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Dadmehr M, Mortezaei M, Korouzhdehi B. Dual mode fluorometric and colorimetric detection of matrix metalloproteinase MMP-9 as a cancer biomarker based on AuNPs@gelatin/AuNCs nanocomposite. Biosens Bioelectron 2022; 220:114889. [DOI: 10.1016/j.bios.2022.114889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 11/08/2022]
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A Colorimetric Ag + Probe for Food Real-Time Visual Monitoring. NANOMATERIALS 2022; 12:nano12091389. [PMID: 35564098 PMCID: PMC9101572 DOI: 10.3390/nano12091389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/09/2022] [Accepted: 04/14/2022] [Indexed: 02/05/2023]
Abstract
Monitoring food quality throughout the food supply chain is critical to ensuring global food safety and minimizing food losses. Here we find that simply by mixing an aqueous solution of sugar-stabilized Ag+ and amines in an open vessel leads to the generation of Ag NPs and an intelligent evaluation system based on a colorimetric Ag+ probe is developed for real-time visual monitoring of food freshness. The self-assembly reaction between methylamine (MA) generated during meat storage and the colorimetric Ag+ probe produces different color changes that indicate changes in the quality of the meat. The colorimetric Ag+ probe was integrated into food packaging systems for real-time monitoring of chilled broiler meat freshness. The proposed evaluation system provides a versatile approach for detecting biogenic amines and monitoring chilled broiler meat freshness and it has the advantages of high selectivity, real-time and on-site measurements, sensitivity, economy, and safety and holds great public health significance.
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Zhong Q, Zhang K, Huang X, Lu Y, Zhao J, He Y, Liu B. In situ ratiometric SERS imaging of intracellular protease activity for subtype discrimination of human breast cancer. Biosens Bioelectron 2022; 207:114194. [PMID: 35325718 DOI: 10.1016/j.bios.2022.114194] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 03/08/2022] [Accepted: 03/14/2022] [Indexed: 11/24/2022]
Abstract
Accurate discrimination between different cells at the molecular level is of fundamental importance for disease diagnosis. Endogenous proteases are such molecular candidates for cancer cell subtype study. But in situ probing their activity in live cells remains challenging for surface-enhanced Raman scattering (SERS). Here, we present a sensitive ratio-type SERS nanoprobe for imaging of matrix metalloproteinase-2 (MMP-2) in different cancer cells subtypes. The nanoprobe contained three components: a plasmon-active gold nanoparticle as the SERS enhancing matrix, Raman dye rhodamine B (Rh B)-labelled substrate peptides as the specific MMP-2 recognizer, and 2-naphthalenethiol (2-NT) as the internal standard. MMP-2-responsive cleavage of peptides from the nanoprobe surface results in decrease or even disappearance of SERS emission of Rh B, which was ratioed over the emission of 2-NT for the quantification of MMP-2 activity. Both in-tube assay and in-cell imaging results show that the MMP-responsive nanoprobe can work and serve to differentiate the normal breast cells from the tumorous ones, to differentiate two breast cancer cell subtypes with a different degree of malignancy. We believe that this SERS nanoprobe could find a wide application in the fields of tumor biology and accurate disease diagnosis.
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Affiliation(s)
- Qingmei Zhong
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Institute of Biomedical Sciences, Fudan University, Shanghai, 200438, China
| | - Kun Zhang
- Shanghai Institute for Pediatric Research, Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
| | - Xuedong Huang
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Institute of Biomedical Sciences, Fudan University, Shanghai, 200438, China
| | - Yanwei Lu
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Institute of Biomedical Sciences, Fudan University, Shanghai, 200438, China
| | - Jinzhi Zhao
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Institute of Biomedical Sciences, Fudan University, Shanghai, 200438, China
| | - Ying He
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Institute of Biomedical Sciences, Fudan University, Shanghai, 200438, China
| | - Baohong Liu
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Institute of Biomedical Sciences, Fudan University, Shanghai, 200438, China.
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Sivashanmugan K, Zhao Y, Wang AX. Tetrahydrocannabinol Sensing in Complex Biofluid with Portable Raman Spectrometer Using Diatomaceous SERS Substrates. BIOSENSORS 2019; 9:E125. [PMID: 31615082 PMCID: PMC6955980 DOI: 10.3390/bios9040125] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/04/2019] [Accepted: 10/11/2019] [Indexed: 02/07/2023]
Abstract
Using thin-layer chromatography in tandem with surface-enhanced Raman spectroscopy (TLC-SERS) and tetrahydrocannabinol (THC) sensing in complex biological fluids is successfully conducted with a portable Raman spectrometer. Both THC and THC metabolites are detected from the biofluid of marijuana-users as biomarkers for identifying cannabis exposure. In this article, ultra-sensitive SERS substrates based on diatomaceous earth integrated with gold nanoparticles (Au NPs) were employed to detect trace levels of cannabis biomarkers in saliva. Strong characteristic THC and THC metabolite SERS peaks at 1601 and 1681 cm-1 were obtained despite the moderate interference of biological molecules native to saliva. Urine samples were also analyzed, but they required TLC separation of THC from the urine sample to eliminate the strong influence of urea and other organic molecules. TLC separation of THC from the urine was performed by porous microfluidic channel devices using diatomaceous earth as the stationary phase. The experimental results showed clear separation between urea and THC, and strong THC SERS characteristic peaks. Principal component analysis (PCA) was used to analyze the SERS spectra collected from various THC samples. The spectra in the principal component space were well clustered for each sample type and share very similar scores in the main principal component (PC1), which can serve as the benchmark for THC sensing from complex SERS spectra. Therefore, we proved that portable Raman spectrometers can enable an on-site sensing capability using diatomaceous SERS substrates to detect THC in real biological solutions. This portable THC sensing technology will play pivotal roles in forensic analysis, medical diagnosis, and public health.
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Affiliation(s)
- Kundan Sivashanmugan
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA.
| | - Yong Zhao
- School of Electrical Engineering, The Key Laboratory of Measurement Technology and Instrumentation of Hebei Province, Yanshan University, Qinhuangdao 066004, China.
| | - Alan X Wang
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA.
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Sivashanmugan K, Lee H, Syu CH, Liu BHC, Liao JD. Nanoplasmonic Au/Ag/Au nanorod arrays as SERS-active substrate for the detection of pesticides residue. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.03.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Sivashanmugan K, Liu PC, Tsai KW, Chou YN, Lin CH, Chang Y, Wen TC. An anti-fouling nanoplasmonic SERS substrate for trapping and releasing a cationic fluorescent tag from human blood solution. NANOSCALE 2017; 9:2865-2874. [PMID: 28169391 DOI: 10.1039/c6nr08077d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In bioenvironmental detection, surface-enhanced Raman scattering (SERS) signals are greatly affected by anti-specific biomolecule adsorption, which generates strong background noise, reducing detection sensitivity and selectivity. It is thus necessary to modify the SERS substrate surface to make it anti-fouling to maintain excellent SERS signals. Herein, we propose a zwitterionic copolymer, namely poly(glycidyl methacrylate-co-sulfobetaine methacrylate) (poly(GMA-co-SBMA)), for the surface modification of SERS substrates, which were fabricated and characterized spectroscopically. The copolymer was grafted onto Ag nanocubes (NCs) on an Ag surface with massive nanogaps via 1,2-ethanedithiol, which acted as a metal-insulator-metal (MIM) substrate. The high density of poly(GMA-co-SBMA) grafted near NCs favored the formation of connections between adjacent NCs, causing strong surface plasmon resonance at these junctions. With the zwitterionic-copolymer-modified surface, the adhesion of large biomolecules in platelet-rich plasma (PRP) solution can be effectively resisted, as determined from immunoassay and fibrinogen adsorption results. The SERS signals for malachite green (MG) in PRP solution (10-6 M) were effectively distinguished using the copolymer-grafted MIM substrate. MG was deposited on adjacent copolymer-grafted NCs, which amplified the SERS signals. Moreover, the copolymer connected adjacent NCs, inducing the electromagnetic effect at copolymer-grafted surfaces, which improved the SERS mechanism. The hydration process restructured the MG-trapped copolymer-grafted surface, decreasing the number of MG characteristic peak regions and increasing that of the copolymer regions. These results reveal that grafting a copolymer onto an MIM substrate allows MG to be easily trapped and released in complex biomatrices and increases surface reproducibility due to anti-fouling, leading to high SERS enhancement.
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Affiliation(s)
- Kundan Sivashanmugan
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
| | - Po-Chun Liu
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
| | - Kai-Wei Tsai
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
| | - Ying-Nien Chou
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
| | - Chen-Hsueh Lin
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
| | - Yung Chang
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University, Chung-Li, Taoyuan 320, Taiwan
| | - Ten-Chin Wen
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
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Probed adhesion force of living lung cells with a tip-modified atomic force microscope. Biointerphases 2016; 11:04B311. [PMID: 27998155 DOI: 10.1116/1.4972242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The mechanical properties of the extracellular matrix play an important role in bio-microenvironment activities. Herein, atomic force microscope (AFM) was used to measure the interaction between Au and Ag nanoparticle (NP) clusters on the surface of human fetal lung cells. Using (3-mercapto-propyl) triethoxysilane (MPTMS), NP clusters were grafted onto the apex of AFM tip, and then, the adhesion force between the tip and the cell was analyzed. The measured adhesion force increased from 92 pN for AFM tip to 332 pN for that modified with MPTMS. The increase is most probably contributed by the nonspecific interactions between the apex of the modified AFM tip and the surface of the cells. The adhesion forces between the surface of NPs clusters grafted AFM tip and that of lung cells were dramatically reduced as NPs clusters were replaced by MPTMS. For the former, as the Au NPs cluster was applied, the adhesion force reached to 122 pN, whereas it significantly augmented with the addition of the cluster's size and dimension on the AFM tip. For the case of Ag cluster grafted on AFM tip, its adhesion force with the surface of the cells significantly lowered and reduced to 56 pN. Presumably, the electrostatic or van der Waals force between the two surfaces results in the variation of measurements. It is also very likely that the cell-surface interactions are probably varied by the nature of the contact surfaces, like the force-distance of attraction. The result is significant for understanding the the nature of the interactions between the surface of NPs and the membrane of lung cells.
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The size effect of silver nanocubes on gap-mode surface enhanced Raman scattering substrate. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.10.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Chang CC, Chen LY, Yang KH, Chen QY, Liang YC, Lin SY, Liu YC. Surface-enhanced Raman scattering on a silver film-modified Au nanoparticle-decorated SiO 2 mask array. RSC Adv 2015. [DOI: 10.1039/c5ra11183h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
SERS of R6G absorbed on this developed array exhibits a higher intensity by ca. 30-fold, as compared with that of R6G absorbed on the Au NP-based array without the modification of Ag films.
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Affiliation(s)
- Chi-Ching Chang
- Graduate Institute of Clinical Medicine
- School of Medicine
- College of Medicine
- Taipei Medical University
- Taipei 11031
| | - Liang-Yih Chen
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 10607
- Taiwan
| | - Kuang-Hsuan Yang
- Department of Materials Science and Engineering
- Vanung University
- Chung-Li City
- Taiwan
| | - Qing-Ye Chen
- Department of Materials Science and Engineering
- Vanung University
- Chung-Li City
- Taiwan
| | - Yu-Chih Liang
- School of Medical Laboratory Science and Biotechnology
- College of Medical Science and Technology
- Taipei Medical University
- Taipei 11031
- Taiwan
| | - Shyr-Yi Lin
- Department of General Medicine
- School of Medicine
- College of Medicine
- Taipei Medical University
- Taipei 11031
| | - Yu-Chuan Liu
- Department of Biochemistry and Molecular Cell Biology
- School of Medicine
- College of Medicine
- Taipei Medical University
- Taipei 11031
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