Przeglądaj Instytut Chemii Fizycznej PAN według afiliacji "Institute of Physical Chemistry, Polish Academy of Sciences"
Wyświetlanie pozycji 1-20 z 130
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Additive-free photo-assisted selective partial oxidation at ambient conditions of 5-hydroxymethylfurfural by manganese (IV) oxide nanorods
(Elsevier, 2019)The valorization of natural and renewable resources, like lignocellulosic biomass, towards value-added chemicals by low energy and economically viable processes still remains a global research and technological ... -
Alzheimer's disease-related amyloid β peptide causes structural disordering of lipids and changes the electric properties of a floating bilayer lipid membrane
(Royal Society of Chemistry, 2020-06-27)Neurodegeneration in Alzheimer's disease is associated with disruption of the neuronal cell membrane by the amyloid β (Aβ) peptide. However, the disruption mechanism and the resulting changes in membrane properties remain ... -
Ambient-temperature porogen-free method for preparation of silica-based macroporous materials
(Elsevier, 2021-12-01)The presented work focuses on the synthesis of silica-based macroporous aggregates composed of silica nanoparticles using a template-free method. To improve the mechanical strength of the prepared fractal-like aggregates, ... -
Amyloid β interaction with model cell membranes – What are the toxicity-defining properties of amyloid β?
(Elsevier B.V., 2022-01-21)Disruption of the neuronal membrane by toxic amyloid β oligomers is hypothesized to be the major event associated with Alzheimer's disease's neurotoxicity. Misfolding of amyloid β is followed by aggregation via different ... -
Anti-phase Oscillations and Nonuniform Stationary State in Coupled Glycolytic Oscillators
(Society of Physical Chemists of Serbia, 2022-12-13)Our study is focused on experimental observations of NADH oscillations and nonuniform stationary states in glycolytic oscillatory reaction. Glycolysis occurs using yeast extract and glucose solution reaction in a two ... -
Assembly of Helical Structures in Systems with Competing Interactions under Cylindrical Confinement
(American Chemical Society, 2019)The behavior under confinement of nanoparticles interacting with the short-range attraction and long-range repulsion potential is studied by means of Monte Carlo simulations in the grand canonical ensemble. The study is ... -
Better red than dead: On the influence of Oil Red O dye on complexity of evolution of a camphor-paraffin droplet on the water surface
(2018)Droplets of paraffin can show self-motion when powered by camphor. We investigated the motion of such droplets when varying concentrations of camphor and the dye, Oil Red O, as well as the droplet volume. Experiments have ... -
Bimetallic nanocatalysts supported on graphitic carbon nitride for sustainable energy development: the shape-structure–activity relation
(Royal Society of Chemistry, 2021-01-26)The catalytic performance of metal nanoparticles (NPs), including activity, selectivity, and durability, depends on their shape and structure at the molecular level. Consequently, metal NPs of different size and shape, ... -
Bimetallic nanocatalysts supported on graphitic carbon nitride for sustainable energy development: the shape-structure–activity relation
(Royal Society of Chemistry, 2021-01-19)The catalytic performance of metal nanoparticles (NPs), including activity, selectivity, and durability, depends on their shape and structure at the molecular level. Consequently, metal NPs of different size and shape, ... -
Bio-dee synthesis and dehydrogenation coupling of bio-ethanol to bio-butanol over multicomponent mixed metal oxide catalysts
(MDPI, 2021-05-22)Within the Waste2Fuel project, innovative, high-performance, and cost-effective fuel production methods from municipal solid wastes (MSWs) are sought for application as energy carriers or direct drop-in fuels/chemicals in ... -
A camphene‑camphor‑polymer composite material for the production of superhydrophobic absorbent microporous foams
(Springer Nature, 2022)In a recently published paper (doi.org/10.3390/molecules26113116) on self-propelled motion of objects on the water surface, we described a novel surface-active plastic material obtained by dissolution of camphor and ... -
Can A Network of Chemical Oscillators Help to Diagnose Schizophrenia?
(Old City Publishing, Inc., 2020)Schizophrenia is one of the most common mental disorders, however it is difficult to detect and can remain undiagnosed for years. It is believed that information if a patient is ill can be extracted from EEG signals recorded ... -
Capacitance response and concentration fluctuations close to ionic liquid-solvent demixing
(Elsevier, 2022-01)We investigate the concentration fluctuations in a simple model of electrolyte (two positively and negatively charged Lennard-Jones spheres in a solution of an uncharged Lennard-Jones liquid) confined between electrodes ... -
Capillary Ionization and Jumps of Capacitive Energy Stored in Mesopores
(American Chemical Society, 2021-04-30)We study ionic liquid–solvent mixtures in slit-shaped nanopores wider than a few ion diameters. Using a continuum theory and generic thermodynamic reasoning, we reveal that such systems can undergo a capillary ionization ... -
Catalytic Ketonization over Oxide Catalysts (Part XIV): The Ketonization and Cross-Ketonization of Anhydrides, Substituted Acids and Esters
(MDPI, 2024-01-24)A series of 20 wt.% MO2 /S catalysts (where M = Ce, Mn or Zr and S = SiO2 or Al2 O3 ) were prepared using various precursors of the active phases. The resulting catalysts were characterized using different methods (XRD, ... -
Characterization of charge transfer excited states in [2Fe–2S] iron–sulfur clusters using conventional configuration interaction techniques
(Springer, 2020-06-22)The experimental UV–Vis spectra of the biologically relevant [2Fe–2S] iron–sulfur clusters feature typically three bands in the 300–800 nm range. Based on ground-state orbitals and using the one electron transition picture, ... -
Charging dynamics of electrical double layers inside a cylindrical pore: predicting the effects of arbitrary pore size
(Royal Society of Chemistry, 2021-12-06)Porous electrodes are found in energy storage devices such as supercapacitors and pseudocapacitors. However, the effect of electrode-pore-size distribution on their energy storage properties remains unclear. Here, we develop ... -
Chitosan-Based N‑Doped Carbon Materials for Electrocatalytic and Photocatalytic Applications
(American Chemical Society, 2020)Chitosan-derived N-doped carbon materials are attractive candidates for the preparation of catalysts with a wide range of applications. Chitosan is a nitrogen rich (∼7 wt %) renewable biomass resource derived from seafood ... -
Chromophore hydrolysis and release from photoactivated rhodopsin in native membranes
(National Academy of Sciences USA, 2022-11-02)For sustained vision, photoactivated rhodopsin (Rho*) must undergo hydrolysis and release of all-trans-retinal, producing substrate for the visual cycle and apo-opsin available for regeneration with 11-cis-retinal. The ... -
CO2 Hydrogenation to Methane over Ni-Catalysts: The Effect of Support and Vanadia Promoting
(MDPI, 2021-03-28)Within the Waste2Fuel project, innovative, high-performance, and cost-effective fuel production methods are developed to target the “closed carbon cycle”. The catalysts supported on different metal oxides were characterized ...