Analyzing Mushroom Structural Patterns of a Highly Compressible and Expandable Hemostatic Foam for Gastric Perforation Repair

© 2024 The Authors. Advanced Science published by Wiley-VCH GmbH..

Nature presents the most beautiful patterns through evolving. Here, a layered porous pattern in golden ratio (0.618) is reported from a type of mushroom -Dictyophora Rubrovalvata stipe (DRS). The hierarchical structure shows a mathematical correlation with the golden ratio. This unique structure leads to superior mechanical properties. The gradient porous structure from outside to innermost endows it with asymmetrical hydrophilicity. A mathematical model is then developed to predict and apply to 3D printed structures. The mushroom is then explored to repair gastric perforation because the stomach is a continuous peristaltic organ, and the perforated site is subject to repeated mechanical movements and pressure changes. At present, endoscopic clipping is ineffective in treating ulcerative perforation with fragile surrounding tissues. Although endoscopic implant occlusion provides a new direction for the treatment of gastric ulcers, but the metal or plastic occluder needs to be removed, requiring a second intervention. Decellularized DRS (DDRS) is found with asymmetric water absorption rate, super-compressive elasticity, shape memory, and biocompatibility, making it a suitable occluder for the gastric perforation. The efficacy in blocking gastric perforation and promoting healing is confirmed by endoscopic observation and tissue analysis during a 2-month study.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - year:2024

Enthalten in:

Advanced science (Weinheim, Baden-Wurttemberg, Germany) - (2024) vom: 04. März, Seite e2306917

Sprache:

Englisch

Beteiligte Personen:

Shu, Zhenzhen [VerfasserIn]
Liu, En [VerfasserIn]
Huang, Yu [VerfasserIn]
Luo, Qiang [VerfasserIn]
Wang, Tongchuan [VerfasserIn]
Li, Xin [VerfasserIn]
Mequanint, Kibret [VerfasserIn]
Yang, Shiming [VerfasserIn]
Xing, Malcolm [VerfasserIn]
Fan, Chaoqiang [VerfasserIn]

Links:

Volltext

Themen:

Asymmetric hemostasis
Gastric perforation
Golden ratio in layered structure
Gradient porous structure
Journal Article
Mathematic modeling for 3D printing
Super-compressive elasticity

Anmerkungen:

Date Revised 05.03.2024

published: Print-Electronic

Citation Status Publisher

doi:

10.1002/advs.202306917

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369294629