We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Hierarchical Interlayer Design for Wheat Straw-Based Straws: Exceptional Mechanical Robustness and In-Situ Capture of Micro/Nano Plastics.
AI summary Read the abstract
Researchers engineered a biodegradable drinking straw from wheat straw using coatings that improved strength, water resistance, and thermal stability. In lab testing, the straw's outer coating captured up to about 36% of negatively charged microplastics and nanoplastics from water, based on turbidity measurements.
Biodegradable drinking straws derived from agricultural residues are limited by poor wet durability, weak interfacial bonding, and insufficient functionality. Herein, wheat straw was converted into a biodegradable straw for potential food-contact applications through hierarchical interface engineering comprising stearic acid hydrophobization, a poly(lactic acid)/cellulose nanocrystal-thioctic acid (PLA/CNC-TA) reinforcing interlayer, and a polydopamine (PDA) outer layer. Stearic acid reduced water uptake, whereas CNC-TA enhanced interfacial compatibility and stress transfer through hydrogen bonding and thioctic-acid-associated interactions. The optimized PP4/WS-SA straw achieved a tensile strength of 64.8 MPa and retained approximately 46 MPa after water exposure. PDA introduced catechol and amine groups, enabling partial capture of negatively charged micro-/nano plastics (MNP), with a maximum turbidity-based removal efficiency of approximately 36%. The straw also exhibited improved thermal stability, food-simulant migration values below the tested limits, and progressive soil degradation, demonstrating a promising value-added application for agricultural-residue tableware.
More Papers Like This
Optimizing multilevel interactions of paper straws using modified cellulose nanocrystal-based coatings to enhance PLA crystallization and microplastic capture efficiency
AI summary Read the abstract
Researchers developed a novel coating for paper straws using modified cellulose nanocrystals combined with PLA to improve durability and water resistance. The coating also demonstrated the ability to capture microplastics from beverages during use. The study offers a dual-benefit approach: creating a more practical paper straw alternative while simultaneously reducing microplastic exposure from drinking.
All-natural, hydrophobic, strong paper straws based on biodegradable composite coatings
AI summary Read the abstract
Researchers developed an all-natural paper straw coated with a biodegradable mixture of sodium alginate, cellulose nanofibers, and stearic acid that avoids the microplastic problem of traditional plastic-coated straws. The coating made the straws water-resistant for over three hours while maintaining good strength, and the straws fully biodegraded in soil within about 45 days. The study offers a practical alternative to plastic straws that does not contribute to microplastic pollution during breakdown.
An ethyl cellulose-coated bacterial cellulose based hydrophobic and degradable straw-like materials towards drinking straws
AI summary Read the abstract
Researchers developed a microplastic-free drinking straw by coating bacterial cellulose with ethyl cellulose, achieving strong mechanical performance (66.82 MPa bending strength), water-repellent surfaces, and complete soil biodegradation within 20 days — outperforming conventional polylactic acid straws on both durability and environmental decomposition.
A hydrophobic and degradable straw based on the ethyl cellulose-coated bacterial cellulose
AI summary Read the abstract
Researchers developed a hydrophobic and biodegradable straw made from ethyl cellulose-coated bacterial cellulose as a microplastic-free alternative to conventional disposable plastic straws. The cellulose-based straw achieved the hydrophobicity needed for beverage use while remaining biodegradable, offering a sustainable substitute that avoids microplastic shedding during use and disposal.
Production of Cost-Effective Biodegradable Straw
AI summary Read the abstract
Researchers developed a biodegradable drinking straw made from natural, chemical-free materials as an alternative to plastic straws. Plastic straws are a common source of single-use plastic pollution and potential microplastic generation in marine environments.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.