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Wyszukujesz frazę "molecules" wg kryterium: Wszystkie pola


Tytuł:
Selected small molecules as inducers of pluripotency
Autorzy:
Baranek, Małgorzata
Markiewicz, Wojciech
Barciszewski, Jan
Powiązania:
https://bibliotekanauki.pl/articles/1038727.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
reprogramming
pluripotency
small molecules
iPSCs
Opis:
The general idea of regenerative medicine is to fix or replace tissues or organs with live and patient-specific implants. Pluripotent stem cells are capable of indefinite self-renewal and differentiation into all cell types of the body. An easily accessible source of induced pluripotent stem cells (iPSCs) may allow obtaining and culturing tissues in vitro. Many approaches in the methods leading to obtain iPSCs have been tested in order to limit immunogenicity and tumorigenesis, and to increase efficiency. One of the approaches causing pluripotency is usage of small molecule compounds. It would be of great importance to assess their specific properties and reveal their new capacity to induce pluripotent stem cells and to improve reprogramming efficiency. Identification of the epigenetic changes during cellular reprogramming will extend our understanding of stem cell biology and many therapeutic applications. In this paper we discuss mainly the nucleotide derivatives, already proven or for now only putative inducers of the cells' pluripotency, that modulate the epigenetic status of the cell.
Źródło:
Acta Biochimica Polonica; 2016, 63, 4; 709-716
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution of gas molecules by their temperatures
Autorzy:
Golovkin, Boris Georgievich
Powiązania:
https://bibliotekanauki.pl/articles/1030475.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Clapeyron equation
Maxwell distribution
distribution of molecules by temperatures
gas density
gas pressure
Opis:
A formula is derived for the distribution of gas molecules over their temperatures depending on the total temperature of the gas. Formulas are proposed for the distribution of velocities and kinetic energies of gas molecules depending on the pressure and density of the gas. It is shown that these formulas are equivalent to the formulas of the corresponding Maxwell distributions, which depend only on temperature. A formula is derived for the distribution of the mean free paths of gas molecules depending only on the gas density. An example of calculating the distribution of gas molecules by their temperatures is given.
Źródło:
World Scientific News; 2020, 144; 89-102
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calcium phosphate nanoparticles for delivering synthetic drug molecules across the cell membrane
Autorzy:
Rotan, O.
Sokolova, V.
Schrader, T.
Epple, M.
Powiązania:
https://bibliotekanauki.pl/articles/285174.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
nanoparticles
cell membranes
drug molecules
Źródło:
Engineering of Biomaterials; 2014, 17, no. 128-129; 77-78
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cell adhesion molecules and their possible role in the pathology of the peripheral nerves – a review of the literature
Autorzy:
Niezgoda, Adam
Powiązania:
https://bibliotekanauki.pl/articles/552657.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Przyjaciół Medycyny Rodzinnej i Lekarzy Rodzinnych
Tematy:
cell adhesion molecules
demyelination
polyneuropathies.
Źródło:
Family Medicine & Primary Care Review; 2015, 4; 323-326
1734-3402
Pojawia się w:
Family Medicine & Primary Care Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution of the lengths of tree paths of gas molecules
Autorzy:
Golovkin, B. G.
Powiązania:
https://bibliotekanauki.pl/articles/1075713.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
distribution of molecules
gas
mean free path
pressure
radius of the molecule
temperature
Opis:
It is shown that the formula available in the literature for the distribution of the mean free paths of gas molecules, independent of pressure and temperature, produces obviously incorrect results. Accordingly, a conclusion is given for another formula for a given distribution, which depends on the size of the gas molecules, as well as temperature and pressure. In accordance with this formula, the distribution curve for oxygen at 1000 K and pressures 1 and 0.001 atm has been calculated.
Źródło:
World Scientific News; 2019, 119; 243-247
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analitical criteria of homogeneous and heterogeneous detonation of liquid energetic materials
Autorzy:
Kaim, S.
Powiązania:
https://bibliotekanauki.pl/articles/92588.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
mechanism detonation initiation
hot spots
nanopores
emission atoms and molecules
shock dissociation molecules
Opis:
Statistical theory of liquids is used to investigate mechanism of detonation initiation on fronts of flat shock waves in homogeneous liquid and in liquid containing spherical nanopores. We calculated thermodynamic parameters of liquid methane sufficient for shock dissociation of molecules at a front of a shock wave. Calculations of the average single-particle force potential show that at high pressures and temperatures atoms and molecules get emitted from the surface into a nanopore with hyper-thermal speeds. Implosion of spherically symmetric stream of molecules may lead to destruction of the molecules at impact. We explained existence of top and bottom bounds for pressure during detonation initiation in heterogeneous energetic materials. In terms of pair interaction potentials and correlation functions there are formulated criteria for boundary values of thermodynamic parameters which are required for initiation of homogeneous and heterogeneous detonations based on the "hot spot"’ mechanism.
Źródło:
Materiały Wysokoenergetyczne; 2013, T. 5; 5-13
2083-0165
Pojawia się w:
Materiały Wysokoenergetyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fabrication Of Colloidal Clusters Decorated With Dye Molecules For Potential Application As Photonic Molecules
Wytwarzanie koloidalnych klasterów zdobionych cząsteczkami barwnika do potencjalnego zastosowania jako cząsteczki fotoniczne
Autorzy:
Cho, Y. S.
Powiązania:
https://bibliotekanauki.pl/articles/356171.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
colloidal clusters
fluorescent dyes
photonic molecules
particle self-assembly
klaster koloidalny
barwniki fluorescencyjne
cząsteczki fotoniczne
Opis:
In this study, colloidal clusters decorated with fluorescent dyes were fabricated by evaporation-driven self-assembly using emulsion droplets as confining geometries. Silica microspheres were synthesized by Stober method followed by the modification with dye molecules through additional surface sol-gel reaction for the formation of thin silica shell. The surface of the resultant dye-doped silica microspheres was modified with hydrophobic silane coupling agent to disperse the particle suspension in organic solvent such as hexane. The fluorescent silica microspheres were self-assembled inside oil-in-water emulsions by evaporation-driven self-assembly for the formation of colloidal clusters, potentially applicable for photonic molecules. The clusters with fluorescent emission were observed using confocal microscope.
Źródło:
Archives of Metallurgy and Materials; 2015, 60, 2B; 1221-1225
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First-principles study on the adsorption structure of water molecules on a pyrite (100) surface
Autorzy:
Liu, Yingchao
Chen, Jianhua
Li, Yuqiong
Zhang, Junjie
Kang, Duan
Powiązania:
https://bibliotekanauki.pl/articles/1447970.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
pyrite
water molecules
adsorption
Opis:
The hydration structure of water molecule adsorption at different coverages of a monolayer on a pyrite (100) surface were simulated using the density functional theory (DFT) method. The results demonstrate that the Fe-O interaction weakens and the adsorption energy per water molecule decreases with increasing water coverage, except at a monolayer coverage of 12/12 (i.e., full coverage). H-S and H-O hydrogen bonds were formed on the nearest surface layer. When large amounts of water molecules adsorb onto the surface, the adsorbed water molecules can be divided into three layers: the layer nearest to the surface, the second nearest to the surface, and the layer farthest from the surface. The thickness of the former two layers is approximately 5.5 Å. The three layers have water densities of 1.12 g/cm3, 1.08 g/cm3, and 0.95 g/cm3, respectively, suggesting that there is a strong interaction between the pyrite surface and water molecules and the influence of surface structure on water adsorption reaches a distance of more than 10 Å. Dynamics simulations suggest that the water molecules close to the mineral surfaces are in an orderly arrangement while those far from the surface are disordered.
Źródło:
Physicochemical Problems of Mineral Processing; 2021, 57, 2; 121-130
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dendrimers: properties and applications.
Autorzy:
Klajnert, Barbara
Bryszewska, Maria
Powiązania:
https://bibliotekanauki.pl/articles/1044187.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
cascade molecules
dendrimers
PAMAM dendrimers
Opis:
Dendrimers are a new class of polymeric materials. They are highly branched, monodisperse macromolecules. The structure of these materials has a great impact on their physical and chemical properties. As a result of their unique behaviour dendrimers are suitable for a wide range of biomedical and industrial applications. The paper gives a concise review of dendrimers' physico-chemical properties and their possible use in various areas of research, technology and treatment.
Źródło:
Acta Biochimica Polonica; 2001, 48, 1; 199-208
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł

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