Green biosynthesis of silver nanoparticles and nanomolar detection of p-nitrophenol

Karuppiah, Chelladurai; Palanisamy, Selvakumar; Chen, Shen‐Ming; Emmanuel, R.; Ali, M. Ajmal; Muthukrishnan, P.; Prakash, P.; Al-Hemaid, Fahad M.A.

doi:10.1007/s10008-014-2425-z

Cited by 77 publications

(24 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The correlation coeffecient (R 2 ) was found to be 0.995. The result implies that the overall electrochemical reduction reaction of 4-NP at h-Cr 2 Se 3 /SPCE is a typical diffusion controlled process 38 .…”

Section: Resultsmentioning

confidence: 87%

Hydrothermal Synthesis of Cr2Se3 Hexagons for Sensitive and Low-level Detection of 4-Nitrophenol in Water

Sukanya¹,

Sakthivel²,

Palanisamy

et al. 2018

Sci Rep

Self Cite

View full text Add to dashboard Cite

We report a simple hydrothermal method used for the synthesis of Cr2Se3 hexagons (h-Cr2Se3) and its application towards electrochemical sensing of 4-nitrophenol (4-NP). The formation of h-Cr2Se3 was confirmed by using scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The electrochemical activity of the h-Cr2Se3 modified screen-printed carbon electrode (SPCE) towards 4-NP was studied using cyclic voltammetry (CV) and amperometric i-t techniques. Typically, the obtained results were compared with those for a bare SPCE. The CV result clearly reveals that h-Cr2Se3 modified SPCE has higher catalytic activity towards reduction of 4-NP than bare SPCE. Hence, h-Cr2Se3 modified SPCE was concluded as a viable sensor for sensitive determination of 4-NP. Under optimized conditions, h-Cr2Se3 modified SPCE demonstrates the excellent capacity to detect the 4-NP in a linear range from 0.05 µM to 908.0 µM. The LOD and sensitivity in detection of 4-NP were determined at 0.01 µM and 1.24 µAµM−1 cm−2 respectively. The sensor is highly selective and stable and shows reproducible recovery of 4-NP in domestic supply and river water samples.

show abstract

Section: Resultsmentioning

confidence: 87%

Hydrothermal Synthesis of Cr2Se3 Hexagons for Sensitive and Low-level Detection of 4-Nitrophenol in Water

Sukanya¹,

Sakthivel²,

Palanisamy

et al. 2018

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…In particular, silver nanoparticles (AgNPs) have been predominantly used for different applications such as biomedicine, cosmetics, pharmaceuticals, environmental and electrochemical applications due to their high reactivity, high surface volume ratio and tunable nature of their optical properties 19–25. In addition, bio‐organisms have been utilized in the synthesis of AgNPs for electrochemical sensor applications 25,26. In the present study, Justicia glauca leaf extract has been used as a reducing and stabilizing agent for the synthesis of AgNPs that have been combined with electrochemically activated screen printed carbon electrode (ASPCE) for ultrasensitive detection of DA.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Silver Nanoparticles Decorated on Activated Screen Printed Carbon Electrode and Its Application for Ultrasensitive Detection of Dopamine

et al. 2015

Self Cite

View full text Add to dashboard Cite

In the present study, we report the fabrication of silver nanoparticles (AgNPs) decorated on activated screen printed carbon electrode (ASPCE). The AgNPs were prepared by using Justicia glauca leaf extract as a reducing and stabilizing agent and the ASPCE was prepared by a simple electrochemical activation of screen printed carbon electrode (SPCE). The ASPCE/AgNPs shows a reversible electrochemical behaviour with enhanced response for DA than that of other modified SPCEs. Under optimum conditions, the electrochemical oxidation current response of DA is linear over the concentration range from 0.05 to 45.35 µM. The limit of detection is found as 0.017 µM with a high sensitivity of 7.85 µA µM−1 cm−2.

show abstract

“…The limit of detection is calculated to be 5 nM (S/N = 3). Additionally, the performance of our GR/MIPs sensor was compared with those of other previously reported electrochemical sensors [35,[37][38][39][40][41][42][43] for detecting 4-NP, as shown in Table 1. It can be seen that the GR/ MIPs sensor offered lower detection limit than most of other sensors.…”

Section: Calibration Curvementioning

confidence: 99%

A facile approach for synthesizing molecularly imprinted graphene for ultrasensitive and selective electrochemical detecting 4-nitrophenol

Luo

Cong

Liu

et al. 2015

Analytica Chimica Acta

View full text Add to dashboard Cite

Green biosynthesis of silver nanoparticles and nanomolar detection of p-nitrophenol

Cited by 77 publications

References 49 publications

Hydrothermal Synthesis of Cr2Se3 Hexagons for Sensitive and Low-level Detection of 4-Nitrophenol in Water

Hydrothermal Synthesis of Cr2Se3 Hexagons for Sensitive and Low-level Detection of 4-Nitrophenol in Water

Fabrication of Silver Nanoparticles Decorated on Activated Screen Printed Carbon Electrode and Its Application for Ultrasensitive Detection of Dopamine

A facile approach for synthesizing molecularly imprinted graphene for ultrasensitive and selective electrochemical detecting 4-nitrophenol

Contact Info

Product

Resources

About