| 单词 | amine |
| 例句 | So if you want to try this vibrant, dynamic artform, here are five offbeat, beautiful amine TV series to get you started. Anime for beginners: five TV series to get you started 2013-04-01T14:00:00Z It was a lack of another substance, Funk theorized in 1912: a nitrogen-containing compound he called a “vitamine,” combining the Latin word for “life” with “amine,” a name for a compound that contains nitrogen. Why is there a Vitamin K but no Vitamin F? 2023-11-09T05:00:00Z And cooking chicken and other meats at high temperatures can form heterocyclic amines, which are carcinogens. Opinion | Plant-based food swaps can be healthy 2023-03-02T05:00:00Z It has become clear that we quickly recognize some sulfur-containing compounds as the scent of garlic, for example, and certain ammonia-derived amines as a fishy odor. AI Predicts What Chemicals Will Smell like to a Human 2022-10-27T04:00:00Z The nitrogen atom in an amine has a lone pair of electrons and three bonds to other atoms, either carbon or hydrogen. Chemistry 2019-02-14T00:00:00Z The carboxylic acid carbon, O = C – OH, of one amino acid can form a bond with the amine, NH2, of another amino acid. Biology for AP Courses 2022-06-09T00:00:00Z The “e” used in Funk’s new term was eventually dropped after scientists recognized that not all the compounds were nitrogen-containing amines. Why is there a Vitamin K but no Vitamin F? 2023-11-09T05:00:00Z In these reactions, an amine group, or ammonium ion, from the amino acid is exchanged with a keto group on another molecule. Anatomy and Physiology 2013-06-19T00:00:00Z Taking its etymological roots from the Greek for "dead body," the word refers to amine compounds found in decaying organic matter. Everything you wanted to know about food poisoning but were too busy puking to ask 2021-05-16T04:00:00Z In some amines, the nitrogen atom replaces a carbon atom in an aromatic hydrocarbon. Chemistry 2019-02-14T00:00:00Z In the formation of this peptide bond, the amine replaces the OH to form O = C – NH2. Biology for AP Courses 2022-06-09T00:00:00Z A collaboration with a team led by Robert Perry, a chemist at GE Global Research, revealed that when the amines bound CO2, hydrogen atoms on solvent molecules became attracted to neighboring molecules, tying them together. New generation of carbon dioxide traps could make carbon capture practical 2021-03-24T04:00:00Z Hormones derived from amino acids include amines, peptides, and proteins. Anatomy and Physiology 2013-06-19T00:00:00Z That’s similar to the cost of more traditional direct air capture using liquid amines, which has already gained widespread attention and commercial interest. Industrial waste can turn planet-warming carbon dioxide into stone 2020-09-03T04:00:00Z Like ammonia, amines are weak bases due to the lone pair of electrons on their nitrogen atoms: Chemistry 2019-02-14T00:00:00Z The researchers patterned the graphene with “functional groups”—chemical studs such as carboxyl or amine groups. ‘We need a people’s cryo-EM.’ Scientists hope to bring revolutionary microscope to the masses 2020-01-23T05:00:00Z This pipeline-quality CO2 removes the need for CO2 capture in current technologies that use amines or hydroxides to scrub the CO2. Natural Gas Use Is Rising. Is that Good News or Bad News for the Climate? 2020-01-09T05:00:00Z Other neurotransmitters are the result of amino acids being enzymatically changed, as in the biogenic amines, or being covalently bonded together, as in the neuropeptides. Anatomy and Physiology 2013-06-19T00:00:00Z They report that it reacts with almost any primary amine in a one-to-one ratio, achieving a nearly 100% yield of the corresponding azide. Double-click enables synthesis of chemical libraries for drug discovery 2019-10-01T04:00:00Z The basicity of an amine’s nitrogen atom plays an important role in much of the compound’s chemistry. Chemistry 2019-02-14T00:00:00Z These compounds, called polycyclic aromatic hydrocarbons and heterocyclic amines, get generated when food, especially meat, is cooked on a grill. 10 Ways to Lower the Cancer Risk of Grilling 2019-06-27T04:00:00Z New York-based Global Thermostat’s technology uses chemicals called amines to capture and concentrate carbon dioxide from flue gas at industrial facilities or directly from the atmosphere. Exxon to partner with carbon capture firm 2019-06-27T04:00:00Z The medulla is stimulated to secrete the amine hormones epinephrine and norepinephrine. Anatomy and Physiology 2013-06-19T00:00:00Z This opens the door to a highly efficient and general two-step method for converting primary amines — a common chemical group in organic molecules — into triazoles. Double-click enables synthesis of chemical libraries for drug discovery 2019-10-01T04:00:00Z One class of substances, called alkaloids, found in many of these plants has been isolated and found to contain cyclic molecules with an amine functional group. Chemistry 2019-02-14T00:00:00Z Most existing carbon capture technologies use a chemical, amine. UK carbon capture project begins 2019-02-08T05:00:00Z The emerging field of nutritional science identified milk – with its high protein content and newly discovered “vital amines”, or vitamins – as a potential solution. White gold: the unstoppable rise of alternative milks 2019-01-29T05:00:00Z The pinealocyte cells that make up the pineal gland are known to produce and secrete the amine hormone melatonin, which is derived from serotonin. Anatomy and Physiology 2013-06-19T00:00:00Z The radical is then converted in situ to a racemic mixture of amines. Enzymes team up with light-activated catalysts 2018-08-14T04:00:00Z The reaction between amines and carboxylic acids to form amides is biologically important. Chemistry 2019-02-14T00:00:00Z It uses an organic solvent which it says is less toxic than amine and uses less energy. UK carbon capture project begins 2019-02-08T05:00:00Z Sarin and other organophosphates that lack an amine group may trigger a lasting neurotoxic syndrome with symptoms such as nightmares, memory deficits, muscle weakness, and depression. U.K. attack shines spotlight on deadly nerve agent developed by Soviet scientists 2018-03-19T04:00:00Z Another class of neurotransmitter is the biogenic amine, a group of neurotransmitters that are enzymatically made from amino acids. Anatomy and Physiology 2013-06-19T00:00:00Z These other suspects include haem iron – a substance that is abundant in all red meat, processed or not – and heterocyclic amines: chemicals that form in meat during cooking. Yes, bacon really is killing us 2018-03-01T05:00:00Z The resulting bond—between the carbonyl group carbon atom and the amine nitrogen atom is called a peptide link or peptide bond. Chemistry 2019-02-14T00:00:00Z He also asserts that it is important to examine specific regions of the brain because they might evolve differently. Cetaceans' Big Brains Are Linked to Their Rich Social Life 2017-11-24T05:00:00Z The firm says it is more efficient than typical amine compounds used for the purpose. India's double first in climate battle - BBC News 2017-01-03T05:00:00Z Other biogenic amines are made from tyrosine, and include dopamine, norepinephrine, and epinephrine. Anatomy and Physiology 2013-06-19T00:00:00Z That solution is pumped to a regenerator, or stripper, which heats the amine and releases the CO2. Can Carbon Capture Technology Prosper Under Trump? 2017-01-02T05:00:00Z Compounds containing a nitrogen atom bonded in a hydrocarbon framework are classified as amines. Chemistry 2019-02-14T00:00:00Z The neurotransmitters that mediate emotion, awareness, and the creation of meaning are amines—such as serotonin, dopamine, and norepinephrine—which evolved from the same molecular antecedents as many plant-messenger molecules. The Drug of Choice for the Age of Kale 2016-09-05T04:00:00Z Base species such as amines can do this and can explain part of atmospheric particle nucleation10. Ion-induced nucleation of pure biogenic particles : Nature : Nature Publishing Group 2016-05-24T04:00:00Z In contrast, endocrine glands that arise from the endoderm and ectoderm produce the amine, peptide, and protein hormones. Anatomy and Physiology 2013-06-19T00:00:00Z The exhaust stream, pushed down a snaking conduit to the Petra Nova equipment, is exposed to a solution of chemicals known as amines, which bond with the carbon dioxide. Can Carbon Capture Technology Prosper Under Trump? 2017-01-02T05:00:00Z The common feature of amino acids is that they contain the functional groups: an amine group, –NH2, and a carboxylic acid group, –CO2H. Chemistry 2019-02-14T00:00:00Z Some of the most important messenger molecules in the plant kingdom are called amines, and are typically derived from amino acids. The Drug of Choice for the Age of Kale 2016-09-05T04:00:00Z The first, which is more important in polluted environments, involves nucleation of sulfuric acid and water together with a combination of amines or ammonia with oxidized organics, and has a strong dependence on sulfuric acid. Ion-induced nucleation of pure biogenic particles : Nature : Nature Publishing Group 2016-05-24T04:00:00Z That means that the amine group, NH2, is removed from amino acids as they are broken down. Anatomy and Physiology 2013-06-19T00:00:00Z The gas is drawn off and compressed for further use, and the amine solution is then cycled back through the system to absorb more CO2. Can Carbon Capture Technology Prosper Under Trump? 2017-01-02T05:00:00Z Various nomenclatures are used to derive names for amines, but all involve the class-identifying suffix –ine as illustrated here for a few simple examples: Chemistry 2019-02-14T00:00:00Z Normally, these amines react indiscriminately to form a wide mix of different compounds. ‘RNA world’ inches closer to explaining origins of life 2016-05-12T04:00:00Z The stabilizing agent for pure biogenic particles is a suitable ion, whereas for sulfuric acid particles the stabilizing agents are amines, or ammonia with oxidized organics. Ion-induced nucleation of pure biogenic particles : Nature : Nature Publishing Group 2016-05-24T04:00:00Z To prevent the amine groups from causing collateral damage the researchers wondered if it was possible to neutralise them with more benign compounds. General knowledge 2016-04-28T04:00:00Z The gathered carbon dioxide, separated from the amine, would be compressed, moved through pipelines and ultimately buried underground. Technology to Make Clean Energy From Coal Is Stumbling in Practice 2016-03-29T04:00:00Z Amides can be produced when carboxylic acids react with amines or ammonia in a process called amidation. Chemistry 2019-02-14T00:00:00Z It readily reacts in water—also thought to be plentiful at the time—to form one of a class of molecules called aminopyrimidines, which contain several chemical groups called amines. ‘RNA world’ inches closer to explaining origins of life 2016-05-12T04:00:00Z Those at greatest risk from the malignancy were workers exposed to chemicals known as aromatic amines. Risk of Bladder Cancer Rising for Workers in Many Industries 2015-10-08T04:00:00Z A series of studies showed that mannose largely did stop the amines from making contact with cells, while at the same time allowing the polymer to attach to a variety of viruses. General knowledge 2016-04-28T04:00:00Z Despite the plant’s initial filtering, tiny particles of ash still remain in the exhaust and contaminate the amine, reducing its ability to grab carbon, Mr. Marsh said. Technology to Make Clean Energy From Coal Is Stumbling in Practice 2016-03-29T04:00:00Z The team's next goal is to use the method in a one-step synthesis of amines: nitrogen-containing organic compounds that are used in many dyes and drugs, and that typically require two or three synthesis steps. The slow-chemistry movement 2015-08-03T04:00:00Z Carell needed to find a way to stop all but one critical amine from reacting. ‘RNA world’ inches closer to explaining origins of life 2016-05-12T04:00:00Z Marinades amp up flavor, act as a tenderizer and help reduce the formation of harmful, cancer-promoting compounds called heterocyclic amines by as much as 88 percent, according to one study. Ready, Set, Grill: 15 Healthy BBQ Ideas from Nutrition Pros 2015-06-29T04:00:00Z There is another risk from meat fat which is especially prevalent during barbecue season: dripping fat creates carcinogens called “heterocyclic amines” and “polycyclic aromatic hydrocarbons,” health experts warn. 7 lies about red meat the food industry wants you to believe 2015-06-19T04:00:00Z The Dow Chemical Company’s Performance Materials division primarily sells amines, chlorinated organics, automotive systems, epoxy and polyurethanes. How Does Dow Plan To Expand Its Performance Materials Margins? 2014-09-16T04:00:00Z He considered these chemicals vital amines, which he shortened to “vitamines”. Nutrition: Vitamins on trial 2014-06-24T04:00:00Z That extra proton killed the reactivity of all but one of the amine groups on the molecule. ‘RNA world’ inches closer to explaining origins of life 2016-05-12T04:00:00Z Congeners include acetaldehyde itself as well as acetone, fusel oil, furfural, methanol's metabolites, polyphenols, histamines, esters, tannins, amines and amides, among others. In Search of a Cure for the Dreaded Hangover 2014-03-17T11:00:00Z That is less than a quarter of the cost of the amine system. Former Energy Secretary Chu Joins Board of Canadian Startup 2013-12-18T04:06:33Z In one study, University of Toronto researchers showed that attaching certain organic molecules to iron, then dissolving it in a solution, created an efficient catalyst for producing alcohols and amines used in perfumes and medications. Observatory: Building a Cheaper Catalyst 2013-12-02T21:28:30Z Our results directly link high concentrations of neutral H2SO4 dimer with amines at atmospheric levels. Molecular understanding of sulphuric acid–amine particle nucleation in the atmosphere 2013-10-16T17:22:18.533Z And much to Carell’s delight, the lone amine that stayed reactive was precisely the one that reacts to form a purine. ‘RNA world’ inches closer to explaining origins of life 2016-05-12T04:00:00Z The rate at which these clusters emerge depends on the presence of compounds such as ammonia and amines. Climate science: Clouds of (slightly less) unknowing 2013-10-02T18:02:57Z The synthetic amines that swirl around this lunar centre, the scent of ginger musk is so powerful. Surrendered human 2013-07-24T17:20:43.970Z So Perkin tried again, this time choosing a simpler amine called aniline, which was derived from benzene, another coal tar component that would become notorious later. Dye Me a River: How a Revolutionary Textile Coloring Compound Tainted a Waterway [Excerpt] 2013-03-22T14:15:00.380Z These results show that, in regions of the atmosphere near amine sources, both amines and sulphur dioxide should be considered when assessing the impact of anthropogenic activities on particle formation. Molecular understanding of sulphuric acid–amine particle nucleation in the atmosphere 2013-10-16T17:22:18.533Z Further lab results presented today in Science show that the reactive amine on the aminopyrimidine readily bonds with either formic acid or formamide. ‘RNA world’ inches closer to explaining origins of life 2016-05-12T04:00:00Z According to his economic modeling, the rough cost of capture will be $35 per ton of CO2, a figure that is at least half the cost of other capture methods, such as amine scrubbing. Can CO2 Be Captured and Sold? 2012-12-21T18:15:06.390Z Another uses amine groups that actually react chemically with the carbon dioxide. How to Make CO2 Better at Extracting Oil 2012-10-22T15:15:00.957Z Nitrogen oxides, which include, among other things, pollutants from cars, combine with amines, which are a byproduct of agricultural practices, such as manure emissions. Chemistry and Clouds 2012-09-19T14:05:00Z The results reported here show that nucleation in the atmospheric boundary layer is highly sensitive to trace amine levels of only a few p.p.t.v. Molecular understanding of sulphuric acid–amine particle nucleation in the atmosphere 2013-10-16T17:22:18.533Z The most common capture technologies involve running the gas to be processed through a solution of amines or ammonium carbonate. Carbon capture and storage: A shiny new pipe dream 2012-05-10T15:06:15Z TCM will test two carbon capture technologies, one based on amine and the other on chilled ammonia solvent, to trap CO2 emitted from the plant and the refinery. Norway Opens Major Facility to Test Carbon Capture 2012-05-07T18:45:00.197Z The Boundary Dam power utility in Saskatchewan will capture 90 percent with an amine solvent, albeit from a much smaller facility, and then deliver that CO2 to recover additional oil in nearby fields. Climate Talks Prove Growing Need for Carbon Capture and Storage Globally 2011-12-10T05:45:00.387Z Auric chloride combines with the hydrochlorides of many organic bases—amines, alkaloids, &c.—to form characteristic compounds. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z However, atmospheric observations indicate both the presence and the absence of a significant amine fraction in newly formed particles, which suggests considerable variability of ambient amine levels. Molecular understanding of sulphuric acid–amine particle nucleation in the atmosphere 2013-10-16T17:22:18.533Z By the action of nitrous acid at low temperatures on aromatic amines, e.g. aniline, C6H5NH2, diazo compounds are produced. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z Taminco would add amine derivatives that are used in products from crop protection to paint and cosmetics to Lanxess products that include plastics, rubber, intermediates and specialty chemicals. Lanxess Said to Explore Bid for CVC’s Taminco Worth $1.4 Billion 2011-06-01T06:15:15Z In the preparation of the azo dyes the starting-point is a primary amine; the amino group is 'diazotized', i.e. treated with a solution of sodium nitrite and dilute mineral acid at low temperature. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z He called the substance a 'vital amine', which soon became 'vitamin'. History: The changing notion of food 2011-01-04T21:23:21.683Z Extended Data Figure 2: Theoretical dependence of amine ternary nucleation rates on RH. Molecular understanding of sulphuric acid–amine particle nucleation in the atmosphere 2013-10-16T17:22:18.533Z The necessary diazo compound is prepared by allowing a solution containing nitrous acid to act upon a solution of a primary aromatic amine. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z Two business journalists examine the financial crisis of 2008. , by Michael Lewis. Hardcover Business Best Sellers 2010-12-04T00:45:00Z These substances are formed from the aromatic amines by treatment with nitrous acid at low temperatures. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z However, some smaller companies offer products that meet EPA standards without resorting to ingredients some environmentalists find troubling, such as sodium hypochlorite, phenols and quaternary amines, or "quats." Green Lantern: Choosing kitchen disinfectants 2009-11-03T05:00:00Z Extended Data Figure 3: Theoretical dependence of ammonia ternary and amine ternary nucleation rates on temperature. Molecular understanding of sulphuric acid–amine particle nucleation in the atmosphere 2013-10-16T17:22:18.533Z The colour obtained varies according to the particular diazo compound, as well as the amine or phenol employed, β-naphthol being the most useful among the latter. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z "We investigated whether compounds found in meat, formed either during the meat cooking process -- heterocyclic amines or polycyclic aromatic hydrocarbons -- or during meat preservation -- nitrates and nitrites -- were associated with bladder cancer." Chemicals in meat may be linked to bladder cancer 2010-08-02T18:31:00Z Studies show that adding it to ground beef and other types of muscle meat before grilling, frying, broiling or barbecuing significantly reduces heterocyclic amines. Really?: The Claim: Rosemary helps reduce toxins in grilled meat. 2010-05-31T17:18:00Z The proteins that are the basis of its adhesive contain phosphate and amine groups, molecular fragments that are well-known adhesion promoters. Material World: Studying Sea Life for a Glue That Mends People 2010-04-12T20:59:00Z Extended Data Figure 3: Theoretical dependence of ammonia ternary and amine ternary nucleation rates on temperature. Molecular understanding of sulphuric acid–amine particle nucleation in the atmosphere 2013-10-16T17:22:18.533Z The dyed colour here plays the part of a phenol or amine, and reacts with the diazo compound to produce a new colour. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" 2010-12-26T03:00:17.840Z Similarly, no link was made between bladder cancer and the consumption of heterocyclic amines, polycyclic aromatic hydrocarbons, or total nitrites or nitrates from processed meat. Chemicals in meat may be linked to bladder cancer 2010-08-02T18:31:00Z The amines are compounds formed by the introduction of alcohol radicles into ammonia, e.g. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide The finding of polybasicity was extended to other acids and formed the model that helped to recognize the polyfunctionality in other compounds, like alcohols and amines. History of Phosphorus Another experiment measured high dimer formation rates linked to amine mixing ratios of about 1 part per billion by volume and above. Molecular understanding of sulphuric acid–amine particle nucleation in the atmosphere 2013-10-16T17:22:18.533Z When crushed, these tissues give off a very fetid odor, which is due to this amine. The Chemistry of Plant Life The product of photochemical decomposition no longer forms azo-colours with amines or phenols. Coal and What We Get from It There he spent ten years, studying the aromatic compounds and continuing to work on the amines, until in 1871 he was appointed to the chair of chemistry at Rome university. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 2 "Camorra" to "Cape Colony" It has also been shown that when different salts of the amine are used, their catalytic influence varies in amount and is almost proportional to their degree of ionization in aqueous solution. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" Additional species such as ammonia or amines are therefore necessary to stabilize the embryonic clusters and decrease evaporation. Molecular understanding of sulphuric acid–amine particle nucleation in the atmosphere 2013-10-16T17:22:18.533Z There is no known physiological use for these simple amines in plants. The Chemistry of Plant Life Biochemical taxonomy of South American amphibians by means of skin amines and polypeptides. The Genera of Phyllomedusine Frogs (Anura Hylidae) The combination of nitrogen with carbon may result in the formation of nitriles, cyanides, or primary, secondary or tertiary amines. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" In the latter reaction it is assumed that the isodiazohydroxide first formed is immediately attacked by a second molecule of the amine. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" Moreover, amine scrubbing is likely to become the dominant technology for CO capture from fossil-fuelled power plants, so anthropogenic amine emissions are expected to increase in the future. Molecular understanding of sulphuric acid–amine particle nucleation in the atmosphere 2013-10-16T17:22:18.533Z From their structure and properties, it is apparent that nucleic acids are on the border line between carbohydrates, plant amines, and proteins. The Chemistry of Plant Life By the action of nitrous acid upon the salts of the primary organic amines the so-called diazo compounds are formed. The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student These formulae, however, only apply to aliphatic amines; the results obtained in the aromatic series are in accordance with the usual formulae. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Replacement of -NH2 by -OH:—The amine is diazotized and the aqueous solution of the diazonium salt is heated, nitrogen being eliminated and a phenol formed. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" Smith doesn't know anything about anything except amines. The Skylark of Space Corresponding in structure and properties to these amines of animal origin, there is a series of basic substances, found in many plants, known as the plant amines. The Chemistry of Plant Life It was early recognized that the alkaloids were complex amines or ammonia derivatives. Scientific American Supplement, No. 415, December 15, 1883 Furthermore, he exhibited a comparison between these three types of alcohols and the amines. The Project Gutenberg Encyclopedia Volume 1 of 28 For that reason he suggested that his product belonged to a class of substances which chemists call "amines." The Vitamine Manual Morphine, C17H19NO3, is a tertiary amine, and appears to contain a hydroxyl group like phenols, to which class of bodies it has some analogies, as is shown in its reaction with ferric chloride. Scientific American Supplement, No. 415, December 15, 1883 Strychnine has been found to be a tertiary amine. Scientific American Supplement, No. 415, December 15, 1883 |
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