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MAO-B-triggered reaction for an optical triple-signal assay and AND logic gate application based on PEI-functionalized silver nanoparticles.
Mikrochim Acta
January 2025
School of Pharmacy, Lanzhou University, Lanzhou, 730000, P. R. China.
A novel analytical method was designed and developed that exhibited ultraviolet-visible (UV-Vis), fluorescence (FL), and resonance Rayleigh scattering (RRS) signals for straightforward and comprehensive determination of monoamine oxidase B (MAO-B) using polyethylenimine-functionalized silver nanoparticles (PEI-Ag NPs). Through a facile one-step experiment, and NaOH assisted, in an aqueous solution of 100 ℃ for 40 min PEI reacted with AgNO to generate PEI-Ag NPs with a yellow color and weak blue fluorescence. Interestingly, phenylacetaldehyde (PAA), a specific product of MAO-B, causes significant enhancement of the three optical signals of UV-Vis, FL, and RRS.
View Article and Find Full Text PDFLanthanide ion-based metal-organic framework as an effective tri-mode nanoprobe for alcoholic content detection.
Mikrochim Acta
January 2025
School of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, China.
A lanthanide ion-based metal-organic framework (Eu-TATAB nanorods) was designed and synthesized as an effective tri-mode nanoprobe for sensitive and portable detection of ethanol content in a water-ethanol mixture. The assay was based on the responsive properties of Eu-TATAB nanorods to ethanol stimulus and their adaptive encapsulation capability towards optically active lanthanides. With the addition of ethanol to the Eu-TATAB nanorods, the structure was destroyed, resulting in a decrease in luminescence, electrochemiluminescence, and ultraviolet-visible spectrophotometric signals by perturbing energy transfer in the Eu-TATAB nanorods.
View Article and Find Full Text PDFShear-Stress Initiates Signal Two of NLRP3 Inflammasome Activation in LPS-Primed Macrophages through Piezo1.
ACS Appl Mater Interfaces
January 2025
Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States.
The innate immune system is tightly regulated by a complex network of chemical signals triggered by pathogens, cellular damage, and environmental stimuli. While it is well-established that changes in the extracellular environment can significantly influence the immune response to pathogens and damage-associated molecules, there remains a limited understanding of how changes in environmental stimuli specifically impact the activation of the NLRP3 inflammasome, a key component of innate immunity. Here, we demonstrated how shear stress can act as Signal 2 in the NLRP3 inflammasome activation pathway by treating LPS-primed immortalized bone marrow-derived macrophages (iBMDMs) with several physiologically relevant magnitudes of shear stress to induce inflammasome activation.
View Article and Find Full Text PDFAn Activatable Chemiluminescent Self-Reporting Sulfur Dioxide Donor for Inflammatory Response and Regulation of Gaseous Vasodilation.
ACS Sens
January 2025
State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian 116024, China.
Sulfur dioxide (SO), being a novel gaseous signaling molecule, exhibits significant potential for application in the field of cardiovascular diseases. SO donors serve as crucial tools for the transportation and regulation of SO in vivo, facilitating the investigation of physiological roles associated with this molecule. However, the current therapeutic SO donors lack the capability to monitor the real-time release of SO, thereby hindering accurate assessment of their therapeutic efficacy and target localization.
View Article and Find Full Text PDFDanshensu sodium salt alleviates muscle atrophy via CaMKII-PGC1α-FoxO3a signaling pathway in D-galactose-induced models.
FASEB J
January 2025
Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea.
Sarcopenia is an age-related muscle atrophy syndrome characterized by the loss of muscle strength and mass. Although many agents have been used to treat sarcopenia, there are no successful treatments to date. In this study, we identified Danshensu sodium salt (DSS) as a substantial suppressive agent of muscle atrophy.
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