A New Scale Can Measure the Weight of a Single Cell

Nanosurf
Nanosurf

Researchers in Europe have invented a new hypersensitive scale that can be used to measure fluctuations in living cells in real-time, Digital Trends reports. The Cytomass Monitor can measure the weight of a single cell weighing only two or three nanograms. (A nanogram is one billionth of a gram.)

Developed by researchers at ETH Zurich, the University of Basel, and University College London, the Cytomass Monitor works by monitoring the changing resonant frequency of a cantilever.

A pulsing blue laser pointed at the microscopic cantilever causes it to oscillate. When the cantilever—made sticky by collagen or a binding protein called fibronectin—picks up an individual cell, researchers can determine its weight by the way that the resonant frequency changes, which is read by an infrared laser. The device is made to be placed directly on the plate of a microscope, so the user can also see and film the cells moving.

In a new study published in the journal Nature, the researchers use the super-sensitive scale to show that a mammalian cell's mass subtly fluctuates throughout the cell cycle. On a second-to-second basis, a living cell's weight fluctuates by between 1 and 4 percent of its total weight, they found.

A Swiss technology company called Nanosurf is now working to make the Cytomass Monitor commercially available so that it can be used in a range of biological and pharmacological research. You can see the concept illustrated in the video below.

This is not, however, the most sensitive scale ever built. In 2012, researchers created a scale capable of measuring the mass of a single proton. 

[h/t Digital Trends]

Need a Robot Vacuum? Neato's Botvac D6 Is $330 Off This Week

Neato
Neato

We've previously recommended robot vacuums as an amazingly easy way to keep your home free of dust, pet hair, and other allergy-triggering nasties, but with higher-tech models going for hundreds and hundreds of dollars, it can be hard to convince yourself you need a vacuum that badly. Except when there's a great sale, like this week's Best Buy deal on Neato's Botvac D6 Connected vacuum.

The app-controlled automated vacuum normally retails for $729, but it's going for $400 right now—a $330 discount. That's 45 percent off.

The Botvac D6, which came out in 2018 and is one of the company's fanciest models, features a battery life of 120 minutes, LaserScan technology that allows it to memorize your home's floorplan (including multi-level homes), a high-performance filter to collect allergens, a turbo mode with increased suction, a pre-scheduling feature, and that signature D-shape that's made to capture debris in tight corners. Neato advertises the Botvac D6's combination of brushes as being 70 percent larger than most other robot vacuums' brushes, allowing it to pick up even more pet hair and dirt.

It also has a bunch of smart features that lower-tier robot vacuums don't offer, like the Quick Boost charging feature, which allows the vacuum to return to its base to quickly top off its charge—just enough to finish the job—if it's running low on juice, and the ability to set no-go lines around pet bowls, piles of cords, and other areas that you don't want your vacuum zooming through. You can control the vacuum via your phone, Amazon Home, Alexa, your Apple Watch, the Neato Chatbot on Facebook, and more.

This is only the latest Neato vacuum to go on super-sale. In March, the company's Botvac D4 was also featured in Best Buy's weekly deals, selling for $300. That model (which features 75 minutes of battery life to the D6's 120) is currently selling for $400 at Best Buy as well.

Here's a tip: We bet your dad would love getting one of these babies for Father's Day. It would also make an excellent gift for a new grad moving into their first grown-up apartment.

Buy it from Best Buy for $400. The deal lasts until 10 p.m. Pacific Time on Monday, May 27.

If controlling your cleaning plan with your phone doesn't seem exciting enough to you, there are plenty of even fancier robot cleaning assistants out there. May we suggest one that will vacuum, mop, and clean itself?

A New Hypersonic Jet Could Get You From New York to London in 90 Minutes

iStock/baona
iStock/baona

For impatient travelers, the next wave of air transportation could be a game-changer. Aerospace company Hermeus Corporation recently announced that it has obtained funding to pursue development of a plane that could travel five times faster than the speed of sound, getting passengers from New York to London in just 90 minutes. But it won't be a cheap flight, and the idea isn't without some baggage.

The venture, which was founded by former employees of private space travel companies like Elon Musk’s SpaceX and Jeff Bezos’s Blue Origin, is seeking to craft a plane that can travel at Mach 5 and reach a cruising speed of 3300 mph.

That ambition will likely take years to materialize. Hermeus co-founder and CEO AJ Piplica told CNN that development is projected to last a decade. He anticipated one-way tickets will cost in the range of $3000.

It currently takes about seven hours to travel from New York to London. Previously, travelers were able to cut that time down to roughly four hours, traveling at twice the speed of sound in the supersonic Concorde jet. High fuel consumption and expensive tickets led to the retirement of the aircraft in 2003. Whether Hermeus can overcome the environmental concerns of such high-octane travel and gather enough passengers willing to pay a premium for less time spent in the air remains to be seen.

[h/t CNN]

SECTIONS

arrow
LIVE SMARTER