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Related Concept Videos

Bone Remodeling01:40

Bone Remodeling

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.
Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell types that...
Bone Remodeling and Repair01:31

Bone 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...
Bleeding in Fresh Concrete01:22

Bleeding in Fresh Concrete

Bleeding in fresh concrete occurs when water from the mix rises to the surface. This happens because the mix's solid components fail to retain all the water as they settle, leading to separation where water collects at the top. The severity of bleeding can be measured by assessing the total settlement or by noting the decrease in height per unit height of concrete.
Bleeding can cause several issues in the concrete structure. Sometimes, the rising water gets trapped beneath large aggregate...
Plasticizers01:31

Plasticizers

Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Superplasticizers01:30

Superplasticizers

Superplasticizers are advanced admixtures that enhance the workability of concrete by lowering the water content without compromising the strength of the material. These substances are highly effective water reducers, improving concrete flow, making it easier to work with, and enabling concrete to reach inaccessible areas or densely reinforced sections without mechanical vibration. The key components in superplasticizers are either sulfonated melamine or naphthalene formaldehyde condensates,...

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Related Experiment Video

Updated: Jun 28, 2026

Biological Compatibility Profile on Biomaterials for Bone Regeneration
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Hydrogels for Bone Regeneration: Properties, Additives, Preclinical and Clinical Applications.

Nesya Graupe1,2, Saliha Ahmad1,3, Ahmad Zia4

  • 1Bio-Nanotechnology and Biomaterials (BNB) Lab, New York Institute of Technology, Old Westbury, NY 11568, USA.

Gels (Basel, Switzerland)
|November 26, 2025
PubMed
Summary

Hydrogels show promise for bone repair, offering an alternative to traditional bone grafts and prostheses. These advanced materials enhance healing with controllable properties and biological integration.

Keywords:
biocompatibilitybone regenerationfracture repairhydrogelstissue engineering

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Orthopedic Surgery

Background:

  • Severe bone loss from trauma, fractures, tumor resections, and disease often requires surgical intervention.
  • Conventional treatments like bone grafts and metal prostheses have limitations, including donor scarcity, immune rejection, inflammation, and pain.
  • Hydrogels present a promising alternative due to their tunable mechanical properties, biocompatibility, and similarity to the extracellular matrix.

Purpose of the Study:

  • To review recent advancements in hydrogel development for bone repair.
  • To summarize the structural design and biological functionality of these hydrogels.
  • To discuss preclinical and clinical applications of hydrogels in bone regeneration.

Main Methods:

  • Literature review of recent scientific publications on hydrogels for bone repair.
  • Analysis of hydrogel structural designs and their impact on biological functionality.
  • Compilation of data on preclinical and clinical studies evaluating hydrogel efficacy.

Main Results:

  • Hydrogels can be engineered with specific mechanical properties and compositions to mimic bone tissue.
  • Incorporation of growth factors, hormones, and drugs into hydrogels can accelerate bone healing.
  • Numerous preclinical studies demonstrate successful bone regeneration with hydrogels, with emerging clinical applications.

Conclusions:

  • Hydrogels represent a significant advancement in bone tissue engineering, offering a versatile platform for bone defect treatment.
  • Further research and clinical trials are essential to fully realize the potential of hydrogels in orthopedic applications.
  • Hydrogel-based therapies hold the potential to overcome the limitations of current bone repair strategies.