Materials Literature
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Nucleation is an out-of-equilibrium process that can be strongly affected by the presence of external fields. In this paper, we report a simple extension of classical nucleation theory to systems submitted to an homogeneous shear flow. The theory involves accounting for the anisotropy of the critical nucleus formation…
In this report, chitosan (CS) encapsulated zinc oxide (ZnO) hybrid composite was prepared by chemical precipitation method. The CS-ZnO composite was characterized by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis (TGA), transmission electron microscopy, and zeta potential. The c…
When protein crystals are submicrometre-sized, X-ray radiation damage precludes conventional diffraction data collection. For crystals that are of the order of 100 nm in size, at best only single-shot diffraction patterns can be collected and rotation data collection has not been possible, irrespective of the diffract…
In macromolecular X-ray crystallography, typical data sets have substantial multiplicity. This can be used to calculate the consistency of repeated measurements and thereby assess data quality. Recently, the properties of a correlation coefficient, CC1/2, that can be used for this purpose were characterized and it was…
Abstract A smart hyperthermia nanofiber is described with simultaneous heat generation and drug release in response to ‘on‐off’ switching of alternating magnetic field (AMF) for induction of skin cancer apoptosis. The nanofiber is composed of a chemically‐crosslinkable temperature‐responsive polymer with an anticancer…
Wydział Chemii
53.020.20
We have investigated characteristics of anatase TiO2 thin film surfaces etched by a capacitively coupled radio frequency N2 plasma from the viewpoint of both an experiment and a simulation. The result obtained with use of the N2 plasma is compared with that obtained with use of the He plasma. The experimental O/Ti rat…
Les travaux réalisés dans le cadre de la thèse avaient pour but la synthèse de nouveaux fluorophores basés sur les unités BODIPYs et hydroxyphényl-s-triazines. Pour être utilisées comme sondes efficaces dans des applications en chimie et en biologie, les chromophores doivent présenter une forte brillance et des rendem…
Les composants hyperfréquences embarqués dans des satellites utilisent actuellement l’encapsulation hermétique dans des boîtiers métalliques ou céramiques. La très forte amélioration des matériaux organiques en termes de dégazage et d’impureté ionique notamment rend possible l’utilisation de solutions quasi-hermétique…
A B ST R A C T Force (F) and stiffness (K)were measured in glycerinated psoas fibers at various calcium levels with 0, 10, 20, and 30 mM orthophosphate (Pi) added to the bathing solutions. The concentrations of bathing solution constituents were as follows: 110 mM potassium, 40 mM sodium, 4 mM MgATP, 10 mM total EGTA,…
Abstract. Collagen XII has a short collagenous tail and a very large, three-armed NC3 domain consisting primarily of fibronectin type III repeats. Differential splicing within this domain gives rise to a large (320 kD) and a small (220 kD) subunit; the large but not the small can carry glycosaminoglycan. To investigat…
Abstract. The availability of the ratiometric Caz+ indicator dyes, fura-2, and indo-1, and advances in digital imaging and computer technology have made it possible to detect Cal+ changes in single cells with high temporal and spatial resolution. However, the optical properties of the conventional epifluorescence micr…
ABSTRACT These experiments examine changes in the agonist-induced conductance that occur when the agonist-receptor complex is perturbed. Voltageclamped Electrophorus electroplaques are exposed to the photoisomerizable agonist trans-Bis-Q A 1-hs laser flash photoisomerizes some trans-Bis-Q molecules bound to receptors;…
Abstract. Collagen VII is the major structural constituent of anchoring fibrils in the skin. It is synthesized as a procollagen that is larger than the collagen deposited in the tissue. In this study, we investigated the conversion of procollagen VII to collagen VII in human skin and in cutaneous cells in vitro and id…
ABSTRACT We have synthesized a model local anesthetic (LA), N-(2-di-N-butylaminoethyl)-4-azidobenzamide (DNB-AB), containing the photoactivatable aryl azido moiety, which is known to form a covalent bond to adjacent molecules when
A B S T R A C T It has been determined that the bag cells of Aplysia californica produce two polypeptide species that comigrate on electrophoretic gels containing sodium dodecyl sulfate. By this separation procedure both species can be assigned a molecular weight of approximately 6,000. One of these molecules has an R…
Abstract. To study genes that may be crucial for the male germ cell development of Drosophila we screened a cDNA expression library with a polyclonal antiserum against testis proteins of Drosophila hydei. We identified a cDNA fragment that exhibited a complete sequence similarity with the cDNA of the laminin B2 chain,…
ABSTRACT A preliminary investigation of the distribution ofcellular calcium in Amoeba proteus was undertaken. Total cellular calcium under control conditions was found to be 4.59 mmol/kg of cells. When the external Ca ++ concentration is increased from the control level of 0.03 to 20 mM, a net Ca ++ influx results wit…
ABSTRACT Acetylcholine (ACh) was applied iontophoretically to the innervated face of isolated eel electroplaques while the membrane potential was being recorded intracellularly. At the resting potential (about-85 mV) application of the drug produced depolarizations (ACh potentials) of 20 mV or more which became smalle…