Freeze-drying preserves sulfonated lignin’s functional integrity, new study finds
Peer-Reviewed Publication
Updates every hour. Last Updated: 28-Jan-2026 07:11 ET (28-Jan-2026 12:11 GMT/UTC)
A study published in the Journal of Bioresources and Bioproducts investigates how drying temperatures affect sulfoethylated kraft lignin (SEKL), a sulfonated derivative with applications in textiles, construction, and wastewater treatment. Using nuclear magnetic resonance, XPS, and chromatography, researchers revealed that freeze-drying maintains maximum solubility, charge density, and sulfonic acid group content. In contrast, oven drying induces alkylation and hydrolysis reactions that reduce functionality. The findings highlight the importance of optimizing drying conditions to tailor lignin properties for industrial applications.
Hafnium oxide (HfO2) is a promising material for advanced semiconductors, but it is also known for its challenging etching properties. A group of researchers from Japan and Taiwan has successfully etched HfO2 films with atomic-level precision. This process was performed without the use of halogen gases, which are often highly toxic and may act as greenhouse gases.
Do you think that Spotify's suggestions for new music becomes stranger all the time? It may be because of you. In a unique study with researchers from University of Gothenburg, 15 years of listening data shows that musical taste becomes more refined with age.
A new Genomic Press Interview explores how Professor Gerhard Andersson revolutionized psychological treatment delivery worldwide through internet-delivered cognitive behavioral therapy. The Swedish researcher, with over 900 publications and recognition as his country's most cited psychologist, discusses transforming a student's "crazy idea" about online headache treatment into evidence-based digital interventions now integrated into routine healthcare. His work demonstrates that therapist-guided online treatments match traditional therapy effectiveness while dramatically expanding access to mental health services globally.
Quantum computing is widely believed to be a revolutionary new technology. In fact, it is a double-edged sword. If efficient quantum computers can be manufactured in near future, many of the current cryptosystems will be in danger and post-quantum cryptography will be crucial to the security of our communications.