Amorphous Ni(OH)2 nanocages as efficient SERS substrates for selective recognition in mixtures

Yu, Jian; Lin, Jie; Chen, Mo; Meng, Xiangyu; Qiu, Lin; Wu, Jin; Xi, Guangcheng; Wang, Xiaotian

doi:10.1016/j.colsurfa.2021.127652

Cited by 8 publications

(2 citation statements)

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“…Thus, the fluorescence background of probe molecules was destroyed, further improving the resolution of SERS detection [16,17]. Moreover, the high selectivity owing to the CM effect of non-noble metal SERS substrates can distinguish specific molecules from complex environments [18,19]. Based on this, non-noble metal nanomaterials, as the promising candidate nanomaterials for SERS substrates, show a huge application prospect in SERS detection.…”

Section: Introductionmentioning

confidence: 99%

A Review on Non-Noble Metal Substrates for Surface-Enhanced Raman Scattering Detection

Chen

2023

Chemosensors

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Surface-enhanced Raman scattering (SERS), a powerful spectroscopic technique owing to its abundant vibrational fingerprints, has been widely employed for the assay of analytes. It is generally considered that one of the critical factors determining the SERS performance is the property of the substrate materials. Apart from noble metal substrates, non-noble metal nanostructured materials, as emerging new substrates, have been extensively studied for SERS research by virtue of their superior biocompatibility, good chemical stability, outstanding selectivity, and unique physicochemical properties such as adjustable band structure and carrier concentration. Herein, in this review, we summarized the research on the analytical application of non-noble metal SERS substrates from three aspects. Firstly, we started with an introduction to the possible enhancement mechanism of non-noble metal substrates. Then, as a guideline for substrates design, several main types of materials, including carbon nanomaterials, transition metal dichalcogenides (TMDs), metal oxides, metal-organic frameworks (MOFs), transition metal carbides and nitrides (MXenes), and conjugated polymers were discussed. Finally, we especially emphasized their analytical application, such as the detection of pollutants and biomarkers. Moreover, the challenges and attractive research prospects of non-noble metal SERS substrates in practical application were proposed. This work may arouse more awareness of the practical application of the non-noble metal material-based SERS substrates, especially for bioanalysis.

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Section: Introductionmentioning

confidence: 99%

A Review on Non-Noble Metal Substrates for Surface-Enhanced Raman Scattering Detection

Chen

2023

Chemosensors

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“…Further, to derive the position of the Fermi level, the electrochemical Mott−Schottky plot using CoNi-LDH and Fe 0.07 (CoNi) 0.93 -LDH as electrodes was carried out. From the intercept of the Mott−Schottky plots, the flat-band potentials are estimated to be −0.55 V for CoNi-LDH and −0.35 V for Fe 0.07 (CoNi) 0.93 -LDH (vs Ag/AgCl electrode) (Figure3e) 35. These flat-band potentials were used to determine the corresponding Fermi levels at −4.56 and −4.76 eV for CoNi-LDH and Fe 0.07 (CoNi) 0.93 -LDH (vs vacuum level), and the details are presented in the Supporting Information S4.…”

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confidence: 99%

Ag-Coated Ternary Layered Double Hydroxide as a High-Performance SERS Sensor for Aldehydes

Meng,

Wang,

Song

et al. 2023

ACS Appl. Mater. Interfaces

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Volatile organic compounds (VOCs) are common environmental pollutants and important biomarkers for early diagnosis of lung cancer. However, aldehydes are difficult to detect directly due to their small Raman scattering cross-section and gaseous phase. Here, a Ag-coated ternary layered double hydroxide (LDH) was designed for the detection and identification of various aldehydes. The specific surface area of CoNi-LDH was increased by doping Fe3+, which provides abundant active sites to capture gas molecules. Furthermore, the energy band gap (E g) was decreased due to the local amorphous FeCoNi-LDH with an extended band tail, promoting the excitonic transition of Fe0.07(CoNi)0.93-LDH. In addition, the Fermi level of Ag prevented the recombination of electron–hole pairs of Fe0.07(CoNi)0.93-LDH, providing a new bridge for charge transfer between the substrate and the molecule. Ag/Fe0.07(CoNi)0.93-LDH presented excellent surface-enhanced Raman scattering (SERS) performance for aldehyde VOCs by modification with 4-aminothiophenol (4-ATP) to capture aldehydes and realized the detection of benzaldehyde (BZA) at 10 ppb. The enhancement and Raman shift of the b2 mode indicated the contribution of chemical enhancement to the SERS system, so the substrate presented good uniformity. The recycling of the SERS substrate is realized based on the reversibility of the Schiff base reaction. These results manifested that Ag/FeCoNi-LDH has a wide prospect in the application in the trace detection of aldehydes.

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Innovative Applications and Perspectives of Surface‐Enhanced Raman Spectroscopy Technology in Biomedicine

Xu,

Xie,

Liu

et al. 2024

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Surface‐enhanced Raman spectroscopy (SERS) has become a revolutionary technique in the biomedical field, providing unparalleled sensitivity for the detection and characterization of biological samples. In this review, recent SERS innovations are comprehensively discussed, including advanced substrate materials, different SERS detection strategies, and multimodal approaches that combine SERS with other biotechnologies. Among them, the role of SERS in the accurate diagnosis of tumors is highlighted, which has promoted accurate molecular analysis and real‐time monitoring of treatment effects. In addition, the growing potential of SERS in the treatment of chronic diseases such as cardiovascular disease, diabetes, and neurodegenerative diseases is discussed. Moreover, the integration with microfluidic chip systems for precise single‐cell analysis is presented. To give a forward‐looking view, the key challenges faced by SERS technology are also proposed, and possible solutions to overcome these obstacles are provided.

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Amorphous Ni(OH)2 nanocages as efficient SERS substrates for selective recognition in mixtures

Cited by 8 publications

References 46 publications

A Review on Non-Noble Metal Substrates for Surface-Enhanced Raman Scattering Detection

A Review on Non-Noble Metal Substrates for Surface-Enhanced Raman Scattering Detection

Ag-Coated Ternary Layered Double Hydroxide as a High-Performance SERS Sensor for Aldehydes

Innovative Applications and Perspectives of Surface‐Enhanced Raman Spectroscopy Technology in Biomedicine

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