Colorimetric and bare-eye detection of alkaline earth metal ions based on the aggregation of silver nanoparticles functionalized with thioglycolic acid

Wu, Xiaoyan; Tang, Wanxin; Hou, Cong; Zhang, Chao; Zhu, Ning

doi:10.1007/s00604-014-1185-x

Cited by 26 publications

(5 citation statements)

References 28 publications

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“…The LOD of the method was 0.003 μM by UV‐visible spectrometer, whereas LOD of visual read‐out was observed at 0.005 μM, which can be easily observed with naked‐eye. The LOD of the probe was lower than that of the other visual read‐out assays and the performance of the sensor is more compatible with sophisticated analytical techniques (Table ). Thus, it can be acted as user friendly probe for the colorimetric recognition of Ba 2+ ion in environmental and biological systems at low volume samples.…”

Section: Resultsmentioning

confidence: 99%

“…We also explored the potential use of 6‐mercaptonicotinic acid (MNA) and melamine (MA) as cooperative ligands for bifunctionalization of Ag NPs for colorimetric identification of Cr 3+ and Ba 2+ ions . Wu's group functionalized Ag NPs with thioglycolic acid (TGA) for a facile and rapid visual readout of four alkaline earth metal ions including Ba 2+ ion . Similarly, G‐quadruplex DNA in α‐hemolysin nanopore‐based colorimetric method was developed for selective and sensitive simultaneous sensing of Pb 2+ and Ba 2+ ions .…”

Section: Introductionmentioning

confidence: 99%

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Selective and Sensitive Colorimetric Recognition of Ba²⁺ Ion Using Guanine‐Functionalized Silver Nanoparticles

et al. 2018

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Herein, a novel silver nanoparticles (Ag NPs) based colorimetric method was explored for selective recognition of Ba2+ ion in water samples using guanine‐Ag NPs as a sensor. The colorimetric recognition strategy was based on the significant change in the surface plasmon resonance (SPR) band of guanine‐Ag NPs with Ba2+ ion. The electron‐rich groups (‐NH2, ‐CO‐NH and ‐NH‐) on the surfaces of guanine‐Ag NPs allow to act as an excellent probe for selective colorimetric recognition of Ba2+ ion. The absorption ratio at A504/A420 was shown linear response with Ba2+ ion concentration (0.005‐0.5 μM), with limit of detection of 0.003 μM (3.0 nM). The color change of guanine‐Ag NPs in water samples is ascertained facile, rapid, selective and sensitive recognition of Ba2+ ion at trace levels (nanomolar) without use of sophisticated analytical technique. The developed probe simplifies the sample preparations and provides a rapid analytical tool for sensing of Ba2+ ion environmental samples at minimal volume of samples.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Selective and Sensitive Colorimetric Recognition of Ba²⁺ Ion Using Guanine‐Functionalized Silver Nanoparticles

et al. 2018

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“…The detection methodology based on the statistical algorithm and chemometrics method was proposed for qualitative and quantitative analysis of heavy metals . Different colorimetric and electrochemical assays have been reported for the detection of alkali and alkaline earth metal ions,– and heavy metal ions , . Thus, innovations in sensor technology by employing nanomaterials continues to overcome industrial challenges for food and water safety.…”

Section: Nanotechnology‐based Sensing Opportunities In Agriculturementioning

confidence: 99%

Recent developments in nanotechnology transforming the agricultural sector: a transition replete with opportunities

et al. 2017

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The applications and benefits of nanotechnology in the agricultural sector have attracted considerable attention, particularly in the invention of unique nanopesticides and nanofertilisers. The contemporary developments in nanotechnology are acknowledged and the most significant opportunities awaiting the agriculture sector from the recent scientific and technical literature are addressed. This review discusses the significance of recent trends in nanomaterial-based sensors available for the sustainable management of agricultural soil, as well as the role of nanotechnology in detection and protection against plant pathogens, and for food quality and safety. Novel nanosensors have been reported for primary applications in improving crop practices, food quality, and packaging methods, thus will change the agricultural sector for potentially better and healthier food products. Nanotechnology is well-known to play a significant role in the effective management of phytopathogens, nutrient utilisation, controlled release of pesticides, and fertilisers. Research and scientific gaps to be overcome and fundamental questions have been addressed to fuel active development and application of nanotechnology. Together, nanoscience, nanoengineering, and nanotechnology offer a plethora of opportunities, proving a viable alternative in the agriculture and food processing sector, by providing a novel and advanced solutions. © 2017 Society of Chemical Industry.

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“…We chose the (AgNps) as they are inexpensive and have high extinction for colorimetric detection [ 10 ], special optical and electronic properties [ 11 ], and they are widely used in bio-sensing, photonics, and in antimicrobial applications as the manufacturing of biodegradable surgical sutures [ 12 ]. Additionally, new insights on the application of AgNps were applied in drug delivery[ 13 ], glucose determination [ 14 ], DNA detection [ 15 ], analysis of drugs [ 16 – 18 ], heavy metal ions [ 19 , 20 ], anions [ 10 , 21 ], and cations [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Implementation of green-assessed nanotechnology and quality by design approach for development of optical sensor for determination of tobramycin in ophthalmic formulations and spiked human plasma

El-Maraghy,

Medhat,

Hathout

et al. 2024

BMC Chemistry

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A fast eco-friendly colorimetric method was developed for the determination of Tobramycin in drug substance, ophthalmic formulations, and spiked human plasma using silver nanoparticles optical sensor. Even though tobramycin is non-UV–visible absorbing, the developed method is based on measuring the absorbance quenching of silver nanoparticles resulting from the interaction with tobramycin. Different factors affecting the absorbance intensity were studied as; silver nanoparticle concentration, pH, buffer type, and reaction time using quality by design approach. Validation of the proposed method was performed according to ICH guidelines and was found to be accurate, precise, and sensitive. The linearity range of tobramycin was 0.35–4.0 μg/mL. The optical sensor was successfully applied for the determination of Tobramycin in ophthalmic formulations and spiked human plasma without pre-treatment. Additionally, the binding between Tobramycin and PVP- capped silver nanoparticles was studied using molecular docking software. The method was assessed and compared to colorimetric reported methods for the green character using Green Analytical Procedure Index (GAPI) and Analytical GREEnness calculator (AGREE) tools and found to be greener.

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Colorimetric and bare-eye detection of alkaline earth metal ions based on the aggregation of silver nanoparticles functionalized with thioglycolic acid

Cited by 26 publications

References 28 publications

Selective and Sensitive Colorimetric Recognition of Ba²⁺ Ion Using Guanine‐Functionalized Silver Nanoparticles

Selective and Sensitive Colorimetric Recognition of Ba²⁺ Ion Using Guanine‐Functionalized Silver Nanoparticles

Recent developments in nanotechnology transforming the agricultural sector: a transition replete with opportunities

Implementation of green-assessed nanotechnology and quality by design approach for development of optical sensor for determination of tobramycin in ophthalmic formulations and spiked human plasma

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Colorimetric and bare-eye detection of alkaline earth metal ions based on the aggregation of silver nanoparticles functionalized with thioglycolic acid

Cited by 26 publications

References 28 publications

Selective and Sensitive Colorimetric Recognition of Ba2+ Ion Using Guanine‐Functionalized Silver Nanoparticles

Selective and Sensitive Colorimetric Recognition of Ba2+ Ion Using Guanine‐Functionalized Silver Nanoparticles

Recent developments in nanotechnology transforming the agricultural sector: a transition replete with opportunities

Implementation of green-assessed nanotechnology and quality by design approach for development of optical sensor for determination of tobramycin in ophthalmic formulations and spiked human plasma

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Selective and Sensitive Colorimetric Recognition of Ba²⁺ Ion Using Guanine‐Functionalized Silver Nanoparticles

Selective and Sensitive Colorimetric Recognition of Ba²⁺ Ion Using Guanine‐Functionalized Silver Nanoparticles