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Macroscopic Gold Cluster Helical Tendrils.
J Am Chem Soc
January 2025
Henan Key Laboratory of Crystalline Molecular Functional Materials, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.
Handedness-controllable macroscopic helices are needed for understanding the chirality transfer through scales and design of high-performance devices. Bottom-up self-assembly rarely affords macroscopic helical superstructures because of accumulating disorder that is difficult to avoid during hierarchical self-assembly. Here, we demonstrate that tetragold clusters can assemble into macroscopic helices at the centimeter scale.
View Article and Find Full Text PDFPreparation of Octacalcium Phosphate Thin Film with Exposing Reactive Crystalline Plane in Biological Fluid.
ACS Biomater Sci Eng
January 2025
Department of Materials Science and Bioengineering, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan.
Octacalcium phosphate (OCP) has been used as a bone replacement material due to its higher bone affinity. However, the mechanism of affinity has not been clarified. Since the 100 crystalline plane of OCP is closely involved in the biological reactions during osteogenesis, it is important to expose the 100 crystalline plane of OCP to the biological fluid to precisely measure the interfacial reactions.
View Article and Find Full Text PDFEngineering conductive covalent-organic frameworks enable highly sensitive and anti-interference molecularly imprinted electrochemical biosensor.
Biosens Bioelectron
January 2025
Key Laboratory of Molecular Medicine and Biotherapy, the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China. Electronic address:
Covalent organic frameworks (COFs) have drawn great interest in electrochemical sensing. However, most are integrated as enrichment units or reaction carriers and are co-modified with metal nanomaterials. Few studies use the single pristine COFs as an electrochemical signal amplifier.
View Article and Find Full Text PDFSynthesis of Resorcinol and Chlorophenol from Irradiation of 1,3-Dichlorobenzene in a Water Ice Environment by Low-Energy Electrons.
Int J Mol Sci
January 2025
Faculty of Sciences, Siedlce University, 3 Maja 54, 08-110 Siedlce, Poland.
Dichlorobenzene is beneficial to industries, however, the release of this compound into the environment causes significant damage to ecosystems and human health, as it exhibits resistance to biodegradation. Here, we show that chlorophenol and resorcinol are synthesized from 1,3-dichlorobenzene in a water ice environment (1) directly on a poly-crystalline gold surface and (2) after low-energy (<12 eV) electron irradiation of admixture films. For the latter, at energies below 5.
View Article and Find Full Text PDFChallenging the ideal strength limit in single-crystalline gold nanoflakes through phase engineering.
Nat Commun
January 2025
Center for X-mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou, China.
Materials usually fracture before reaching their ideal strength limits. Meanwhile, materials with high strength generally have poor ductility, and vice versa. For example, gold with the conventional face-centered cubic (FCC) phase is highly ductile while the yield strength (~10MPa) is significantly lower than its ideal theoretical limit.
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