Detection of Cobalt Ion Based on Surface Plasmon Resonance of L-Cysteine Functionalized Silver Nanotriangles

Koochak, Niloofar Namazi; Rahbarimehr, Erfan; Amirjani, Amirmostafa; Haghshenas, Davoud Fatmehsari

doi:10.1007/s11468-020-01289-2

Cited by 12 publications

(2 citation statements)

References 48 publications

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“…This phenomenon is known as surface plasmon resonance (SPR) and has plenty of applications in many disciplines, from sensing to novel therapy approaches. [20][21][22][23][24][25][26][27] The main advantage of plasmonic nanostructures as photosensitizers compared to the other nanomaterials is the tunability of the SPR phenomenon in a broad wavelength range. From an engineering point of view, surface plasmon resonance is highly dependent on the morphology, size, and composition of the plasmonic nanostructure, which can give one the ability to control the wavelength of light-matter interaction.…”

Section: Mechanism Of Nanophotosensitizersmentioning

confidence: 99%

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Plasmon-enhanced nano-photosensitizers: game-changers in photodynamic therapy of cancers

et al. 2023

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Section: Mechanism Of Nanophotosensitizersmentioning

confidence: 99%

“…This phenomenon is known as surface plasmon resonance (SPR) and has plenty of applications in many disciplines, from sensing to novel therapy approaches. 20–27…”

Section: Mechanism Of Nano-photosensitizersmentioning

confidence: 99%

Plasmon-enhanced nano-photosensitizers: game-changers in photodynamic therapy of cancers

et al. 2023

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Recent advances in functionalization of plasmonic nanostructures for optical sensing

Amirjani

Rahbarimehr

2021

Microchim Acta

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Optical Ammonia-Sensing Probe Based on Surface-Plasmon Resonance of Silver-Nanoparticle-Decorated Superparamagnetic Dendritic Nanoparticles

et al. 2022

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Ammonia is a serious contaminant of aquaculture water due to its continuous release into the water environment during the biological processes of aquatic animals. Ammonia accumulation in water has negative environmental impacts, including eutrophication and the death of aquatic organisms. Therefore, sensitive and accurate determination of ammonia is an urgent need, especially in pisciculture systems. Here, we report the fabrication of a novel magnetic–hyperbranched nanomaterial-based ammonia-sensing probe for the fast and sensitive determination of ammonia in water. The proposed probe is composed of poly(amidoamine) (PAMAM)-coated superparamagnetic iron oxide nanoparticles (SPIONs) decorated with silver nanoparticles. Changing the ammonia concentration is associated with a corresponding change in the surface plasmon resonance property of silver nanoparticles. The proposed nanosystem was characterized with FTIR spectroscopy, SEM imaging, energy-dispersive X-ray (EDX) analysis, TEM imaging, X-ray diffractometry (XRD), and vibrating sample magnetometry (VSM). The TEM images showed a homogenous and uniform distribution of the nanoparticles with an average nanoparticle size of 200 nm, while the surface silver nanoparticles have an average particle size of 10–50 nm. The proposed optical ammonia sensor was successfully used to determine the concentration of ammonia in water samples by measuring the change in the solution absorbance at 428 nm. The obtained results revealed high recovery values (96.3–104.7%) and very low detection (LOD = 5.69 mg/L) and quantification (LOQ = 18.96 mg/L) limits. The standard plot is linear in the concentration range of 10–50 mg/L with an r2 value of 0.9980. Sandell’s sensitivity of the most promising sensor (NP-III) among the investigated systems was found to be 0.15 µg/cm2, which indicates high sensitivity.

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Detection of Cobalt Ion Based on Surface Plasmon Resonance of L-Cysteine Functionalized Silver Nanotriangles

Cited by 12 publications

References 48 publications

Plasmon-enhanced nano-photosensitizers: game-changers in photodynamic therapy of cancers

Plasmon-enhanced nano-photosensitizers: game-changers in photodynamic therapy of cancers

Recent advances in functionalization of plasmonic nanostructures for optical sensing

Optical Ammonia-Sensing Probe Based on Surface-Plasmon Resonance of Silver-Nanoparticle-Decorated Superparamagnetic Dendritic Nanoparticles

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