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Ali R, Saleh SM. Design a Friendly Nanoscale Chemical Sensor Based on Gold Nanoclusters for Detecting Thiocyanate Ions in Food Industry Applications. BIOSENSORS 2024; 14:223. [PMID: 38785697 PMCID: PMC11118002 DOI: 10.3390/bios14050223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/25/2024]
Abstract
The surfactant cetyltrimethylammonium bromide (CTAB) induces the aggregation of gold nanoclusters (GNCs), leading to the development of a proposed fluorometric technique for detecting thiocyanate (SCN-) ions based on an anti-aggregation mechanism. This approach is straightforward to execute, highly sensitive, and selective. A significant quenching effect occurs in fluorescence upon using the aggregation agent CTAB in GNCs synthesis, resulting in a transition from intense red fluorescence to dim red. The decrease in fluorescence intensity of GNCs in the presence of CTAB is caused by the mechanism of fluorescence quenching mediated by aggregation. As the levels of SCN- rise, the fluorescence of CTAB-GNCs increases; this may be detected using spectrofluorometry or by visually inspecting under UV irradiation. The recovery of red fluorescence of CTAB-GNCs in the presence of SCN- enables the precise and discerning identification of SCN- within the concentration range of 2.86-140 nM. The minimum detectable concentration of the SCN- ions was 1 nM. The selectivity of CTAB-GNCs towards SCN- ions was investigated compared to other ions, and it was demonstrated that CTAB-GNCs exhibit exceptional selectivity. Furthermore, we believe that CTAB-GNCs have novel possibilities as favorable sensor candidates for various industrial applications. Our detection technique was validated by analyzing SCN- ions in milk samples, which yielded promising results.
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Affiliation(s)
- Reham Ali
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia;
- Chemistry Department, Faculty of Science, Suez University, Suez 43518, Egypt
| | - Sayed M. Saleh
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia;
- Department of Petroleum Refining and Petrochemical Engineering, Faculty of Petroleum and Mining Engineering, Suez University, Suez 43721, Egypt
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2
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Borah N, Kaka MN, Tamuly C. "AND"-Logic gate-based colorimetric detection of thiocyanate in milk samples using AgNP-EBF as plasmonic nano sensor. Food Chem 2023; 425:136522. [PMID: 37295214 DOI: 10.1016/j.foodchem.2023.136522] [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: 02/01/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
At present, the uses of food additives globally are much of a concern due to their after effects upon consumption in higher proportions. Although different sensing strategies are available for their detection, a need for simple, rapid and cost-effective strategy is much of a concern. Herein, we developed a plasmonic nano sensor i.e., AgNP-EBF which was considered as the transducer component for the AND logic gate-based system with Cu2+ and thiocyanate as inputs. Optimization and detection of thiocyanates were performed through UV-visible colorimetric sensing procedures where the logic gate allowed the detection of thiocyanate in the range of 100 nM-1 µM with LOD of 53.60 nM within 5-10 min. The proposed system showed high selectivity towards the detection of thiocyanate rather than other interferences. To check the credibility of the proposed system, the logic gate was applied for detection of thiocyanates in real milk samples.
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Affiliation(s)
- Nirangkush Borah
- Natural Product Chemistry Section, CSIR-North East Institute of Science and Technology. Branch Itanagar, Arunachal Pradesh 791110, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Maga Nana Kaka
- Natural Product Chemistry Section, CSIR-North East Institute of Science and Technology. Branch Itanagar, Arunachal Pradesh 791110, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Chandan Tamuly
- Natural Product Chemistry Section, CSIR-North East Institute of Science and Technology. Branch Itanagar, Arunachal Pradesh 791110, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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3
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Zhong L, Chen G, Yang T, Gu J, Ma C, Li L, Wu Y, Zhu C, Gao H, Yang Z, Hu A, Xu J, Qiu X, Shen J, Huang A. Al 2O 3@Ag composite structure as SERS substrate for sensitive detection of sodium thiocyanate. ANAL SCI 2023; 39:557-564. [PMID: 36680670 DOI: 10.1007/s44211-023-00268-x] [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: 11/01/2022] [Accepted: 01/04/2023] [Indexed: 01/22/2023]
Abstract
Sodium thiocyanate (NaSCN) can be added to fresh milk to enhance the sterilization ability of the lactoperoxidase system (LP system) in milk, extending shelf life. However, excessive intake of NaSCN can be harmful to human health because it can prevent absorption of iodine leading to disease. Also NaSCN can be used as a marker to distinguish smokers from non-smokers. In this work, we successfully synthesized meatball-like Al2O3@Ag composite structures as surface-enhanced Raman scattering (SERS) substrates using a simple wet chemical method adapted to conventional laboratory conditions. The substrate exhibited strong SERS enhancement for NaSCN. Under the optimal experiment conditions, we obtained a detection limit of 0.28 μg L-1 and a quantification limit of 1 μg L-1, R2 = 0.992. Based on the analysis of the intensity of SERS characteristic peak, the substrate had good reproducibility and uniformity. In summary, the Al2O3@Ag composite structure achieved sensitive SERS detection of NaSCN. Combining the facile and low-cost methods, we believe that the SERS detection method developed in this work can be used as a potential candidate for biosensing applications in the future.
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Affiliation(s)
- Lvyuan Zhong
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Guoqing Chen
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China.
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China.
| | - Taiqun Yang
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Jiao Gu
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Chaoqun Ma
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Lei Li
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Yamin Wu
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Chun Zhu
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Hui Gao
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Zichen Yang
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
- School of Internet of Things Engineering, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
| | - Anqi Hu
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Jinzeng Xu
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Xiaoqian Qiu
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Jialu Shen
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
| | - Anlan Huang
- School of Science, Jiangnan University, Lihu Avenue 1800, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Lihu Avenue 1800, Wuxi, 214122, China
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Formation of Gold Nanoparticle Self-Assembling Films in Various Polymer Matrices for SERS Substrates. MATERIALS 2022; 15:ma15155197. [PMID: 35897629 PMCID: PMC9332835 DOI: 10.3390/ma15155197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 02/04/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is regarded as a versatile tool for studying the composition and structure of matter. This work has studied the preparation of a SERS substrate based on a self-assembling plasmonic nanoparticle film (SPF) in a polymer matrix. Several synthesis parameters for the SPF are investigated, including the size of the particles making up the film and the concentration and type of the self-assembling agent. The result of testing systems with different characteristics is discussed using a model substance (pseudoisocyanin iodide). These models can be useful in the study of biology and chemistry. Research results contain the optimal parameters for SPF synthesis, maximizing the SERS signal. The optimal procedure for SPF assembly is determined and used for the synthesis of composite SPFs within different polymer matrices. SPF in a polymer matrix is necessary for the routine use of the SERS substrate for various types of analytes, including solid samples or those sensitive to contamination. Polystyrene, polyvinyl alcohol (PVA), and polyethylene are investigated to obtain a polymer matrix for SPF, and various methods of incorporating SPF into a polymer matrix are being explored. It is found that films with the best signal enhancement and reproducibility were obtained in polystyrene. The minimum detectable concentration for the SERS substrate obtained is equal to 10−10 M. We prepared a SERS substrate with an analytical enhancement factor of 2.7 × 104, allowing an increase in the detection sensitivity of analyte solutions of five orders of magnitude.
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Gao W, Wang T, Zhu C, Sha P, Dong P, Wu X. A 'sandwich' structure for highly sensitive detection of TNT based on surface-enhanced Raman scattering. Talanta 2022; 236:122824. [PMID: 34635214 DOI: 10.1016/j.talanta.2021.122824] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/15/2021] [Accepted: 08/23/2021] [Indexed: 12/29/2022]
Abstract
Ultra-sensitive detection of 2,4,6-trinitrotoluene (TNT) plays an important role in society security and human health. The Raman probe molecule p-aminothiophenol (PATP) can interact with TNT in three ways to form a TNT-PATP complex. In this paper, a 'sandwich' structure was developed to detect TNT with high sensitivity. Au nano-pillar arrays (AuNPAs) substrates modified by low-concentration PATP through Au-S bonds were acted as capture probe for TNT. Meanwhile, Ag nano-particles (AgNPs) modified by PATP at higher concentration were employed as tags for surface-enhanced Raman scattering (SERS). The formation of the TNT-PATP complex is not only the means by which AuNPAs substrates recognize and capture TNT, but also links the SERS tags to TNT, forming an AuNPAs-TNT-AgNPs 'sandwich' structure. The Raman signal of PATP was greatly enhanced mainly because novel 'hot spots' formed between the AuNPAs and AgNPs of the 'sandwich' structure. The Raman signal of PATP was further amplified by the chemical enhancement effect induced by the TNT-PATP complex formation. Based on this mechanism, the limit of detection (LOD) of TNT was determined from the Raman signal of PATP. The LOD reached 10-9 mg/mL (4.4 × 10-12 M), much lower than that suggested by the US Environmental Protection Agency (88 nM). Moreover, TNT was selectively detected over several TNT analogues 2,4-dinitrotoluene (DNT), p-nitrotoluene (NT) and hexogen (RDX). Finally, the 'sandwich' structure was successfully applied to TNT detection in environmental water and sand.
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Affiliation(s)
- Weiye Gao
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, China
| | - Tianran Wang
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, China
| | - Chushu Zhu
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, China
| | - Pengxing Sha
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, China
| | - Peitao Dong
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, China.
| | - Xuezhong Wu
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, China
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6
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Peroxidase-Like Activity of Silver Nanoparticles Loaded Filter Paper and its Potential Application for Sensing. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02202-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Aqueous Two-Phase System–Ion Chromatography for Determination of Thiocyanate in Raw Milk. SEPARATIONS 2021. [DOI: 10.3390/separations8110212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Thiocyanate could effectively inhibit bacteria in milk and extend the shelf life of milk. However, excessive addition will lead to health risks. Therefore, the determination of thiocyanate in raw milk has received a lot of attention, but the determination could be interfered with by other components in raw milk and the pre-treatment of raw milk is complex. In this study, a new pretreatment method combined with ion chromatography (IC) for rapid and sensitive determination of thiocyanate is proposed. An acetonitrile/(NH4)2SO4 aqueous two-phase system (ATPS) was developed for the separation and enrichment of thiocyanate in raw milk. Response surface methodology was performed to optimize the extraction conditions and an efficient pretreatment were obtained using ATPS composed of 42% acetonitrile (w/w) and 16% (NH4)2SO4 (w/w), with the pH 4.7, and the recovery of thiocyanate reached 107.24 ± 0.5%, and the enrichment ratio was 10.74 ± 0.03. IC was used to establish a thiocyanate enrichment method. The linear range was from 0.05 to 15 mg/L and R2 = 0.998, the limit of detection (LOD) was 0.2 μg/L, the limit of quantification (LQD) was 0.6 μg/L. Hence, it is feasible to combine ATPS with IC for the enrichment and determination of thiocyanate in raw milk.
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8
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Kang G, Jing Y, Liu W, Zhang C, Lu L, Chen C, Lu Y. Inhibited oxidase mimetic activity of palladium nanoplates by poisoning the active sites for thiocyanate detection. Analyst 2021; 146:1650-1655. [PMID: 33522553 DOI: 10.1039/d1an00002k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a novel convenient colorimetric method for sensitive detection of thiocyanate (SCN-) has been developed based on its suppression of the oxidase-like activity of palladium square nanoplates on reduced graphene oxide (Pd SP@rGO). SCN- can be adsorbed onto the surface of Pd SP@rGO via binding with Pd atoms and blocks the active sites that mimic oxidase, thus inhibiting the corresponding chromogenic reaction of 3,3',5,5'-tetramethylbenzidine, which has been comprehensively revealed by the UV-vis spectra and X-ray photoelectron spectra. The color fading exhibits SCN- concentration-dependent behavior and can be easily recorded by either UV-vis spectroscopy or naked-eye observation. Therefore, both quantitative detection via measurement of the decrease in absorbance and visual detection of SCN- can be achieved. Owing to the intrinsic amplification of signals by the oxidase-like activity of Pd SP@rGO without resorting to unstable and destructive H2O2, this assay is straightforward, robust and sensitive enough for the detection of SCN- in real samples. Furthermore, an "INH" logic gate is rationally constructed based on the proposed colorimetric SCN- sensor.
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Affiliation(s)
- Ge Kang
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Yijia Jing
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Wendong Liu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Chenghui Zhang
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Lixia Lu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan 250014, China
| | - Chuanxia Chen
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Yizhong Lu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
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Guo Y, Girmatsion M, Li HW, Xie Y, Yao W, Qian H, Abraha B, Mahmud A. Rapid and ultrasensitive detection of food contaminants using surface-enhanced Raman spectroscopy-based methods. Crit Rev Food Sci Nutr 2020; 61:3555-3568. [PMID: 32772549 DOI: 10.1080/10408398.2020.1803197] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
With the globalization of food and its complicated networking system, a wide range of food contaminants is introduced into the food system which may happen accidentally, intentionally, or naturally. This situation has made food safety a critical global concern nowadays and urged the need for effective technologies capable of dealing with the detection of food contaminants as efficiently as possible. Hence, Surface-enhanced Raman spectroscopy (SERS) has been taken as one of the primary choices for this case, due to its extremely high sensitivity, rapidity, and fingerprinting interpretation capabilities which account for its competency to detect a molecule up to a single level. Here in this paper, we present a comprehensive review of various SERS-based novel approaches applied for direct and indirect detection of single and multiple chemical and microbial contaminants in food, food products as well as water. The aim of this paper is to arouse the interest of researchers by addressing recent SERS-based, novel achievements and developments related to the investigation of hazardous chemical and microbial contaminants in edible foods and water. The target chemical and microbial contaminants are antibiotics, pesticides, food adulterants, Toxins, bacteria, and viruses. In this paper, different aspects of SERS-based reports have been addressed including synthesis and use of various forms of SERS nanostructures for the detection of a specific analyte, the coupling of SERS with other analytical tools such as chromatographic methods, combining analyte capture and recognition strategies such as molecularly imprinted polymers and aptasensor as well as using multivariate statistical analyses such as principal component analysis (PCA)to distinguish between results. In addition, we also report some strengths and limitations of SERS as well as future viewpoints concerning its application in food safety.
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Affiliation(s)
- Yahui Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Mogos Girmatsion
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technolgy, Massawa, Eritrea
| | - Hung-Wing Li
- Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Yunfei Xie
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - He Qian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Bereket Abraha
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technolgy, Massawa, Eritrea
| | - Abdu Mahmud
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technolgy, Massawa, Eritrea
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Lv L, He L, Jiang S, Chen J, Zhou C, Qu J, Lu Y, Hong P, Sun S, Li C. In situ surface-enhanced Raman spectroscopy for detecting microplastics and nanoplastics in aquatic environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 728:138449. [PMID: 32353796 DOI: 10.1016/j.scitotenv.2020.138449] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 03/17/2020] [Accepted: 04/02/2020] [Indexed: 05/24/2023]
Abstract
The detection of microplastics and nanoplastics in the environment, especially plastic particles in aquatic environments in situ, still faces challenges due to the limitations of current methods, instruments and size of plastic particles. This paper evaluates the potential of surface-enhanced Raman spectroscopy for the analysis of microplastics and nanoplastics. The condition of different tests including the volume ratio of sample to silver colloid, the concentrations of NaCl, and the concentrations of the samples, are assessed for the study of microplastics and nanoplastics (polystyrene (PS), polyethylene (PE) and polypropylene (PP)) in pure water and seawater. A method based on SERS, that uses silver colloid as the active substrate, is developed for the qualitative analysis of microplastics and nanoplastics in aquatic environments. The particle sizes of microplastics and nanoplastics include 100 nm, 500 nm and 10 μm. The Raman signals of microplastics and nanoplastics in pure water and seawater both show good enhancement efficiency. The optimal enhancement factor is 4 × 104. The SERS-based detection method overcomes the limitations of microplastics and nanoplastics in liquids and can detect 100 nm plastics down to 40 μg/mL. It provides more possibility for the rapid detection of microplastics and nanoplastics in aquatic environments in the future.
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Affiliation(s)
- Lulu Lv
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
| | - Lei He
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Shiqi Jiang
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
| | - Jinjun Chen
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Chunxia Zhou
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088, China; College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Junhao Qu
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yuqin Lu
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Pengzhi Hong
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088, China; College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Shengli Sun
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China.
| | - Chengyong Li
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088, China.
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11
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Hussain A, Pu H, Sun DW. Cysteamine modified core-shell nanoparticles for rapid assessment of oxamyl and thiacloprid pesticides in milk using SERS. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2020. [DOI: 10.1007/s11694-020-00448-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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12
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Hussain A, Pu H, Sun DW. SERS detection of sodium thiocyanate and benzoic acid preservatives in liquid milk using cysteamine functionalized core-shelled nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117994. [PMID: 31951941 DOI: 10.1016/j.saa.2019.117994] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 12/25/2019] [Accepted: 12/25/2019] [Indexed: 05/04/2023]
Abstract
A cysteamine functionalized core shelled nanoparticles (Au@Ag-CysNPs) was presented for simultaneous and rapid detection of sodium thiocyanate (STC) and benzoic acid (BA) preservatives in liquid milk using surface-enhanced Raman spectroscopy (SERS) technique. A spectrum covering 350-2350 cm-1 region was selected to detect STC with concentrations ranging from 0.5 to 10 mg/L and BA with concentrations ranging from 15 to 240 mg/L in milk samples. Characterization of nanoparticles using high-resolution TEM confirmed that the successful synthesis of Au@AgNPs with core (gold) size of 28 nm and shell (silver) thickness of about 5 nm was grafted with 120 μL of 0.1 nM cysteamine hydrochloride. Results showed that Au@Ag-CysNPs could be used to detect STC up to 0.03 mg/L with a limit of quantification (LOQ) of 0.039 mg/L and a coefficient of determination (R2) of 0.9833 in the milk sample. For detecting BA, it could be screened up to 9.8 mg/L with LOQ of 10.2 mg/L and R2 of 0.9903. The proposed substrate was also highly sensitive and the employed method involved only minor sample pretreatment steps. It is thus hoped that the new substrate could be used in the screening of prohibited chemicals in complex food matrices in future studies.
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Affiliation(s)
- Abid Hussain
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Hongbin Pu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Da-Wen Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Food Refrigeration and Computerized Food Technology (FRCFT), Agriculture and Food Science Centre, University College Dublin, National University of Ireland, Belfield, Dublin 4, Ireland.
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13
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Surface-enhanced Raman spectroscopy (SERS) investigations of saliva for oral cancer diagnosis. Lasers Med Sci 2020; 35:1393-1401. [PMID: 32170505 DOI: 10.1007/s10103-020-02988-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 02/25/2020] [Indexed: 12/17/2022]
Abstract
Saliva could be an optimal sample for non-invasive cancer detection, as it contains plenty of proteins and metabolites which can reflect the health status of an individual. Moreover, pairing it with high-sensitivity, label-free detection techniques could prove successful for early cancer diagnosis. In this study, we explore the enhancement of salivary characteristic Raman bands by using label-free, ultrasensitive surface-enhanced Raman scattering (SERS) based on gold nanoparticles. SERS maps were acquired from dry samples of saliva supernatant mixed with Au colloidal nanoparticles, which was then pipetted on clean glass slides. The SERS spectra presented a high variability of signal intensities and frequency shifts. However, several reproducible SERS spectra showing well-resolved bands were obtained at certain locations on the maps, where Au nanoparticles clustered together during the air-drying. The healthy and oral cancer saliva could be differentiated using principal components analysis based on several SERS bands assigned mainly to amino acids and proteins. Moreover, thiocyanate Raman modes were detected in saliva samples of both smoking and non-smoking volunteers and cancer patients. The analysis indicated that the cancer group displayed an overall higher level of the 2126 cm-1 band area assigned to C-N stretching vibrations of thiocyanate.
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14
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Falamas A, Faur CI, Baciut M, Rotaru H, Chirila M, Cinta Pinzaru S, Hedesiu M. Raman Spectroscopic Characterization of Saliva for the Discrimination of Oral Squamous Cell Carcinoma. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1719129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- A. Falamas
- Molecular and Biomolecular Physics, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
| | - C. I. Faur
- Department of Oral Radiology, Faculty of Dental Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - M. Baciut
- Department of Oral and Maxillofacial Surgery, “Iuliu-Hateganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - H. Rotaru
- Department of Oral and Maxillofacial Surgery, “Iuliu-Hateganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - M. Chirila
- Department of ENT Surgery, “Iuliu-Hateganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - S. Cinta Pinzaru
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, Cluj-Napoca, Romania
| | - M. Hedesiu
- Department of Oral Radiology, Faculty of Dental Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
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15
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Lei T, Huang T, Wang T, Yu P, Qing T, Nie B. Nano-fluorescent probes based on DNA-templated copper nanoclusters for fast sensing of thiocyanate. NEW J CHEM 2020. [DOI: 10.1039/d0nj03742g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A fast and label-free fluorescent sensor was developed to determine SCN−via inhibiting the formation of DNA-templated copper nanoclusters (CuNCs).
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Affiliation(s)
- Tao Lei
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Ting Huang
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Tianze Wang
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Peng Yu
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Taiping Qing
- College of Environment and Resources
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Beixi Nie
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
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16
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Balan V, Mihai CT, Cojocaru FD, Uritu CM, Dodi G, Botezat D, Gardikiotis I. Vibrational Spectroscopy Fingerprinting in Medicine: from Molecular to Clinical Practice. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2884. [PMID: 31489927 PMCID: PMC6766044 DOI: 10.3390/ma12182884] [Citation(s) in RCA: 162] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/01/2019] [Accepted: 09/03/2019] [Indexed: 12/12/2022]
Abstract
In the last two decades, Fourier Transform Infrared (FTIR) and Raman spectroscopies turn out to be valuable tools, capable of providing fingerprint-type information on the composition and structural conformation of specific molecular species. Vibrational spectroscopy's multiple features, namely highly sensitive to changes at the molecular level, noninvasive, nondestructive, reagent-free, and waste-free analysis, illustrate the potential in biomedical field. In light of this, the current work features recent data and major trends in spectroscopic analyses going from in vivo measurements up to ex vivo extracted and processed materials. The ability to offer insights into the structural variations underpinning pathogenesis of diseases could provide a platform for disease diagnosis and therapy effectiveness evaluation as a future standard clinical tool.
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Affiliation(s)
- Vera Balan
- Faculty of Medical Bioengineering, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Cosmin-Teodor Mihai
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Florina-Daniela Cojocaru
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Cristina-Mariana Uritu
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Gianina Dodi
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Doru Botezat
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Ioannis Gardikiotis
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania
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17
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Wang HX, Zhao YW, Li Z, Liu BS, Zhang D. Development and Application of Aptamer-Based Surface-Enhanced Raman Spectroscopy Sensors in Quantitative Analysis and Biotherapy. SENSORS (BASEL, SWITZERLAND) 2019; 19:E3806. [PMID: 31484403 PMCID: PMC6749344 DOI: 10.3390/s19173806] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/16/2019] [Accepted: 08/31/2019] [Indexed: 12/16/2022]
Abstract
Surface-enhanced Raman scattering (SERS) is one of the most special and important Raman techniques. An apparent Raman signal can be observed when the target molecules are absorbed onto the surface of the SERS substrates, especially on the "hot spots" of the substrates. Early research focused on exploring the highly active SERS substrates and their detection applications in label-free SERS technology. However, it is a great challenge to use these label-free SERS sensors for detecting hydrophobic or non-polar molecules, especially in complex systems or at low concentrations. Therefore, antibodies, aptamers, and antimicrobial peptides have been used to effectively improve the target selectivity and meet the analysis requirements. Among these selective elements, aptamers are easy to use for synthesis and modifications, and their stability, affinity and specificity are extremely good; they have been successfully used in a variety of testing areas. The combination of SERS detection technology and aptamer recognition ability not only improved the selection accuracy of target molecules, but also improved the sensitivity of the analysis. Variations of aptamer-based SERS sensors have been developed and have achieved satisfactory results in the analysis of small molecules, pathogenic microorganism, mycotoxins, tumor marker and other functional molecules, as well as in successful photothermal therapy of tumors. Herein, we present the latest advances of the aptamer-based SERS sensors, as well as the assembling sensing platforms and the strategies for signal amplification. Furthermore, the existing problems and potential trends of the aptamer-based SERS sensors are discussed.
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Affiliation(s)
- Hai-Xia Wang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yu-Wen Zhao
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zheng Li
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Bo-Shi Liu
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Di Zhang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
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Li B, Wang T, Su Q, Wu X, Dong P. Fabrication of Au Nanorods by the Oblique Angle Deposition Process for Trace Detection of Methamphetamine with Surface-Enhanced Raman Scattering. SENSORS 2019; 19:s19173742. [PMID: 31470612 PMCID: PMC6749386 DOI: 10.3390/s19173742] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/14/2019] [Accepted: 08/20/2019] [Indexed: 01/12/2023]
Abstract
Oblique angle deposition (OAD) is a simple, low cost, effective, and maskless nanofabrication process. It can offer a reliable method for the mass fabrication of uniform metal nanorods which can be used as the surface-enhanced Raman scattering (SERS) substrate with an excellent enhancing performance. Up to now, Ag nanorods SERS substrates have been extensively studied. However, Ag is chemically active and easy to oxidize under atmospheric conditions. Comparatively, Au is chemically stable and has better biocompatibility than Ag. In this paper, we in detail, studied the electromechanical (EM) field distribution simulation, fabrication, and application of Au nanorods (AuNRs) on trace detection of methamphetamine. According to the finite-difference time-domain (FDTD) calculation results, the maximum EM intensity can be obtained with the length of AuNRs to be 800 nm and the tilting angle of AuNRs to be 71° respectively. The aligned Au nanorod array substrate was fabricated by the OAD process. The two key process parameters, deposition angle, and deposition rate were optimized by experiments, which were 86° and 2 Å/s, respectively. Using 1,2-bis (4-pyridyl) ethylene (BPE) as the probe molecule, the limit of detection (LOD) was characterized to be 10−11 M. The AuNRs were also used to detect methamphetamine. The LOD can be down to M (i.e., 14.92 pg/ml), which meet the requirements of the on-site rapid detection of the methamphetamine in human urine (500 ng/ml).
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Affiliation(s)
- Baini Li
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
| | - Tianran Wang
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
| | - Qingqing Su
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
| | - Xuezhong Wu
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
| | - Peitao Dong
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China.
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