Scientist Carson Bruns’ laboratory at the University of Colorado-Boulder makes tattoo inks by mixing, stirring, evaporating, and spinning a series of liquids until they end up with particles of dye encased in beads of plexiglass.
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Rae Ellen Bichell
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KFF Health News
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Tattoos are more popular than ever. About a third of Americans have at least one. A scientist-entrepreneur, together with a celebrity tattoo artist, believes that ink could be doing a lot more.
How so? It starts with a small dot that represents being able to turn a tattoo "off" or "on" depending on where you are. Nanoengineer Carson Bruns started a company with tattoo-artist-to-the-stars Keith “Bang Bang” McCurdy, along with a former doctoral student. Early next year, they plan to release their first product, Magic Ink, to a group of handpicked artists. The business partners have long-term hopes for smart tattoos that have a health value, but cosmetics are cheaper and simpler to get to consumers than medical devices. So, that’s where they’re starting.
Read more ... to hear about this journey toward tattoos and tech.
Mad-scientist kind of moments happen fairly often for nanoengineer Carson Bruns. A few months ago in his lab at the University of Colorado-Boulder, he tested his latest invention on his own arm and asked a colleague for help.
“We were like, ‘OK, we’re going to tattoo ourselves. Can you help us today?’” he said.
The tattoo is like a freckle, a little blue dot. But he can turn it on and off. Like the way a mood ring changes color with temperature, this tattoo changes with light: Ultraviolet light to turn it on, daylight (or even a flashlight) to turn it off.
“You can go to court and turn it off, and then go to the party and turn it on. And then go to Grandma’s house and turn it off,” said Bruns, who is affiliated with the university’s ATLAS Institute, which prides itself on fostering out-of-the-box ideas.
Bruns started a company with tattoo-artist-to-the-stars Keith “Bang Bang” McCurdy, along with a former doctoral student. Early next year, they plan to release their first product, Magic Ink, to a group of handpicked artists. The business partners have long-term hopes for smart tattoos that have a health value, but cosmetics are cheaper and simpler to get to consumers than medical devices. So, that’s where they’re starting.
The new ink will enter a market in a moment of flux for the regulation of cosmetics. The FDA steps in to urge a recall if an ink causes a bacterial outbreak but traditionally has not exercised its regulatory might over tattoo ink products as it does with other products that go into the body. (Tattoo inks don’t even have to be sterile.) But following the Modernization of Cosmetics Regulation Act of 2022, the FDA is expanding its authority over tattoo manufacturers. The agency is now accepting comments on draft guidance about tattoo ink preparation.
Carson Bruns demonstrates how to turn his tattoo on and off: UV light turns it on; a regular flashlight turns it off.
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Rae Ellen Bichell
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KFF Health News
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“To be honest with you, I don’t think either the FDA or the tattoo ink industry really knows what that’s going to look like,” said John Swierk, a chemist at the State University of New York-Binghamton. But, he said, the law does mean “the FDA has a new charge to really ensure that labeling is correct and good manufacturing practices are being followed.”
Bruns said Magic Ink is made of particles of dye, encased in beads of plexiglass — the same polymethyl methacrylate material in those dermal fillers people use to plump their lips. Dermal fillers are FDA-approved, whereas tattoo ink contents can be like a black box.
Swierk said many of the tattoo pigments in use now have been around a long time, which gives some users a base comfort level about their safety. But a new material comes with new unknowns.
“If somebody is going to get tattooed with Magic Ink, they have to accept a degree of uncertainty about what the future is going to hold with that ink,” Swierk said.
A series of tattoo inks change color with exposure to UV light.
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Rae Ellen Bichell
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KFF Health News
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It’s $100 for a half-ounce bottle. That’s a lot more than regular ink costs. If the product takes off, the University of Colorado-Boulder will also benefit, as it owns the intellectual property.
Bang Bang is among a few dozen people, many of them tattoo artists, who are already wearing the ink in their skin.
Tattoo artist Selina Medina has been in the business more than 20 years and used to work for an ink manufacturer. She spends a lot of time advocating for tattoo safety, volunteering with several national and international groups focused on the issue.
“I’d probably give it a year in the market before I would buy it. But it does look really interesting,” said Medina, who is on the board of directors for the Alliance of Professional Tattooists.
Medina hopes this ink is different from the UV inks she saw pop up in the 2000s, which would glow under a black light.
“It seemed like an awesome idea, but then we noticed that it faded really fast,” she said. “It would just disappear. We didn’t know what it did. We didn’t know where it went. And that was just kind of like, ‘What the hell is this stuff?’”
She expects her customers will be clamoring for Magic Ink before she’s ready to purchase it.
Looking further afield, some companies are already investing in technology embedded in the skin. A European company called DSruptive makes injectable thermometers. It said about 5,000 people — living primarily in Sweden, Japan, the U.S., and the United Kingdom — have had the devices installed. Ali Yetisen, an engineer at Imperial College London, said for companies eyeing tech embedded in the skin, diabetes is a big focus.
“That’s where the money is. Most companies invest in this area,” said Yetisen. The dream is to create something like a tattoo that could measure blood sugar in real time, and be long-lasting, he said.
“That’s the holy grail of all medical diagnostics,” he said.
While Bruns’ inventions sense external factors like light and radiation, for manufacturers looking to develop in-body tech that reacts to the blood, there are other scientific hurdles. The immune system forms little shells around foreign bodies, effectively putting up a wall between a sensor and the blood.
No one has really figured a way around that yet, said Yetisen, but a lot of people are trying.
Celebrity tattoo artist Keith “Bang Bang” McCurdy shows a small red heart tattoo created with Magic Ink.
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Jorge Torres
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KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.
Libby Rainey
has been tracking how L.A. is preparing for the 2028 Olympic Games.
Published November 10, 2026 12:29 PM
Estuardo Mazariegos, left, a candidate for LA City Council District 9, speaks during the candidate forum that also featured his opponent, Jose Ugarte, that took place at A Place Called Home on Oct. 3, 2026.
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J.W. Hendricks
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The LA Local
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Topline:
As the race to represent L.A.’s Council District 9 remains too close to call, candidate Estuardo Mazariegos’ campaign has accused the campaign of Jose Ugarte, the front-runner, of potential ballot tampering.
The allegations: The Mazariegos campaign made the accusations Monday, saying it had filed a complaint with the Los Angeles County Registrar-Recorder/County Clerk. They alleged that representatives for the Ugarte campaign had collected voters’ ballots to drop off without signing the appropriate line identifying the individual who returned the ballot.
What happens now: Mike Sanchez, a spokesperson for the L.A. County Registrar-Recorder/County Clerk, said his office had forwarded the news release to the District Attorney for review.
What election law says: Sanchez pointed to the California Elections Code, which says that a “ballot shall not be disqualified solely because the person authorized to return it did not provide on the identification envelope their name or signature.” Under California law, a voter can authorize another person to return their mail-in ballot — an approach also called ballot harvesting.
Read on…for the Ugarte campaign’s response.
As the race to represent L.A.’s Council District 9 remains too close to call, candidate Estuardo Mazariegos’ campaign has accused the campaign of Jose Ugarte, the front-runner, of potential ballot tampering.
The Mazariegos campaign made the accusations Monday, saying it had filed a complaint with the Los Angeles County Registrar-Recorder/County Clerk. In a press release, the campaign alleged that representatives for the Ugarte campaign had collected voters’ ballots to drop off without signing the appropriate line identifying the individual who returned the ballot.
In one case, Mazariegos’ team accused Ugarte campaigners of filling out a ballot on a voter’s behalf without her knowledge of who she was voting for.
“Taking people’s ballots, filling them out, and not following legal voter assistance guidelines in a district that has faced so much disenfranchisement is disgusting,” Mazariegos said in a statement.
Mike Sanchez, a spokesperson for the L.A. County Registrar-Recorder/County Clerk, said his office had forwarded the news release to the district attorney for review. He also pointed to the California Elections Code, which says that a “ballot shall not be disqualified solely because the person authorized to return it did not provide on the identification envelope their name or signature.”
Under California law, a voter can authorize another person to return their mail-in ballot — an approach also called ballot harvesting.
Justin Levitt, a professor of constitutional law at Loyola Marymount University, told AirTalk Tuesday that there is no legal limit on the number of ballots an individual can turn in on others’ behalf, so long as they aren’t being compensated per ballot returned.
“Even if there were some sort of administrative wrongdoing, as long as there's no indication of fraud with the ballot itself, those ballots will all be counted,” he said.
Levitt said, however, that signing a ballot and then handing it to someone else to fill out would be illegal.
“ To the extent that there are allegations now that the DA may investigate, I suspect that's what they'll be focusing on,” Levitt continued.
The Mazariegos campaign also sent a collection of photos to the press, including one of a campaigner, USC student Amir King, returning a stack of ballots at a ballot drop box.
The Mazariegos campaign alleged that representatives for the Ugarte campaign had collected voters’ ballots to drop off without signing the appropriate line identifying the individual who returned the ballot.
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Courtesy of Estuardo Mazariegos' Campaign
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Ugarte’s campaign responded to the accusations by pointing to a post by King on Instagram in which he accused the Mazariegos campaign of bullying him and making false claims about him.
“Why is he attacking me? For participating in our democracy, as is my right under California state law and for helping others participate in democracy, as is their right under California state law,” King said in the post.
As of Tuesday morning, just under 300 ballots separate Ugarte and Mazariegos, with 44,000 ballots left to count in L.A. County. It’s not clear how many ballots in Council District 9 are left to count.
An off-duty Los Angeles County Sheriff’s deputy died in a motorcycle crash near Marina Pacifica on Friday.
Ten year veteran: The Sheriff’s Department said Maciel was a 10-year veteran of the force and an Army Reservist. He worked at the Norwalk Station as a motorcycle deputy after starting his career at the Twin Towers Correctional Facility and working patrol at the Transit Services Bureau.
Stubborn rise in traffic deaths: In recent years, Long Beach has been fighting a rise in traffic deaths. Last year, the city recorded 53 fatal crashes, its highest total in more than a decade. Friday’s crash marked the city’s 41st fatal traffic collision this year. At this time last year, Long Beach had recorded 43 fatal crashes.
An off-duty Los Angeles County Sheriff’s deputy died in a motorcycle crash near Marina Pacifica on Friday.
The crash happened at about 11 p.m. at the intersection of Pacific Coast Highway and Second Street, according to Long Beach police.
Martin Maciel, 40, was heading south on PCH when he collided with a vehicle traveling east on Second Street, throwing the rider from the motorcycle, police said. He was pronounced dead at the scene, according to the Los Angeles County Medical Examiner’s Office.
The other vehicle’s driver remained at the scene and cooperated with investigators, who believe speed was a contributing factor in the crash. Police did not specify which driver they suspect was speeding.
The Sheriff’s Department said Maciel was a 10-year veteran of the force and an Army Reservist. He worked at the Norwalk Station as a motorcycle deputy after starting his career at the Twin Towers Correctional Facility and working patrol at the Transit Services Bureau.
It is with heavy hearts that we share the tragic loss of Deputy Martin Maciel, a ten-year veteran of the Los Angeles County Sheriff’s Department and an Army Reservist, who passed away as a result of an off-duty traffic collision this past weekend.
“Throughout his years of service, Deputy Maciel was a valued member of the department, and his dedication will be remembered by those who had the privilege of serving alongside him,” the Sheriff’s Department said in a statement. “Our thoughts and prayers are with his family, friends, and all who knew him.”
Friday’s crash marked the city’s 41st fatal traffic collision this year. At this time last year, Long Beach had recorded 43 fatal crashes.
To fight speeding in particular, Long Beach recently installed automated speed cameras that are scheduled to start issuing tickets in December.
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Gasoline prices fell below $4 a gallon Tuesday for the first time in three months — but the overall cost of living remains stubbornly high.
More details: The average price of gasoline dipped below $4 a gallon Tuesday for the first time in three months, according to AAA. The price of regular gas has fallen by 38 cents in the last month to a national average of $3.98. The overall cost of living, however, remains stubbornly high. Consumer prices in October were up 0.4% from the previous month, according to a report Tuesday from the Labor Department. That's a bigger monthly increase than forecasters had expected.
Why gas prices are falling: The drop in gasoline prices in recent weeks is thanks to a combination of falling crude oil prices, refineries' switch to a cheaper blend of winter fuel, and the typical seasonal drop in demand for gas.
Read on... for more on gas prices and heating oil prices.
Inflation-scarred consumers are finding a bit of relief these days at an unlikely place: the gas pump.
The average price of gasoline dipped below $4 a gallon Tuesday for the first time in three months, according to AAA. The price of regular gas has fallen by 38 cents in the last month to a national average of $3.98.
The overall cost of living, however, remains stubbornly high. Consumer prices in October were up 0.4% from the previous month, according to a report Tuesday from the Labor Department. That's a bigger monthly increase than forecasters had expected.
Rising housing costs accounted for about a third of the monthly increase. Grocery prices were also up sharply during the month.
Why gas prices are falling
The drop in gasoline prices in recent weeks is thanks to a combination of falling crude oil prices, refineries' switch to a cheaper blend of winter fuel, and the typical seasonal drop in demand for gas.
"Temperatures are getting colder," says Patrick De Haan, petroleum analyst for GasBuddy. "People who have boats and RVs are probably done for the year. I would say, by Thanksgiving, so long as we don't get any wild cards geopolitically, the national average could be $3.75 a gallon."
Gas prices are still at a record high for this time of year, however — about a dollar a gallon higher than when the U.S. went to war with Iran. Even with the recent drop in prices, this year's drive to grandma's for Thanksgiving could be the most expensive ever.
Diesel prices have also fallen, but more slowly than gas prices. AAA says the average price of diesel fuel is $6.15 a gallon, down about 13 cents from a month ago.
The high cost of diesel fuel is another byproduct of the war — not only the U.S. war with Iran but also Russia's war with Ukraine. Russia is ordinarily a big exporter of diesel fuel, but that supply has largely dried up because of damage to Russia's refineries.
"When a country like Russia isn't exporting diesel, that is very impactful for the global market. So diesel prices – they will come down but they will still remain very elevated," De Haan says.
Heating oil prices are also high
Rising diesel prices are also driving up the cost of heating oil in the northeast, because heating oil is a close cousin of diesel.
Mild fall weather has kept heating costs in check so far, but De Haan says a blast of cold air could push heating oil prices even higher.
Higher diesel prices also affect the cost of other goods that have to be moved by truck or train or cargo ship.
"You're starting to see higher freight costs get passed through," says economist Mike Reid of RBC Capital Markets. "We've seen it show up notably in goods that are heavily imported — apparel, recreation goods, IT equipment."
In a speech Tuesday before the inflation release, Federal Reserve Chris Waller suggested that energy shocks could have more lasting effects on inflation that previously though. Waller suggested the central bank may need to raise interest rates more aggressively to curb price hikes than markets had previously expected.
No annual comparison for inflation this time
While Tuesday's inflation report shows how much prices rose in the last month, it does not include the typical reading on how prices have changed over the last year. That's a casualty of last year's government shutdown, which idled hundreds of government price-checkers so prices from October 2025 were never recorded for comparison.
The Cleveland Federal Reserve Bank estimated before Tuesday's release that consumer prices in October were up 3.7% from a year ago. That would outstrip average wage gains of just 3.1% during the year, so the typical worker is losing buying power. That's a big reason for the heavy turnout in last week's mid-term elections. 49.1% of eligible voters took part in the election, the second highest total for any midterm in more than a century.
Campaign signs in support of Proposition 40 and opposing Propositions 41 and 42 at a rally in Los Angeles on Oct. 5, 2026.
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Jae C. Hong
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AP Photo
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Topline:
California will not become the first state to levy a wealth tax on its richest residents — at least not this election.
Why now: Voters rejected Proposition 40, a proposal to tax billionaires based on their net worth and financial holdings, by 52.8% to 47.2%, according to the Associated Press Monday. The measure had trailed behind for days before the Associated Press confirmed results.
Billionaire tax divided Democrats: From the outset, Prop. 40 revealed divisions among the Democratic Party and galvanized some of Silicon Valley’s wealthiest executives to spend hundreds of millions to defeat it. Gov. Gavin Newsom became one of its earliest opponents, attempting through backroom negotiations to keep it off of the ballot altogether. He endorsed the billionaire-backed counter measure, Prop. 42, designed to ban all wealth taxes in California and kill Prop. 40. Newsom, along with Democratic allies such as Planned Parenthood of California and California Teachers Association, argued a one-time tax would not solve the state’s fiscal woes and would drive wealthy residents out of state.
Read on... for more on Prop. 40.
California will not become the first state to levy a wealth tax on its richest residents — at least not this election.
Voters rejected Proposition 40, a proposal to tax billionaires based on their net worth and financial holdings, by 52.8% to 47.2%, according to The Associated Press Monday. The measure had trailed behind for days before The Associated Press confirmed results.
Leaders for Service Employees International Union-United Healthcare Workers West, the union pushing the measure, seemed to concede the race minutes before the polls closed but vowed to try again in 2028 if California’s Legislature “fails to deliver a real solution” to fund healthcare hammered by recent federal law.
“That’s not a hypothetical. That’s our plan,” said Dave Regan, president of SEIU-UHW.
Election Day was projected to be an all-around defeat for the union, known for aggressively pursuing ballot measures. Voters defeated union-backed Proposition 44, an effort to control how clinics spend money. Proposition 42, a billionaire tax countermeasure prohibiting future wealth taxes, was leading Monday evening by 51.6% to 48.4%. That measure could get in the way of SEIU-UHW’s future plans to try taxing wealth again.
The billionaire tax would have generated $100 billion for healthcare and education through a one-time, 5% tax on billionaires, according to SEIU-UHW. Opponents of the measure celebrated its defeat.
“Proposition 40 was a reckless experiment conducted on our state’s economy with little regard for the harms it would cause,” according to a statement from Evan Westrop, a campaign strategist for No on Prop. 40.
The opposition campaign, which was backed by wealthy tech investors and healthcare organizations, argued the measure had already driven billionaires from the state and permanently harmed income tax revenue. On Monday they said the state still faces “enormous pressure” to find other ways to fund healthcare hit by federal cuts.
Billionaire tax divided Democrats
From the outset, Prop. 40 revealed divisions among the Democratic Party and galvanized some of Silicon Valley’s wealthiest executives to spend hundreds of millions to defeat it.
Gov. Gavin Newsom became one of its earliest opponents, attempting through backroom negotiations to keep it off of the ballot altogether. He endorsed the billionaire-backed counter measure, Prop. 42, designed to ban all wealth taxes in California and kill Prop. 40. Newsom, along with Democratic allies such as Planned Parenthood of California and California Teachers Association, argued a one-time tax would not solve the state’s fiscal woes and would drive wealthy residents out of state.
The California Democratic Party and California Federation of Labor Unions supported the initiative and opposed its counter measures, arguing the state needed more revenue to shield workers and everyday Californians from the effects of dramatic federal healthcare cuts expected to kick 2 million residents off of health insurance.
Lorena Gonzalez, former Assemblymember and president of the California Federation of Labor Unions, said Prop. 40’s failure puts even more pressure on state and federal lawmakers to backfill federal Medicaid cuts.
Supporters of Prop. 40 blamed its loss on billionaires vastly outspending the Yes campaign, which raised $33.5 million.
“That is incredibly corrosive and corrupting to our democracy and our political system, and that's been dominating the discussion here in California,” Regan said.
Billionaires poured hundreds of millions of dollars into the campaign to stop Prop. 40. Google co-founder Sergey Brin led the charge, publicly moving out of state and donating $102 million to Building a Better California, a political committee he founded to oppose the tax. The group has served as a passthrough for other billionaire donors to oppose Prop. 40, including by funding the counterpropositions 41 and 42. Collectively, ultra-wealthy opponents donated $378.4 million to oppose the billionaire tax.
In a statement, Abby Lunardini, a spokesperson for Building a Better California, said the billionaire tax threatened to limit revenue for all services in California, including healthcare, by driving economic interests out of the state.
“It was a lose-lose for California, and voters clearly agreed,” Lunardini said.
Ultimately, opponents’ efforts succeeded.
Polling just ahead of the election indicated falling support for Prop. 40 despite growing sentiment for taxing billionaires more in general. According to a UC Berkeley Citrin-POLITICO poll, 45% of voters believed in taxing billionaires more to fund public services compared to 35% who believed the state should prioritize keeping billionaires in state because of the tax revenue and jobs they generate — but just 46% favored Prop. 40.
Infighting among Democrats could have also contributed to Prop. 40’s demise, said John Matsusaka, an economist and direct democracy expert at USC, ahead of the election. Research shows money doesn’t buy people’s votes or values on core issues like abortion, Matsusaka said, but it can exploit uncertainty.
“People these days are very tribal. When your tribe is arguing, people start to listen to the counterarguments,” Matsusaka said.