Comparison of Cross-Linked Branched and Linear Poly(ethylene imine) Microgel Microstructures and Their Impact in Antimicrobial Behavior, Copper Chelation, and Carbon Dioxide Capture

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dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.contributor.authorPayne, Molly E.
dc.contributor.authorLou, Yueyun
dc.contributor.authorZhang, Xiaodong
dc.contributor.authorŞahiner, Nurettin
dc.contributor.authorSandoval, Nicholas R.
dc.contributor.authorShantz, Daniel F.
dc.contributor.authorGrayson, Scott M.
dc.date.accessioned2025-01-27T20:20:55Z
dc.date.available2025-01-27T20:20:55Z
dc.date.issued2020
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractPoly(ethylene imine) (PEI) is a cationic polymer that is commercially available in linear PEI (LPEI) and branched PEI (BPEI) architectures for both biological and environmental applications. When the LPEI or BPEI is coupled with divinyl sulfone, cross-linked PEI is formed, and it has been researched for its same robust properties as traditional PEI, but it has a rigid, insoluble structure. Herein, we present the first direct comparison of cross-linked linear PEI microgels and branched PEI microgels (LPM and BPM, respectively) for both their intrinsic characteristics, such as morphology, surface charge, and surface chemistry, and their applications in antimicrobial activity, copper chelation, and CO2 capture. The Cu(II) adsorption capacity of the LPMs is larger than their branched counterparts, and their performance is comparable to that of similar materials with a maximum adsorption capacity of 86.8 mg/g. LPM and BPM shows no significant inhibition in bacterial growth compared to a positive control (culture inoculated with bacteria and no PEI treatment) while the PEI precursors all show complete inhibition of growth. The LPMs were found to be good CO2 adsorbents compared to the BPMs, which adsorbed and desorbed CO2 immediately. The best performing LPM has an adsorption capacity of 4.34 mmol/g at 1 bar CO2. In summary, we have described the first pro-environmental PEI gels, which function as a well-performing dry CO2 adsorbent and copper-chelating agent that is benign to bacteria.
dc.description.sponsorshipTulane University; Louisiana Board of Regents; Smart Materials Design, Analysis, and Processing consortium (SMATDAP) - National Science Foundation [IIA1430280]
dc.description.sponsorshipThe authors gratefully acknowledge Tulane University, the Louisiana Board of Regents for a graduate fellowship (M.E.P.), and support from the Smart Materials Design, Analysis, and Processing consortium (SMATDAP) funded by the National Science Foundation under the cooperative agreement IIA1430280. We also acknowledge Mr. Aibolat Koishybay for additional TGA measurements.
dc.identifier.doi10.1021/acsapm.9b01101
dc.identifier.endpage836
dc.identifier.issn2637-6105
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85094601448
dc.identifier.scopusqualityQ1
dc.identifier.startpage826
dc.identifier.urihttps://doi.org/10.1021/acsapm.9b01101
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21846
dc.identifier.volume2
dc.identifier.wosWOS:000514258700077
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAmer Chemical Soc
dc.relation.ispartofAcs Applied Polymer Materials
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectpoly(ethylene imine)
dc.subjectmicrogels
dc.subjectlinear PEI (LPEI)
dc.subjectbranched PEI (BPEI)
dc.subjectcarbon dioxide capture
dc.subjectcopper chelation
dc.titleComparison of Cross-Linked Branched and Linear Poly(ethylene imine) Microgel Microstructures and Their Impact in Antimicrobial Behavior, Copper Chelation, and Carbon Dioxide Capture
dc.typeArticle

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