Green synthesis of porous carbon nanocubes accumulated microspheres for the simultaneous non-enzymatic sensing of uric acid and dopamine in the presence of ascorbic acid

Sethuraman, Sivasakthi; Imran, Habibulla; Gurunathan, K.; Sagadevan, Suresh; Mohammad, Faruq; Dharuman, Venkataraman

doi:10.1016/j.synthmet.2020.116598

Cited by 16 publications

(5 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3a presents the results of FTIR spectrum for AS before adsorption, which revealed the presence of the following absorbencies. (1) An absorption band located at 3418 cm -1 can be assigned to the stretching vibration of O-H [33]- [40], (2) The band observed at 2511 cm -1 corresponds to O=C-H stretching [41], (3) The band at 1814 cm -1 is attributed to the oxygencontaining functional group stretching vibrations [42], while (4) The band observed at 1422 cm -1 indicates the presence of the -OH group deformation vibration in the associative secondary alcohol [43], (5) The stretching vibration of the C-O bond in the epoxy group can be inferred from the band located at 1091 cm −1 in the spectrum [33], (6) Small and sharp peaks in the range of 900 to 500 cm −1 were observed for AS, which have been attributed to the bending vibration of C=C [44], [45]. Furthermore, (7) The peak observed at 463 cm −1 (in the fingerprint region) can be attributed to the adsorption bands of α-Fe2O3 [46].…”

Section: Infrared Spectroscopy Analysis (Ft-ir)mentioning

confidence: 99%

Adsorption of Congo red dye from aqueous solution by using siderite waste accompanying phosphate mines: Performance and mechanism

Talaat,

Gabr,

Moneim

et al. 2023

Preprint

View full text Add to dashboard Cite

Natural siderite (NS) collected from Abu Tartur area, Egypt was used as an adsorbent of Congo red from an aqueous solution. Activated siderite (AS) was prepared by calcination at 350°C for 2 hrs. The AS adsorbent was characterized by various physicochemical techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Thermogravimetric analysis (TGA), Surface area measurement (BET), XRF analyses, and texture analysis. The impact of various adsorption parameters (adsorbent dosage, Congo red concentration, pH, contact time, and temperature) was studied in a batch system in order to optimize the maximum dye sorption. The optimum parameters were found to be pH. 2, initial dye concentration 150 mg/L, contact time 30 minutes, and adsorbent dose 0.2 g. Adsorption kinetics and equilibrium isotherm of the ANS adsorbent were studied using pseudo-second-order, intra-particle diffusion, and Elovich models. Moreover, Langmuir and Freundlich isotherms were applied for the interpretation of the obtained equilibrium data. The obtained data were found to best fit the Langmuir model, while the adsorption kinetic followed the pseudo-second-order equation. The intra-particle diffusion investigations indicate that the diffusion process is not the rate-controlling step. The analysis of our data was extended to estimate the kinetic and thereafter the thermodynamic functions. Accordingly, the functions such as free energy change (ΔG°), enthalpy change (ΔH°), the activation energy of adsorption (Ea), and entropy change (ΔS°) were estimated and found to be -226.42, -2.443, 33.71 kJ/mol and 0.751 kJ/mol.K, respectively. Overall these findings let us infer that the use of ANS as an adsorbent has the potential to be an effective and cheap adsorbent for removing dyes from industrial wastewater.

show abstract

Section: Infrared Spectroscopy Analysis (Ft-ir)mentioning

confidence: 99%

Adsorption of Congo red dye from aqueous solution by using siderite waste accompanying phosphate mines: Performance and mechanism

Talaat,

Gabr,

Moneim

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Hence, various conductive additives, including carbon nanotubes and other nanostructures, have been used to enhance electrical conductivity and charge transport within the catalyst composite. On account of their low cost, electrical conductivity, and good corrosion resistance in a wide range of electrolytes, carbon-based nanomaterials have been widely used as electrochemical sensors. , In particular, the growth of electrocatalytic nanoparticles on the carbon-based substrates has improved electrochemical performance. However, despite having a high surface to volume ratio, CNTs are less sensitive to electro-oxidizing specific biomolecules such as DA because of the lack of catalytically active sites, requiring the use of metal nanocatalysts .…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Dopamine Sensing with a Carbon Nanotube-Encapsulated Metal Chalcogenide Nanostructure

Singh,

Wu,

Lagemann

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Carbon nanotube-encapsulated nickel selenide composite nanostructures were used as nonenzymatic electrochemical sensors for dopamine detection. These composite nanostructures were synthesized through a simple, one-step, and environmentally friendly chemical vapor deposition method, wherein the CNTs were formed in situ from pyrolysis of a carbon-rich metallo-organic precursor. The composition and morphology of these hybrid NiSe 2 -filled carbon nanostructures were confirmed by powder X-ray diffraction, Raman, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy images. Electrochemical tests demonstrated that the as-synthesized hybrid nanostructures exhibited outstanding electrocatalytic performance toward dopamine oxidation, with a high sensitivity of 19.62 μA μM −1 cm −2 , low detection limit, broad linear range of 5 nM−640 μM, and high selectivity. The synergistic effects of enhanced electrochemical activity of nickel selenide along with the enhanced conductivity of carbon nanotubes led to the high electrocatalytic efficiency for these nanostructured composites. The high sensitivity and selectivity of this nanostructured composite could be exploited to develop simple, selective, and sensitive electrochemical sensors to detect and quantify dopamine in human tear samples with high reliability. This nanotube-encapsulated sensor, hence, paves the way for discoveries in the development of dopamine sensors with low cost and high stability, which can be used for noninvasive dopamine detection in peripheral bodily fluids.

show abstract

“…[6,7] For the electrochemical sensors to sensitive detection of DA and UA, the efficient material is essential. [8][9][10][11] Since DA and UA coexisting in the human body possess the similar molecular structures, their oxidation potentials are too close to identify each other by a single material as the modified electrode. Therefore, the developing multicomponent materials with the combined properties offered by the different components becomes the effective method thus far for resolving this issue.…”

Section: Introductionmentioning

confidence: 99%

“…In good contrast, the electrochemical methods can avoid all these disadvantages, which possess the features of high sensitivity, simple operation, quick response, low cost, and good selectivity [6,7] . For the electrochemical sensors to sensitive detection of DA and UA, the efficient material is essential [8–11] . Since DA and UA coexisting in the human body possess the similar molecular structures, their oxidation potentials are too close to identify each other by a single material as the modified electrode.…”

Section: Introductionmentioning

confidence: 99%

A Porphyrin‐functionalized Graphene Oxide Nanocomposite for Simultaneous Detection of Dopamine and Uric Acid

Wei

Liu

et al. 2022

ChemNanoMat

View full text Add to dashboard Cite

Carbon nanomaterials combined with porphyrins having the similar electrocatalytic active center to heme protein are quite promising for high‐performance nonenzymatic electrochemical sensor. Herein, the catalytic tetra(4‐aminophenyl) porphyrin (TAPP) molecules are covalent immobilized on the conductive graphene oxide (GO) surface (TAPP@GO) by a simple one‐pot method. TAPP@GO as a novel electrochemical sensor successfully realized the sensitive detection of dopamine (DA) and uric acid (UA) in nM level with high stability and repeatability. The detection limit (LOD) for DA and UA is as low as 38 and 47 nM, and sensitivity up to 40.3 and 54.2 μA mM−1 in a wide detection range from 0.1 to 350 μM, respectively. Impressively, both DA and UA in the coexistence system can be simultaneously determined with the LOD of 51 and 64 nM for DA and UA, which is further confirmed by accurate determination of both in urine samples. This work represents not only the first example of electrochemical sensor based on organic porphyrin molecules covalent linked on GO surface, but more importantly provides an effective method for developing high‐performance sensing materials.

show abstract

Green synthesis of porous carbon nanocubes accumulated microspheres for the simultaneous non-enzymatic sensing of uric acid and dopamine in the presence of ascorbic acid

Cited by 16 publications

References 46 publications

Adsorption of Congo red dye from aqueous solution by using siderite waste accompanying phosphate mines: Performance and mechanism

Adsorption of Congo red dye from aqueous solution by using siderite waste accompanying phosphate mines: Performance and mechanism

Highly Efficient Dopamine Sensing with a Carbon Nanotube-Encapsulated Metal Chalcogenide Nanostructure

A Porphyrin‐functionalized Graphene Oxide Nanocomposite for Simultaneous Detection of Dopamine and Uric Acid

Contact Info

Product

Resources

About