Моделирование лондонского текста в повести Е. И. Замятина "Островитяне"

Статья посвящена анализу лондонского текста русской культуры первой половины ХХ в. на материале повести Е. И. Замятина "Островитяне". Впервые образ города рассматривается сквозь призму модернистской поэтики. Лондон как центр научного, рационалистического метода познания становится воплощением идеологии модернизма. Это дает возможность говорить о многоуровневой структуре восприятия города в рамках русской ментальности. В статье показывается, как образ столицы западной цивилизации усваивается русским сознанием и включается в общерусский литературный и культурный контекст

Natural gum-assisted phthalocyanine immobilization in electroactive nanocomposites: Physicochemical characterization and sensing applications

Natural gums have been traditionally applied in cosmetics and the food industry, mainly as emulsification agents. Due to their biodegradability and excellent mechanical properties, new technological applications have been proposed involving their use with conventional polymers forming blends and composites. In this study, we take advantage of the polyelectrolyte character exhibited by the natural gum Chicha (Sterculia striata), extracted in the Northeastern region of Brazil, to produce electroactive nanocomposites. The nanocomposites were fabricated in the form of ultrathin films by combining a metallic phthalocyanine (nickel tetrasulfonated phthalocyanine, NiTsPc) and the Chicha gum in a tetralayer architecture, in conjunction with conventional polyelectrolytes. The presence of the gum led to an efficient adsorption of the phthalocyanine and enhanced the electrochemical response of the films. Upon combining the electrochemical and UV-vis absorption data, energy diagrams of the Chicha/NiTsPc-based system were obtained. Furthermore, modified electrodes based on gum/phthalocyanine films were able to detect dopamine at concentrations as low as 10(-5) M