Chementator
Taming reactive radicals to streamline C-glycoside drug synthesis
Many widely used pharmaceuticals depend on a carbohydrate class known as C-glycosides, which are metabolically stable and acid-resistant. Although they can be made from common sugars like dextrose, C-glycosides have proven difficult to synthesize due to the preponderance of hydroxyl…
Precise molecular order results in remarkably thin monofilaments
A materials-science breakthrough for the production of ultra-fine monofilaments is now being commercialized by startup firm Z-Polymers (Lowell, Mass.; www.z-polymers.com). The company’s Tullomer-branded monofilaments support exceptionally thin functional fibers with low creep and shrinkage, while exhibiting extremely high mechanical strength…
Low-energy carbon capture using food-production byproducts
Direct-air capture (DAC) of carbon dioxide from the atmosphere is required to meet climate goals, but highly effective and inexpensive DAC remains elusive. Researchers at ETH Zurich (www.ethz.ch) have developed a novel approach using waste proteins from dairy and tofu…
Field trials demonstrate the ability of novel scavenger to remove H2S from natural gas
Field demonstration trials of a novel method for removing hydrogen sulfide (H2S) from natural gas were recently completed in the Permian basin (Texas, USA). The trials demonstrated the ability of the technology, known as ECOTREAT®, to remove H2S from gas…
Spark ablation technology cuts iridium use by 90% in PEM water electrolysis
Proton-exchange membrane (PEM) water electrolysis holds significant promise for “green” hydrogen production, but broader adoption hinges on reducing dependence on costly platinum-group metals, such as iridium. A new production method for ultra-thin nanoporous layers developed by VSParticle B.V. (VSP; Delft,…
Atomically thin photocatalysts unlock new pollution-degradation capabilities
Researchers at the University of Birmingham (www.birmingham.ac.uk) have demonstrated a new production method for ultra-thin catalysts, unlocking new capabilities for the catalytic breakdown of persistent water pollutants. “The production method takes layered materials as the precursor, disperses them in a…
Ionomer-free plastic for vacuum packaging applications results from collaboration
Ionomers (polymers that can form cross-links between chains due to ionized functional groups) are often used for vacuum-packaged products because they have the strength needed to resist puncture and tearing when vacuum is applied. Due to material shortages for ionomer…
Patent granted on system for feeding biomass to high-pressure reactors
One of the challenges for biofuels manufacturing is reliably feeding low-density feedstocks into high-pressure reactors, because it is difficult to feed agricultural and forest residue, as well as municipal solid waste, into pressurized systems without bridging, compaction and flow instability.…
New insights into graphene oxide’s strengthening effects in concrete could accelerate commercial development
The nanomaterial graphene oxide (GO) has been investigated as a way to improve concrete strength, but reported results of GO’s effects have been inconsistent and detailed understanding of the mechanisms of its strength-enhancing effects has been elusive. New studies by…
Circular-loop recycling for disposable baby diapers demonstrated in Europe
Disposable baby diapers are a challenging waste stream, because the absorbent polymers, non-woven fibers and organic material prevent them from mechanical-recycling processes. However, a three-way partnership has demonstrated a circular system for chemical recycling of disposable diapers. The project, involving…