Silver Nanoparticles as a New Colorimetric Probe for Determination of Oxalic Acid in Urine

2016 ◽  
Vol 14 (9) ◽  
pp. 906-912 ◽  
Author(s):  
Parisa Fateh Basharzad ◽  
Khalil Farhadi ◽  
Mehrdad Forough ◽  
Rahim Molaei
Keyword(s):  
Silver Nanoparticles ◽  
Oxalic Acid ◽  
Colorimetric Probe

scholarly journals Chlortetracycline-Functionalized Silver Nanoparticles as a Colorimetric Probe for Aminoglycosides: Ultrasensitive Determination of Kanamycin and Streptomycin

Nanomaterials ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 997 ◽  
Author(s):  
Ganesh Dattatraya Saratale ◽  
Rijuta Ganesh Saratale ◽  
Gajanan Ghodake ◽  
Surendra Shinde ◽  
Dae-Young Kim ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Color Change ◽  
Limit Of Detection ◽  
Colorimetric Assay ◽  
Uv Spectroscopy ◽  
Aminoglycoside Antibiotics ◽  
Sensing Element ◽  
Colorimetric Probe ◽  
Aqueous Conditions

Aminoglycosides (AMGs) have been extensively used to treat infectious diseases caused by Gram-negative bacteria in livestock and humans. A selective and sensitive colorimetric probe for the determination of streptomycin and kanamycin was proposed based on chlortetracycline-coated silver nanoparticles (AgNPs–CTC) as the sensing element. Almost all of the tested aminoglycoside antibiotics can rapidly induce the aggregation of AgNPs, along with a color change from yellow to orange/red. The selective detection of aminoglycoside antibiotics, including tobramycin, streptomycin, amikacin, gentamicin, neomycin, and kanamycin, with other types of antibiotics, can be achieved by ultraviolet (UV) spectroscopy. This developed colorimetric assay has ability to detect various AMGs using in-depth surface plasmon resonance (SPR) studies. With this determination of streptomycin and kanamycin was achieved at the picomolar level (pM) by using a UV–visible spectrophotometer. Under aqueous conditions, the linear range of the colorimetric sensor for streptomycin and kanamycin was 1000–1,1000 and 120–480 pM, respectively. The corresponding limit of detection was 2000 pM and 120 pM, respectively. Thus, the validated dual colorimetric and ratiometric method can find various analytical applications for the ultrasensitive and rapid detection of AMG antibiotics in water samples.

Colorimetric determination of phenytoin using indoxyl sulfate capped silver nanoparticles

2019 ◽  
Vol 11 (26) ◽  
pp. 3324-3330 ◽  
Author(s):  
Maryam Khoubnasabjafari ◽  
Rana Salari ◽  
Azam Samadi ◽  
Vahid Jouyban-Gharamaleki ◽  
Abolghasem Jouyban
Keyword(s):  
Silver Nanoparticles ◽  
Indoxyl Sulfate ◽  
Colorimetric Determination ◽  
Colorimetric Probe

A simple and sensitive colorimetric probe based on aggregation of indoxyl sulfate capped silver nanoparticles was proposed for the detection of trace amounts of phenytoin.

A novel colorimetric sensor for sensitive determination of R-citalopram based on the plasmonic properties of silver nanoparticles

2017 ◽  
Vol 41 (22) ◽  
pp. 13881-13888 ◽  
Author(s):  
Javad Tashkhourian ◽  
Mina Afsharinejad
Keyword(s):  
Aqueous Solution ◽  
Silver Nanoparticles ◽  
Colorimetric Method ◽  
Colorimetric Sensor ◽  
Colorimetric Probe ◽  
Sensitive Determination ◽  
Inherent Chirality ◽  
Visual Differentiation

A simple and reliable colorimetric method for visual differentiation between the S-citalopram and R-citalopram enantiomers in aqueous solution based on the inherent chirality of silver nanoparticles as a colorimetric probe was presented.

An insight into the determination of size and number concentration of silver nanoparticles in blood using single particle ICP-MS (spICP-MS): Feasibility of application to samples relevant to in vivo toxicology studies

2021 ◽  
Author(s):  
Isabel Abad-Álvaro ◽  
Diego Leite ◽  
Dorota Bartczak ◽  
Susana Cuello ◽  
Beatriz Gomez-Gomez ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Single Particle ◽  
Number Concentration ◽  
Biological Matrices ◽  
Icp Ms ◽  
Toxicological Studies ◽  
Insight Into

Toxicological studies concerning nanomaterials in complex biological matrices usually require a carefully designed workflow that involves handling, transportation and preparation of a large number of samples without affecting the nanoparticle...

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