A5087568662- Electrostatics and Colloid Interactions
- Microfluidic and Bio-sensing Technologies
- Polymer Surface Interaction Studies
- Microfluidic and Capillary Electrophoresis Applications
- Protein Interaction Studies and Fluorescence Analysis
- Surfactants and Colloidal Systems
- Gold and Silver Nanoparticles Synthesis and Applications
- Blood properties and coagulation
- Layered Double Hydroxides Synthesis and Applications
- Mesoporous Materials and Catalysis
- Force Microscopy Techniques and Applications
- Electrochemical Analysis and Applications
- Acoustic Wave Resonator Technologies
- Minerals Flotation and Separation Techniques
- Coagulation and Flocculation Studies
- Supercapacitor Materials and Fabrication
- Catalysis for Biomass Conversion
- Surface Roughness and Optical Measurements
- Iron oxide chemistry and applications
- Catalytic Processes in Materials Science
- Nanoparticle-Based Drug Delivery
- Electrophoretic Deposition in Materials Science
- Photodynamic Therapy Research Studies
- Characterization and Applications of Magnetic Nanoparticles
- Electrochemical sensors and biosensors
Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences
2016-2025
Polish Academy of Sciences
2007-2020
Deposition kinetics of polymer particles characterized by a prolate spheroid shape on gold sensors modified the adsorption poly(allylamine) was investigated using quartz crystal microbalance and atomic force microscopy. Reference measurements were also performed for spherical same diameter as shorter axis. Primarily, frequency dissipation shifts various overtones measured function time. These kinetic data transformed into dependence complex impedance, scaled up inertia upon particle size to...
A comprehensive approach enabling a quantitative interpretation of poly-l-arginine (PARG) adsorption kinetics at solid/electrolyte interfaces was developed. The first step involved all-atom molecular dynamics (MD) modeling physicochemical characteristics yielding PARG molecule conformations, its contour length, and the cross-section area. It also shown that molecules, even in concentrated electrolyte solutions (100 mM NaCl), assume largely elongated shape with an aspect ratio 36. Using...
Adsorption kinetics of human serum albumin (HSA) on silica substrates was studied using optical waveguide lightmode spectroscopy (OWLS) and quartz microbalance (QCM) techniques. Measurements were performed at pH 3.5, 5.6, 7.4 for various bulk suspension concentrations ionic strengths. The diffusion coefficient measurements showed that 3.5 the HSA molecules are stable NaCl from 10–3 to 0.15 M. This allowed us precisely determine mass transfer rate coefficients OWLS QCM cells. experimental...
The adsorption of fibrinogen on polystyrene latex particles was studied using the concentration depletion method combined with AFM detection residual protein after adsorption. Measurements were carried out for a pH range 3.5-11 and an ionic strength 10(-3)-0.15 M NaCl. First, bulk physicochemical properties particle suspension characterized this strength. zeta potential number uncompensated (electrokinetic) charges determined from microelectrophoretic measurements. It revealed that molecules...
Human serum albumin (HSA) corona formation at polymer microparticles of a spheroidal shape was studied using dynamic light scattering and laser Doppler velocimetry (LDV). Physicochemical characteristics the comprising, zeta potential isoelectric point were determined as function pH for various ionic strengths. Analogous particles carried out. The adsorption on monitored by electrophoretic mobility measurements stability HSA functionalized particle suspensions under pHs their electrokinetic...
The adsorption kinetics of human serum albumin (HSA) on bare and poly-L-arginine (PARG)-modified silica substrates were investigated using reflectometry atomic force microscopy (AFM). Measurements carried out at various pHs, flow rates concentrations in the 10 150 mM NaCl solutions. mass transfer rate constants maximum protein coverages determined for pH 4.0 theoretically interpreted terms hybrid random sequential model. These results used as reference data analysis larger pHs. It was shown...
Deposition kinetics of positively charged polymer microparticles, characterized by prolate spheroid shape, at silica and gold sensors was investigated using the quartz microbalance (QCM) technique. Reference measurements were also performed for particles spherical shape same mass as spheroids. Primarily, frequency bandwidth shifts various overtones measured a function time. It is shown that ratio these signals close to unity all overtones. These results converted dependence shift on particle...
A comprehensive method consisting of theoretical modeling and experimental atomic force microscopy (AFM) measurements was developed for the quantitative analysis nanoparticle layer topography. Analytical results were derived particles various shapes such as cylinders (rods), disks, ellipsoids, hemispheres (caps), etc. It shown that all particles, their root-mean-square (
The adsorption of recombinant human serum albumin (rHSA) on negatively charged polystyrene latex micro-particles was studied at pH 3.5 and the NaCl concentration range 10–3 to 0.15 M. electrophoretic mobility monotonically increased with in suspension. coverage adsorbed quantitatively determined using depletion method, where residual protein by electrokinetic measurements AFM imaging. It shown that irreversible. Its maximum varied between 0.7 mg m–2 for M 1.3 NaCl. latter value matches...