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Related Concept Videos

Polymers02:34

Polymers

41.2K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
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Polymers02:34

Polymers

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Polymer Classification: Architecture01:14

Polymer Classification: Architecture

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Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
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Polymer Classification: Crystallinity01:21

Polymer Classification: Crystallinity

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Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
4.0K
Polymer Classification: Stereospecificity01:26

Polymer Classification: Stereospecificity

3.3K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
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Polymers: Defining Molecular Weight01:01

Polymers: Defining Molecular Weight

3.9K
Unlike small molecules with definite molecular weights, polymers are a mixture of individual polymer chains of varying lengths, each with a unique molecular weight.  So, the molecular weight of a polymer is expressed as an average value based on the average size of the polymer chains. The two most common forms of averages used for polymers are the number average molecular weight and weight average molecular weight.
The number average molecular weight (Mn) is the summation of the number...
3.9K

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Updated: Feb 11, 2026

Synthesis of Keratin-based Nanofiber for Biomedical Engineering
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Polymer-Based Electrospun Nanofibers for Biomedical Applications.

Abdullah M Al-Enizi1, Moustafa M Zagho2, Ahmed A Elzatahry3

  • 1Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. amenizi@ksu.edu.sa.

Nanomaterials (Basel, Switzerland)
|April 21, 2018
PubMed
Summary

Electrospinning fabricates polymer nanofibers with unique properties for diverse applications. This review highlights its biomedical potential in wound dressing, drug delivery, and tissue engineering, alongside future prospects.

Keywords:
blood vesselsbonedrug releaseelectrospinningmedical prosthesesnanofiberstissue engineeringwound dressing

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Area of Science:

  • Materials Science and Engineering
  • Biomedical Engineering

Background:

  • Electrospinning is a versatile, cost-effective method for producing polymer nanofibers.
  • These nanofibers possess desirable characteristics like high surface area, porosity, and mechanical strength.
  • The technique is applicable across energy, biotechnology, healthcare, and environmental sectors.

Purpose of the Study:

  • To provide a comprehensive overview of recent advancements in electrospinning technology.
  • To explore the influence and applications of electrospun nanofibers in the biomedical field.
  • To address current challenges and discuss future directions for electrospinning in biomedical applications.

Main Methods:

  • Literature review of electrospinning techniques and applications.
  • Analysis of nanofiber properties and fabrication parameters.
  • Synthesis of recent developments and future outlook in biomedical fields.

Main Results:

  • Electrospinning yields non-woven nanofibers with tunable properties for various uses.
  • Significant progress has been made in applying electrospun materials to wound dressings, drug delivery systems, and tissue engineering scaffolds.
  • Key procedural limitations and research challenges have been identified.

Conclusions:

  • Electrospinning is a highly relevant technique for fabricating advanced polymer nanofibers.
  • Its biomedical applications, including wound care, drug release, and tissue regeneration, show immense promise.
  • Further research into overcoming procedural challenges will unlock the full potential of electrospinning in healthcare.