Rapid screening of rhodamine B in food by hydrogel solid-phase extraction coupled with direct fluorescence detection

Huang, Yuting; Wang, Dongmei; Liu, Wen; Zheng, Liang; Wang, Yixu; Liu, Xuke; Fan, Meikun; Gong, Zhengjun

doi:10.1016/j.foodchem.2020.126378

Cited by 36 publications

(16 citation statements)

References 21 publications

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“…To demonstrate the practical application of the 3D-Gr/Si heterojunction substrates in environmental monitoring and food safety, the SERS detection of R6G (regarded as an organic pollutant in environmental water) and RB (regarded as a harmful food additive in chili oil) was conducted. , Figure a shows the measurement setup for SERS detection of R6G and RB in practical analysis; based on the inset in Figure a, R6G is completely dissolved in the river water (upper inset of Figure a), and deionized (DI) water is added into mixture solution of RB and chili oil to extract the RB molecules from the chili oil and to form a stratified solution by shaking, ultrasonic extraction, and centrifugation (lower inset of Figure a). The SERS spectra of R6G dissolved in river water are shown in Figure b.…”

Section: Results and Discussionmentioning

confidence: 99%

Sensitive, Reusable, Surface-Enhanced Raman Scattering Sensors Constructed with a 3D Graphene/Si Hybrid

Zhu

Feng

Liu

et al. 2021

ACS Appl. Mater. Interfaces

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Surface-enhanced Raman scattering (SERS) substrates based on graphene and its derivatives have recently attracted attention among those interested in the detection of trace molecules; however, these substrates generally show poor uniformity, an unsatisfactory enhancement factor, and require a complex fabrication process. Herein, we design and fabricate threedimensional (3D) graphene/silicon (3D-Gr/Si) heterojunction SERS substrates to detect various types of molecules. Notably, the detection limit of 3D-Gr/Si can reach 10 −10 M for rhodamine 6G (R6G) and rhodamine B (RB), 10 −7 M for crystal violet (CRV), copper(II) phthalocyanine (CuPc), and methylene blue (MB), 10 −8 M for dopamine (DA), 10 −6 M for bovine serum albumin (BSA), and 10 −5 M for melamine (Mel), which is superior to most reported graphene-based SERS substrates. Besides, the proposed 3D-Gr/Si heterojunction SERS substrates can achieve a high uniformity with relative standard deviations (RSDs) of less than 5%. Moreover, the 3D-Gr/Si SERS substrates are reusable after washing with ethyl alcohol to remove the adsorbed molecules. These excellent SERS performances are attributed to the novel 3D structure and abundantly exposed atomically thin edges, which facilitate charge transfer between 3D-Gr and probe molecules. We believe that the 3D-Gr/Si heterojunction SERS substrates offer potential for practical applications in biochemical molecule detection and provide insight into the design of high-performance SERS substrates.

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Section: Results and Discussionmentioning

confidence: 99%

Sensitive, Reusable, Surface-Enhanced Raman Scattering Sensors Constructed with a 3D Graphene/Si Hybrid

Zhu

Feng

Liu

et al. 2021

ACS Appl. Mater. Interfaces

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“…Similar report can also be found in other research. [654,[657][658][659] In recent years, polymer-based hydrogel solid-phase extraction (SPE) was also used as sampling method in direct onsite fast screening of risk substances, such as mercury (II) (Hg 2+ ) ions, [660] illicit additives on fruit peel, [658] rhodamine B, [661] etc.…”

Section: Risk Monitoringmentioning

confidence: 99%

Hydrogel: Diversity of Structures and Applications in Food Science

Jia

Luo

2021

Food Reviews International

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Hydrogels are a series of soft and wet materials with three dimensions of crosslinked networks. Hydrogels have attracted great attention due to their diverse functional properties, and their wide range of applications, such as in soft robots and actuators, stretched electronic devices, tissue engineering materials, controlled-release drug delivery vehicles, biomedicine materials, food science, and (bio)sensors. In general, there are four core concerns in hydrogel science, including the polymer source, structure fabrication, gel function, and gel applications. According to the logic that the "structure determines function", it is believed that rational design of structures can effectively regulate the functions and applications of hydrogels. Hence, in the current review, "structure" as the core topic will be highly regarded, and the crosslinking mechanisms and structural diversity of hydrogels are comprehensively summarized. Additionally, hydrogels also show their great application potential in food science. Hence, the current review also pays more attention to the application of hydrogels in food nutrition and health, food engineering and processing, and food safety. It is whished that this review not only serves as a reference for improving the comprehensive understanding of the structural design of hydrogels but also provides a forward-looking idea for hydrogel applications in food science.

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“…With our increasing consciousness about food safety, RhB has been suggested to be toxic and even carcinogenic, negatively affecting food safety and directly threatening human life. Consequently, it is forbidden to add RhB into food in some regions and countries such as Europe and China [ 4 ]. However, the illegal addition of RhB to foods is still very common.…”

Section: Introductionmentioning

confidence: 99%

Cu-Doped Boron Nitride Nanosheets for Solid-Phase Extraction and Determination of Rhodamine B in Foods Matrix

Liu¹,

Zhou

et al. 2022

Nanomaterials

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Cu-doped boron nitride nanosheets (Cu-BNNS) were first reported as promising adsorbents for the solid-phase extraction and determination of rhodamine B (RhB) dye in a food matrix. Different characterizations, including XRD, FTIR, XPS, SEM, and TEM, were performed to confirm the formation of the adsorbent. Then, the adsorption performance of Cu-BNNS was investigated by adsorption kinetics, isotherms, and thermodynamics. Multiple extraction parameters were optimized by single-factor experiments. Under optimized conditions, the recoveries in the food matrix were in the range of 89.8–95.4%, with the spiked levels of 100 ng/mL and 500 ng/mL, respectively. This novel system was expected to have great potential to detect RhB in a wide variety of real samples.

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Rapid screening of rhodamine B in food by hydrogel solid-phase extraction coupled with direct fluorescence detection

Cited by 36 publications

References 21 publications

Sensitive, Reusable, Surface-Enhanced Raman Scattering Sensors Constructed with a 3D Graphene/Si Hybrid

Sensitive, Reusable, Surface-Enhanced Raman Scattering Sensors Constructed with a 3D Graphene/Si Hybrid

Hydrogel: Diversity of Structures and Applications in Food Science

Cu-Doped Boron Nitride Nanosheets for Solid-Phase Extraction and Determination of Rhodamine B in Foods Matrix

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