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We report the synthesis of new chemical probes (1a,b, 2a-c, 3a-c) based on the structure of the main endocannabinoids for their use in biological systems directly or via click chemistry. As proof of concept, 2-arachidonyl glyceryl ether based biotinylated 3b enables direct visualization of CB(1) receptor in cells. These results represent the starting point for the development of advanced small molecule chemical probes able to generate valuable information about the cannabinoid receptors.
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http://dx.doi.org/10.1021/jm2004392 | DOI Listing |
Small
September 2025
Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, 76131, Karlsruhe, Germany.
Recently, metal-organic frameworks (MOFs) have shown high potential in the field of sensing. However, fluorescent-based detection with MOFs in solution needs complex pre-treatments and has stability issues, complicating measurements and handling for sensing applications. Here, an easy-to-handle and low-cost strategy is introduced to convert MOF-based sensing from solution to surface using scanning probe lithography.
View Article and Find Full Text PDFPhys Chem Chem Phys
September 2025
School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A Raja S C Mullick Road, Jadavpur, Kolkata 700032, India.
This work presents a gas-phase experimental study on the reduction of NO (nitrogen dioxide) to HONO (nitrous acid) by two atmospherically significant volatile organic compounds (VOCs), namely, glycolaldehyde (Gla) and hydroxyacetone (HAc), under a simulated tropospheric condition. FTIR spectroscopic probing reveals that HONO is the only gaseous reduced product of NO in each reaction. The measured data indicate that the reactions in both cases occur in a 2 : 1 stoichiometry with respect to NO and Gla/HAc.
View Article and Find Full Text PDFSmall
September 2025
College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014, P. R. China.
The functionality of covalent organic frameworks (COFs) is usually highly related to their morphologies. Among various morphologies, the hollow-structured COFs have recently attracted intense attention due to their unique properties. Herein, the synthesis of hollow structured COFs are first reported with the chiral internal sites via combining the chiral templating method with the acid etching approach.
View Article and Find Full Text PDFACS Nano
September 2025
State Key Laboratory of Chemo and Biosensing, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
Optical imaging offers high sensitivity and specificity for noninvasive cancer detection, but conventional techniques suffer from limited probe accumulation, tissue autofluorescence, and poor depth resolution. Afterglow luminescence overcomes autofluorescence by emitting persistent light after excitation, yet its utility in vivo remains hindered by weak tumor enrichment and two-dimensional readouts lacking spatial context. Here, we report luminescent-magnetic nanoparticles (LM-NPs) coencapsulating luminescent trianthracene (TA) molecules and iron oxide cores within the amphiphilic polymer pluronic-F127.
View Article and Find Full Text PDFBeilstein J Nanotechnol
August 2025
Nanotechnology Lab, Research Laboratories of Saigon Hi-Tech Park, Lot I3, N2 Street, Tang Nhon Phu Ward, Ho Chi Minh City 70000, Vietnam.
Silver nanoprisms (AgNPrs) are promising candidates for surface-enhanced Raman scattering (SERS) due to their strong localized surface plasmon resonance and sharp tip geometry. In this study, AgNPrs were synthesized through a photochemical method by irradiating spherical silver nanoparticle seeds with 10 W green light-emitting diodes (LEDs; 520 ± 20 nm) for various periods of time up to 72 h. The growth mechanism was investigated through ultraviolet-visible spectroscopy, field-emission scanning electron microscopy, X-ray diffraction, and transmission electron microscopy analyses, confirming the gradual transformation of spherical seeds into AgNPrs.
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