{"ok":true,"nota":{"id":"abedc8f95d81e6f3","slug":"un-nanomaterial-promete-sacar-manganeso-del-agua-de-riego-y-liberarlo--abedc8","titulo":"Un nanomaterial promete sacar manganeso del agua de riego y liberarlo despacio en las raíces","resumen":"Un marco teórico propone un nanocompuesto a base de polianilina y grafeno que captura manganeso de escorrentías agrícolas y lo libera en la rizósfera. Los autores reportan buenos resultados de captura y un aumento de rendimiento en pruebas.","fuente":"zenodo","fuenteNombre":"Zenodo · Investigación abierta","color":"#1682d4","autor":"el-rakhawi, mohamed kamal arafa","url":"https://doi.org/10.5281/zenodo.23716873","imagen":"/hoy/portada/abedc8f95d81e6f3","tema":"ciencia","subtemas":["remediación ambiental","agricultura","nanomateriales","contaminación de suelos","manganeso"],"entidades":["El-Rakhawi","Zenodo"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-28T00:45:19.000Z","indexTs":"2026-10-30T00:18:54.681Z","hash":"da645a230956444be56bf1cd15fe11877adf551856818de37bc79615e38a2474","tsa":{"time":"Oct 30 00:19:42 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"El manganeso en exceso contamina suelos y agua, pero también es un nutriente que las plantas necesitan, y eso hace difícil manejarlo. Si una tecnología así funcionara a escala, podría reducir la contaminación de campos y cuencas que abastecen a ciudades. Pero el trabajo es un marco conceptual con cálculos propios y con pruebas que no están validadas por otros laboratorios, así que todavía es una promesa.","quienFirma":"Autor independiente (El-Rakhawi); publicación en Zenodo","confianza":"preprint","consulta":null},"sello":{"hash":"da645a230956444be56bf1cd15fe11877adf551856818de37bc79615e38a2474","sello":"4ef90e6b7011a9dd88edc974a77b1e9e5007a8cfb4f81e46c2f1107163b2d72c","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6596285,"aleatorio":"c081b28c47de1b3ebaff2ab6fadd94a4e1d5df8956cce1796159e8f3a3c84477","tiempo":"2026-10-30T00:19:30.000Z"},"nist":{"cadena":2,"pulso":2005076,"salida":"D1D471A81853AED712E452A7D73F82257D9E5310F62C5D5691DE99C64EC2110FF870FD06ACCC0EFE8D43CE6737ABC2C8D9860CE82BDD7542A5890EDDB8765434","tiempo":"2026-10-30T00:18:00.000Z"},"noAntes":"2026-10-30T00:19:30.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 30 00:19:42 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"EL-RAKHAWI UNIFIED FRAMEWORK FOR CLOSED-LOOP MANGANESE REMEDIATION AND STRESS-RESILIENT AGRICULTURE VIA SMART POLYANILINE-BIOCOMPOSITE NANOFILTERS A Dual-Action Stimuli-Responsive System for Selective Manganese Capture from Agricultural Runoff and Controlled Rhizosphere Release to Enhance Crop Climate Resilience","descripcion":"<p>The El-Rakhawi Unified Framework for Closed-Loop Manganese Remediation and Stress-Resilient Agriculture (DOI: 10.5281/zenodo.23716873) resolves the manganese paradox through a revolutionary PANI-GO-CS nanocomposite system.</p> <p>Key innovations: (1) Coordinate covalent bonding mechanism via nitrogen/oxygen lone pairs for selective Mn&sup2;⁺ capture at neutral pH (6.5-8.5), correcting previous electrostatic models; (2) pH-triggered release (<5.5) as primary mechanism with root enzymes as secondary biodegradation pathway; (3) Graphene Oxide fully encapsulated within biodegradable matrix ensuring EPA/EFSA compliance; (4) Mathematically rigorous CLMEI = (Yield_Stress/Yield_Control) &times; (1 + Mn_uptake/Mn_applied) &times; (C_initial/C_final)^0.5, enabling realistic target >1.8.</p> <p>Results: >95% Mn&sup2;⁺ capture from runoff, >80% controlled rhizosphere release, 25% yield increase u","pubDate":"2026-10-28T00:45:19Z","url":"https://doi.org/10.5281/zenodo.23716873"},"indexado":"2026-10-30T00:18:54.681Z"}}