Article
Spectroscopy
Hai-Xia Wang, Chuan-Wan Wei, Xiao-Juan Wang, Heng-Fang Xiang, Xin-Zhi Yang, Gui-Long Wu, Ying-Wu Lin
Summary: Supramolecular hydrogels based on 2-QF have potential applications, showing selective recognition of Zn2+ and forming metallohydrogels. 2-QF exhibits excellent biocompatibility and can penetrate live cells for biomedical imaging.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Applied
Yucun Liu, Ning Li, Yongling Zhang, Yuan Wang
Summary: A sophisticated fluorescent chemosensor, NPDI, was designed and synthesized through a one-step condensation reaction. It exhibited fluorescence enhancement response toward Al3+, beginc accompanied by significant emission color change without interference from other metal ions. The binding stoichiometry and mechanism were confirmed using various techniques.
Article
Spectroscopy
Sneha Ghosh, Shephali Mahato, Tiasha Dutta, Zisan Ahamed, Pritam Ghosh, Partha Roy
Summary: Selective detection of metal ions is crucial for understanding their roles in chemical and biological processes. In this study, we synthesized and characterized two rhodamine-based isomers and investigated their sensing properties towards Al3+. DFT study and cell imaging experiments demonstrated the practicality and high selectivity of these probes.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ananta Hazra, Pritam Ghosh, Partha Roy
Summary: In this study, a rhodamine-based compound (RBO) was reported as a selective fluorescent chemosensor for the detection of Al3+ and Hg2+ ions. It exhibited a high fluorescence enhancement and low detection limits, and could also be used for constructing logic gates.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Physical
Shashanka Shekhar Samanta, Prabhat Kumar Giri, Subhadip Giri, Avijit Ghosh, Ajay Misra
Summary: A phenolphthalein based fluorescent probe, PHPA, with high sensitivity and selectivity towards Zn2+ and Al3+ was synthesized. The binding sites of both sensor complexes (PHPA-Zn2+ & PHPA-Al3+) were confirmed through spectroscopic methods. The probe PHPA was also used to detect intracellular Zn2+ ion in A549 cells. The AIEE properties of PHPA were studied in methanol-water mixtures with high water contents.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Applied
G. Prabakaran, R. Vickram, K. Velmurugan, C. Immanuel David, S. Prince Makarios Paul, Raju Suresh Kumar, Abdulrahman I. Almansour, Karthikeyan Perumal, A. Abiram, J. Prabhu, R. Nandhakumar
Summary: A dimeric quinoline-based Schiff base (DQS) was developed as a probe for the specific detection of Pb(2+) ions using fluorimetry. The binding of DQS with Pb2+ resulted in enhanced fluorescence intensity with a blue shift, attributed to the restriction of C-N rotation, C= N isomerization, and photoinduced electron transfer (PET) mechanisms. Moreover, intramolecular charge transfer (ICT) from an electron-donating morpholine group to a phenylene diamine acceptor linked to the quinoline bridge was responsible for the blue-shifted fluorescence enhancement in the DQS-Pb2+ complex.
Article
Chemistry, Multidisciplinary
Ramanjaneyulu Mala, Dhakshinamurthy Divya, Priyadharshni Vijayan, Mathivanan Narayanasamy, Sathiah Thennarasu
Summary: Density functional theoretical calculations predicted the non-coplanar twisted geometry of two new imidazo[1,2-a]pyridine derivatives, Imp and ImBt, which was experimentally confirmed. These molecules showed aggregation-induced emission (AIE) effect and could potentially be used as turn-on sensors for specific metal ions.
Article
Chemistry, Physical
Onder Alici, Duygu Aydin
Summary: A novel phenolphthalein-derived Schiff base fluorescence probe FF2H has been synthesized and utilized for the fluorescence "turn-on" detection of Al3+ in aceto-nitrile: HEPES system. The probe showed high sensitivity and selectivity towards Al3+ detection, making it a promising tool for metal ion sensing.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Analytical
Attila Csomos, Ervin Kovacs, Miklos Madarasz, Flora Zsofia Fedor, Anna Fulop, Gergely Katona, Balazs Rozsa, Zoltan Mucsi
Summary: A library of fluorescent GFP chromophore based chemosensors (GFZnPs) was prepared for the detection of Zn2+ using two-photon microscopy. These sensors exhibit high selectivity, excellent water solubility, and wide pH-range usability, making them one of the best two-photon probes for Zn2+.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Sudhanshu Naithani, Nidhi Goswami, Sain Singh, Vikas Yadav, Sanjay Kumar, Pramod Kumar, Amit Kumar, Tapas Goswami, Sushil Kumar
Summary: An efficient dual-functional naphthalene-derived Schiff base (NpSb) probe has been synthesized and evaluated for its fluorescence and chromogenic response towards metal ions. The NpSb probe exhibited selective recognition of Al3+ and Zn2+ ions with low detection limits and high binding constants.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Organic
Javeed Ahmad Tali, Ravi Shankar
Summary: Here, we report an unprecedented protocol using ruthenium-catalyzed annulation for the synthesis of 6H-chromeno[4 ',3 ':4,5]imidazo[1,2-a]pyridin-6-one, and a new method for intramolecular chelation-assisted C-H activation to produce functionalized 2-(3-formylimidazo[1,2-a]pyridin-2-yl)phenyl acetate. Furthermore, a one-pot approach using ruthenium catalysis and formic acid has been developed for the gram-scale synthesis of bis(2-phenylimidazo[1,2-a]pyridin-3yl)methane (BIP) and the late-stage functionalization of zolimidine, a marketed drug, with good yield.
Article
Chemistry, Physical
Rubi Behura, Pragyan P. Dash, Patitapaban Mohanty, Sunita Behera, Monalisa Mohanty, Rupam Dinda, Santosh Kumar Behera, Aruna K. Barick, Bigyan R. Jali
Summary: Luminescent chemosensors based on Schiff bases have been extensively studied due to their easy synthesis, enriched photophysical properties, and potential applications in biology and materials science. In this study, a dinitrophenyl-based Schiff base molecular probe (L) was synthesized and characterized for its selective detection of Zn2+. The probe exhibited weak emission in a solvent mixture, but fluorescence was enhanced in the presence of Zn2+, indicating its selective sensing ability.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Bhriguram Das, Malay Dolai, Anamika Dhara, Avijit Ghosh, Subhabrata Mabhai, Ajay Misra, Satyajit Dey, Atanu Jana
Summary: By utilizing a 2-naphthol-based fluorescent probe H2L, the detection and discrimination of Al3+ and Zn2+ can be achieved through solvent regulation. The probe exhibits excellent selectivity and swift sensitivity towards Al3+ and Zn2+, with detection limits of 9.78 and 3.65 mu M respectively.
JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Chemistry, Physical
Tianyuan Zhong, Fuxing Sun, Zhuo Zhang, Guang Wang
Summary: A fluorescent chemosensor (QCT@ZIF-8) based on ZIF-8 and quercetin was designed and synthesized. QCT@ZIF-8 showed highly selective turn-on fluorescence response towards Al3+ in ethanol with a detection limit as low as 0.58 μM.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Spectroscopy
Raquel Mazolli da Fiuza, Juliana Padilha, Luis Maqueira, Ricardo Q. Aucelio, Jones Limberger
Summary: Two fluorescent D-A-D styryl-benzothiadiazole fluorophores with different structures have been synthesized using Heck reactions, and the fluorescence intensity shows a good linear relationship with ethanol content.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
