colloid (PEC) complexes, ubiquitous across diverse fields, exhibit remarkable phase transitions, mimicking intricate biological assemblies…”
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Competing Effects of Temperature and Polymer Concentration on Evolution of Re-entrant Interactions in the Nanoparticle-Block Copolymer System by Kumar, Sugam, Kohlbrecher, Joachim, Aswal, Vinod K.

“…An interesting evolution of the re-entrant interaction has been observed in an anionic silica nanoparticle (NP)-block copolymer (P85) dispersion due to…”
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Mixed Aggregates of Surface-Active Ionic Liquids and 14-2-14 Gemini Surfactants in an Aqueous Medium as Fluid Scaffolds for Enzymology of Cytochrome‑c by Singh, Manpreet, Kumar, Sugam, Aswal, Vinod Kumar, Kang, Tejwant Singh

“…The aggregation behavior of the surface-active ionic liquid (SAIL), 3-(2-(hexadecyloxy)-2-oxoethyl)-1-methyl-1H-imidazol-3-ium chloride, [C16Emim]­[Cl], and a…”
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Interplay of interactions for different pathways of the fractal aggregation of nanoparticles by Kumar, Sugam, Saha, Debasish, Kohlbrecher, Joachim, Aswal, Vinod K.

“…[Display omitted] •Interplay of interactions during aggregation of charged nanoparticles has been studied.•Aggregation of nanoparticles has been induced by…”
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Modifications in surfactant-dependent phase behavior of colloidal nanoparticles under charge reversal by Ray, Debes, Kumar, Sugam, Saha, Debasish, Aswal, Vinod K.

“…[Display omitted] •Nanoparticle-surfactant phase behaviors have been modified using multivalent ions.•SANS and DLS have been used to probe the system.•Addition…”
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