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Adhesivo inteligente inspirado en el pulpo con rigidez ajustable para la adhesión en superficies irregulares en el
Hongyang Ma1, Chao Wu2, Haoxiang Ma3
1Key Laboratory of Agricultural Functional Molecule Design and Utilization of Heilongjiang Province, College of Arts and Sciences, Northeast Agricultural University, Harbin, 150030, China.
Small (Weinheim an der Bergstrasse, Germany)
|August 25, 2025
Resumen
Los investigadores desarrollaron un adhesivo inteligente fotorresponsivo (PSA) inspirado en los pulpos. Este material de rigidez ajustable ofrece una adhesión significativamente más fuerte en superficies irregulares y en el agua, superando a los adhesivos bioinspirados existentes.
Área de la Ciencia:
- Ciencias de los materiales
- Biomimética
- Ciencia de los Polímeros
Sus antecedentes:
- Los adhesivos inspirados en el pulpo son prometedores, pero carecen de fuerza de adhesión debido a la rigidez incontrolable, especialmente en superficies irregulares.
- Los adhesivos bioinspirados existentes luchan por igualar las capacidades de adhesión de los tejidos vivos.
Objetivo del estudio:
- Desarrollar un adhesivo inteligente fotorresponsivo (PSA) con rigidez ajustable, imitando las características de los tentáculos del pulpo.
- Mejorar la fuerza de adhesión y la funcionalidad en diversas superficies, incluidos los entornos submarinos.
Principales métodos:
- Se utilizó un polímero de memoria de forma (SMP) con propiedades de conversión fototérmica para crear el PSA.
- Aprovechó el rendimiento de la memoria de forma de SMP para la rigidez ajustable, permitiendo el contacto conforme, el bloqueo de forma y la liberación activa.
- Propiedades hidrofóbicas incorporadas para una aplicación versátil en el aire y bajo el agua.
Principales resultados:
- El PSA demostró fortalezas de adhesión significativamente mejoradas, aproximadamente 18 veces más altas en el aire y 11 veces más altas bajo el agua en comparación con los adhesivos tradicionales inspirados en pulpos.
- Se logra una rigidez controlable para el contacto conforme, el bloqueo de la forma y el desprendimiento activo.
- Funcionó eficazmente en varias superficies tanto en condiciones secas como húmedas.
Conclusiones:
- El adhesivo inteligente fotorresponsivo desarrollado ofrece una solución novedosa para la adhesión de alta resistencia en entornos difíciles.
- Esta tecnología tiene un potencial sustancial para aplicaciones en la producción industrial, agarres blandas, monitoreo médico y vida cotidiana.
- Abre nuevas vías para el desarrollo de materiales adhesivos avanzados mediante la combinación de biomimética y funcionalidades de polímeros inteligentes.
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