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Nicolas Théodore Saussure: Contributions to chemistry and physical chemistry
Jaime Wisniak

Abstract: Nicolas Théodore de Saussure (1767-1845) is well recognized for his pioneering work about plant physiology and the interaction between plants, soil, and atmosphere. Here we describe some of his findings in chemistry and physical chemistry, in particular the p

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Alexandre Édouard Baudrimont: Crystallography, colloids, aqua regia
Jaime Wisniak

Abstract: Alexander Édouard Baudrimont (1806-1880) was a French physician and pharmacist that carried on fundamental research on a wide variety of subjects, among them, philosophy of science, linguistic, colloidal chemistry, cosmology, crystallography, mechanics of

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Aplicación de la espectroscopia infrarroja y técnicas de reconocimiento de patrones en la caracterización de aditivos de la industria del petróleo

Resumen: Los aditivos químicos son ampliamente utilizados en la industria del petróleo; éstos varían de acuerdo al proceso tecnológico en los que están involucrados según su funcionalidad. En su caracterización se determinan un conjunto de propiedades físico- químicas

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Chemical composition and biological activities of essential oil from turmeric (Curcuma longa L.) rhizomes grown in Amazonian Ecuador

Abstract: Turmeric (Curcuma longa L.) is a rhizomatous herbaceous perennial plant widely cultivated in the tropical and subtropical regions of the world. The essential oil from rhizomes has many pharmacological activities reported. The present paper reports the chemica

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Chemical composition and biological activities of essential oil from lemongrass(Cympopogon citratus [D.C.] Stapf.) leaves grown in Amazonian Ecuador

Abstract: Cymbopogon citratus (D.C.) Stapf., commonly known as lemongrass or “hierba luisa”, is widely cultivated in many tropical and subtropical regions due to its aromaticand medicinal properties. The essential oil from leaves has many pharmacological activities rep

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Caracterización de aceite extraído del fruto de Cocos nucifera obtenido a escala de laboratorio

Resumen: El aceite de coco es uno de los componentes del Cocos nucifera L. con mayor interés para la salud humana. A este aceite se le ha reportado varios efectos farmacológicos como actividad hipotensora, neuroprotectora, anticonvulsiva, mejora del funcionamiento cog

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Determinación cuantitativa de antioxidantes fenólicos en un lubricante de refrigeración por espectroscopía infrarroja

Resumen: Algunos aceites lubricantes están compuestos por aditivos antioxidantes fenólicos; garantizar la concentración adecuada de éstos asegura una operación eficiente de la maquinaria y su durabilidad. El objetivo del trabajo fue la determinación de aditivos fenóli

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Désiré Jean Baptiste Gernez: Metastable saturation, crystallization, and triboluminiscence
Jaime Wisniak

Resumen: Desiré Gernez was a prolific French physicist and chemist that studied the phenomenon of rotatory power of substances in different states of aggregation. He found that this property was a molecular phenomenon and that the liquid molecules vaporized without a

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Dmitri Ivanovich Mendeleev (1834 – 1907), Prominent Russian Scientist. References to His Great Scientific Achievements in the Literature between 1871 and 1917
Aleksander Sztejnberg

Abstract: In this article, the author reviews literature concerning the great Mendeleev’s achievements in the seventies of the XIX century, i.e. discovery of the periodic law and fulfillment of his early predictions of unknown elements. Special attention was paid to th

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Louis Henry: The Henry reaction and other organic syntheses
Jaime Wisniak

Abstract: Louis Henry (1834-1913) was a Belgian chemist having a sharp deductive reasoning in organic chemistry, which led him to synthesize hundreds of new compounds in a wide range of functionalities. He isolated pure berberine from the roots of Berberis vulgaris, de

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Immortal fame of the Swedish apothecary and chemist: Carl Wilhelm Scheele (1742-1786) in the literature between the 19th and 21th centuries
Aleksander Sztejnberg

Abstract: In this article the literature on Carl Wilhelm Scheele (1742-1786) is reviewed, including books on chemistry and the history of chemistry, published between the 18th and the 21st century in different countries in order to: 1) familiarize readers with the name

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Aleksandr Porfiryevich Borodin (1833-1887) ‒ eminent Russian chemist and outstanding composer
Aleksander Sztejnberg

Abstract: In this article, a literature concerning A.P. Borodin’s life and his activity as the chemist and composer has been reviewed. Special attention has been paid to the references to his life and achievements in chemistry in 1881 – 2012 as well as his chemical wor

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