Related Experiment Video
Updated: Jul 30, 2026
09:35
Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect
Published on: September 11, 2015
9.7K
Natural polymers-based surface engineering of bone scaffolds - A review
K Sathiya1, Srinidhi Ganesamoorthi1, Sahithya Mohan1
1Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India.
International Journal of Biological Macromolecules
|October 26, 2024
Summary
Bone tissue engineering (BTE) uses natural polymers to modify scaffold surfaces, improving bone regeneration. This review analyzes methods for creating advanced bone scaffolds for critical-sized defects.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Tissue Engineering
Background:
- Critical-sized bone defects pose significant healthcare challenges.
- Bone tissue engineering (BTE) offers innovative solutions for bone repair.
- Scaffold surface engineering is vital for mimicking the bone microenvironment.
Purpose of the Study:
- To review natural polymer-based surface modification strategies for bone scaffolds.
- To analyze methods for enhancing cellular responses in bone regeneration.
- To explore future directions in developing advanced bone regenerative scaffolds.
Main Methods:
- Analysis of natural polymers (collagen, chitosan, gelatin, hyaluronic acid, alginate).
- Review of surface modification techniques: physical adsorption, covalent immobilization, electrospinning, layer-by-layer assembly.
- Examination of scaffold types: metallic, ceramic, and polymeric.
Main Results:
- Natural polymer surface engineering significantly enhances cellular adhesion, proliferation, and osteogenic differentiation.
- Various modification strategies effectively replicate the bone microenvironment.
- Characterization and preclinical data support the efficacy of these engineered scaffolds.
Conclusions:
- Natural polymer-based surface engineering is a promising approach for BTE.
- Advanced surface modifications can lead to next-generation bone scaffolds.
- Further research can optimize these strategies for improved bone regenerative capabilities.
Related Concept Videos
01:55Bone Structure
Within the skeletal system, the structure of a bone, or osseous tissue, can be exemplified in a long bone, like the femur, where there are two types of osseous tissue: cortical and cancellous.
01:18The Bone Matrix
Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in acid or...
01:31Bone Remodeling and Repair
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...
01:15Reinforced Brick Masonry
Reinforced brick masonry is an advanced construction technique that enhances the structural integrity of brick walls by incorporating steel reinforcements. These reinforcements are either placed within the hollow cores of bricks or sandwiched between two layers of masonry, known as wythes, and are then secured in place with grout. Grout is a fluid mixture composed of Portland cement, aggregate, and water, providing the necessary bonding agent for the steel and brick.
To fortify brick walls...
To fortify brick walls...
01:22Fiber Reinforced Concrete
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
01:20Prestressed Concrete
Prestressed concrete is a construction technique designed to enhance the strength and durability of concrete structures. This method involves the application of a pre-set tension to high-strength steel strands used as reinforcement before the concrete is subjected to its working loads. The primary aim of prestressing is to place the concrete in a state of compression, in order to counteract the tensile forces it will experience in service. This pre-compression helps prevent crack formation in...