Biomass-derived carbon dots as a nanoswitch, logic gate operation, and electrochemical sensor for flavonoids

Mathew, Sneha; Mathew, Beena

doi:10.1039/d2nj05582a

Cited by 7 publications

(2 citation statements)

References 46 publications

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“…For example, carbon dots prepared from metaphenylene diamine and concentrated hydrochloric acid showed excellent biocompatibility and optical properties for rapid cell staining [20]. In addition, the application of CDs in electrocatalysis is beginning to attract attention [21][22][23]. The carbon dot-loaded silver nanoclusters had not only strong photoluminescence properties but also high oxygen reduction catalytic activity [24].…”

Section: Introductionmentioning

confidence: 99%

Facilely Prepared Carbon Dots as Effective Anode Modifier for Enhanced Performance of Microbial Fuel Cells

Wei,

Qiu,

et al. 2024

Appl Biochem Biotechnol

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Microbial fuel cells (MFCs) are a promising technology for obtaining energy in wastewater. Effective extracellular electron transfer is one of the key factors for its practical application. In this work, carbon dots (CDs) enriched with oxygen-containing groups on the surface were synthesized as an e cient anode modi er using a simple hydrothermal method and common reactants. The experimental results showed that CDs-modi ed anodes had higher electrical conductivity, and higher hydrophilicity, could load more microorganisms, enhanced electrochemical processes in the anode bio lm, and did not affect the total content of electrobacteria in the bio lm. The CDs-modi ed MFCs exhibited higher maximum power density (661.1 ± 42.6 mW m − 2 ) and open-circuit voltage (534.50 ± 6.4 mV), which were signi cantly better than those of the blank group MFCs (484.1 ± 14.1 mW m − 2 and 447.50 ± 12.1 mV). The use of simple carbon materials to improve the microbial loading on the MFCs anode and the electron transfer between the microbial-electrode may provide a new idea for the design of e cient MFCs.

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Section: Introductionmentioning

confidence: 99%

Facilely Prepared Carbon Dots as Effective Anode Modifier for Enhanced Performance of Microbial Fuel Cells

Wei,

Qiu,

et al. 2024

Appl Biochem Biotechnol

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“…Thus, green chemical synthesis of nanostructured materials is referred to as an environmentally friendly and eco-friendly process. A variety of favorable components are included in the plant biomass waste of plant extract, including capping agents, stabilizing agents, and reducing agents, which play a crucial role in preparing nanostructured compounds that are well controlled in terms of morphology, size, and surface properties [ 39 , 40 , 41 , 42 , 43 , 44 ].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of NiO Nanoflakes Using Bitter Gourd Peel, and Their Electrochemical Urea Sensing Application

et al. 2023

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To determine urea accurately in clinical samples, food samples, dairy products, and agricultural samples, a new analytical method is required, and non-enzymatic methods are preferred due to their low cost and ease of use. In this study, bitter gourd peel biomass waste is utilized to modify and structurally transform nickel oxide (NiO) nanostructures during the low-temperature aqueous chemical growth method. As a result of the high concentration of phytochemicals, the surface was highly sensitive to urea oxidation under alkaline conditions of 0.1 M NaOH. We investigated the structure and shape of NiO nanostructures using powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). In spite of their flake-like morphology and excellent crystal quality, NiO nanostructures exhibited cubic phases. An investigation of the effects of bitter gourd juice demonstrated that a large volume of juice produced thin flakes measuring 100 to 200 nanometers in diameter. We are able to detect urea concentrations between 1–9 mM with a detection limit of 0.02 mM using our urea sensor. Additionally, the stability, reproducibility, repeatability, and selectivity of the sensor were examined. A variety of real samples, including milk, blood, urine, wheat flour, and curd, were used to test the non-enzymatic urea sensors. These real samples demonstrated the potential of the electrode device for measuring urea in a routine manner. It is noteworthy that bitter gourd contains phytochemicals that are capable of altering surfaces and activating catalytic reactions. In this way, new materials can be developed for a wide range of applications, including biomedicine, energy production, and environmental protection.

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Advances in the application of logic gates in nanozymes

Hou,

Ga,

Zhang

et al. 2024

Anal Bioanal Chem

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Biomass-derived carbon dots as a nanoswitch, logic gate operation, and electrochemical sensor for flavonoids

Abstract: This study describes a straightforward fluorescence-based method using carbon dots (CDs) with a green chemistry synthesis process for the detection of the hazardous compound trinitrophenol, antibiotic ciprofloxacin, and electrochemical detection...

Cited by 7 publications

References 46 publications

Facilely Prepared Carbon Dots as Effective Anode Modifier for Enhanced Performance of Microbial Fuel Cells

Facilely Prepared Carbon Dots as Effective Anode Modifier for Enhanced Performance of Microbial Fuel Cells

Green Synthesis of NiO Nanoflakes Using Bitter Gourd Peel, and Their Electrochemical Urea Sensing Application

Advances in the application of logic gates in nanozymes

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