Resource Abundance Weekly Review 2026-06-18

Week In Review

This week’s research crop returns again and again to a single idea: doing more with what we already have. Two papers published on June 11 hint at how granular and microbial systems can be re-engineered as resources rather than nuisances. A team led by the University of Birmingham showed that ordinary rice grains exhibit a strange “rate-softening” behavior that turns them into the basis for a stiffness-tunable smart material (Rice grains as a rate-softening smart material). The Chinese Academy of Sciences, meanwhile, built a living biobank from acid mine drainage — turning some of the planet’s most hostile mining waste into a library of organisms that may one day clean up the very pollution they came from (A living library of microbes from acid mine drainage).

Materials scientists are also reaching for new abstractions. Engineers at the University of Colorado Boulder reported on entangled, staple-like particles that lock and unlock on command, behaving “like liquid metal” yet built from microscopic mechanical hooks (Entangled staple-like particles inspire reconfigurable materials). A separate collaboration between Carnegie Mellon, Stanford, and Purdue used patterned gold films to push four times more heat across a nanoscale vacuum gap than conventional methods allow, an advance with direct implications for chip cooling and waste-heat recovery (Gold metamaterials supercharge near-field heat transfer). On the chemistry side, the Dalian Institute of Chemical Physics described a redesigned catalyst that triples methanol yields from CO₂, turning a long-standing trade-off in industrial carbon recycling into a practical lever (Tripling methanol production from CO₂).

The industrial side of resource abundance moved in parallel. At GreenTech Amsterdam, judges named a wireless plant wearable, an AI greenhouse-control mesh, and an autonomous moth-monitoring system as the year’s standout innovations in controlled-environment agriculture (GreenTech Amsterdam crowns 2026 Innovation Award winners). At Osaka Metropolitan University, researchers integrated maximum-power-point tracking directly into an electrolyzer, producing a self-regulating artificial photosynthesis device that needs no batteries to make formic acid from sunlight, water, and CO₂ (A battery-free artificial photosynthesis device). Ben-Gurion University researchers reverse-engineered how damselflies achieve their saturated colors, opening a route to non-toxic structural pigments that could displace synthetic dyes (How damselflies make hyper-saturated colors).

Two heavy-industry stories rounded out the week. Sweden’s Stegra moved to close a €1.4 billion financing round to finish the world’s first commercial-scale hydrogen-based green-steel plant at Boden (Stegra closes financing for Boden green-steel plant), and a team at the National University of Singapore reported a low-cost additive that addresses the dendrite and conductivity problems holding back all-solid-state sodium batteries — a potential path to grid-scale storage that bypasses lithium altogether (A safer all-solid-state sodium battery). Taken together, the week’s items sketch a coherent picture: abundance increasingly comes from cleverer use of mundane stuff — rice, gold films, microbes, sunlight, sodium — rather than from finding more of the rare and expensive.

Items

Rice grains as a rate-softening smart material

An international team led by the University of Birmingham, publishing in Matter on June 11, reported that packed rice grains behave in a way that is almost the inverse of most engineered materials: they weaken when compressed quickly and remain stiff when compressed slowly. According to the press summary, friction between grains drops sharply at high loading rates, collapsing the internal force networks that ordinarily carry the load.

The researchers used this counterintuitive “rate softening” to build a composite granular metamaterial. By mixing rice grains with sand — which exhibits the more familiar “rate-strengthening” response — they produced a single material whose stiffness inverts depending on whether it is squeezed gently or struck hard. A soft robot built from such a composite could remain compliant during routine handling and stiffen instantly when it encounters an obstacle.

The team frames the work as a route to safer soft robotics, adaptive protective equipment, and reconfigurable structures, all built from cheap and biodegradable feedstock. It also reframes an everyday agricultural commodity as a programmable mechanical resource — a small but evocative example of resource abundance through better understanding rather than synthesis.

Source: ScienceDaily

A battery-free artificial photosynthesis device

Researchers at Osaka Metropolitan University, in a paper published in EES Solar and summarized on June 11, demonstrated an artificial photosynthesis system that turns sunlight, water, and carbon dioxide into formic acid without the auxiliary batteries or control electronics that have made earlier prototypes complex and expensive. The trick was to embed the maximum-power-point-tracking function — the optimization step that keeps a solar device near its most efficient operating point — directly into the electrolyzer’s chemistry.

In their demonstration setup, the device produced enough formic acid to power a miniature pavilion diorama, illustrating both the steady output under varying sunlight and the potential to drive small-scale applications. Formic acid is a useful hydrogen carrier and feedstock for fuel cells, so the result is part of a broader effort to make solar fuels practical at distributed scales.

By eliminating the battery and external control hardware, the design removes one of the larger cost and durability barriers to solar-fuel deployment. The authors position the work as a step toward modular, low-maintenance devices that could one day make chemical fuels from sunlight at the rooftop or community level rather than only in centralized plants.

Source: Tech Xplore

A living library of microbes from acid mine drainage

A team at the Institute of Microbiology, Chinese Academy of Sciences, published in Environmental Science and Ecotechnology on June 11, constructed what they call the Microbial Biobank of Acid Mine Drainage (mbAMD): a culture collection of 652 isolates spanning 42 species, including 21 new taxa, drawn from three Chinese mining sites. According to the EurekAlert summary, the collection covers about 86.7 percent of the global AMD core microbiome.

Acid mine drainage — the metal-laden, sulfuric runoff from active and abandoned mines — is one of the most persistent forms of industrial pollution, and more than 97 percent of the organisms living in it had never before been cultured in the lab. Functional tests on the new collection showed that 36 species actively metabolize iron or sulfur, including the first pure cultures of acid-tolerant sulfate reducers, organisms long sought because they can precipitate dissolved metals out of low-pH water.

The implications are twofold. As a remediation toolkit, these strains could be developed into bioreactors that turn toxic runoff into harmless solids and recoverable metals. As a bio-mining toolkit, the same chemistry could selectively pull copper, nickel, or cobalt from waste streams, treating yesterday’s pollution as today’s ore body.

Source: EurekAlert

Entangled staple-like particles inspire reconfigurable materials

Engineers at the University of Colorado Boulder, in work covered by ScienceDaily on June 15, showed that dense piles of staple-shaped particles tangle into a material with an unusual combination of properties: high tensile strength, high toughness, and the ability to come apart on demand. Pull on the pile and it resists like a solid; vibrate it the right way and it loosens into separate pieces.

The team systematically varied particle geometry and found that simple two-legged “staples” had the greatest tendency to interlock. They could then tune the level of entanglement with vibration: a light shake interlocked the particles into a stronger configuration, while a stronger shake unraveled them. The result is a granular metamaterial whose stiffness and connectivity can be programmed from outside.

The researchers describe potential applications in recyclable buildings, reconfigurable structures, and robotic components that can be assembled and disassembled without bonding or melting. By replacing chemistry-based joining with geometry-based entanglement, the approach hints at a building material that is durable in use but trivially separable at end of life — a structural cousin to the chemical-recycling story playing out in plastics.

Source: ScienceDaily

Gold metamaterials supercharge near-field heat transfer

A Carnegie Mellon-led team working with collaborators at Stanford and Purdue, publishing in Nature and covered in a June 6 ScienceDaily summary, showed that patterned gold films separated by a nanoscale vacuum gap can carry up to four times more heat than equivalent unpatterned surfaces. The mechanism is a resonant interaction between the gold microstructures and surface phonon polaritons — waves of vibrational energy that propagate along material interfaces.

The setup places two microscopically textured gold-on-membrane chips face-to-face, with their surfaces separated by less than the wavelength of thermal radiation. In that “near-field” regime, the rules for radiative heat transfer change, and engineered surfaces can move energy across the gap far more efficiently than blackbody physics predicts.

The practical implications run two directions. In chip cooling, the technique could let dense electronics dump heat to a nearby sink without physical contact, which avoids the mechanical stresses and reliability problems of conventional thermal interfaces. In energy harvesting, the same effect could push solid-state waste-heat-to-electricity converters past efficiency ceilings that currently limit their economic deployment. Both are routes to using existing energy and materials more thoroughly.

Source: ScienceDaily

Tripling methanol production from CO₂

Researchers at the Dalian Institute of Chemical Physics, part of the Chinese Academy of Sciences, reported on June 13 a redesigned catalyst that produces about three times as much methanol from carbon dioxide as standard commercial copper-zinc-aluminum systems under comparable conditions. The result was summarized by ScienceDaily and addresses a long-standing tension in industrial CO₂ utilization.

The chemistry of converting CO₂ to methanol is thermodynamically favored at low temperatures, but CO₂ is hard to activate when conditions are mild, so catalysts perform sluggishly. Raise the temperature and activity improves, but a competing reaction — the reverse water-gas shift — starts to dominate and divert the carbon toward unwanted carbon monoxide. The result is a frustrating trade-off in which more activity has historically meant worse selectivity.

The Dalian team’s catalyst spatially separates the steps that activate CO₂ from the steps that build the C-O bond, letting each happen on the surface best suited to it. By breaking the previously coupled trade-off, the catalyst raises both rate and selectivity at once. Methanol is a workhorse industrial chemical and a fuel precursor, so a tripling of yield from waste CO₂ has direct implications for circular-carbon manufacturing economics.

Source: ScienceDaily

GreenTech Amsterdam crowns 2026 Innovation Award winners

The GreenTech Amsterdam trade show, held June 9-11 at RAI Amsterdam, named the winners of its 2026 Innovation Awards on June 10. The Innovation Award went to Sensie for Sensie Omni, a wireless plant wearable that translates real-time root, climate, and plant signals into proactive growing instructions. The Concept Award went to MANNA CEA for MESH, a modular AI greenhouse-control ecosystem built on Bluetooth Mesh and edge intelligence. A newly created Impact Award went to PATS for PATS-C, an automated moth-monitoring system that predicts caterpillar outbreaks and lets growers time biocontrol interventions precisely.

The opening ceremony also surfaced sector-level numbers. Dutch Minister for Food Security, Fisheries and Horticulture Silvio Erkens cited 24 percent growth over five years for the horticulture sector, even when adjusted for inflation, and framed controlled-environment agriculture as one of the more resilient parts of an otherwise turbulent food economy. The opening keynote by Lisanne Buik argued that AI in horticulture extends a grower’s perception into signals and timescales that no human could sustain unaided.

Three points stand out from a resource-abundance angle. The winners cover the full intervention stack — sensing, control, and pest prediction — that controlled-environment systems need to push yields per square meter and per liter of water higher. Together they sketch what indoor farming becomes when it is treated less as a real-estate play and more as a precision biological process.

Source: Greenhouse Grower

How damselflies make hyper-saturated colors

Researchers at Ben-Gurion University of the Negev, in a EurekAlert release dated June 9, described for the first time how damselflies produce some of the most saturated colors in the natural world. The team showed that the insects’ wings and bodies use a layered combination of structural color — where nanoscale geometry controls light — and absorbing pigments to push past the saturation limits achievable by either mechanism alone.

The biological trick is to stack a structural color generator over a strongly absorbing background. The structure produces a narrow band of reflected wavelengths; the absorber removes everything that would otherwise leak through and wash the color out. The result is a color that is purer than either layer could produce on its own, achieved with very little material.

For materials science, the work supplies a design template for synthetic photonic pigments that don’t depend on heavy-metal dyes or toxic intermediates. Industries from cosmetics to textiles to packaging consume enormous quantities of colorants every year, many of them difficult to manufacture sustainably or recycle safely. A biologically inspired route to durable, vivid color from cheap, abundant materials would let those sectors decouple their visual richness from their environmental footprint.

Source: EurekAlert

Stegra closes financing for Boden green-steel plant

Stegra, the Swedish startup building the world’s first commercial-scale hydrogen-based steel mill at Boden, announced in April that it had agreed in principle on a €1.4 billion financing round led by a Wallenberg Investments consortium, with closing expected during June 2026. Trade and policy coverage this week described the financing as decisive for completing construction of a plant designed to produce 5 million tonnes per year of low-carbon steel.

The Boden process uses hydrogen made from renewable electricity to reduce iron ore — pulling oxygen off the ore as water rather than CO₂ — and then powers the steelmaking with 100 percent renewable electricity. The combination eliminates the bulk of the emissions associated with traditional blast-furnace steel, which is one of the largest single sources of industrial CO₂ globally. CEO Henrik Henriksson said it will take roughly 18 to 24 months from financing close to first production.

The Stegra story is also a reality check on the pace of industrial transformation. The financing was widely described as a rescue round after months of slowed progress, and other green-steel projects have lost momentum this year. But if Boden comes online on the new timeline, it will be the first time anyone has made hydrogen-based primary steel at the scale where economics — rather than demonstration optics — actually decide whether the technology spreads.

Source: Canary Media

A safer all-solid-state sodium battery

A team led by Associate Professor Palani Balaya at the National University of Singapore, in work summarized by Tech Xplore in late May, reported that a single low-cost additive can simultaneously address the two problems that have held back all-solid-state sodium batteries: poor ion conductivity in solid polymer electrolytes, and dendrite formation at the metal anode.

Sodium-ion chemistry is attractive for grid storage because sodium is abundant, cheap, and politically uncomplicated relative to lithium. Liquid-electrolyte sodium cells are already entering mass production; the all-solid-state version, in which the liquid is replaced by a polymer, promises better safety and energy density but has been brittle and short-lived in practice. The Singapore additive raises the polymer’s conductivity into a useful range and suppresses the dendrite growth that otherwise short-circuits the cell.

The authors frame the work as a credible pathway to safe, affordable sodium batteries for both grid-scale storage and electric vehicles. Combined with announcements this season of large commercial sodium-ion battery contracts, the trend points to an energy-storage sector that increasingly treats lithium as one option among several rather than the only chemistry that scales.

Source: Tech Xplore