Analytical and Bioanalytical Chemistry, Journal Year: 2024, Volume and Issue: 416(17), P. 3945 - 3962
Published: June 18, 2024
Language: Английский
Analytical and Bioanalytical Chemistry, Journal Year: 2024, Volume and Issue: 416(17), P. 3945 - 3962
Published: June 18, 2024
Language: Английский
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Jan. 24, 2024
Inorganic pyrophosphate is a key molecule in many biological processes from DNA synthesis to cell metabolism. Here we introduce sp$^{3}$-functionalized (6,5) single-walled carbon nanotubes (SWNTs) with red-shifted defect emission as near-infrared luminescent probes for the optical detection and quantification of inorganic pyrophosphate. The sensing scheme based on immobilization Cu$^{2+}$ ions SWNT surface promoted by coordination covalently attached aryl alkyne groups triazole complex. presence causes fluorescence quenching via photoinduced electron transfer, which reversed copper-complexing analytes such differences response sp$^{3}$-defect pristine nanotube enables reproducible ratiometric measurements wide concentration window. Biocompatible, phospholipid-polyethylene glycol-coated SWNTs sp$^{3}$ defects are employed lysate monitoring progress polymerase chain reaction. This robust probe may serve starting point rational design nanotube-based biosensors.
Language: Английский
Citations
19Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 20, 2025
Pyrophosphate (PPi) and nucleic acid amplification play a critical role in medical diagnostics, making the development of precise nanosensors essential. Lanthanide metal-organic frameworks (Ln-MOFs) are increasingly recognized for their potential advanced luminescent biosensing applications. However, research on customized controllable responses Ln-MOF is still lacking, which molecular-level modular design. In this work, we introduce ligand engineering strategy to regulate coordination-induced antenna effect emission Ln-MOFs, optimizing pyrophosphate sensing from fluorescence turn-off turn-on modes. By tuning coordination environment through programming, discovered "near compensation" effect, allowing transitions between aggregation-induced quenching (AIE/AIQ). This reversible response was supported by density functional theory calculations. Using Eu3+/Tb3+ dual-emission designed with 2,6-pyridinedicarboxylic as optimized ligand, developed self-correcting PPi nanosensor detection limit 0.2 μM. Moreover, system enabled ultrasensitive detection, achieving (LOD) low 1 fM, applications DNA pyrosequencing, qPCR, epigenetic modification (5-formylcytosine) analysis. These findings shed light structural photophysical factors controlling luminescence, offering promising platform highly accurate sensitive biomedical diagnostics.
Language: Английский
Citations
1Sensors and Actuators B Chemical, Journal Year: 2021, Volume and Issue: 337, P. 129785 - 129785
Published: March 18, 2021
Language: Английский
Citations
47Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 466, P. 214583 - 214583
Published: May 13, 2022
Language: Английский
Citations
30Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2024, Volume and Issue: 309, P. 123837 - 123837
Published: Jan. 2, 2024
Language: Английский
Citations
7Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2023, Volume and Issue: 441, P. 114726 - 114726
Published: March 28, 2023
Language: Английский
Citations
14Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 400, P. 124507 - 124507
Published: March 17, 2024
Language: Английский
Citations
6Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 136148 - 136148
Published: Oct. 11, 2024
Language: Английский
Citations
6Sensors and Actuators B Chemical, Journal Year: 2022, Volume and Issue: 365, P. 131949 - 131949
Published: April 26, 2022
Language: Английский
Citations
21Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1308, P. 138022 - 138022
Published: March 11, 2024
Language: Английский
Citations
4