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Transforman colchones viejos en aislantes térmicos con hongos: la innovación que apunta a revolucionar la construcción sostenible

Un grupo de investigadores ha conseguido convertir colchones viejos en aislamiento térmico para la construcción utilizando hongos. Esta propuesta innovadora, presentada por la Universidad de Swinburne y difundida por Popular Science, reimagina la gestión de un residuo de gran presencia en los vertederos, y abre nuevas posibilidades para la economía circular y la sostenibilidad en el sector de la edificación.
La acumulación de colchones desechados representa un desafío ambiental de gran escala. Cada año, millones de estos productos terminan en vertederos a nivel global. Según datos citados por Popular Science, un colchón puede tardar hasta 120 años en descomponerse por completo en condiciones de relleno sanitario. Además, su tamaño voluminoso y la mezcla de materiales—espumas, telas y metales—complican el reciclaje, demandando procesos costosos y muchas veces inviables para las plantas de tratamiento tradicionales.
El resultado es la saturación de rellenos sanitarios, donde estos colchones permanecen durante décadas sin degradarse, liberando contaminantes y ocupando espacio necesario para otros residuos.
El reciclaje convencional de colchones enfrenta obstáculos tanto logísticos como técnicos. La separación manual de componentes y la falta de mercados viables para materiales recuperados dificultan la gestión eficiente de estos desechos. Por eso, la búsqueda de soluciones alternativas cobra urgencia, especialmente ante el crecimiento de la industria del descanso y el aumento en la rotación de estos productos.

Frente a este panorama, un equipo de la Universidad de Swinburne, en Australia, ha desarrollado un método novedoso para transformar colchones fuera de uso en un material aislante basado en hongos.
Según detalla Popular Science, el proceso parte del desmontaje de los colchones para separar la espuma de poliuretano, principal residuo, que se desinfecta y tritura, quedando lista para convertirse en el sustrato donde se cultiva el micelio, la red de filamentos vegetativos de los hongos.
El micelio, al crecer sobre la espuma triturada, consume parte del material y lo une en una estructura compacta y ligera. Esta transformación ocurre en condiciones controladas de temperatura y humedad durante solo unas semanas. El resultado es un panel rígido, de baja densidad, en el que el micelio actúa como aglutinante natural y otorga al material propiedades aislantes.
El protagonismo de los hongos radica en su capacidad para descomponer y reorganizar los residuos en compuestos útiles, sin necesidad de adhesivos sintéticos ni procesos industriales contaminantes. Además, el proceso no requiere altas temperaturas ni grandes consumos energéticos, lo que reduce la huella ambiental respecto a los métodos tradicionales de manufactura de aislamientos.

El producto final presenta características técnicas comparables, e incluso superiores, a los materiales de aislamiento térmico convencionales. De acuerdo con Popular Science, los paneles generados con micelio y espuma reciclada muestran una baja conductividad térmica, lo que los hace adecuados para conservar la temperatura interior en edificios y reducir el gasto energético en calefacción o refrigeración.
Durante los ensayos, estos paneles demostraron resistir temperaturas aproximadas a los 1.832 grados Fahrenheit (1.000 ℃), lo que los posiciona como una alternativa eficaz frente a riesgos de incendio y condiciones extremas.
A diferencia de muchos aislantes sintéticos, los paneles de micelio no liberan compuestos tóxicos, son biodegradables y pueden producirse localmente a partir de residuos urbanos. Su resistencia a la humedad y a ciertos patógenos añade ventajas en términos de durabilidad y sanidad, minimizando riesgos para la salud de los ocupantes de los edificios.
Las aplicaciones potenciales de este aislante micológico abarcan desde viviendas hasta infraestructuras comerciales. Su ligereza facilita el transporte y la instalación, mientras que la flexibilidad del proceso permite adaptarlo a diferentes tamaños y formas según necesidad. Además, el ciclo de vida del material cierra un circuito; al concluir su uso, puede compostarse o biodegradarse sin dañar el entorno.

El impacto futuro de esta innovación depende de su capacidad para escalar y ser adoptada por la industria. El equipo de Swinburne visualiza un modelo en el que los centros urbanos recolecten colchones desechados y los transformen en aislantes para nuevas construcciones, cerrando el ciclo de los materiales y reduciendo significativamente la generación de residuos.
La propuesta encaja en las tendencias de economía circular, donde los productos al final de su vida útil se reincorporan al sistema productivo como materia prima, en vez de convertirse en desechos. La posibilidad de replicar este enfoque en distintas ciudades y países abre la puerta a un cambio estructural en la gestión de residuos y la fabricación de materiales de construcción más limpios.
A pesar de los avances, persisten desafíos técnicos y logísticos. El escalado del proceso, la estandarización de la calidad del material y la aceptación por parte de las normativas de construcción son obstáculos que el equipo sigue investigando. Además, la viabilidad económica en comparación con los materiales tradicionales determinará el ritmo de adopción de esta tecnología.
Las proyecciones indican que, si se implementa a gran escala, este método podría reducir notablemente el volumen de colchones enviados a vertederos, disminuir las emisiones asociadas a la producción de aislantes convencionales y fomentar una nueva cultura de aprovechamiento integral de los residuos.
La investigación divulgada por Popular Science muestra que la colaboración entre ciencia, industria y sociedad puede gestar soluciones innovadoras para los retos ambientales contemporáneos.
aislamiento ecológico,micelio,espuma reciclada,materiales sostenibles,biotecnología,construcción verde,innovación,economía circular,reciclaje,paneles
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Iran’s ‘basement’ Chinese drone networks spark fears of sleeper cell attacks on US soil

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Iran is building a decentralized drone warfare capability in Tehran’s apartment building basements, powered by inexpensive technology sourced from China, a leading defense expert has warned.
Draganfly’s Cameron Chell also said that this emerging system — centered on first-person-view (FPV) drones — could pose a threat not only across the Middle East but potentially to the U.S. homeland itself.
«The FPVs are Iran’s Hail Mary because they are very hard to defend, are incredibly effective, and can be delivered in a manner without having to have a central command,» Chell told Fox News Digital.
«So whether it’s the Iranian army, whether it’s militia groups or Iranian patriots, they can all create or procure their own FPVs and get offensive,» Chell said.
EX-CIA STATION CHIEF WARNS US TROOP DEPLOYMENT TO KEY IRANIAN ISLAND COULD BE ‘EXTREMELY RISKY’
Smoke rises after an Iranian drone was intercepted over the Bahrain Financial Harbour towers, which houses the Israeli embassy, amid the U.S.-Israeli conflict with Iran, in Manama, Bahrain, March 6, 2026. Picture taken on a mobile phone. (Stringer/Reuters)
He added that «Iran could be reiterating FPVs and churning out more than 100,000 a month over time.»
«Iran’s got either militias or sleeper cells in the States who can, in my estimation, already build this equipment,» Chell clarified.
Chell’s warning comes as recent incidents in Iraq highlight the growing use of FPVs.
At Baghdad International Airport, Iranian-backed militias operating under the «Iraqi Islamic Resistance» umbrella have launched multiple FPV drone attacks.
Footage released in March 2026 allegedly shows an FPV drone striking a U.S. UH-60M or HH-60M Black Hawk helicopter, while another attack successfully hit a U.S. AN/MPQ-64 Sentinel radar unit at the same base.
«FPVs are a central core theme, and Iran is building these itself, suspecting they’re pulling parts in from China and getting the parts through some pretty porous borders, so it is very difficult to stop that,» Chell said.
IRAN’S DRONE SWARMS CHALLENGE US AIR DEFENSES AS TROOPS IN MIDDLE EAST FACE RISING THREATS

A drone view of the site of an Iranian missile strike on a residential building, after Iran launched missile barrages following attacks by the U.S. and Israel, in Tel Aviv (REUTERS/Roei Kastro)
He warned that Iran’s strategy mirrors what has already occurred in Ukraine, where decentralized drone manufacturing has flourished.
«There will be, or already is, an underground industry for FPV and drone manufacturing, which will or is swelling up inside Iran, the exact same way that we saw it swell up inside Ukraine,» he explained.
«This is going to be happening in people’s homes in Iran, people’s basements, the basements of apartment blocks, where they can construct makeshift assembly lines.»
«I am confident China and Russia are shipping in parts to help support the development of drone assembly or manufacturing capability – which is a de facto decentralized cottage industry,» he warned.
Concerns extend beyond overseas battlefields as about 1,500 Iranians were intercepted at the U.S. border during the Biden administration.
Officials warn the unknown number who evaded detection raises fears of potential «sleeper cells.»
MORE THAN 90% OF IRANIAN MISSILES INTERCEPTED, BUT A DANGEROUS IMBALANCE IS EMERGING

Iran drone swarms threaten U.S. military assets in Middle East region (Iranian Army/WANA (West Asia News Agency)/Handout via REUTERS)
President Trump acknowledged the issue on March 11, saying, «A lot of people came in through Biden with his stupid open border, but we know where most of them are: We’ve got our eye on all of them, I think.»
«It is the beginning of an asymmetric capability that the Iranians will use against their neighbors and U.S. assets in the region, but also the U.S. homeland,» Chell said.
«We may even want to call it terrorist attacks, using FPV’s against their neighbors and practically anywhere in the world,» he added.
«It’s a matter of when we see FPV attacks, probably swarm, probably sophisticated, on U.S. soil.»
«Within the next eight months, the Iranians are going to have sophisticated drone systems that can defeat some RF/radio frequency jamming. They will start to use tactics like swarming or spoofing,» he warned.
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«It will be very, very difficult for the U.S. to take out these little drone factories in the basements of apartment blocks where civilians help. Cutting supply chains will also be difficult.»
«The primary choke point for the Iranians is to establish supply chains from China to have enough supply to constitute precision mass capability and/or consistent, pervasive asymmetric capability,» Chell said before stating that if this happens, «the war between Iran and the U.S. just gets a lot longer.»
war with iran, iran, wars, military tech, military
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Fue una famosa feminista millennial. Sus memorias sobre el poliamor son desgarradoras

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Kagan turns on liberal ally Jackson with footnote jab over free speech

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Justice Ketanji Brown Jackson drew fire from an unlikely colleague on Tuesday over her lone dissent in the Supreme Court’s 8-1 decision finding Colorado’s ban on so-called «conversion therapy» for minors violated free speech rights.
Fellow liberal Justice Elena Kagan criticized Jackson for failing to acknowledge case law that governs when speech can be regulated in the medical field, marking a rare public break between two justices typically aligned in cases centered on high-profile cultural issues.
«Justice Jackson’s dissenting opinion claims that this is a small, or even nonexistent, category,» Kagan wrote in a footnote of a concurring opinion, which Justice Sonia Sotomayor joined. «But even her own opinion, when listing laws supposedly put at risk today, offers quite a few examples.»
Kagan, an Obama appointee, said Jackson’s view «rests on reimagining—and in that way collapsing—the well-settled distinction between viewpoint-based and other content-based speech restrictions.»
SUPREME COURT SKEPTICAL OF «CONVERSION THERAPY» LAW BANNING TREATMENT OF MINORS WITH GENDER IDENTITY ISSUES
Supreme Court nominee Ketanji Brown Jackson testifies during her Senate Judiciary Committee confirmation hearing on Capitol Hill in Washington, Wednesday, March 23, 2022. (AP Photo/Alex Brandon)
The 8-1 decision on Tuesday arose from a lawsuit brought by Kaley Chiles, a licensed Christian therapist, who argued her conversations with youth clients were a form of protected speech. The Colorado government had said the conversations amounted to professional conduct that the state was allowed to regulate.
Jackson’s fiery 35-page dissent, which she read from the bench when the high court announced the opinion, was longer than the majority opinion and Kagan’s concurrence combined.
«Professional medical speech does not intersect with the marketplace of ideas: ‘In the context of medical practice we insist upon competence, not debate,’» Jackson, a Biden appointee wrote, later adding, «Treatment standards exist in America.»
Jackson issued an ominous warning about national implications of the case, as about two dozen other states have laws similar to Colorado’s and will now need to take into account the high court’s ruling.
SUPREME COURT BLOCKS COLORADO’S SO-CALLED ‘CONVERSION THERAPY’ BAN ON FIRST AMENDMENT GROUNDS

The Supreme Court is seen on Friday, Feb. 20, 2026. (Annabelle Gordon/Bloomberg via Getty Images)
«Ultimately, because the majority plays with fire in this case, I fear that the people of this country will get burned,» Jackson said. «Before now, licensed medical professionals had to adhere to standards when treating patients: They could neither do nor say whatever they want.»
One conservative lawyer on social media observed that Kagan seemed «exasperated» by Jackson, who has become known as a verbose justice inclined to tack on lengthy solo dissents to the majority’s opinions in prominent cases. Manhattan Institute’s Ilya Shapiro agreed.
«That should be a separate descriptor of an opinion: concurring, dissenting, expressing exasperation with Justice Jackson,» Shapiro wrote on X.

Justice Elena Kagan (Reuters/Jonathan Ernst)
Kagan joined the eight justices in finding that the Colorado government erred in regulating Chiles’ practice because the state used a 2019 law that only banned therapists from counseling minors if the therapy entailed advising them on how to resist becoming transgender or gay. That amounted to restricting one viewpoint, in violation of the First Amendment, the majority said.
Kagan said that if the law were «content-based» rather than «viewpoint-based,» it would present less of a free speech problem.
«Because the State has suppressed one side of a debate, while aiding the other, the constitutional issue is straightforward,» Kagan said. «It would, however, be less so if the law under review was content-based but viewpoint neutral.»
Jackson argued that Chiles was «not speaking in the ether; she is providing therapy to minors as a licensed healthcare professional.»
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The Supreme Court’s ruling was narrow, as Justice Neil Gorsuch explained in the majority opinion, as it directed the lower court to reexamine the Colorado law and ensure it did not interfere with Chiles’ speech rights.
«The First Amendment stands as a shield against any effort to enforce orthodoxy in thought or speech in this country,» Gorsuch wrote. «It reflects instead a judgment that every American possesses an inalienable right to think and speak freely, and a faith in the free marketplace of ideas as the best means for discovering truth. However well-intentioned, any law that suppresses speech based on viewpoint represents an ‘egregious’ assault on both of those commitments.»
supreme court, colorado, federal judges, first amendment
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