Nitrogen-Doped Arginine Carbon Dots and Its Metal Nanoparticle Composites as Antibacterial Agent

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dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.authoridŞahiner, Mehtap / 0000-0001-8666-7954
dc.authoridSağbaş Suner, Selin / 0000-0002-3524-0675
dc.contributor.authorSağbaş Suner, Selin
dc.contributor.authorŞahiner, Mehtap
dc.contributor.authorAyyala, Ramesh S.
dc.contributor.authorBhethanabotla, Venkat R.
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2025-01-27T20:11:45Z
dc.date.available2025-01-27T20:11:45Z
dc.date.issued2020
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractNitrogen (N)-doped arginine carbon dots (Arg CD) were successfully synthesized using arginine as the amine source and citric acid as the carbon source via a one-pot green synthesis microwave-assisted technique in 2 min. Ag and Cu nanoparticles (NP) were generated within N-doped Arg CDs as composite Arg-Ag CDs and Arg-Cu CDs to render enhanced antibacterial properties. TEM analysis revealed that Arg CDs are in graphitic structures withdspacing ranging from 0.5 nm to 10 nm. The minimum inhibition concentration (MIC) values of Arg CDs with 6.250 mg/mL were decreased by about 100-fold for Arg-Ag CDs and ten-fold for Arg-Cu CDs with 0.062 and 0.625 mg/mL MIC values againstStaphylococcus aureus(S. aureus). The highest antibacterial susceptibility was observed for the Arg-Ag CD composite with 0.125 and 0.312 mg/mL minimum bactericidal concentration (MBC) values against Gram negativeS. aureusand Gram positiveEscherichia coli(E. coli) bacteria strains, respectively. It was found that the metal NPs within Arg CDs significantly increased the antibacterial properties of CDs making them available in the treatment of infections caused by different bacterial species. Furthermore, Arg-Ag CD and Arg-Cu CD composites were tested for Acetylcholinesterase (AChE, E.C. 3.1.1.7) that break down acetylcholine (ACh) into choline and acetic acid leading to the loss of ACh which plays an essential role as neurotransmitter in Alzheimer disease. It was found that Arg-Cu CDs inhibited 74.9 +/- 0.8% and Arg-Ag CDs inhibited 52.1 +/- 3.8% of AChE at a 1.82 mg/mL concentration versus no inhibition for Arg-CD. Moreover, the chelating activity of Arg-Cu CDs and Arg-Ag CDs were tested for Fe(II) and it was found that almost 100% chelating was attained at 116 mu g composites versus no measurable chelation for bare Arg CDs, suggesting the potential neurodegenerative disease treatment properties of these composite CDs in the brain.
dc.description.sponsorshipDepartment of Ophthalmology, College of Medicine, University of South Florida
dc.description.sponsorshipThis research was funded by Department of Ophthalmology, College of Medicine, University of South Florida.
dc.identifier.doi10.3390/c6030058
dc.identifier.issn2311-5629
dc.identifier.issue3
dc.identifier.urihttps://doi.org/10.3390/c6030058
dc.identifier.urihttps://hdl.handle.net/20.500.12428/20711
dc.identifier.volume6
dc.identifier.wosWOS:000578889200001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofC-Journal of Carbon Research
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectArginine
dc.subjectnitrogen-doped carbon dots (CD)
dc.subjectmicrowave treatment
dc.subjectmetal nanoparticle composite CD
dc.subjectantimicrobial
dc.subjectAChE inhibitor
dc.titleNitrogen-Doped Arginine Carbon Dots and Its Metal Nanoparticle Composites as Antibacterial Agent
dc.typeArticle

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