{"ok":true,"nota":{"id":"80f811497876e26c","slug":"una-lampara-led-ultravioleta-elimino-el-99-99-de-las-bacterias-del-agu-80f811","titulo":"Una lámpara LED ultravioleta eliminó el 99,99% de las bacterias del agua, aun con agua turbia","resumen":"Investigadores construyeron un prototipo de purificación de agua con LED ultravioleta de 275 nm en flujo continuo y probaron su efecto sobre Escherichia coli. Lograron una inactivación de 4,64 log con una dosis de 854 mJ/cm², y el resultado no cambió con turbidez de hasta 1000 NTU.","fuente":"scielo-ar","fuenteNombre":"SciELO Argentina","color":"#1f7a4d","autor":"Zambiazi,Eliziane T, Mattiello,Emanoela, Bartossewiez,Maité","url":"http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-75872026000100001","imagen":"/hoy/portada/80f811497876e26c","tema":"ciencia","subtemas":["potabilización de agua","luz ultravioleta","led uvc","escherichia coli","saneamiento rural"],"entidades":["SciELO Argentina"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-14T00:00:00.000Z","indexTs":"2026-10-21T22:32:09.986Z","hash":"3bb7dc6b47a93e876c491588d2090252298056637813719e4b5467153f338c1a","tsa":{"time":"Oct 21 22:33:08 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"motor","registro":"hallazgo","porQueImporta":"Un equipo así podría llegar a potabilizar agua en lugares sin red, como zonas rurales o comunidades aisladas, sin cloro ni químicos. Para una familia del conurbano o del interior, la diferencia entre tomar agua con coliformes o no es de salud directa. El estudio todavía es un prototipo de laboratorio: falta ver cuánto cuesta, cuánta energía usa y si dura en condiciones reales de uso.","quienFirma":"SciELO Argentina (revista científica argentina)","confianza":"revisado","consulta":{"pregunta":"¿Usarías agua tratada con luz UV en vez de cloro?"}},"sello":{"hash":"3bb7dc6b47a93e876c491588d2090252298056637813719e4b5467153f338c1a","sello":"599901aff96da5dbe3848a6622fb87e1c9ad52365c3b0afcf3fdeeb0f85ba200","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6573031,"aleatorio":"c811e75b3549496e10e7c490d0908bfb67f3c2c9e63f734658f3881c77207d2e","tiempo":"2026-10-21T22:32:30.000Z"},"nist":{"cadena":2,"pulso":1993721,"salida":"6011E3BEE13438EC0129CE2580EA4ECD1C15D84A361432E8FD3AE15EFB11694CE035F29BB5F9449F0B687A830D74AFCB59F22F3258A044B9FFA3E34EA9D035BB","tiempo":"2026-10-21T22:32:00.000Z"},"noAntes":"2026-10-21T22:32:30.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 21 22:33:08 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Water disinfection using UVC-LED in a continuous flow reactor","descripcion":"Abstract The application of ultraviolet light (UV) using Light-Emitting Diodes (LED) is a technology with the potential to inactivate a wide range of microorganisms and may represent a promising possibility for water disinfection. This research aimed to study the development and validation of UVC-LED equipment for water disinfection under different turbidity levels, followed by its application in water from different sources. A continuous flow prototype was built with a 275 nm LED, and the inactivation of Escherichia coli was evaluated. A logarithmic inactivation value of 4.64 was observed at a UV dose of 854 mJ cm-2, with a reactivation rate of only 0.03%. No significant difference was observed in bacterial inactivation among waters with different turbidity levels (p<0.05), demonstrating the efficiency of the equipment for treating water levels of up to 1000 NTU. After UV treatment, cou","pubDate":"2026-10-14","url":"http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-75872026000100001"},"indexado":"2026-10-21T22:32:09.986Z"}}