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Ink-based thermoelectric technology could be solution for replacing problematic refrigerants

Today’s refrigerants, which are specialized working fluids used in air conditioners, refrigerators and heat pumps, come with a host of issues, including leakage, emissions concerns, flammability and limited reclamation of used refrigerants. However, a recent study by University of Notre Dame researchers published in Materials Horizons describes a promising alternative for next-generation cooling using thermoelectric technology, which has no moving parts and no gaseous refrigerants, allowing for zero leaks.

“By making thermoelectric devices a competitive and commercially viable technology, it can transform the way we cool things,” said Yanliang Zhang, Advanced Materials and Manufacturing Collegiate Professor of Aerospace and Mechanical Engineering at Notre Dame. “We can make the cooling process become very environmentally friendly.”

In the past, widespread adoption of thermoelectrics has been challenging because of the high costs associated with traditional manufacturing processes. However, the research team led by Zhang has developed an innovative ink-based printing strategy that enables scalable manufacturing of low-cost, high-performance thermoelectric materials and devices.

3D photothermal design unlocks 8.5-fold higher solar evaporation for desalination and crop irrigation

The global shortage of freshwater has become a critical challenge. Conventional water treatment relies heavily on fossil fuels and associated infrastructure, which can make it unsuitable for remote and harsh regions. In contrast, solar thermal evaporation is a promising alternative, but its application is limited by material performance and production constraints.

Now, researchers from the Institute of Process Engineering, Chinese Academy of Sciences, and Shenzhen University have developed a new three-dimensional (3D) photothermal structure that greatly improves solar evaporation efficiency.

The new structure tightly integrates polymer chains with hollow multishelled structures (HoMS), yielding a record evaporation rate of 38.14 kg m-2 h-1 —a figure 8.5 times higher than rates previously reported for two-dimensional membrane systems.

Jumping the clock: Engineering ageing in biomedicine

Engineering the age(ing) of tissues in vitro could lead to more representative and predictive models for the ageing population. This forum introduces methodological approaches for ‘age engineering’ (‘ageneering’) and further discusses future applications of age-matched cells, matrices, and microtissues in predictive disease modelling, biomarker discovery, and age-specific pharmacotoxicology.

Red Mars to Green — Giving the Planet a Touch of Terraforming

GOLDEN, Colorado – Scientists are engaged in research with an eye toward transforming the cold climes of Mars into a far more humane place for Earthlings in the future.

One notion proposed is dispersion of an aerosol meant to motivate the warming of Mars’s atmosphere. The idea is projected to be a first step toward terraforming the Red Planet.

Emerging recently as a new field of study is “applied astrobiology” – to appraise what would be needed to create sustainable habitats and biospheres beyond Earth.

A renewable cell source for cancer immunotherapy could make off-the-shelf treatments possible

In a paper published in Cell, a USC Stem Cell-led team reports a new way of generating a renewable and expandable supply of the progenitor cells that give rise to macrophages. These immune cells help drive the body’s response against pathogens, and they hold strong promise as the basis for immunotherapies against cancer and other diseases.

The paper, “Expansion and CAR Engineering of Granulocyte-Monocyte Progenitors for Cellular Immunotherapy,” demonstrates that progenitor cells known as granulocyte-monocyte progenitors (GMPs), which give rise to macrophages and other immune cells, can be extensively expanded in the laboratory and engineered both to target specific cancer markers and to help stimulate broader immune responses.

“The study establishes a scalable and engineerable GMP platform for cellular immunotherapy and introduces concepts that we believe could have broad implications for both cancer immunotherapy and stem cell biology,” said the paper’s corresponding author Qi-Long Ying, MD, Ph.D., professor of stem cell biology and regenerative medicine at the Keck School of Medicine of USC.

Engineering RH

Engineering Riemann Hypothesis


This morning, I revisited the Riemann Hypothesis from a zero–pole perspective 🧮✨ and introduced a new reciprocal formulation called the Srichan Teza Function. https://lnkd.in/gkFRTfX3 The idea is simple 🔄: Start from the completed zeta function ξ(s) = 1/2 · s(s − 1)π⁻ˢᐟ² Γ(s/2)ζ(s) and define T_S(s) = 1/ξ(s) Then every zero of ξ(s) becomes a pole of T_S(s): ξ(ρ) = 0 ⇔ T_S(s) has a pole at s = ρ So RH can be reframed as a pole-localization problem 🕳️📍: All poles of T_S(s) in the critical strip must lie on Re(s) = 1/2 Using the argument principle 🔁, P_T(D) = 1/(2πi) ∮∂D ξ′(s)/ξ(s) ds counts the number of Teza poles inside a domain D. Geometrically, this is the winding number of the curve ξ(∂D) around the origin 📐🌀

Submit an Abstract — 2026 International Mars Society Convention

The 2026 International Mars Society Convention is now accepting abstract submissions for presentations covering all aspects of Mars exploration and settlement.

We welcome proposals across a wide range of topics, including science, engineering, technology development, human factors, public policy, economics, and other key areas shaping the future of the Red Planet.

This global gathering will bring together scientists, engineers, policymakers, industry leaders, and space advocates to share ideas, research, and strategies for advancing human exploration of Mars. Whether your work is technical, conceptual, or interdisciplinary, we encourage you to contribute to the conversation.

Neuron-targeted gene therapy rescues multiple phenotypes of STXBP1-related disorders in mice and is well tolerated in nonhuman primates

Aeran and colleagues present research on targeted gene therapy vector engineering and pre-clinical testing of neuron-targeted AAV9-based constructs for STXBP1-related neurodevelopmental and epileptic encephalopathies. Candidate vectors designed to target specific neuronal types and detarget tissues associated with toxicity produced robust phenotypic reversal in Stxbp1 +/− mice and were well tolerated in monkeys.

The Physics of FTL Travel

Can humanity ever travel faster than light, or does every shortcut through spacetime break causality itself? We explore warp drives, wormholes, tachyons, and why the universe pushes back.

Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur.
Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur–… SFIA Merchandise: https://isaac-arthur-shop.fourthwall… 🌐 Visit our Website: http://www.isaacarthur.net ❤️ Support us on Patreon: / isaacarthur ⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-a… 👥 Facebook Group: / 1,583,992,725,237,264 📣 Reddit Community: / isaacarthur 🐦 Follow on Twitter / X: / isaac_a_arthur 💬 SFIA Discord Server: / discord Credits: The Physics of FTL Travel Written, Produced & Narrated by: Isaac Arthur Editor: Lukas Konecny Music Courtesy of Stellardrone & Chris Zabriskie Select imagery/video supplied by Getty Images Chapters 0:00 Intro 0:12 Faster Than Light Is the Wrong Question 4:18 Spacetime Engineering: Moving the Map Instead of the Ship 5:24 Warp Drives: Surfing Spacetime 11:46 Wormholes: Shortcuts with a Side of Time Travel 13:20 Hyperspace: Shortcuts Through the Bulk 15:11 Solitons: The Positive Energy Challenge 17:35 The Krasnikov Tube: Building a Star-Road 20:30 Natural Relativistic Loopholes: Cosmic Strings and Tipler Cylinders 25:05 Tachyons: The Simplest Way to Break Time 28:04 Vacuum & Time-Advance Effects: When Causality Bends, Just a Little 32:19 Quantum Red Herrings 35:42 Nebula 36:54 Why the Universe Pushes Back: Chronology Protection and Self-Defeating Physics.

🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall
🌐 Visit our Website: http://www.isaacarthur.net.
❤️ Support us on Patreon: / isaacarthur.
⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-a
👥 Facebook Group: / 1583992725237264
📣 Reddit Community: / isaacarthur.
🐦 Follow on Twitter / X: / isaac_a_arthur.
💬 SFIA Discord Server: / discord.
Credits:
The Physics of FTL Travel.
Written, Produced \& Narrated by: Isaac Arthur.
Editor: Lukas Konecny.
Music Courtesy of Stellardrone \& Chris Zabriskie.
Select imagery/video supplied by Getty Images.

Chapters.
0:00 Intro.
0:12 Faster Than Light Is the Wrong Question.
4:18 Spacetime Engineering: Moving the Map Instead of the Ship.
5:24 Warp Drives: Surfing Spacetime.
11:46 Wormholes: Shortcuts with a Side of Time Travel.
13:20 Hyperspace: Shortcuts Through the Bulk.
15:11 Solitons: The Positive Energy Challenge.
17:35 The Krasnikov Tube: Building a Star-Road.
20:30 Natural Relativistic Loopholes: Cosmic Strings and Tipler Cylinders.
25:05 Tachyons: The Simplest Way to Break Time.
28:04 Vacuum \& Time-Advance Effects: When Causality Bends, Just a Little.
32:19 Quantum Red Herrings.
35:42 Nebula.
36:54 Why the Universe Pushes Back: Chronology Protection and Self-Defeating Physics.

Electric ‘nose’ can smell when your food’s gone bad

Most of us have used the sniff test to decide whether a slightly expired bottle of milk or a week-old box of takeout is still good to eat. But while the human nose can be quite astute, it doesn’t always catch everything. Each year, millions of people in the U.S. are sickened by food-borne pathogens that thrive in undercooked or spoiled food.

Luckily for our collective stomachs, a new “electronic nose” developed at UC Berkeley can detect the scents associated with spoiled food much more accurately than the human nose. It can also sniff out the presence of common food allergens, like walnuts and peanuts, which can be deadly for those with sensitivities. The nose is described in a new study published in the journal Science Advances.

“I think ‘smart’ fridges—which come with sensors that you can control on your phone—would be a great application for this kind of technology,” said study lead author Carla Bassil, a Ph.D. student in electrical engineering and computer sciences at Berkeley and a member of the Javey Research Group. “How great would it be if your fridge could tell you, ‘Hey, your broccoli’s going to go bad soon, so you should probably eat that,’ Or, ” Your chicken is on its last day’?”

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