Resonance light scattering and derived techniques in analytical chemistry: past, present, and future

Lu, Wei; Band, Beatriz Susana Fernández; Yu, Yu; Li, Qin Geng; Shang, Jing Chuan; Wang, Chi; Yan, Fang; Tian, Rui; Zhou, Li; Sun, Li; Tang, Yu; Jing, Shu Hua; Huang, Wei; Zhang, Ji Ping

doi:10.1007/s00604-006-0670-2

Cited by 106 publications

(51 citation statements)

References 136 publications

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“…Resonance light scattering (RLS) analytical method is based on the self-assemblies or aggregation of the substances such as the aggregation of gold nanoparticle probes (AuNPs) [11,12]. It has the advantages of simplicity, rapidness and high sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Determination of ATP by resonance light scattering using a binuclear uranyl complex and aptamer modified gold nanoparticles as optical probes

Liao

et al. 2014

Microchim Acta

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We describe a resonance light scattering (RLS) method for the direct detection of adenosine triphosphate (ATP) in aqueous solution without the need for separation. The binuclear uranyl complex bis-uranyl-bis-sulfosalophen (BUBSS) was synthesized by the coordination reaction of two uranyl ions with the ditopic tetradentate ligand bissulfosalophen. In parallel, gold nanoparticles were modified with anti-ATP aptamer (Apt-AuNPs) to serve as RLS probes. The detection scheme is based on the specific reaction of a BUBSS molecule with two ATP molecules to form a linear supramolecule. This, in turn, binds two Apt-AuNPs molecules, and this is accompanied by the aggregation of the Apt-AuNPs and results in a strong RLS signal. A RLS method was developed on this basis that has a linear response to ATP in the 5 to 500 nM concentration range, with a 4.5 nM detection limit under optimal conditions. The method has been successfully applied to the detection of ATP in spiked real samples and gave recoveries between 96.3 and 102.5 %.

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Section: Introductionmentioning

confidence: 99%

Determination of ATP by resonance light scattering using a binuclear uranyl complex and aptamer modified gold nanoparticles as optical probes

Liao

et al. 2014

Microchim Acta

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“…Other than dielectric constant which affects scattering cross-section parameters, the scattering intensity also increased with particle size [22]. When the complex was in a concentration range where enhanced scattering was observed, the complex might aggregated with gold nanoparticles to form a bigger particle clusters in a loose binding manner [23], which then increased the scattering intensity.…”

Section: Reasons Of Enhanced Sprsmentioning

confidence: 99%

A Simple and Sensitive SPRS Method for Trace H2O2 Based on the TiO2+ Complex and Gold Nanoparticles Aggregation Reactions

2009

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In the medium of H 2 SO 4 and in the presence of TiO 2+ , gold nanoparticles in size of 10 nm exhibited a weak surface plasmon resonance scattering (SPRS) peak at 775 nm. Upon addition of trace H 2 O 2 , the yellow complex [TiO(H 2 O 2 )] 2+ formed that cause the gold nanoparticles aggregations to form bigger gold nanoparticle clusters in size of about 900 nm, and the SPRS intensity at 775 nm (I) enhanced greatly. The enhanced intensity ΔI was linear to the H 2 O 2 concentration in the range of 0.025-48.7 μg/mL, with a detection limit of 0.014 μg/mL H 2 O 2 . This SPRS method was applied to determining H 2 O 2 in water samples with satisfactory results.

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“…Resonance light scattering (RLS) methods are efficient analytical methods with the advantages of rapidness, simplicity and high sensitivity [8]. The methods are based on the enlargement of particle volume caused by the assemblies or aggregation of the molecules and/or particles.…”

Section: Introductionmentioning

confidence: 99%

Resonance light scattering detection of uranium based on its reaction with a Schiff base containing tetradentate ligand and phosphate groups to form supramolecular polymer

Liao

et al. 2015

J Radioanal Nucl Chem

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To develop a new resonance light scattering (RLS) method for uranium(VI) detection, we have studied the reaction of uranyl with N,N 0 -bis(pyridoxal phosphate)-o-phenylenediamine (BPPP) that is a Schiff base containing a tetradentate ligand and two phosphate groups. BPPP can chelate uranyl and then self-assemble to form a supramolecular polymer, resulting in a production of strong RLS signal. The RLS method was established based on this fact. The linear range is 0.5-25 ng mL -1 with a detection limit of 0.2 ng mL -1 . The method is simple and has been successfully applied to determine uranium(VI) in environmental water samples.

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Resonance light scattering and derived techniques in analytical chemistry: past, present, and future

Cited by 106 publications

References 136 publications

Determination of ATP by resonance light scattering using a binuclear uranyl complex and aptamer modified gold nanoparticles as optical probes

Determination of ATP by resonance light scattering using a binuclear uranyl complex and aptamer modified gold nanoparticles as optical probes

A Simple and Sensitive SPRS Method for Trace H2O2 Based on the TiO2+ Complex and Gold Nanoparticles Aggregation Reactions

Resonance light scattering detection of uranium based on its reaction with a Schiff base containing tetradentate ligand and phosphate groups to form supramolecular polymer

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