Connect with us

Tech

Deep-sea coating offers antifouling and anticorrosion protection in extreme environments

Published

on

Deep-sea coating offers antifouling and anticorrosion protection in extreme environments


The full-ocean-depth-oriented coating for integrated antifouling and anticorrosion. Credit: ACS Nano (2025). DOI: 10.1021/acsnano.5c09595

A research team from the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences (CAS), has developed a new integrated poly(oxime-urethane) (PUDF) coating tailored for full-ocean-depth use. The material delivers antifouling and anticorrosion performance for marine engineering applications. The study was recently published in ACS Nano.

The has emerged as a frontier for marine exploration, but as marine engineering operations expand to full-ocean depths, equipment faces challenges: intense hydrostatic pressure, high salinity, and microbial communities that trigger simultaneous fouling and corrosion—threats that undermine long-term durability.

Conventional multilayer protective systems, however, are vulnerable to interfacial delamination and functional degradation, making them ill-suited for such harsh conditions. This gap has made the development of a single coating that combines synergistic antifouling and anticorrosion protection a critical, long-standing challenge.

To address this, the researchers employed precise molecular design and nanoscale interfacial engineering to create an integrated antifouling and anticorrosion coating based on PUDF. The novel material integrates antibacterial molecules (DFFD) with graphene oxide (GO-COOH) nanosheets, forming a dual-protection system.

The coating exerts its intrinsic antibacterial and antifouling effects by disrupting bacterial purine metabolism and suppressing nucleotide biosynthesis, while the layer provides a , blocking corrosive ions and metabolites. This design provides both antifouling and anticorrosion capabilities, even in extreme deep-sea environments.

Experimental results validated the coating’s full-ocean-depth efficacy: Over two months, it prevented the attachment of macrofoulers in the East China Sea (at a depth of 2 meters) and microbial communities in the Philippine Sea (at 7,730 meters). Additionally, the withstood prolonged immersion in a simulated environment with high pressure (15 MPa), high salinity, and high bacterial concentration, demonstrating strong anticorrosion performance.

This study provides insights into designing synergistic protection mechanisms for high-performance coatings in .

More information:
Peng Zhang et al, Full-Ocean-Depth-Oriented Poly(oxime-urethane) Coating: Construction and Protective Mechanism for Integrated Antifouling and Anticorrosion, ACS Nano (2025). DOI: 10.1021/acsnano.5c09595

Citation:
Deep-sea coating offers antifouling and anticorrosion protection in extreme environments (2025, October 29)
retrieved 29 October 2025
from https://techxplore.com/news/2025-10-deep-sea-coating-antifouling-anticorrosion.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





Source link

Continue Reading
Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Tech

Nancy Mace Curses, Berates Confused Cops in Airport Meltdown: Police Report

Published

on

Nancy Mace Curses, Berates Confused Cops in Airport Meltdown: Police Report


Nancy Mace, the South Carolina Republican congresswoman, unleashed a tirade against law enforcement at the Charleston International Airport on Thursday, WIRED has learned.

According to an incident report obtained by WIRED under South Carolina’s Freedom of Information Act, Mace cursed at police officers, making repeated derogatory comments toward them. The report says that a Transportation Security Administration (TSA) supervisor told officers that Mace had treated their staff similarly and that they would be reporting her to their superiors.

According to the report, officers with the Charleston County Aviation Authority Police Department were tasked with meeting Mace at 6:30 am to escort her from the curb to her flight and had been told that she would be arriving in a white BMW at the ticketing curb area. Around 6:35, the report says, they were told she was running late; they never saw the car arrive.

Shortly before 7 am, the report stated, dispatch told the officers that Mace was at the entrance for the Known Crewmember program—a trusted access lane with a smaller checkpoint overseen by the TSA and intended for flight crew members.

When officers quickly located her, according to a supplemental incident report filed by one of the officers, the congresswoman immediately began “loudly cursing and making derogatory comments to us about the department. She repeatedly stated we were ‘Fucking incompetent,’ and ‘this is no way to treat a fucking US Representative,’” the report states.

As officers escorted her to her gate, according to the report, she brought a South Carolina Senate colleague into the fracas.

“She also said we would never treat Tim Scott like this,” says one officer tasked with escorting Mace says in the report.

“The entire walk to gate B-8 she was cursing and complaining and often doing the same into her phone,” an officer writes in the report. In the main incident report, an officer notes that Mace was yelling into her phone, either on a phone call or dictating text messages. “After standing in the vicinity of B-8 for several minutes with her continuing her tirade, she finally boarded the aircraft.”

After Mace’s flight took off, the report states, an American Airlines gate agent approached the officers. According to the report, he “stated he was in disbelief regarding her behavior. He implied that a US Representative should not be acting the way she was.”

The report goes on to state that officers checked with a TSA supervisor, who told the officers “he was very upset with how she acted at the checkpoint.” This supervisor, according to the report, told the officers that Mace had “talked to several TSA agents the same way” and that they would be “submitting a report to his superiors about her unacceptable behavior.” TSA agents are not currently being fully paid, due to the ongoing government shutdown.



Source link

Continue Reading

Tech

Disney content has gone dark on YouTube TV. Here’s what customers should know

Published

on

Disney content has gone dark on YouTube TV. Here’s what customers should know


This Tuesday, Feb. 28, 2017, file photo shows the YouTube TV logo at the YouTube Space LA in Los Angeles. T Credit: AP Photo/Reed Saxon, File

Disney content has gone dark on YouTube TV, leaving subscribers of the Google-owned live streaming platform without access to major networks like ESPN and ABC.

That’s because the companies have failed to reach a new licensing deal to keep Disney channels on YouTube TV. Depending on how long it lasts, the dispute could particularly impact coverage of U.S. college football matchups over the weekend—as well as NBA and NFL games—on top of other news and entertainment disruptions that have already arrived.

In the meantime, YouTube TV subscribers who want to watch Disney channels could have little choice other than turning to traditional broadcasting or the company’s own platforms—which come with their own price tags.

Here’s what we know.

Why is Disney content not on YouTube TV today?

Disney content was pulled from YouTube TV after a carriage agreement expired on Thursday. The two sides have been unable to reach a new deal to continue licensing Disney channels on the platform—resulting in the current blackout.

YouTube TV says that Disney is proposing terms that would be too costly, resulting in higher prices and fewer choices for its subscribers. Google’s streamer has accused Disney of following through on “the threat of a blackout on YouTube TV as a negotiating tactic”—and claims that the move also benefits Disney’s own streaming products like Hulu + Live TV and Fubo.

Meanwhile, Disney says that YouTube TV has refused to pay fair rates of its channels—and is therefore choosing “to deny their subscribers the content they value most.” The California entertainment giant also accused Google of “using its market dominance to eliminate competition and undercut the industry-standard terms we’ve successfully negotiated with every other distributor.”

In a Friday note to employees, Disney Entertainment Co-Chairs Dana Walden and Alan Bergman and ESPN Chairman Jimmy Pitaro added that YouTube TV pulled Disney content Thursday night “prior to the midnight expiration of our deal”—and noted the platform also deleted subscribers’ previously-recorded programming. The Associated Press reached out to Google for further comment.

Disney content has gone dark on YouTube TV. Here's what customers should know
This Aug. 13, 2020 file photo shows a logo for ESPN on a remote control, in Portland, Ore. Credit: AP Photo/Jenny Kane, FIle

What channels are impacted?

ESPN and ABC are among the biggest networks that YouTube TV subscribers can no longer access amid the dispute.

And beyond those top sports and news offerings, other Disney-owned content that is now dark on the platform include channels specific to U.S. college athletic regions, like the Atlantic Coast Conference and the Southeastern Conference. NatGeo and FX are also impacted.

Here’s a recap of the full list outlined by YouTube TV:

1. ESPN, ESPN2, ESPNU, ESPNews and ESPN Deportes (Spanish Plan)

2. ABC and ABC News Live

3. Nat Geo, Nat Geo Wild and Nat Geo Mundo (Spanish Plan)

4. Disney Channel, Disney Junior and Disney XD

5. FX, FXX and FXM

6. SEC Network and ACC Network

7. Freeform

8. Localish

9. Baby TV Español (Spanish Plan)

Google says that streamer adds-ons like 4K Plus and Spanish Plus are also affected.

Where else can I watch ESPN and ABC?

Consumers can continue to watch Disney’s sports programming on the company’s own ESPN offerings—but it will come with an additional cost. For streaming, the network launched its own platform earlier this year under the same ESPN name, starting at $29.99 a month.

Other Disney content can be found on platforms like Hulu, Disney+ and Fubo. Again, those come with their own price tags. Disney also allows people to bundle ESPN along with Hulu and Disney+ for $35.99 a month—or $29.99 a month for the first year.

Disney also directed customers to a website called KeepMyNetworks.com to explore other options, which includes more traditional broadcast services.

But if you’re a YouTube TV subscriber and don’t have these streaming subscriptions or broadcast offerings, you might be left without access to this Disney content as long as the impasse lasts. YouTube TV said it would give subscribers a $20 credit if Disney content unavailable “for an extended period of time.”

YouTube TV’s base subscription plan costs $82.99 per month. Beyond Disney content, the platform currently offers live TV from networks like NBC, CBS, Fox, BBC, PBS, Hallmark, Food Network and more.

How long could the dispute last?

YouTube TV and Disney have acknowledged that the disruption is frustrating—and both maintain that they’re still committed to finding a resolution. But only time will tell.

The current blackout marks the latest in growing list of licensing disputes that impact consumers’ access to content.

From to awards shows, live programming that was once reserved for broadcast has increasingly made its way into the streaming world over the years—as more and more consumers ditch traditional cable or satellite TV subscriptions for content they can get online. But renewing carriage agreements can also mean tense contract negotiations, particularly amid growing competition in the space.

YouTube TV and Disney have been down this road before. In 2021, YouTube TV subscribers also briefly lost access to all Disney content on the platform after a similar contract breakdown between the two companies. That outage lasted less than two days, with the companies eventually reaching an agreement.

Some past impasses have been shorter and limited to a matter of hours—or found a way to temporarily ward of disruptions at the last minute. In August, for example, YouTube TV reached a “short-term extension” in its contract dispute with Fox, and the two later reached a new licensing deal.

© 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed without permission.

Citation:
Disney content has gone dark on YouTube TV. Here’s what customers should know (2025, October 31)
retrieved 31 October 2025
from https://techxplore.com/news/2025-10-disney-content-dark-youtube-tv.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





Source link

Continue Reading

Tech

Meta Claims Downloaded Porn at Center of AI Lawsuit Was for ‘Personal Use’

Published

on

Meta Claims Downloaded Porn at Center of AI Lawsuit Was for ‘Personal Use’


Further, that alleged activity can’t even reliably be linked to any Meta employee, Meta claims.

Strike 3 “does not identify any of the individuals who supposedly used these Meta IP addresses, allege that any were employed by Meta or had any role in AI training at Meta, or specify whether (and which) content allegedly downloaded was used to train any particular Meta model,” Meta wrote.

Meanwhile, “tens of thousands of employees,” as well as “innumerable contractors, visitors, and third parties access the internet at Meta every day,” Meta argued. So while it’s “possible one or more Meta employees” downloaded Strike 3’s content over the past seven years, “it is just as possible” that a “guest, or freeloader,” or “contractor, or vendor, or repair person—or any combination of such persons—was responsible for that activity,” Meta claims.

Other alleged activity included a claim that a Meta contractor was directed to download adult content at his father’s house, but those downloads, too, “are plainly indicative of personal consumption,” Meta argued. That contractor worked as an “automation engineer,” Meta noted, with no apparent basis provided for why he would be expected to source AI training data in that role. “No facts plausibly” tie “Meta to those downloads,” Meta claims.

“The fact that the torrenting allegedly stopped when his contract with Meta ended says nothing about whether the alleged torrenting was performed with Meta’s knowledge or at its direction,” Meta wrote.

Meta Slams AI Training Theory as “Nonsensical”

Possibly most baffling to Meta in Strike 3’s complaint, however, is the claim about the “stealth network” of hidden IPs. This presents “yet another conundrum” that Strike 3 “fails to address,” Meta claims, writing, “why would Meta seek to ‘conceal’ certain alleged downloads of Plaintiffs’ and third-party content, but use easily traceable Meta corporate IP addresses for many hundreds of others?”

“The obvious answer is that it would not do so,” Meta claims, slamming Strike 3’s “entire AI training theory” as “nonsensical and unsupported.”



Source link

Continue Reading

Trending