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

He, Yunfei; Liao, Lifu; Xu, Canhui; Wu, Ru‐Rong; Li, Shijun

doi:10.1007/s00604-014-1350-2

Cited by 20 publications

(7 citation statements)

References 36 publications

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“…In a more recent paper, RLS was exploited for direct detection of ATP in aqueous solutions in the absence of any prior separation procedure 142 . The materials involved were a binuclear uranyl complex - bis-uranyl-bis-sulfosalophen (BUBSS) and ATP aptamer-coated gold nanoparticle (Apt-AuNP) probes.…”

Section: Other Optical Atp Aptasensorsmentioning

confidence: 99%

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Optical Aptasensors for Adenosine Triphosphate

Ng¹,

Lim²,

Ma³

et al. 2016

Theranostics

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Nucleic acids are among the most researched and applied biomolecules. Their diverse two- and three-dimensional structures in conjunction with their robust chemistry and ease of manipulation provide a rare opportunity for sensor applications. Moreover, their high biocompatibility has seen them being used in the construction of in vivo assays. Various nucleic acid-based devices have been extensively studied as either the principal element in discrete molecule-like sensors or as the main component in the fabrication of sensing devices. The use of aptamers in sensors - aptasensors, in particular, has led to improvements in sensitivity, selectivity, and multiplexing capacity for a wide verity of analytes like proteins, nucleic acids, as well as small biomolecules such as glucose and adenosine triphosphate (ATP). This article reviews the progress in the use of aptamers as the principal component in sensors for optical detection of ATP with an emphasis on sensing mechanism, performance, and applications with some discussion on challenges and perspectives.

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Section: Other Optical Atp Aptasensorsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Optical Aptasensors for Adenosine Triphosphate

Ng¹,

Lim²,

Ma³

et al. 2016

Theranostics

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“…Three analogue ultrapure water samples were tested by adding different concentrations of chemicals used in the selectivity study. The first contained 100 nM P4, 50 nM E2, 100 nM E3, 100 nM o,p'-DDT, 100 nM DES, 100 nM Besides, urine samples which were diluted with ultrapure water and tap water samples were spiked with different concentrations of P4 (50 nM, 100 nM, 400 nM, 800 nM) respectively, and then texted by this aptasensor [29,30].…”

Section: Application In Real Samplesmentioning

confidence: 99%

A label-free colorimetric progesterone aptasensor based on the aggregation of gold nanoparticles

Zhang

Xia

et al. 2016

Microchim Acta

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The authors describe an aptasensor for the detection of the gonadal hormone progesterone (P4) in aqueous solution. Gold nanoparticles (AuNPs) were coated with a P4-specific aptamer, and such particles do not aggregate in presence of NaCl due to the presence of the aptamer coating. If, however, progesterone is added, it will bind to the aptamer and release it from the surface. The uncoated AuNPs, on addition of NaCl, will aggregate and a color change from red (520 nm) to blue (650 nm) can be visually detected or photometrically quantified. The ratio of the absorbances at 650 and 520 nm is linearly related to the P4 concentration in the range from 2.6 to 800 nM. The complete detection range extends from 2.6 to 1400 nM, and the detection limit is 2.6 nM. Water containing various potential interferents, as well as tap water and urine, were spiked with P4 and the recoveries of P4 are in the range of 89.7-117.5%, 84.4-115.0% and 94.7-118.8%, respectively. This assay has a large potential with respect to the visual and instrumental determination of P4 in aquatic environment and urine.

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“…Therefore, a type of RLS analytical methods can be established based on the formation of SPs. In recent years, based on the facts that uranyl can react with two different ligands to form a SP, a series of RLS methods for the determination of uranium, manganese, fluoride, ATP and fructose 1,6-bisphosphate have been developed [26][27][28][29][30]. These RLS methods have the advantages of high sensitivity, good selectivity and low cost.…”

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

Cited by 20 publications

References 36 publications

Optical Aptasensors for Adenosine Triphosphate

Optical Aptasensors for Adenosine Triphosphate

A label-free colorimetric progesterone aptasensor based on the aggregation of gold nanoparticles

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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