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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:
Nanostructures-Based
Nanosensors towards
Online Access:https://iopscience.iop.org/article/10.1149/1945-7111/ac4db0
https://dlib.phenikaa-uni.edu.vn/handle/PNK/5742
https://doi.org/10.1149/1945-7111/ac4db0
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spelling oai:localhost:PNK-57422022-08-17T05:54:52Z 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 Nanostructures-Based Nanosensors towards 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. 2022-05-05T07:26:16Z 2022-05-05T07:26:16Z 2022 Bài trích https://iopscience.iop.org/article/10.1149/1945-7111/ac4db0 https://dlib.phenikaa-uni.edu.vn/handle/PNK/5742 https://doi.org/10.1149/1945-7111/ac4db0 en IOP Publishing
institution Digital Phenikaa
collection Digital Phenikaa
language English
topic Nanostructures-Based
Nanosensors towards
spellingShingle Nanostructures-Based
Nanosensors towards
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/5742
https://doi.org/10.1149/1945-7111/ac4db0
_version_ 1751856280716181504
score 8.893527

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