All articles starting with D
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Diamidophosphate
Diamidophosphate (DAP), or phosphorodiamidic acid, is a water-soluble phosphorus-nitrogen compound, first prepared in 1894 and prominent in origins-of-life research as a prebiotic phosphorylating agent.
Diamine derivatization reactions
Diamine derivatization reactions convert molecules bearing two amine groups into amides, ureas, imines, carbamates, or protected derivatives, with the central problem being whether one or both nitrogens react.
Diamines as chelating ligands
Diamines such as ethylenediamine act as chelating ligands, binding a metal ion through both nitrogen atoms to form a five-membered ring, the basis of the chelate effect.
Diaminopimelic acid
Diaminopimelic acid, or DAP, is an amino acid found in bacterial cell walls, where it cross-links peptidoglycan, and in lysine biosynthesis, making it an antibiotic target.
Diammonium phosphate
Diammonium phosphate, also called diammonium hydrogen phosphate, is the white crystalline salt (NH4)2HPO4, one of the most common phosphorus fertilizers with grade 18-46-0, also used as a wildland fire retardant.
Diamond
Diamond is a mineral of crystallized elemental carbon, prized as a gemstone and used industrially; it forms deep in the mantle and is the hardest known natural material.
Diamond (2026 film)
Diamond (2026) is Andy Garcia's neo-noir crime drama, also called a contemporary noir homage, in which Garcia writes, directs, produces, and stars as anachronistic LA private detective Joe Diamond; it premiered Out of Competition at Cannes 2026, runs 118 minutes, and stars Vicky Krieps, Brendan Fraser, and Dustin Hoffman.
Diamond (gemstone)
Diamond is a gemstone cut from the mineral diamond, a pure form of carbon that is the hardest known natural material and the world's most popular gemstone.
Diamond and Silk
Diamond and Silk: conservative commentary duo of sisters Lynnette 'Diamond' Hardaway and Rochelle 'Silk' Richardson, North Carolina pro-Trump activists of the 2016 campaign, later Fox Nation and Newsmax hosts; Hardaway died January 8, 2023, of heart disease.
Diamond anvil cell
The diamond anvil cell, also known as the diamond vise, is a laboratory device that generates extreme static pressure by squeezing samples between two opposed diamond tips.
Diamond Bar, California
Diamond Bar is a city in eastern Los Angeles County, California, incorporated in 1989 and named for the Diamond Bar cattle ranch brand registered in 1918. Population about 55,000; master-planned by Transamerica from 1956.
Diamond battery
A diamond battery, also called a nuclear diamond battery, is a betavoltaic battery using radioactive carbon-14 in synthetic diamond, first announced by UKAEA and the University of Bristol in December 2024.
Diamond clarity
Diamond clarity is one of the 4Cs of diamond grading, measuring the absence of internal inclusions and surface blemishes on a GIA scale from Flawless to I3.
Diamond color
Diamond color is the gem-trade grade of how little yellow or brown tint a diamond shows, graded D (colorless) to Z on the GIA scale.
Diamond color center
A diamond color center is an atomic-scale point defect in the diamond lattice that emits characteristic light and carries spin usable for quantum bits, single-photon sources, and nanoscale sensing.
Diamond composites
Diamond composites are material systems combining diamond with metals, ceramics, carbides, or other phases, studied chiefly as heat spreaders for high-power electronics since diamond/silicon carbide composites were first grown in 1992.
Diamond core drilling
Diamond core drilling is a rotary drilling method in which a diamond-impregnated bit cuts a solid cylinder of rock, called a core, for examination at the surface.
Diamond Court
Diamond Court (钻石球场), also Shouchuang Diamond Court, is the 15,000-seat center court of the China National Tennis Center in Beijing; opened 2011, hard court, 12-minute retractable roof, main stadium of the China Open.
Diamond cubic
The diamond cubic structure, also called the diamond lattice, is a crystal structure with tetrahedral bonding to four neighbors, adopted by diamond, silicon, germanium, and α-tin.
Diamond cut
Diamond cut is the quality of how a polished diamond's facets are arranged and proportioned, distinct from shape, and the factor that most determines its beauty.
Diamond DA62
The Diamond DA62 is a twin-engine, seven-seat light aircraft built by Diamond Aircraft Industries, certified by EASA in 2015 and powered by two Austro Engine AE330 jet-fuel piston engines.
Diamond Dallas Page
Diamond Dallas Page (Page Joseph Falkinburg), WWE Hall of Fame wrestler, three-time WCW world champion, and creator of DDP Yoga, a low-impact fitness program combining yoga, calisthenics, rehab, and dynamic resistance.
Diamond Dixon
Diamond Dixon (born 1992, El Paso, Texas) is an American 400m sprinter, 2012 London Olympic gold medallist in the 4x400m relay heats runner, Kansas Jayhawks alumna, 50.88 personal best.
Diamond Dogs
Diamond Dogs is David Bowie's eighth studio album, a 1974 RCA concept album loosely based on Orwell's Nineteen Eighty-Four after rights were denied, set in Hunger City, reaching UK number one and spawning the Diamond Dogs Tour.
Diamond dust
Diamond dust is a form of precipitation of very small, unbranched ice crystals that fall slowly from an apparently cloudless sky, typically in cold polar regions.
Diamond Eyes
Diamond Eyes is Deftones' sixth studio album (Reprise, May 4, 2010), produced by Nick Raskulinecz, first album with bassist Sergio Vega after Chi Cheng's 2008 accident, debuting at number 6 on the Billboard 200.
Diamond Foundry
Diamond Foundry is an American company founded in 2012 in San Francisco that grows single-crystal diamond in plasma reactors, selling jewelry-grade lab-grown diamonds under its VRAI brand.
Diamond Green Diesel
Diamond Green Diesel is a 50/50 joint venture of Valero Energy and Darling Ingredients producing renewable diesel at Gulf Coast plants in Louisiana and Texas since 2013.
Diamond grinding
Diamond grinding is a concrete pavement preservation technique, first used in California in 1965, that restores smoothness, friction, and noise levels by shaving a thin surface layer.
Diamond Head (group)
Diamond Head is an English heavy metal band formed in 1976 in Stourbridge, best known for the 1980 album Lightning to the Nations and its influence on Metallica.