Article
Chemistry, Inorganic & Nuclear
Asima Munawar, Helen Stoeckli-Evans, Anvarhussein A. Isab, Imran Rashid, Raja Shahid Ashraf, Muhammad Altaf
Summary: Three new heteroleptic silver(I) polymers were successfully synthesized and characterized. The structures of two polymers were determined by X-ray diffraction analysis. The synthesized polymers showed promising antimicrobial activity against both gram-negative and gram-positive bacteria, as well as antifungal activity against various fungi.
Article
Chemistry, Inorganic & Nuclear
Marie Hoffmann, Samuel Dagorne, Patrick Pale, Aurelien Blanc, Pierre de Fremont
Summary: In this study, the coordination chemistry of chiral NHC-oxazoline bidentate ligands with silver(I) and gold(I) was investigated. Stable dinuclear cationic complexes were obtained in good yields through N-coordination of the oxazoline heterocycle. The complexes were fully characterized and their reactivity in homogeneous catalysis and under oxidative conditions was studied.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Karrar Al-Ameed, Ahmed Hassoon Mageed
Summary: A novel mononuclear AuI-NHC complex was synthesized in good yield and was found to slowly dimerize to its dinuclear analogue in solution, with a clear preference for dinuclear Au formation over the monomer. The study also discussed the unconventional structural contrast between the experimental and computational geometrical analysis of the dinuclear AuI-NHC complex.
Article
Chemistry, Inorganic & Nuclear
Laurenzo D. V. Alba, Tsubasa Hatanaka, Francisco C. Franco, Masaki Nojiri, Marissa G. Noel, Yasuhiro Funahashi
Summary: The crystal structure of a new silver complex of O-acetylsinigrin demonstrates chelating bonds of sulfated thiohydroximate and an η(2)-bond of the ethylene moiety with Ag(I). Mechanistic studies through H-1 NMR measurements and theoretical calculations suggest relevance to glucosinolate degradation in biological systems.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Kumiko Yoshihara, Noriyuki Nagaoka, Aya Umeno, Akinari Sonoda, Hideki Obika, Yasuhiro Yoshida, Bart Van Meerbeek, Yoji Makita
Summary: Novel amino acid-silver complexes loaded with montmorillonite demonstrated high antibacterial efficacy, particularly inhibiting the growth of Streptococcus mutans in dental acrylic resin. The structure of the complexes influenced the presence of silver ions in chloride and their antibacterial efficacy. His-Ag-Mont could serve as an effective antibacterial agent for dental materials.
Article
Chemistry, Inorganic & Nuclear
Abdollah Neshat, Atiyeh Mahdavi, Mohammad Reza Yousefshahi, Mahdi Cheraghi, Vaclav Eigner, Monika Kucerakova, Michal Dusek, Forough Rezaie, Babak Kaboudin
Summary: A series of heteroleptic mononuclear complexes were synthesized by the derivatization of (NHC)-M-Cl (M = Ag, Au) with selected sulfur donors. X-ray diffraction analysis and molecular simulations provided insights into the electronic structures of these metal complexes. In vitro cellular tests showed that compounds 2 and 8 exhibited inhibitory effects on cancerous breast cells. Additionally, these complexes demonstrated antibacterial activity against certain bacteria and had effects on tyrosinase and hemolysis.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Essi Taipale, Marcel Siepmann, Khai-Nghi Truong, Kari Rissanen
Summary: The synthesis and characterization of iodine(I) complexes with benzoimidazole or carbazole-derived sp(2) N-containing Lewis bases, as well as their corresponding silver(I) complexes, were investigated. The results showed the presence of a three-center four-electron (3c-4e) [N-I-N](+) bond in the iodine(I) complexes, with some Ag+ complexes exhibiting deviations from linearity.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Miyase Gozde Gunduz, Busra Kaya, Ceren Ozkul, Onur Sahin, Estharla Madhu Rekha, Dharmarajan Sriram, Bahri Ulkuseven
Summary: Novel thiosemicarbazone derivatives were synthesized, including an unexpected pyrazole derivative. These compounds were screened for antimicrobial activities and biofilm inhibition capacities, providing potential targets for further studies.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Dermatology
Keeley Kathryn Anne Hatch, Robert Edward Burrell, Colleen Nancy Ward
Summary: Silver-gold nanocrystalline films were prepared on HDPE substrates using a novel process, and their structure, chemical composition, and biological properties were evaluated. The results showed that, in the short term, all silver-gold films had comparable bactericidal properties to silver-only films, and 65% silver films prepared with the new process conditions had comparable bacteriostatic abilities to silver-only films over a 7-day period. The inclusion of gold may have potential benefits for anti-inflammatory activity in future studies.
INTERNATIONAL WOUND JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Parveen Kumar, Joonas Komulainen, Antonio Frontera, Jas S. Ward, Christoph Schalley, Kari Rissanen, Rakesh Puttreddy
Summary: Homoleptic [L-I-L](+) iodine(I) complexes were synthesized via the [L-Ag-L](+)-> [L-I-L](+) cation exchange reaction. In solution, the amines form [R3R2R1N-Ag-NR1R2R3](+) silver(I) complexes, which crystallize out as the meso-[L-Ag-L](+) complexes. Density functional theory calculations showed different interaction energies for Ag+-N and I+-N in silver(I) and iodine(I) complexes. X-ray crystal structures revealed unique short contacts between the silver(I) cation and flexible N-alkyl/N-aryl groups.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Pharmacology & Pharmacy
Ana Isabel Ribeiro, Barbara Vieira, Daniela Dantas, Barbara Silva, Eugenia Pinto, Fatima Cerqueira, Renata Silva, Fernando Remiao, Jorge Padrao, Alice Maria Dias, Andrea Zille
Summary: In this study, azoimidazole compounds with potent antifungal activity were conjugated with silver nanoparticles, resulting in synergistic antimicrobial activity. The conjugates exhibited improved antimicrobial activity against microorganisms, particularly bacteria, with concentrations below their individual MIC. Additionally, some combinations were found to be non-cytotoxic towards human cells.
Article
Chemistry, Multidisciplinary
Surendar Karwasara, Leonard R. Maurer, Benjamin Peerless, Gregor Schnakenburg, Ujjal Das, Alexander C. Filippou
Summary: Experimental and theoretical studies were reported for a N-heterocyclic carbene-supported two-coordinated silicon-0-isocyanide compound, synthesized through a Si atom economic two-step method, showcasing unique structural features and dynamics.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Biotechnology & Applied Microbiology
Irum Shahzadi, Syed Munawar Aziz Shah, Mohammad Maroof Shah, Tariq Ismail, Nighat Fatima, Maria Siddique, Ummara Waheed, Ayesha Baig, Aisha Ayaz
Summary: The study examines the antioxidant, anticancer, antibacterial, and antifungal potential of biosynthesized silver nanoparticles (TpAgNPs) using plant extract. The findings reveal the critical role of phenolics, flavonoids, and anthocyanins in the production of TpAgNPs. TpAgNP6 exhibits low cytotoxicity and high antibacterial and antifungal activity.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Microbiology
Yingping Jang, Xiaoya Zhang, Rongxue Zhu, Songlin Li, Shiyu Sun, Wenqiang Li, Hao Liu
Summary: We successfully biosynthesized silver nanoparticles (LEVB-Ag NAPs) using Viola betonicifolia leaf extract and characterized their properties. The biosynthesized LEVB-Ag NAPs exhibited excellent antibacterial, antimycotic, biofilm inhibiting, and cytobiocompatible activities, making them a promising candidate for various therapeutic applications.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Chemistry, Physical
Prabha Devi Balakrishnan, Nigam P. Rath, Thathan Premkumar, Abinaya Ganesh, Ponnusamy Kanchana
Summary: A novel monovalent lithium complex was synthesized via a simple one-pot green reaction, and its structural and properties were investigated. The complex showed potential for the development of antimicrobial drugs.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Applied
Vishal Kandathil, Aisha Siddiqa, Abhinandan Patra, Bhakti Kulkarni, Manjunatha Kempasiddaiah, B. S. Sasidhar, Shivaputra A. Patil, Chandra Sekhar Rout, Siddappa A. Patil
APPLIED ORGANOMETALLIC CHEMISTRY
(2020)
Article
Chemistry, Inorganic & Nuclear
Manjunatha Kempasiddaiah, Vishal Kandathil, Ramesh B. Dateer, B. S. Sasidhar, Shivaputra A. Patil, Siddappa A. Patil
Summary: A greener approach for the synthesis of various functionalized biaryl frameworks through a palladium-catalyzed denitrogenative cross-coupling has been developed, utilizing biogenically prepared palladium nanoparticles immobilized on cellulose-based dip catalyst. The catalyst demonstrated excellent reactivity, selectivity, and recyclability, making it a promising strategy for constructing a wide range of functional groups tolerated biaryls.
TRANSITION METAL CHEMISTRY
(2021)
Review
Chemistry, Medicinal
Siddappa A. Patil, Shivaputra A. Patil, Temilade Fariyike, Kostiantyn O. Marichev, Hector Mario Heras Martinez, Alejandro Bugarin
Summary: Coumarins, a family of naturally occurring heterocyclic ring systems, have been found to exhibit various therapeutic characteristics when bearing azetidinone and thiazolidinone moieties, including antimicrobial, anticancer, antidiabetic, and anti-inflammatory properties. Studies have shown that advances in synthetic methodologies and structure-activity relationships of coumarins have led to increased interest from researchers in various fields.
FUTURE MEDICINAL CHEMISTRY
(2021)
Article
Chemistry, Organic
Arnab Ghosh, Rajeev Hegde, Haridas B. Rode, Ram Ambre, Manoj Mane, Siddappa A. Patil, Balasubramanian Sridhar, Ramesh B. Dateer
Summary: An exclusive synthesis of benzo-oxazine, benzo-oxazepine, and benzo-oxazocine from aryl propanal and 2-(hydroxyamino)phenyl alcohol under metal-free conditions is described. The new C-O, C-N, and C-O bonds formation occur at room temperature to form six-, seven-, and eight-membered heterocycles under one-pot reaction conditions. The photophysical properties are studied using ultraviolet-visible absorption and photoluminescence, with mechanistic elucidation supported by control experiment and literature precedents.
Review
Infectious Diseases
Siddappa A. Patil, Aravind R. Nesaragi, Raul R. Rodriguez-Berrios, Sydney M. Hampton, Alejandro Bugarin, Shivaputra A. Patil
Summary: Currently, microbial infections are prevalent in hospitals and community health centers and are a major global cause of death. Antibiotics, although commonly used to combat microbial infections, have faced increasing resistance due to their overuse. In search of alternatives, medicinal chemists have focused on coumarin triazole derivatives, which have shown various therapeutic applications including antimicrobial, antioxidant, and anticancer activities. This review summarizes the recent advances in coumarin triazole derivatives as potential antimicrobial agents published from 2006 to 2022.
Article
Chemistry, Physical
Harini G. Sampatkumar, Novuhulu Rhakho, Vishal Kandathil, Manjunatha Kempasiddaiah, Arunkumar M. Shirahatti, Ramesh B. Dateer, Akshaya K. Samal, Siddappa A. Patil
Summary: An environmentally friendly approach was developed using biogenically synthesized palladium nanoparticles grafted on banana leaves extract-modified graphitic carbon nitride (PdNPs@g-C3N4-BLE) as a nanocatalyst for the reduction of nitroarenes and removal of PFAS from wastewater. The synthesized nanocatalyst exhibited enhanced activity, greater stability, and good selectivity for nitroarene reduction under mild reaction conditions. Furthermore, it acted as an efficient adsorbent for the removal of toxic PFAS from wastewater.
Article
Materials Science, Multidisciplinary
Arnet Maria Antony, C. V. Yelamaggad, Siddappa A. Patil
Summary: The study focuses on the synthesis, characterization, and catalytic activity of a heterogeneous nanocatalyst for the degradation of organic dye molecules in wastewater. The nanocatalyst, decorated with palladium nanoparticles on functionalized graphitic carbon nitride, exhibited excellent catalytic performance for the degradation of synthetic organic dyes and displayed recyclability. Moreover, the nanocatalyst also showed peroxidase-type activity, indicating its potential for H2O2 sensing.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Siddappa A. Patil, Kostiantyn O. Marichev, Shivaputra A. Patil, Alejandro Bugarin
Summary: MXenes, two-dimensional materials consisting of transition metal carbides, nitrides, and/or carbonitrides, have gained significant attention in energy-related and biomedicine fields. They offer advantages over traditional carbon graphenes, such as high conductivity, strength, chemical and mechanical stability, and hydrophilic properties. The functional groups on the MXene surface further enable the immobilization of noble metal nanoparticles, making MXene composite materials a promising option for support materials. This review summarizes the synthesis, characterization, physicochemical properties, and applications of known 2D MXene-metal nanomaterials based on critical analysis of the literature, and discusses the current state, challenges, and potential for future research in broad applications of MXene-metal nanomaterials.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Swarnalata Swain, Vishal Kandathil, Golam Masud Karim, Uday Narayan Maiti, Siddappa A. Patil, Akshaya K. Samal
Summary: A octahedral PdFe alloy nanostructure was designed using an aqueous medium synthesis strategy, with the shape and distribution changing based on the metal precursor ratios. The optimized alloy catalyst exhibited improved catalytic behavior compared to other nanocatalysts for the Hiyama cross-coupling reaction, with a high yield and excellent reusability.
ACS APPLIED NANO MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Masira I. Chamanmalik, Arnet Maria Antony, C. V. Yelamaggad, Shivaputra A. Patil, Siddappa A. Patil
Summary: In the past decade, researchers have focused on materials with enzyme-like properties to substitute natural enzymes. The use of nanomaterials as enzyme mimics has shown potential for improvement in activity and application. In this study, silver nanoparticles (Ag NPs) were synthesized using Tectona grandis leaves extract and decorated on Mg-Al layered double hydroxides (Mg-Al-OH@TGLE-AgNPs) as a nanocatalyst. The Mg-Al-OH@TGLE-AgNPs nanocatalyst demonstrated peroxidase-like activity and was utilized for the quantification of Hg2+ ions. Moreover, the nanocatalyst showed notable antibacterial activity against Gram-negative Escherichia coli and Gram-positive Bacillus cereus due to the synergistic effect of Ag NPs and phytochemicals present in the Tectona grandis leaves extract.
Article
Biochemistry & Molecular Biology
Aakhila Banu, Arnet Maria Antony, Balappa Somappa Sasidhar, Shivaputra A. Patil, Siddappa A. Patil
Summary: This article introduces a novel nanozyme based on palladium nanoparticles grafted on jackfruit seed-derived biochar, which mimics the activity of peroxidase and enables rapid and colorimetric detection of H2O2. In addition, this nanozyme can also be used as a potential nanosensor for estimating biomolecules glucose and glutathione, and it shows recyclability for multiple uses.
Review
Environmental Sciences
Siddappa A. Patil, Raul R. Rodriguez-Berrios, David Chavez-Flores, Durgesh V. Wagle, Alejandro Bugarin
Summary: Iodine in the form of iodide ions is an essential chemical element in the human body. However, the exponential growth of human society and the use of iodine in various applications have led to the contamination of soil, underground water, and freshwater sources, causing adverse effects.
Article
Chemistry, Multidisciplinary
Rajeev Hegde, Arnab Ghosh, Arvind H. Jadhav, Aatika Nizam, Siddappa A. Patil, Febina Peter, Ramesh B. Dateer
Summary: An eco-friendly method for one-step synthesis of palladium nanoparticles was reported, utilizing phytochemicals present in Areca Nut Husk extract. The nanoparticles showed spherical morphology and were tested for their catalytic activity in various organic transformations, with detailed discussions on recyclability, control experiments, mechanistic elucidation, and gram-scale synthesis.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Cillian O'Beirne, Magdalena E. Piatek, Jen Fossen, Helge Muller-Bunz, David R. Andes, Kevin Kavanagh, Siddappa A. Patil, Marcus Baumann, Matthias Tacke
Summary: N-heterocyclic silver carbene compounds have shown excellent inhibition against pathogenic bacteria and fungi, with the addition of virulence targeting substituents and continuous flow synthesis leading to the development of new complexes with promising potential for antimicrobial activity.
Article
Chemistry, Multidisciplinary
Vishal Kandathil, Alaap Kumizhi Veetil, Abhinandan Patra, Akshay Moolakkil, Manjunatha Kempasiddaiah, Sasidhar Balappa Somappa, Chandra Sekhar Rout, Siddappa A. Patil
Summary: A facile synthesis of cellulosic-carbon-shielded palladium-magnetic nanoparticle hybrid material (Pd-MNP@SCB) was demonstrated, showcasing its efficient performance in catalysis and energy storage applications with good recyclability and cycling stability.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Guojun Hu, Ziyue Deng, Yanwei Wang, Dan Yuan, Yong Zhang, Yingming Yao
Summary: A series of rare-earth metal complexes were synthesized and used as efficient initiators for the polymerization of trimethylene carbonate (TMC) and (L)-lactide ((L)-LA).
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Van Ha Nguyen, John H. K. Yip
Summary: In this study, eight PtII-azulene complexes were synthesized to investigate the effect of metalation on the electronic structures, spectroscopy, and luminescence of organic chromophores. The results showed that the attachment of Pt substituents to azulene affected the HOMOs, LUMOs, and luminescence properties. The study provides insights into the role of metalation in modifying the properties of organic chromophores.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Moon Kedia, Virender Singh, Bhaskaran Shankar, Malaichamy Sathiyendiran
Summary: This study synthesized two types of neutral binuclear metallocycles using a one-pot solvothermal method and characterized their structures. The analysis revealed that these complexes adopt a binuclear heteroleptic cyclic architecture and belong to phosphine oxide donor (P=O)-based supramolecular coordination cyclic complexes.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Radhey S. Srivastava
Summary: This study demonstrates the effectiveness of zero-valent elements as reductants for the deoxydehydration reaction of polyols catalyzed by ONO-pincer ligated molybdenum dioxo. The insolubility and easy separability of the reductants and their oxidized products during the reaction are emphasized. Additionally, the choice of ligand has an impact on the catalytic performance of the reaction.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Hao Zhou, Yajun Sun, Li Deng, Weiran Yang, Yuehui Li
Summary: Efficient Ru-catalyzed hydrogenation of aldehydes was achieved using carbazole-derived phosphine ligands, with the crucial role of N-H moiety in promoting the catalytic reaction. The method was successfully applied in the Co/Ru-catalyzed hydroformylation process, resulting in the production of long-chain alcohols with excellent yields.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Theodor Danescu, Alexandru Lupan, Radu Silaghi-Dumitrescu, R. Bruce King
Summary: The structures and energies of complexes containing (Me2C2N2P)2Ru2(CO)n and (Me2C2N2P)2Fe2(CO)n have been studied. Low-energy structures are characterized by the presence of bridging diazaphospholyl rings, while higher-energy structures involve different ligand structures.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Savannah C. Kapper, Aamani Ponnekanti, Jonas Schaab, Tian-yi Li, Christine L. Chung, Gael Ung, Peter I. Djurovich, Mark E. Thompson
Summary: Organometallic iridium complexes with two cyclometalated ligands and one bis-oxazoline derived ancillary ligand were studied. These complexes have emission spanning across the visible and near-ultraviolet region, with moderate to high photoluminescence quantum yields. The (ppy)2Ir(BOX-CN) complexes were resolved into Delta- and Lambda-diastereomers based on solubility differences.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Zahra Karimi Sangari, Hossein Naeimi
Summary: In this research, a nanostructured CoCuFe2O4 catalyst was prepared using a brief and useful synthetic strategy. This catalyst was used for synthesizing 1,2,4,5-tetrasubstituted imidazole derivatives under ultrasonic irradiation. The approach offers advantages such as high efficiency, short reaction times, simplicity of the reaction medium, accelerated reaction rates, and easier separation and purification of products.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Rukhsana Gul, Wajid Munir, Ebraheem Abdu Musad Saleh, Shaukat Shujah, Muhammad Sirajuddin, Saira Tabassum, Khalil Ur Rehman, Dilfaraz Khan, Sameerah I. Al-Saeedi, Ehab A. Abdelrahman
Summary: Two new Schiff base ligands were synthesized and used to form copper, nickel, and cobalt complexes. The synthesized compounds were characterized and screened for various biological activities. The metal complexes showed better activities in antibacterial, antifungal, antidiabetic, and antioxidant assays.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Review
Chemistry, Inorganic & Nuclear
Ahsan Nazir, Pengwei Huo, Ameena Tur Rasool
Summary: This review explores the potential of g-C3N4-based S-scheme heterojunctions in addressing environmental issues. It summarizes the mechanism and preparation techniques of S-scheme heterojunctions based on g-C3N4, and presents recent studies on their applications in pollutant removal, CO2 reduction, hydrogen production, and bacterial disinfection. The review concludes with an outlook on future challenges for g-C3N4-based S-scheme heterojunctions.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Francois Mazars, Koffi Senam Etse, Guillermo Zaragoza, Lionel Delaude
Summary: The activity of three Pd-PEPPSI catalyst precursors with N-heterocyclic carbene (NHC) ligands derived from caffeine and theophylline in Mizoroki-Heck reactions was tested. The results showed that the catalysts achieved high conversions and yields, especially in the presence of electron-withdrawing substituents.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Bo-Han Wu, Xue Zhou, Lin Liu, Zheng-Bo Han
Summary: Researching carbon dioxide removal from flue gas and natural gas is crucial. Metal-organic frameworks (MOFs) are commonly used in adsorption due to their high surface area, porosity, and chemical properties. An ultra-microporous MOF CPM-20(Co) with mixed ligand was synthesized using inexpensive ligands. The material exhibited high selectivities and low regenerative energy, making it a promising option for CO2 separation in industries.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
