Articles on Bioengineering

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To employ these bacteria in cancer therapies, doctors could inject a patient with dormant spores of an anaerobe. Those spores would travel through the bloodstream and remain inert in healthy oxygenated tissue. (Getty Images/Unsplash)

How we are engineering bacteria to eat cancer

Researchers are working to engineer bacteria that can kill cancerous tumours while reducing harm to healthy cells and tissue.
Astonishing but true: apples are one of the latest plant-based materials tissue engineers are experimenting with to create lab-grown human cartilage. Priscilla Du Preez/Unsplash

Developing lab‑grown human cartilage… using apples!

Some medical conditions involve cartilage tissue loss, which is why skin grafting is vital. Lab-grown cartilage could be the way forward for human tissue repair and reducing animal testing.
Your skin cells can generate electricity when wounded. Torsten Wittmann, University of California, San Francisco/NIH via Flickr

Cells lining your skin and organs can generate electricity when injured − potentially opening new doors to treating wounds

Textbooks usually depict the epithelial cells encasing the interior and exterior of your body as passive barriers. But researchers discovered they can produce electrical signals like neurons.
Synthetic biology offers many tantalizing possibilities, but scientists consider some projects too risky to pursue. DBenitostock/Moment via Getty Images

Mirror life is a scientific fantasy leading to a dangerous reality − a synthetic biologist explains how mirror bacteria could conquer life on Earth

Synthetic cells that look just like natural cells but are chemically reversed could outcompete other living organisms − with dire consequences for human health and the environment.
Biobots could one day be engineered to deliver drugs and clear up arterial plaque. Kriegman et al. 2020/PNAS

Biobots arise from the cells of dead organisms − pushing the boundaries of life, death and medicine

Given the right conditions, certain types of cells are able to self-assemble into new lifeforms after the organism they were once part of has died.
Studying pregnancy from multiple disciplines could provide new insights. Carol Yepes/Moment via Getty Images

Pregnancy is an engineering challenge − diagnosing and treating preterm birth requires understanding its mechanics

How and why preterm birth happens is still unclear, in part because research on pregnancy tends to focus on developmental biology.
Organoids can replicate each component of the human heart, from its chambers to its veins. Yonatan R. Lewis-Israeli et al. 2021/Nature Communications

Engineering mini human hearts to study pregnancy complications and birth defects

Human heart organoids allow researchers to study the developing heart while avoiding the ethical issues of using human embryos and the imperfections of animal models.
You don’t need to watch where you step when it comes to bacteria. Westend61/Getty Images

Do you crush microbes when you step on them?

You can squash small bugs by stepping on them, but can you crush even tinier microorganisms like viruses and bacteria? It turns out that you’d need to apply a lot of pressure.

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