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Sol-gel synthesis

Sol-gel synthesis is a wet-chemistry method that converts metal alkoxide precursors into a colloidal sol and then a solid gel, producing oxides, glasses, films, and aerogels near ambient temperature.

Sol–gel auto-combustion synthesis

Sol–gel auto-combustion synthesis is a solution-based combustion method that converts a gel of metal nitrates and organic fuel into fine, homogeneous oxide and ceramic nanopowders.

Sol–gel process

The sol–gel process is a wet-chemical method for making solid inorganic materials, chiefly metal oxides, from metal alkoxide precursors via hydrolysis and condensation, forming sols that gel into oxide networks.

Sol–gel transition

The sol–gel transition, or gelation, is the point at which a liquid sol of polymers or colloids becomes a gel, first described by Flory in 1941.

Sola Aoi (蒼井そら)

Sola Aoi (蒼井そら, 苍井空), born 1983, Japanese AV idol turned mainstream actress, singer, and Ebisu Muscats first leader, famous in China as "Teacher Cang" with over 19 million followers.

Sola Busca tarot

The Sola Busca tarot (Tarocchi Sola Busca) is the oldest complete 78-card tarot deck, engraved around 1491 in Ferrara and hand-colored in Venice, the first copperplate-engraved tarot with fully illustrated minor arcana, a source for Rider-Waite-Smith imagery, now at the Pinacoteca di Brera.

Sola fide

Sola fide, also known as justification by faith alone, is the Protestant doctrine that God declares sinners righteous through faith in Christ alone, apart from works.

Sola l 2

Sola l 2, formerly Lyc e 2, is the beta-fructofuranosidase (EC 3.2.1.26) allergen of tomato, the second officially recognized tomato allergen, a 50 kDa glycoprotein whose IgE binding is driven by cross-reactive carbohydrate determinants.

Sola Monova

Sola Monova (Сола Монова), the pseudonym of Yulia Valeryevna Solomonova, is a Russian poetess and film and theater director from Vladivostok known for her huge social media poetry audience.

Sola scriptura

Sola scriptura (Latin, "Scripture alone") is the Protestant doctrinal principle that the Bible is the church's only infallible authority for faith and practice, first articulated by Luther in 1519.

Solace (2015 film)

Solace is a 2015 American crime thriller directed by Afonso Poyart, starring Anthony Hopkins, Jeffrey Dean Morgan, Abbie Cornish, and Colin Farrell, released in the United States in 2016.

Solace & The Vices

Solace & The Vices is the fifth studio album by American singer-songwriter Bryson Tiller, a 2025 double album split into the rap disc The Vices and the R&B disc Solace.

Solaire Direct

Solairedirect was a French solar power developer founded in 2006, known for utility-scale photovoltaic projects built to compete without subsidies; ENGIE acquired it in 2015 for about €321 million.

Solana (blockchain platform)

Solana is a proof-of-stake blockchain platform designed for high throughput and low fees, using Proof of History; founded by Anatoly Yakovenko and Raj Gokal, its mainnet went live in 2020.

Solanaceae

Solanaceae, the nightshade family (nightshades), is a Solanales plant family of 103 genera and about 3,000 species, most diverse in the Neotropics; it includes potato, tomato, pepper, tobacco, and Petunia, with almost half its species in Solanum.

Solanales

Solanales, an order of lamiid flowering plants with five families (Solanaceae, Convolvulaceae, Hydroleaceae, Montiniaceae, Sphenocleaceae), about 165 genera and 3,945 species, including potato, tomato, eggplant, and morning glories.

Solange Knowles

Solange Knowles (born 1986, Houston) is an American R&B singer-songwriter and multimedia artist, sister of Beyoncé. Known for Solo Star, True, the Billboard No. 1 A Seat at the Table (first Grammy, "Cranes in the Sky"), When I Get Home, Saint Heron, and the Lena Horne Prize.

Solange Peters

Solange Peters is a Swiss medical oncologist, professor at the University of Lausanne, who led the ALEX and IPSOS lung-cancer trials and was ESMO president from 2020 to 2022.

Solanine

Solanine (α-solanine, CAS 20562-02-1) is a toxic steroidal glycoalkaloid of nightshade plants, mainly potatoes, with a solanidine aglycone; acute LOAEL 1 mg/kg body weight, heat-stable, concentrated in peel, sprouts, and green tissue.

Solann

Solann is a French neo-folk singer-songwriter, born in Paris in 1999, whose feminist songs like Rome made her a breakthrough star of the 2025 Victoires de la Musique.

Solano County, California

Solano County, California: county established February 18, 1850 as one of the original 27 California counties, named for Chief Solano (Sem Yeto); county seat Fairfield; population 453,491 (2020).

Solanum

Solanum (nightshades) is the largest genus of Solanaceae, about 1,200-1,400 species, cosmopolitan, originating in South America; includes potato, tomato, and eggplant, divided into 13 clades.

Solanum aethiopicum

Solanum aethiopicum, African or scarlet eggplant, garden eggs, bitter tomato: a Solanaceae cultigen domesticated in northeast Africa from Solanum anguivi, with Gilo, Shum, Kumba, and Aculeatum cultivar groups, grown across sub-Saharan Africa for fruits and leaves.

Solanum aviculare

Solanum aviculare (poroporo, kangaroo apple) is a diploid (2n=46) Solanum shrub native to New Zealand, eastern Australia, and New Guinea, with mauve flowers and orange berries, cultivated for solasodine steroid precursors and distinct from the tetraploid S. laciniatum.

Solanum dulcamara

Solanum dulcamara, bittersweet or woody nightshade, a toxic Solanaceae vine native to Eurasia and North Africa, invasive in North America, with red glycoalkaloid berries and EU-approved stem preparations for mild eczema.

Solanum nigrum

Solanum nigrum (black nightshade) is a hexaploid Solanaceae herb native from Europe to temperate East Asia and tropical Africa, with white flowers, dull black berries, solanine glycoalkaloids, and long use in TCM and as cooked food.

Solanum sessiliflorum

Solanum sessiliflorum, cocona, cubiu, topiro, Orinoco apple, or peach tomato: an Amazonian Solanaceae fruit crop native to western Amazonia, grown at 200–1000 m, rich in vitamin C, iron, and bioactive flavonoids, used for juices, jams, and medicine.

Solanum torvum

Solanum torvum, turkey berry, devil's fig, pea eggplant: a prickly Solanaceae shrub native from Mexico to South America and the Caribbean, naturalized pantropically, grown for small edible berries, traditional medicine, and eggplant rootstock.

Solapur (district)

Solapur District (सोलापूर जिल्हा), Maharashtra, India: a Bhima-basin district of 14,895 sq km and 4.3 million people (2011), 11 talukas, headquarters Solapur city; briefly self-governed 9–11 May 1930.

Solapur (सोलापूर)

Solapur (सोलापूर), historically called Sonnalige, is a city in southeastern Maharashtra, India, and its district headquarters, known for its textile industry, the Solapuri chadar bedsheet, and beedi production.