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Simple solvent makes polycotton fabric completely recyclable

What we think of as polyester fabric is most often actually a blend of polyester and cotton, which has proven very difficult to recycle. A new solvent, however, breaks the blend down into its two components, leaving both almost completely reusable.

Made up of menthol and benzoic acid, the solution was developed by PhD student Nika Depope, Dr. Andreas Bartl and colleagues at the Vienna University of Technology.

Although both substances are solid at room temperature, they take on a “deep eutectic solvent” form when heated to a temperature of 216 ºC (421 ºF). When polycotton (polyester/cotton blend) textiles are immersed in that liquid, it causes the polyester to dissolve and separate from the cotton fibers within just five minutes.

Validation of a Risk Score for Cancer-Associated Thrombosis Using Nationwide EHR Data

This study externally validated the EHR-CAT risk score for cancer-associated thrombosis (CAT) using the Epic Cosmos database, with similar performance as the original derivation, showing promise EHR integration across diverse health systems.

Question Can routinely collected electronic health record (EHR) data from diverse health systems be used to model cancer-associated thrombosis (CAT) risk?

Findings In this prognostic study using a retrospective cohort of 732 594 patients with cancer receiving systemic therapy between 2018 and 2023 from 184 health systems, the EHR-CAT score significantly outperformed the benchmark Khorana score and had 20% improved accuracy. The model had consistent calibration by demographic subgroups, health system sites, and cohorts stratified by bleeding risk.

Meaning These results suggest that standardized structured EHR data from different health systems can support scalable validation and implementation of CAT risk assessment.

An AI-Based System Has Found a Potential Longevity Drug

In a preprint published in bioRxiv, Prof. Vadim Gladyshev and a team of researchers have used an artificial intelligence-based system to discover a wide variety of potential interventions, including a drug that significantly improves biomarkers of frailty in mice.

Repurposing previous data

Previous research efforts have created a massive dataset in the form of the Gene Expression Omnibus (GEO), which contains the results of a great many experiments related to potentially disease-modifying drugs, many of which are tissue-specific [1]. These researchers refer to this dataset as a “massive missed opportunity” in aging research, because the vast majority of the experiments in the GEO were unrelated to aging and their data was never investigated in that context.

Dirty water boosts prospects for clean hydrogen

Wastewater can replace clean water as a source for hydrogen, eliminating a major drawback to hydrogen fuel and reducing water treatment costs of hydrogen production by up to 47%, according to new research from Princeton Engineering.

The findings, reported Sept. 24 in the journal Water Research, are a step toward making hydrogen a practical pathway to decarbonize industries that are difficult to electrify, such as steel and fertilizer production.

Z. Jason Ren, the senior study author, said that current electrolytic hydrogen production requires a large amount of clean water, increasing costs and straining local water supplies. His research team wanted to find out whether treated water processed by wastewater plants could be substituted.

Ammonia could power ships, industries with 70% more efficient tech

“No one has showcased that ammonia can be used to power things at the scale of ships and trucks like us,” said CEO Seonghoon Woo, who founded the company with Hyunho Kim, Jongwon Choi, and Young Suk Jo. “We’ve demonstrated this approach works and is scalable.”

The company is targeting power-hungry industries like maritime shipping, power generation, construction, and mining for its early systems as the power density advantages of ammonia over renewables and batteries.

With a manufacturing contract secured with Samsung Heavy Industries, Amogy is set to start delivering more of its systems to customers next year. The company will deploy a 1-megawatt ammonia-to-power pilot project with the South Korean city of Pohang in 2026, with plans to scale up to 40 megawatts at that site by 2028 or 2029, according to a press release.

Super-Rare ‘Hybrid’ Blood Type Discovered in Just 3 People

An investigation into why blood doesn’t always behave as doctors expect has revealed a super-rare mutation in an extremely uncommon variation of blood.

Testing more than 544,000 blood samples in a hospital in Thailand revealed three people carrying a never-before-seen version of the B(A) phenotype – a genetic quirk estimated to occur in about 0.00055 percent of people, or roughly one in 180,000.

This discovery, says a team led by hematologist Janejira Kittivorapart of Mahidol University in Thailand, suggests that there may be more rare blood variants out there, too subtle for standard testing to detect.

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