Redesigning an elusive bacterial enzyme into an efficient green catalyst
Peer-Reviewed Publication
Updates every hour. Last Updated: 30-Oct-2026 06:16 ET (30-Oct-2026 10:16 GMT/UTC)
Cytochrome P450 enzymes are promising biocatalysts for greener chemical manufacturing, but many remain difficult to study because their activity relies on unidentified partner proteins. Now, researchers from Japan have engineered the P450 enzyme CYP107J1 from Bacillus subtilis into a new hydrogen peroxide-driven form that no longer requires these partners. The modified enzyme exhibited 28-fold higher catalytic activity than its natural counterpart and efficiently produced indigo dye, demonstrating a promising strategy towards sustainable oxidation chemistry.
While energy generation and transmission grids have traditionally been strictly protected as part of critical infrastructure, the cybersecurity of the energy retail sector has received far less attention. A new study in the field of industrial management, shows that the sector is increasingly targeted by hybrid threats and cyberattacks: retail organisations process sensitive personal, consumption and location data of millions of Europeans and are closely interconnected with broader energy systems that are essential for the continuity of societal functions.
MIT engineers developed a noninvasive pacemaker that stimulates the heart using ultrasound. The design could one day provide a surgery-free alternative to traditional cardiac implants.
ETH Zurich researchers are combining stem cells with magnetoelectric nanoparticles to create controllable microrobots. These microrobots can be precisely guided to the site of a spinal cord injury, where they apply an alternating magnetic field to stimulate cell development. In experiments on zebrafish and mice, the microrobots accelerated the regeneration of nerve cells, significantly improving motor function.
Researchers led by Professor Maochang Liu at Xi’an Jiaotong University have developed a photocatalytic system that simultaneously produces hydrogen gas and a valuable industrial chemical from ethanol with 100% selectivity. By anchoring Ru single atoms and creating S vacancies on ultrathin porous CdS nanosheets, the team achieved an 81.5-fold enhancement in hydrogen evolution compared to pristine CdS. The work, published in Science Bulletin, provides a new strategy for solar-driven coproduction of clean fuel and high-value chemicals.
Europe’s food system is under growing strain from climate change, environmental pressures, and rising levels of diet-related disease. Although the EU has set ambitious goals for a greener, healthier, and more competitive and resilient agrifood system, progress remains slow. A new perspective published in Nature Food examines this gap between ambition and reality and identifies the structural barriers holding transformations back.
The study is the first output of a new European research alliance, bringing together researchers from, among others, Aarhus University in Denmark, Wageningen University & Research in the Netherlands and the French National Research Institute for Agriculture, Food and Environment (INRAE). Drawing on contributions from 34 researchers, it takes a system-wide perspective on the agrifood system, from production to consumption.
The researchers argue that the challenge is not only a lack of knowledge or willingness to change. Many actors across the food system, like farmers, policymakers, and consumers support reform. However, they operate within “lock-ins”: self-reinforcing systems of incentives, regulations, market structures, and habits that sustain the status quo.
Five key lock-ins are highlighted. First, fragmented policymaking leads to conflicting objectives across agriculture, health, environment, and trade. Second, dietary habits are difficult to shift, as cultural norms, prices, and availability often favor less sustainable food choices. Third, market structures emphasize efficiency, scale, and low costs, discouraging long-term investments in sustainability. Fourth, environmental costs such as emissions and biodiversity loss are not reflected in food prices, limiting the competitiveness of sustainable alternatives. Finally, increasing instability from climate change to geopolitical shocks exposes the fragility of a system optimized for efficiency rather than resilience.
Importantly, the authors propose five guiding principles for change in the agrifood system: prioritizing access to affordable, healthy and sustainable food; ensuring inclusive and engaging transformation processes; provide governance to strengthen transparency and accountability; leveraging Europe’s diversity in agrifood systems; and shifting mindsets towards prioritizing common goods.
The researchers emphasize that transformation will require more than technological solutions. Coordinated policy action, new incentives, and strong leadership are essential to unlock systemic change and move Europe’s food system forward.
Published in Nano-Micro Letters, the device retains 98% of its performance even after 45,000 charge–discharge cycles, demonstrating excellent long-term stability.