Article
Spectroscopy
Liangyu He, Qi Li, Yaqing Zhang, Kun Huang, Bingxin Du, Lijuan Liang
Summary: A naphthalimide functionalized fluoran dye NAF has been prepared, which exhibits a red-shift in emission at 550 nm in a water-CH3CN mixture due to aggregating induced emission (AIE) effect. NAF can function as a selective and sensitive sensor for Hg2+ ions by displaying a ratiometric fluorescence signal change and visible color change. It shows fast response time, wide pH range, and low detection limit, making it suitable for ratiometric imaging of Hg2+ ions in living HeLa cells.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Biochemistry & Molecular Biology
Kristina Prsir, Mislav Matic, Marlena Grbic, Gerhard J. Mohr, Svjetlana Kristafor, Ivana Murkovic Steinberg
Summary: Novel 1,8-naphthalimide-based fluorescent probes NI-1 and NI-2 were designed and screened for detection of heavy metal ions. NI-1 and NI-2 exhibited pH sensitivity and fluorescence intensity change in the presence of Cu2+ and Hg2+ ions. NI-1 could be used for quantification of Cu2+ ions in sub-micromolar quantities, while NI-2 showed remarkable selectivity for Hg2+ ions.
Article
Chemistry, Multidisciplinary
Chenggong Xu, Tian Wu, Lizheng Duan, Yanmei Zhou
Summary: By installing a free-rotating benzene ring to suppress intermolecular pi-pi stacking effect, a naphthalimide-derived hypochlorite fluorescent probe with aggregation-caused quenching effect was successfully transformed into Probe B possessing typical aggregation-induced emission characteristics. Probe B showed good selectivity and a low detection limit, with a significant ratiometric fluorescence color change upon addition of ClO-.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Lin Zhang, Xinyue Jiao, Huijuan Zhang, Suyan He, Xinjian Cheng
Summary: Fluorescent probes based on chitosan were synthesized and investigated for their good selectivity and sensitivity to heavy metal ions. These probes also showed strong adsorption capacity for mercury and ferrous iron ions. This study provides a potential approach for the detection and removal of Hg+/Hg2+ and Fe2+ in heavy metal polluted water.
Article
Chemistry, Multidisciplinary
Aadil A. A. Ahangar, Ishtiyaq Ahmad, Aijaz A. A. Dar
Summary: This study presents three halogen-functionalized anils and investigates the influence of interhalogen bonds on crystal packing. Hirshfeld analyses are conducted to understand the role of intermolecular interactions and the formation of sigma-holes. The AIEgens exhibit interesting emission turn-on upon aggregation in the solution phase and have been utilized for sensing nitro compounds.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Anna Bogucka-Kocka, Przemyslaw Kolodziej, Anna Makuch-Kocka, Daria Rozycka, Sebastian Rykowski, Jan Nekvinda, Bohumir Gruner, Agnieszka B. Olejniczak
Summary: This study demonstrates the activity of a series of 1,8-naphthalimide-carborane/metallacarborane conjugates against Rhabditis sp. The conjugates with cobaltacarborane showed high activity compared to other carborane conjugates.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Mujthaba A. Aatif, S. K. Ashok Kumar
Summary: The newly designed quinoline acrylonitrile probe L exhibits selective colorimetric response towards AsO2- and turn-on emission fluorescent with CN-, forming 1:1 complex with both ions. It can work within a specific pH range, with high sensitivity towards AsO2- and CN-.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Spectroscopy
Fangyun Xin, Jiwei Zhao, Xichen Wang, Haixu Wang, Hong Wang, Mingming Xing, Yao Fu, Yong Tian, Ying Tian
Summary: A simple naphthalimide fluorophore NAP-H2O was designed and synthesized, which exhibited robust green fluorescence in water due to aggregation induced emission (AIE) mechanism. The fluorophore showed good linear relationships between fluorescence intensities at the green emission band and the water content in various organic solvents, enabling quantitative detection of water at trace levels. Furthermore, the probe demonstrated fast response time and good photostability, and it was successfully applied for naked-eye detection of water in organic solvents via test papers.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Biochemistry & Molecular Biology
Paula Costales, Nicolas Rios-Lombardia, Seila Lorenzo-Herrero, Francisco Moris, Javier Gonzalez-Sabin
Summary: A novel series of enantiopure naphthalimide-cycloalkanediamine conjugates were designed, synthesized and evaluated for their in vitro cytotoxicity. The cytotoxicity of the compounds depended on the size of the cycloalkyl ring and length of the spacer, with no observed enantioselectivity. Compounds 22 and 23 were found to effectively induce G2/M arrest in the tested cell lines, despite a mild apoptotic effect.
BIOORGANIC CHEMISTRY
(2021)
Article
Polymer Science
Aiping Gao, Qingqing Han, Qingqing Wang, Rong Wan, Huijuan Wu, Xinhua Cao
Summary: A novel gelator based on a bis-pyridine derivative was successfully designed and synthesized. It exhibited stable gel formation in various organic solvents and showed aggregation-induced emission (AIE) behavior. The gel could detect Hg2+ and undergo fluorescence quenching and a gel-sol transition upon interaction. The study also revealed the breakdown of noncovalent interactions in the gel system induced by metal coordination.
Article
Biochemical Research Methods
Andrea Mosseri, Mariia Sancho-Albero, Flavia Anna Mercurio, Marilisa Leone, Luisa De Cola, Alessandra Romanelli
Summary: This work explores the self-assembly and generation of complex structures of peptide nucleic acid dimers conjugated to the dipeptide WW. The presence of indole ring in tryptophan promotes the aggregation of the conjugates. Fluorescence is observed upon self-assembly. Molecular modeling studies suggest that fibers are stabilized by stacking interactions between tryptophans and Watson-Crick hydrogen bonds between nucleobases.
BIOCONJUGATE CHEMISTRY
(2023)
Article
Chemistry, Applied
Yang Zhou, Kevin J. Edgar
Summary: The site-specific conjugation of polysaccharides with proteins is challenging, but controlling the reaction between polysaccharides and amino acid derivatives can create useful bioactive natural polymer constructs. By using regioselective bromination, this study successfully synthesized polysaccharide-amino acid ester adducts, providing guidance for designing new pathways to polysaccharide-protein copolymers.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Organic
Binduja Mohan, Mannanthara Kunhumon Noushija, Sankarasekaran Shanmugaraju
Summary: In recent decades, the design of suitable fluorescent chemosensors for trace detection and quantification of biologically relevant analytes has been a focus of research. Among these chemosensors, amino-1,8-naphthalimide-based ones have received special attention due to their easy synthesis, simple structure, tunable functionality, and interesting photophysical properties. This review provides an overview of the advancements made in the use of amino-1,8-naphthalimide-based fluorescent chemosensors for the selective sensing and quantification of zinc ions.
TETRAHEDRON LETTERS
(2022)
Article
Chemistry, Inorganic & Nuclear
Binduja Mohan, Prabukumar Balakrishnan, Deivasigamani Umadevi, Sankarasekaran Shanmugaraju
Summary: A new fluorescent turn-on chemosensor Nap-NH2 was synthesized and showed high selectivity and reversible binding affinity towards Zn(II) ions, making it a potential tool for the detection of biologically relevant metal cations.
INORGANICA CHIMICA ACTA
(2022)
Article
Chemistry, Applied
Tamilselvan Mohan, Karin Stana Kleinschek, Rupert Kargl
Summary: This publication provides an overview of research on conjugates of polysaccharides and peptides, focusing on commonly encountered functional groups and chemical reactions. The distinct properties of conjugates and their applications in biomedical, drug delivery, biosensing, and tissue engineering fields are highlighted. Suggestions for further rigorous chemistries and analytics are proposed, along with an outlook on future developments in the field.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Physical
Wiem Bouali, Muejgan Yaman, Nurgul Seferogu, Zeynel Seferogu
Summary: Novel chemosensors, including coumarin hydrazide, were synthesized and demonstrated the ability to detect cyanide ions through absorption and fluorescence turn-off response. The reaction mechanism between the sensors and the ions was determined through experimental and theoretical studies. The sensors exhibited high detection ability and effectiveness.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Parinaz Abdollahian, Hassan Heidari, Soheila Hassanzadeh, Mohammad Hasanzadeh
Summary: This study successfully synthesized various types of thiolated-graphene quantum dots (GQDs) and utilized them in a one-droplet microfluidic paper-based analytical device for the simultaneous multi-sensing of heavy metal ions. The GQDs were functionalized and stabilized on the surface of hydrophobic fiber-glass, enabling colorimetric chemosensing of ions including iron, copper, cobalt, mercury, chrome, manganese, and nickel. The results were confirmed using fluorescence spectrometry, and the platform showed potential for facile metal ion detection in human urine models and environmental fluids.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
S. L. Barrett, C. Meyer, E. Cwiklik, V Fieglein, M. Burns, J. Guerrero, W. J. Brittain
Summary: Laboratory illumination is strong enough to create a photostationary state (PSS) of amphiphilic azo-benzene compounds in water. The [cis]PSS/[trans]PSS ratios were observed to be 0.33-1.2 in D2O and 0.37-3.8 in dimethyl sulfoxide-d6. ortho-Fluoroazobenzene amphiphiles show higher cis-isomer concentration at equilibrium compared to non-fluorinated compounds due to differences in optical absorption profiles. The kinetics of isomerization were measured using UV-Vis spectroscopy and the ratio of trans-to-cis rates does not directly correlate with the observed PSS. The half-life for PSS formation is 40 minutes for fluorinated compounds and 80 minutes for non-fluorinated compounds.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Jalil Khodayari, Karim Zare, Omid Moradi, Mohammadreza Kalaee, Niyaz Mohammad Mahmoodi
Summary: In this study, an eco-friendly biocomposite (CMC/MIL/CuO) was synthesized and characterized, and its ability to decolorize Acid Blue 92 dye was investigated. The results showed that CMC/MIL/CuO can be used as a suitable photocatalyst for dye decolorization.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Bo Ma, Qian Xu, Huajun Yao, Yalin Chen, Yiyang Wang, Yunfei Yang, Hongfang Shen, Youjun Lu
Summary: This study designed an integrated structure of Cu2O@Au/Cu2O heterostructure particles, which achieved significantly enhanced photocatalytic performance by simultaneously considering the integrated structural characteristics and localized surface plasmon resonance (LSPR) effect. Experimental characterization and theoretical simulation confirmed the three-in-one synergy of the integrated heterostructure, including the LSPR effect of Au nanoparticles, the light scattering based on core-shell heterostructure, and the effective charge separation based on inter-embedded heterostructure. The concept of integrated heterostructure cooperated with LSPR effect provides a new strategy for designing future catalysts.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Robert G. H. Marks, Sarah P. Rockel, Klaus Kerpen, Holger Somnitz, Philipp R. Martin, Maik A. Jochmann, Torsten C. Schmidt
Summary: This study investigated the pH-dependent photolysis of phosphonates in aqueous solutions and analyzed the transformation products. The results showed that the photolysis rate of phosphonates was influenced by pH and light conditions. Furthermore, the carbon kinetic isotope effects varied for different types of phosphonates.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
T. M. Naren Vidaarth, S. Surendhiran, K. S. G. Jagan, S. Savitha, K. S. Balu, A. Karthik, B. Kalpana
Summary: In this study, magnesium oxide nanoparticles were synthesized using plant seed extracts, which exhibited excellent performance in removing dyes from textile water bodies. These nanoparticles also showed strong antibacterial and antioxidant properties.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Mikhail Yu. Ovchinnikov, Vyacheslav A. Antipin, Sergey L. Khursan
Summary: In this study, the recombination of separated ion-radical states (SIRS) in PAPh films was analyzed, and it was found that the contribution of X-SIRS recombination to total luminescence varies with different environments. It was also shown that the recombination of labile SIRS is independent of the nature of the atmosphere. The study theoretically substantiated that SIRS recombination can occur via the transfer of both positive and negative charges, and the efficiency of thermal activation of recombination processes depends on the ratio of radiant and conductive channels of energy transfer.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Sumaira Naeem, Tayyaba Mubashir, Mudassir Hussain Tahir, Jawayria Najeeb, Ahmed Z. Dewidar, Hosam O. El-ansary, Silas Lagat, Anthony Pembere
Summary: This study presents an alternative methodology using machine learning for the selection of novel organic molecules to develop high-performance organic solar cell devices.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
D. Thirumoolan, S. Ragupathy, S. Renukadevi, P. Rajkumar, Rajakumar S. Rai, R. M. Saravana Kumar, Imran Hasan, Mani Durai, Young-Ho Ahn
Summary: In this study, the photodegradation of brilliant green dye was studied in relation to the comparative photocatalytic activity of pure ZnO and Ni-doped ZnO/CSAC. The Ni-doped ZnO/CSAC showed a higher photocatalytic degradation rate under visible light irradiation, suggesting its potential as an effective wastewater treatment material.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Ajmal Khan, Zhidong Chang, Wenjun Li, Xiaohui Ma, Mei Dong, Liang Geng, Ghulam Yasin, Shuaib Khan, Hira Anwar
Summary: Due to its functional structure and tunable shape, 2D zeolitic imidazole framework (ZIFs) have gained significant interest in various fields. In this study, thin ZIF-8 sheets were prepared using a mixed solvent and then delaminated into single layers through physical sonication. These hexagonal sheets exhibited high stability and controlled morphology, and showed excellent performance in dye degradation compared to 3D ZIF-8 crystals.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Vitaly A. Podshibyakin, Evgenii N. Shepelenko, Leonid D. Popov, Tatyana M. Valova, Anton O. Ayt, Lyudmila G. Kuzmina, Anton V. Lisovin, Oleg N. Burov, Mikhail E. Kletskii, Alexander D. Dubonosov, Vladimir A. Bren
Summary: Bifunctional hybrids containing photochromic indolyl(thienyl) diarylethenes and an ionochromic rhodamine moiety connected by a dimethylene spacer were synthesized. These hybrids exhibit absorption at 450-455 nm and fluorescence at 560 nm in toluene. UV light triggers ring-closed non-fluorescent diarylethene formation, which can be reversed under visible light or in the dark. In the presence of H+ cation, a naked eye effect is observed with the opening of the rhodamine-spirolactam ring and a pink-crimson coloration at 561 nm accompanied by intense long-wavelength emission at 586 nm. This process is reversible by exposure to triethylamine, as confirmed by NMR experiments. The light-induced isomerizations and proton-induced transformations were explained using computational methods. Reversible switching of fluorescent properties can be achieved by light irradiation and proton.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Majid Sharifi-Rad, Hazem S. Elshafie, Pawel Pohl
Summary: The study investigated the synthesis of silver nanoparticles using Lallemantia royleana leaf extract, characterized their physico-chemical properties, and evaluated their biopharmaceutical and catalytic applications. The synthesized nanoparticles showed good stability and exhibited higher antioxidant, antimicrobial, anti-inflammatory, anti-arthritic, and cytotoxic activities compared to the leaf extract. These results provide a promising green synthesis route for silver nanoparticles with potential biomedical and catalytic applications.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Meera Moydeen Abdul Hameed, Badr M. Thamer
Summary: Security encoding using photochromism is an effective method for creating authentication substrates. A unique photochromic ink has been developed that emits light continuously under UV rays and darkness. The ink is produced by dispersing lanthanidedoped aluminate nanoparticles in a polymer binder. The resulting composite ink can be used to create transparent films on paper, and the stamped patterns become visible under UV rays, changing from colorless to green.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Monika Lamoria, Rita Kakkar, Marilyn Daisy Milton
Summary: Four novel water-soluble benzimidazolium and bis-benzimidazolium salts with a fluorophore-spacer-receptor design were synthesized and demonstrated to selectively detect Fe3+ ions with large Stokes shifts. The binding mechanism and detection performance were investigated through theoretical and experimental studies.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)