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Related Concept Videos

Cellulose and Pectic Polysaccharides01:15

Cellulose and Pectic Polysaccharides

Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth.  Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the parenchyma cells of...
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  3. Glutaraldehyde Crosslinked Ternary Carboxymethylcellulose/polyvinyl Alcohol/polyethyleneimine Film With Enhanced Mechanical Properties, Water Resistance, Antibacterial Activity, And Uv-shielding Ability Without Any Uv Absorbents.
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  3. Glutaraldehyde Crosslinked Ternary Carboxymethylcellulose/polyvinyl Alcohol/polyethyleneimine Film With Enhanced Mechanical Properties, Water Resistance, Antibacterial Activity, And Uv-shielding Ability Without Any Uv Absorbents.

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Synthesis of Thermogelling PolyN-isopropylacrylamide-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering
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Glutaraldehyde crosslinked ternary carboxymethylcellulose/polyvinyl alcohol/polyethyleneimine film with enhanced

Zhihao Shan1, Jiayi Huang1, Yuling Huang1

  • 1Department of Chemistry, College of Chemistry and Materials Science, Panyu Campus, Jinan University, Guangzhou 511443, China.

International Journal of Biological Macromolecules
|August 8, 2024

View abstract on PubMed

Summary
This summary is machine-generated.
Keywords:
CMC/PVA/PEI filmSchiff baseUV-shielding

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This study developed a novel composite film for superior UV protection. The film offers excellent transparency and mechanical strength, shielding UV-A and UV-B rays effectively.

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Nanotechnology

Background:

  • Developing UV shielding films with high transparency remains a challenge.
  • Existing methods often compromise optical clarity for UV protection.

Purpose of the Study:

  • To create a novel composite film with enhanced UV shielding and transparency.
  • To investigate the role of glutaraldehyde, carboxymethylcellulose, polyvinyl alcohol, and polyethyleneimine in film properties.

Main Methods:

  • Fabrication of a composite film (GA-x-CMC/PVA/PEI) using electrostatic and hydrogen bond interactions.
  • Cross-linking with glutaraldehyde (GA) to form Schiff bases and acetals.
  • Characterization of UV shielding, transparency, mechanical, thermal, hydrophobic, and antibacterial properties.

Main Results:

  • The composite film exhibits superior UV-A and UV-B shielding efficiency with exceptional transparency.
  • Increased polyethyleneimine (PEI) content leads to near-complete UV spectrum shielding (<400 nm).
  • The film shows enhanced mechanical properties, thermal stability, hydrophobicity, and antibacterial activity.

Conclusions:

  • The novel GA-x-CMC/PVA/PEI composite film offers a promising solution for high-performance UV shielding applications.
  • The film's properties can be tuned by adjusting PEI content for tailored UV protection.
  • The material demonstrates potential for diverse applications due to its multifunctional properties.