{"id":9435,"date":"2020-09-03T12:59:12","date_gmt":"2020-09-03T17:59:12","guid":{"rendered":"https:\/\/saluddigital.com\/?p=9435"},"modified":"2025-10-21T14:30:54","modified_gmt":"2025-10-21T20:30:54","slug":"desarrollan-metodo-que-aprovecha-nanoparticulas-para-convertir-energia-luminica-en-calor","status":"publish","type":"post","link":"https:\/\/saluddigital.com\/en\/avance-de-la-ciencia\/desarrollan-metodo-que-aprovecha-nanoparticulas-para-convertir-energia-luminica-en-calor\/","title":{"rendered":"Scientists have developed a method that uses nanoparticles to convert light energy into heat"},"content":{"rendered":"
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This method promises to be useful for future biomedical applications.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Scientists developed a method involving terahertz radiation for monitoring temperature changes when light. This technology works through particles that absorb light and convert it into localized heat sources, this innovation could be used in photothermal therapy, one of the new types of cancer treatment that involves focusing infrared laser light on nanoparticles near the treatment area.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Localized heating in these systems should be carefully monitored as the living tissue is delicate. There is a possibility of severe burns and tissue damage if unwanted heating is applied to the wrong site. The ability to control temperature increases is crucial in the development of this technology. Several approaches have been attempted, but all have drawbacks of various types, including the need to insert probes or inject additional materials.<\/p>

In December 2019, reports on the development of this method to measure temperatures in this type of system, using terahertz radiation, were published in APL Photonic.<\/em> To carry out this study, suspensions of gold nanobars of various sizes, placed in small buckets of water, were used. These were illuminated by a laser focused on a specific point in the bucket.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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\u201cWe are able to map out the temperature distribution by scanning the cuvette with terahertz radiation, producing a thermal image,\u201d said co-author Junliang Dong.<\/p>

\"By combining measurements of temperature transients in time and thermal images in space at terahertz frequencies, we have developed a noncontact and noninvasive technique for characterizing these nanoparticles,\" co-author Roberto Morandotti said.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/i><\/span>\n\t\t\t\t\t\t\t\t<\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tBIBLIOGRAPHY<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t

SCIENCE DAILY<\/strong><\/p>

https:\/\/www.sciencedaily.com\/releases\/2019\/12\/191217114234.htm<\/a><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Este m\u00e9todo promete ser \u00fatil para futuras aplicaciones en biom\u00e9dica. Cient\u00edficos desarrollaron un m\u00e9todo que involucra radiaci\u00f3n de terahercios para el monitoreo de cambios de temperatura. Esta tecnolog\u00eda funciona a trav\u00e9s de part\u00edculas que absorben la luz y la convierten en fuentes de calor localizadas, esta innovaci\u00f3n podr\u00eda ser utilizada en terapia fotot\u00e9rmica, uno de los nuevos tipos de tratamiento contra el c\u00e1ncer que consiste en enfocar luz laser infrarroja sobre nanopart\u00edculas cercanas a la zona de tratamiento. El calentamiento localizado en estos sistemas debe controlarse cuidadosamente ya que el tejido vivo es delicado. Existe la posibilidad de que se produzcan quemaduras graves y da\u00f1os en los tejidos si se aplica un calentamiento no deseado en el sitio incorrecto. La capacidad de controlar los aumentos de temperatura es crucial en el desarrollo de esta tecnolog\u00eda. Se han intentado varios enfoques, pero todos poseen inconvenientes de diversos tipos, incluida la necesidad de insertar sondas o inyectar materiales adicionales. En diciembre de 2019, fue publicada en APL Photonic los informes sobre el desarrollo de este m\u00e9todo para medir las temperaturas en este tipo de sistemas, utilizando radiaci\u00f3n de terahercios. Para realizar este estudio se utilizaron suspensiones de nanobarras de oro de varios tama\u00f1os, colocadas en peque\u00f1as cubetas con agua. Estas fueron iluminadas por un l\u00e1ser enfocado en un punto espec\u00edfico de la cubeta. \u201cPodemos trazar un mapa de la distribuci\u00f3n de temperatura escaneando la cubeta con radiaci\u00f3n de terahercios, produciendo una imagen t\u00e9rmica\u201d, dijo el coautor Junliang Dong. \u201cAl combinar las mediciones de las temperaturas transitorias en el tiempo y las im\u00e1genes t\u00e9rmicas en el espacio a frecuencias de terahercios, hemos desarrollado una t\u00e9cnica sin contacto y no invasiva para caracterizar estas nanopart\u00edculas\u201d, dijo el coautor Roberto Morandotti. BIBLIOGRAF\u00cdA SCIENCE DAILY https:\/\/www.sciencedaily.com\/releases\/2019\/12\/191217114234.htm<\/p>","protected":false},"author":1,"featured_media":9436,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[152,154,3400,1418],"tags":[145],"class_list":["post-9435","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-avance-de-la-ciencia","category-comunidades-conectadas","category-diagnostico","category-resena-de-publicaciones-cientificas","tag-noticias"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/saluddigital.com\/en\/wp-json\/wp\/v2\/posts\/9435","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/saluddigital.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/saluddigital.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/saluddigital.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/saluddigital.com\/en\/wp-json\/wp\/v2\/comments?post=9435"}],"version-history":[{"count":0,"href":"https:\/\/saluddigital.com\/en\/wp-json\/wp\/v2\/posts\/9435\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/saluddigital.com\/en\/wp-json\/wp\/v2\/media\/9436"}],"wp:attachment":[{"href":"https:\/\/saluddigital.com\/en\/wp-json\/wp\/v2\/media?parent=9435"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/saluddigital.com\/en\/wp-json\/wp\/v2\/categories?post=9435"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/saluddigital.com\/en\/wp-json\/wp\/v2\/tags?post=9435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}