Category: Uncategorized

D-AMINO ACIDS IN METEORITES. "Serine and threonine, usually considered to be earthly contaminants, were conspicuously absent in the samples...diamino acids was identified in the Murchison meteorite." https://lnkd.in/e6T2vir View in LinkedIn

FRAGMENT IN NATURE continues from last weekend about the ability of plants to smell, and defend themselves. What exact signals from the environment the plants pick up, how nuanced those signals are, and how the plants react to those signals, is a topic that has gained considerable knowledge in recent decades, in partly thanks to molecular biology and genetic techniques. View in LinkedIn

Mercury has no place in 21st century dentistry. https://lnkd.in/exrAcDp View in LinkedIn

THE RATIO AT NANOSCALE (surface are:volume). 1 cubic meter cube = 6 m(2) surface area; 0.1 m cube = 60 m(2); 0.1 m cube = 600 m(2); 0.001 m cube = 6000 m(2); and nano or 10(-9) m cube = 6000 km(2). Q.E.D. https://lnkd.in/eEZQ4DA View in LinkedIn

ILLUSTRATION. "One prime example of surface area to volume ratio at the nanoscale is gold as a nanoparticle. At the macroscale, gold is an inert element, meaning it does not react with many chemicals, whereas at the nanoscale, gold nanoparticles become extremely reactive and can be used as catalysts to speed up reactions." https://lnkd.in/eVGK7pM View in LinkedIn

(SURFACE AREA:VOLUME) ratio increases dramatically as nanoscale is approached, giving different chemical and physical properties from their macro counterparts. https://lnkd.in/eVGK7pM View in LinkedIn

SURFACE AREA. "Nanoscale materials have far larger surface areas that similar masses of large scale materials. As surface area per mass of material increases, a greater amount of the material can come into contact with surrounding materials, thus affecting reactivity." https://lnkd.in/e-N6F8s View in LinkedIn

NANO PROPERTIES. "A majority of biological processes occur at the nanoscale...these phenomena are based in "quantum effects". Properties of materials are size-dependent in this scale range." https://lnkd.in/e-N6F8s View in LinkedIn

UNUSUAL PROPERTIES of materials, either intrinsic or artificially created, represents an opportunity to exploit those properties for programmable materials or for making useful technologies. Nature provides an infinite number of examples, many of which were innocently discovered by exploring coloration and light diffraction from natural objects. https://lnkd.in/e2grmv8 View in LinkedIn

COMMON GATEWAY TO NEW PROPERTIES. "Spontaneous chiral symmetry breaking underpins a variety of areas such as subatomic physics and biochemistry, and leads to an impressive range of fundamental phenomena." https://lnkd.in/eqFnZCi View in LinkedIn