Related Experiment Video
Updated: Mar 17, 2026

Polyelectrolyte Complex for Heparin Binding Domain Osteogenic Growth Factor Delivery
Published on: August 22, 2016
Bone Healing Promotion by Negatively Charged Polysterene Microspheres.
Eitan Bar Droma1, Ruth Shaco-Levy, Oleg Sukmanov
1*Oral and Maxillofacial Surgery Unit †Pathology Department, Soroka Medical Center, Beer Sheba ‡Department of Pathology, Wolfson Medical Center, Holon §Plastic Surgery Department ||Craniofacial Surgery Unit, Plastic Surgery Department, Soroka Medical Center, Beer Sheba, Israel.
Negatively charged polystyrene microspheres show potential for enhancing bone healing. This preliminary study in pigs suggests a new therapeutic avenue for bone regeneration, warranting further investigation.
Area of Science:
- Biomaterials Science
- Orthopedic Surgery
- Regenerative Medicine
Background:
- Bone healing is predictable under optimal conditions but challenging when impaired by factors like poor blood supply or immobilization.
- Current therapeutic options for disturbed bone healing are limited, often necessitating surgical intervention.
- Electrical charge distribution during callus formation influences bone healing, with prior research indicating positive effects of negatively charged materials.
Purpose of the Study:
- To evaluate the efficacy of a commercial device containing negatively charged polystyrene microspheres in promoting bone healing.
- To assess the potential of these microspheres as a standalone treatment or adjunct to bone graft materials in a porcine model.
Main Methods:
- A preliminary study was conducted using a porcine model.
- The study investigated the effects of a commercial device composed of negatively charged polystyrene spheres on bone healing.
Main Results:
- The preliminary findings suggest that negatively charged polystyrene microspheres may promote bone healing.
- The observed effects indicate potential for both monotherapy and combination therapy with bone grafts.
Conclusions:
- Negatively charged polystyrene microspheres demonstrate preliminary promise for enhancing bone healing.
- Further large-scale animal studies and clinical trials are required to validate these findings and establish clinical utility.

