Welcome back to the Project Clean Up (PCU) weekly newsletter! Our Point-of-Origin Challenge continues. We have successfully tackled the visible waste in the apartment—the food scraps and the bulky boxes. But what about the waste we cannot see?

Welcome back to the Project Clean Up (PCU) weekly newsletter! Our challenge to the industrial design world continues. We have neutralized the odor and decay of biological output using ambient desiccants. Now, we confront the "Air Problem."

Welcome back to the Project Clean Up (PCU) weekly newsletter! Last week, we issued a massive challenge to the industrial design world: solve the "Apartment Void" by creating invisible, frictionless systems to manage output at the source.

Welcome back to the Project Clean Up (PCU) weekly newsletter! Last week, we introduced the concept of the "Micro-Loop," focusing on how apartment dwellers can build sustainable habits through source reduction—starving the communal dumpster by controlling what comes through the front door.

Welcome back to the Project Clean Up (PCU) weekly newsletter! For the past few months, we have explored the absolute frontier of materials science—from unbreakable alloys to dissolving circuit boards. This week, we are pulling back from the laboratory and stepping into the living room.

Welcome back to the Project Clean Up (PCU) weekly newsletter! As we wrap up our Extreme Frontier series, we address the lifeblood of any moving machine: the lubricant. This week, we introduce Ionic Liquids.

Welcome back to the Project Clean Up (PCU) weekly newsletter! We have the "Unbreakable Seal" in our metals; now, we give our extreme hardware its "Skin." This week, we introduce Cryo-Resilient Vitrimers.

Welcome back to the Project Clean Up (PCU) weekly newsletter! We have perfected the "Transient Suite" for our cities and oceans. Now, we look at the Extreme Frontier.

Welcome back to the Project Clean Up (PCU) weekly newsletter! We are concluding our "Total Transient Suite" with the most efficient production method known to science: Self-Assembly.

Welcome back to the Project Clean Up (PCU) weekly newsletter! We have successfully built a transient physical suite; now, we give it a brain. This week, we explore Organic Neuromorphic Computing.

Welcome back to the Project Clean Up (PCU) weekly newsletter! We are concluding our "Total Deconstruction" series with the most difficult component to neutralize: the battery. This week, we introduce Probiotic Biobatteries.

Welcome back to the Project Clean Up (PCU) weekly newsletter! We have reached a milestone in our "Post-Metal" series. By combining the liquid connections and 2D shielding from previous weeks with Water-Soluble Biopolymer Substrates, we can now conceptualize a device that truly "disappears" when its job is done.

Welcome back to the Project Clean Up (PCU) weekly newsletter! Last week, we explored MXenes as the silver-slayer in shielding. This week, we tackle the connection itself: Gallium-based Liquid Metal Alloys.

Welcome back to the Project Clean Up (PCU) weekly newsletter! Last week, we explored the "Post-Metal" shift toward Carbon Nanotubes and Graphene. This week, we introduce the next powerhouse in that lineup: MXenes.

Welcome back to the Project Clean Up (PCU) weekly newsletter! Last week, we investigated FOSA and the dangers of volatile chemical "bridges." This week, we pivot to the very hardware that powers our world: the search for alternatives to copper, silver, and gold.

Welcome back to the Project Clean Up (PCU) weekly newsletter! Last week, we looked at the "chemical magnets" of DAC Sorbents and how they are scrubbing our atmosphere. This week, we focus on a compound that often hitches a ride in that same atmosphere: FOSA (Perfluorooctane Sulfonamide).

Welcome back to the Project Clean Up (PCU) weekly newsletter! Last week, we assessed our 2026 trajectory and the global shift toward destructive remediation. This week, we pivot to a material that doesn't just clean our water, but cleans our air: Direct Air Capture (DAC) Sorbents.

Welcome to the first full update of 2026! Last week, we closed out the year by unmasking the "replacement trap" of GenX. As we enter this new year, the focus of PCU is Scale.

Welcome back to the Project Clean Up (PCU) weekly newsletter! Last week, we explored the molecular architecture of MOFs, the molecular sponges helping us capture pollutants with extreme precision. This week, we return to the "forever chemical" frontline to discuss GenX (Hexafluoropropylene Oxide Dimer Acid).