Nano ‘Stars of David’ Offer Promise of Using Sunlight to Make ‘Green’ Fuel

Nanoparticle developed at Hebrew University

This nanoparticle, 10,000 times smaller than the width of a human hair, could star in clean energy applications.

Researchers at Hebrew University of Jerusalem have created an artificial nanoparticle that looks like a six-pointed Star of David and offers potential for environmental applications, including use as photocatalysts for separating hydrogen from water to create clean fuel.

As described in the Jerusalem Post, “The particles are nano-sized, hexagonal crystals, each with a tiny metal frame wrapping around and encasing them just like a bird’s cage, but 100 million times smaller. Because the nanocage is hexagonal, when looked at from above, the images appear as Stars of David. No one had ever seen hybrid nanoparticles form with such a cage structure before.”

The researchers are just beginning to explore possible applications for the new particles. Initial research has already demonstrated the possibility of using the nano-cages as sensors to detect tiny quantities of hydrogen peroxide. The scientists hope this capability can be harnessed to produce new sensors for diabetes diagnostics and other medical applications.

Image via Jerusalem Post

Read more on green nano developments on Green Prophet:

A Solar Panel That Washes Itself
Nano Technology’s Cleaning Up Space Junk
Greening Your Flat Screens With Lab-Grown Organic LEDs

Ira Moskowitz
Ira Moskowitzhttps://www.greenprophet.com/
When his kids were small, Ira would point to litter on the ground and tell them: “That makes me angry!” He still gets angry about pollution, waste and abusive treatment of our world, but is encouraged by the growing awareness of environmental issues and has been following the latest developments in cleantech with great interest. Ira grew up in the green hills of western Massachusetts and moved to Israel in the early 1980s after completing an MA in Middle Eastern Studies. He has worked as a software developer and journalist, and translates works of Hebrew fiction and non-fiction to English. Ira is trying to age gracefully, but refuses to surrender his youthful belief in the potential for change, including a collaborative future for the peoples of the Middle East. To contact Ira, email ira (at) greenprophet (dot) com.

TRENDING

Astro uses AI to help procure land for renewable energy

For oil-rich, environmentally vigilant Gulf states, Astro isn’t just another startup story. It is a blueprint for accelerating an energy transition that is now existential, not optional.

Luxury tower in Jerusalem ruins its sacred heritage and eco-architects are worried

Critics of a new set of luxury towers including Israeli-Greek architect Elias Mesinas, warn that the scale of the towers, loss of public green space, and creeping luxury-led gentrification risk undermining Jerusalem’s historic skyline, community fabric, and long-standing planning principles — raising a fundamental question: not whether Jerusalem should densify, but how it can do so responsibly while preserving what makes the city unique.

Blackdot’s painless AI-based tattoos will make inked skin less taboo?

Blackdot’s AI-powered tattoo machine promises precision and less pain, but sparks debate over health risks, artistry, and spirituality. From religious prohibitions to smart tattoos, the future of ink is being rewritten by technology.

Battling the Blaze: Israel’s Wildfire Response

On a dry, windy afternoon in late April 2025,...

Don’t Regret Your Host: Alternatives to SiteGround That Impress

Discover top alternatives to SiteGround that offer impressive features and performance. Make an informed choice for your hosting needs today!

Turning Your Energy Consultancy into an LLC: 4 Legal Steps for Founders in Texas

If you are starting a renewable energy business in Texas, learn how to start an LLC by the books.

Tracking the Impacts of a Hydroelectric Dam Along the Tigris River

For the next two months, I'll be taking a break from my usual Green Prophet posts to report on a transnational environmental issue: the Ilısu Dam currently under construction in Turkey, and the ways it will transform life along the Tigris River.

6 Payment Processors With the Fastest Onboarding for SMBs

Get your SMB up and running fast with these 6 payment processors. Compare the quickest onboarding options to start accepting customer payments without delay.

Qatar’s climate hypocrisy rides the London Underground

Qatar remains a master of doublethink—burning gas by the megaton while selling “sustainability” to a world desperate for clean air. Wake up from your slumber people.

How Quality of Hire Shapes Modern Recruitment

A 2024 survey by Deloitte found that 76% of talent leaders now consider long-term retention and workforce contribution among their most important hiring success metrics—far surpassing time-to-fill or cost-per-hire. As the expectations for new hires deepen, companies must also confront the inherent challenges in redefining and accurately measuring hiring quality.

8 Team-Building Exercises to Start the Week Off 

Team building to change the world! The best renewable energy companies are ones that function.

Thank you, LinkedIn — and what your Jobs on the Rise report means for sustainable careers

While “green jobs” aren’t always labeled as such, many of the fastest-growing roles are directly enabling the energy transition, climate resilience, and lower-carbon systems: Number one on their list is Artificial Intelligence engineers. But what does that mean? Vibe coding Claude? 

Somali pirates steal oil tankers

The pirates often stage their heists out of Somalia, a lawless country, with a weak central government that is grappling with a violent Islamist insurgency. Using speedboats that swarm the targets, the machine-gun-toting pirates take control of merchant ships and then hold the vessels, crew and cargo for ransom.

Related Articles

Popular Categories