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Energy Aggregation for Illuminating Upconversion Multicolor Emission Based on Ho Ions.
ACS Appl Mater Interfaces
January 2025
School of Materials Science& Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
Lanthanide-doped upconversion luminescent nanoparticles (UCNPs) have garnered extensive attention due to their notable anti-Stokes shifts and superior photostability. Notably, Ho-based UCNPs present a complex energy level configuration, which poses challenges in augmenting their luminescence efficiency. Herein, a rational design strategy was used to enhance the upconversion luminescence intensity of Ho ions by improving the photon absorption ability and energy utilization efficiency.
View Article and Find Full Text PDFHighly sensitive and catalytic electrochemical aptamer-based biosensor for β-lactoglobulin via coupling redox recycling background minimization with DNAzyme amplification.
Anal Chim Acta
February 2025
Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China. Electronic address:
Background: β-lactoglobulin (β-Lg), a major allergen in dairy products, can trigger severe allergic reactions and even fatal outcomes in infants. In this work, we develop a new low background current redox recycling strategy by conjugating the electrochemical mediator to trimetallic hybrid nanoparticles (NPs)-dispersed graphene as the signal tag, which is coupled with DNAzyme amplifications to construct highly catalytic and ultrasensitive β-Lg aptasensor.
Results: Target β-Lg molecules bind aptamers in DNAzyme/aptamer duplexes to release active DNAzymes to initiate cyclic cleavage of hairpin substrates.
Activatable red/near-infrared aqueous organic phosphorescence probes for improved time-resolved bioimaging.
Natl Sci Rev
February 2025
Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.
Organic red/near-infrared (NIR) room-temperature phosphorescence (RTP) holds significant potential for autofluorescence-free bioimaging and biosensing due to its prolonged persistent luminescence and exceptional penetrability. However, achieving activatable red/NIR organic RTP probes with tunable emission in aqueous solution remains a formidable challenge. Here we report on aqueous organic RTP probes with red/NIR phosphorescence intensity and lifetime amplification.
View Article and Find Full Text PDFTunable Cluster Luminescence and High Quantum Yield in Amine-Modified Maleic Anhydride Polymers.
Langmuir
January 2025
The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China.
Cluster luminescent materials (CLgens) with nonconjugated structures have attracted considerable attention. However, their low quantum yield and limited emission wavelengths, which are confined to the blue-green spectrum, continue to restrict their applicability. In this study, maleic anhydride polymer chains were modified with -tristyrylene-1,2-diamine (TPM-NH), creating a secondary donor-acceptor structure through freely rotatable phenyl groups and amino-anhydride interactions.
View Article and Find Full Text PDFChemiluminescent Probe for Enhanced Visualization of Renal Ischemia-Reperfusion Injury via Pyroglutamate Aminopeptidase-1 Activation.
Anal Chem
January 2025
Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
The absence of an effective imaging tool for diagnosing renal ischemia-reperfusion injury (RIRI) severely delays its treatment, and currently, no definitive clinical interventions are available. Pyroglutamate aminopeptidase-1 (PGP-1), a potential inflammatory cytokine, has shown considerable potential as a biomarker for tracing the inflammatory process in vivo. However, its exact role in the enhanced visualization of RIRI in complex biological systems has yet to be fully established.
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