Sentinel-based index boosts tracking of Spartina alterniflora
Peer-Reviewed Publication
Updates every hour. Last Updated: 27-Jul-2025 03:10 ET (27-Jul-2025 07:10 GMT/UTC)
A pioneering research lab at the University of Illinois Urbana-Champaign has achieved another milestone using light-driven enzymatic reactions to convert simple biological building blocks into valuable chemicals. The team, part of the Center for Advanced Bioenergy and Bioproducts Innovation (CABBI), developed a clean, efficient way to make complex chemicals called chiral ketones through photocatalysis. Chiral molecules — commonly used in agrochemicals and medicines — exist in two mirror-image forms, like left and right hands, and often only one “hand” is effective or safe. This study offers a precise and eco-friendly way to make specific chiral molecules with complicated structures, supporting new opportunities to transform renewable carbon sources like bioenergy crops into high-value molecules.
The Wind Energy Research Department at the Korea Institute of Energy Research (KIER), led by Director Cheol Yoo, has developed a design platform and research-scale infrastructure to support the development of large wind turbine blades using in-house technology.
Dopamine plays a crucial role in regulating various brain functions, making the development of highly sensitive detection methods and precise quantitative analysis. techniques of great significance. However, realizing highly selective and sensitive detection of dopamine in complex biological environments remains a challenge. Here, we prepared 3D crumpled Ti3C2Tx structures loaded with Pt nanoparticles (Pt/Na- Ti3C2Tx) by wet chemical reduction and ion intercalation. The synergistic coupling between Pt nanoparticles and MXene support facilitates efficient electron transfer between dopamine and the electrode surface, thereby improving the sensing performance of dopamine. Furthermore, this wrinkled structure not only enhances the specific surface area by inhibiting the stacking of layered Ti3C2Tx nanosheets, but also effectively prevents the agglomeration of nanoparticles. The experimental results showed that Pt/Na- Ti3C2Tx possessed a wide linear range (0.1-100 μM), a low detection limit (0.029 μM), and a high sensitivity (0.556 μAμM-1cm-2). This work proposes an innovative strategy for achieving highly sensitive dopamine detection while advancing the utilization of MXene-based nanocomposites in electrochemical sensor development.
Micro-supercapacitors (MSCs) face significant limitations due to low energy density despite their high power density and long cycle life. In this study, single-layer Ti3C2Tx nanosheets are employed to fabricate a MXene-hydroxylated nanocellulose-carbon nanotube (MHC) composite ink, which is used to fabricate high-energy flexible MSCs via direct ink writing 3D printing technology. The introduction of the rheological modifier hydroxylated nanocellulose (HNC) not only constructs interlayer spacers to inhibit nanosheet restacking but also optimizes the rheological properties and 3D printability of the composite ink. Meanwhile, the synergistic effect of carbon nanotubes (CNTs) as conductive agents enhances interlayer electron transport and electrochemical performance. Benefiting from the rational design of the ink and printing process, the fabricated MSCs exhibit high-precision structures (electrode width of 250 μm, electrode area of 0.2625 cm2) and outstanding energy storage properties, achieving 543 mF cm-2 areal capacitance, 27.15 μWh cm-2 energy density, and 6 mW cm-2 power density, significantly surpassing previously reported MXene-based MSCs. Moreover, the flexible all-solid-state MSCs demonstrate excellent performance stability under mechanical bending, series/parallel module integration, and long-term cycling tests, providing a customizable energy storage solution for flexible wearable microelectronic systems.