1
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Zhang H, Zhang H, Sikdar D, Liu X, Yang Z, Cheng W, Chen Y. Jellyfish-like Gold Nanowires as FlexoSERS Sensors for Sweat Analysis. NANO LETTERS 2024; 24:11269-11278. [PMID: 39208279 DOI: 10.1021/acs.nanolett.4c02907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
We introduce the FlexoSERS sensor, which is notable for its high stretchability, sensitivity, and patternability. Featuring a hierarchically oriented jellyfish-like architecture constructed from stretchable gold nanowires, this sensor provides an ultrasensitive SERS signal even under 50% strain, with an enhancement factor (EF) of 3.3 × 1010. Impressively, this heightened performance remains consistently robust across 2,500 stretch-release cycles. The integration of nanowires with 3D-printed hydrogel enables a customizable FlexoSERS sensor, facilitating localized sweat collection and detection. The FlexoSERS sensor successfully detects and quantifies uric acid (UA) in both artificial and human sweat and functions as a pH sensor with repeatability and sensitivity across a pH range of 4.2-7.8, enabling real-time sweat monitoring during exercise. In summary, the rational architectural design, scalable fabrication process, and hydrogel integration collectively position this nanowire-based FlexoSERS sensor as a highly promising platform for customizable wearable sweat diagnostics.
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Affiliation(s)
- Heng Zhang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
- Southeast University-Monash University Joint Graduate School, Suzhou 215123, China
| | - Hanqiang Zhang
- Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China
| | - Debabrata Sikdar
- Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam India, 781039
| | - Xuanchi Liu
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Zongru Yang
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
| | - Wenlong Cheng
- Faculty of Engineering, The University of Sydney, Darlington, NSW 2008, Australia
| | - Yi Chen
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
- Southeast University-Monash University Joint Graduate School, Suzhou 215123, China
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2
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Chisanga M, Masson JF. Machine Learning-Driven SERS Nanoendoscopy and Optophysiology. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2024; 17:313-338. [PMID: 38701442 DOI: 10.1146/annurev-anchem-061622-012448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
A frontier of analytical sciences is centered on the continuous measurement of molecules in or near cells, tissues, or organs, within the biological context in situ, where the molecular-level information is indicative of health status, therapeutic efficacy, and fundamental biochemical function of the host. Following the completion of the Human Genome Project, current research aims to link genes to functions of an organism and investigate how the environment modulates functional properties of organisms. New analytical methods have been developed to detect chemical changes with high spatial and temporal resolution, including minimally invasive surface-enhanced Raman scattering (SERS) nanofibers using the principles of endoscopy (SERS nanoendoscopy) or optical physiology (SERS optophysiology). Given the large spectral data sets generated from these experiments, SERS nanoendoscopy and optophysiology benefit from advances in data science and machine learning to extract chemical information from complex vibrational spectra measured by SERS. This review highlights new opportunities for intracellular, extracellular, and in vivo chemical measurements arising from the combination of SERS nanosensing and machine learning.
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Affiliation(s)
- Malama Chisanga
- Département de Chimie, Institut Courtois, Quebec Center for Advanced Materials, Regroupement Québécois sur les Matériaux de Pointe, and Centre Interdisciplinaire de Recherche sur le Cerveau et l'Apprentissage, Université de Montréal, Montréal, Québec, Canada;
| | - Jean-Francois Masson
- Département de Chimie, Institut Courtois, Quebec Center for Advanced Materials, Regroupement Québécois sur les Matériaux de Pointe, and Centre Interdisciplinaire de Recherche sur le Cerveau et l'Apprentissage, Université de Montréal, Montréal, Québec, Canada;
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3
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Skinner W, Robinson N, Hardisty GR, Gray RD, Campbell CJ. SERS Microsensors for the Study of pH Regulation in Cystic Fibrosis Patient-Derived Airway Cultures. ACS Sens 2024; 9:2550-2557. [PMID: 38659220 PMCID: PMC11129347 DOI: 10.1021/acssensors.4c00279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/09/2024] [Accepted: 04/17/2024] [Indexed: 04/26/2024]
Abstract
Acidification of the airway surface liquid in the respiratory system could play a role in the pathology of Cystic Fibrosis, but its low volume and proximity to the airway epithelium make it a challenging biological environment in which to noninvasively collect pH measurements. To address this challenge, we explored surface enhanced Raman scattering microsensors (SERS-MS), with a 4-mercaptobenzoic acid (MBA) pH reporter molecule, as pH sensors for the airway surface liquid of patient-derived in vitro models of the human airway. Using air-liquid interface (ALI) cultures to model the respiratory epithelium, we show that SERS-MS facilitates the optical measurement of trans-epithelial pH gradients between the airway surface liquid and the basolateral culture medium. SERS-MS also enabled the successful quantification of pH changes in the airway surface liquid following stimulation of the Cystic Fibrosis transmembrane conductance regulator (CFTR, the apical ion channel that is dysfunctional in Cystic Fibrosis airways). Finally, the influence of CFTR mutations on baseline airway surface liquid pH was explored by using SERS-MS to measure the pH in ALIs grown from Cystic Fibrosis and non-Cystic Fibrosis donors.
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Affiliation(s)
- William
H. Skinner
- EaStCHEM
School of Chemistry, The University of Edinburgh, King’s Buildings, Mayfield
Road, Edinburgh EH9 3FJ, U.K.
| | - Nicola Robinson
- Centre
for Inflammation Research, The Queen’s Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, U.K.
| | - Gareth R. Hardisty
- Centre
for Inflammation Research, The Queen’s Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, U.K.
| | - Robert D. Gray
- School
of Infection and Immunity, University of
Glasgow, Sir Graeme Davies
Building, University Place G12 8QQ, Scotland
| | - Colin J. Campbell
- EaStCHEM
School of Chemistry, The University of Edinburgh, King’s Buildings, Mayfield
Road, Edinburgh EH9 3FJ, U.K.
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4
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Kou Y, Zhang XG, Li H, Zhang KL, Xu QC, Zheng QN, Tian JH, Zhang YJ, Li JF. SERS-Based Hydrogen Bonding Induction Strategy for Gaseous Acetic Acid Capture and Detection. Anal Chem 2024; 96:4275-4281. [PMID: 38409670 DOI: 10.1021/acs.analchem.3c05905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Surface-enhanced Raman scattering (SERS) can overcome the existing technological limitations, such as complex processes and harsh conditions in gaseous small-molecule detection, and advance the development of real-time gas sensing at room temperature. In this study, a SERS-based hydrogen bonding induction strategy for capturing and sensing gaseous acetic acid is proposed for the detection demands of gaseous acetic acid. This addresses the challenges of low adsorption of gaseous small molecules on SERS substrates and small Raman scattering cross sections and enables the first SERS-based detection of gaseous acetic acid by a portable Raman spectrometer. To provide abundant hydrogen bond donors and acceptors, 4-mercaptobenzoic acid (4-MBA) was used as a ligand molecule modified on the SERS substrate. Furthermore, a sensing chip with a low relative standard deviation (RSD) of 4.15% was constructed, ensuring highly sensitive and reliable detection. The hydrogen bond-induced acetic acid trapping was confirmed by experimental spectroscopy and density functional theory (DFT). In addition, to achieve superior accuracy compared to conventional methods, an innovative analytical method based on direct response hydrogen bond formation (IO-H/Iref) was proposed, enabling the detection of gaseous acetic acid at concentrations as low as 60 ppb. The strategy demonstrated a superior anti-interference capability in simulated breath and wine detection systems. Moreover, the high reusability of the chip highlights the significant potential for real-time sensing of gaseous acetic acid.
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Affiliation(s)
- Yichuan Kou
- College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xia-Guang Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, College of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Hongmei Li
- College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Kai-Le Zhang
- College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qing-Chi Xu
- College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qing-Na Zheng
- College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jing-Hua Tian
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, China
| | - Yue-Jiao Zhang
- College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jian-Feng Li
- College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, China
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China
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5
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Wu X, Yang K, He S, Zhu F, Kang S, Liu B, Sun C, Pang W, Wang Y. Dual-functional gold nanorods micro pattern guiding cell alignment and cellular microenvironment monitoring. J Colloid Interface Sci 2023; 647:429-437. [PMID: 37269739 DOI: 10.1016/j.jcis.2023.05.167] [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: 01/06/2023] [Revised: 05/10/2023] [Accepted: 05/27/2023] [Indexed: 06/05/2023]
Abstract
Surface topography has become a powerful tool to control cell behaviors, however, it's still difficult to monitor cellular microenvironment changes during topography-induced cell responses. Here, a dual-functional platform integrating cell alignment with extracellular pH (pHe) measurement is proposed. The platform is fabricated by assembling gold nanorods (AuNRs) into micro pattern via wettability difference interface method, which provides topographical cues and surface-enhanced Raman scattering (SERS) effect for cell alignment and biochemical detection respectively. Results demonstrate that contact guidance and cell morphology changes are achieved by the AuNRs micro pattern, and pHe are also obtained by the changes of SERS spectra during cell alignment, where the pHe near cytoplasm is lower than nucleus, revealing the heterogeneity of extracellular microenvironment. Moreover, a correlation between lower extracellular pH and higher cell migration ability is revealed, and AuNRs micro pattern can differentiate cells with different migration ability, which may be an inheritable character during cell division. Furthermore, mesenchymal stem cells response dramatically to AuNRs micro pattern, showing different morphology and increased pHe level, offering the potential of impacting stem cell differentiation. This approach provides a new idea for the research of cell regulation and response mechanism.
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Affiliation(s)
- Xiaoyu Wu
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Kai Yang
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Shan He
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Feng Zhu
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Shenghui Kang
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Bohua Liu
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Chongling Sun
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Wei Pang
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Yanyan Wang
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China.
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6
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Skinner WH, Robinson N, Hardisty GR, Fleming H, Geddis A, Bradley M, Gray RD, Campbell CJ. SERS microsensors for pH measurements in the lumen and ECM of stem cell derived human airway organoids. Chem Commun (Camb) 2023; 59:3249-3252. [PMID: 36815668 DOI: 10.1039/d2cc06582g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Patient derived organoids have the potential to improve the physiological relevance of in vitro disease models. However, the 3D architecture of these self-assembled cellular structures makes probing their biochemistry more complex than in traditional 2D culture. We explore the application of surface enhanced Raman scattering microsensors (SERS-MS) to probe local pH gradients within patient derived airway organoid cultures. SERS-MS consist of solid polymer cores decorated with surface immobilised gold nanoparticles which are functionalised with pH sensitive reporter molecule 4-mercaptobenzoic acid (MBA). We demonstrate that by mixing SERS-MS into the extracellular matrix (ECM) of airway organoid cultures the probes can be engulfed by expanding organoids and report on local pH in the organoid lumen and ECM.
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Affiliation(s)
- William H Skinner
- School of Physics and Astronomy, University of Exeter, Exeter EX4 4QL, UK
| | - Nicola Robinson
- Centre for Inflammation Research, The Queen's Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Gareth R Hardisty
- Centre for Inflammation Research, The Queen's Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Holly Fleming
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, Scotland, UK
| | - Ailsa Geddis
- Centre for Inflammation Research, The Queen's Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
- Joseph Black Building, The University of Edinburgh, David Brewster Rd, Edinburgh EH9 3FJ, UK.
| | - Mark Bradley
- Joseph Black Building, The University of Edinburgh, David Brewster Rd, Edinburgh EH9 3FJ, UK.
| | - Robert D Gray
- Centre for Inflammation Research, The Queen's Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Colin J Campbell
- Joseph Black Building, The University of Edinburgh, David Brewster Rd, Edinburgh EH9 3FJ, UK.
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7
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Zhong Q, Huang X, Zhang R, Zhang K, Liu B. Optical Sensing Strategies for Probing Single-Cell Secretion. ACS Sens 2022; 7:1779-1790. [PMID: 35709496 DOI: 10.1021/acssensors.2c00474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Measuring cell secretion events is crucial to understand the fundamental cell biology that underlies cell-cell communication, migration, proliferation, and differentiation. Although strategies targeting cell populations have provided significant information about live cell secretion, they yield ensemble profiles that obscure intrinsic cell-to-cell variations. Innovation in single-cell analysis has made breakthroughs allowing accurate sensing of a wide variety of secretions and their release dynamics with high spatiotemporal resolution. This perspective focuses on the power of single-cell protocols to revolutionize cell-secretion analysis by allowing real-time and real-space measurements on single live cell resolution. We begin by discussing recent progress on single-cell bioanalytical techniques, specifically optical sensing strategies such as fluorescence-, surface plasmon resonance-, and surface-enhanced Raman scattering-based strategies, capable of in situ real-time monitoring of single-cell released ions, metabolites, proteins, and vesicles. Single-cell sensing platforms which allow for high-throughput high-resolution analysis with enough accuracy are highlighted. Furthermore, we discuss remaining challenges that should be addressed to get a more comprehensive understanding of secretion biology. Finally, future opportunities and potential breakthroughs in secretome analysis that will arise as a result of further development of single-cell sensing approaches are discussed.
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Affiliation(s)
- Qingmei Zhong
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China
| | - Xuedong Huang
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China
| | - Rongrong Zhang
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, 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
| | - Baohong Liu
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China
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8
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De Marchi S, García-Lojo D, Bodelón G, Pérez-Juste J, Pastoriza-Santos I. Plasmonic Au@Ag@mSiO 2 Nanorattles for In Situ Imaging of Bacterial Metabolism by Surface-Enhanced Raman Scattering Spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:61587-61597. [PMID: 34927427 PMCID: PMC8719315 DOI: 10.1021/acsami.1c21812] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
It is well known that microbial populations and their interactions are largely influenced by their secreted metabolites. Noninvasive and spatiotemporal monitoring and imaging of such extracellular metabolic byproducts can be correlated with biological phenotypes of interest and provide new insights into the structure and development of microbial communities. Herein, we report a surface-enhanced Raman scattering (SERS) hybrid substrate consisting of plasmonic Au@Ag@mSiO2 nanorattles for optophysiological monitoring of extracellular metabolism in microbial populations. A key element of the SERS substrate is the mesoporous silica shell encapsulating single plasmonic nanoparticles, which furnishes colloidal stability and molecular sieving capabilities to the engineered nanostructures, thereby realizing robust, sensitive, and reliable measurements. The reported SERS-based approach may be used as a powerful tool for deciphering the role of extracellular metabolites and physicochemical factors in microbial community dynamics and interactions.
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Affiliation(s)
- Sarah De Marchi
- CINBIO,
Universidade de Vigo, Departamento de Química Física, Campus Universitario As Lagoas, Marcosende, 36310 Vigo, Spain
- Galicia
Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36310 Vigo, Spain
| | - Daniel García-Lojo
- CINBIO,
Universidade de Vigo, Departamento de Química Física, Campus Universitario As Lagoas, Marcosende, 36310 Vigo, Spain
- Galicia
Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36310 Vigo, Spain
| | - Gustavo Bodelón
- CINBIO,
Universidade de Vigo, Departamento de Química Física, Campus Universitario As Lagoas, Marcosende, 36310 Vigo, Spain
- Galicia
Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36310 Vigo, Spain
| | - Jorge Pérez-Juste
- CINBIO,
Universidade de Vigo, Departamento de Química Física, Campus Universitario As Lagoas, Marcosende, 36310 Vigo, Spain
- Galicia
Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36310 Vigo, Spain
| | - Isabel Pastoriza-Santos
- CINBIO,
Universidade de Vigo, Departamento de Química Física, Campus Universitario As Lagoas, Marcosende, 36310 Vigo, Spain
- Galicia
Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36310 Vigo, Spain
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9
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Yang K, Yao X, Liu B, Ren B. Metallic Plasmonic Array Structures: Principles, Fabrications, Properties, and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007988. [PMID: 34048123 DOI: 10.1002/adma.202007988] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/22/2021] [Indexed: 05/18/2023]
Abstract
The vast development of nanofabrication has spurred recent progress for the manipulation of light down to a region much smaller than the wavelength. Metallic plasmonic array structures are demonstrated to be the most powerful platform to realize controllable light-matter interactions and have found wide applications due to their rich and tunable optical performance through the morphology and parameter engineering. Here, various light-management mechanisms that may exist on metallic plasmonic array structures are described. Then, the typical techniques for fabrication of metallic plasmonic arrays are summarized. Next, some recent applications of plasmonic arrays are reviewed, including plasmonic sensing, surface-enhanced spectroscopies, plasmonic nanolasing, and perfect light absorption. Lastly, the existing challenges and perspectives for metallic plasmonic arrays are discussed. The aim is to provide guidance for future development of metallic plasmonic array structures.
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Affiliation(s)
- Kang Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xu Yao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Bowen Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Bin Ren
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China
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10
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Liu YQ, Zhu W, Hu JM, Shen AG. Recent advances in plasmonic Prussian blue-based SERS nanotags for biological application. NANOSCALE ADVANCES 2021; 3:6568-6579. [PMID: 36132655 PMCID: PMC9417754 DOI: 10.1039/d1na00464f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 10/19/2021] [Indexed: 05/07/2023]
Abstract
The reliability and reproducibility of surface-enhanced Raman scattering (SERS) technology is still a great challenge in bio-related analysis. Prussian blue (PB)-based SERS tags have attracted increasing interest for improving these deficiencies due to its unique Raman band (near 2156 cm-1) in the Raman-silent region, providing zero-background bio-Raman labels without interference from endogenous biomolecules. Moreover, the stable PB shell consisting of multiple layers of CN- reporters ensure a stable and strong Raman signal output, avoiding the desorption of the Raman reporter from the plasmonic region by the competitive adsorption of the analyte. More importantly, they possess outstanding multiplexing potential in biological analysis owing to the adjustable Raman shift with unique narrow spectral widths. Despite more attention having been attracted to the structure and preparation of PB-based SERS tags for their better biological applications over the past five years, there is still a great challenge for SERS suitable for applications in the actual environment. The biological applications of PB-based SERS tags are comprehensively recounted in this minireview, mainly focusing on quantification analysis, multiple-spectral analysis and cell-imaging joint phototherapy. The prospects of PB-based SERS tags in clinical diagnosis and treatment are also discussed. This review aims to draw attention to the importance of SERS tags and provide a reference for the design and application of PB-based SERS tags in future bio-applications.
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Affiliation(s)
- Ya-Qin Liu
- College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Wei Zhu
- School of Printing and Packaging, Wuhan University Wuhan 430079 China
| | - Ji-Ming Hu
- College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Ai-Guo Shen
- School of Printing and Packaging, Wuhan University Wuhan 430079 China
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11
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Skinner WH, Chung M, Mitchell S, Akidil A, Fabre K, Goodwin R, Stokes AA, Radacsi N, Campbell CJ. A SERS-Active Electrospun Polymer Mesh for Spatially Localized pH Measurements of the Cellular Microenvironment. Anal Chem 2021; 93:13844-13851. [PMID: 34609126 DOI: 10.1021/acs.analchem.1c02530] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Extracellular pH (pHe) is an important chemical factor in many cellular processes and disease pathologies. The routine sampling of pHe in vitro could lead to innovative advances in therapeutics. To this end, we have fabricated a novel gold-coated polymer mesh, which facilitates the real-time measurement of pHe via surface-enhanced Raman scattering (SERS). In this proof of concept study, we apply our SERS sensor to measure metabolically induced changes in the pHe of carcinoma-derived cell line HepG2/C3A. We demonstrate that gold-coated polyurethane electrospun nanofibers (AuNF) have strong and reproducible SERS spectra of surface-adsorbed analytes. By functionalizing AuNF with pH-responsive reporter 4-mercaptobenzoic acid (MBA), we have developed an accurate pH SERS sensor for the extracellular microenvironment. We cultured HepG2/C3A on the surface of MBA-AuNF and measured an acidic shift in pHe at the cell-fiber interface. Following exposure to staurosporine, an apoptosis-inducing drug, we observed changes in the HepG2/C3A cellular morphology indicative of controlled cell death, and detected an increase in the pHe of HepG2/C3A. These results demonstrate how subtle changes in pHe, induced by the metabolic activity of cells, can be measured with our novel SERS sensor MBA-AuNF. The excellent pH measurement performance of MBA-AuNF provides a unique platform to study extracellular pH on the microscale and will help to deepen our understanding of pHe in disease pathology.
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Affiliation(s)
- William H Skinner
- EaStCHEM School of Chemistry, University of Edinburgh, The University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3FJ, United Kingdom
| | - Michael Chung
- School of Engineering, The University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JL, United Kingdom
| | - Stephen Mitchell
- School of Biological Sciences, The University of Edinburgh, Edinburgh EH9 3BF, United Kingdom
| | - Asli Akidil
- Clinical Pharmacology and Safety Sciences, Biopharmaceuticals R&D, AstraZeneca, Cambridge, CB4 0WG, United Kingdom
| | - Kristin Fabre
- Innovation Scientist, Baylor College of Medicine, Centre for Space Medicine, Houston, Texas 77030, United States
| | - Richard Goodwin
- Clinical Pharmacology and Safety Sciences, Biopharmaceuticals R&D, AstraZeneca, Cambridge, CB4 0WG, United Kingdom
| | - Adam A Stokes
- School of Engineering, The University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JL, United Kingdom
| | - Norbert Radacsi
- School of Engineering, The University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JL, United Kingdom
| | - Colin J Campbell
- EaStCHEM School of Chemistry, University of Edinburgh, The University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3FJ, United Kingdom
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Zhang L, Zhao Q, Jiang Z, Shen J, Wu W, Liu X, Fan Q, Huang W. Recent Progress of SERS Nanoprobe for pH Detecting and Its Application in Biological Imaging. BIOSENSORS 2021; 11:282. [PMID: 34436084 PMCID: PMC8392648 DOI: 10.3390/bios11080282] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/05/2021] [Accepted: 08/15/2021] [Indexed: 02/07/2023]
Abstract
As pH value almost affects the function of cells and organisms in all aspects, in biology, biochemical and many other research fields, it is necessary to apply simple, intuitive, sensitive, stable detection of pH and base characteristics inside and outside the cell. Therefore, many research groups have explored the design and application of pH probes based on surface enhanced Raman scattering (SERS). In this review article, we discussed the basic theoretical background of explaining the working mechanism of pH SERS sensors, and also briefly described the significance of cell pH measurement, and simply classified and summarized the factors that affected the performance of pH SERS probes. Some applications of pH probes based on surface enhanced Raman scattering in intracellular and extracellular pH imaging and the combination of other analytical detection techniques are described. Finally, the development prospect of this field is presented.
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Affiliation(s)
- Lei Zhang
- Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, China; (Q.Z.); (Z.J.); (J.S.); (X.L.); (Q.F.); (W.H.)
| | - Qianqian Zhao
- Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, China; (Q.Z.); (Z.J.); (J.S.); (X.L.); (Q.F.); (W.H.)
| | - Zhitao Jiang
- Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, China; (Q.Z.); (Z.J.); (J.S.); (X.L.); (Q.F.); (W.H.)
| | - Jingjing Shen
- Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, China; (Q.Z.); (Z.J.); (J.S.); (X.L.); (Q.F.); (W.H.)
| | - Weibing Wu
- Jiangsu Provincial Key Lab of Pulp & Paper Science & Technology, Nanjing Forestry University, 159 Longpan Road, Nanjing 210023, China;
| | - Xingfen Liu
- Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, China; (Q.Z.); (Z.J.); (J.S.); (X.L.); (Q.F.); (W.H.)
| | - Quli Fan
- Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, China; (Q.Z.); (Z.J.); (J.S.); (X.L.); (Q.F.); (W.H.)
| | - Wei Huang
- Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, China; (Q.Z.); (Z.J.); (J.S.); (X.L.); (Q.F.); (W.H.)
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, China
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, China
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13
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Romo-Herrera J, Juarez-Moreno K, Guerrini L, Kang Y, Feliu N, Parak W, Alvarez-Puebla R. Paper-based plasmonic substrates as surface-enhanced Raman scattering spectroscopy platforms for cell culture applications. Mater Today Bio 2021; 11:100125. [PMID: 34485892 PMCID: PMC8397899 DOI: 10.1016/j.mtbio.2021.100125] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/24/2021] [Accepted: 07/29/2021] [Indexed: 12/24/2022] Open
Abstract
The engineering of advanced materials capable of mimicking the cellular micro-environment while providing cells with physicochemical cues is central for cell culture applications. In this regard, paper meets key requirements in terms of biocompatibility, hydrophilicity, porosity, mechanical strength, ease of physicochemical modifications, cost, and ease of large-scale production, to be used as a scaffold material for biomedical applications. Most notably, paper has demonstrated the potential to become an attractive alternative to conventional biomaterials for creating two-dimensional (2D) and three-dimensional (3D) biomimetic cell culture models that mimic the features of in vivo tissue environments for improving our understanding of cell behavior (e.g. growth, cell migration, proliferation, differentiation and tumor metastasis) in their natural state. On the other hand, integration of plasmonic nanomaterials (e.g. gold nanoparticles) within the fibrous structure of paper opens the possibility to generate multifunctional scaffolds equipped with biosensing tools for monitoring different cell cues through physicochemical signals. Among different plasmonic based detection techniques, surface-enhanced Raman scattering (SERS) spectroscopy emerged as a highly specific and sensitive optical tool for its extraordinary sensitivity and the ability for multidimensional and accurate molecular identification. Thus, paper-based plasmonic substrates in combination with SERS optical detection represent a powerful future platform for monitoring cell cues during cell culture processes. To this end, in this review, we will describe the different methods for fabricating hybrid paper-plasmonic nanoparticle substrates and their use in combination with SERS spectroscopy for biosensing and, more specifically, in cell culture applications.
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Affiliation(s)
- J.M. Romo-Herrera
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México (CNyN-UNAM), Km 107 Carretera Tijuana-Ensenada, CP 22800 Ensenada, B.C., México
| | - K. Juarez-Moreno
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México (CNyN-UNAM), Km 107 Carretera Tijuana-Ensenada, CP 22800 Ensenada, B.C., México
- CONACYT, Catedras at Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México (CNyN-UNAM), Km 107 Carretera Tijuana-Ensenada, CP 22800 Ensenada, B.C., México
| | - L. Guerrini
- Department of Inorganic and Physical Chemistry, Universitat Rovira i Virgili. C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Y. Kang
- CHyN, Universität Hamburg, Luruper Chausse 149, 22761 Hamburg, Germany
| | - N. Feliu
- CHyN, Universität Hamburg, Luruper Chausse 149, 22761 Hamburg, Germany
- CAN, Fraunhofer Institute for Applied Polymer Research IAP, Grindelallee 117, 20146 Hamburg, Germany
| | - W.J. Parak
- CHyN, Universität Hamburg, Luruper Chausse 149, 22761 Hamburg, Germany
| | - R.A. Alvarez-Puebla
- Department of Inorganic and Physical Chemistry, Universitat Rovira i Virgili. C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
- ICREA, Passeja Lluis Companys 23, 08010 Barcelona, Spain
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14
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In situ potentiometric SECM monitoring of the extracellular pH changes under electrical stimulation using a dual-microelectrode tip. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115169] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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15
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Dabaghi M, Saraei N, Xu G, Chandiramohan A, Yeung J, Nguyen JP, Vukmirovic M, Selvaganapathy PR, Hirota JA. PHAIR: a biosensor for pH measurement in air-liquid interface cell culture. Sci Rep 2021; 11:3477. [PMID: 33568708 PMCID: PMC7875988 DOI: 10.1038/s41598-021-83189-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 01/28/2021] [Indexed: 01/30/2023] Open
Abstract
In many biological systems, pH can be used as a parameter to understand and study cell dynamics. However, measuring pH in live cell culture is limited by the sensor ion specificity, proximity to the cell surface, and scalability. Commercially available pH sensors are difficult to integrate into a small-scale cell culture system due to their size and are not cost-effective for disposable use. We made PHAIR-a new pH sensor that uses a micro-wire format to measure pH in vitro human airway cell culture. Tungsten micro-wires were used as the working electrodes, and silver micro-wires with a silver/silver chloride coating were used as a pseudo reference electrode. pH sensitivity, in a wide and narrow range, and stability of these sensors were tested in common standard buffer solutions as well as in culture media of human airway epithelial cells grown at the air-liquid interface in a 24 well cell culture plate. When measuring the pH of cells grown under basal and challenge conditions using PHAIR, cell viability and cytokine responses were not affected. Our results confirm that micro-wire-based sensors have the capacity for miniaturization and detection of diverse ions while maintaining sensitivity. This suggests the broad application of PHAIR in various biological experimental settings.
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Affiliation(s)
- Mohammadhossein Dabaghi
- Firestone Institute for Respiratory Health-Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON, L8N 4A6, Canada
| | - Neda Saraei
- Firestone Institute for Respiratory Health-Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON, L8N 4A6, Canada
| | - Gang Xu
- Firestone Institute for Respiratory Health-Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON, L8N 4A6, Canada
| | - Abiram Chandiramohan
- Firestone Institute for Respiratory Health-Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON, L8N 4A6, Canada
| | - Jonas Yeung
- Department of Mechanical Engineering, McMaster University, Hamilton, ON, L8S 4L7, Canada
| | - Jenny P Nguyen
- Firestone Institute for Respiratory Health-Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON, L8N 4A6, Canada
| | - Milica Vukmirovic
- Firestone Institute for Respiratory Health-Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON, L8N 4A6, Canada
| | - Ponnambalam Ravi Selvaganapathy
- Department of Mechanical Engineering, McMaster University, Hamilton, ON, L8S 4L7, Canada
- School of Biomedical Engineering, McMaster University, Hamilton, ON, L8S 4K1, Canada
| | - Jeremy A Hirota
- Firestone Institute for Respiratory Health-Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON, L8N 4A6, Canada.
- School of Biomedical Engineering, McMaster University, Hamilton, ON, L8S 4K1, Canada.
- Department of Pathology and Molecular Medicine, McMaster Immunology Research Centre, McMaster University, Hamilton, ON, L8S 4K1, Canada.
- Division of Respiratory Medicine, Department of Medicine, University of British Columbia, Vancouver, BC, V6H 3Z6, Canada.
- Department of Biology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.
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16
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Zhang Y, Jimenez de Aberasturi D, Henriksen-Lacey M, Langer J, Liz-Marzán LM. Live-Cell Surface-Enhanced Raman Spectroscopy Imaging of Intracellular pH: From Two Dimensions to Three Dimensions. ACS Sens 2020; 5:3194-3206. [PMID: 33092346 DOI: 10.1021/acssensors.0c01487] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Visualization of intracellular pH (i-pH) using surface-enhanced Raman spectroscopy (SERS) plays an important role toward understanding of cellular processes including their interactions with nanoparticles. However, conventional two-dimensional SERS imaging often fails to take into consideration changes occurring in the whole-cell volume. We therefore aimed at obtaining a comprehensive i-pH profile of living cells by means of three-dimensional (3D) SERS imaging, thereby visualizing dynamic i-pH distribution changes in a single cell. We devised here a biocompatible and highly stable SERS pH probe, comprising plasmonic gold nanostars functionalized with a pH-sensitive Raman reporter tag-4-mercaptobenzoic acid-and protected by a cationic biocompatible polymer, poly-l-arginine hydrochloride (PA). The positively charged PA coating plays a double role in enhancing cell uptake and providing chemical and colloidal stability in cellular environments. The SERS-active pH probe allowed visualization of local changes in i-pH, such as acidification during nanoparticle (NP) endocytosis. We provide evidence of i-pH changes during NP endocytosis via high-resolution 3D SERS imaging, thereby opening new avenues toward the application of SERS to intracellular studies.
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Affiliation(s)
- Yizhi Zhang
- Advanced Photonics Center, Southeast University, 210096 Nanjing, China
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Dorleta Jimenez de Aberasturi
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
- Centro de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (Ciber-BBN), Paseo de Miramón 194, 20014 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Malou Henriksen-Lacey
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
- Centro de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (Ciber-BBN), Paseo de Miramón 194, 20014 Donostia-San Sebastián, Spain
| | - Judith Langer
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Luis M. Liz-Marzán
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
- Centro de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (Ciber-BBN), Paseo de Miramón 194, 20014 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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17
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Fraser JP, Postnikov P, Miliutina E, Kolska Z, Valiev R, Švorčík V, Lyutakov O, Ganin AY, Guselnikova O. Application of a 2D Molybdenum Telluride in SERS Detection of Biorelevant Molecules. ACS APPLIED MATERIALS & INTERFACES 2020; 12:47774-47783. [PMID: 32985181 DOI: 10.1021/acsami.0c11231] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two-dimensional (2D) transition-metal dichalcogenides have become promising candidates for surface-enhanced Raman spectroscopy (SERS), but currently very few examples of detection of relevant molecules are available. Herein, we show the detection of the lipophilic disease marker β-sitosterol on few-layered MoTe2 films. The chemical vapor deposition (CVD)-grown films are capable of nanomolar detection, exceeding the performance of alternative noble-metal surfaces. We confirm that the enhancement occurs through the chemical enhancement (CE) mechanism via formation of a surface-analyte complex, which leads to an enhancement factor of ≈104, as confirmed by Fourier transform infrared (FTIR), UV-vis, and cyclic voltammetry (CV) analyses and density functional theory (DFT) calculations. Low values of signal deviation over a seven-layered MoTe2 film confirms the homogeneity and reproducibility of the results in comparison to noble-metal substrate analogues. Furthermore, β-sitosterol detection within cell culture media, a minimal loss of signal over 50 days, and the opportunity for sensor regeneration suggest that MoTe2 can become a promising new SERS platform for biosensing.
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Affiliation(s)
- James P Fraser
- School of Chemistry, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Pavel Postnikov
- Department of Solid State Engineering, University of Chemistry and Technology, 166 28 Prague, Czech Republic
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Elena Miliutina
- Department of Solid State Engineering, University of Chemistry and Technology, 166 28 Prague, Czech Republic
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Zdenka Kolska
- Faculty of Science, J. E. Purkyne University, 400 96 Usti nad Labem, Czech Republic
| | - Rashid Valiev
- Department of Solid State Engineering, University of Chemistry and Technology, 166 28 Prague, Czech Republic
- Department of Chemistry, University of Helsinki, Helsinki FIN-00014, Finland
| | - Vaclav Švorčík
- Department of Solid State Engineering, University of Chemistry and Technology, 166 28 Prague, Czech Republic
| | - Oleksiy Lyutakov
- Department of Solid State Engineering, University of Chemistry and Technology, 166 28 Prague, Czech Republic
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Alexey Y Ganin
- School of Chemistry, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Olga Guselnikova
- Department of Solid State Engineering, University of Chemistry and Technology, 166 28 Prague, Czech Republic
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
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18
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Zhao X, Campbell S, Wallace GQ, Claing A, Bazuin CG, Masson JF. Branched Au Nanoparticles on Nanofibers for Surface-Enhanced Raman Scattering Sensing of Intracellular pH and Extracellular pH Gradients. ACS Sens 2020; 5:2155-2167. [PMID: 32515184 DOI: 10.1021/acssensors.0c00784] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The development of plasmonic-active nanosensors for surface-enhanced Raman scattering (SERS) sensing is important for gaining knowledge on intracellular and extracellular chemical processes, hypoxia detection, and label-free detection of neurotransmitters and metabolites, among other applications in cell biology. The fabrication of SERS nanosensors for optophysiology measurements using substrates such as nanofibers with a uniform distribution of plasmonic nanoparticles (NPs) remains a critical hurdle. We report here on a strategy using block copolymer brush-layer templating and ligand exchange for fabricating highly reproducible and stable SERS-active nanofibers with tip diameters down to 60 nm and covered with well-dispersed and uniformly distributed branched AuNPs, which have intrinsic hotspots favoring inherently high plasmonic sensitivity. Among the SERS sensors investigated, those with Au nanostars with short branches [AuNS(S)s] exhibit the greatest SERS sensitivity, as verified also by COMSOL Multiphysics simulations. Functionalization of the AuNS(S)s with the pH-sensitive molecule, 4-mercaptobenzoic acid, led to SERS nanosensors capable of quantifying pH over a linear range of 6.5-9.5, covering the physiological range. These pH nanosensors were shown to be able to detect the intracellular pH as well as extracellular pH gradients of in vitro breast cancer cells with minimal invasiveness and improved SERS sensitivity, along with a high spatial resolution capability.
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Affiliation(s)
- Xingjuan Zhao
- Département de Chimie, Centre Québécois des Matériaux Fonctionnels (CQMF) and Regroupement Québécois des Matériaux de Pointe (RQMP), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec H3C 3J7, Canada
| | - Shirley Campbell
- Département de Pharmacologie et Physiologie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montreal, Quebec H3C 3J7, Canada
| | - Gregory Q. Wallace
- Département de Chimie, Centre Québécois des Matériaux Fonctionnels (CQMF) and Regroupement Québécois des Matériaux de Pointe (RQMP), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec H3C 3J7, Canada
| | - Audrey Claing
- Département de Pharmacologie et Physiologie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montreal, Quebec H3C 3J7, Canada
| | - C. Geraldine Bazuin
- Département de Chimie, Centre Québécois des Matériaux Fonctionnels (CQMF) and Regroupement Québécois des Matériaux de Pointe (RQMP), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec H3C 3J7, Canada
| | - Jean-Francois Masson
- Département de Chimie, Centre Québécois des Matériaux Fonctionnels (CQMF) and Regroupement Québécois des Matériaux de Pointe (RQMP), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec H3C 3J7, Canada
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19
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Real-time monitoring of extracellular pH using a pH-potentiometric sensing SECM dual-microelectrode. Anal Bioanal Chem 2020; 412:3737-3743. [DOI: 10.1007/s00216-020-02625-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/25/2020] [Accepted: 03/27/2020] [Indexed: 02/07/2023]
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20
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Huang Y, Liu W, Wang D, Gong Z, Fan M. Evaluation of the intrinsic pH sensing performance of surface-enhanced Raman scattering pH probes. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104565] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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21
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Jiao A, Zhang H, Xu L, Tian Y, Liu X, Chen M, Chen F. Core-shell Au@Ag nanodendrites supported on TiO 2 nanowires for blue laser beam-excited SERS-based pH sensing. OPTICS EXPRESS 2019; 27:23981-23995. [PMID: 31510294 DOI: 10.1364/oe.27.023981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 07/29/2019] [Indexed: 06/10/2023]
Abstract
The blue laser beam-excited surface-enhanced Raman scattering (SERS)-based pH sensing holds great promise for avoiding undesired thermal heating effect on some special temperature-vulnerable molecules, as compared to the vast majority studies by exciting in the red or near-infrared (NIR). Herein, we report an ingenious approach to support core-shell Au@Ag nanodendrites (NDs) on TiO2 nanowires, which can possess enhanced SERS activity under 473 nm laser excitation, owing to the improved charge-transfer effect on modified TiO2 support by inserting plasmonic Au@Ag. By using pH-indicating 4-mercaptobenzoic acid (4-MBA), the obtained TiO2/Au@Ag NDs can not only exhibit high sensitive linear-responses of pH changes ranging from pH 4.0 to 9.0 in different solutions (deionized water, NaCl, CaCl2, and MgCl2) but also provide excellent temperature stability under 4°C, 25°C and 37°C temperatures as well as good time stability after storage for 10 days. The established SERS-pH sensing by using shorter wavelength laser excitation is highly desirable for understanding physiological process in temperature-vulnerable microenvironment.
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22
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Capocefalo A, Mammucari D, Brasili F, Fasolato C, Bordi F, Postorino P, Domenici F. Exploring the Potentiality of a SERS-Active pH Nano-Biosensor. Front Chem 2019; 7:413. [PMID: 31231638 PMCID: PMC6568054 DOI: 10.3389/fchem.2019.00413] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/20/2019] [Indexed: 01/05/2023] Open
Abstract
The merging of the molecular specificity of Raman spectroscopy with the extraordinary optical properties of metallic nanoarchitectures is at the heart of Surface Enhanced Raman Spectroscopy (SERS), which in the last few decades proved its worth as powerful analytical tool with detection limits pushed to the single molecule recognition. Within this frame, SERS-based nanosensors for localized pH measurements have been developed and employed for a wide range of applications. Nevertheless, to improve the performances of such nanosensors, many key issues concerning their assembling, calibration and stability, that could significantly impact on the outcome of the pH measurements, need to be clarified. Here, we report on the detailed characterization of a case study SERS-active pH nanosensor, based on the conjugation of gold nanoparticles with the pH-sensitive molecular probe 4-mercaptobenzoic acid (4MBA). We analyzed and optimized all the aspects of the synthesis procedure and of the operating conditions to preserve the sensor stability and provide the highest responsiveness to pH. Exploiting the dependence of the SERS spectrum on the protonation degree of the carboxylic group at the edge of the 4MBA molecules, we derived a calibration curve for the nanosensor. The extrapolated working point, i.e., the pH value corresponding to the highest sensitivity, falls at pH 5.6, which corresponds to the pKa value of the molecule confined at the nanoparticle surface. A shift of the pKa of 4MBA, observed on the molecules confined at the nanostructured interface respect to the bulk counterpart, unveils the opportunity to assembly a SERS-based pH nanosensor with the ability to select its working point in the sensitivity region of interest, by acting on the nanostructured surface on which the molecular probe is confined. As a proof-of-concept, the nanosensor was successfully employed to measure the extracellular pH of normal and cancer cells, demonstrating the capability to discriminate between them.
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Affiliation(s)
| | - Daisy Mammucari
- Dipartimento di Fisica, Sapienza Università di Roma, Rome, Italy
| | - Francesco Brasili
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Rome, Italy
| | - Claudia Fasolato
- Dipartimento di Fisica, Sapienza Università di Roma, Rome, Italy
- Dipartimento di Fisica e Geologia, Università di Perugia, Perugia, Italy
| | - Federico Bordi
- Dipartimento di Fisica, Sapienza Università di Roma, Rome, Italy
| | - Paolo Postorino
- Dipartimento di Fisica, Sapienza Università di Roma, Rome, Italy
| | - Fabio Domenici
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Rome, Italy
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23
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You YH, Biswas A, Nagaraja AT, Hwang JH, Coté GL, McShane MJ. Multidomain-Based Responsive Materials with Dual-Mode Optical Readouts. ACS APPLIED MATERIALS & INTERFACES 2019; 11:14286-14295. [PMID: 30908908 DOI: 10.1021/acsami.8b21861] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Responsive materials designed to generate signals for both surface-enhanced Raman spectroscopy (SERS) and phosphorescence lifetime-"dual-mode"-measurements are described. To demonstrate this concept, we incorporated pH-sensitive and oxygen-sensitive microdomains into a single hydrogel that could be interrogated via SERS and phosphorescence lifetime, respectively. Microdomains consisted two populations of discrete microcapsules containing either (1) gold nanoparticles capped with pH-sensitive Raman molecules or (2) oxygen-sensitive benzoporphyrin phosphors. While the microdomain-embedded hydrogels presented an expected background luminescence, the pH-sensitive SERS signal was distinguishable for all tested conditions. Response characteristics of the dual sensor showed no significant difference when compared to standalone single-mode pH and oxygen sensors. In addition, the feasibility of redundant multimode sensing was proven by observing the reaction produced by glucose oxidase chemically cross-linked within the corresponding alginate matrix. Each optical mode showed a signal change proportional to glucose concentration with an opposite signal directionality. These results support the promise of micro-/nanocomposite materials to improve measurement accuracy using intrinsic multimode responses and built-in redundancy, concepts that have broad appeal in the chemical sensing and biosensing fields.
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Affiliation(s)
| | | | | | - Jin-Ha Hwang
- Department of Materials Science and Engineering , Hongik University , 121-791 Seoul , South Korea
| | - Gerard L Coté
- Center for Remote Health Technologies & Systems , Texas A&M Engineering Experiment Station , College Station , Texas 77840 , United States
| | - Michael J McShane
- Center for Remote Health Technologies & Systems , Texas A&M Engineering Experiment Station , College Station , Texas 77840 , United States
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Puppulin L, Hosogi S, Sun H, Matsuo K, Inui T, Kumamoto Y, Suzaki T, Tanaka H, Marunaka Y. Bioconjugation strategy for cell surface labelling with gold nanostructures designed for highly localized pH measurement. Nat Commun 2018; 9:5278. [PMID: 30538244 PMCID: PMC6290020 DOI: 10.1038/s41467-018-07726-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 11/20/2018] [Indexed: 01/08/2023] Open
Abstract
Regulation of intracellular pH is critically important for many cellular functions. The quantification of proton extrusion in different types of cells and physiological conditions is pivotal to fully elucidate the mechanisms of pH homeostasis. Here we show the use of gold nanoparticles (AuNP) to create a high spatial resolution sensor for measuring extracellular pH in proximity of the cell membrane. We test the sensor on HepG2 liver cancer cells and MKN28 gastric cancer cells before and after inhibition of Na+/H+ exchanger. The gold surface conjugation strategy is conceived with a twofold purpose: i) to anchor the AuNP to the membrane proteins and ii) to quantify the local pH from AuNP using surface enhanced Raman spectroscopy (SERS). The nanometer size of the cell membrane anchored sensor and the use of SERS enable us to visualize highly localized variation of pH induced by H+ extrusion, which is particularly upregulated in cancer cells.
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Affiliation(s)
- Leonardo Puppulin
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kyoto, 602-8566, Japan.
| | - Shigekuni Hosogi
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kyoto, 602-8566, Japan
- Department of Clinical and Translational Physiology, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Hongxin Sun
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-8577, Japan
| | - Kazuhiko Matsuo
- Department of Anatomy and Developmental Biology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kyoto, 602-8566, Japan
| | - Toshio Inui
- Research Center for Drug Discovery and Pharmaceutical Development Science, Research Organization of Science and Technology, Ritsumeikan University, Kusatsu, 525-8577, Japan
- Saisei Mirai Clinics, Moriguchi, 3-34-8 Okubocho, Moriguchi-shi, Osaka, 570-0012, Japan
| | - Yasuaki Kumamoto
- Department of Pathology and Cell Regulation, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kyoto, 602-8566, Japan
| | - Toshinobu Suzaki
- Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan
| | - Hideo Tanaka
- Department of Pathology and Cell Regulation, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kyoto, 602-8566, Japan
| | - Yoshinori Marunaka
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kyoto, 602-8566, Japan.
- Research Center for Drug Discovery and Pharmaceutical Development Science, Research Organization of Science and Technology, Ritsumeikan University, Kusatsu, 525-8577, Japan.
- Research Institute for Clinical Physiology, Kyoto Industrial Health Association, 67 Kitatsuboi-cho, Nishino-kyo, Nakagyo-ku, Kyoto, 604-8472, Japan.
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Qi G, Li H, Zhang Y, Li C, Xu S, Wang M, Jin Y. Smart Plasmonic Nanorobot for Real-Time Monitoring Cytochrome c Release and Cell Acidification in Apoptosis during Electrostimulation. Anal Chem 2018; 91:1408-1415. [PMID: 30457829 DOI: 10.1021/acs.analchem.8b04027] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cytochrome c (Cyt c) release and cellular pH change are two important mediators of apoptosis. Effective methods to regulate or monitor such two events are therefore highly desired for apoptosis research and cancer cell therapy. Herein, we exploited electrostimulation to regulate cellular Cyt c release and apoptosis process, and by designing and preparing a smart and efficient plasmonic nanorobot (with surface-modified Cyt c-specific aptamer and 4-mercaptobenzoic acid) that is capable of Cyt c capture and self-sensing, we achieved real-time SERS monitoring of dynamic Cyt c release and simultaneous cell acidification in apoptosis during electrostimulation. Distinctly different molecular stress responses in the two events for cancerous MCF-7 and HeLa cells and normal L929 cells were identified and revealed. The method and results are valuable and promising for apoptosis and Cyt c-mediated biology studies.
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Affiliation(s)
- Guohua Qi
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , Jilin P. R. China.,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Haijuan Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , Jilin P. R. China
| | - Ying Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , Jilin P. R. China.,University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Chuanping Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , Jilin P. R. China.,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Shuping Xu
- State Key Laboratory of Supramolecular Structure and Materials , Jilin University , 2699 Qianjin Avenue , Changchun 130012 , P. R. China
| | - Minmin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , Jilin P. R. China.,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Yongdong Jin
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , Jilin P. R. China
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Xu M, Ma X, Wei T, Lu ZX, Ren B. In Situ Imaging of Live-Cell Extracellular pH during Cell Apoptosis with Surface-Enhanced Raman Spectroscopy. Anal Chem 2018; 90:13922-13928. [PMID: 30394732 DOI: 10.1021/acs.analchem.8b03193] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Extracellular pH (pHe) is an important regulating factor that determines many cellular processes, including proliferation, differentiation, and apoptosis. In our previous work, we developed 4-MPy (4-mercaptopyridine) modified Au nanoparticles as intracellular pH sensors based on surface-enhanced Raman spectroscopy (SERS). We herein modified a Au-nanoparticle-assembled solid SERS substrate with 4-MPy molecules for in situ pHe sensing during apoptosis. We found a more acidic extracellular environment of cancer cells than that of normal cells from the pH imaging. We then in situ investigated the temporal and spatial evolution of pHe of cancer cells after addition of transforming growth factor-β (TGF-β). The pHe showed a fast decrease at the beginning, followed by a slow decrease until the complete loss of cellular functions, and the pH values in and out of the cells became similar. This work shows that our SERS substrate combined with an in situ cell culture system is well suitable for in situ pHe sensing during cell processes and will be a promising technique for understanding more pHe-related biological and pathological issues.
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Genetically encoded fluorescent indicators for live cell pH imaging. Biochim Biophys Acta Gen Subj 2018; 1862:2924-2939. [PMID: 30279147 DOI: 10.1016/j.bbagen.2018.09.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 09/17/2018] [Accepted: 09/17/2018] [Indexed: 02/04/2023]
Abstract
BACKGROUND Intracellular pH underlies most cellular processes. There is emerging evidence of a pH-signaling role in plant cells and microorganisms. Dysregulation of pH is associated with human diseases, such as cancer and Alzheimer's disease. SCOPE OF REVIEW In this review, we attempt to provide a summary of the progress that has been made in the field during the past two decades. First, we present an overview of the current state of the design and applications of fluorescent protein (FP)-based pH indicators. Then, we turn our attention to the development and applications of hybrid pH sensors that combine the capabilities of non-GFP fluorophores with the advantages of genetically encoded tags. Finally, we discuss recent advances in multicolor pH imaging and the applications of genetically encoded pH sensors in multiparameter imaging. MAJOR CONCLUSIONS Genetically encoded pH sensors have proven to be indispensable noninvasive tools for selective targeting to different cellular locations. Although a variety of genetically encoded pH sensors have been designed and applied at the single cell level, there is still much room for improvements and future developments of novel powerful tools for pH imaging. Among the most pressing challenges in this area is the design of brighter redshifted sensors for tissue research and whole animal experiments. GENERAL SIGNIFICANCE The design of precise pH measuring instruments is one of the important goals in cell biochemistry and may give rise to the development of new powerful diagnostic tools for various diseases.
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29
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Fathi F, Rashidi MR, Omidi Y. Ultra-sensitive detection by metal nanoparticles-mediated enhanced SPR biosensors. Talanta 2018; 192:118-127. [PMID: 30348366 DOI: 10.1016/j.talanta.2018.09.023] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/07/2018] [Accepted: 09/08/2018] [Indexed: 10/28/2022]
Abstract
Surface plasmon resonance (SPR), as an optical technique, has widely been used for the detection of biomarkers. Various investigations have been conducted to address the impacts of SPR on the kinetics of biological interactions between the ligand and its cognate bio-element. Up until now, different biofunctionalized metal nanoparticles (NPs) have been used for the ultrasensitive detection of biomarkers in the enhanced SPR. The enhancement of plasmonic properties and refractive index by means of metal NPs in SPR-based biosensors have significantly improved the diagnosis and monitoring of molecular markers in different disesaes including malignancies. In all the enhanced SPR systems utilized for the direct/sandwich assay, each NP is covalently modified with the analyte molecules like antibody (Ab) or a nucleic acid such as DNA/RNA aptamer (Ap) capable of interaction with the related biomarker(s). The increasing of density near the gold surface and plasmonic coupling of gold film and NPs can provide a large shift in the refractive index enhancing the plasmonic resonance because the SPR response unit is sensitive to alteration of the refractive index and the mass shifting onto the chip surface. In this study, we review the potential applications of two major NPs for enhancing the SPR signals for the detection of molecular biomarkers, including gold and magnetic NPs.
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Affiliation(s)
- Farzaneh Fathi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad-Reza Rashidi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yadollah Omidi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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30
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Xi W, Shrestha BK, Haes AJ. Promoting Intra- and Intermolecular Interactions in Surface-Enhanced Raman Scattering. Anal Chem 2017; 90:128-143. [DOI: 10.1021/acs.analchem.7b04225] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Wenjing Xi
- Department of Chemistry, University of Iowa, Iowa City, Iowa, 55242 United States
| | - Binaya K. Shrestha
- Department of Chemistry, University of Iowa, Iowa City, Iowa, 55242 United States
| | - Amanda J. Haes
- Department of Chemistry, University of Iowa, Iowa City, Iowa, 55242 United States
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31
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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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32
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Sun F, Galvan DD, Jain P, Yu Q. Multi-functional, thiophenol-based surface chemistry for surface-enhanced Raman spectroscopy. Chem Commun (Camb) 2017; 53:4550-4561. [DOI: 10.1039/c7cc01577a] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This article highlights the recent advances of thiophenol-based surface chemistry for the applications in surface-enhanced Raman spectroscopy (SERS).
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Affiliation(s)
- Fang Sun
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
| | - Daniel D. Galvan
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
| | - Priyesh Jain
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
| | - Qiuming Yu
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
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33
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Choi JR, Shin DM, Song H, Lee D, Kim K. Current achievements of nanoparticle applications in developing optical sensing and imaging techniques. NANO CONVERGENCE 2016; 3:30. [PMID: 28191440 PMCID: PMC5271156 DOI: 10.1186/s40580-016-0090-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 10/22/2016] [Indexed: 05/25/2023]
Abstract
Metallic nanostructures have recently been demonstrated to improve the performance of optical sensing and imaging techniques due to their remarkable localization capability of electromagnetic fields. Particularly, the zero-dimensional nanostructure, commonly called a nanoparticle, is a promising component for optical measurement systems due to its attractive features, e.g., ease of fabrication, capability of surface modification and relatively high biocompatibility. This review summarizes the work to date on metallic nanoparticles for optical sensing and imaging applications, starting with the theoretical backgrounds of plasmonic effects in nanoparticles and moving through the applications in Raman spectroscopy and fluorescence biosensors. Various efforts for enhancing the sensitivity, selectivity and biocompatibility are summarized, and the future outlooks for this field are discussed. Convergent studies in optical sensing and imaging have been emerging field for the development of medical applications, including clinical diagnosis and therapeutic applications.
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Affiliation(s)
- Jong-ryul Choi
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu, 41061 Republic of Korea
| | - Dong-Myeong Shin
- Research Center for Energy Convergence Technology, Pusan National University, Busan, 46241 Republic of Korea
| | - Hyerin Song
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241 Republic of Korea
| | - Donghoon Lee
- Department of Psychology, Pusan National University, Busan, 46241 Republic of Korea
| | - Kyujung Kim
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241 Republic of Korea
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34
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Sun F, Hung HC, Sinclair A, Zhang P, Bai T, Galvan DD, Jain P, Li B, Jiang S, Yu Q. Hierarchical zwitterionic modification of a SERS substrate enables real-time drug monitoring in blood plasma. Nat Commun 2016; 7:13437. [PMID: 27834380 PMCID: PMC5114600 DOI: 10.1038/ncomms13437] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 10/04/2016] [Indexed: 12/11/2022] Open
Abstract
Surface-enhanced Raman spectroscopy (SERS) is an ultrasensitive analytical technique with molecular specificity, making it an ideal candidate for therapeutic drug monitoring (TDM). However, in critical diagnostic media including blood, nonspecific protein adsorption coupled with weak surface affinities and small Raman activities of many analytes hinder the TDM application of SERS. Here we report a hierarchical surface modification strategy, first by coating a gold surface with a self-assembled monolayer (SAM) designed to attract or probe for analytes and then by grafting a non-fouling zwitterionic polymer brush layer to effectively repel protein fouling. We demonstrate how this modification can enable TDM applications by quantitatively and dynamically measuring the concentrations of several analytes—including an anticancer drug (doxorubicin), several TDM-requiring antidepressant and anti-seizure drugs, fructose and blood pH—in undiluted plasma. This hierarchical surface chemistry is widely applicable to many analytes and provides a generalized platform for SERS-based biosensing in complex real-world media. Despite the high sensitivity of SERS analysis, non-specific binding of proteins can impact the effectiveness in biologically important media such as blood. Here the authors report a SERS substrate modified to prevent protein fouling and demonstrate drug detection in undiluted plasma.
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Affiliation(s)
- Fang Sun
- Department of Chemical Engineering, University of Washington, Box 351750, Seattle, Washington 98195, USA
| | - Hsiang-Chieh Hung
- Department of Chemical Engineering, University of Washington, Box 351750, Seattle, Washington 98195, USA
| | - Andrew Sinclair
- Department of Chemical Engineering, University of Washington, Box 351750, Seattle, Washington 98195, USA
| | - Peng Zhang
- Department of Chemical Engineering, University of Washington, Box 351750, Seattle, Washington 98195, USA
| | - Tao Bai
- Department of Chemical Engineering, University of Washington, Box 351750, Seattle, Washington 98195, USA
| | - Daniel David Galvan
- Department of Chemical Engineering, University of Washington, Box 351750, Seattle, Washington 98195, USA
| | - Priyesh Jain
- Department of Chemical Engineering, University of Washington, Box 351750, Seattle, Washington 98195, USA
| | - Bowen Li
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, USA
| | - Shaoyi Jiang
- Department of Chemical Engineering, University of Washington, Box 351750, Seattle, Washington 98195, USA.,Department of Bioengineering, University of Washington, Seattle, Washington 98195, USA
| | - Qiuming Yu
- Department of Chemical Engineering, University of Washington, Box 351750, Seattle, Washington 98195, USA
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Jia Y, Shmakov SN, Pinkhassik E. Controlled Permeability in Porous Polymer Nanocapsules Enabling Size- and Charge-Selective SERS Nanoprobes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:19755-63. [PMID: 27186787 DOI: 10.1021/acsami.6b05522] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Nanoprobes for surface-enhanced Raman scattering (SERS) were prepared by creating nanorattles, or yolk-shell structures, containing gold or silver nanoparticles entrapped in porous hollow polymer nanocapsules. Controlled permeability of the shells of nanocapsules, achieved by controlling the pore size and/or shell surface functionalization, resulted in size- and charge-selective SERS analyses. For example, a trace amount of phenanthroline, a model analyte, was detected in human blood plasma without preprocessing of plasma samples. Comparison with commercially available nanoparticles showed superior performance of the newly prepared nanorattle structures.
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Affiliation(s)
- Ying Jia
- Department of Chemistry, Saint Louis University , 3501 Laclede Ave., St. Louis, Missouri 63103, United States
| | - Sergey N Shmakov
- Department of Chemistry, University of Connecticut , 55 North Eagleville Road, Storrs, Connecticut 06269, United States
| | - Eugene Pinkhassik
- Department of Chemistry, University of Connecticut , 55 North Eagleville Road, Storrs, Connecticut 06269, United States
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36
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Kang Z, Chen J, Ho HP. Surface-enhanced Raman scattering via entrapment of colloidal plasmonic nanocrystals by laser generated microbubbles on random gold nano-islands. NANOSCALE 2016; 8:10266-72. [PMID: 27125956 DOI: 10.1039/c6nr00375c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Surface-enhanced Raman scattering (SERS) typically requires hot-spots generated in nano-fabricated plasmonic structures. Here we report a highly versatile approach based on the use of random gold nano-island substrates (AuNIS). Hot spots are produced through the entrapment of colloidal plasmonic nano-crystals at the interface between AuNIS and a microbubble, which is generated from the localized plasmonic absorption of a focused laser beam. The entrapment strength is strongly dependent on the shape of the microbubble, which is in turn affected by the surface wetting characteristics of the AuNIS with respect to the solvent composition. The laser power intensity required to trigger microbubble-induced SERS is as low as 200 μW μm(-2). Experimental results indicate that the SERS limit of detection (LOD) for molecules of 4-MBA (with -SH bonds) is 10(-12) M, R6G or RhB (without -SH bonds) is 10(-7) M. The proposed strategy has potential applications in low-cost lab-on-chip devices for the label-free detection of chemical and biological molecules.
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Affiliation(s)
- Zhiwen Kang
- Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China.
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