Biomedical engineers have created a lab-grown tissue similar to natural cartilage by giving it a bit of a stretch. The tissue, grown under tension but without a supporting scaffold, shows similar mechanical and biochemical properties to natural cartilage.
The novel method keeps cells alive for multiple weeks, which makes it easier to study them. This makes it possible to, for example, test the action of new drugs and improve stem cell therapies with unparalleled control.
Researchers have developed a method of producing P450 enzymes - used by plants to defend against predators and microbes - in bacterial cell factories. The process could facilitate the production of large quantities of the enzymes, which are also involved in the biosynthesis of active ingredients of cancer drugs.
Scientists for the first time combine organoids with bioengineering. Using small microfilaments, they show improved tissue architecture that mimics human brain development more accurately and allows more targeted studies of brain development and its malfunctions.
Researchers have developed a way to place onto surfaces special coatings that chemically 'communicate' with bacteria, telling them what to do. The coatings, which could be useful in inhibiting or promoting bacterial growth as needed, possess this controlling power over bacteria because, in effect, they 'speak' the bug's own language.
Researchers designed a powerful bacterial sensor with a stable gene circuit in a colonizing bacterial strain that can record gut inflammation for six months in mice. This study offers a solution to previous challenges associated with living diagnostics and may bring them closer to use in human patients.
An experimental treatment in mice allows the reprogramming of blood cells in order to promote the healing process of cutaneous wounds. This approach could prove to be beneficial in healing challenging wounds in diabetics and major-burn victims.