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Related Concept Videos

Plasticizers01:31

Plasticizers

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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...
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Bioremediation00:46

Bioremediation

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Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
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Types of Step-Growth Polymers: Polyesters01:20

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The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
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Methods for Controlling Microbial Growth01:29

Methods for Controlling Microbial Growth

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Microbial growth control refers to various methods employed to inhibit, reduce, or eliminate microorganisms to ensure safety and hygiene across different settings. These methods are categorized based on the target environment and the level of microbial control required.Biocides are versatile agents designed to control microorganisms by either inhibiting their growth or outright killing them. These agents work through various physical, chemical, mechanical, or biological mechanisms. The...
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Plastic Behavior01:21

Plastic Behavior

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A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
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Plastic Deformations01:19

Plastic Deformations

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Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...
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Related Experiment Video

Updated: Sep 10, 2025

Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste
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Published on: July 18, 2025

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A prescription for plastic waste.

Michelle Muzzio1

  • 1Chem Circularity, Cell Press, 50 Hampshire Street, 5th Floor, Cambridge, MA 02139, USA.

Trends in Biotechnology
|August 22, 2025
PubMed
Summary

Researchers developed a novel method to break down plastic waste using engineered bacteria. This process was successfully used to create paracetamol (acetaminophen), a common pain reliever.

Area of Science:

  • Biotechnology
  • Chemical Engineering
  • Environmental Science

Background:

  • Plastic waste poses a significant environmental challenge.
  • Bioremediation offers a sustainable approach to waste management.
  • Upcycling plastic waste into valuable products is an emerging field.

Purpose of the Study:

  • To demonstrate a novel bioremediation and upcycling strategy for plastic waste.
  • To engineer Escherichia coli for a non-natural chemical reaction.
  • To synthesize paracetamol (acetaminophen) from plastic waste.

Main Methods:

  • Interfacing a non-natural chemical reaction with Escherichia coli.
  • Developing a genetically engineered bacterial strain.
  • Optimizing reaction conditions for plastic degradation and synthesis.

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Main Results:

  • Successful bioremediation and upcycling of plastic waste.
  • Demonstrated synthesis of paracetamol (acetaminophen) using the engineered bacteria.
  • Potential for a generalizable strategy applicable to other plastic types and products.

Conclusions:

  • The study presents a viable method for plastic waste bioremediation and upcycling.
  • Engineered Escherichia coli can perform non-natural chemical reactions for valuable product synthesis.
  • This approach offers a sustainable pathway for pharmaceutical production from waste materials.