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Hidrogel de Premna Microphylla-Nanopartículas de Plata Bioingenierizado para el Tratamiento de Heridas

Pengxiang Xu¹, Yilong Li^1,2, Aidi Tong¹

¹College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, China.

Bioengineering (Basel, Switzerland)

|January 28, 2026

Resumen

Este estudio desarrolló un hidrogel vegetal infundido con nanopartículas de plata (AgNPs-PMT) para tratar heridas diabéticas. El novedoso hidrogel demostró una actividad antibacteriana significativa contra MRSA y promovió una rápida curación de heridas en modelos de diabetes.

Área de la Ciencia:

Ciencia de Biomateriales
Investigación sobre Curación de Heridas
Nanotecnología

Sus antecedentes:

Las heridas diabéticas presentan retraso en la curación y alto riesgo de infección.
El tratamiento eficaz requiere propiedades antibacterianas mejoradas y modulación del microambiente de la herida.
El hidrogel de Premna microphylla Turcz (PMT) muestra potencial pro-curación y antibacteriano.

Objetivo del estudio:

Desarrollar un hidrogel novedoso que integre nanopartículas de plata (AgNPs) en el hidrogel PMT para mejorar el tratamiento de heridas diabéticas.
Evaluar la eficacia antimicrobiana de AgNPs-PMT contra Staphylococcus aureus resistente a la meticilina (MRSA).
Evaluar el rendimiento in vivo de la curación de heridas de AgNPs-PMT en un modelo de herida diabética.

Principales métodos:

Síntesis de nanopartículas de plata (AgNPs) y su integración en el hidrogel de Premna microphylla Turcz (PMT).
Evaluación in vitro de la actividad antibacteriana de AgNPs-PMT contra MRSA.
Evaluación in vivo de AgNPs-PMT en un modelo de herida diabética, monitorizando la eliminación bacteriana, la neovascularización, la deposición de colágeno y la tasa de cierre de la herida.

Principales resultados:

AgNPs-PMT exhibió un efecto de eliminación in vitro significativo sobre MRSA, logrando una eficiencia antibacteriana del 95,6%.
Los estudios in vivo demostraron una eliminación bacteriana eficiente en el sitio de la herida.
AgNPs-PMT promovió la neovascularización, la formación de colágeno y el desarrollo de tejido de granulación, acelerando la curación de la herida.

Conclusiones:

El hidrogel AgNPs-PMT posee potentes propiedades antibacterianas contra MRSA.
El hidrogel desarrollado promueve eficazmente la curación de heridas diabéticas crónicas al modular el microambiente de la herida y combatir la infección.
AgNPs-PMT muestra un potencial significativo como agente terapéutico para el tratamiento de heridas diabéticas infectadas.

Palabras clave:

Premna microphylla Turcz infección bacteriana heridas diabéticas hidrogel vegetal

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