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A coumarin and 1,8-napthyridine conjugated novel molecular hybrid: Synthesis, DFT insights and unveiling the selective fluorescent sensing of Hg ions with live-cell imaging application.
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
Department of Chemistry, School of Sciences, National Institute of Technology Andhra Pradesh, Tadepalligudem 534101, Andhra Pradesh, India. Electronic address:
Herein, we have used a simple synthetic strategy to access a novel non-sulfur fluorescent molecular probe coumarin and 1,8-napthyridine conjugated probe DNCS. The developed probe has great selectivity and sensitivity for detecting Hg ions. Our photophysical properties evaluation for the synthesized probe with different metal ions (Ba, Al, Ca, Bi, Ce, Cd, Cu, Sr, Co, Fe, Cr, Fe, Mn, Hg, Zn, Pb, Ni, and Sn) unveiled the very selective and sensitive fluorescence sensing behavior with Hg ions in the energy window of near UV and visible light radiation in an organic aqueous solvent mixture (EtOH and water).
View Article and Find Full Text PDFA smartphone-based fluorescent sensing system for simultaneous visual detection of chromium(Ⅲ) and copper(Ⅱ) ions.
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products/Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Colleges Universities Key Laboratory of Optic-electric Chemo/Biosensing and Molecular Recognition, Guangxi Minzu University, Nanning 530006, China.
In this work, we developed a highly accurate and sensitive two-emission fluorescence sensor, integrated with a smartphone, for the rapid detection of Cu and Cr in aqueous solution. This sensor comprised AgInS/ZnS quantum dots (AIS/ZnS QDs) and metal-AIEgen frameworks (MAFs). Upon mixing in a specific ratio, the hybrid system can emit a white light when exposed to a UV lamp (365 nm).
View Article and Find Full Text PDFFacile synthesis of size-tunable L-carnosine-capped silver nanoparticles and their role in metal ion sensing and catalytic degradation of -nitrophenol.
Beilstein J Nanotechnol
December 2024
Nanomaterial Toxicology Laboratory, Drug and Chemical Toxicology Group, Food, Drug and Chemical, Environment and Systems Toxicology (FEST) Divison, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, India.
ʟ-Carnosine is a dipeptide with notable antioxidant, antiglycation, metal chelating, and neuroprotective properties. Despite its many biological roles, applying ʟ-carnosine as a capping agent in nanoparticle synthesis has remained underexplored. This study explores the potential of ʟ-carnosine in synthesizing tunable plasmonic silver nanoparticles (ʟ-car-AgNPs).
View Article and Find Full Text PDFpH-Responsive Persistent Luminescent Nanosystem with Sensitized NIR Imaging and Ratiometric Imaging Modes for Tumor Surgery Navigation.
ACS Appl Mater Interfaces
December 2024
Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.
Owing to autofluorescence-free feature, persistent luminescent (PersL) nanoparticles (PLNPs) become potential materials for tumor surgical navigation. However, it is still challenging to enhance PersL intensity, contrast ratio, and imaging stability so as to meet clinical demand and avoid missed detection of microlesions. Herein, integrating a tumor microenvironment (TME)-responsive strategy, sensitization enhancement, and internal-standard ratiometric method, a dual-mode PersL imaging strategy is proposed: After loading pH-responsive fluorescent molecule Rh-ADM on PLNPs ZnGaO:Cr,Mn (ZGCM-Rh8), the fluorescence resonance energy transfer (FRET) pathways between Cr and Rh-ADM, as well as Mn and Rh-ADM, could sensitize the NIR PersL emitted by Cr and quench the green PersL from Mn at acidic TME, respectively.
View Article and Find Full Text PDFAchieving an Improved NIR Performance of CaScZrGeO:Cr via [Sc-Sc]→[Ca-Zr].
Inorg Chem
December 2024
Department of Physics, Zhejiang Normal University, Jinhua, Zhejiang 321004, China.
High-performance near-infrared (NIR) light sources are highly sought after in advanced spectroscopy techniques, driving the development of NIR phosphor-converted light-emitting diodes (pc-LEDs). Escalating the luminescence intensity and thermal stability of NIR-emitting phosphors, which is a core component of NIR pc-LEDs, is of paramount importance. Herein, chemical unit cosubstitution and cosolvent addition tactics were implemented to simultaneously boost the NIR luminescence performance of the synthesized phosphors.
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