One-step gold nanoparticle size-shift assay using synthetic binding proteins and dynamic light scattering

Mahatnirunkul, Thanisorn; Tomlinson, Darren; McPherson, Michael J.; Millner, Paul A.

doi:10.1016/j.snb.2022.131709

Cited by 6 publications

(3 citation statements)

References 157 publications

(249 reference statements)

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“…Similar results were reported by Sun et al [ 25 ]. It should be noted that the bathochromic shift of AuNP results in a large displacement towards the red region of the Localized Surface Plasmon Resonance (LSPR) peak [ 26 ] Furthermore, Mahatnirunkul et al [ 27 ]. affirmed that when the analyte of interest binds to the surface of AuNPs, the Localized Surface Plasmon Resonance (LSPR) spectrum will shift to a longer wavelength.…”

Section: Resultsmentioning

confidence: 99%

Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage

Pierre,

Bruna Bugueño,

Leyton Bongiorno

et al. 2024

Polymers

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In this work, a colorimetric indicator based on gold nanoparticles (AuNP) and a biodegradable and eco-friendly polymer (sodium alginate, Alg.), was developed for the real-time detection of fish spoilage products. The AuNPs and the colorimetric indicator were characterized using UV-VIS, FTIR spectroscopies, TGA, DSC, XRD, TEM, and colorimetry. The UV-VIS spectrum and TEM showed the successful synthesis, the spherical shape, and the size of AuNPs. The results indicated color changes of the indicator in packaged fish on day 9 of storage at a refrigerated temperature (5 °C. These results showed the successful application of the colorimetric indicator in the detection of TVB-N in packaged fish.

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Section: Resultsmentioning

confidence: 99%

Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage

Pierre,

Bruna Bugueño,

Leyton Bongiorno

et al. 2024

Polymers

View full text Add to dashboard Cite

show abstract

“…It should be noted that the bathochromic shift of AuNP results in a large displacement towards the red region of the Localized Surface Plasmon Resonance (LSPR) peak [28]. Furthermore, Mahatnirunkul et al [29,30] affirmed that when the analyte of interest binds to the surface of AuNPs, the Localized Surface Plasmon Resonance (LSPR) spectrum will shift to a longer wavelength. Additionally, the aggregation of gold nanoparticles, after their contact with ethylenediamine occurred by the interaction of attractive van der Waals (VA) and repulsive Coulomb (VR) forces.…”

Section: Uv-visible Spectroscopymentioning

confidence: 99%

Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage

Pierre,

Bruna,

Bongiorno

et al. 2023

Preprint

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In this work, a colorimetric indicator based on gold nanoparticles (AuNP) and a biodegradable and eco-friendly polymer (sodium alginate, Alg.), has been developed, for the real-time detection of fish spoilage products. AuNP and colorimetric indicator were characterized by: UV-Vis, FTIR spectroscopies, TGA, DSC, XRD, TEM, and colorimetry. The UV-Vis spectrum and TEM showed the successful synthesis, the spherical shape, and the size of AuNPs. Results indicated color changes of the indicator in packaged fish on day 9 of storage at refrigerated temperature (5ºC). These results showed the successful application of colorimetric indicator in the detection of TVB-N in packaged fish.

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“…In recent years, there has been a growing relationship between biosensing and SPR technology. For instance, Mahatnirunkul et al 18 developed a nano-biosensor by fixing a target-specific biological receptor on gold nanoparticles, in which SPR played a crucial role in characterizing the hemoglobin affinity of the phage display-selected biopanning. Yuan et al 19 developed an unlabelled gold nanoparticle-enhanced surface plasmon resonance (SPR) sensor for ultrasensitive detection of heparin based on the competitive adsorption behavior of heparin and gold nanoparticles on poly(diallyldimethylammonium chloride)-modified optical fiber surfaces.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic nanoprobes on single AuNTs for evaluating and monitoring the dynamic release of 2D drug carriers

Yu,

Wang,

Cai

et al. 2023

J. Mater. Chem. B

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One-step gold nanoparticle size-shift assay using synthetic binding proteins and dynamic light scattering

Cited by 6 publications

References 157 publications

Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage

Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage

Colorimetric Indicator Based on Gold Nanoparticles and Sodium Alginate for Monitoring Fish Spoilage

Plasmonic nanoprobes on single AuNTs for evaluating and monitoring the dynamic release of 2D drug carriers

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