Sentences with phrase «when organic molecules»
Just some basics: When organic molecules (carbon, oxygen, hydrogen and nitrogen) are broken down to release energy and recycled, the hydrogen carrying electrons need to be neutralized; otherwise the entire process is acidified, like sour milk.
https://dotearth.blogs.nytimes.com/ Not exact matches
There can still be local decreases in entropy, as happens with all living organisms while they are still alive and in some other situations as, for example, when complex organic molecules are made from their constituent atoms in outer space, as now seems to be the case.
Scientists at the NASA Ames Research Center went even further in 2015 when they exposed the organic molecule pyrimidine, found in meteorites, to interstellar conditions.
«When you see something red in the outer solar system, generally that's an indication the object is covered in complex organic molecules,» says Northern Arizona University astronomer Stephen Tegler.
When the team applied the technique to a sample of the organic molecule PTCDA, not only did the molecules show up in intricate detail, an electrical signal was also detected between them (coloured green below), at exactly the locations where hydrogen bonds are present (Journal of the American Chemical Society, DOI: 10.1021 / ja104332t).
When that happens, the hybrid membrane switches from having a single channel to transport carbon dioxide, in which the molecules must go through the polymer, to two channels, in which the molecules can either move through the polymer or through the metal - organic framework highways.
OLED screens use organic molecules that emit light when an electric current is applied.
The Methods: Photochemical modeling by a Caltech team indicates that ethane, a hydrocarbon detected on Titan by both of the Voyager spacecraft and the European Infrared Space Observatory, is created when solar ultraviolet light breaks down methane, a minor component of Titan's nitrogen - rich atmosphere, into a stew of organic molecules that form a dense orange - brown smog.
When I was at Bell Labs, I was surrounded by amazing organic chemists who could cook up all kinds of interesting polymers and organic molecules that we could use to build transistors.
They also play a role in the formation of secondary organic aerosols — air pollutants produced when sunlight, organic molecules and airborne chemicals come together and interact.
Taking their cue from nature, where structurally well - defined biopolymers are the norm, e.g. in DNA and genes where slight variations to the order of a small number of organic molecules gives rise to the diverse spectrum of life, they have developed a self - sorting strategy that regulates the order molecules take when forming long chain polymers.
Recently Berkeley Lab scientists used this method to calculate the absorption spectrum and confirm what several experimental results have been hinting — that the element berkelium breaks form with its heavy element peers by taking on an extra positive charge when bound to a synthetic organic molecule.
«When lightning strikes, it acts like a mini smelter, and the organic molecules strip off oxygen from the phosphorus,» Pasek says.
Certain organic molecules become activated and react when they absorb sunlight.
Waka Nakanishi, an organic chemist at the National Institute for Materials Science in Tsukuba, Japan, has designed a nanocar with two sets of «flaps» that are intended to flutter like butterfly wings when the molecule is energized by the STM tip.
At the core of an OLED is an organic molecule that emits light when a negatively charged electron and a positively charged hole, which can be thought of as a missing electron, meet on the molecule.
The researchers tested a variety of solutions containing the soil bacteria Geobacter sulfurreducens and Thiobacillus denitrificans, which thrive by eating acetate (an organic compound that makes vinegar sour) and nitrate (a negatively - charged molecule of biologically available nitrogen and oxygen), respectively, when they can find a spare electron or two.
The pools swelled when rain fell, but when they evaporated, the organic molecules in them became more concentrated, forming films like cell membranes, or joining into longer chains like strands of RNA.
When phytoplankton use carbon dioxide to make new cells, a substantial portion of that cellular material is released into the sea as a buffet of edible molecules collectively called «dissolved organic carbon.»
«The golden age of synthetic organic chemistry occurred between 1973 and 1987, when chemists began to have the ability to synthesize incredibly complex molecules,» he said.
When the methane is irradiated it is churned into ethane and other more complex organics (the molecule loses a hydrogen bond and more carbon atoms become chained together).
When an icy impact occurred, the impactor's kinetic energy became heat energy, instantly melted some ice, gouged out a crater, and kicked up into Mars» thin atmosphere large amounts of debris mixed with water (liquid, ice crystals, and vapor)-- and complex organic molecules that obviously came recently from life.127 Then, the dirt and salt - water mixture settled back to the surface in vast layers of thin sheets — strata — especially around the crater.
(If you are an organic chemistry - buff, perhaps you'll know a lot more about what the following information means than I do) When reduction is initiated by digestion (digestive enzymes) or fermentation, 100 % of molecules break «to the right» — which is how our body uses them best.
When combined with water the sugar molecules of the plant, form an organic gel or mucus which provides moisture, alleviates irritation and envelopes your baby's skin in a soothing and protective cocoon.
The team grew tiny, upright zinc oxide nanorods, which act as photocatalysts for breaking apart organic molecules when exposed to UV light, on the surface of optical disks.