Synthesis of polyethylenimine (PEI) functionalized silver nanoparticles by a hydrothermal method and their antibacterial activity study

Liu, Zhiguo; Wang, Yuanlin; Zu, Yuangang; Fu, Yujie; Li, Na; Guo, Na; Liu, Ruisi; Zhang, Yiming

doi:10.1016/j.msec.2014.05.007

Cited by 85 publications

(37 citation statements)

References 37 publications

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“…The effectiveness of these nanoparticles depends on the performance of adequate laboratory procedures during preparation [29][30][31][32][33]. There are more than one hundred reports regarding the combination of silver with different stabilisers, including polymers like polyethyleneimine, while avoiding strong aggregation [17,18,19,34,35]. All the authors used several alterations, but the basic steps of synthesis include the reduction of silver and inhibition of aggregation, followed by functionalization for a given role.…”

Section: Discussionmentioning

confidence: 99%

“…We conceptualised that silver-polyethyleneimine (Ag-PEI), with its core-shell micellar structure, excellent colloidal stability, and easy method of hydrothermal synthesis, would be the optimal active antimicrobial ingredient [16][17][18]. The synergistic antibacterial effect of silver with polyethyleneimine (PEI) has also been demonstrated [19,20].…”

Section: Introductionmentioning

confidence: 99%

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Antimicrobial Silver-Polyethyleneimine-Polylactic Acid Polymer Composite Film for Coating Methacrylate-Based Denture Surfaces

Géczi

Hermann

Kőhidai

et al. 2018

Journal of Nanomaterials

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To prepare an antimicrobial polymer composite composed of silver- (Ag-) polyethyleneimine- (PEI-) polylactic acid (PLA) in chloroform, for coating the mucosal surfaces of methacrylate-based dentures as a prospective therapy for denture stomatitis.The water-insoluble, tightly bound, hard, micrometre-thin, and colourless film exerts its effects by direct contact with the pathogens and via the active constituents (Ag, PEI, and Ag-PEI) released slowly into the mucosa’s salivary layer. Silver and PEI were blended at 140°C, then bound to PLA. The Ag-PEI complex was characterised by dynamic light scattering and transmission electron microscopy, and the Ag-PEI-PLA composite was examined by atomic force microscopy and micro-computed tomography. The characteristic was measured by atomic force microscopy (AFM) and micro-computed tomography (micro-CT). The quantity of water-soluble Ag-PEI complex released from the composite film was measured with gravimetry. The cellular physiological effects were analysed by impedimetry and computer-based morphometry using human gingival epithelial cells. A real-time cell proliferation assay revealed moderate toxic effects of Ag-PEI on the epithelium. The viscous Ag-PEI-PLA solution produced could be applied as a thin film on methacrylate surfaces. Active antimicrobial components (Ag, PEI, and Ag-PEI) were released from the hard, tightly bound Ag-PEI-PLA coating. This study’s findings verified the applicability of the antimicrobial Ag-PEI-PLA composite for coating the inner surfaces of acrylate dentures. Owing to the well-known antimicrobial effects of silver and PEI and the supplementary effects of chloroform, this composite provides a new therapeutic method for denture stomatitis that can be easily performed by dentists.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Antimicrobial Silver-Polyethyleneimine-Polylactic Acid Polymer Composite Film for Coating Methacrylate-Based Denture Surfaces

Géczi

Hermann

Kőhidai

et al. 2018

Journal of Nanomaterials

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“…Typical SEM image of AgNPs with spherical shape was shown in figure 2. Zhiguo Liu et al [29] showed that the PEI-functionalized Ag nanoparticles were positively charged. Moreover, the Ag colloids exhibited stronger antibacterial activity in the bactericidal test.…”

Section: Dropping Methods Of Agnps Depositionmentioning

confidence: 99%

Synthesis of positively and negatively charged silver nanoparticles and their deposition on the surface of titanium

Sharonova

Loza

Surmenev

et al. 2016

IOP Conf. Ser.: Mater. Sci. Eng.

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“…The crystal morphology, reflecting the internal structure, depends on the relative growth rate of each crystal plane. Since the formation of Ag NPs does not be suppressed from any orientation in the reaction system, the Ag NPs are spherical in shape [28,29].…”

Section: Structure and Morphology Of Qcs/ag Nps Compositementioning

confidence: 99%

Quaternized chitosan/silver nanoparticles composite as a SERS substrate for detecting tricyclazole and Sudan I

Chen

Shen

Luo

et al. 2015

Applied Surface Science

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Synthesis of polyethylenimine (PEI) functionalized silver nanoparticles by a hydrothermal method and their antibacterial activity study

Cited by 85 publications

References 37 publications

Antimicrobial Silver-Polyethyleneimine-Polylactic Acid Polymer Composite Film for Coating Methacrylate-Based Denture Surfaces

Antimicrobial Silver-Polyethyleneimine-Polylactic Acid Polymer Composite Film for Coating Methacrylate-Based Denture Surfaces

Synthesis of positively and negatively charged silver nanoparticles and their deposition on the surface of titanium

Quaternized chitosan/silver nanoparticles composite as a SERS substrate for detecting tricyclazole and Sudan I

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