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Green Algae

Green Algae

Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...

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Updated: Jun 7, 2025

Synthesis of Thermogelling PolyN-isopropylacrylamide-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

Synthesis of Thermogelling PolyN-isopropylacrylamide-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

Published on: October 26, 2016

Multifunctional Biocomposite Materials from Chlorella vulgaris Microalgae.

Israel Kellersztein^1,2, Daniel Tish³, John Pederson¹

¹Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, 91125, USA.

Advanced Materials (Deerfield Beach, Fla.)

|November 19, 2024

Summary

This summary is machine-generated.

Researchers developed sustainable biocomposites using Chlorella microalgae and hydroxyethyl cellulose (HEC). This novel material offers excellent structural integrity and thermal insulation, providing an eco-friendly alternative for advanced applications.

Keywords:

additive manufacturing composite materials mechanics of materials microalgae natural materials

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Last Updated: Jun 7, 2025

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Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids

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Published on: January 7, 2019

Area of Science:

Materials Science
Biotechnology
Sustainable Engineering

Background:

Conventional biopolymer extrusion demands high energy and harsh chemical treatments for natural fiber reinforcement.
Developing sustainable, high-performance biocomposites remains a significant challenge in materials science.

Purpose of the Study:

To introduce a sustainable framework for fabricating Chlorella vulgaris microalgae-based biocomposites.
To optimize bioink formulations and extrusion processes for enhanced material properties.
To investigate the role of hydrogen bonding in material reinforcement and thermal insulation.

Main Methods:

Extrusion 3D-printing of Chlorella vulgaris microalgae and hydroxyethyl cellulose (HEC).
Bioink optimization and controlled dehydration process.
Infrared spectroscopy for analyzing hydrogen bonding interactions.
Mechanical testing for bending stiffness and thermal property evaluation.

Main Results:

Lightweight, multifunctional biocomposites with hierarchical architectures were produced.
Hydrogen bonding between HEC and Chlorella cells was identified as crucial for reinforcement.
A controlled dehydration process prevented cracking and maintained microalgae morphology.
The biocomposites exhibited a bending stiffness of 1.6 GPa and thermal conductivity of 0.10 W/mK.

Conclusions:

Chlorella-based biocomposites offer a sustainable alternative to conventional materials.
The materials demonstrate promising structural performance and effective thermal insulation.
This framework supports the development of eco-friendly materials for diverse applications.