Related Experiment Video
Updated: Feb 11, 2026
09:37
Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold
Published on: October 23, 2015
13.5K
A LDH-Based Supramolecular Photosensitizer-Functionalized Bioactive Glass Scaffold for Integrated Postoperative
Tao Wang1, Yixin Bian2, Tingting Hu3
1State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, P. R. China.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|February 9, 2026
Summary
This study introduces a novel composite scaffold (BGS/I-LDH) for combined bone cancer treatment and regeneration. The material effectively generates reactive oxygen species for photodynamic therapy and promotes significant bone growth.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Oncology
Background:
- Layered double hydroxide (LDH)-based materials show potential in photodynamic therapy (PDT) and bone regeneration.
- Synergistic approaches for osteosarcoma treatment and bone reconstruction are highly sought after.
Purpose of the Study:
- To develop a bifunctional composite scaffold (BGS/I-LDH) for integrated osteosarcoma treatment and bone regeneration.
- To functionalize bioactive glass scaffolds (BGS) with I-IPA-intercalated MgZnAl-LDH.
Main Methods:
- Functionalization of bioactive glass scaffold (BGS) with 5-iodoisophthalic acid (I-IPA)-intercalated MgZnAl-LDH.
- Evaluation of reactive oxygen species (ROS) generation under 1270 nm laser irradiation.
- Assessment of anti-osteosarcoma and osteogenic properties in vitro and in vivo.
Main Results:
- The BGS/I-LDH scaffold demonstrated high-efficiency ROS generation with a singlet oxygen quantum yield of 1.53.
- Sustained release of Mg2+ and Zn2+ ions from I-LDH.
- Significant improvements in bone volume (3.8-fold), bone mineral density (3.0-fold), and new bone mass (11.4-fold) compared to pristine BGS.
Conclusions:
- The developed BGS/I-LDH composite scaffold offers a promising bifunctional material for synergistic osteosarcoma treatment and bone regeneration.
- The scaffold exhibits superior photodynamic efficacy and osteogenic potential compared to existing modified bioactive glass scaffolds.
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