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Near-infrared (NIR) chemiluminescent probes offer significant advantages for cancer imaging due to their high signal-to-noise ratios and deep tissue penetration. However, the integration of chemiluminescence (CL) units and aggregation-induced emission (AIE) components to enhance emission wavelength and combine diagnostics with therapeutics remains underexplored. Here, we present an innovative probe, H-C, formed by conjugating 10-hydroxycamptothecin (HCPT)--a natural product with anticancer activity and AIE properties--with a chemiluminescent unit. This design enhances emission through CL resonance energy transfer (CRET) efficiency, red-shifting the emission wavelength via charge transfer (CT) mechanism, and endows the chemiluminescent probe with AIE and chemotherapeutic properties. In vivo experiments demonstrate that the probe H-C not only monitors tumor growth in real-time but also effectively inhibits the proliferation and migration of cancer cells. This all-in-one strategy offers a pathway to achieve precisely targeted diagnosis and treatment of minimal residual disease after initial surgery or chemotherapy.
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http://dx.doi.org/10.1021/acs.jmedchem.5c01521 | DOI Listing |
Chemistry
September 2025
International School for Optoelectronic Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China.
Alzheimer's disease (AD) is a neurodegenerative disease characterized by β-amyloid (Aβ) deposition, imposing significant social and economic burdens globally. Despite extensive efforts have been devoted to developing fluorescent probes for Aβ imaging, further improving the luminescent efficiency of prevailing probes still remains a significant challenge. Herein, we investigated the inner mechanism of constructing high-efficient Aβ probes via a structural cyclization strategy.
View Article and Find Full Text PDFAnal Chem
September 2025
Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China.
Electrogenerated chemiluminescence (ECL) methods have been widely used in clinical diagnosis. Although ECL peptide-based biosensors continue to grow with good sensitivity and signal flexibility, little emphasis has been placed on the effect of the peptide sequence on ECL sensitivity. We herein studied the nuanced effects of different peptide sequences on the analytical performance of ECL peptide-based biosensors for matrix metalloproteinase 2 (MMP-2) assay, in which [(pbz)Ir(DMSO)Cl] (pbz = 3-(2-pyridyl)benzoic acid) was used as the ECL emitter while a specific peptide was used as the molecular recognition element.
View Article and Find Full Text PDFLuminescence
September 2025
Beijing Key Laboratory of Energy Conversion and Storage Materials, Beijing, China.
A novel aggregation-induced emission (AIE) system with superior performance was successfully developed through local chemical modification from thiophene to thiophene sulfone. This approach, leveraging easily accessible tetraphenylthiophene precursors, dramatically enhances the photophysical properties in a simple oxidation step. Notably, the representative 2,3,4,5-tetraphenylthiophene sulfone (3c) demonstrates remarkable solid-state emission characteristics with a fluorescence quantum yield of 72% and an AIE factor of 240, substantially outperforming its thiophene analog.
View Article and Find Full Text PDFJ Mater Chem B
September 2025
State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China.
Adenosine triphosphate (ATP) is a critical biomolecule in cellular energy metabolism, with abnormal levels in the bloodstream linked to pathological conditions such as ischemia, cancer, and inflammatory disorders. Accurate and real-time detection of ATP is essential for early diagnosis and disease monitoring. However, conventional biochemical assays and other techniques suffer from limitations, including invasive sample collection, time-consuming procedures, and the inability to provide dynamic, monitoring.
View Article and Find Full Text PDFAnal Chim Acta
November 2025
Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, 10000, Viet Nam. Electronic address:
Background: Recent advancements in cancer therapeutics have catalyzed the development of noninvasive treatment modalities, including the utilization of fluorescent chemotherapeutic agents. These agents offer dual functionality, enabling targeted drug delivery, real-time tumor imaging, and personalized therapy monitoring. Such capabilities are instrumental in the progression toward more precise and effective cancer interventions.
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