Singapore Science News API

{
    "totalArticles": 16758,
    "articles": [
        {
            "id": "4b884f86aa475d84648571274fea19f5",
            "title": "This simple fatty acid could restore failing vision",
            "description": "Scientists at UC Irvine have found a way to potentially reverse age-related vision loss by targeting the ELOVL2 “aging gene” and restoring vital fatty acids in the retina. Their experiments in mice show that supplementing with specific polyunsaturated fatty acids—not just DHA—can restore visual function and even reverse cellular aging signs.",
            "content": "Researchers at the University of California, Irvine are now exploring that possibility. Their latest study investigates a potential treatment aimed at slowing or even reversing \"aging\" in the eye, while also helping prevent conditions such as age-rel... [4003 chars]",
            "url": "https://www.sciencedaily.com/releases/2026/04/260422091043.htm",
            "image": "https://www.sciencedaily.com/images/1920/female-eye-aging.webp",
            "publishedAt": "2026-04-23T01:08:20Z",
            "lang": "en",
            "source": {
                "id": "81a05fd2712964dbdb32b1c6a27646fd",
                "name": "Science Daily",
                "url": "https://www.sciencedaily.com"
            }
        },
        {
            "id": "7f59ad5d852200fa1dc6a5fe9bfa535a",
            "title": "Electronic origin of reorganization energy in interfacial electron transfer",
            "description": "Electron transfer (ET) reactions underpin energy conversion and chemical transformations in both biological1,2 and abiological3–5 systems. The efficiency of any ET process relies on achieving a desired ET rate within an optimal driving force range. Marcus theory6,7 provides a microscopic framework for understanding the activation free energy—and therefore the rate—of ET in terms of a key parameter: the reorganization energy. For electrified solid–liquid interfaces, it has long been conventionally understood that only factors in the electrolyte phase are responsible for determining the reorganization energy and that the electronic density of states (DOS) of the electrode only serves to dictate the number of thermally accessible channels for ET5,8–12. Here we show instead that the electrode DOS plays a central role in governing the reorganization energy, far outweighing its conventionally assumed role. Using atomically layered heterostructures, we tune the DOS of graphene and measure outer-sphere ET kinetics. We find the ensuing variation in ET rate arises from strong modulation in a reorganization energy associated with image potential localization in the electrode. Here we redefine the traditional paradigm of heterogeneous ET kinetics, revealing a deeper role of the electrode electronic structure in interfacial reactivity. By tuning graphene’s electronic density of states, the study shows electrode electronic structure—not just the electrolyte—dominates reorganization energy and thus controls outer-sphere electron-transfer rates at solid–liquid interfaces.",
            "content": "Chemicals and materials\nNatural Kish graphite crystals (Grade 300, 99.99% purity) were procured from Graphene Supermarket. Hexagonal boron nitride crystals were provided by T. Taniguchi and K. Watanabe, and were used as received. Large, flat crystals... [44472 chars]",
            "url": "https://www.nature.com/articles/s41586-026-10311-2?error=cookies_not_supported&code=1166406d-408f-44d7-91ec-d64b55d7c181",
            "image": "https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41586-026-10311-2/MediaObjects/41586_2026_10311_Fig1_HTML.png",
            "publishedAt": "2026-04-22T23:25:52Z",
            "lang": "en",
            "source": {
                "id": "7abf0df285fbe93cdccffcc7c4088737",
                "name": "Nature",
                "url": "https://www.nature.com"
            }
        },
        {
            "id": "f69af346edea71e3042d97dd5d328257",
            "title": "Efficiency-optimized relativistic plasma harmonics for extreme fields",
            "description": "Bright harmonic radiation from relativistically oscillating laser plasmas offers a direct route for generating extreme electromagnetic fields. Theory predicts that under optimized conditions, the plasma medium can support strong spatiotemporal compression of laser energy in a coherent harmonic focus (CHF), delivering intensity boosts many orders of magnitude greater than the incident driving laser pulse1–4. Although diffraction-limited performance5 (spatial compression) and attosecond phase locking6–8 (temporal compression) have been demonstrated experimentally, efficient coupling of relativistically intense laser pulse energy into the emitted harmonic cone has not been realized so far. Here we demonstrate that this highly nonlinear interaction can be tailored to deliver the maximum conversion efficiencies predicted from simulations. By fine-tuning the temporal profile of the driving laser on sub-picosecond (<10−12 s) timescales, energies >9 mJ between the 12th and 47th harmonics are observed. These results are in agreement with the theoretically expected efficiency dependence on harmonic order, verifying that optimal conditions have been achieved in the generation process. This is the important final element required to achieve the expected intensity boosts from a CHF in experiments. Although obtaining spatiotemporal compression and optimal efficiency simultaneously remains challenging, the path to realizing extreme optical field strengths approaching the critical field of quantum electrodynamics (the Schwinger limit at >1016 V cm−1 or >1029 W cm−2) is now open, permitting all-optical studies of the quantum vacuum and new frontiers for intense attosecond science. Tailoring relativistic laser–plasma interactions on femtosecond timescales unlocks a direct route to extreme field generation using a coherent harmonic focus.",
            "content": "The generation of coherent extreme ultraviolet (XUV) and X-ray photons by high harmonic generation from solid targets (SHHG) relies on the formation of a steep electron density gradient tuned by the leading edge of a relativistically intense laser pu... [26823 chars]",
            "url": "https://www.nature.com/articles/s41586-026-10400-2?error=cookies_not_supported&code=92ace8ea-f3ff-43c1-861f-19865fee1ba9",
            "image": "https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41586-026-10400-2/MediaObjects/41586_2026_10400_Fig1_HTML.png",
            "publishedAt": "2026-04-22T23:25:52Z",
            "lang": "en",
            "source": {
                "id": "7abf0df285fbe93cdccffcc7c4088737",
                "name": "Nature",
                "url": "https://www.nature.com"
            }
        }
    ]
}