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Xue W, Fu J, Zhang Y, Ren S, Liu G. A core-shell structured AuNPs@ZnCo-MOF SERS substrate for sensitive and selective detection of thiram. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1811-1820. [PMID: 38450563 DOI: 10.1039/d4ay00164h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Surface-enhanced Raman scattering (SERS) enables pesticide residue monitoring to become facile and efficient. In this study, a core-shell structured gold nanoparticles@ZnCo metal-organic framework (AuNPs@ZnCo-MOF) SERS substrate was designed and successfully synthesized for efficient and selective detection of thiram. The bimetallic ZnCo-MOF shell can not only enrich the targeted molecules in the electromagnetic field because of its excellent absorptive capacity, but also act as a stabilized matrix for protecting the AuNPs from aggregation. The AuNPs@ZnCo-MOFs exhibited a high enhancement factor (EF) of 3.51 × 106 and a low detection limit of 1 × 10-7 mol L-1. Besides, the substrate material showed exceptional stability for up to 28 days at room temperature. The AuNPs@ZnCo-MOFs were used to detect thiram which displayed wide linearity (1 × 10-7 to 1 × 10-4 mol L-1) and high recoveries (83.45-99.61%). Moreover, the AuNPs@ZnCo-MOF SERS substrate exhibited excellent anti-interference ability and size selectivity for the target molecules. These indicate that the AuNPs@ZnCo-MOF substrate has great potential for the detection of thiram residues in practical applications.
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Affiliation(s)
- Wenxia Xue
- Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uyghur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, Xinjiang, China.
| | - Jihong Fu
- Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uyghur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, Xinjiang, China.
| | - Yaxue Zhang
- Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uyghur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, Xinjiang, China.
| | - Shuxian Ren
- Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uyghur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, Xinjiang, China.
| | - Guoqi Liu
- Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education & Xinjiang Uyghur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, Xinjiang, China.
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2
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Ahmed S, Mohanta D, Baruah K, Dolui SK. CsPbBr 3 perovskite quantum dot decorated ZIF-8 MOF: a selective dual recognition fluorometric visual probe for 4-nitroaniline and rhodamine blue. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6394-6403. [PMID: 37982280 DOI: 10.1039/d3ay01458d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
The uses of highly luminescent perovskite quantum dots in real analytical detection were limited by their supersensitive nature. Here, we have designed a CsPbBr3 perovskite based fluorometric sensor by integrating them with a zeolitic imidazole framework (ZIF-8) via an in situ one step technique and established its stability in aqueous and other polar solvents. The CsPbBr3@ZIF-8 luminescence sensor functioned excellently for the trace detection of 4-nitroaniline and rhodamine blue dye molecules with a detection limit value of 8.367 ppb and 0.088 ppm, respectively. A comprehensive investigation found that the quenching of the fluorescence signal occurred via fluorescence resonance energy transfer (FRET) for rhodamine blue dye and a H-bonding interaction induced trap density mediated quenching mechanism was responsible for 4-NA detection. The potential of this suggested sensor as a cheap portable test paper probe for analyte detection was also explored. This study introduces CsPbBr3 as a cutting-edge sensing platform for industrial pollutants such as dye molecules and nitroaromatics.
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Affiliation(s)
- Shahnaz Ahmed
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, 784028, Assam, India.
| | | | - Kankana Baruah
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, 784028, Assam, India.
| | - Swapan Kumar Dolui
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, 784028, Assam, India.
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Bhardwaj SK, Deep A, Bhardwaj N, Wangoo N. Recent advancements in nanomaterial based optical detection of food additives: a review. Analyst 2023; 148:5322-5339. [PMID: 37750046 DOI: 10.1039/d3an01317k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Food additives have become a critical component in the food industry. They are employed as preservatives to decelerate the negative effects of environmental and microbial factors on food quality. Currently, food additives are used for a variety of purposes, including colorants, flavor enhancers, nutritional supplements, etc., owing to improvements in the food industry. Since the usage of food additives has increased dramatically, the efficient monitoring of their acceptable levels in food products is quite necessary to mitigate the problems associated with their inappropriate use. The traditional methods used for detecting food additives are generally based on standard spectroscopic and chromatographic techniques. However, these analytical techniques are limited by their high instrumentation cost and time-consuming procedures. The emerging field of nanotechnology has enabled the development of highly sensitive and specific sensors to analyze food additives in a rapid manner. The current article emphasizes the need to detect various food additives owing to their potential negative effects on humans, animals, and the environment. In this article, the role of nanomaterials in the optical sensing of food additives has been discussed owing to their high accuracy, ease-of-use, and excellent sensitivity. The applications of nanosensors for the detection of various food additives have been elaborated with examples. The current article will assist policymakers in developing new rules and regulations to mitigate the adverse effects of toxic food additives on humans and the environment. In addition, the prospects of nanosensors for the optical detection of food additives at a commercial scale have been discussed to combat their irrational use in the food industry.
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Affiliation(s)
- Sanjeev K Bhardwaj
- Department of Applied Sciences, University Institute of Engineering Technology (UIET), Panjab University, Chandigarh, India.
| | - Akash Deep
- Energy and Environment unit, Institute of Nanoscience and Technology, Mohali, India.
| | - Neha Bhardwaj
- Energy and Environment unit, Institute of Nanoscience and Technology, Mohali, India.
| | - Nishima Wangoo
- Department of Applied Sciences, University Institute of Engineering Technology (UIET), Panjab University, Chandigarh, India.
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4
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Sonexai P, Van Nguyen M, Huy BT, Lee YI. Silver-based SERS substrates fabricated using a 3D printed microfluidic device. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2023; 14:793-803. [PMID: 37496703 PMCID: PMC10366445 DOI: 10.3762/bjnano.14.65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 06/21/2023] [Indexed: 07/28/2023]
Abstract
The detection of harmful chemicals in the environment and for food safety is a crucial requirement. While traditional techniques such as GC-MS and HPLC provide high sensitivity, they are expensive, time-consuming, and require skilled labor. Surface-enhanced Raman spectroscopy (SERS) is a powerful analytical tool for detecting ultralow concentrations of chemical compounds and biomolecules. We present a reproducible method for producing Ag nanoparticles that can be used to create highly sensitive SERS substrates. A microfluidic device was employed to confine the precursor reagents within the droplets, resulting in Ag nanoparticles of uniform shape and size. The study investigates the effects of various synthesis conditions on the size distribution, dispersity, and localized surface plasmon resonance wavelength of the Ag nanoparticles. To create the SERS substrate, the as-synthesized Ag nanoparticles were assembled into a monolayer on a liquid/air interface and deposited onto a porous silicon array prepared through a metal-assisted chemical etching approach. By using the developed microfluidic device, enhancement factors of the Raman signal for rhodamine B (at 10-9 M) and melamine (at 10-7 M) of 8.59 × 106 and 8.21 × 103, respectively, were obtained. The detection limits for rhodamine B and melamine were estimated to be 1.94 × 10-10 M and 2.8 × 10-8 M with relative standard deviation values of 3.4% and 4.6%, respectively. The developed SERS substrate exhibits exceptional analytical performance and has the potential to be a valuable analytical tool for monitoring environmental contaminants.
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Affiliation(s)
- Phommachith Sonexai
- Anastro Laboratory, Institute of Basic Science, Changwon National University, Changwon 51140, Republic of Korea
| | - Minh Van Nguyen
- Anastro Laboratory, Institute of Basic Science, Changwon National University, Changwon 51140, Republic of Korea
| | - Bui The Huy
- Anastro Laboratory, Institute of Basic Science, Changwon National University, Changwon 51140, Republic of Korea
| | - Yong-Ill Lee
- Anastro Laboratory, Institute of Basic Science, Changwon National University, Changwon 51140, Republic of Korea
- Department of Pharmacy, Pharmaceutical Technical University, Tashkent 100084, Uzbekistan
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5
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Wu L, Tang X, Wu T, Zeng W, Zhu X, Hu B, Zhang S. A review on current progress of Raman-based techniques in food safety: From normal Raman spectroscopy to SESORS. Food Res Int 2023; 169:112944. [PMID: 37254368 DOI: 10.1016/j.foodres.2023.112944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/27/2023] [Accepted: 05/02/2023] [Indexed: 06/01/2023]
Abstract
Frequently occurrence of food safety incidents has induced global concern over food safety. To ensure food quality and safety, an increasing number of rapid and sensitive analytical methods have been developed for analysis of all kinds of food composition and contaminants. As one of the high-profile analytical techniques, Raman spectroscopy has been widely applied in food analysis with simple, rapid, sensitive, and nondestructive detection performance. Research on Raman techniques is a direction of great interest to many fields, especially in food safety. Hence, it is crucial to gain insight into recent advances on the use of Raman-based techniques in food safety applications. In this review, we introduce Raman techniques from normal Raman spectroscopy to developed ones (e.g., surface enhanced Raman scattering (SERS), spatially offset Raman spectroscopy (SORS), surface-enhanced spatially offset Raman spectroscopy (SESORS)), in view of their history and development, principles, design, and applications. In addition, future challenges and trends of these techniques are discussed regarding to food safety.
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Affiliation(s)
- Long Wu
- School of Food Science and Engineering, Key Laboratory of Tropical and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou 570228, PR China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, PR China.
| | - Xuemei Tang
- School of Food Science and Engineering, Key Laboratory of Tropical and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou 570228, PR China
| | - Ting Wu
- School of Food Science and Engineering, Key Laboratory of Tropical and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou 570228, PR China
| | - Wei Zeng
- School of Food Science and Engineering, Key Laboratory of Tropical and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou 570228, PR China
| | - Xiangwei Zhu
- College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, PR China
| | - Bing Hu
- Key Laboratory of Biotechnology and Bioresources Utilization of Ministry of Education, School of Life Sciences, Dalian Minzu University, Dalian 116600, PR China
| | - Sihang Zhang
- School of Food Science and Engineering, Key Laboratory of Tropical and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou 570228, PR China
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Sun W, Xu Q, Liu Q, Wang T, Liu Z. Post-synthetic modification of a magnetic covalent organic framework with alkyne linkages for efficient magnetic solid-phase extraction and determination of trace basic orange II in food samples. J Chromatogr A 2023; 1690:463777. [PMID: 36640681 DOI: 10.1016/j.chroma.2023.463777] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/31/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023]
Abstract
Efficient magnetic solid phase extraction using covalent organic frameworks (COFs) can find important applications in food safety. In this work, a sulfonate-functionalized magnetic COF (Fe3O4@COF-SO3Na) was synthesized by self-polycondensation of two-in-one monomer 1,6-bis(4-formylphenyl)-3,8-bis((4-aminophenyl) ethynyl)) pyrene (BFBAEPy) on the surface of aminated Fe3O4 and a thiol-yne click reaction. It was further adopted as an adsorbent for the efficient magnetic solid-phase extraction (MSPE) of basic orange II. The selective adsorption experiment indicated that it displayed selective adsorption ability to basic orange II due to the ion exchange, hydrogen bonds, and π-π interactions. Under the optimized conditions, the proposed MSPE method coupled with HPLC-DAD showed excellent linearity in the range of 0.05-0.5 µg/mL (R2 = 0.9997) for basic orange II. The lower limits of detection (LODs) for basic orange II were 1.0-1.4 µg/L for three food samples: yellow croaker, paprika and dried bean curd. The recoveries were 90.1-98.8% with relative standard deviations (RSDs) below 4.2%. Therefore, this work provides an effective strategy to modify magnetic COFs as absorbents in MSPE. Due to the tunability of functional groups in thiol‑yne click reactions, the functional groups of magnetic COFs can be readily designed to enrich their multifunctional applications. Meanwhile, this work proposed a new method to detect trace amounts of basic orange II in food samples.
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Affiliation(s)
- Wei Sun
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Qing Xu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China.
| | - Qili Liu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Tianliang Wang
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Zhaixin Liu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
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7
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Son WK, Choi YS, Han YW, Shin DW, Min K, Shin J, Lee MJ, Son H, Jeong DH, Kwak SY. In vivo surface-enhanced Raman scattering nanosensor for the real-time monitoring of multiple stress signalling molecules in plants. NATURE NANOTECHNOLOGY 2023; 18:205-216. [PMID: 36522556 DOI: 10.1038/s41565-022-01274-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 10/21/2022] [Indexed: 06/17/2023]
Abstract
When under stress, plants release molecules to activate their defense system. Detecting these stress-related molecules offers the possibility to address stress conditions and prevent the development of diseases. However, detecting endogenous signalling molecules in living plants remains challenging due to low concentrations of these analytes and interference with other compounds; additionally, many methods currently used are invasive and labour-intensive. Here we show a non-destructive surface-enhanced Raman scattering (SERS)-based nanoprobe for the real-time detection of multiple stress-related endogenous molecules in living plants. The nanoprobe, which is placed in the intercellular space, is optically active in the near-infrared region (785 nm) to avoid interferences from plant autofluorescence. It consists of a Si nanosphere surrounded by a corrugated Ag shell modified by a water-soluble cationic polymer poly(diallyldimethylammonium chloride), which can interact with multiple plant signalling molecules. We measure a SERS enhancement factor of 2.9 × 107 and a signal-to-noise ratio of up to 64 with an acquisition time of ~100 ms. To show quantitative multiplex detection, we adopted a binding model to interpret the SERS intensities of two different analytes bound to the SERS hot spot of the nanoprobe. Under either abiotic or biotic stress, our optical nanosensors can successfully monitor salicylic acid, extracellular adenosine triphosphate, cruciferous phytoalexin and glutathione in Nasturtium officinale, Triticum aestivum L. and Hordeum vulgare L.-all stress-related molecules indicating the possible onset of a plant disease. We believe that plasmonic nanosensor platforms can enable the early diagnosis of stress, contributing to a timely disease management of plants.
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Affiliation(s)
- Won Ki Son
- Department of Chemistry Education, College of Education, Seoul National University, Seoul, Republic of Korea
| | - Yun Sik Choi
- Department of Chemistry Education, College of Education, Seoul National University, Seoul, Republic of Korea
| | - Young Woo Han
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Dong Wook Shin
- Department of Chemistry Education, College of Education, Seoul National University, Seoul, Republic of Korea
| | - Kyunghun Min
- Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
| | - Jiyoung Shin
- Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
| | - Min Jeong Lee
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Hokyoung Son
- Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Dae Hong Jeong
- Department of Chemistry Education, College of Education, Seoul National University, Seoul, Republic of Korea.
- Center for Educational Research, Seoul National University, Seoul, Republic of Korea.
| | - Seon-Yeong Kwak
- Department of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea.
- Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea.
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8
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Ikram M, Zahoor M, Naeem M, Islam NU, Shah AB, Shahzad B. Bacterial oxidoreductive enzymes as molecular weapons for the degradation and metabolism of the toxic azo dyes in wastewater: a review. Z PHYS CHEM 2022. [DOI: 10.1515/zpch-2022-0150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Abstract
Azo dyes are extremely toxic and pose significant environmental and health risks. Consequently, mineralization and conversion to simple compounds are required to avoid their hazardous effects. A variety of enzymes from the bacterial system are thought to be involved in the degradation and metabolism of azo dyes. Bioremediation, a cost effective and eco-friendly biotechnology, involving bacteria is powered by bacterial enzymes. As mentioned, several enzymes from the bacterial system serve as molecular weapons in the degradation of these dyes. Among these enzymes, azoreductase, oxidoreductase, and laccase are of great interest for the degradation and decolorization of azo dyes. Combination of the oxidative and reductive enzymes is used for the removal of azo dyes from water. The aim of this review article is to provide information on the importance of bacterial enzymes. The review also discusses the genetically modified microorganisms in the biodegradation of azo dyes in polluted water.
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Affiliation(s)
- Muhammad Ikram
- Department of Chemistry , Abdul Wali Khan University Mardan , Mardan , 23200 , Pakistan
| | - Muhammad Zahoor
- Department of Biochemistry , University of Malakand at Chakdara , Dir Lower Khyber Pakhtunkhwa , Pakistan
| | - Muhammad Naeem
- Department of Chemistry , Abdul Wali Khan University Mardan , Mardan , 23200 , Pakistan
| | - Noor Ul Islam
- Department of Chemistry , University of Malakand at Chakdara , Dir Lower Khyber Pakhtunkhwa , Pakistan
| | - Abdul Bari Shah
- Division of Applied Life Science (BK21 Plus) , Institute of Agriculture and Life Sciences, Gyeongsang National University , Jinju 52828 , Korea
| | - Babar Shahzad
- Department of Biochemistry , Institute of Basic Medical Sciences, Khyber Medical University Peshawar Khyber Pakhtunkhwa , Peshawar , Pakistan
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9
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A smartphone-based ratiometric fluorescence and absorbance dual-mode device for Rhodamine B determination in combination with differential molecularly imprinting strategy and primary inner filter effect correction. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Kang S, Wang W, Rahman A, Nam W, Zhou W, Vikesland PJ. Highly porous gold supraparticles as surface-enhanced Raman spectroscopy (SERS) substrates for sensitive detection of environmental contaminants. RSC Adv 2022; 12:32803-32812. [PMID: 36425178 PMCID: PMC9665105 DOI: 10.1039/d2ra06248h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 11/09/2022] [Indexed: 09/10/2023] Open
Abstract
Surface-enhanced Raman spectroscopy (SERS) has great potential as an analytical technique for environmental analyses. In this study, we fabricated highly porous gold (Au) supraparticles (i.e., ∼100 μm diameter agglomerates of primary nano-sized particles) and evaluated their applicability as SERS substrates for the sensitive detection of environmental contaminants. Facile supraparticle fabrication was achieved by evaporating a droplet containing an Au and polystyrene (PS) nanoparticle mixture on a superamphiphobic nanofilament substrate. Porous Au supraparticles were obtained through the removal of the PS phase by calcination at 500 °C. The porosity of the Au supraparticles was readily adjusted by varying the volumetric ratios of Au and PS nanoparticles. Six environmental contaminants (malachite green isothiocyanate, rhodamine B, benzenethiol, atrazine, adenine, and gene segment) were successfully adsorbed to the porous Au supraparticles, and their distinct SERS spectra were obtained. The observed linear dependence of the characteristic Raman peak intensity for each environmental contaminant on its aqueous concentration reveals the quantitative SERS detection capability by porous Au supraparticles. The limit of detection (LOD) for the six environmental contaminants ranged from ∼10 nM to ∼10 μM, which depends on analyte affinity to the porous Au supraparticles and analyte intrinsic Raman cross-sections. The porous Au supraparticles enabled multiplex SERS detection and maintained comparable SERS detection sensitivity in wastewater influent. Overall, we envision that the Au supraparticles can potentially serve as practical and sensitive SERS devices for environmental analysis applications.
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Affiliation(s)
- Seju Kang
- Department of Civil and Environmental Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
- Virginia Tech Institute of Critical Technology and Applied Science (ICTAS) Sustainable Nanotechnology Center (VTSuN) Blacksburg Virginia USA
| | - Wei Wang
- Department of Civil and Environmental Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
- Virginia Tech Institute of Critical Technology and Applied Science (ICTAS) Sustainable Nanotechnology Center (VTSuN) Blacksburg Virginia USA
| | - Asifur Rahman
- Department of Civil and Environmental Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
- Virginia Tech Institute of Critical Technology and Applied Science (ICTAS) Sustainable Nanotechnology Center (VTSuN) Blacksburg Virginia USA
| | - Wonil Nam
- Department of Electrical and Computer Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
- Department of Electronic Engineering, Pukyong National University Busan Republic of Korea
| | - Wei Zhou
- Department of Electrical and Computer Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
| | - Peter J Vikesland
- Department of Civil and Environmental Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
- Virginia Tech Institute of Critical Technology and Applied Science (ICTAS) Sustainable Nanotechnology Center (VTSuN) Blacksburg Virginia USA
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Chang R, Wang T, Liu Q, Tang J, Wu D. Ag Nanoparticles@Agar Gel as a 3D Flexible and Stable SERS Substrate with Ultrahigh Sensitivity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:13822-13832. [PMID: 36326574 DOI: 10.1021/acs.langmuir.2c01966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Flexible surface-enhanced Raman scattering (SERS) substrates have become one of the research hot spots due to the facile sampling by swabbing or wrapping on rough surfaces and the sensitive and nondestructive detection of contaminants. In this work, we proposed a simple and fast in situ reduction method to prepare Ag nanoparticles (Ag NPs) composited agar hydrogel (Ag NPs@Agar) flexible SERS substrate. Owing to the three-dimensional (3D) structure, good hydrophilicity and adsorption of the agar hydrogel, Ag NPs were grown uniformly in the 3D cross-linked structure. The distribution density of Ag NPs was further increased by the volume shrinkage when the hydrogel was dried in air. This high density and uniformly distribution of Ag NPs produced a large number of highly active SERS regions. In addition, the sensitivity of Ag NPs@Agar was further improved with the assistance of hydrophilic agar gel, which can trap the probe molecules into highly active SERS areas. The SERS results showed that the substrate can be used to detect dye molecules (rhodamine 6G), the minimum detectable concentration was 10-15 M, the relative standard deviation tested at 18 different positions was only 7.58%, and the intensity of the characteristic peak at 611 cm-1 decreased only about 10% after 49 days of storage, demonstrating the superior stability. Moreover, the Ag NPs@Agar substrate also could successfully achieve the micro-trace detection of melamine and sodium penicillin G in Xinjiang specialty camel milk powder. The above available results show that the prepared flexible Ag NPs@Agar SERS substrates possess potentials for the illegal additives and antibiotics in food safety analysis.
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Affiliation(s)
- Rong Chang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; College of Chemistry, Xinjiang University, Urumqi830046, Xinjiang, PR China
| | - Tao Wang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; College of Chemistry, Xinjiang University, Urumqi830046, Xinjiang, PR China
| | - Qian Liu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; College of Chemistry, Xinjiang University, Urumqi830046, Xinjiang, PR China
| | - Jun Tang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; College of Chemistry, Xinjiang University, Urumqi830046, Xinjiang, PR China
| | - Dongling Wu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; College of Chemistry, Xinjiang University, Urumqi830046, Xinjiang, PR China
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Bai F, Dong J, Wang T, Qu J, Zhang Z. Controllable assembly of high sticky and flexibility surface-enhanced Raman scattering substrate for on-site target pesticide residues detection. Food Chem 2022; 405:134794. [DOI: 10.1016/j.foodchem.2022.134794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022]
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13
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Phuong NTT, Nguyen TA, Huong VT, Tho LH, Anh DT, Ta HKT, Huy TH, Trinh KTL, Tran NHT. Sensors for Detection of the Synthetic Dye Rhodamine in Environmental Monitoring Based on SERS. MICROMACHINES 2022; 13:mi13111840. [PMID: 36363861 PMCID: PMC9694732 DOI: 10.3390/mi13111840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/10/2022] [Accepted: 10/24/2022] [Indexed: 05/05/2023]
Abstract
This article presents a review of many types of SERS sensors for food safety and environmental pollution monitoring based on detecting rhodamine. It introduces the basic concepts of substrates, enhancement factors, and mechanisms, devices' sensors integrated with the microstructure. Here, we review the state-of-the-art research in the field of rhodamine monitoring and highlight the applications of SERS sensors. The trends in the development of substrates for different applications have been mentioned with the aim of providing an overview of the development of different SERS substrates. Thus, an efficient approach for rhodamine detection has a good perspective for application in environmental monitoring.
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Affiliation(s)
- Nguyen Tran Truc Phuong
- Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Thuy-An Nguyen
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam
- Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang City 550000, Vietnam
| | - Vu Thi Huong
- Department of Information Communication, Materials, and Chemistry Convergence Technology, Soongsil University, Seoul 06978, Korea
| | - Le Hong Tho
- Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Do Thao Anh
- Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Hanh Kieu Thi Ta
- Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Tran Huu Huy
- Quy Nhon College of Engineering and Technology, Quy Nhon 590000, Vietnam
| | - Kieu The Loan Trinh
- Department of Industrial Environmental Engineering, College of Industrial Environmental Engineering, Gachon University, Seongnam 13120, Korea
- Correspondence: (K.T.L.T.); (N.H.T.T.)
| | - Nhu Hoa Thi Tran
- Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam National University, Ho Chi Minh City 700000, Vietnam
- Correspondence: (K.T.L.T.); (N.H.T.T.)
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14
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Truc Phuong NT, Dang VQ, Van Hieu L, Bach TN, Khuyen BX, Thi Ta HK, Ju H, Phan BT, Thi Tran NH. Functionalized silver nanoparticles for SERS amplification with enhanced reproducibility and for ultrasensitive optical fiber sensing in environmental and biochemical assays. RSC Adv 2022; 12:31352-31362. [PMID: 36348993 PMCID: PMC9624182 DOI: 10.1039/d2ra06074d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 10/19/2022] [Indexed: 11/28/2022] Open
Abstract
Plasmonic sensors have broad application potential in many fields and are promising to replace most bulky sensors in the future. There are various method-based chemical reduction processes for silver nanoparticle production with flexible structural shapes due to their simplicity and rapidity in nanoparticle fabrication. In this study, self-assembled silver nanoparticles (Ag NPs) with a plasmon peak at 424 nm were successfully coated onto -NH2-functionalized glass and optical fiber sensors. These coatings were rapidly produced via two denaturation reactions in plasma oxygen, respectively, and an APTES ((3-aminopropyl)triethoxysilane) solution was shown to have high strength and uniformity. With the use of Ag NPs for surface-enhanced Raman scattering (SERS), excellent results and good stability with the detection limit up to 10-10 M for rhodamine B and 10-8 M for methylene blue, and a signal degradation of only ∼20% after storing for 30 days were achieved. In addition, the optical fiber sensor with Ag NP coatings exhibited a higher sensitivity value of 250 times than without coatings to the glycerol solution. Therefore, significant enhancement of these ultrasensitive sensors demonstrates promising alternatives to cumbersome tests of dye chemicals and biomolecules without any complicated process.
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Affiliation(s)
- Nguyen Tran Truc Phuong
- Faculty of Materials Science and Technology, University of Science Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Vietnam
| | - Vinh Quang Dang
- Faculty of Materials Science and Technology, University of Science Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Vietnam
| | - Le Van Hieu
- Faculty of Materials Science and Technology, University of Science Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Vietnam
| | - Ta Ngoc Bach
- Institute of Materials Science, Vietnam Academy of Science and Technology Hanoi Vietnam
| | - Bui Xuan Khuyen
- Institute of Materials Science, Vietnam Academy of Science and Technology Hanoi Vietnam
| | - Hanh Kieu Thi Ta
- Faculty of Materials Science and Technology, University of Science Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Vietnam
| | - Heongkyu Ju
- Department of Physics, Gachon University Seongnam Gyeonggi-do 13120 Republic of Korea
| | - Bach Thang Phan
- Vietnam National University Ho Chi Minh City Vietnam
- Center for Innovative Materials and Architectures (INOMAR) HoChiMinh City Viet Nam
| | - Nhu Hoa Thi Tran
- Faculty of Materials Science and Technology, University of Science Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Vietnam
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15
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Irfan M, Shah A, Iftikhar FJ, Hayat M, Ashiq MN, Shah I. Electrochemical Sensing Platform Based on Functionalized Multi-Walled Carbon Nanotubes and Metal Oxide for the Detection and Degradation Studies of Orange II Dye. ACS OMEGA 2022; 7:32302-32312. [PMID: 36119977 PMCID: PMC9475636 DOI: 10.1021/acsomega.2c03641] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Textile industry effluents are heavily contaminated with dyes. The discharge of these toxic dyes into waterbodies poses a serious threat to aquatic flora and fauna. The ultimate entrance of these toxins from thereon into the food chain affects the primary and secondary consumers. Therefore, the adoption of a sustainable solution for protection against the detrimental effects associated with adulterated water is an immediate need of the hour. To address the severity of the issue, the present work aims to design an electrochemical sensing platform by modifying the glassy carbon electrode (GCE) with zinc oxide nanoparticles and amino group-functionalized multi-walled carbon nanotubes (NH2-fMWCNTs) for the detection of Orange II, which is a toxic azo dye. Zinc oxide nanoparticles facilitate electron transfer between the transducer and the analyte. While, the positively charged NH2-fMWCNTs in acidic medium help in preconcentration of negatively charged analyte molecules at the electrode/electrolyte interface. The modification of the GCE catalyzed the oxidation of Orange II, as evidenced by the negative shift of the oxidation potential and enhancement in peak current intensity. Square wave voltammetry was used to optimize various experimental conditions, such as the supporting electrolyte, pH of the electrolyte, deposition potential, and deposition time for the best performance of the designed sensor. Under the optimized conditions, the detection limit and quantification of the designed sensor were found to be 0.57 and 1.92 nM, respectively. The catalytic degradation studies of Orange II was shown to be facilitated by titanium dioxide, which acted as a photocatalyst. The addition of hydrogen peroxide further promoted the extent and rate of degradation of dye. The breakdown of Orange II was probed by the designed sensing platform electrochemically and also by UV-visible spectroscopy. The dye degraded up to 92% by following pseudo-first-order kinetics.
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Affiliation(s)
- Muhammad Irfan
- Department
of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Afzal Shah
- Department
of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Faiza Jan Iftikhar
- NUTECH
School of Applied Science & Humanities, National University of Technology, Islamabad 44000, Pakistan
| | - Mazhar Hayat
- Department
of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Muhammad Naeem Ashiq
- Institute
of Chemical Sciences, Bahauddin Zakaryia
University, Multan 6100, Pakistan
| | - Iltaf Shah
- Department
of Chemistry, College of Science, United
Arab Emirates University, P.O. Box, Al Ain 15551, United Arab
Emirates
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16
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Wang BX, Duan G, Xu W, Xu C, Jiang J, Yang Z, Wu Y, Pi F. Flexible surface-enhanced Raman scatting substrates: recent advances in their principles, design strategies, diversified material selections and applications. Crit Rev Food Sci Nutr 2022; 64:472-516. [PMID: 35930338 DOI: 10.1080/10408398.2022.2106547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Surface-enhanced Raman scattering (SERS) is widely used as a powerful analytical technology in cutting-edge areas such as food safety, biology, chemistry, and medical diagnosis, providing ultra-fast, ultra-sensitive, nondestructive characterization and achieving ultra-high detection sensitivity even down to the single-molecule level. Development of Raman spectroscopy is strongly dependent on high-performance SERS substrates, which have long evolved from the early days of rough metal electrodes to periodic nanopatterned arrays building on solid supporting substrates. For rigid SERS substrates, however, their applications are restricted by sophisticated pretreatments for detecting solid samples with non-planar surfaces. It is therefore essential to reassert the principles in constructing flexible SERS substrates. Herein, we comprehensively review the state-of-the-art in understanding, preparing and using flexible SERS. The basic mechanisms behind the flexible SERS are briefly outlined, typical design strategies are highlighted and diversified selection of materials in preparing flexible SERS substrates are reviewed. Then the recent achievements of various interdisciplinary applications based on flexible SERS substrates are summarized. Finally, the challenges and perspectives for future evolution of flexible SERS and their applications are demonstrated. We propose new research directions focused on stimulating the real potential of SERS as an advanced analytical technique for commercialization.
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Affiliation(s)
- Ben-Xin Wang
- School of Science, Jiangnan University, Wuxi, China
| | - Guiyuan Duan
- School of Science, Jiangnan University, Wuxi, China
| | - Wei Xu
- School of Science, Jiangnan University, Wuxi, China
| | - Chongyang Xu
- School of Science, Jiangnan University, Wuxi, China
| | | | | | - Yangkuan Wu
- School of Science, Jiangnan University, Wuxi, China
| | - Fuwei Pi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
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17
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Liu E, Fan X, Yang Z, Han L, Li S, Huang Y, Liao K, Cai L. Rapid and simultaneous detection of multiple illegal additives in feed and food by SERS with reusable Cu 2O-Ag/AF-C 3N 4 substrate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 276:121229. [PMID: 35427922 DOI: 10.1016/j.saa.2022.121229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/25/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Illegal additives can bring the economic benefit, resulting in the continuous irregularities in the use of illegal additives. In this study, a method for rapid, sensitive, and simultaneous detection of multiple illegal additives including enrofloxacin, malachite green, nitrofurazone, and Sudan Ⅰ in feed and food samples by surface-enhanced Raman spectroscopy (SERS) with Cu2O-Ag/AF-C3N4 composite substrate was developed. A Cu2O-Ag/AF-C3N4 composite substrate was prepared by reacting Cu2O modified by AF-C3N4 nanosheets with AgNO3 solution. The substrate has a limit of detection (LOD) of 1.29 × 10-6 mg/L, a good linear relationship of between 10-6 and 10-2 mg/L, and an R2 value of 0.95 for Rhodamine B detection. Furthermore, the substrate showed high uniformity and reproducibility, with relative standard deviations (RSD) of 6.74% and 4.85%, respectively. Adding AF-C3N4 nanosheets not only increased the enhancement effect of the substrate, which was 4.4 times of that before addition, but also endowed it with good self-cleaning characteristics owing to its excellent photocatalytic activity. The substrate can be reused, with over 80% of the original Raman signal strength remaining after four repeat uses. The SERS based on the above substrate was used to detect the illegal additives, the LOD of enrofloxacin, malachite green, nitrofurazone, and Sudan Ⅰ can reach 4.67 × 10-4 mg/L, 2.57 × 10-5 mg/L, 5.7 × 10-7 mg/L and 6.92 × 10-5 mg/L. The results reveal that this substrate has great application potential in feed and food safety.
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Affiliation(s)
- Erwei Liu
- College of Engineering, China Agricultural University, Beijing 100083, PR China
| | - Xia Fan
- China National Feed Quality Inspection and Testing Center for Agro-products of CAAS, Beijing 100081, PR China
| | - Zengling Yang
- College of Engineering, China Agricultural University, Beijing 100083, PR China.
| | - Lujia Han
- College of Engineering, China Agricultural University, Beijing 100083, PR China
| | - Shouxue Li
- College of Engineering, China Agricultural University, Beijing 100083, PR China
| | - Yuanping Huang
- College of Engineering, China Agricultural University, Beijing 100083, PR China
| | - Keke Liao
- College of Engineering, China Agricultural University, Beijing 100083, PR China
| | - Linwei Cai
- College of Engineering, China Agricultural University, Beijing 100083, PR China
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18
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Innovative Application of SERS in Food Quality and Safety: A Brief Review of Recent Trends. Foods 2022; 11:foods11142097. [PMID: 35885344 PMCID: PMC9322305 DOI: 10.3390/foods11142097] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/07/2022] [Accepted: 07/08/2022] [Indexed: 02/06/2023] Open
Abstract
Innovative application of surface-enhanced Raman scattering (SERS) for rapid and nondestructive analyses has been gaining increasing attention for food safety and quality. SERS is based on inelastic scattering enhancement from molecules located near nanostructured metallic surfaces and has many advantages, including ultrasensitive detection and simple protocols. Current SERS-based quality analysis contains composition and structural information that can be used to establish an electronic file of the food samples for subsequent reference and traceability. SERS is a promising technique for the detection of chemical, biological, and harmful metal contaminants, as well as for food poisoning, and allergen identification using label-free or label-based methods, based on metals and semiconductors as substrates. Recognition elements, including immunosensors, aptasensors, or molecularly imprinted polymers, can be linked to SERS tags to specifically identify targeted contaminants and perform authenticity analysis. Herein, we highlight recent studies on SERS-based quality and safety analysis for different foods categories spanning the whole food chain, ‘from farm to table’ and processing, genetically modified food, and novel foods. Moreover, SERS detection is a potential tool that ensures food safety in an easy, rapid, reliable, and nondestructive manner during the COVID-19 pandemic.
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19
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Establishment of the thin-layer chromatography-surface-enhanced Raman spectroscopy and chemometrics method for simultaneous identification of eleven illegal drugs in anti-rheumatic health food. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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20
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Nilghaz A, Mahdi Mousavi S, Amiri A, Tian J, Cao R, Wang X. Surface-Enhanced Raman Spectroscopy Substrates for Food Safety and Quality Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:5463-5476. [PMID: 35471937 DOI: 10.1021/acs.jafc.2c00089] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) has been identified as a fundamental surface-sensitive technique that boosts Raman scattering by adsorbing target molecules on specific surfaces. The application of SERS highly relies on the development of smart SERS substrates, and thus the fabrication of SERS substrates has been constantly improved. Herein, we investigate the impacts of different substrates on SERS technology including plasmonic metal nanoparticles, semiconductors, and hybrid systems in quantitative food safety and quality analysis. We first discuss the fundamentals, substrate designs, and applications of SERS. We then provide a critical review of the recent progress of SERS in its usage for screening and detecting chemical and biological contaminants including fungicides, herbicides, insecticides, hazardous colorants, and biohazards in food samples to assess the analytical capabilities of this technology. Finally, we investigate the future trends and provide practical techniques that could be used to fulfill the requirements for rapid analysis of food at a low cost.
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Affiliation(s)
- Azadeh Nilghaz
- Institute for Frontier Materials, Deakin University, Waurn Ponds, VIC 3216, Australia
| | | | - Amir Amiri
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Junfei Tian
- State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Rong Cao
- Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou 571199, China
| | - Xungai Wang
- Institute for Frontier Materials, Deakin University, Waurn Ponds, VIC 3216, Australia
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21
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Xu W, Zhang Y, Chen H, Dong J, Khan R, Shen J, Liu H. DNAzyme signal amplification based on Au@Ag core-shell nanorods for highly sensitive SERS sensing miRNA-21. Anal Bioanal Chem 2022; 414:4079-4088. [PMID: 35419693 DOI: 10.1007/s00216-022-04053-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 03/13/2022] [Accepted: 03/30/2022] [Indexed: 11/24/2022]
Abstract
Here, we developed a surface-enhanced Raman scattering (SERS) sensor based on functionalized Au@Ag core-shell nanorods (Au@Ag NRs) and cascade DNAzyme amplifier (CSA) for sensitive and accurate determination of microRNA-21 (miRNA-21). The as-prepared SERS nanoprobes were composed of a thiol-modification hairpin probe (HP2)-functionalized Au@Ag NRs and hairpin DNAzyme (HP1-Dz). Compared with original gold nanorods, the silver shell caused an enhancement of plasmonic properties, resulting in a significant enhancement of Raman signals. In the presence of target miRNAs, the hairpin construction of HP1-Dz changed due to DNA/RNA hybridization; subsequently, the DNAzyme-catalyzed cleaving process changed, and the Raman signals of the SERS nanoprobes gradually "turned off" with time elapse because of the dissociation of the Raman reporter from the surface of Au@Ag NRs. Hence, based on this principle, the proposed SERS sensor exhibited good linearity in the range 0.5 fM to 10 nM for miRNA-21 detection with a detection limit (LOD) of 0.5 fM. The proposed SERS platform has potential application in quantitative and precise detection of miRNA-21 in human serum.
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Affiliation(s)
- Wei Xu
- Key Laboratory for Biological Medicine in Shandong Universities, Weifang Key Laboratory for Antibodies Medicine, School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China.
| | - Yu Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Hao Chen
- Key Laboratory for Biological Medicine in Shandong Universities, Weifang Key Laboratory for Antibodies Medicine, School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Jinhua Dong
- Key Laboratory for Biological Medicine in Shandong Universities, Weifang Key Laboratory for Antibodies Medicine, School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Ranjha Khan
- The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230027, China
| | - Jianjun Shen
- The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230027, China
| | - Honglin Liu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
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22
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Chang KJ, Chen HR, Hung CH, Hung PS, Tseng HF, Lin YL, Hsu HH, Kao TH, Wu PW, Liau I, Chen JT. Highly Ordered Polymer Nanostructures via Solvent On-Film Annealing for Surface-Enhanced Raman Scattering. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:801-809. [PMID: 34951309 DOI: 10.1021/acs.langmuir.1c02818] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Surface-enhanced Raman scattering (SERS) has been a useful sensing technique, in which inelastic light scattering can be significantly enhanced by absorbing molecules onto rough metal surfaces or nanoparticles. Although many methods have been developed to prepare SERS substrates, it is still highly desirable and challenging to design SERS substrates, especially with highly ordered and controlled three-dimensional (3D) structures. In this work, we develop novel SERS substrates with regular volcano-shaped polymer structures using the versatile solvent on-film annealing method. Polystyrene (PS) nanospheres are first synthesized by surfactant-free emulsion polymerization and assembled on poly(methyl methacrylate) (PMMA) films. After annealing in acetic acid vapors, PMMA chains are selectively swollen and wet the surfaces of the PS nanospheres. By selectively removing the PS nanospheres using cyclohexane, volcano-shaped PMMA films can be obtained. Compared with flat PMMA films with water contact angles of ∼74°, volcano-shaped PMMA films exhibit higher water contact angles of ∼110° due to the sharp features and rough surfaces. The volcano-shaped PMMA films are then coated with gold nanoparticles (AuNPs) as SERS substrates. Using rhodamine 6G as the probe molecules, the SERS results show that the Raman signals of the volcano-shaped PMMA/AuNP hybrid substrates are much higher than those of the pristine PMMA films and PMMA films with AuNPs. For the volcano-shaped PMMA/AuNP hybrid substrates using 400 nm PS nanospheres, a high enhancement factor (EF) value of ∼1.12 × 105 with a detection limit of 10-8 M is obtained in a short integration time of 1 s. A linear calibration line with an R2 value of 0.918 is also established, demonstrating the ability to determine the concentrations of the analytes. This work offers significant insight into developing novel SERS substrates, which is crucial for improving the detection limits of analytes.
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Affiliation(s)
- Kai-Jie Chang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Huan-Ru Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Chiang-Hung Hung
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Pei-Sung Hung
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Hsiao-Fan Tseng
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yu-Liang Lin
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Hsun-Hao Hsu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Tzu-Hsun Kao
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Pu-Wei Wu
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Ian Liau
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
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23
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Cai S, Jiao T, Wang L, Wang F, Chen Q. Electrochemical sensing of nitrofurazone on Ru(bpy) 32+ functionalized polyoxometalate combined with graphene modified electrode. Food Chem 2022; 378:132084. [PMID: 35030464 DOI: 10.1016/j.foodchem.2022.132084] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 12/27/2021] [Accepted: 01/04/2022] [Indexed: 11/18/2022]
Abstract
Nitrofurazone is forbidden to be used in aquaculture, but it is often used illegally because of its good bactericidal effect, and its content in animals is extremely low and difficult to detect directly. Hence, a functionalized polyoxometalate combined with graphene modified electrodes through layer-by-layer assembly has achieved a sensitive detection of nitrofurazone in a pH = 6 Na2HPO4-citrate buffer solution and its detection limit as low as 0.08952 μM. Nitrofurazone has accelerated its electron transfer through [Ru-PMo12/PDDA-GO]3 modified electrode, thus realizing its direct detection at low levels through actual samples. This study provides a new perspective for the direct detection of nitrofurazone by electrochemical methods, which is of great significance for the supervision of nitrofurazone and the improvement of the quality and safety of aquatic products.
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Affiliation(s)
- Sixue Cai
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China
| | - Tianhui Jiao
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China
| | - Li Wang
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China.
| | - Fang Wang
- College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, PR China.
| | - Quansheng Chen
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China.
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24
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Yu Z, Huang L, Zhang Z, Li G. Simultaneous and Accurate Quantification of Multiple Antibiotics in Aquatic Samples by Surface-Enhanced Raman Scattering Using a Ti 3C 2T x/DNA/Ag Membrane Substrate. Anal Chem 2021; 93:13072-13079. [PMID: 34515467 DOI: 10.1021/acs.analchem.1c03019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Rapid and accurate analysis of multiple targets in complex samples is still a big challenge in the fast detection field. Herein, we developed a rapid and accurate strategy for simultaneous quantification of trace multiple antibiotic residues in complex aquatic samples by surface-enhanced Raman scattering (SERS) using a Ti3C2Tx/DNA/Ag membrane substrate. This membrane substrate was proven to have good uniformity, reproducibility, stability, and SERS activity by a series of characterizations. Also, this substrate combined excellent electromagnetic enhancement and chemical enhancement effects, which endowed it with good sensitivity and selectivity during SERS analysis. It achieved the integration of multitarget separation, enrichment, and in situ detection, which significantly improved the selectivity, sensitivity, accuracy, and detection throughput by membrane substrate coupling with SERS for real-sample analysis. Finally, this rapid SERS analysis strategy was successfully applied to the simultaneous quantification of trace nitrofurantoin (NFT) and ofloxacin (OFX) in aquatic samples. It was observed that trace NFT and OFX were actually detected and simultaneously quantified to be 8.0-13.7 and 42.6-49.1 μg/kg in aquatic samples, respectively, with good recoveries of 88.0-107% and relative standard deviations of 0.3-5.5%. The results were verified by a traditional high-performance liquid chromatography method with relative errors of -9.8 to 5.3%. This strategy provided a methodological reference for accurate SERS quantification of multiple targets in complex samples.
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Affiliation(s)
- Zhongning Yu
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Lu Huang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Zhuomin Zhang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Gongke Li
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
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