Comparison of antibacterial properties between chitosan stabilized silver and zinc oxide nanoparticles immobilized on white silica beads

Hidayat, Muhammad; Siregar, Tongku Nizwan; Suhartono, Suhartono; Hayati, Zinatul; Bakar, Noor Hana Hanif Abu

doi:10.1016/j.sajce.2023.05.001

Cited by 6 publications

(2 citation statements)

References 57 publications

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“…Various factors influence particle size during synthesis, including solution temperature, salt concentration, reducing agent, and reaction time. Metal nanoparticles encompass a range of elements, such as silver, zinc, copper, iron, and gold [11]. Silver was employed for this study.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Silver Nanoparticles from Extract of Epiphytic Shrub Leaves (Ficus heteropleura Blume) on Oil Palm Plant and Evaluation of Their Antibacterial Activity Against Escherichia coli

Rati,

Perdana,

Prasetya

2024

J. Kim. Sains Apl.

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Silver nanoparticles are silver metal particles with a size of less than 100 nm. Extract of epiphytic shrub leaves (Ficus heteropleura Blume) serves as a bioreductant in producing silver nanoparticles, which are utilized for their antibacterial properties against Escherichia coli. This study aims to synthesize silver nanoparticles and assess their activity against Escherichia coli. Silver nanoparticles (AgNPs) were synthesized using the green synthesis method with Ficus heteropleura leaf extract with silver nitrate (AgNO3). AgNPs were synthesized using a 1 mM solution of AgNO3 and different concentrations (2, 4, 6, 8, and 10%) of Ficus heteropleura extract. The AgNPs were characterized using UV-Vis spectrophotometer, FTIR, and PSA. UV-Vis analysis revealed that AgNPs at concentrations ranging from 2% to 10% exhibited absorbance peaks within the wavelength range of 201.2–473.5 nm. FTIR analysis identified functional groups such as OH, CH, C=C, C≡C, C≡N, and CO, which played a role in reducing silver nanoparticles. The size distribution of AgNPs was determined, with AgNPs synthesized at a concentration of 6% exhibiting a size range of 1–100 nm, constituting 40.77% of the total. For AgNPs synthesized at concentrations of 8% and 10%, the percentage of nanoparticles in the 1–100 nm size range was found to be 26.845% and 1.28%, respectively. The antibacterial activity of AgNPs at concentrations of 6% and 8% against Escherichia coli demonstrated moderate effectiveness.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Silver Nanoparticles from Extract of Epiphytic Shrub Leaves (Ficus heteropleura Blume) on Oil Palm Plant and Evaluation of Their Antibacterial Activity Against Escherichia coli

Rati,

Perdana,

Prasetya

2024

J. Kim. Sains Apl.

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“…In this regard, modifying IPEC by including an additional low-molecular-weight biocidal agent, for example, metal nano particles or metal oxides, is proposed. Among the metals, nano-Ag, nano-Au, nano-Cu, and nano-Se are often considered as an additive [ 27 , 28 ]. Silver and its oxide have proven themselves especially widely.…”

Section: Introductionmentioning

confidence: 99%

Ag2O-Containing Biocidal Interpolyelectrolyte Complexes on Glass Surfaces—Adhesive Properties of the Coatings

Pigareva,

Paltsev,

Marina

et al. 2023

Polymers

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Biocidal coatings are of great interest to the healthcare system. In this work, the biocidal activity of coatings based on a complex biocide containing polymer and inorganic active antibacterial components was studied. Silver oxide was distributed in a matrix of a positively charged interpolyelectrolyte complex (IPEC) of polydiallyldimethylammonium chloride (PDADMAC) and sodium polystyrene sulfonate (PSS) using ultrasonic dispersion, forming nanoparticles with an average size of 5–6 nm. The formed nanoparticles in the matrix are not subject to agglomeration and changes in morphology during storage. It was found that the inclusion of silver oxide in a positively charged IPEC allows a more than 4-fold increase in the effectiveness of the complex biocide against E. coli K12 in comparison with the biocidal effect of PDADMAC and IPEC. Polycation, IPEC, and the IPEC/Ag2O ternary complex form coatings on the glass surface due to electrostatic adsorption. Adhesive and cohesive forces in the resulting coatings were studied with micron-scale coatings using dynamometry. It was found that the stability of the coating is determined primarily by adhesive interactions. At the macro level, it is not possible to reliably identify the role of IPEC formation in adhesion. On the other hand, use of the optical tweezers method makes it possible to analyze macromolecules at the submicron scale and to evaluate the multiple increase in adhesive forces when forming a coating from IPEC compared to coatings from PDADMAC. Thus, the application of ternary IPEC/Ag2O complexes makes it possible to obtain coatings with increased antibacterial action and improved adhesive characteristics.

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Synthesis of Antimicrobial and Biodegradable Polyhydroxybutyrate Films Embedded with Zinc Oxide NPs by Casting Method

Vallée-Bastien,

Tran,

Ladhari

et al. 2024

Springer Proceedings in Earth and Environmental Sciences

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Comparison of antibacterial properties between chitosan stabilized silver and zinc oxide nanoparticles immobilized on white silica beads

Cited by 6 publications

References 57 publications

Synthesis of Silver Nanoparticles from Extract of Epiphytic Shrub Leaves (Ficus heteropleura Blume) on Oil Palm Plant and Evaluation of Their Antibacterial Activity Against Escherichia coli

Synthesis of Silver Nanoparticles from Extract of Epiphytic Shrub Leaves (Ficus heteropleura Blume) on Oil Palm Plant and Evaluation of Their Antibacterial Activity Against Escherichia coli

Ag2O-Containing Biocidal Interpolyelectrolyte Complexes on Glass Surfaces—Adhesive Properties of the Coatings

Synthesis of Antimicrobial and Biodegradable Polyhydroxybutyrate Films Embedded with Zinc Oxide NPs by Casting Method

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