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Unraveling the Roles of Morphology and Steric Hindrance on Electrochemical Analytical Performance of α-Fe2O3 Nanostructures-Based Nanosensors towards Chloramphenicol Antibiotic in Shrimp Samples

In this work, we investigated the effect of morphology on the analytical performance of α-Fe2O3 nanostructures-based electrochemical sensors toward chloramphenicol (CAP) antibiotic using three designed morphologies including α-Fe2O3 nano-tube (α-Fe2O3-T), α-Fe2O3 nano-rice (α-Fe2O3-R), and α-Fe2O3 n...

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Main Authors: Nguyen, Ngoc Huyen, Ngo, Xuan Dinh, Mai, Quan Doan
Format: Bài trích
Language:English
Published: IOP Publishing 2022
Subjects:
Morphology
Nanostructures
Online Access:https://iopscience.iop.org/article/10.1149/1945-7111/ac4db0
https://dlib.phenikaa-uni.edu.vn/handle/PNK/5884
https://doi.org/10.1149/1945-7111/ac4db0
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spelling oai:localhost:PNK-58842022-08-17T05:54:54Z Unraveling the Roles of Morphology and Steric Hindrance on Electrochemical Analytical Performance of α-Fe2O3 Nanostructures-Based Nanosensors towards Chloramphenicol Antibiotic in Shrimp Samples Nguyen, Ngoc Huyen Ngo, Xuan Dinh Mai, Quan Doan Morphology Nanostructures In this work, we investigated the effect of morphology on the analytical performance of α-Fe2O3 nanostructures-based electrochemical sensors toward chloramphenicol (CAP) antibiotic using three designed morphologies including α-Fe2O3 nano-tube (α-Fe2O3-T), α-Fe2O3 nano-rice (α-Fe2O3-R), and α-Fe2O3 nano-plate (α-Fe2O3-P). Among these morphologies, α-Fe2O3-T displayed an outstanding electrochemical activity owing to the unique hollow structure and large specific surface area. However, due to the small pores size, α-Fe2O3-T showed the high steric hindrance (SD) effect towards an antibiotic with complex molecular structure, as CAP, leading to a significant decrease of their CAP electrochemical sensing performance. The CAP analytical performance of α-Fe2O3-R was highest in investigated morphologies owing to a high density of exposed Fe3+ as well as less SD effect towards CAP molecules. Under optimized conditions, α-Fe2O3-R-based CAP electrochemical sensor reached an electrochemical sensitivity of 0.92 μA μM−1 cm−2 with a LOD of 0.11 μM in the detection range from 2.5–50 μM. In addition, all these α-Fe2O3 nanostructures-based electrochemical sensors had excellent stability and high anti-interference ability for CAP analysis in a complex food matrix, as shrimp sample. This study provides valuable insights into the morphology-dependent sensing properties of α-Fe2O3 nanostructures towards antibiotics, which is helpful to the design of novel α-Fe2O3-based electrochemical nanosensors. 2022-07-13T01:59:48Z 2022-07-13T01:59:48Z 2022 Bài trích https://iopscience.iop.org/article/10.1149/1945-7111/ac4db0 https://dlib.phenikaa-uni.edu.vn/handle/PNK/5884 https://doi.org/10.1149/1945-7111/ac4db0 en IOP Publishing
institution Digital Phenikaa
collection Digital Phenikaa
language English
topic Morphology
Nanostructures
spellingShingle Morphology
Nanostructures
Nguyen, Ngoc Huyen
Ngo, Xuan Dinh
Mai, Quan Doan
Unraveling the Roles of Morphology and Steric Hindrance on Electrochemical Analytical Performance of α-Fe2O3 Nanostructures-Based Nanosensors towards Chloramphenicol Antibiotic in Shrimp Samples
description In this work, we investigated the effect of morphology on the analytical performance of α-Fe2O3 nanostructures-based electrochemical sensors toward chloramphenicol (CAP) antibiotic using three designed morphologies including α-Fe2O3 nano-tube (α-Fe2O3-T), α-Fe2O3 nano-rice (α-Fe2O3-R), and α-Fe2O3 nano-plate (α-Fe2O3-P). Among these morphologies, α-Fe2O3-T displayed an outstanding electrochemical activity owing to the unique hollow structure and large specific surface area. However, due to the small pores size, α-Fe2O3-T showed the high steric hindrance (SD) effect towards an antibiotic with complex molecular structure, as CAP, leading to a significant decrease of their CAP electrochemical sensing performance. The CAP analytical performance of α-Fe2O3-R was highest in investigated morphologies owing to a high density of exposed Fe3+ as well as less SD effect towards CAP molecules. Under optimized conditions, α-Fe2O3-R-based CAP electrochemical sensor reached an electrochemical sensitivity of 0.92 μA μM−1 cm−2 with a LOD of 0.11 μM in the detection range from 2.5–50 μM. In addition, all these α-Fe2O3 nanostructures-based electrochemical sensors had excellent stability and high anti-interference ability for CAP analysis in a complex food matrix, as shrimp sample. This study provides valuable insights into the morphology-dependent sensing properties of α-Fe2O3 nanostructures towards antibiotics, which is helpful to the design of novel α-Fe2O3-based electrochemical nanosensors.
format Bài trích
author Nguyen, Ngoc Huyen
Ngo, Xuan Dinh
Mai, Quan Doan
author_facet Nguyen, Ngoc Huyen
Ngo, Xuan Dinh
Mai, Quan Doan
author_sort Nguyen, Ngoc Huyen
title Unraveling the Roles of Morphology and Steric Hindrance on Electrochemical Analytical Performance of α-Fe2O3 Nanostructures-Based Nanosensors towards Chloramphenicol Antibiotic in Shrimp Samples
title_short Unraveling the Roles of Morphology and Steric Hindrance on Electrochemical Analytical Performance of α-Fe2O3 Nanostructures-Based Nanosensors towards Chloramphenicol Antibiotic in Shrimp Samples
title_full Unraveling the Roles of Morphology and Steric Hindrance on Electrochemical Analytical Performance of α-Fe2O3 Nanostructures-Based Nanosensors towards Chloramphenicol Antibiotic in Shrimp Samples
title_fullStr Unraveling the Roles of Morphology and Steric Hindrance on Electrochemical Analytical Performance of α-Fe2O3 Nanostructures-Based Nanosensors towards Chloramphenicol Antibiotic in Shrimp Samples
title_full_unstemmed Unraveling the Roles of Morphology and Steric Hindrance on Electrochemical Analytical Performance of α-Fe2O3 Nanostructures-Based Nanosensors towards Chloramphenicol Antibiotic in Shrimp Samples
title_sort unraveling the roles of morphology and steric hindrance on electrochemical analytical performance of α-fe2o3 nanostructures-based nanosensors towards chloramphenicol antibiotic in shrimp samples
publisher IOP Publishing
publishDate 2022
url https://iopscience.iop.org/article/10.1149/1945-7111/ac4db0
https://dlib.phenikaa-uni.edu.vn/handle/PNK/5884
https://doi.org/10.1149/1945-7111/ac4db0
_version_ 1751856286028267520
score 8.887836

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