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Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release
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Hidrogeles de Coordinación de Tierras Raras que Permiten Sistemas de Bucle Cerrado Autoalimentados y

Kunda Yao1, Yue Shen1, Jingtai Li2

  • 1School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, China.

Small (Weinheim an der Bergstrasse, Germany)
|January 12, 2026
PubMed
Resumen

Este estudio presenta un hidrogel luminiscente autoalimentado para electrónica flexible. Combina la recolección de energía y la fluorescencia sintonizable para aplicaciones de visualización y seguridad portátiles y autosostenidas.

Palabras clave:
hidrogelmultifuncionaltierras rarasautoalimentacióntriboeléctrico

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Área de la Ciencia:

  • Ciencia de Materiales
  • Nanotecnología
  • Optoelectrónica

Sus antecedentes:

  • Los hidrogeles fluorescentes de tierras raras (RE) están limitados por la excitación ultravioleta (UV) externa.
  • Esto dificulta su uso en sistemas electrónicos portátiles y autosostenidos.

Objetivo del estudio:

  • Desarrollar un hidrogel multifuncional con fluorescencia sintonizable, conductividad iónica y extensibilidad.
  • Crear una plataforma de hidrogel autoalimentada y auto-luminiscente para dispositivos optoelectrónicos integrados.

Principales métodos:

  • Se sintetizó hidrogel dopado con Eu/Tb mediante el injerto mediado por EDC/NHS de terpiridina (TPY) sobre polietilenimina (PEI) y reticulación por congelación-descongelación.
  • Se incorporó NaCl para mejorar la conductividad iónica mediante un efecto de salting-out.
  • Se integró el hidrogel en un nanogenerador triboeléctrico (RE-TENG) para la recolección de energía.

Principales resultados:

  • Se logró una densidad de potencia máxima de 0.22 W m-2 en el RE-TENG.
  • Se demostró una plataforma de hidrogel completamente autoalimentada y auto-luminiscente acoplando hidrogeles dopados con RE con RE-TENGs.
  • Se cargaron con éxito condensadores y se alimentaron LEDs UV para la visualización de patrones fluorescentes encriptados sin energía externa.

Conclusiones:

  • Se estableció un nuevo paradigma para fusionar la recolección de energía con la visualización de información.
  • Abrió oportunidades para la próxima generación de optoelectrónica vestible y segura.
  • La plataforma de hidrogel desarrollada ofrece una solución autosostenida para tecnologías avanzadas de visualización y seguridad.