Research Article
Antibiofilm and Antimicrobial Properties of 1-allyl-3-(2-diisopropylaminoethyl) Benzimidazolium Chloride and its Silver(I)-NHC Complex
Abstract
Today, the number of antimicrobials used in treatment has decreased, especially due to drug resistance. We need new antimicrobials. Biofilms are an important cause of antimicrobial resistance. In this study, the antimicrobial and antibiofilm properties of the salt and silver complex of benzimidazolium-based NHC compound, which were previously synthesized and characterized, were evaluated. The antimicrobial properties were tested using the broth microdilution method, while their antibiofilm potential was determined by microtiter plate assay. Salt of the NHC compound (1a) showed antimicrobial activity on microorganisms at concentrations between 31.25-125 µg/mL. The silver complex (2a) of the NHC compound showed higher antimicrobial and antibiofilm activity than the salt compound. This activity was highest on Candida albicans yeast (MIC 3.9 µg/mL). Compound 2a reduced the biofilm structure of C. albicans yeast by 86.1% compared to the control. In addition, compound 2a showed 76.4-80.6% antibiofilm activity on gram-negative bacteria. NHC compounds are seen as a promising resource for the development of new generation antimicrobials. The NHC compound evaluated in this study was found to have significant antimicrobial and antibiofilm activity. These compounds could be an important resource for the discovery of future biofilm-acting antimicrobials.
Thanks
The authors would like to thank Neslihan Şahin for providing us with the compounds.
References
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Year 2022,
, 432 - 436, 30.09.2022
Abstract
References
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- [3] Hutchings M.I., Truman A.W., Wilkinson B., Antibiotics: Past, Present and Future, Curr. Opin. Microbiol., 51 (2019) 72-80.
- [4] McEwen S.A., Collignon P.J., Antimicrobial Resistance: a One Health Perspective, Microbiol. Spectr., 6 (2) (2018) 1-26.
- [5] Frieri M., Kumar K., Boutin A., Antibiotic Resistance, J. Infect. Public. Health., 10 (4) (2017) 369-378.
- [6] Conly J., Johnston B., Where Are All the New Antibiotics? The New Antibiotic Paradox, Can. J. Infect. Dis. Med. Microbiol., 16 (3) (2005) 159-60.
- [7] Rabin N., Zheng Y., Opoku-Temeng C., Du Y., Bonsu E., Sintim H.O., Biofilm Formation Mechanisms and Targets for Developing Antibiofilm Agents, Future Med. Chem., 7 (4) (2015) 493-512.
- [8] Liang J., Sun D., Yang Y., Li M., Li H., Chen L., Discovery of Metal-Based Complexes as Promising Antimicrobial Agents, Eur. J. Med. Chem., 224 (2021) 113696.
- [9] Şahin-Yıldırım E., Şahin N., Synthesis and Structural Characterization of Chloro [1-allyl-3-(2-diisopropylaminoethyl ) benzimidazol-2-ylidene] silver(I), Ordu Univ. J. Sci. Tech., 10 (2) (2020) 66-75.
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- [14] Kaloğlu M., Kaloğlu N., Günal S., Özdemir İ., Synthesis of N-Heterocyclic Carbene-Based Silver Complexes and Their Antimicrobial Properties Against Bacteria and Fungi, J. Coord. Chem., 74 (17-20) (2021) 3031-3047.
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- [16] Sarı Y., Akkoç S., Gök Y., Sifniotis V., Özdemir İ., Günal S., Kayser V., Benzimidazolium-Based Novel Silver N-Heterocyclic Carbene Complexes: Synthesis, Characterisation and In vitro Antimicrobial Activity, J. Enzyme Inhib. Med. Chem., 31 (6) (2016) 1527-1530.
- [17] Asekunowo P.O., Haque R.A., Razali M.R., Avicor S.W., Wajidi M.F.F., Synthesis and Characterization of Nitrile Functionalized Silver(I)-N-Heterocyclic Carbene Complexes: DNA Binding, Cleavage Studies, Antibacterial Properties and Mosquitocidal Activity Against the Dengue Vector, Aedes Albopictus, Eur. J. Med. Chem., 150 (2018) 601-615.
- [18] Nadar S., Khan T., Patching S.G., Omri A., Development of Antibiofilm Therapeutics Strategies to Overcome Antimicrobial Drug Resistance, Microorganisms, 10 (2) (2022) 303.
- [19] Celik C., Tutar U., Sahin N., Ozturk A., Antimicrobial, Anti-biofilm and Cytotoxic Properties of Methallyl Functionalized Benzimidazolium-Derived Ag(I)-N-Heterocyclic Carbene Complexes, Trop. J. Pharm. Res., 21
There are 19 citations in total.
Details
| Primary Language | English |
|---|---|
| Journal Section | Natural Sciences |
| Authors | |
| Publication Date | September 30, 2022 |
| Submission Date | May 26, 2022 |
| Acceptance Date | September 6, 2022 |
| Published in Issue | Year 2022 |