Przeglądaj Instytut Chemii Fizycznej PAN według tytułu
Wyświetlanie pozycji 120-139 z 169
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Scaling equation for viscosity of polydimethylsiloxane in ethyl acetate: From dilute to concentrated solutions
(Elsevier, 2020)Rheology of polymer solutions suffers from lack of universal model of viscosity applicable across wide range of concentrations. Here we build such a model on the basis of measured viscosity of polydimethylosiloxane (PDMS) ... -
Scaling of submicrometric Turing patterns in concentrated growing systems
(American Physical Society, 2018-09-18)The wavelength of a periodic spatial structure of Turing type is an intrinsic property of the considered reaction-diffusion dynamics and we address the question of its control at the microscopic scale for given dynamical ... -
Scouting for strong light–matter coupling signatures in Raman spectra
(Royal Society of Chemistry, 2021)Strong coupling between vibrational transitions and a vacuum field of a cavity mode leads to the formation of vibrational polaritons. These hybrid light–matter states have been widely explored because of their potential ... -
Searching for correlations between geometric and spectroscopic parameters of intramolecular hydrogen bonds in porphyrin-like macrocycles
(Royal Society of Chemistry, 2022-09-11)Chemical bond lengths and angles are characteristic structural parameters of a molecule. Similarly, the frequencies of the vibrational modes and the NMR chemical shifts are unique “chemical fingerprints” specific to a ... -
Selective (sono)photocatalytic cleavage of lignin-inspired β–O–4 linkages to phenolics by ultrasound derived 1-D titanate nanomaterials
(Elsevier B.V., 2024-03-02)Lignin to value-added aromatic compounds is still an open challenge, since the selective cleavage of the linkages interconnecting the aromatic molecules, especially the β-O-4 ones, is not efficiently achieved yet. Herein, ... -
Selective Impedimetric Chemosensing of Carcinogenic Heterocyclic Aromatic Amine in Pork by dsDNA-Mimicking Molecularly Imprinted Polymer Film-Coated Electrodes
(American Chemical Society Publications, 2021-11-29)Inspired by the easy intercalation of quinoxaline heterocyclic aromatic amines (HAAs) in double-stranded DNA (dsDNA), we synthesized a nucleobase-functionalized molecularly imprinted polymer (MIP) as the recognition unit ... -
Selective Oxidation of 5-Hydroxymethylfurfural to 2,5- Diformylfuran by Visible Light-Driven Photocatalysis over In Situ Substrate-Sensitized Titania
(Wiley-VCHGmbH, 2021)Solar energy-driven processes for biomass valorization are priority for the growing industrialized society. To address this challenge, efficient visible light-active photocatalyst for the selective oxidation of biomass-derived ... -
Selective Synthesis of Bismuth or Bismuth Selenide Nanosheets from a Metal Organic Precursor: Investigation of their Catalytic Performance for Water Splitting
(American Chemical Society, 2021-02-01)The development of cost-effective, functional materials that can be efficiently used for sustainable energy generation is highly desirable. Herein, a new molecular precursor of bismuth (tris(selenobenzoato)bismuth(III), ... -
Sensitive, Efficient and Portable Analysis of Molecular Exchange Processes by Hyperpolarized Ultrafast NMR
(Wiley-VCH GmbH, 2022-05-02)Molecular exchange processes are ubiquitous in nature. Here, we introduce a method to analyze exchange processes by using low-cost, portable, single-sided NMR instruments. The inherent magnetic field inhomogeneity of the ... -
Shape Transformations of Vesicles Induced by Their Adhesion to Flat Surfaces
(American Chemical Society, 2020)The shape transformations of lipid vesicles induced by the adhesion to a flat surface is investigated. We perform the calculations within the framework of the Helfrich spontaneous curvature model. The calculations were ... -
Simulation and analysis of the relaxation dynamics of a photochromic furylfulgide
(Royal Society of Chemistry, 2022-05-15)Furylfulgides, a class of photochromic organic compounds, show a complex system of photoinduced reactions. In the present study, the excited-state dynamics of the E α and E β isomers of a representative furylfulgide is ... -
Simulation and Analysis of the Transient Absorption Spectrum of 4-(N,N-Dimethylamino)benzonitrile (DMABN) in Acetonitrile
(American Chemical Society (ACS), 2021-09-22)4-(N,N-Dimethylamino)benzonitrile (DMABN) is a well-known model compound for dual fluorescence—in sufficiently polar solvents, it exhibits two distinct fluorescence emission bands. The interpretation of its transient ... -
Single-molecule brightness analysis for the determination of anticancer drug interactions with DNA
(Royal Society of Chemistry, 2020)Anthracyclines are one of the most studied anticancer drugs approved for medical treatment. The equilibrium constant (K) of the reaction between these drugs with DNA in both in vitro and in vivo experiments lacks consensus. ... -
Size-Dependent Interaction of Amyloid β Oligomers with Brain Total Lipid Extract Bilayer - Fibrillation Versus Membrane Destruction
(American Chemical Society, 2019-07-21)Amyloid β, Aβ(1-42), is a component of senile plaques present in the brain of Alzheimer's disease patients and one of the main suspects responsible for pathological consequences of the disease. Herein, we directly visualize ... -
Solventless synthesis of nanospinel Ni1−xCoxFe2O4 (0 ≤ x ≤ 1) solid solutions for efficient electrochemical water splitting and supercapacitance
(Royal Society of Chemistry, 2021-09-20)The formation of solid solutions represents a robust strategy for modulating the electronic properties and improving the electrochemical performance of spinel ferrites. However, solid solutions have been predominantly ... -
Sonocatalytic Activity of Porous Carbonaceous Materials for the Selective Oxidation of 4-Hydroxy-3,5-dimethoxybenzyl Alcohol
(MDPI, 2024-03-23)Selective oxidation, which is crucial in diverse chemical industries, transforms harmful chemicals into valuable compounds. Heterogeneous sonocatalysis, an emerging sustainable approach, urges in-depth exploration. In this ... -
Spectroelectrochemical Behaviour of 1,4-Dimethoxypillar[5] arene (P5A) and its Monomer in Different Organic Solvents
(Wiley, 2021-03-18)The spectroelectrochemical response of the macrocyclic compound 1,4-dimethoxypillar[5]arene (P5A) and its monomer 1,4-dimethoxybenzene was investigated using cyclic voltammetry combined with UV-Vis spectroscopy. The influence ... -
Stimuli-Responsive Langmuir Films Composed of Nanoparticles Decorated with Poly(N-isopropyl acrylamide) (PNIPAM) at the Air/Water Interface
(American Chemical Society, 2023-05-31)The nanotechnology shift from static toward stimuli-responsive systems is gaining momentum. We study adaptive and responsive Langmuir films at the air/water interface to facilitate the creation of two-dimensional (2D) ... -
Stochastic approach to Fisher and Kolmogorov, Petrovskii, and Piskunov wave fronts for species with different diffusivities in dilute and concentrated solutions
(2020-11-15)A wave front of Fisher and Kolmogorov, Petrovskii, and Piskunov type involving two species A and B with different diffusion coefficients and is studied using a master equation approach in dilute and concentrated solutions. ... -
A Straightforward Method for the Generation of Hyperpolarized Orthohydrogen with a Partially Negative Line
(Wiley, 2024)The hydrogen molecule, which exists in two spin isomers (ortho- and parahydrogen), is a highly studied system due to its fundamental properties and practical applications. Parahydrogen is used for Nuclear Magnetic Resonance ...