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“Pillars” (2024), oil on linen, 84 x 96 inches. All images courtesy of Mario Moore and Library Street Collective, shared with permission Mario Moore’s Oil Paintings Bridge Past and Present to Spotlight Black Resilience and Style June 4, 2025 Kate Mothes In large-scale works in oil, Detroit-based artist Mario Moore taps into the legacy of European painting traditions to create bold portraits exploring the nature of veneration, self-determination, and the continuum of history. Moore’s work is currently on view in Beneath Our Feet at Library Street Collective alongside fellow Detroiter LaKela Brown. His new pieces nod to the Dutch and Flemish tradition of devotional painting, particularly religious garland paintings. Within elegant arrangements of flowers and foliage, he highlights Black figures relaxing or tending to gardens. “The Patron Saint of Urban Farming” (2025), oil on linen, 72 x 48 inches In “Watermelon Man,” a stone altar is surrounded by hibiscus and watermelons, both symbols of resilience. Historically, the latter represented self-sufficiency and freedom for Southern African Americans following Emancipation, but whites flipped the narrative into a stereotypical exemplar of poverty. Moore reclaims the fruit in the spirit of refined 17th-century still-lifes. The artist has long drawn on the culture and legacies of both Detroit and the U.S. more broadly through the lens of the Black diaspora. Earlier works like “Pillars” position Black figures in elegant dress within the vast wildernesses of the American frontier, bridging the past to explore how racial divisions continue to shape the present. An exhibition last summer at Grand Rapids Art Museum titled Revolutionary Times took his series A New Republic as a starting point, revisiting the history of Black Union soldiers during the Civil War. Moore learned that one of his ancestors, who had been enslaved as a child, later enlisted in the Union Army, spurring the artist’s exploration of the seminal mid-19th-century period of conflict and Western colonization. He positions present-day figures in contemporary dress within historical contexts, interrogating political and racial segregations. “Watermelon Man” (2025), oil on linen, 51 1/2 x 42 inches Through tropes of European painting like a self-portrait of the artist in mirrored reflections and poses in three-quarter profile, Moore renders individuals whose direct, confident gazes and elegant dress invoke Detroit style and pride. For Beneath Our Feet, Brown and Moore collaborated on a five-foot-wide bas-relief bronze coin. Each artist completed one side, with Mario’s contribution taking the form of a portrait of Brown. “Her profile echoes the conventional format of traditional American coinage, confronting the historic absence of Black women in national symbolism and positions of authority,” the gallery says. On the opposite side, Brown depicts a bouquet of collard greens symbolic of nourishment and community. For this exhibition, Brown and Moore “reflect on the wealth held in the earth beneath us—and the enduring question of who holds the rights to till, own, and shape that land,” says an exhibition statement. Detroit is home to ambitious urban gardening initiatives that aim for local food sovereignty, mirroring the resourcefulness of Black farmers throughout history. The artists “consider land not just as property but as history, inheritance, and possibility,” the gallery says. Beneath Our Feet continues through July 30 in Detroit. See more on Moore’s website and Instagram. “International Detroit Playa: Sheefy” (2022), oil on linen, 108 x 96 inches “These Are Not Yams But They Are Damn Good” (2025), oil on linen, 51 1/2 x 42 inches “Creation of a Revolutionary (Helen Moore)” (2023), oil on linen, 76 x 52 inches “Black” (2023), oil on linen, 48 x 48 inches “Garland of Resilience” (2025), oil on linen, 51 1/2 x 42 inches “Birth of Cool” (2023), oil on linen, 72 x 48 inches Installation view of ‘LaKela Brown and Mario Moore: Beneath Our Feet’ at Library Street Collective, Detroit Previous articleNext article

Researchers from the National University of Singapore (NUS) have developed a 3D printed, self-powered mechanoluminescent (ML) photonic skin designed for communication and safety monitoring in underwater environments. The stretchable device emits light in response to mechanical deformation, requires no external power source, and remains functional under conditions such as high salinity and extreme temperatures. The findings were published in Advanced Materials by Xiaolu Sun, Shaohua Ling, Zhihang Qin, Jinrun Zhou, Quangang Shi, Zhuangjian Liu, and Yu Jun Tan. The research was conducted at NUS and Singapore’s Agency for Science, Technology and Research (A*STAR). Schematic of the 3D printed mechanoluminescent photonic skin showing fabrication steps and light emission under deformation. Image via Sun et al., Advanced Materials. 3D printing stretchable light-emitting skins with auxetic geometry The photonic skin was produced using a 3D printing method called direct-ink-writing (DIW), which involves extruding a specially formulated ink through a fine nozzle to build up complex structures layer by layer. In this case, the ink was made by mixing tiny particles of zinc sulfide doped with copper (ZnS:Cu), a material that glows when stretched, with a flexible silicone rubber. These particles serve as the active ingredient that lights up when the material is deformed, while the silicone acts as a soft, stretchable support structure. To make the device more adaptable to movement and curved surfaces, like human skin or underwater equipment, the researchers printed it using auxetic designs. Auxetic structures have a rare mechanical property known as a negative Poisson’s ratio. Unlike most materials, which become thinner when stretched, auxetic designs expand laterally under tension. This makes them ideal for conforming to curved or irregular surfaces, such as joints, flexible robots, or underwater gear, without wrinkling or detaching. Encapsulating the printed skin in a clear silicone layer further improves performance by distributing mechanical stress evenly. This prevents localized tearing and ensures that the light emission remains bright and uniform, even after 10,000 cycles of stretching and relaxing. In previous stretchable light-emitting devices, uneven stress often led to dimming, flickering, or early material failure. Mechanical and optical performance of encapsulated photonic skin across 10,000 stretch cycles. Image via Sun et al., Advanced Materials. Underwater signaling, robotics, and gas leak detection The team demonstrated multiple applications for the photonic skin. When integrated into wearable gloves, the skin enabled light-based Morse code communication through simple finger gestures. Bending one or more fingers activated the mechanoluminescence, emitting visible flashes that corresponded to messages such as “UP,” “OK,” or “SOS.” The system remained fully functional when submerged in cold water (~7°C), simulating deep-sea conditions. In a separate test, the skin was applied to a gas tank mock-up to monitor for leaks. A pinhole defect was covered with the printed skin and sealed using stretchable tape. When pressurized air escaped through the leak, the localized mechanical force caused a bright cyan glow at the exact leak site, offering a passive, electronics-free alternative to conventional gas sensors. To test performance on soft and mobile platforms, the researchers also mounted the photonic skin onto a robotic fish. As the robot swam through water tanks at different temperatures (24°C, 50°C, and 7°C), the skin continued to light up reliably, demonstrating its resilience and utility for marine robotics. Comparison of printed photonic skin structures with different geometries and their conformability to complex surfaces. Image via Sun et al., Advanced Materials. Toward electronics-free underwater communication While LEDs and optical fibers are widely used in underwater lighting systems, their dependence on rigid form factors and external power makes them unsuitable for dynamic, flexible applications. In contrast, the stretchable ML photonic skin developed by NUS researchers provides a self-powered, adaptable alternative for diver signaling, robotic inspection, and leak detection, potentially transforming the toolkit for underwater communication and safety systems. Future directions include enhanced sensory integration and robotic applications, as the team continues exploring robust photonic systems for extreme environments. Photonic skin integrated into gloves for Morse code signaling and applied to robotic fish and gas tanks for underwater safety monitoring. Image via Sun et al., Advanced Materials. The rise of 3D printed multifunctional materials The development of the photonic skin reflects a broader trend in additive manufacturing toward multifunctional materials, structures that serve more than a structural role. Researchers are increasingly using multimaterial 3D printing to embed sensing, actuation, and signaling functions directly into devices. For example, recent work by SUSTech and City University of Hong Kong on thick-panel origami structures showed how multimaterial printing can enable large, foldable systems with high strength and motion control. These and other advances, including conductive FDM processes and Lithoz’s multimaterial ceramic tools, mark a shift toward printing entire systems. The NUS photonic skin fits squarely within this movement, combining mechanical adaptability, environmental durability, and real-time optical output into a single printable form. Read the full article in Advanced Materials Subscribe to the 3D Printing Industry newsletter to keep up with the latest 3D printing news. You can also follow us onLinkedIn and subscribe to the 3D Printing Industry YouTube channel to access more exclusive content. At 3DPI, our mission is to deliver high-quality journalism, technical insight, and industry intelligence to professionals across the AM ecosystem.Help us shape the future of 3D printing industry news with our2025 reader survey. Featured image shows a schematic of the 3D printed mechanoluminescent photonic skin showing fabrication steps and light emission under deformation. Image via Sun et al., Advanced Materials.