Synthesis, characterization, and application of a novel water-soluble polyethyleneimine-based Schiff base colorimetric chemosensor for metal cations and biological activity

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dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.authoridDemir, Neslihan / 0000-0002-2347-8344
dc.authoridYıldız, Mustafa / 0000-0001-5833-7499
dc.contributor.authorYıldız, Mustafa
dc.contributor.authorDemir, Neslihan
dc.contributor.authorÜnver, Hüseyin
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2025-01-27T20:26:51Z
dc.date.available2025-01-27T20:26:51Z
dc.date.issued2017
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractA novel colorimetric cation sensor based on polyethyleneiminehydrochloride (PEI.HCl) as Schiff base was synthesized. The molecular structure of the PEI.HCl-Schiff base was characterized via FT-IR, H-1 NMR, C-13 NMR, LC-MS and UV-vis spectroscopic methods The chromogenic sensing ability of PEI.HCl-Schiff base was investigated with colorimetric and UV-vis spectroscopy. The designed sensor exhibited highly selective recognition for Fe2+, Co2+, Cu2+, Cr3+, and Fe3+ amongst a wide range of metal ions tested in water. In the presence of these cations, the sensor underwent a dramatic colour change from yellow to green, while the presence of other metal cations such as Mn2+, Ni2+, Zn2+, Cd2+, Hg2+ and Pb2+ produced no effect on the colour. The absorption spectral changes were observed upon the addition of Fe2+, Co2+, Cu2+, Cr3+, and Fe3+ with impressive naked eye detectable colour change from yellow to dark-gray, light-brown, green, light-green and brown, respectively. The most discernable colour change in the PEI.HCl-Schiff base was caused by Fe2+, Co2+, Cu2+, Cr3+, and Fe3+ suggesting the selective detection of these metal cations. Surprisingly, PEI.HCl-Schiff base behaves as highly selective chemical sensor for the oxidation of Fe2+ to Fe3+ cations. Moreover, the antimicrobial activity of PEI.HCl-Schiff base was tested for its minimum inhibitory concentration (MIC), and the interaction with calf thymus DNA (CT-DNA) was investigated using UV-vis spectroscopy. DNA cleavage study showed that PEI.HCl-Schiff base can successfully cleave DNA without any external agents. (C) 2017 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.snb.2017.05.159
dc.identifier.endpage61
dc.identifier.issn0925-4005
dc.identifier.scopus2-s2.0-85019969431
dc.identifier.scopusqualityQ1
dc.identifier.startpage55
dc.identifier.urihttps://doi.org/10.1016/j.snb.2017.05.159
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22460
dc.identifier.volume252
dc.identifier.wosWOS:000408277500008
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofSensors and Actuators B-Chemical
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPolyethyleneimine
dc.subjectMetal Cations
dc.subjectColorimetric Sensors
dc.subjectBiological Activity
dc.subjectCT-DNA
dc.titleSynthesis, characterization, and application of a novel water-soluble polyethyleneimine-based Schiff base colorimetric chemosensor for metal cations and biological activity
dc.typeArticle

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