All articles starting with M

Manganese ferrite

Manganese ferrite, MnFe₂O₄, is a soft magnetic ceramic spinel ferrite with a partially inverse structure, prepared from inexpensive, earth-abundant precursors for remediation and biomedical uses.

Manganese metabolism

Manganese metabolism is the body's uptake, distribution, and excretion of the trace metal manganese, a cofactor for key enzymes that accumulates in the basal ganglia when excretion fails.

Manganese nodule

A manganese nodule, also called a polymetallic nodule, is a potato-sized concretion of iron and manganese oxides lying loose on the deep seabed, rich in nickel, copper, and cobalt.

Manganese oxide electrocatalysis

Manganese oxide electrocatalysis is the use of manganese oxides (MnOx) as electrocatalysts, above all for oxygen evolution in water splitting, driven by the scarcity of iridium and ruthenium benchmarks.

Manganese oxide nanoparticles

Manganese oxide nanoparticles, also called MnOₓ NPs, are nanoscale particles of manganese oxides including MnO, MnO₂, and Mn₃O₄, used in energy storage, catalysis, and biomedical imaging.

Manganese phosphide

Manganese phosphide (MnP) is an intermetallic compound of manganese and phosphorus, a gray metallic solid that is ferromagnetic below 291 K and becomes the first manganese-based superconductor under pressure of about 8 GPa.

Manganese pincer hydrogenation catalysts

Manganese pincer hydrogenation catalysts are Mn(I) complexes with tridentate pincer ligands that use molecular hydrogen to reduce polar bonds like ketones, esters, and CO2, a field begun in 2016.

Oct 21, 2026

Manganese poisoning

Manganese poisoning, also called manganism, is a neurological condition caused by chronic inhalation of manganese dust or fumes, producing tremor, rigidity, slowed movement, and psychiatric disturbance.

Manganese silicide

Manganese silicide is an intermetallic compound of manganese and silicon. Its best-studied form, Mn₅Si₃, is an altermagnet that combines spin-polarized currents with antiferromagnetic speed and field robustness.

Manganese sulfate

Manganese sulfate (manganese(II) sulfate, MnSO4) is a water-soluble inorganic salt of divalent manganese, serving as the main precursor to manganese metal and manganese dioxide and used in fertilizers, animal feed, and ceramics.

Manganese thiophosphate

Manganese thiophosphate, also called manganese phosphorus trisulfide, is a layered van der Waals semiconductor (MnPS₃) that becomes antiferromagnetic at 78 K and is a standard platform for studying 2D magnetism.

Manganese-catalyzed asymmetric hydrogenation

Manganese-catalyzed asymmetric hydrogenation is the enantioselective addition of hydrogen across ketone, imine, and alkene bonds using chiral manganese pincer complexes, a field opened in 2016 that replaces precious metals like rhodium and iridium.

Manganese-catalyzed C–H fluorination

Manganese-catalyzed C–H fluorination is a reaction in which a manganese porphyrin catalyst converts unactivated aliphatic C–H bonds directly into C–F bonds, first reported by Groves in 2012.

Manganese-oxo cubane

A manganese-oxo cubane is a molecular cluster with manganese ions and oxide bridges alternating at the corners of a cube, best known as a model for photosynthesis's oxygen-evolving complex.

Manganese-oxo cubane water oxidation catalysts

Manganese-oxo cubane water oxidation catalysts are Mn₄O₄-type molecular clusters, bioinspired by the oxygen-evolving complex of photosystem II, that oxidize water to oxygen; the Dismukes cubane exceeds 1000 catalytic turnovers on Nafion electrodes.

Manganese-zinc ferrite

Manganese-zinc ferrite (MnZn ferrite) is a soft magnetic spinel ceramic of manganese, zinc, and iron, used chiefly as the core material of transformers and inductors up to about 1 MHz.

Manganese(II) oxide

Manganese(II) oxide, also called manganous oxide, is an inorganic compound of manganese and oxygen with formula MnO, used as a precursor to manganese chemicals, in ceramics and pigments, and as a battery anode material.

Manganin

Manganin is a copper-manganese-nickel resistance alloy, invented in 1889, whose resistance barely changes near room temperature, making it the standard material for precision resistance standards and current shunts.

Manganite

Manganite is a manganese oxide-hydroxide mineral, MnOOH, the most stable of three natural polymorphs, best known for lustrous black striated crystals from Germany's Harz Mountains.

Mangas Coloradas

Mangas Coloradas (Dasoda-hae, c. 1790s–1863) was a Chiricahua Apache leader who dominated Apache-American relations in the Southwest for four decades until soldiers killed him in 1863.

Oct 21, 2026

Mangathevanpatti Mound

Mangathevanpatti Mound, Pudukkottai district, Tamil Nadu: site of two ancient Jain temples preserved to plinth level, with Adinatha and Yakshi images, protected as two ASI centrally protected monuments (survey 282-A and 282-C).

Oct 21, 2026

Mangaung Metropolitan Municipality

Mangaung Metropolitan Municipality, a Category A metro in South Africa's Free State seated in Bloemfontein, elevated in 2011; 811,431 residents (Census 2022), ANC-led, under national intervention since 2019 with repeated qualified audit opinions.

Mangave

Mangave (×Mangave) is a horticultural group of artificial hybrids between the former genus Manfreda and Agave, coined in 2003; first cultivar 'Macho Mocha' released 2004, most introductions by Hans Hansen at Walters Gardens, now taxonomically folded into Agave.

Mangbetu art

Mangbetu art is the sculptural and ceramic tradition of the Mangbetu peoples of the northeastern Democratic Republic of the Congo, known for harps, jars, and hairpins with elongated human heads.

Mange

Mange (cutaneous acariasis, scabies) is a mite-infestation skin disease of animals causing pruritus, crusts, and hair loss; caused by Sarcoptes, Psoroptes, Chorioptes, Demodex, and Notoedres mites, treated with macrocyclic lactones and isoxazolines.

Mangeliidae

Mangeliidae (P. Fischer, 1883) is a family of small venomous sea snails in the superfamily Conoidea, formerly the subfamily Mangeliinae, with 62 living genera including Mangelia, Bela, and Oenopota, and shells 3–30 mm long.