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Maļeckis A, Cvetinska M, Puckins A, Osipovs S, Sirokova J, Belyakov S, Kirilova E. Synthesis and Properties of New 3-Heterylamino-Substituted 9-Nitrobenzanthrone Derivatives. Molecules 2023; 28:5171. [PMID: 37446832 DOI: 10.3390/molecules28135171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023] Open
Abstract
In the present study, new fluorophores based on disubstituted benzanthrone derivatives were designed starting from 9-nitro-3-bromobenzanthrone with nucleophilic substitution of the bromine atom with some secondary cyclic amines. It has been found that this reaction is positively affected by the presence of a nitro group in comparison with 3-bromobenzanthrone. The new compounds exhibit intense absorption and pronounced luminescent properties in various organic solvents. In this regard, their photophysical properties were evaluated with an experimental study of the solvatochromic behavior of the obtained compounds in various solvents. It has recently been found that the addition of an electron-withdrawing nitro group to the benzanthrone core increases its first- and second-order hyperpolarizability. Such dyes can be used in the fabrication of optical limiter devices. Therefore, the developed fluorescent molecules have a potential prospect for extensive application in optoelectronics.
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Affiliation(s)
- Armands Maļeckis
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena Str. 3, LV-1048 Riga, Latvia
| | - Marija Cvetinska
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena Str. 3, LV-1048 Riga, Latvia
| | - Aleksandrs Puckins
- Department of Applied Chemistry, Institute of Life Sciences and Technology, Daugavpils University, LV-5401 Daugavpils, Latvia
| | - Sergejs Osipovs
- Department of Applied Chemistry, Institute of Life Sciences and Technology, Daugavpils University, LV-5401 Daugavpils, Latvia
| | - Jelizaveta Sirokova
- Department of Applied Chemistry, Institute of Life Sciences and Technology, Daugavpils University, LV-5401 Daugavpils, Latvia
| | - Sergey Belyakov
- Latvian Institute of Organic Synthesis, Aizkraukles Str. 21, LV-1006 Riga, Latvia
| | - Elena Kirilova
- Department of Applied Chemistry, Institute of Life Sciences and Technology, Daugavpils University, LV-5401 Daugavpils, Latvia
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Synthesis and In Vitro Antimicrobial Evaluation of Photoactive Multi-Block Chalcone Conjugate Phthalimide and 1,8-Naphthalimide Novolacs. Polymers (Basel) 2021; 13:polym13111859. [PMID: 34205041 PMCID: PMC8199857 DOI: 10.3390/polym13111859] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/15/2021] [Accepted: 05/24/2021] [Indexed: 11/16/2022] Open
Abstract
Herein we report new multiblock chalcone conjugate phthalimide and naphthalimide functionalized copolymers with a topologically novel architecture synthesis using nucleophilic substitution and polycondensation methodology. The structures of the synthesized novolacs were elucidated on the basis of their spectroscopic analysis including FTIR, 1H NMR, and 13C NMR spectroscopy. Further, the number-average and weight-average molecular weights of the novolac polymers were determined by gel permeation chromatography (GPC). We examined the solubility of the synthesized polymers in various organic solvents including CHCl3, CH3CN, THF, H2O, CH3OH, DMSO, and DMF and found they are insoluble in both methanol and water. The novolac polymers were evaluated for their photophysical properties and microbial activities. The investigation of the antimicrobial activities of these polymers reveals significant antimicrobial activity against the pathogens E. coli, S. aureus, C. albicans, and A. niger.
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Schneider G, Bim FL, Sousa ÁFLD, Watanabe E, Andrade DD, Fronteira I. The use of antimicrobial-impregnated fabrics in health services: an integrative review. Rev Lat Am Enfermagem 2021; 29:e3416. [PMID: 33852687 PMCID: PMC8040786 DOI: 10.1590/1518-8345.4668.3416] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 09/19/2020] [Indexed: 11/22/2022] Open
Abstract
Objective: to analyze evidence concerning the feasibility of antimicrobial-impregnated fabrics in preventing and controlling microbial transmission in health services. Method: an integrative review using the following databases: MEDLINE (via PubMed), Web of Science, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Scopus, and Latin American and Caribbean Health Sciences Literature (LILACS), regardless of language and date of publication. Seven studies were included in the analysis to verify the types of fabrics and substances used to impregnate the fabrics, applicability in health services, and decrease in microbial load. Results: silver nanoparticles and copper oxide are the main antimicrobial substances used to impregnate the fabrics. The patients’ use of these fabrics, such as in bed and bath linens and clothing, was more effective in reducing antimicrobial load than in health workers’ uniforms. Conclusion: the use of these antimicrobial-impregnated textiles, especially by patients, is a viable alternative to prevent and control microbial transmission in health services. Implementing these fabrics in health workers’ uniforms requires further studies, however, to verify its effectiveness in decreasing microbial load in clinical practice.
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Affiliation(s)
- Guilherme Schneider
- Universidade de São Paulo, Escola de Enfermagem de Ribeirão Preto, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirão Preto, SP, Brazil.,Scholarship holder at the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), Brazil
| | - Felipe Lazarini Bim
- Universidade de São Paulo, Escola de Enfermagem de Ribeirão Preto, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirão Preto, SP, Brazil.,Scholarship holder at the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), Brazil
| | - Álvaro Francisco Lopes de Sousa
- Universidade de São Paulo, Escola de Enfermagem de Ribeirão Preto, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirão Preto, SP, Brazil.,Universidade Nova de Lisboa, Instituto de Higiene e Medicina Tropical, Lisboa, Portugal.,Scholarship holder at the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil
| | - Evandro Watanabe
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Denise de Andrade
- Universidade de São Paulo, Escola de Enfermagem de Ribeirão Preto, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirão Preto, SP, Brazil.,Scholarship holder at the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil
| | - Inês Fronteira
- Universidade Nova de Lisboa, Instituto de Higiene e Medicina Tropical, Lisboa, Portugal
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Antibacterial Textile Based on Hydrolyzed Milk Casein. MATERIALS 2021; 14:ma14020251. [PMID: 33419124 PMCID: PMC7825562 DOI: 10.3390/ma14020251] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 12/25/2022]
Abstract
Antimicrobial textile structures are developed based on polypropylene (PP) and a natural material, hydrolyzed casein. The casein, from bovine milk, is subjected to acid hydrolysis in aqueous media, then blended into the PP matrix in the melt phase by extrusion. The obtained blend, containing 5 wt.% of hydrolyzed casein, is then processed by a melt spinning process to get multifilaments, leading to the production knitting structures. Thanks to the addition of the hydrolyzed casein, the obtained textile showed a strong antibacterial activity towards both Gram (+) and Gram (−) bacterial strains. The addition of 5 wt.% hydrolyzed casein does not significantly impact the mechanical properties of PP in the dumbbells form, but a small decrease was observed in the tenacity of the filaments. No moisture retention was observed after the addition of hydrolyzed casein, but the rheological behavior was slightly affected. The obtained results can contribute to addressing concerns regarding nonrenewable antibacterial agents used in textile materials, particularly their effects on the environment and human health, by offering antibacterial agents from a biobased and edible substance with high efficiency. They are also promising to respond to issues of wasting dairy products and recycling them, in addition to the advantages of using melt processes.
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Staneva D, Manov H, Yordanova S, Vasileva‐Tonkova E, Stoyanov S, Grabchev I. Synthesis, spectral properties and antimicrobial activity of a new cationic water‐soluble pH‐dependent poly(propylene imine) dendrimer modified with 1,8‐naphthalimides. LUMINESCENCE 2020; 35:947-954. [DOI: 10.1002/bio.3809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 02/28/2020] [Accepted: 04/01/2020] [Indexed: 01/28/2023]
Affiliation(s)
| | - Hristo Manov
- Faculty of Chemistry and PharmacySofia University ‘St. Kliment Ohridski’ Sofia Bulgaria
| | - Stanislava Yordanova
- Faculty of Chemistry and PharmacySofia University ‘St. Kliment Ohridski’ Sofia Bulgaria
| | | | - Stanimir Stoyanov
- Faculty of Chemistry and PharmacySofia University ‘St. Kliment Ohridski’ Sofia Bulgaria
| | - Ivo Grabchev
- Faculty of MedicineSofia University ‘St. Kliment Ohridski’ Sofia Bulgaria
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Recent Studies on the Antimicrobial Activity of Transition Metal Complexes of Groups 6–12. CHEMISTRY-SWITZERLAND 2020. [DOI: 10.3390/chemistry2020026] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Antimicrobial resistance is an increasingly serious threat to global public health that requires innovative solutions to counteract new resistance mechanisms emerging and spreading globally in infectious pathogens. Classic organic antibiotics are rapidly exhausting the structural variations available for an effective antimicrobial drug and new compounds emerging from the industrial pharmaceutical pipeline will likely have a short-term and limited impact before the pathogens can adapt. Inorganic and organometallic complexes offer the opportunity to discover and develop new active antimicrobial agents by exploiting their wide range of three-dimensional geometries and virtually infinite design possibilities that can affect their substitution kinetics, charge, lipophilicity, biological targets and modes of action. This review describes recent studies on the antimicrobial activity of transition metal complexes of groups 6–12. It focuses on the effectiveness of the metal complexes in relation to the rich structural chemical variations of the same. The aim is to provide a short vade mecum for the readers interested in the subject that can complement other reviews.
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Zhao Z, Cai W, Song L, Mu X, Hu Y. Comprehensive Property Investigation of Mold Inhibitor Treated Raw Cotton and Ramie Fabric. MATERIALS 2020; 13:ma13051105. [PMID: 32121662 PMCID: PMC7085025 DOI: 10.3390/ma13051105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/10/2020] [Accepted: 02/27/2020] [Indexed: 12/17/2022]
Abstract
At present, research rarely focuses on side effects of the use of mold inhibitors on raw cotton and ramie fabric. Four different mold inhibitors (dimethyl fumarate (DMF), ethyl p-hydroxybenzoate (EHB), propyl p-hydroxybenzoate (PHB), and calcium sorbate (CS)) were used to treat raw cotton and ramie fabric through a dipping method. The optical properties, wettability, thermal conductivity, thermal stability, and combustion properties of treated cotton and ramie samples have been investigated. The reflectance of UV light was improved by the addition of mold inhibitors. In addition, the presence of EHB, PHB, and CS improved the wettability of raw cotton and ramie fabric. It was found that thermal conductivity was slightly increased, influencing the heat insulation effect of the fabrics. Since the additives are flammable, the presence of DMF, EHB, and PHB caused an increase in pHRR and THR for combustion of cotton samples. This addition of CS caused a decrease in pHRR and THR of cotton due to the flame retardancy of CS. This comprehensive investigation of the properties of raw cotton and ramie fabrics treated with these materials should provide a basis for the choice of mold inhibitors.
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Affiliation(s)
- Zhixin Zhao
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China; (W.C.); (L.S.)
- School of Chemistry and Materials Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China;
| | - Wei Cai
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China; (W.C.); (L.S.)
| | - Lei Song
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China; (W.C.); (L.S.)
| | - Xiaowei Mu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China; (W.C.); (L.S.)
- Correspondence: (X.M.); (Y.H.)
| | - Yuan Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China; (W.C.); (L.S.)
- Correspondence: (X.M.); (Y.H.)
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