Alexander von Humboldt

Certain species of insects, arachnids, and reptiles, most notably the gecko lizards, have micro‐ or nanoscale fibril arrays on their footpads that function as high‐performance dry adhesives, allowing them to effortlessly climb on diverse surfaces. Such remarkable attachment ability is based on van der Waals and capillary forces, and the…

Certain species of insects, arachnids, and reptiles, most notably the gecko lizards, have micro‐ or nanoscale fibril arrays on their footpads that function as high‐performance dry adhesives, allowing them to effortlessly climb on diverse surfaces. Such remarkable attachment ability is based on van der Waals and capillary forces, and the…

Certain species of insects, arachnids, and reptiles, most notably the gecko lizards, have micro‐ or nanoscale fibril arrays on their footpads that function as high‐performance dry adhesives, allowing them to effortlessly climb on diverse surfaces. Such remarkable attachment ability is based on van der Waals and capillary forces, and the…

Since adipic acid is one of the building blocks for the production of nylon‐6,6 by polycondensation with hexamethylene diamine, it is the industrially most important dicarboxylic acid.1 In commercial processes adipic acid is mainly synthesized by the nitric acid oxidation of a mixture of cyclohexanol and cyclohexanone (so‐called KA oil)…

Introduction The electronic properties of olefins that are conjugated with a carbonyl group are altered by modifications at the carbonyl group. In this context, the formation of eniminium ions from α,β‐unsaturated aldehydes has had a major impact on the development of organocatalytic reactions.1 Kindled by the pioneering studies of MacMillan…

Introduction The electronic properties of olefins that are conjugated with a carbonyl group are altered by modifications at the carbonyl group. In this context, the formation of eniminium ions from α,β‐unsaturated aldehydes has had a major impact on the development of organocatalytic reactions.1 Kindled by the pioneering studies of MacMillan…

Prof. Dr. Mateusz Marianski Corresponding Author E-mail address: mmarians@hunter.cuny.edu http://orcid.org/0000-0002-6566-9931 Department of Chemistry and Biochemistry, Hunter College, 695 Park Ave, 10065 New York, NY, USA The Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 5th Ave, New York, NY, 10016 USASearch for more papers…

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SMITHSONIANMAG.COM | March 24, 2020, 7:20 a.m. Many of his new ideas simply became an accepted part of what we know about this planet; others were superseded by his colleagues and successors. However, between the 1820s and 1850s Alexander von Humboldt was one of the most widely admired public figures…

Ultrafast Gel Fabrication. Credit: Ran DU et al. Matter 2020. Electrocatalysis is extensively involved in many important energy-related processes such as the oxygen reduction reaction (ORR) for fuel cells, the hydrogen evolution reaction (HER) for green hydrogen production, and the oxygen evolution reaction (OER) for metal-air batteries. Noble metal aerogels…