Enzyme decorated dendritic bimetallic nanocomposite biosensor for detection of HCHO

Gajjala, Rajendra Kumar Reddy; Gade, Pravin Savata; Bhatt, Praveena; Vishwakarma, Neelam; Singh, Suman

doi:10.1016/j.talanta.2021.123054

Cited by 7 publications

(7 citation statements)

References 36 publications

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“…GO was synthesized and characterized in our previous study by the modied Hummers' method. 21,22 The 5 0 6-FAM labelled nucleotide library (FNL) was treated sequentially at 95, 0 and 37 C for 10 min each to obtain single-stranded aptamer conrmations. The FNL was incubated with GO in the presence of binding buffer (100 mM NaCl, 20 mM Tris-HCL, 2 mM MgCl 2 , 5 mM KCL, 1 mM CaCl 2 ), pH 7.6, 800 rpm for 3 h at RT (30 AE 2 C).…”

Section: Go Selexmentioning

confidence: 99%

Graphene oxide-mediated fluorescence turn-on GO-FAM-FRET aptasensor for detection of sterigmatocystin

2022

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Section: Go Selexmentioning

confidence: 99%

Graphene oxide-mediated fluorescence turn-on GO-FAM-FRET aptasensor for detection of sterigmatocystin

2022

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“…The GO used in this study was synthesized and characterized in our previous work. , The hydrolysate was treated with different concentrations of GO (1–5 mg/mL). The treated hydrolysate was incubated at 200 rpm for 1 h at room temperature.…”

Section: Methodsmentioning

confidence: 99%

Green Downstream Processing Method for Xylooligosaccharide Purification and Assessment of Its Prebiotic Properties

Sonkar,

Gade,

Mudliar

et al. 2023

ACS Omega

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Xylooligosaccharides (XOS) obtained from lignocellulosic biomass after autohydrolysis primarily consist of ligninderived impurities and autogenerated inhibitors like furfural, hydroxymethylfurfural, and acetic acid. In this study, graphene oxide-mediated purification (GOMP), a novel and environmentally friendly downstream processing method, was developed for the purification of XOS from hydrolysate obtained after ozone-assisted autohydrolysis of wheat bran. GOMP resulted in appreciable recovery of total XOS from the hydrolysate (73.87 ± 4.25%, DP2− 6) with near complete removal of autogenerated inhibitors (furfural 85.42%, HMF 87.38%, and acetic acid 84.0%). Recovery of XOS by GOMP was higher than the conventional membrane purification technique (44.07 ± 0.92%) and activated charcoal treatment (72.76 ± 0.84%) along with comparatively higher removal of inhibitor compounds. GOMP results in the selective adsorption of inhibitors on the graphene oxide matrix from the XOS-rich hydrolysate, resulting in its purification and concentration. The prebiotic function of the obtained XOS fractions (DP2−4.48%, DP3−39.69%, DP4−36.13%, DP5−8.38%, and DP6−13.10%) was evaluated, indicating the growth stimulation of tested probiotic cultures and differential utilization of XOS oligomers DP3 and DP4 and complete consumption of DP2, DP5, and DP6 along with short-chain fatty acids as a major fermentation product. These findings suggest that GOMP, which employs a common substance (i.e., graphene oxide) used in water treatment, exhibits potential as an efficient and economically viable single-step methodology for XOS purification.

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“…It demonstrates remarkable stability and selectivity and has been successfully applied to determine added formaldehyde concentrations in river water samples. Bhatt et al designed a biosensor utilizing a thiol-functionalized graphene nanocomposite decorated with formaldehyde dehydrogenase [ 76 ]. The sensor incorporates fern-like gold–palladium dendritic deposition on a printed electrode, enabling the detection of NADH and, consequently, formaldehyde.…”

Section: Electrochemical Sensors For Formaldehydementioning

confidence: 99%

Recent Advances in Electrochemical Sensors for Formaldehyde

Yang,

Hao,

Huang

et al. 2024

Molecules

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Formaldehyde, a ubiquitous indoor air pollutant, plays a significant role in various biological processes, posing both environmental and health challenges. This comprehensive review delves into the latest advancements in electrochemical methods for detecting formaldehyde, a compound of growing concern due to its widespread use and potential health hazards. This review underscores the inherent advantages of electrochemical techniques, such as high sensitivity, selectivity, and capability for real-time analysis, making them highly effective for formaldehyde monitoring. We explore the fundamental principles, mechanisms, and diverse methodologies employed in electrochemical formaldehyde detection, highlighting the role of innovative sensing materials and electrodes. Special attention is given to recent developments in nanotechnology and sensor design, which significantly enhance the sensitivity and selectivity of these detection systems. Moreover, this review identifies current challenges and discusses future research directions. Our aim is to encourage ongoing research and innovation in this field, ultimately leading to the development of advanced, practical solutions for formaldehyde detection in various environmental and biological contexts.

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Enzyme decorated dendritic bimetallic nanocomposite biosensor for detection of HCHO

Cited by 7 publications

References 36 publications

Graphene oxide-mediated fluorescence turn-on GO-FAM-FRET aptasensor for detection of sterigmatocystin

Graphene oxide-mediated fluorescence turn-on GO-FAM-FRET aptasensor for detection of sterigmatocystin

Green Downstream Processing Method for Xylooligosaccharide Purification and Assessment of Its Prebiotic Properties

Recent Advances in Electrochemical Sensors for Formaldehyde

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