Heavy metal pollution is quietly threatening global food security by poisoning agricultural lands. While environmental scientists have long used charred organic materials to trap toxins like cadmium in the soil, the traditional high-heat baking process is expensive and energy-intensive. Now, an international research team has developed a highly efficient, budget-friendly alternative called "oxychar" that pulls double duty—soaking up both agricultural ammonia and toxic cadmium at the same time.

Cadmium contamination in agricultural soils threatens food safety worldwide, as the toxic metal can accumulate in crops and enter the human food chain. A new study published in the journal Biochar reports that aging silicon-rich biochar derived from rice husks can significantly reduce cadmium uptake in leafy vegetables while improving plant resistance to heavy metal stress.

A new study reports that a biochar-enhanced photocatalyst can efficiently degrade antibiotic contaminants in water, offering a promising strategy for addressing one of the growing threats to global water quality.

After a year and a half of remote work and learning, UC Santa Barbara undergraduate students Sophia Lecuona Manos, Gabrielle Plewe, Carson Gadler and doctoral student Zoe Zilz returned to campus in late 2021 eager for some on-campus, hands-on research, an opportunity that was lost when COVID shut down universities and other public institutions in early 2020.

After creating tiny biological “robots” or biobots, scientists have taken the quest to reimagine life forms a step further, adding nerve cells and observing how they self-organize and alter biobot behavior. The resulting neurobots take on new shapes and show unique behaviors. The researcher seek to understand the rules of self-organization for the nervous system, and ultimately how to work with those rules to guide neurons to new structures in the lab or restore existing tissues in the body.

Iowa State researchers are teaming up with international collaborators to develop a web tool that helps farmers identify and manage the insects, weeds and diseases that threaten their crops. The project's work at Iowa State is supported by the U.S. National Science Foundation.