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

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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

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Deep-sea coating offers antifouling and anticorrosion protection in extreme environments (2025, October 29)
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An ‘Intimacy Crisis’ Is Driving the Dating Divide

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An ‘Intimacy Crisis’ Is Driving the Dating Divide


In the US, nearly half of adults are single. A quarter of men suffer from loneliness. Rates of depression are on the rise. And one in four Gen Z adults—the so-called kinkiest generation, according to one study—have never had partnered sex.

In an age of endless connection, where hooking up happens with the ease of a swipe and nontraditional relationship structures like polyamory are celebrated, why are people seemingly so disconnected and alone?

Chalk it up to changing social norms or shifting generational attitudes around relationships. But the bigger issue at play, according to Justin Garcia, is that we just don’t crave intimacy in the same way we used to. “Our species is on the precipice of what I have come to think of as an intimacy crisis,” Garcia writes in his new book, The Intimate Animal: The Science of Sex, Fidelity, and Why We Die for Love. Garcia suggests in the book that intimacy—not sex—is the “the most powerful evolutionary motivator of modern relationships,” but that our hunger for it “has been stifled by and misdirected in today’s digital world.”

An evolutionary biologist and anthropologist who began his career studying hookup culture, Garcia is the executive director of the Kinsey Institute at Indiana University, a research lab known for its pioneering work on sexuality, online dating, and aging. (Sex may in fact improve with age, a recent report found). He’s held the position since 2019, and in that time he has also served as the chief scientific advisor to Match, where he provides expertise for its annual Singles in America survey. In 2023, Indiana lawmakers voted to block public funding from the institute—state senator Lorissa Sweet, a Republican, falsely claimed that Kinsey was studying orgasms in minors—but, the following year, the school’s Board of Trustees voted to abandon its plans to separate the institute into a nonprofit.

Garcia’s book covers a lot of ground—the “cognitive overload” of dating apps, why humans are wired to be socially monogamous but not sexually monogamous, the science of breakups—but its throughline is how “even in this bewildering era, where moments of human connection are becoming increasingly elusive, the search for intimacy remains the most human of human impulses.”

On a recent afternoon over Zoom, I spoke with Garcia about the biggest misconception about the sex recession among Gen Z, the attack on sexual literacy in the current political climate, and why an AI chatbot won’t save your relationship. It’s all connected, he says.

This interview has been edited for clarity and length.

WIRED: What is the intimacy crisis, and why, as you write in the book, are we on the verge of one?

Justin Garcia: We hear a lot about the loneliness epidemic. The research suggests that loneliness is as bad for your health as smoking a pack of cigarettes a day. Psychological loneliness gets embodied in physical and psychological health. At the same time, there are reports that suggest that the numbers haven’t increased all that much for psychological loneliness. But clearly its impact is more, and more people are paying attention to the impact.

For me, there’s a bigger umbrella. We are suddenly talking about loneliness at the same time that all of us have more connections than ever before. That’s why I call it an intimacy crisis. We have more people available to us, particularly through internet and social media platforms, but the depth of the connections, the quality of the connections, is not there.

You suggest that the intimacy crisis can lead to “unprecedented and stark biological consequences.” In what way?

We’re in a moment where the human brain is taking in so much information and so much of the information is threatening. It’s what’s going on in the news, in Gaza and Minnesota, with climate change, with global economics—I mean, pick any section of the paper, it’s bad news. That weighs on our nervous system. Just as humans’ romantic and sexualized lives respond to environments with how they form relationship structures, they’re also responding to this current environment, which is that there’s a lot of threat going on. When the nervous system gets tuned up into a threat response, that’s not conducive to social behavior and it’s most certainly not conducive to mating. If our nervous system is detecting threats from all this stuff in our environment, that has all sorts of effects on our relationships. And if we don’t have the safety net of deep intimacy, we can’t effectively weather these storms.



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Republicans Are All In on Boosting Fraud Allegations in California

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Republicans Are All In on Boosting Fraud Allegations in California


A month after the Trump administration began its immigration enforcement operation in Minneapolis, right-wing creators are turning their attention to a new target in search of fraud: California.

Over the last few weeks, right-wing creators who were instrumental in boosting the Minnesota fraud allegations that predated the administration’s surge of federal immigration agents have been going after a number of California’s social welfare programs, making unsubstantiated accusations of fraud—and potentially laying the groundwork for a similar federal crackdown in the nation’s largest Democrat-run state. They’re already getting support from some of President Donald Trump’s key allies too.

Nick Shirley, the right-wing influencer whose viral YouTube video claimed to uncover a purported $100 million fraud scheme involving Somali childcare centers in Minnesota, posted to Instagram over the weekend announcing his arrival in California. “Secrets out,” Shirley wrote in an Instagram story set to Katy Perry’s “California Gurls.” It’s unclear what exactly Shirley plans to do, but he claims to be “investigating” Somali-run childcare centers in California as well, according to posts that circulated on X over the weekend.

Shirley is working with Amy Reichert, a private investigator and failed politician who claims to be investigating “ghost daycares” in California. In his Minnesota video, Shirley “investigated” the fraud by showing up to daycares asking to see children. He appears to be applying the same method in San Diego. Reichert posted a picture with Shirley to X on Saturday, writing “California, here we come! When @nickshirlye drops the video, it’s going to be 🔥.” (Local Minnesota outlets published multiple stories covering childcare fraud years before Shirley’s video came out.)

On Sunday, Benny Johnson, a pro-Trump creator and Turning Point USA contributor, published his own “documentary,” in a similar vein to what Shirley filmed in Minnesota. In it, he claimed to reveal a multimillion-dollar “homeless industrial complex” in California. Johnson teamed up with two Republican gubernatorial candidates, Riverside County Sheriff Chad Bianco and Steve Hilton, a former adviser to UK prime minister David Cameron, in the video, which they claimed was an attempt to uncover fraudulent uses of federal funding to support California’s unhoused. Johnson also claimed that the state was “using these federal dollars to rig national elections.”

California governor Gavin Newsom’s office rejected the claims Johnson made in an X post on Sunday, calling the video “literally the conspiracy theory meme in real life.”

Johnson’s most recent video attempts to claim that California’s homeless shelters are primarily filled with undocumented immigrants. His main piece of evidence is a phone call with a purported “whistleblower” whose identity was concealed. (Newsom’s office responded to this claim, calling it “as real as our Free Unicorn for all undocumented people program.”)

The same week Johnson announced that he would be traveling to California to uncover “fraud,” Trump called California “more corrupt” than Minnesota in a post on Truth Social. “Fraud Investigation of California has begun,” Trump wrote. Last week, Trump named a new assistant attorney general, Colin McDonald, to focus on fraud investigations at the Justice Department.

Other large pro-Trump accounts and news outlets, like Real America’s Voice, are boosting Johnson’s recent video. Larry Elder, talk radio host and former presidential candidate, reposted the video on X on Tuesday, writing “Fraud in California makes that of Minnesota look like a starter kit.”

Elon Musk, who Shirley thanked for initially boosting his December Minnesota video, has also been elevating news coverage related to California fraud. “Truly insane levels of fraud!” Musk said, reposting a story from Fox News earlier this week.



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Ransomware gangs focus on winning hearts and minds | Computer Weekly

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Ransomware gangs focus on winning hearts and minds | Computer Weekly


The tried-and-tested ‘business models’ favoured by some of the world’s most adept, and dangerous, ransomware gangs are scaling rapidly as cyber criminals increasingly adopt structured affiliate models and actively seek out new recruits, including malicious insiders and even cyber pros themselves, according to NCC Group’s latest monthly round-up of the threat environment.

That cyber criminal gangs operate as an organised industry is of course nothing new, and is well-known and understood across the security industry and these days, beyond its confines.

However, said NCC, amid a 13% rise in recorded ransomware attacks during December 2025, the growing financial ‘success’ of ransomware gangs is enabling them to offer stronger financial incentives – including larger commissions – to their new recruits, and improved operational security (OpSec) measures, both signs of growing professionalisation in the ecosystem/

NCC’s Matt Hull said that ransomware-as-a-service (RaaS) gangs now view employees, contractors, and trusted partners as gateways into victim organisations, and enthusiastically target them in order to gain legitimate access to credentials, systems and processes. This allows them to both bypass security controls and dial back their reliance on the use of vulnerabilities that may be discovered and patched at any moment, which in turn reduces the risk of discovery and exposure prior to executing a cyber attack

He cited a well-reported incident in which the Medusa ransomware gang unwisely targeted the BBC by approaching its cyber security correspondent, Joe Tidy. The gang messaged Tidy on the encrypted Signal application to offer him 15% of a future ransomware payment if he gave them access to his PC. When this was rebuffed, Medusa’s recruiter upped the offer to a quarter of 1% of the BBC’s revenues, and promised Tidy he would never have to work again.

 “Targeting high-profile organisations like the BBC is both financially attractive and commercially strategic,” said Hull. “Even limited success against a well-known brand can generate notoriety and credibility, helping groups attract future affiliates and opportunities. Well-resourced groups like Medusa and Qilin can afford to use financial incentives to attract insiders, but smaller gangs often lack the means to compete.

“For organisations, this shifts the focus from purely technical defence to human risk management. Insider threat programmes, strong access governance and robust offboarding processes are critical to reducing the risk that current or former employees become part of the ransomware supply chain.”

But employees are not the only ones being targeted. In November 2025, the US authorities indicted three men accused of extorting a total of five known victims using the ALPHV/BlackCat ransomware. The sting in the tale was that all three worked in the cyber security field, specialising in incident response and ransomware negotiations. The Department of Justice (DoJ) said that one of the men became involved in the scheme because he was in debt.

Two of the accused, named as Ryan Goldberg and Kevin Martin, pled guilty to obstruction of commerce through extortion at the end of December 2025 and are due to be sentenced in March.

“Ransomware has evolved into an organised business model. These groups now think in terms of recruitment, incentives, scale and growth, rather than just attacks,” added Hull.

“What’s striking is that these tactics aren’t new. Trust, deception, social engineering and financial pressure have always worked, they’re just being organised and scaled in new ways. The recruitment of cyber security professionals shows how far this has gone: ransomware groups are exploiting expertise, access and human trust to operate like structured criminal enterprises.”

Qilin remains most active gang

During December 2025, NCC’s telemetry observed 170 Qilin ransomware attacks, approximately double the volume of the gang’s closest rival Akira, which managed 78. LockBit 5.0, Safepay and Sinobi rounded out the top five with 68, 67 and 54 observed attacks to their names, respectively.

NCC said an end-of-the-year rise in ransomware attacks was a well-documented event, as cyber criminals target organisations left understaffed during the holiday period.

As usual, North America remained the most targeted geography, accounting for 50% of the attacks seen by NCC, with Europe accounting for another quarter, and Asia 12%. Approximately 30% of attacks targeted the industrials sector, followed by 22% of attacks targeting the consumer discretionary vertical, and 10% targeting IT companies.



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