Fossil Fuel Companies Invest in Removing Carbon Dioxide Directly from Air

In the Canadian town of Squamish, there’s a small building with a massive fan on its purple roof. The fan is rapidly pulling outside air into the facility. The air enters the outdoors again, but it’s not quite the same. About 75% of the carbon dioxide (CO2) is gone. Run by the company Carbon Engineering (CE), the building is the pilot plant for their technology … Continue reading Fossil Fuel Companies Invest in Removing Carbon Dioxide Directly from Air

Jellyfish-inspired electronic skin can heal itself under water

Skin is the largest organ in human body, and can sense important information such as pressure, temperature and pain. This waterproof barrier protects us from infections and can heal itself. Electronic skins are soft and flexible electronics that mimic the functions of skin in one or multiple aspects, and can give robots or even prosthetic limbs the sensations of real skin. However, unlike real skin, … Continue reading Jellyfish-inspired electronic skin can heal itself under water

Scientists create an expanded 8-letter DNA genetic code

Each cell in a living organism has an instruction manual known as the genome. These instructions are spelled out using letters, called bases, that pair with one another to form long double-stranded molecules of helical DNA. Life as we know it uses 4 bases called A, C, T, and G. Recently, scientists expanded this alphabet to include 8 bases – 4 natural and 4 artificial. … Continue reading Scientists create an expanded 8-letter DNA genetic code

Lessons from the Human Genome Project

by Rebecca Fine figures by Elayne Fivenson The Human Genome Project, one of the most ambitious scientific projects ever undertaken, achieved a monumental goal: sequencing the entire human genome. Since its completion in 2003, this project has laid the groundwork for thousands of scientific studies associating genes with human diseases. DNA and the genome: a primer First, let’s talk a little bit about terminology. DNA is … Continue reading Lessons from the Human Genome Project

Extracellular DNA, in Plant Health and Hardship

by Sophia Swartz figures by Abagail Burrus It was only three weeks into the fall semester, and I was starting to sniffle. When I had woken up that morning with a tell-tale tickle in the back of my throat, I had tried to deny the obvious. However, by the end of the day, sneezing and sore, I surrendered to my cold and trudged to my local CVS. … Continue reading Extracellular DNA, in Plant Health and Hardship

Scientists control rat’s movements with their minds

The concept of mind control sounds like something that only exists in sci-fi movies. Until now. Recent work from Zhejiang University on developing a system appears to allow human mind control over the rat’s movements. This “brain-to-brain interface”, or BBI, is achieved by wirelessly coupling the brains of a human operator and a “rat cyborg” and transmitting brain activity in real time. Brain cells communicate … Continue reading Scientists control rat’s movements with their minds

Efficient drug delivery platform into the brain

Treatment of neurological disorders, such as Parkinson’s disease and stroke, has always been a challenging task, partly due to the existence of the blood-brain barrier (BBB). The BBB is a border that separates the blood circulation from the surrounding brain tissue. In a healthy brain, the BBB only allows the passage of nutrients crucial to brain function, while restricting the transportation of other substances, including … Continue reading Efficient drug delivery platform into the brain

Nanowires

  Nanowires are thin structures measuring 0.000000001 meters in diameter, which is so thin that they essentially behave as if they only have one-dimension. This one-dimensional nature gives nanowires a ton of interesting electrical and magnetic properties, which are super useful in electronics and medical devices, especially as they are getting smaller and smaller. Nanowires can be made from a number of different materials. The grey columns in this … Continue reading Nanowires

Nano-antidote provides long-term protection against nerve agents

Nerve agents are toxic chemicals that disrupt signals in the nervous system. They can be absorbed easily through skin contact or by breathing. Exposure to nerve agents interferes with nerve cell signaling and prevents muscles from relaxing, quickly leading to muscle paralysis and eventually death by asphyxiation or cardiac arrest. Treatment is possible but must be administered within minutes of exposure. No long-term vaccine or … Continue reading Nano-antidote provides long-term protection against nerve agents