Article
Biochemistry & Molecular Biology
Matteo Savastano, Francesca Boscaro, Antonio Bianchi
Summary: This study explored the coordination properties of DFO with various metal ions in solution using a chromophoric DFO derivative. The results validated the formation of 1:1, 2:2, and 2:3 metal-to-ligand complexes between DFO and Zr4+. Convergences and conflicts with other studies were addressed.
Article
Chemistry, Inorganic & Nuclear
Olga Rudnitskaya, Tatiana A. Tereshina, Ekaterina Dobrokhotova, Ekaterina K. Kultyshkina, Ilya A. Yakushev, Natalia A. Chumakova, Alexander Kokorin, Yan Zubavichus, Victor N. Khrustalev
Summary: A novel iridium complex was synthesized and characterized thoroughly. Reduction of iridium and incorporation of DMSO molecules were observed during solution aging. Other related compounds were also identified.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Ekaterina V. Matazova, Bayirta V. Egorova, Anastasia D. Zubenko, Anna V. Pashanova, Artem A. Mitrofanov, Olga A. Fedorova, Stanislav V. Ermolaev, Aleksandr N. Vasiliev, Stepan N. Kalmykov
Summary: A comparative study between the complexes of H(4)DOTA and H(4)BATA with Ac3+ was conducted, and the stability constants of Ac3+ and La3+ complexes were determined, showing the exceptional thermodynamic stability of H(4)BATA complexes. DFT calculations revealed the inclusion of La3+ and Ac3+ cations in the macrocyclic cavity. In addition, the stability of the [AcBATA](-) complex was demonstrated in blood serum and normal mice, making H(4)BATA a potential candidate for radiopharmaceuticals.
INORGANIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Antonio Gigliuto, Rosalia Maria Cigala, Anna Irto, Maria Rosa Felice, Alberto Pettignano, Demetrio Milea, Stefano Materazzi, Concetta De Stefano, Francesco Crea
Summary: The study investigated the interactions of dopamine with methylmercury(II), magnesium(II), calcium(II), and tin(II) at different ionic strengths and temperatures, and evaluated the sequestering ability of dopamine towards these cations. The results showed that entropy is the driving force of the process, and the stoichiometry of the precipitates formed depends on the metal:ligand ratios and concentrations of the starting solutions.
Article
Chemistry, Analytical
Kanji Miyabe, Ayaka Arai, Mana Ishizuka
Summary: The moment analysis method, based on HPLC data, successfully determined the association equilibrium constant and rate constants of chemical reactions without the need for immobilization or fluorescence labeling. The method's advantages lie in its ability to accurately determine these values and its broad applicability to studying intermolecular interactions in different systems.
ANALYTICAL CHEMISTRY
(2021)
Article
Geochemistry & Geophysics
Nikolay D. Trofimov, Boris R. Tagirov, Nikolay N. Akinfiev, Vladimir L. Reukov, Maximilian S. Nickolsky, Irina Yu. Nikolaeva, Maria E. Tarnopolskaya, Andrey A. Afanasyev
Summary: The important Cu reserves in porphyry deposits were formed by hydrothermal fluids containing Cl- and S-, which transported and deposited metals within the magmatic-hydrothermal ore systems. The solubility of chalcocite Cu2S in these fluids was determined at different temperatures and pressures, and the results showed that Cu-Cl complexes dominate over mixed CuHS-Cl complexes. Thermodynamic properties of CuHS(aq), Cu(HS)(2)(-), CuCl(aq), and CuCl2- were predicted using the HKF (Helgeson-Kirkham-Flowers) model equation of state. The AD (Akinfiev and Diamond) equation of state was also derived for CuCl(aq) in low-density fluids. The obtained data provide insights into the behavior of copper in ore-forming fluids.
Article
Chemistry, Multidisciplinary
Luana Malacaria, Giuseppina Anna Corrente, Emilia Furia
Summary: In this study, the complexation of HCCA with neodymium(III) and dioxouranium(VI) was evaluated, and overall stability constants of the resulting complexes were determined. The ligand-to-metal concentration ratio played a key role in determining the formation of different complexes with varying degrees of deprotonation. Speciation profiles obtained from potentiometric titrations showed the formation of various complexes with different ligand-to-metal ratios.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Organic
Brian Koronkiewicz, Elvira R. Sayfutyarova, Scott C. Coste, Brandon Q. Mercado, Sharon Hammes-Schiffer, James M. Mayer
Summary: Experimental and theoretical investigations have shown that fluorene C-H bonds can be activated through a mechanism known as multisite proton-coupled electron transfer (MS-PCET). Intentional modulation of the donor-acceptor distance was studied by introducing a 3-methyl group, causing steric compression but also elongating the relevant C center dot center dot center dot O- proton donor-acceptor distance. The rate enhancement observed in this study was attributed to effects on thermochemistry and kinetic barrier rather than the compression of the donor-acceptor distance.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Antonio Gigliuto, Rosalia Maria Cigala, Anna Irto, Maria Rosa Felice, Alberto Pettignano, Concetta De Stefano, Francesco Crea
Summary: The interactions of dopamine with cadmium, copper, and uranyl were studied at different ionic strengths and temperatures, resulting in different speciation models. The studies showed that dopamine has different sequestering abilities towards cadmium, copper, and uranyl ions, with uranyl having the highest sequestering ability followed by copper and then cadmium.
Article
Chemistry, Physical
Ji Woong Chang, Antonios Armaou, Robert M. Rioux
Summary: The study compared the continuous injection approach (CIA) with the traditional incremental injection approach (IIA) for evaluating three common ligand-receptor binding models, demonstrating advantages of CIA including reduced experimental time and automation. The results showed greater confidence in estimating thermodynamic parameters, along with significant reductions in experimental time and titrating reagent usage compared to IIA.
JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Article
Chemistry, Multidisciplinary
Yun Liu, Fred C. Parks, Edward G. Sheetz, Chun-Hsing Chen, Amar H. Flood
Summary: The research has created a folded capsule that can maintain high affinity in high-polarity solvents, inspired by the principle of isolating anion binding sites by proteins in aqueous environments. This new prototype has important research significance and application prospects.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Fatima Zahra Hamamdia, Hanene Messiad, Karima Belguidoum, Nadjet Lemouari, Habiba Amira-Guebailia
Summary: In this study, molecular charge-transfer complexes of the donor rutin with pi-acceptors tetracyanoethylene (TCNE) and 2,3-dichloro-5,6-dicyano-pi-benzoquinone (DDQ) were investigated. The formed complexes exhibited well-resolved charge-transfer bands and showed high stability.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Inorganic & Nuclear
Yuliya Toporivska, Andrzej Mular, Karolina Piasta, Malgorzata Ostrowska, Davide Illuminati, Andrea Baldi, Valentina Albanese, Salvatore Pacifico, Igor O. Fritsky, Maurizio Remelli, Remo Guerrini, Elzbieta Gumienna-Kontecka
Summary: Increasing attention has been focused on Zr-89(IV) and Ga-68(III) radionuclides due to their favorable decay characteristics for PET. This paper presents a deep investigation on Ga(III) and Zr(IV) complexes with a series of ligands. The design and synthesis of two cyclic complexing agents with hydroxamate chelating groups are described, and the complex stability of Ga(III) and Zr(IV) complexes is examined. The study broadens the selection of available chelators for Ga-68(III) and Zr-89(IV) and provides new insights into coordination chemistry and thermodynamics of Ga(III) and Zr(IV).
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
David King, Tatjana Sumanovac, Steven Murkli, Peter R. Schreiner, Marina Sekutor, Lyle Isaacs
Summary: We synthesized quaternary (di)cationic triamantane derivatives G1 and G3 by permethylating the corresponding primary ammonium ions G2 and G4. The complexation behaviors of G1-G4 with CB[7] and CB[8] were examined using H-1 NMR spectroscopy. CB[8] fully encapsulated G1-G4 while CB[7] formed inclusion complexes with G1, G2, and G4 but could not fully encapsulate the central hydrophobic core of G3. The geometries of the CB[n]-guest complexes were determined by analyzing complexation-induced changes in chemical shifts and confirmed using molecular modeling.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
R. A. Sadykov, G. D. Safina, S. L. Khursan, A. Kutchin
Summary: The temperature and concentration dependence of the chemical shift of phenolic hydroxyl proton in 2,6-diisobornyl-4-methylphenol and 2,6-di-tert-butyl-4-methylphenol were studied in different solvents using H-1 NMR spectroscopy. The equilibrium constants and thermodynamic parameters of the hydrogen-bonded phenol-solvent complexes were determined. The results revealed that the K values of 2,6-diisobornyl-4-methylphenol were higher than those of 2,6-di-tert-butyl-4-methylphenol in all solvents. The steric hindrances caused by the ortho-substituents played a key role in the complexation process.
RUSSIAN CHEMICAL BULLETIN
(2022)
Article
Chemistry, Physical
Seema Bagchi, Sujit Chandra Lahiri
JOURNAL OF SOLUTION CHEMISTRY
(2015)
Article
Chemistry, Physical
Seema Bagchi Chattaraj, Ashutosh Chakrabortty, Shiba Prasad Sharma, Sujit Chandra Lahiri
JOURNAL OF SOLUTION CHEMISTRY
(2015)
Article
Spectroscopy
Asim Sagar Datta, Seema Bagchi (Chattaraj), Ashutosh Chakrabortty, Sujit Chandra Lahiri
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2015)
Article
Chemistry, Physical
Ranjana Bhattacharyya, Sujit Chandra Lahiri
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2017)
Article
Medicine, Legal
Ashutosh Chakrabortty, Seema Bagchi (Chattaraj), Sujit Chandra Lahiri
AUSTRALIAN JOURNAL OF FORENSIC SCIENCES
(2015)
Article
Medicine, Legal
Kakali Sharma, Shiba P. Sharma, Sujit C. Lahiri
JOURNAL OF FORENSIC SCIENCES
(2013)
Article
Chemistry, Physical
Dilip Kumar Kuila, Sujit Chandra Lahiri
JOURNAL OF SOLUTION CHEMISTRY
(2012)
Article
Spectroscopy
K. Sharma, S. P. Sharma, S. C. Lahiri
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2012)
Article
Chemistry, Physical
Sujit Chandra Lahiri, Bishnu Pada Dey, Kakali Sharma
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2014)
Article
Public, Environmental & Occupational Health
A. S. Datta, A. Chakrabortty, S. S. De Dalal, S. C. Lahiri
Article
Chemistry, Multidisciplinary
Ashutosh Chakrabortty, Sujit Chandra Lahiri
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2013)
Article
Chemistry, Multidisciplinary
K. Sharma, S. C. Lahiri
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2012)
Article
Chemistry, Multidisciplinary
Ashutosh Chakrabortty, Seema Bagchi (Chattoraj), Sujit Chandra Lahiri
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2012)
Article
Chemistry, Multidisciplinary
Ashutosh Chakrabortty, Seema Bagchi (Chattoraj), Sujit Chandra Lahiri
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2012)
Article
Chemistry, Multidisciplinary
Nilanjan Chakraborty, Jaydev Jana, G. M. Sarkar, S. C. Lahiri
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2012)
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Leo Mandic, Ivan Ljubic, Iva Dzeba
Summary: In this study, a combined experimental and computational approach was used to investigate the photoexcitation and photodegradation mechanisms of Doxazosin (DOX). The results provide valuable insights into the primary events following the photoexcitation of DOX and its potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiufeng Wang, Yao Jin, Wenhui Ai, Siqi Wang, Zhiqing Zhang, Ting Zhou, Fang Wang, Guodong Zhang
Summary: This study successfully synthesized near infrared fluorescence Ag2S quantum dots (QDs) and developed a dual-mode sensor for sulfide anion using the excellent oxidase-like characteristics of manganese dioxide (MnO2) nanosheets. The sensor showed a wider detection range, higher sensitivity, and shorter reaction time, making it suitable for highly selective detection of sulfide in different concentration ranges.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yafei Li, Yanming Ma, Chuantao Zheng, Di Yu, Lien Hu, Shuo Yang, Fang Song, Yadan Li, Shuanghai Liu, Zhanrui Zhang, Yu Zhang, Yiding Wang, Frank K. Tittel
Summary: To effectively monitor gas explosion and coal spontaneous combustion in coal mine, an intrinsically safe and explosion-proof dual-gas sensor system was developed for methane (CH4) and carbon monoxide (CO) measurement. The system achieved different measurement ranges using laser scanning and gas cells, and improved stability and accuracy through gas pre-treatment and temperature compensation algorithm.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Pei-Rong Chen, Li-Kang Chu
Summary: In this study, the hydrates of glyoxal were investigated using infrared absorption spectrometry. The results showed that at low concentrations, glyoxal mainly exists as monomeric dihydrate. These findings provide suitable detection windows for further research on the roles of glyoxal and its hydrates in atmospheric and aerosol chemistry, as well as the relevant reaction kinetics.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Nichole O'Neill, Thamires A. Lima, Fabio Furlan Ferreira, Nicolas J. Alvarez, Reinhard Schweitzer-Stenner
Summary: This study determines the main fibril axis of GHG gel-forming fibrils using various techniques and compares the results with simulated data. The analysis suggests that the hydrophobic xz-surfaces of GHG fibrils could be a good target for the adsorption of hydrophobic drugs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengyuan Liu, Hanchuang Zhu, Yikun Fang, Caiyun Liu, Xinke Li, Xiaohui Zhang, Lixue Ma, Kun Wang, Miaohui Yu, Wenlong Sheng, Baocun Zhu
Summary: ABHS is an efficient fluorescent probe that can accurately and sensitively detect Al3+ with strong resistance to interference. It also demonstrates excellent detection and imaging capabilities in complex real samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Anindita Bhatta, Jahnabi Upadhyaya, Dipak Chamlagai, Lincoln Dkhar, Pynskhemborlang T. Phanrang, Mohan Rao Kollipara, Sivaprasad Mitra
Summary: Derivatives of thiazole-pyrazole fused benzo-coumarin compounds were synthesized and their photophysical properties were investigated. The synthesized coumarin compounds showed potential as therapeutic agents for Alzheimer's disease, inhibiting acetylcholinesterase activity. The presence of human serum albumin was found to affect the inhibition activity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yongwei Duan, Quancheng Liu, Yiju Zhu, Qi Zhang, Xiaohui Duan, Hu Deng, Liping Shang
Summary: In this study, the phase transition of CL-20 was observed using terahertz spectroscopy, and quantum chemical calculations were employed to analyze the vibrations. The results indicated changes in the vibrations of CL-20 before and after phase transition.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yuefeng Gao, Sai Xu, Baojiu Chen
Summary: This study synthesized Cs2NaInCl6 nanocrystals co-doped with Sb3+ and Tb3+ ions as probes for copper ions detection in lubricating oil. The introduction of Sb3+ effectively reduced the band gap of the host material and enabled energy transfer pathway for Tb3+ emission. The doped Tb3+ ions resulted in the suppression of emission due to electron transfer. The Cs2NaInCl6: 2.5 %Sb3+, 40 %Tb3+ NCs exhibited superior sensitivity and selectivity for copper ions detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu Liu, Yue Zhang, Changyao Liu, Ce Wang, Baocai Xu, Li Zhao
Summary: A highly sensitive detection platform for heparin was developed using a cationic fluorescent dye (cresyl violet acetate) as a fluorescence probe. The platform demonstrated high selectivity towards heparin and achieved detection in both HEPES solution and serum.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lopamudra Roy, Nivedita Pan, Susmita Mondal, Ria Ghosh, Md. Nur Hasan, Neha Bhattacharyya, Soumendra Singh, Kallol Bhattacharyya, Arpita Chattopadhyay, Samir Kumar Pal
Summary: The study focuses on the interaction between reactive oxygen species (ROS) and a spectroscopic probe called Rose Bengal (RB), encapsulated in nanoscopic sodium dodecyl sulphate (SDS) micelles and entrapped in microscopic nylon 66 solid matrix. The research demonstrates efficient interaction between ROS and RB-SDS, and investigates the mechanism of hydroxyl radicals generation. Based on these findings, a prototype device utilizing RB embedded in a nylon thin film for quantification of ROS in extracellular fluids and food materials was developed.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiaosong Sun, Qihao Cui, Wenyue Dong, Qian Duan, Teng Fei
Summary: Conjugated porous polymers (CPPs) are promising sensing materials and their application in aqueous media is limited. In this study, we synthesized CPPs with porous structure and prepared nanoparticles, enabling efficient photoluminescence sensing of nitroaromatic explosives in aqueous phase.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maria Cristina Caggiani, Germana Barone, Paolo Mazzoleni
Summary: Raman spectroscopy is commonly used for studying glassy materials in cultural heritage, but it is more difficult to interpret the spectra and apply the technique with portable instruments. In contrast, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) can be used in archaeometric investigations as it is portable and non-invasive. However, there is limited application of this technique to historical glasses. This exploratory work demonstrates the potential of DRIFTS, in combination with portable X-ray Fluorescence (pXRF) and EDS microanalyses, for studying the composition and alteration of glass samples in cultural heritage.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)