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Bioinženýrství

Science Daily: Bioengineering | 2026-06-12
Scientists just found what keeps plant cells from growing out of control
Before seedlings can photosynthesize, they depend on fatty acids—and on peroxisomes to process them. Researchers discovered that the protein PEX11 not only helps these structures divide but also controls their size during early growth. When key genes were altered, peroxisomes grew abnormally large, suggesting internal vesicles normally keep them in balance. Remarkably, a yeast version of the protein fixed the problem, pointing to a deeply conserved mechanism across species.| More info

A donut-shaped protein breaks apart to start bacterial cell division
Researchers have revealed how bacteria precisely control the genes that trigger cell division. The study shows that the MraZ protein, which normally forms a donut-shaped structure, must bend and partially break apart to bind key DNA sequences that activate division genes. Using cryo-electron microscopy, scientists captured this interaction in remarkable detail. The mechanism appears to be widespread across bacteria, offering a new window into how microbes regulate growth.| More info

Light-guided evolution creates proteins that can switch, sense, and compute
Researchers have created a method called optovolution that uses light to guide the evolution of proteins with dynamic behaviors. By engineering yeast cells so their survival depended on proteins switching states at the right time, scientists could rapidly select the best-performing variants. The technique produced new light-sensitive proteins that respond to different colors and improved optogenetic systems. It even evolved a protein that behaves like a tiny logic gate, activating genes only when two signals are present.| More info

The 4x rule: Why some people’s DNA is more unstable than others
A large genetic study shows that many people carry DNA sequences that slowly expand as they get older. Common genetic variants can dramatically alter how fast this expansion happens, sometimes multiplying the pace by four. Researchers also identified specific DNA expansions linked to severe kidney and liver disease. The findings suggest that age-related DNA instability is far more common than previously realized.| More info

Sunflowers may be the future of "vegan meat"
A collaboration between Brazilian and German researchers has led to a sunflower-based meat substitute that’s high in protein and minerals. The new ingredient, made from refined sunflower flour, delivers excellent nutritional value and a mild flavor. Tests showed strong texture and healthy fat content, suggesting great potential for use in the growing plant-based food sector.| More info

Chemie

Chemistryworld.com | 2026-06-12
Extreme weather likely to increase methane emissions from landfills
Observations and models reveal precipitation and temperature linked to 13% of emissions from these sites| More info

Warming seas impact cell structures that deliver oxygen to coral
Oxygen-sensitive nanoparticles reveal a new mechanism of coral stress| More info

Could AI research assistants speed up scientific discovery?
Google’s Co-Scientist and Futurehouse’s Robin can help scientists generate hypotheses, design experiments and analyse data| More info

Pigeons navigate with ‘gut feeling’ powered by paramagnetic liver cells, study suggests
Homing pigeons might owe their navigational knowhow to iron nanoparticles in their liver| More info

Scattering technique probes actinide orbitals to present experimental evidence of covalency trend
Study confirms predicted increase in covalency from uranium to plutonium| More info

Nanotechnologie

Nanotechnology research news from Nanowerk | 2026-06-12
Organic molecule pushes LED emission closer to monochromatic light
A boron-rich ladder molecule narrows spontaneous emission, improving color purity while exposing stability challenges inside OLED devices.| More info

Alkali-doped zinc oxide enables rare-earth-free mechanoluminescence
Lithium or sodium substitution turns abundant zinc oxide into a stress-activated near-infrared emitter for self-powered optical sensing.| More info

Cryogenic silicon carbide transistor mimics neuron-like switching
A silicon carbide transistor uses negative differential resistance at millikelvin temperatures to enable low-power local control near quantum processors.| More info

Ballistic electron transport observed in single-crystalline copper thin films
Defect-free copper pathways let electrons travel with less scattering, pointing to ways of reducing resistance in future nanoscale wiring.| More info

Researchers discover piezoelectric effect in diamond membranes
Diamond, long deemed non-piezoelectric, now shows stable voltage generation in ultrathin flexible membranes, unlocking self-powered medical sensors.| More info