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Related Concept Videos

Spongy Bone01:09

Spongy Bone

7.6K
All bones comprise an outer layer of compact bone, and an interior made up of spongy bone tissue, also called cancellous or trabecular bone. In long bones, spongy bone tissue is mainly found in the interior of the epiphyses (broad ends of the bone).
Spongy bone is more porous, and less dense compared to compact bone. It is composed of concentric lamellae that are arranged irregularly to form the trabecular network. In some bones, the spaces between trabeculae contain red marrow, where...
7.6K
Compact Bone01:27

Compact Bone

16.2K
Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
16.2K
Bone Disorders01:29

Bone Disorders

5.1K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
5.1K
The Hyoid Bone01:12

The Hyoid Bone

4.8K
The hyoid bone is a small U-shaped bone located in the upper neck at the level of the inferior mandible, with its tips pointing posteriorly. It does not directly articulate with any other bone in the body. The hyoid acts as the attachment site for the tongue, the larynx, and the pharynx. It is held in position by a series of small muscles attached from above or below. These muscles help to move the hyoid up/down or forward/back in coordination with movements of the tongue, larynx, and pharynx...
4.8K
Bone Structure01:55

Bone Structure

51.6K
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.
51.6K
Bone Remodeling01:40

Bone Remodeling

40.3K
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
40.3K

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Updated: Jan 21, 2026

Use of Human Perivascular Stem Cells for Bone Regeneration
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Use of Human Perivascular Stem Cells for Bone Regeneration

Published on: May 25, 2012

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Nanostructured Surface Modification to Bone Implants for Bone Regeneration.

Quan Wang, Yixing Huang, Zhiyong Qian

    Journal of Biomedical Nanotechnology
    |July 30, 2019
    PubMed
    Summary
    This summary is machine-generated.

    Nanostructured surfaces on bone implants enhance bone regeneration by controlling cell behavior and immune response. This review details how surface properties like nanotopography improve osseointegration and reduce inflammation.

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    Biological Compatibility Profile on Biomaterials for Bone Regeneration
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    Biological Compatibility Profile on Biomaterials for Bone Regeneration

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    Area of Science:

    • Biomaterials Science
    • Tissue Engineering
    • Nanotechnology

    Background:

    • Bone defect repair relies on bone substitutes acting as scaffolds.
    • Orthopedic implant success is hindered by poor integration, inflammation, and infection.
    • Surface properties of biomaterials critically influence cellular behavior and bone healing.

    Purpose of the Study:

    • To review nanostructured surface modifications for bone implants.
    • To explore how controlled physicochemical properties influence cell behavior and bone regeneration.
    • To focus on the impact of nanotopographies on osseointegration and immune response.

    Main Methods:

    • Review of advances in nanofabrication for surface modification.
    • Analysis of how surface properties (roughness, wettability, charge, topography) modulate cell behavior.
    • Examination of nanotopography effects on cellular processes and immune responses.

    Main Results:

    • Nanostructured surfaces can effectively modulate osteogenesis-related and immune cells.
    • Controlled nanotopographies enhance cell recruitment, adhesion, osteogenic differentiation, and mineralization.
    • Surface modifications show potential for improved osseointegration and antibacterial activity.

    Conclusions:

    • Nanofabrication offers precise control over bone implant surface properties.
    • Nanostructured surfaces are promising for improving orthopedic implant performance and bone regeneration.
    • Targeting cellular and immune responses via nanotopography is key for enhanced bone integration.