Connect with us

News

Scientists genetically engineer houseplant to remove carcinogens from air

Published

on

Scientists at the civil and environmental engineering department at the University of Washington have genetically modified a common houseplant to break down toxic molecules present in chlorinated water and gasoline. The plant, “pothos ivy”, was engineered to express a protein called 2E1 which enables the breakdown of benzene and chloroform into components the plant can use for its own needs. The targeted chemicals are found in small amounts inside typical households, building up over time, but the size of their molecules is too small to be caught by HEPA filters. Since exposure to these chemicals has been linked to cancer, this scientific accomplishment is good news for human health.

In their study published on December 19, 2018 in the journal Environmental Science & Technology, researchers Long Zhang, Ryan Routsong, and Stuart E. Strand described the process they used to modify the pothos ivy plant. The plant was chosen because it was robust and able to grow under many different conditions, and the protein used – P450 2E1, “2E1” for short – is naturally present in all mammals. In humans, 2E1 is in the liver and only turns on to break down alcohol, thus it’s not helpful for breaking down air pollutants. For this reason, the team’s work was focused on making its functionality available outside of the body – they call it a “green liver” concept.

The modified pothos ivy plant in the laboratory. | Credit: Mark Stone/University of Washington

A synthetic version of the 2E1 protein occurring in rabbits was introduced to the pothos ivy so that every cell expressed it. In a test tube trial performed after the genetic modification, chloroform concentration dropped 82 percent after three days, undetectable by six days, and the benzene concentration dropped 75 percent by day eight in vials containing the plants and respective gases. To achieve the benefits of the modified functionality in a household setting, the chemicals will need to be moved to where the plant is located. “If you had a plant growing in the corner of a room, it will have some effect in that room,” Stuart Strand, one of the scientist in the study, said. “But without air flow, it will take a long time for a molecule on the other end of the house to reach the plant.”

Benzene is a common industrial chemical used to make plastics, dyes, detergents, and pesticides, among other things, and is generally found in both rural and urban areas. Its links to cancer are very clear – the most common being leukemia – which has led to significant regulation. While the amount most are exposed to is very low, over time it can build up, especially in areas with heavy traffic, cigarette fumes, and low ventilation. Chloroform is a chemical used that can be released into the air when chlorine is used to clean drinking water, waste water, and swimming pools. Although no direct association between cancer and inhaled exposure to chloroform, the Environmental Protection Agency (EPA) considers it to be a probable human carcinogen due to studies linking high exposure via oral ingestion to cancer.

The process of engineering the plant to function as desired took the team over two years, a significant amount of time compared to the months-long processes of other similar modification projects. However, the time spent was considered to be worthwhile due to both the results achieved and the hardiness of the plant used. They are now working to add the breakdown of formaldehyde to the plant’s capabilities using a different protein. Formaldehyde is a substance present in most building products and tobacco smoke that is also linked to cancer, asthma, and allergies.

Advertisement

Accidental computer geek, fascinated by most history and the multiplanetary future on its way. Quite keen on the democratization of space. | It's pronounced day-sha, but I answer to almost any variation thereof.

Advertisement
Comments

Elon Musk

Tesla analyst says Musk stock buy should send this signal to investors

“With Musk’s (Tesla stock) purchase, combined with the upward momentum for delivery expectations and robotaxi rollout, we are becoming more bullish.”

Published

on

(Credit: Tesla)

Tesla CEO Elon Musk purchased roughly $1 billion in Tesla shares on Friday, and analysts are now breaking down the move as the stock is headed upward.

One of them is William Blair analyst Jed Dorsheimer, who said in a new note to investors on Monday that Musk’s move should send a signal of confidence to stock buyers, especially considering the company’s numerous catalysts that currently exist.

Elon Musk just bought $1 billion in Tesla stock, his biggest purchase ever

Dorsheimer said in the note:

“With Musk’s (Tesla stock) purchase, combined with the upward momentum for delivery expectations and robotaxi rollout, we are becoming more bullish. This purchase is Musk’s first buy since 2020. To us, this sends a strong signal of confidence in the most important part of Tesla’s future business, robotaxi.”

Advertisement

Musk putting an additional $1 billion back into the company in the form of more stock ownership is obviously a huge vote of confidence.

He knows more than anyone about the progress Tesla has made and is making on the Robotaxi platform, as well as the company’s ongoing efforts to solve vehicle autonomy. If he’s buying stock, it is more than likely a good sign.

Tesla has continued to expand its Robotaxi platform in a number of ways. The project has gotten bigger in terms of service area, vehicle fleet, and testing population. Tesla has also recently received a permit to test in Nevada, unlocking the potential to expand into a brand-new state for the company.

In the note, Dorsheimer also touched on Musk’s recent pay package, revealing that William Blair recently met with Tesla’s Board of Directors, who gave the firm some more color on the situation:

“We recently participated in a meeting with Tesla’s board of directors to discuss the details of Musk’s performance package. The board is confident of its position in the Delaware case and anticipates a verdict by end of year. It does not expect a similar situation to occur under new Texas jurisdiction. Musk has the board’s full support, and we expect he’ll get more than enough shareholder support for this to pass with flying colors.”

Advertisement

Tesla stock is up over 6 percent so far today, trading at $421.50 at the time of publication.

Continue Reading

News

Morgan Stanley’s Adam Jonas dubs Tesla FSD a “game changer” after marathon drive

Jonas reported that FSD handled more than 99% of the miles.

Published

on

Credit: Tesla Europe & Middle East/X

Morgan Stanley’s analyst Adam Jonas shared a notable endorsement of Tesla’s Full Self-Driving (FSD) software after completing a 1,400-mile round trip from New York to Michigan in his Model Y. 

Jonas reported that FSD handled more than 99% of the miles, calling the system “a game changer” for long-distance driving.

Hands-free experience

Jonas drove his 2021 Tesla Model Y equipped with Hardware 3 and FSD Supervised v12.6.4, and he used the system nearly the entire trip. “Having your hands off the wheel and feet off the pedals for nearly 12 hours of driving is a real game changer that is hard to appreciate without experiencing it for yourself,” he noted.

He explained that outside of two heavy downpours, one on the Pennsylvania Turnpike and another in suburban Detroit, plus some light maneuvering in fast food parking lots, FSD handled the drive without any human intervention. “FSD made no mistakes or close calls that I recall. The system handles highways very safely and confidently. I cannot imagine buying another EV without FSD.”

Broader implications

Jonas added that he has used FSD consistently over the past 18 months, and the $8,000 he paid for the feature feels like a bargain considering the value. He also praised Tesla’s Supercharging network, which supported his trip without issue.

Advertisement

Jonas has been one of Wall Street’s most closely followed voices on Tesla, and his comments add weight to the ongoing debate about the role of autonomy in the company’s future. His current price target for Tesla stock stands at $410. During Morgan Stanley’s 13th Annual Laguna Conference, he echoed similar experiences with Tesla’s software, emphasizing that FSD “probably drove well over 99% of the miles” on his recent trips.

Continue Reading

Elon Musk

Elon Musk just bought $1 billion in Tesla stock, his biggest purchase ever

Prior to this latest move, Musk’s most recent purchase was for about 200,000 shares worth $10 million in 2020.

Published

on

Gage Skidmore from Surprise, AZ, United States of America, CC BY-SA 2.0 , via Wikimedia Commons


Tesla (NASDAQ:TSLA) shares rose on Monday after CEO Elon Musk disclosed a rare insider purchase of company stock worth about $1 billion. 

A filing with the U.S. Securities and Exchange Commission (SEC) revealed that Musk acquired 2.57 million shares last Friday at various prices. The move represents Musk’s largest TSLA purchase ever by value, as per Verity data.

Elon Musk’s TSLA purchase

The disclosure sent Tesla shares up more than 8% in premarket trading Monday, as investors read the purchase as a notable vote of confidence, as stated in a CNBC report. Tesla stock had closed slightly lower Friday but remains more than 25% higher over the past three months. It should be noted that prior to this latest move, Musk’s most recent purchase was for about 200,000 shares worth $10 million in 2020.

Market watchers say the purchase could help shore up investor sentiment amid a volatile year for TSLA stock. Shares have faced pressure from a variety of factors, from year-over-year sales challenges due to the new Model Y changeover, political controversies tied to Musk, and reduced U.S. incentives for EVs under the Trump administration. Nevertheless, analysts such as Wedbush’s Dan Ives stated that Musk’s purchase was a “huge sign of confidence for Tesla bulls and shows Musk is doubling down on his Tesla A.I. bet.”

Tesla and Elon Musk

Musk already owns about 13% of Tesla, and his latest purchase comes as the company prepares for a key shareholder vote in November. Investors will decide whether to approve a compensation package for Musk that could ultimately be worth as much as $975 billion if ambitious market value milestones are achieved. The package has a long-term target of pushing Tesla’s market capitalization to $8.5 trillion, compared with about $1.3 trillion at Friday’s close.

Advertisement

Wall Street’s current consensus price target still implies a roughly 20% decline from current levels, though some Tesla bulls remain optimistic that the company could shift its focus toward autonomy, AI, and robotics. Musk has also asked shareholders to approve an investment into his latest venture, xAI.

Continue Reading

Trending