APTES Functionalized Iron Oxide–Silver Magnetic Hetero-Nanocomposites for Selective Capture and Rapid Removal of Salmonella enteritidis from Aqueous Solution

Trang, Vu Thi; Dinh, Ngo Xuan; Hoang, Lan; Tam, Le Thi; Huy, Trần Quang; Tuấn, Phạm Anh; Phan, Vu Ngoc; Le, Anh‐Tuan

doi:10.1007/s11664-018-6135-7

Cited by 9 publications

(4 citation statements)

References 37 publications

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“…The signature observed at 2982 cm −1 was due to the asymmetric stretching of the -CH 2 bond on the amino-propyl group [43]. The peak at 1615 cm −1 was ascribed to -NH 2 bending mode [44,45].…”

Section: Resultsmentioning

confidence: 97%

“…There are reports on the use of magnetic nanomaterials as a promising platform for the fast and sensitive detection of bacterial pathogens. Trang et al [43] have utilized a two-step synthetic technique consisting of co-precipitation and hydrothermal reaction, followed by functionalization steps with APTES to detect the bacteria Salmonella enteritidis. They have shown that the conjugates are promising for the rapid selective capture and removal of bacterial pathogens from aqueous environments.…”

Section: Resultsmentioning

confidence: 99%

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Detection of bacterial contaminants via frequency manipulation of amino-groups functionalized Fe₃O₄ nanoparticles based resonant sensor

Kale¹,

Chavan²,

Bhapkar³

et al. 2022

Biomed. Phys. Eng. Express

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Bacterial infections have a large impact on public health. Through this study, we report on the development of complementary split-ring resonators (CSRR) supplemented by functionalized nanoparticles to detect bacteria in the aqueous medium. Iron oxide (Fe3O4) nanoparticles were functionalized with amino groups using (3-aminopropyl) triethoxysilane (APTES) to form (APTES@Fe3O4) nanoparticles, which have a specific affinity towards the bacterial species. This affinity was evaluated using the Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) bacterial species. The resonant sensor was tuned at 430 MHz and the CSRR sensor bed was further activated using APTES@Fe3O4 nanoparticles. Bacterial detection was studied over a range of concentrations from 2.66 x 109 cells to 2.66 x 108 cells. The sensor actively responded to small changes in bacterial concentration, showing an overall shift in resonance frequency of ~ 44 MHz (~ 40 MHz / cell count) for E. coli and ~ 55 MHz (50.43 MHz / cell count) for S. aureus. Dextran sulphate and Chitosan were used as the references. The magnetic character of the conjugated system exhibited strong interaction of the bacterial species with APTES@Fe3O4, justifying the high selectivity towards these species. This demonstrates the feasibility of a sensitive, fast, portable device, against the traditionally used time-consuming bio-assays.

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Detection of bacterial contaminants via frequency manipulation of amino-groups functionalized Fe₃O₄ nanoparticles based resonant sensor

Kale¹,

Chavan²,

Bhapkar³

et al. 2022

Biomed. Phys. Eng. Express

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“…The antibody conjugated Fe 3 O 4 -Ag@APTES hetero-nanocomposites were analyzed Salmonella enteritidis at a much lower concentration [196]. Magnetic materials revealed 91% efficiency for elimination of Salmonella enteritidis from liquid medium within 20 min.…”

Section: Removal Of Pathogenic Micro-organismsmentioning

confidence: 99%

Review on Recent Developments in Bioinspired-Materials for Sustainable Energy and Environmental Applications

et al. 2022

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Nature has always inspired innovative minds for development of new designs. Animals and plants provide various structures with lower density, more strength and high energy sorption abilities that can incite the development of new designs with significant properties. By observing the important functions of biological structures found in nature, scientists have fabricated structures by bio-inspiration that have been proved to exhibit a significant improvement over traditional structures for their applications in the environmental and energy sector. Bio-fabricated materials have shown many advantages due to their easy synthesis, flexible nature, high performance and multiple functions as these can be used in light harvesting systems, batteries, biofuels, catalysis, purification of water, air and environmental monitoring. However, there is an urgent need for sensitive fabrication instruments that can synthesize bio-inspired structures and convert laboratory scale synthesis into large scale production. The present review highlights recent advances in synthesis of bio-inspired materials and use of hierarchical nanomaterials generated through biomolecular self-assembly for their use in removal of environmental contaminants and sustainable development.

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“…This synergistic antibacterial effect iron nanoparticle is consistent with the mechanism explained elsewhere. 18,70,71 The zone inhibition diameter (see Table 5) reveals that the PET-SH-Fe and PET-NH 2 -Fe membranes were more robust compared to PET-Si-NH 2 -Fe. This can be due to the presence of a considerable amount of stability, the mass of iron nanoparticles, ner particles size and with high surface area 72 and antibacterial behaviour of PAMAM dendrimer.…”

Section: Analysis Of Antibacterial Activitiesmentioning

confidence: 99%

Modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application

et al. 2020

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APTES Functionalized Iron Oxide–Silver Magnetic Hetero-Nanocomposites for Selective Capture and Rapid Removal of Salmonella enteritidis from Aqueous Solution

Cited by 9 publications

References 37 publications

Detection of bacterial contaminants via frequency manipulation of amino-groups functionalized Fe₃O₄ nanoparticles based resonant sensor

Detection of bacterial contaminants via frequency manipulation of amino-groups functionalized Fe₃O₄ nanoparticles based resonant sensor

Review on Recent Developments in Bioinspired-Materials for Sustainable Energy and Environmental Applications

Modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application

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APTES Functionalized Iron Oxide–Silver Magnetic Hetero-Nanocomposites for Selective Capture and Rapid Removal of Salmonella enteritidis from Aqueous Solution

Cited by 9 publications

References 37 publications

Detection of bacterial contaminants via frequency manipulation of amino-groups functionalized Fe3O4 nanoparticles based resonant sensor

Detection of bacterial contaminants via frequency manipulation of amino-groups functionalized Fe3O4 nanoparticles based resonant sensor

Review on Recent Developments in Bioinspired-Materials for Sustainable Energy and Environmental Applications

Modification of fibrous membrane for organic and pathogenic contaminants removal: from design to application

Contact Info

Product

Resources

About

Detection of bacterial contaminants via frequency manipulation of amino-groups functionalized Fe₃O₄ nanoparticles based resonant sensor

Detection of bacterial contaminants via frequency manipulation of amino-groups functionalized Fe₃O₄ nanoparticles based resonant sensor