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Multienzyme Mimicking Cascade Mn3O4 Catalyst to Augment Reactive Oxygen Species Elimination and Colorimetric Detection: A Study of Phase Variation upon Calcination Temperature
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2024-05-28 , DOI: 10.1021/acs.inorgchem.4c00883
Salim Ali 1 , Suranjan Sikdar 2 , Shatarupa Basak 1 , Modhusudan Mondal 1 , Ajit Tudu 1 , Debadrita Roy 1 , Md Salman Haydar 3 , Shibaji Ghosh 4 , Habibur Rahaman 5 , Sanchita Sil 6 , Mahendra Nath Roy 1
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2024-05-28 , DOI: 10.1021/acs.inorgchem.4c00883
Salim Ali 1 , Suranjan Sikdar 2 , Shatarupa Basak 1 , Modhusudan Mondal 1 , Ajit Tudu 1 , Debadrita Roy 1 , Md Salman Haydar 3 , Shibaji Ghosh 4 , Habibur Rahaman 5 , Sanchita Sil 6 , Mahendra Nath Roy 1
Affiliation
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Over decades, nanozyme has served as a better replacement of bioenzymes and fulfills most of the shortcomings and intrinsic disadvantages of bioenzymes. Recently, manganese-based nanomaterials have been highly noticed for redox-modulated multienzyme mimicking activity and wide applications in biosensing and biomedical science. The redox-modulated multienzyme mimicking activity was highly in tune with their size, surface functionalization, and charge on the surface and phases. On the subject of calcination temperature to Mn3O4 nanoparticles (NPs), its phase has been transformed to Mn2O3 NPs and Mn5O8 NPs upon different calcination temperatures. Assigning precise structure–property connections is made easier by preparing the various manganese oxides in a single step. The present study has focused on the variation of multienzyme mimicking activity with different phases of Mn3O4 NPs, so that they can be equipped for multifunctional activity with greater potential. Herein, spherical Mn3O4 NPs have been synthesized via a one-step coprecipitation method, and other phases are obtained by direct calcination. The calcination temperature varies to 100, 200, 400, and 600 °C and the corresponding manganese oxide NPs are named M-100, M-200, M-400, and M-600, respectively. The phase transformation and crystalline structure are evaluated by powder X-ray diffraction and selected-area electron diffraction analysis. The different surface morphologies are easily navigated by Fourier transform infrared, field-emission scanning electron microscopy, and high-resolution transmission electron microscopy analysis. Fortunately, for the mixed valence state of Mn3O4 NPs, all phases of manganese oxide NPs showed multienzyme mimicking activity including superoxide dismutase (SOD), catalase, oxidase (OD), and peroxidase; therefore, it offers a synergistic antioxidant ability to overexpose reactive oxygen species. Mn3O4 NPs exhibited good SOD-like enzyme activity, which allowed it to effectively remove the active oxygen (O2•–) from cigarette smoke. A sensitive colorimetric sensor with a low detection limit and a promising linear range has been designed to detect two isomeric phenolic pollutants, hydroquinone (H2Q) and catechol (CA), by utilizing optimized OD activity. The current probe has outstanding sensitivity and selectivity as well as the ability to visually detect two isomers with the unaided eye.
中文翻译：
多酶模拟级联 Mn3O4 催化剂增强活性氧消除和比色检测：煅烧温度下相变的研究
几十年来，纳米酶已成为生物酶的更好替代品，并弥补了生物酶的大部分缺点和固有缺点。近年来，锰基纳米材料因其氧化还原调节多酶模拟活性以及在生物传感和生物医学领域的广泛应用而受到高度关注。氧化还原调节的多酶模拟活性与其尺寸、表面功能化以及表面和相上的电荷高度一致。关于Mn 3 O 4纳米颗粒(NPs)的煅烧温度，在不同的煅烧温度下，其相转变为Mn 2 O 3 NPs和Mn 5 O 8 NPs。通过一步制备各种锰氧化物，可以更轻松地确定精确的结构-性能联系。本研究的重点是不同相的Mn 3 O 4 NPs的多酶模拟活性的变化，以便它们能够具有更大潜力的多功能活性。在此，通过一步共沉淀法合成了球形Mn 3 O 4 NPs，并通过直接煅烧获得了其他相。煅烧温度为100、200、400和600℃，相应的氧化锰纳米颗粒分别命名为M-100、M-200、M-400和M-600。通过粉末X射线衍射和选区电子衍射分析评估相变和晶体结构。通过傅里叶变换红外、场发射扫描电子显微镜和高分辨率透射电子显微镜分析可以轻松导航不同的表面形貌。 幸运的是，对于混合价态的Mn 3 O 4 NPs，所有相的氧化锰NPs均表现出多酶模拟活性，包括超氧化物歧化酶（SOD）、过氧化氢酶、氧化酶（OD）和过氧化物酶；因此，它具有协同抗氧化能力，可防止过度暴露的活性氧。 Mn 3 O 4 NPs表现出良好的类SOD酶活性，使其能够有效去除香烟烟雾中的活性氧（O 2 •– ）。设计了一种具有低检测限和良好线性范围的灵敏比色传感器，通过利用优化的 OD 活性来检测两种异构酚类污染物：对苯二酚 (H 2 Q) 和儿茶酚 (CA)。当前的探针具有出色的灵敏度和选择性，并且能够用肉眼直观地检测两种异构体。
更新日期：2024-05-28
中文翻译：
多酶模拟级联 Mn3O4 催化剂增强活性氧消除和比色检测：煅烧温度下相变的研究
几十年来，纳米酶已成为生物酶的更好替代品，并弥补了生物酶的大部分缺点和固有缺点。近年来，锰基纳米材料因其氧化还原调节多酶模拟活性以及在生物传感和生物医学领域的广泛应用而受到高度关注。氧化还原调节的多酶模拟活性与其尺寸、表面功能化以及表面和相上的电荷高度一致。关于Mn 3 O 4纳米颗粒(NPs)的煅烧温度，在不同的煅烧温度下，其相转变为Mn 2 O 3 NPs和Mn 5 O 8 NPs。通过一步制备各种锰氧化物，可以更轻松地确定精确的结构-性能联系。本研究的重点是不同相的Mn 3 O 4 NPs的多酶模拟活性的变化，以便它们能够具有更大潜力的多功能活性。在此，通过一步共沉淀法合成了球形Mn 3 O 4 NPs，并通过直接煅烧获得了其他相。煅烧温度为100、200、400和600℃，相应的氧化锰纳米颗粒分别命名为M-100、M-200、M-400和M-600。通过粉末X射线衍射和选区电子衍射分析评估相变和晶体结构。通过傅里叶变换红外、场发射扫描电子显微镜和高分辨率透射电子显微镜分析可以轻松导航不同的表面形貌。 幸运的是，对于混合价态的Mn 3 O 4 NPs，所有相的氧化锰NPs均表现出多酶模拟活性，包括超氧化物歧化酶（SOD）、过氧化氢酶、氧化酶（OD）和过氧化物酶；因此，它具有协同抗氧化能力，可防止过度暴露的活性氧。 Mn 3 O 4 NPs表现出良好的类SOD酶活性，使其能够有效去除香烟烟雾中的活性氧（O 2 •– ）。设计了一种具有低检测限和良好线性范围的灵敏比色传感器，通过利用优化的 OD 活性来检测两种异构酚类污染物：对苯二酚 (H 2 Q) 和儿茶酚 (CA)。当前的探针具有出色的灵敏度和选择性，并且能够用肉眼直观地检测两种异构体。
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