Banana peel derived biomass carbon: Multi‐walled carbon nanotube composite modified electrode for sensitive voltammetric detection of baicalein

Abstract

In this study, a novel electrochemical sensor was developed for the detection of baicalein based on multi-walled carbon nanotube (MWCNT) and banana peel derived biomass carbon (BPBC) composite modified glassy carbon electrode (GCE). The BPBC was synthesized by carbonization and alkali activation method using commonly available banana peel as the raw material, which was further mixed with MWCNT to obtain BPBC-MWCNT composite. Then the composite modified GCE was fabricated and used for voltammetric detection of baicalein with a wide detection range from 0.0040 to 100.0 μM as well as a low detection limit of 1.33 nM (3σ/S). Also, the electrochemical behaviors of baicalein on BPBC-MWCNT/GCE were investigated by cyclic voltammetry in detail. The proposed method was applied to the detection of baicalein content in Shuanghuanglian oral liquid with satisfactory results. Therefore, this work extended the electrochemical method for the drug analysis by using biomassderived carbon-based composite.

Plant‐Derived Nanomaterials for Targeted Biological Applications and Smart Agriculture

“…Biosensing deals with the quantifiable detection of chemical species or compounds selectively. [116] Plant-derived carbon nanomaterials offer significant advantages, including high sensitivity, rapid sensing, and economic viability, making them attractive candidates for various biosensing applications. [53] Several types of nanomaterials, such as carbon dots, carbon nanotubes, nanosheets, and plant-based nanoparticles, have been utilized as biosensors in several biological events, including pH sensing, ion sensing, and heavy metal sensing.…”

“…Apart from bioimaging, biosensing finds extensive applications in biological science. Biosensing deals with the quantifiable detection of chemical species or compounds selectively [116] . Plant‐derived carbon nanomaterials offer significant advantages, including high sensitivity, rapid sensing, and economic viability, making them attractive candidates for various biosensing applications [53] .…”

Electrochemical detection of dopamine by pineapple leaf‐derived porous carbon modified electrode

“…Carbon nanomaterials, including graphene, biomassderived porous carbon (BC), carbon nanofibers and carbon nanotube have aroused much attention in the field of electrochemical sensor with the characteristics of larger surface area and superior conductivity [16][17][18][19][20][21][22][23][24][25]. Among them, BC is generally prepared by direct carbonization of animal and plant wastes, which exhibits the advantages including low cost, renewable and environmental friendly raw materials [26][27][28]. For instance, Yang et al prepared a nitrogen-doped BC from Chinese fir sawdust, which was employed to construct electrochemical sensors for simultaneously determination of DA and uric acid (UA) [29].…”

A Portable Electrochemical Dopamine Detector Using a Fish Scale-Derived Graphitized Carbon-Modified Screen-Printed Carbon Electrode

“…High-temperature pyrolysis, catalytic pyrolysis and alkali activation are commonly used methods to adjust the morphological structure and graphitization degree of biomass carbon [27][28][29][30][31]. The graphitization degree of biomass carbon affects the defect site density and conductivity [32]; thus, it is a good strategy to improve the electrochemical performance by adjusting the graphitization degree of biomass carbon.…”