A rod-like YbZn nanocluster was constructed, which could be an activatable NIR probe for quercetin, with a short response time (5 s) and a low detection limit (0.75 μM). Theoretical simulations reveal that strong π···π interactions and hydrogen bonding result in good orbital overlap for charge transfer from quercetin to the cluster.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1021/acs.inorgchem.4c05572 | DOI Listing |
Inorg Chem
March 2025
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Semiconductor Chemistry Center, School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
A rod-like YbZn nanocluster was constructed, which could be an activatable NIR probe for quercetin, with a short response time (5 s) and a low detection limit (0.75 μM). Theoretical simulations reveal that strong π···π interactions and hydrogen bonding result in good orbital overlap for charge transfer from quercetin to the cluster.
View Article and Find Full Text PDFAdv Sci (Weinh)
March 2025
Strait Laboratory of Flexible Electronics (SLoFE), Fujian Key Laboratory of Flexible Electronics, Strait Institute of Flexible Electronics (Future Technologies), Fujian Normal University, Fuzhou, 350117, China.
Semiconducting open-shell radicals (SORs) have promising potential for the development of phototheranostic agents, enabling tumor bioimaging and boosting tumorous reactive oxygen species (ROS). Herein, a new class of semiconducting perylene diimide (PDI), designated as PDI(Br) with various numbers of bromine (Br) atoms modified on PDI's bay/ortho positions is reported. PDI(Br) is demonstrated to transform into a radical anion, [PDI(Br)], in a reducing solution, with a typical g-value of 2.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
March 2025
Nanyang Technological University, School of Chemistry, Chemical Engineering and Biotechnology, 70 Nanyang Drive, 637457, Singapore, SINGAPORE.
Molecular chemiluminescence probes with near-infrared (NIR) emission offer promising benefits in deciphering complex pathological processes in a living system, as NIR chemiluminescence minimizes autofluorescence, enhances deep-tissue penetration, and improves signal-to-noise ratio. Molecular engineering with single luminophore design and dual-luminophore design with intramolecular energy transfer provides way to develop conventional chemiluminophore scaffolds into NIR chemiluminescence probes with ideal chemiluminescence quantum yield and half-life. By virtue of the structural diversity, 1,2-dioxetane-based NIR chemiluminophores with biomarker activity have been developed.
View Article and Find Full Text PDFAnal Chem
March 2025
College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
Alzheimer's disease (AD), a progressive neurodegenerative disorder, is associated with the complete loss of cognition, and its pathogenesis has been suggested to be closely linked to oxidative stress in the early stage. However, there is currently a lack of effective methods to provide direct evidence for dynamic development of the oxidative stress status during AD progression. Herein, through manipulating the multiple energy transfer between 4f electronic levels of lanthanide ions (Ln), we proposed an energy interception strategy to construct activatable NIR-IIb nanoprobe for visualizing oxidative stress level.
View Article and Find Full Text PDFPhys Chem Chem Phys
March 2025
Institute for Physical and Theoretical Chemistry, Goethe-University Frankfurt, Max-von-Laue Str. 7, 60438 Frankfurt, Germany.
Photocages are powerful tools for spatiotemporal control of molecule release or biological activity. However, many photocages are unsuitable for biological experiments since they are mostly activated by harmful ultraviolet (UV) light and often lack a sufficient optical readout. Thus, there is a high demand for near infrared (NIR) and/or two-photon activatable photocages with a characteristic readout.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!