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CAIVdirected smallmolecule shuttle enables targeted brain delivery of biologics Chemical Biology

After AAV directed evolution led to discovery of a new blood-brain-barrier (BBB) receptor (carbonic anhydrase IV) which facilitates transcytosis, Ding et al. linked a small molecule binder of CA-IV to antibodies, allowing the antibodies to traverse the BBB. This is a major advance since it represents the first time that a receptor target discovered via AAV directed evolution has been adapted to transport other types of molecules across the BBB.

Existing receptor targets to direct delivery of biologics across the blood−brain barrier are ubiquitously expressed in the central nervous system (CNS) and peripheral tissues. Now, carbonic anhydrase IV (CA-IV) is identified as a brain-enriched receptor, enabling selective and prolonged delivery of large molecules to the CNS through conjugation of a small molecule targeting CA-IV.

The Benefits And Risks Every Business Leader Needs To Understand About AI

AI’s business case is no longer hypothetical. AI enhances human potential by managing repetitive tasks at scale, freeing up humans to concentrate on strategy, judgment, and creativity. Organizations in many industries use it to speed up research, streamline operations, and make quicker, more informed decisions. Gains in productivity are genuine and compound.

AI is no longer a luxury in cybersecurity but a necessity. These days, attacks happen at machine speed, and only machine-speed defenses can keep up. AI-driven security solutions are a force multiplier, especially for companies without sizable security staffs, as they identify anomalies, pursue threats, and contain incidents far more quickly than human teams alone.

Above all, AI is a competitive advantage. Businesses that grasp it early will define their markets; those that hesitate will face upending by competitors who do. Financial literacy and AI fluency are quickly becoming equally essential to business leadership.

Scientists find signs of extreme aging and youth in the same 117-year-old

A remarkably detailed study of Maria Branyas, who lived past 117, reveals that extreme longevity may involve both intense aging and powerful biological protection at the same time. Researchers found signs of advanced aging, but also low inflammation, beneficial gut bacteria, protective genetic features, and a biological age younger than her chronological age. Because she avoided major disease, the study offered a rare look at aging itself rather than the illnesses that often accompany it.

Physicists turn classical light into a quantum machine for information processing

Quantum computers promise to tackle problems that are extraordinarily difficult for today’s computers. But there is a major obstacle: quantum systems are notoriously fragile. Noise, loss and even tiny disturbances can destroy the delicate behavior that gives them their power. Building systems with many quantum particles is also extremely challenging.

Now, physicists at Louisiana State University have demonstrated a different route. Instead of starting with a fragile source of quantum light, the team begins with bright, readily available classical light and uses an optical network together with measurements that count photons one by one. This combination reveals and uses hidden multiphoton quantum behavior for information processing.

In a study published in Advanced Science, researchers in LSU’s Department of Physics & Astronomy report the first robust multiphoton quantum reservoir of its kind to operate at room temperature while tolerating substantial noise and loss. The platform accesses multiparticle systems with up to 40 photons, simulates complex quantum dynamics, and uses the same optical machine to learn several very different mathematical functions.

Julia Lampert on Becoming AI Native Before 2035

That is the load-bearing claim of Julia Lampert’s new book. I spent three hours trying to break it.

Then she gave me a word I had never used.

Her doctorate was on utopias, dystopias, and atopias in Jerusalem 2060. An atopia is the place between the two, where you cannot quite say what it is.

We talk about AI in utopia and dystopia all the time. Both vivid. Both well funded.

The atopia is the part nobody has language for yet. It may also be the part we end up living in.

Her book is a manual for the How. My argument, for fifteen years now, is that technology is the How and never the Why or the What.

Continue reading “Julia Lampert on Becoming AI Native Before 2035” | >

Helium-3 lifts new quantum computing concept with faster tunneling rates

Helium—the lightest atom that can be laser-cooled and controlled—powers a new design for high-powered, stable quantum computers.

In a paper published in PRX Quantum, a team led by University of Chicago Pritzker School of Molecular Engineering and Physics Department Associate Professor Jacob Covey outlined a new concept that could turn helium’s light weight into the next generation of quantum computers.

Once built, the computer could use high-powered lasers as “optical tweezers” to capture and control individual helium atoms, the second-lightest element overall and the lightest that can be trapped with current technology. This offers a major advance over designs based on lithium, the third-lightest element.

How one RNA nucleotide switch activates fluorescent dyes

RhoBAST is a tiny RNA molecule that activates fluorescent dyes, enabling researchers to track RNA molecules in living cells with super-resolution. An international collaboration, which includes Ronald Micura and his team from the Institute of Organic Chemistry, has now shown that a small, local “nucleotide flip” within the RNA controls this fluorescence activation.

Fluorescent light-up aptamers (FLAPs) are short RNA sequences that bind and activate small dye molecules that otherwise exhibit only weak fluorescence. This enables genetic tagging of RNAs for live-cell imaging without the need for protein fusion markers. Because the dye is only “switched on” upon binding to the RNA, background fluorescence remains low.

Systems such as Spinach, Broccoli, Mango and Pepper have continuously advanced this principle over the past years. RhoBAST additionally enables high-resolution imaging of individual RNA molecules in living cells.

Single nanostructure enables independent control of two light resonance modes

Metallic nanostructures are exceptionally effective at concentrating light into tiny volumes, while dielectric nanostructures excel at storing light with minimal energy loss. Combining these complementary properties has traditionally required complicated hybrid structures in which the two optical modes become mixed, making them difficult to control independently.

Achieving both resonance types within a single nanostructure without mode interference has therefore remained a major challenge in nanophotonics, limiting the development of compact, multifunctional optical devices.

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