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Zheng P, Raj P, Liang L, Wu L, Paidi SK, Kim JH, Barman I. Label-free plasmonic spectral profiling of serum DNA. Biosens Bioelectron 2024; 254:116199. [PMID: 38492362 PMCID: PMC11056035 DOI: 10.1016/j.bios.2024.116199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/07/2024] [Accepted: 03/07/2024] [Indexed: 03/18/2024]
Abstract
Genetic and epigenetic modifications are linked to the activation of oncogenes and inactivation of tumor suppressor genes. Likewise, the associated molecular alternations can best inform precision medicine for personalized tumor treatment. Therefore, performing characterization of genetic and epigenetic alternations at the molecular level represents a crucial step in early diagnosis and/or therapeutics of cancer. However, the prevailing methods for DNA analysis involve a series of tedious and complicated steps, in which important genetic and epigenetic information could be lost or altered. To provide a potential approach for non-invasive, direct, and efficient DNA analysis, herein, we present a promising strategy for label-free molecular profiling of serum DNA in its pristine form by fusing surface-enhanced Raman spectroscopy with machine learning on a superior plasmonic nanostructured platform. Using DNA methylation and single-point mutation as two case studies, the presented strategy allows a well-balanced sensitive and specific detection of epigenetic and genetic changes at the single-nucleotide level in serum. We envision the presented label-free strategy could serve as a versatile tool for direct molecular profiling in pristine forms of a wide range of biological markers and aid biomedical diagnostics as well as therapeutics.
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Affiliation(s)
- Peng Zheng
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States
| | - Piyush Raj
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States
| | - Le Liang
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States; The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China; Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China
| | - Lintong Wu
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States
| | - Santosh Kumar Paidi
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States
| | - Jeong Hee Kim
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, United States; Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, United States; The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, United States.
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2
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Quan MX, Wu Y, Liu QY, Bu ZQ, Lu JY, Huang WT. Multimorphological Remoldable Silver Nanomaterials from Multimode and Multianalyte Colorimetric Sensing to Molecular Information Technology. ACS APPLIED MATERIALS & INTERFACES 2023; 15:38693-38706. [PMID: 37542464 DOI: 10.1021/acsami.3c06735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/07/2023]
Abstract
Inspired by life's interaction networks, ongoing efforts are to increase complexity and responsiveness of multicomponent interactions in the system for sensing, programmable control, or information processing. Although exquisite preparation of single uniform-morphology nanomaterials has been extremely explored, the potential value of facile and one-pot preparation of multimorphology nanomaterials has been seriously ignored. Here, multimorphological silver nanomaterials (M-AgN) prepared by one pot can form interaction networks with various analytes, which can be successfully realized from multimode and multianalyte colorimetric sensing to molecular information technology (logic computing and security). The interaction of M-AgN with multianalytes not only induces multisignal responses (including color, absorbance, and wavelength shift) for sensing metal ions (Cr3+, Hg2+, and Ni2+) but also can controllably reshape its four morphologies (nanodots, nanoparticles, nanorods, and nanotriangles). By abstracting binary relationships between analytes and response signals, multicoding parallel logic operations (including simple logic gates and cascaded circuits) can be performed. In addition, taking advantage of natural concealment and molecular response characteristics of M-AgN nanosystems can also realize molecular information encoding, encryption, and hiding. This research not only promotes the construction and application of multinano interaction systems based on multimorphology and multicomponent nanoset but also provides a new imagination for the integration of sensing, logic, and informatization.
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Affiliation(s)
- Min Xia Quan
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Provincial Key Laboratory of Microbial Molecular Biology, College of Life Science, Hunan Normal University, Changsha 410081, P. R. China
| | - Ying Wu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Provincial Key Laboratory of Microbial Molecular Biology, College of Life Science, Hunan Normal University, Changsha 410081, P. R. China
| | - Qing Yu Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Provincial Key Laboratory of Microbial Molecular Biology, College of Life Science, Hunan Normal University, Changsha 410081, P. R. China
| | - Zhen Qi Bu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Provincial Key Laboratory of Microbial Molecular Biology, College of Life Science, Hunan Normal University, Changsha 410081, P. R. China
| | - Jiao Yang Lu
- Hunan Key Laboratory of the Research and Development of Novel Pharmaceutical Preparations, Academician Workstation, Changsha Medical University, Changsha 410219, PR China
| | - Wei Tao Huang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Provincial Key Laboratory of Microbial Molecular Biology, College of Life Science, Hunan Normal University, Changsha 410081, P. R. China
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3
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Kim S, Palani S, Civitci F, Nan X, Ibsen S. A Versatile Synthetic Pathway for Producing Mesostructured Plasmonic Nanostructures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203940. [PMID: 36269871 DOI: 10.1002/smll.202203940] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/24/2022] [Indexed: 06/16/2023]
Abstract
Highly branched gold (Au) nanostructures with sharp tips are considered excellent substrates for surface-enhanced Raman scattering (SERS)-based sensing technologies. Here, a simple synthetic route for producing Au or Au-Ag bimetallic mesostructures with multiple sharpened tips in the presence of carbon quantum dots (CQDs) is presented. The morphologies of these mesostructured plasmonic nanoparticles (MSPNs) can be controlled by adjusting the concentration of CQDs, reaction temperatures, and seed particles. The optimal molar ratio for [HAuCl4 ]/[CQDs] is found to be ≈25. At this molar ratio, the diameters of MSPNs can be tuned from 80 to 200 nm by changing the reaction temperature from 25 to 80 °C. In addition, it is found that hierarchical MSPNs consisting of multiple Au nanocrystals can be formed over the entire seed particle surface. Finally, the SERS activity of these MSPNs is examined through the detection of rhodamine 6G and methylene blue. Of the different mesostructures, the bimetallic MSPNs have the highest sensitivity with the ability to detect 10-7 m of rhodamine 6G and 10-6 m of methylene blue. The properties of these MSPN particles, made using a novel synthetic process, make them excellent candidates for SERS-based chemical sensing applications.
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Affiliation(s)
- Sejung Kim
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97239, USA
- School of Chemical Engineering, School of Semiconductor and Chemical Engineering, Clean Energy Research Center, Jeonbuk National University, 567 Baekjedae-ro, Jeonju-si, Jeollabuk-do, 54896, South Korea
| | - Stephen Palani
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97239, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Fehmi Civitci
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97239, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Xiaolin Nan
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97239, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Stuart Ibsen
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97239, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
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4
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Mbituyimana B, Ma G, Shi Z, Yang G. Polymeric microneedles for enhanced drug delivery in cancer therapy. BIOMATERIALS ADVANCES 2022; 142:213151. [PMID: 36244246 DOI: 10.1016/j.bioadv.2022.213151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 10/06/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
Microneedles (MNs) have attracted the interest of researchers. Polymeric MNs offer tremendous promise as drug delivery vehicles for bio-applications because of their high loading capacity, strong patient adherence, excellent biodegradability and biocompatibility, low toxicity, and extremely cheap cost. Incorporating enhanced-property nanomaterials into polymeric MNs matrix increases their features such as better mechanical strength, sustained drug delivery, lower toxicity, and higher therapeutic effects, therefore considerably increasing their biomedical application. This paper discusses polymeric MN fabrication techniques and the present status of polymeric MNs as a delivery method for enhanced drug delivery in cancer therapeutic applications. Furthermore, the opportunities and challenges of polymeric MNs for improved drug delivery in cancer therapy are highlighted.
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Affiliation(s)
- Bricard Mbituyimana
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Guangrui Ma
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhijun Shi
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Guang Yang
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
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5
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Moretti M, Limongi T, Testi C, Milanetti E, De Angelis MT, Parrotta EI, Scalise S, Santamaria G, Allione M, Lopatin S, Torre B, Zhang P, Marini M, Perozziello G, Candeloro P, Pirri CF, Ruocco G, Cuda G, Di Fabrizio E. Direct Visualization and Identification of Membrane Voltage-Gated Sodium Channels from Human iPSC-Derived Neurons by Multiple Imaging and Light Enhanced Spectroscopy. SMALL METHODS 2022; 6:e2200402. [PMID: 35595684 DOI: 10.1002/smtd.202200402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/22/2022] [Indexed: 06/15/2023]
Abstract
In this study, transmission electron microscopy atomic force microscopy, and surface enhanced Raman spectroscopy are combined through a direct imaging approach, to gather structural and chemical information of complex molecular systems such as ion channels in their original plasma membrane. Customized microfabricated sample holder allows to characterize Nav channels embedded in the original plasma membrane extracted from neuronal cells that are derived from healthy human induced pluripotent stem cells. The identification of the channels is accomplished by using two different approaches, one of them widely used in cryo-EM (the particle analysis method) and the other based on a novel Zernike Polynomial expansion of the images bitmap. This approach allows to carry out a whole series of investigations, one complementary to the other, on the same sample, preserving its state as close as possible to the original membrane configuration.
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Affiliation(s)
- Manola Moretti
- King Abdullah University of Science and Technology, SMILEs lab, PSE Division, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Tania Limongi
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129, Torino, Italy
| | - Claudia Testi
- Center for Life Nanoscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy
| | - Edoardo Milanetti
- Center for Life Nanoscience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy
- Department of Physics, Sapienza University, Piazzale Aldo Moro 5, Rome, 00185, Italy
| | - Maria Teresa De Angelis
- Laboratory of Stem Cell Biology, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Elvira I Parrotta
- Laboratory of Stem Cell Biology, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Stefania Scalise
- Laboratory of Stem Cell Biology, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Gianluca Santamaria
- Laboratory of Stem Cell Biology, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Marco Allione
- King Abdullah University of Science and Technology, SMILEs lab, PSE Division, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Sergei Lopatin
- King Abdullah University of Science and Technology, Imaging and Characterization Core lab, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Bruno Torre
- King Abdullah University of Science and Technology, SMILEs lab, PSE Division, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Peng Zhang
- King Abdullah University of Science and Technology, SMILEs lab, PSE Division, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Monica Marini
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129, Torino, Italy
| | - Gerardo Perozziello
- BionNEM lab and Nanotechnology Research Center, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Patrizio Candeloro
- BionNEM lab and Nanotechnology Research Center, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Candido Fabrizio Pirri
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129, Torino, Italy
| | - Giancarlo Ruocco
- Department of Physics, Sapienza University, Piazzale Aldo Moro 5, Rome, 00185, Italy
| | - Giovanni Cuda
- Laboratory of Stem Cell Biology, Department of Experimental and Clinical Medicine, University Magna Graecia, Campus S. Venuta, Viale Europa, Catanzaro, 88100, Italy
| | - Enzo Di Fabrizio
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129, Torino, Italy
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6
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Limongi T, Susa F. An Opinion on How Nanobiotechnology is Assisting Humankind to Overcome the Coronavirus Disease 2019. Front Bioeng Biotechnol 2022; 10:916165. [PMID: 35769099 PMCID: PMC9234451 DOI: 10.3389/fbioe.2022.916165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/10/2022] [Indexed: 11/20/2022] Open
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7
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Winkler PM, García-Parajo MF. Correlative nanophotonic approaches to enlighten the nanoscale dynamics of living cell membranes. Biochem Soc Trans 2021; 49:2357-2369. [PMID: 34495333 PMCID: PMC8589428 DOI: 10.1042/bst20210457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/03/2021] [Accepted: 08/10/2021] [Indexed: 01/31/2023]
Abstract
Dynamic compartmentalization is a prevailing principle regulating the spatiotemporal organization of the living cell membrane from the nano- up to the mesoscale. This non-arbitrary organization is intricately linked to cell function. On living cell membranes, dynamic domains or 'membrane rafts' enriched with cholesterol, sphingolipids and other certain proteins exist at the nanoscale serving as signaling and sorting platforms. Moreover, it has been postulated that other local organizers of the cell membrane such as intrinsic protein interactions, the extracellular matrix and/or the actin cytoskeleton synergize with rafts to provide spatiotemporal hierarchy to the membrane. Elucidating the intricate coupling of multiple spatial and temporal scales requires the application of correlative techniques, with a particular need for simultaneous nanometer spatial precision and microsecond temporal resolution. Here, we review novel fluorescence-based techniques that readily allow to decode nanoscale membrane dynamics with unprecedented spatiotemporal resolution and single-molecule sensitivity. We particularly focus on correlative approaches from the field of nanophotonics. Notably, we introduce a versatile planar nanoantenna platform combined with fluorescence correlation spectroscopy to study spatiotemporal heterogeneities on living cell membranes at the nano- up to the mesoscale. Finally, we outline remaining future technological challenges and comment on potential directions to advance our understanding of cell membrane dynamics under the influence of the actin cytoskeleton and extracellular matrix in uttermost detail.
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Affiliation(s)
- Pamina M. Winkler
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Barcelona, Spain
| | - María F. García-Parajo
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Barcelona, Spain
- ICREA, Pg. Lluis Companys 23, 08010 Barcelona, Spain
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8
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Marini M, Legittimo F, Torre B, Allione M, Limongi T, Scaltrito L, Pirri CF, di Fabrizio E. DNA Studies: Latest Spectroscopic and Structural Approaches. MICROMACHINES 2021; 12:mi12091094. [PMID: 34577737 PMCID: PMC8465297 DOI: 10.3390/mi12091094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/28/2021] [Accepted: 09/04/2021] [Indexed: 11/16/2022]
Abstract
This review looks at the different approaches, techniques, and materials devoted to DNA studies. In the past few decades, DNA nanotechnology, micro-fabrication, imaging, and spectroscopies have been tailored and combined for a broad range of medical-oriented applications. The continuous advancements in miniaturization of the devices, as well as the continuous need to study biological material structures and interactions, down to single molecules, have increase the interdisciplinarity of emerging technologies. In the following paragraphs, we will focus on recent sensing approaches, with a particular effort attributed to cutting-edge techniques for structural and mechanical studies of nucleic acids.
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Affiliation(s)
- Monica Marini
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (F.L.); (B.T.); (T.L.); (L.S.); (C.F.P.); (E.d.F.)
- Correspondence: ; Tel.: +39-011-090-43-22
| | - Francesca Legittimo
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (F.L.); (B.T.); (T.L.); (L.S.); (C.F.P.); (E.d.F.)
| | - Bruno Torre
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (F.L.); (B.T.); (T.L.); (L.S.); (C.F.P.); (E.d.F.)
| | - Marco Allione
- Istituto Italiano di Tecnologia (IIT), Via Livorno 60, 10144 Torino, Italy;
| | - Tania Limongi
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (F.L.); (B.T.); (T.L.); (L.S.); (C.F.P.); (E.d.F.)
| | - Luciano Scaltrito
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (F.L.); (B.T.); (T.L.); (L.S.); (C.F.P.); (E.d.F.)
| | - Candido Fabrizio Pirri
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (F.L.); (B.T.); (T.L.); (L.S.); (C.F.P.); (E.d.F.)
- Istituto Italiano di Tecnologia (IIT), Via Livorno 60, 10144 Torino, Italy;
| | - Enzo di Fabrizio
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (F.L.); (B.T.); (T.L.); (L.S.); (C.F.P.); (E.d.F.)
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9
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Zhang P, Moretti M, Allione M, Tian Y, Ordonez-Loza J, Altamura D, Giannini C, Torre B, Das G, Li E, Thoroddsen ST, Sarathy SM, Autiero I, Giugni A, Gentile F, Malara N, Marini M, Di Fabrizio E. A droplet reactor on a super-hydrophobic surface allows control and characterization of amyloid fibril growth. Commun Biol 2020; 3:457. [PMID: 32820203 PMCID: PMC7441408 DOI: 10.1038/s42003-020-01187-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 07/31/2020] [Indexed: 11/10/2022] Open
Abstract
Methods to produce protein amyloid fibrils, in vitro, and in situ structure characterization, are of primary importance in biology, medicine, and pharmacology. We first demonstrated the droplet on a super-hydrophobic substrate as the reactor to produce protein amyloid fibrils with real-time monitoring of the growth process by using combined light-sheet microscopy and thermal imaging. The molecular structures were characterized by Raman spectroscopy, X-ray diffraction and X-ray scattering. We demonstrated that the convective flow induced by the temperature gradient of the sample is the main driving force in the growth of well-ordered protein fibrils. Particular attention was devoted to PHF6 peptide and full-length Tau441 protein to form amyloid fibrils. By a combined experimental with the molecular dynamics simulations, the conformational polymorphism of these amyloid fibrils were characterized. The study provided a feasible procedure to optimize the amyloid fibrils formation and characterizations of other types of proteins in future studies. Zhang et al present an integrated real-time imaging and flow field control platform based on water droplet evaporation on super-hydrophobic substrate (SHS) to enable amyloid fibril aggregation. They apply this methodology to observe structural polymorphism in PHF6 peptide and full length Tau441.
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Affiliation(s)
- Peng Zhang
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Manola Moretti
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Marco Allione
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Yuansi Tian
- High-Speed Fluids Imaging Lab, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Javier Ordonez-Loza
- Clean Combustion Research Center, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Davide Altamura
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, 70126, Bari, Italy
| | - Cinzia Giannini
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, 70126, Bari, Italy
| | - Bruno Torre
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Gobind Das
- Department of Physics, Khalifa University, P.O. Box: 127788, Abu Dhabi, UAE
| | - Erqiang Li
- Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Sigurdur T Thoroddsen
- High-Speed Fluids Imaging Lab, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - S Mani Sarathy
- Clean Combustion Research Center, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Ida Autiero
- Molecular Horizon, Bettona, Italy.,National Research Council, Institute of Biostructures and Bioimaging, Naples, Italy
| | - Andrea Giugni
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Francesco Gentile
- Department of electrical Engineering and Information Technology, University Federico II, Naples, Italy
| | - Natalia Malara
- BIONEM lab, University Magna Graecia, Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Monica Marini
- Materials and Microsystems Laboratory, Department of Applied Science and Technology, Politecnico di Torino, 10129, Torino, Italy
| | - Enzo Di Fabrizio
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia. .,Materials and Microsystems Laboratory, Department of Applied Science and Technology, Politecnico di Torino, 10129, Torino, Italy.
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10
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Emerging Designs of Electronic Devices in Biomedicine. MICROMACHINES 2020; 11:mi11020123. [PMID: 31979030 PMCID: PMC7074089 DOI: 10.3390/mi11020123] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 01/16/2020] [Accepted: 01/20/2020] [Indexed: 12/15/2022]
Abstract
A long-standing goal of nanoelectronics is the development of integrated systems to be used in medicine as sensor, therapeutic, or theranostic devices. In this review, we examine the phenomena of transport and the interaction between electro-active charges and the material at the nanoscale. We then demonstrate how these mechanisms can be exploited to design and fabricate devices for applications in biomedicine and bioengineering. Specifically, we present and discuss electrochemical devices based on the interaction between ions and conductive polymers, such as organic electrochemical transistors (OFETs), electrolyte gated field-effect transistors (FETs), fin field-effect transistor (FinFETs), tunnelling field-effect transistors (TFETs), electrochemical lab-on-chips (LOCs). For these systems, we comment on their use in medicine.
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11
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Microbioreactors for Process Development and Cell-Based Screening Studies. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2020; 179:67-100. [PMID: 32712680 DOI: 10.1007/10_2020_130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Microbioreactors (MBRs) have emerged as potent cultivation devices enabling automated small-scale experiments in parallel while enhancing their cost efficiency. The widespread use of MBRs has contributed to recent advances in industrial and pharmaceutical biotechnology, and they have proved to be indispensable tools in the development of many modern bioprocesses. Being predominantly applied in early stage process development, they open up new fields of research and enhance the efficacy of biotechnological product development. Their reduced reaction volume is associated with numerous inherent advantages - particularly the possibility for enabling parallel screening operations that facilitate high-throughput cultivations with reduced sample consumption (or the use of rare and expensive educts). As a result, multiple variables can be examined in a shorter time and with a lower expense. This leads to a simultaneous acceleration of research and process development along with decreased costs.MBRs range from simple miniaturized cultivations vessels (i.e., in the milliliter scale with limited possibilities for process control) to highly complex and automated small-scale microreactors with integrated sensors that allow for comprehensive screenings in very short time or a precise reflection of large-scale cultivation conditions. Progressive developments and improvements in manufacturing and automation techniques are already helping researchers to make use of the advantages that MBRs offer. This overview of current MBR systems surveys the diverse application for microbial and mammalian cell cultivations that have been developed in recent years.
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Akkilic N, Geschwindner S, Höök F. Single-molecule biosensors: Recent advances and applications. Biosens Bioelectron 2019; 151:111944. [PMID: 31999573 DOI: 10.1016/j.bios.2019.111944] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/26/2019] [Accepted: 11/29/2019] [Indexed: 02/07/2023]
Abstract
Single-molecule biosensors serve the unmet need for real time detection of individual biological molecules in the molecular crowd with high specificity and accuracy, uncovering unique properties of individual molecules which are hidden when measured using ensemble averaging methods. Measuring a signal generated by an individual molecule or its interaction with biological partners is not only crucial for early diagnosis of various diseases such as cancer and to follow medical treatments but also offers a great potential for future point-of-care devices and personalized medicine. This review summarizes and discusses recent advances in nanosensors for both in vitro and in vivo detection of biological molecules offering single-molecule sensitivity. In the first part, we focus on label-free platforms, including electrochemical, plasmonic, SERS-based and spectroelectrochemical biosensors. We review fluorescent single-molecule biosensors in the second part, highlighting nanoparticle-amplified assays, digital platforms and the utilization of CRISPR technology. We finally discuss recent advances in the emerging nanosensor technology of important biological species as well as future perspectives of these sensors.
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Affiliation(s)
- Namik Akkilic
- Structure, Biophysics and Fragment-based Lead Generation, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden.
| | - Stefan Geschwindner
- Structure, Biophysics and Fragment-based Lead Generation, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Fredrik Höök
- Department of Applied Physics, Division of Biological Physics, Chalmers University of Technology, Gothenburg, Sweden.
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Onesto V, Gentile F, Russo M, Villani M, Candeloro P, Perozziello G, Malara N, Fabrizio ED, Coluccio ML. Kinetic Rate Constants of Gold Nanoparticle Deposition on Silicon. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:14258-14265. [PMID: 31596592 DOI: 10.1021/acs.langmuir.9b02074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We fabricated gold nanoparticles on nanoporous silicon microparticles using electroless deposition in a hydrofluoric acid solution containing gold chloride. The reaction was followed by UV spectrometer analysis of the absorbance of the solution (proportional to the nanoparticle concentration) for two temperatures (20 and 50 °C). The results indicate that the process is autocatalytic, described by a pseudo-first-order reaction, the apparent rate constant kobs of which was determined by utilizing UV spectrometer data. We found that the reaction rate constant at 20 °C is 7 × 10-3 s-1 and that at 50 °C is 2.9 × 10-2 s-1. Scanning electron microscope (SEM) analysis of samples and diffusion-limited aggregation (DLA) simulations were used to validate the results. This study aims to resolve the kinetics of the electroless deposition of gold on silicon at the nanoscale, in the present state of art missing a quantitative characterization, for certain conditions of growth and given values of temperature and concentration of the reagents. Results may have applications to the synthesis of gold nanoparticles and their use as nanosensors, drug delivery systems, or metal nanometamaterials with advanced optical properties.
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Affiliation(s)
- Valentina Onesto
- Department of Experimental and Clinical Medicine , University Magna Graecia , Catanzaro 88100 , Italy
| | - Francesco Gentile
- Department of Electrical Engineering and Information Technology , University Federico II , Naples 80125 , Italy
| | - Mario Russo
- Department of Experimental and Clinical Medicine , University Magna Graecia , Catanzaro 88100 , Italy
| | - Marco Villani
- IMEM-CNR , Parco Area delle Scienze , 37/A Parma 43123 , Italy
| | - Patrizio Candeloro
- Department of Experimental and Clinical Medicine , University Magna Graecia , Catanzaro 88100 , Italy
| | - Gerardo Perozziello
- Department of Experimental and Clinical Medicine , University Magna Graecia , Catanzaro 88100 , Italy
| | - Natalia Malara
- Department of Experimental and Clinical Medicine , University Magna Graecia , Catanzaro 88100 , Italy
| | - Enzo Di Fabrizio
- Physical Science & Engineering Division , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Saudi Arabia
| | - M Laura Coluccio
- Department of Experimental and Clinical Medicine , University Magna Graecia , Catanzaro 88100 , Italy
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14
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Russo V, Candeloro P, Malara N, Perozziello G, Iannone M, Scicchitano M, Mollace R, Musolino V, Gliozzi M, Carresi C, Morittu VM, Gratteri S, Palma E, Muscoli C, Di Fabrizio E, Mollace V. Key Role of Cytochrome C for Apoptosis Detection Using Raman Microimaging in an Animal Model of Brain Ischemia with Insulin Treatment. APPLIED SPECTROSCOPY 2019; 73:1208-1217. [PMID: 31219322 DOI: 10.1177/0003702819858671] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Brain ischemia represents a leading cause of death and disability in industrialized countries. To date, therapeutic intervention is largely unsatisfactory and novel strategies are required for getting better protection of neurons injured by cerebral blood flow restriction. Recent evidence suggests that brain insulin leads to protection of neuronal population undergoing apoptotic cell death via modulation of oxidative stress and mitochondrial cytochrome c (CytC), an effect to be better clarified. In this work, we investigate on the effect of insulin given intracerebroventricular (ICV) before inducing a transient global ischemia by bilateral occlusion of the common carotid arteries (BCCO) in Mongolian gerbils (MG). The transient (3 min) global ischemia in MG is observed to produce neurodegenerative effect mainly into CA3 hippocampal region, 72 h after cerebral blood restriction. Intracerebroventricular microinfusion of insulin significantly prevents the apoptosis of CA3 hippocampal neurons. Histological observation, after hematoxylin and eosin staining, puts in evidence the neuroprotective role of insulin, but Raman microimaging provides a clearer insight in the CytC mechanism underlying the apoptotic process. Above all, CytC has been revealed to be an outstanding, innate Raman marker for monitoring the cells status, thanks to its resonant scattering at 530 nm of incident wavelength and to its crucial role in the early stages of cells apoptosis. These data support the hypothesis of an insulin-dependent neuroprotection and antiapoptotic mechanism occurring in the brain of MG undergoing transient brain ischemia. The observed effects occurred without any peripheral change on serum glucose levels, suggesting an alternative mechanism of insulin-induced neuroprotection.
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Affiliation(s)
- Vanessa Russo
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
- Association: Exchanger-Share Your Science, Complesso "Nini Barbieri," Catanzaro, Italy
| | - Patrizio Candeloro
- BioNEM Laboratory, Department of Clinical and Experimental Medicine, University "Magna Graecia" of Catanzaro, Italy
| | - Natalia Malara
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
- BioNEM Laboratory, Department of Clinical and Experimental Medicine, University "Magna Graecia" of Catanzaro, Italy
| | - Gerardo Perozziello
- BioNEM Laboratory, Department of Clinical and Experimental Medicine, University "Magna Graecia" of Catanzaro, Italy
| | - Michelangelo Iannone
- CNR, Neuroscience Institute, Pharmacology Section, Complesso "Nini Barbieri," Catanzaro, Italy
| | - Miriam Scicchitano
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
| | - Rocco Mollace
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
| | - Vincenzo Musolino
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
- Nutramed S.C.A.R.L., Complesso "Nini Barbieri", Roccelletta di Borgia, Catanzaro, Italy 88100
| | - Micaela Gliozzi
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
- Nutramed S.C.A.R.L., Complesso "Nini Barbieri", Roccelletta di Borgia, Catanzaro, Italy 88100
| | - Cristina Carresi
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
- Nutramed S.C.A.R.L., Complesso "Nini Barbieri", Roccelletta di Borgia, Catanzaro, Italy 88100
| | - Valeria M Morittu
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
| | - Santo Gratteri
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
| | - Ernesto Palma
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
- Nutramed S.C.A.R.L., Complesso "Nini Barbieri", Roccelletta di Borgia, Catanzaro, Italy 88100
| | - Carolina Muscoli
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
- Nutramed S.C.A.R.L., Complesso "Nini Barbieri", Roccelletta di Borgia, Catanzaro, Italy 88100
- Centro del farmaco (IRCCS), Rome, Italy
| | - Enzo Di Fabrizio
- BioNEM Laboratory, Department of Clinical and Experimental Medicine, University "Magna Graecia" of Catanzaro, Italy
- KAUST (King Abdullah University of Science and Technology), PSE and BESE Divisions, Thuwal, Kingdom of Saudi Arabia
| | - Vincenzo Mollace
- IRC-FSH Interregional Center for Food Safety and Health, University "Magna Graecia" of Catanzaro, Italy
- Nutramed S.C.A.R.L., Complesso "Nini Barbieri", Roccelletta di Borgia, Catanzaro, Italy 88100
- Centro del farmaco (IRCCS), Rome, Italy
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15
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Kim M, Ko SM, Lee C, Son J, Kim J, Kim JM, Nam JM. Hierarchic Interfacial Nanocube Assembly for Sensitive, Selective, and Quantitative DNA Detection with Surface-Enhanced Raman Scattering. Anal Chem 2019; 91:10467-10476. [PMID: 31265240 DOI: 10.1021/acs.analchem.9b01272] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Surface-enhanced Raman scattering (SERS)-based sensing is promising in that it has potential to allow for highly sensitive, selective, and multiplexed detection and imaging. However, the controlled assembly and gap formation between plasmonic particles for generating strong SERS signals in a quantitative manner is highly challenging, especially on biodetection platforms, and particle-to-particle variation in the signal enhancement can vary by several orders of magnitude in a single batch, largely limiting the reliable use of SERS for practical sensing applications. Here, a hierarchic-nanocube-assembly based SERS (H-Cube-SERS) bioassay to controllably amplify the electromagnetic field between gold nanocubes (AuNCs) is developed. Based on this strategy, H-Cube-SERS assay allows for detecting target DNA with a wide dynamic range from 100 aM to 10 pM concentrations in a stable and reproducible manner. It is also found that the uniformly formed AuNCs with flat surfaces are much more suitable for highly sensitive, reliable, and quantitative biodetection assays due to faster DNA binding kinetics, sharper DNA melting transition, wider hot spot regions, and less dependence on light polarization direction than spherical Au nanoparticles with curved interfaces. This work paves the pathways to the quantitative and sensitive biodetection on a SERS platform and can be extended to other particle assembly systems.
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Affiliation(s)
- Minho Kim
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Sung Min Ko
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Chungyeon Lee
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Jiwoong Son
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Jiyeon Kim
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Jae-Myoung Kim
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Jwa-Min Nam
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
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16
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Miscuglio M, Borys NJ, Spirito D, Martín-García B, Zaccaria RP, Weber-Bargioni A, Schuck PJ, Krahne R. Planar Aperiodic Arrays as Metasurfaces for Optical Near-Field Patterning. ACS NANO 2019; 13:5646-5654. [PMID: 31021592 DOI: 10.1021/acsnano.9b00821] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Plasmonic metasurfaces have spawned the field of flat optics using nanostructured planar metallic or dielectric surfaces that can replace bulky optical elements and enhance the capabilities of traditional far-field optics. Furthermore, the potential of flat optics can go far beyond far-field modulation and can be exploited for functionality in the near-field itself. Here, we design metasurfaces based on aperiodic arrays of plasmonic Au nanostructures for tailoring the optical near-field in the visible and near-infrared spectral range. The basic element of the arrays is a rhomboid that is modulated in size, orientation, and position to achieve the desired functionality of the micron-size metasurface structure. Using two-photon-photoluminescence as a tool to probe the near-field profiles in the plane of the metasurfaces, we demonstrate the molding of light into different near-field intensity patterns and active pattern control via the far-field illumination. Finite element method simulations reveal that the near-field modulation occurs via a combination of the plasmonic resonances of the rhomboids and field enhancement in the nanoscale gaps in between the elements. This approach enables optical elements that can switch the near-field distribution across the metasurface via wavelength and polarization of the incident far-field light and provides pathways for light matter interaction in integrated devices.
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Affiliation(s)
- Mario Miscuglio
- Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
- Dipartimento di Chimica e Chimica Industriale , Università degli Studi di Genova , Via Dodecaneso, 31 , 16146 Genova , Italy
| | - Nicholas J Borys
- Molecular Foundry , Lawrence Berkeley National Lab , 1 Cyclotron Road , Berkeley , California 94720 , United States
| | - Davide Spirito
- Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | | | | | - Alexander Weber-Bargioni
- Molecular Foundry , Lawrence Berkeley National Lab , 1 Cyclotron Road , Berkeley , California 94720 , United States
| | - P James Schuck
- Molecular Foundry , Lawrence Berkeley National Lab , 1 Cyclotron Road , Berkeley , California 94720 , United States
| | - Roman Krahne
- Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
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17
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Valpapuram I, Candeloro P, Coluccio ML, Parrotta EI, Giugni A, Das G, Cuda G, Di Fabrizio E, Perozziello G. Waveguiding and SERS Simplified Raman Spectroscopy on Biological Samples. BIOSENSORS-BASEL 2019; 9:bios9010037. [PMID: 30832416 PMCID: PMC6468818 DOI: 10.3390/bios9010037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/19/2019] [Accepted: 02/21/2019] [Indexed: 12/11/2022]
Abstract
Biomarkers detection at an ultra-low concentration in biofluids (blood, serum, saliva, etc.) is a key point for the early diagnosis success and the development of personalized therapies. However, it remains a challenge due to limiting factors like (i) the complexity of analyzed media, and (ii) the aspecificity detection and the poor sensitivity of the conventional methods. In addition, several applications require the integration of the primary sensors with other devices (microfluidic devices, capillaries, flasks, vials, etc.) where transducing the signal might be difficult, reducing performances and applicability. In the present work, we demonstrate a new class of optical biosensor we have developed integrating an optical waveguide (OWG) with specific plasmonic surfaces. Exploiting the plasmonic resonance, the devices give consistent results in surface enhanced Raman spectroscopy (SERS) for continuous and label-free detection of biological compounds. The OWG allows driving optical signals in the proximity of SERS surfaces (detection area) overcoming spatial constraints, in order to reach places previously optically inaccessible. A rutile prism couples the remote laser source to the OWG, while a Raman spectrometer collects the SERS far field scattering. The present biosensors were implemented by a simple fabrication process, which includes photolithography and nanofabrication. By using such devices, it was possible to detect cell metabolites like Phenylalanine (Phe), Adenosine 5-triphosphate sodium hydrate (ATP), Sodium Lactate, Human Interleukin 6 (IL6), and relate them to possible metabolic pathway variation.
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Affiliation(s)
- Immanuel Valpapuram
- Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy.
| | - Patrizio Candeloro
- Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy.
| | - Maria Laura Coluccio
- Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy.
| | - Elvira Immacolata Parrotta
- Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy.
| | - Andrea Giugni
- Structural Molecular Imaging Light Enhanced Spectroscopies Laboratory, Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
| | - Gobind Das
- Structural Molecular Imaging Light Enhanced Spectroscopies Laboratory, Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
| | - Gianni Cuda
- Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy.
| | - Enzo Di Fabrizio
- Structural Molecular Imaging Light Enhanced Spectroscopies Laboratory, Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
| | - Gerardo Perozziello
- Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Catanzaro, Italy.
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Plasmonic Nanowires for Wide Wavelength Range Molecular Sensing. MATERIALS 2018; 11:ma11050827. [PMID: 29772804 PMCID: PMC5978204 DOI: 10.3390/ma11050827] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/06/2018] [Accepted: 05/14/2018] [Indexed: 11/17/2022]
Abstract
In this paper, we propose the use of a standing nanowires array, constituted by plasmonic active gold wires grown on iron disks, and partially immersed in a supporting alumina matrix, for surface-enhanced Raman spectroscopy applications. The galvanic process was used to fabricate nanowires in pores of anodized alumina template, making this device cost-effective. This fabrication method allows for the selection of size, diameter, and spatial arrangement of nanowires. The proposed device, thanks to a detailed design analysis, demonstrates a broadband plasmonic enhancement effect useful for many standard excitation wavelengths in the visible and NIR. The trigonal pores arrangement gives an efficiency weakly dependent on polarization. The devices, tested with 633 and 830 nm laser lines, show a significant Raman enhancement factor, up to around 6 × 104, with respect to the flat gold surface, used as a reference for the measurements of the investigated molecules.
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Heck C, Kanehira Y, Kneipp J, Bald I. Platzierung einzelner Proteine in den SERS-Hot-Spots selbstorganisierter Silbernanolinsen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801748] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Christian Heck
- Institut für Chemie - Physikalische Chemie; Universität Potsdam; Karl-Liebknecht-Str. 24-25 14476 Potsdam-Golm Deutschland
- BAM Bundesanstalt für Materialforschung und -prüfung; Richard-Willstätter-Str. 11 12489 Berlin Deutschland
- Institut für Chemie/SALSA; Humboldt Universität zu Berlin; Brook-Taylor-Str. 2 12489 Berlin Deutschland
| | - Yuya Kanehira
- Chitose Institute of Science and Technology; Bibi 758-65 Chitose Hokkaido Japan
| | - Janina Kneipp
- BAM Bundesanstalt für Materialforschung und -prüfung; Richard-Willstätter-Str. 11 12489 Berlin Deutschland
- Institut für Chemie/SALSA; Humboldt Universität zu Berlin; Brook-Taylor-Str. 2 12489 Berlin Deutschland
| | - Ilko Bald
- Institut für Chemie - Physikalische Chemie; Universität Potsdam; Karl-Liebknecht-Str. 24-25 14476 Potsdam-Golm Deutschland
- BAM Bundesanstalt für Materialforschung und -prüfung; Richard-Willstätter-Str. 11 12489 Berlin Deutschland
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20
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Heck C, Kanehira Y, Kneipp J, Bald I. Placement of Single Proteins within the SERS Hot Spots of Self-Assembled Silver Nanolenses. Angew Chem Int Ed Engl 2018; 57:7444-7447. [DOI: 10.1002/anie.201801748] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Indexed: 12/25/2022]
Affiliation(s)
- Christian Heck
- Department of Chemistry-Physical Chemistry; University of Potsdam; Karl-Liebknecht-Str. 24-25 14476 Potsdam-Golm Germany
- BAM Federal Institute for Materials Research and Testing; Richard-Willstaetter Str. 11 12489 Berlin Germany
- Department of Chemistry & SALSA; Humboldt Universität zu Berlin; Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Yuya Kanehira
- Chitose Institute of Science and Technology; Bibi 758-65 Chitose Hokkaido Japan
| | - Janina Kneipp
- BAM Federal Institute for Materials Research and Testing; Richard-Willstaetter Str. 11 12489 Berlin Germany
- Department of Chemistry & SALSA; Humboldt Universität zu Berlin; Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Ilko Bald
- Department of Chemistry-Physical Chemistry; University of Potsdam; Karl-Liebknecht-Str. 24-25 14476 Potsdam-Golm Germany
- BAM Federal Institute for Materials Research and Testing; Richard-Willstaetter Str. 11 12489 Berlin Germany
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21
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Nature Inspired Plasmonic Structures: Influence of Structural Characteristics on Sensing Capability. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8050668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Winkler PM, Regmi R, Flauraud V, Brugger J, Rigneault H, Wenger J, García-Parajo MF. Optical Antenna-Based Fluorescence Correlation Spectroscopy to Probe the Nanoscale Dynamics of Biological Membranes. J Phys Chem Lett 2018; 9:110-119. [PMID: 29240442 DOI: 10.1021/acs.jpclett.7b02818] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The plasma membrane of living cells is compartmentalized at multiple spatial scales ranging from the nano- to the mesoscale. This nonrandom organization is crucial for a large number of cellular functions. At the nanoscale, cell membranes organize into dynamic nanoassemblies enriched by cholesterol, sphingolipids, and certain types of proteins. Investigating these nanoassemblies known as lipid rafts is of paramount interest in fundamental cell biology. However, this goal requires simultaneous nanometer spatial precision and microsecond temporal resolution, which is beyond the reach of common microscopes. Optical antennas based on metallic nanostructures efficiently enhance and confine light into nanometer dimensions, breaching the diffraction limit of light. In this Perspective, we discuss recent progress combining optical antennas with fluorescence correlation spectroscopy (FCS) to monitor microsecond dynamics at nanoscale spatial dimensions. These new developments offer numerous opportunities to investigate lipid and protein dynamics in both mimetic and native biological membranes.
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Affiliation(s)
- Pamina M Winkler
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology , 08860 Barcelona, Spain
| | - Raju Regmi
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology , 08860 Barcelona, Spain
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel , Marseille, France
| | - Valentin Flauraud
- Microsystems Laboratory, Institute of Microengineering, Ecole Polytechnique Fédérale de Lausanne , 1015 Lausanne, Switzerland
| | - Jürgen Brugger
- Microsystems Laboratory, Institute of Microengineering, Ecole Polytechnique Fédérale de Lausanne , 1015 Lausanne, Switzerland
| | - Hervé Rigneault
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel , Marseille, France
| | - Jérôme Wenger
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel , Marseille, France
| | - María F García-Parajo
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology , 08860 Barcelona, Spain
- ICREA , Pg. Lluís Companys 23, 08010 Barcelona, Spain
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23
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Parrotta E, De Angelis MT, Scalise S, Candeloro P, Santamaria G, Paonessa M, Coluccio ML, Perozziello G, De Vitis S, Sgura A, Coluzzi E, Mollace V, Di Fabrizio EM, Cuda G. Two sides of the same coin? Unraveling subtle differences between human embryonic and induced pluripotent stem cells by Raman spectroscopy. Stem Cell Res Ther 2017; 8:271. [PMID: 29183402 PMCID: PMC5706396 DOI: 10.1186/s13287-017-0720-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 10/24/2017] [Accepted: 11/06/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Human pluripotent stem cells, including embryonic stem cells and induced pluripotent stem cells, hold enormous promise for many biomedical applications, such as regenerative medicine, drug testing, and disease modeling. Although induced pluripotent stem cells resemble embryonic stem cells both morphologically and functionally, the extent to which these cell lines are truly equivalent, from a molecular point of view, remains controversial. METHODS Principal component analysis and K-means cluster analysis of collected Raman spectroscopy data were used for a comparative study of the biochemical fingerprint of human induced pluripotent stem cells and human embryonic stem cells. The Raman spectra analysis results were further validated by conventional biological assays. RESULTS Raman spectra analysis revealed that the major difference between human embryonic stem cells and induced pluripotent stem cells is due to the nucleic acid content, as shown by the strong positive peaks at 785, 1098, 1334, 1371, 1484, and 1575 cm-1, which is enriched in human induced pluripotent stem cells. CONCLUSIONS Here, we report a nonbiological approach to discriminate human induced pluripotent stem cells from their native embryonic stem cell counterparts.
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Affiliation(s)
- Elvira Parrotta
- Research Center for Advanced Biochemistry and Molecular Biology, Stem Cell Laboratory, Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Loc., Germaneto, Catanzaro, Italy
| | - Maria Teresa De Angelis
- Research Center for Advanced Biochemistry and Molecular Biology, Stem Cell Laboratory, Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Loc., Germaneto, Catanzaro, Italy
| | - Stefania Scalise
- Research Center for Advanced Biochemistry and Molecular Biology, Stem Cell Laboratory, Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Loc., Germaneto, Catanzaro, Italy
| | - Patrizio Candeloro
- BioNEM Lab., Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Loc., Germaneto, Catanzaro, Italy.
| | - Gianluca Santamaria
- Research Center for Advanced Biochemistry and Molecular Biology, Stem Cell Laboratory, Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Loc., Germaneto, Catanzaro, Italy
| | - Mariagrazia Paonessa
- Research Center for Advanced Biochemistry and Molecular Biology, Stem Cell Laboratory, Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Loc., Germaneto, Catanzaro, Italy
| | - Maria Laura Coluccio
- BioNEM Lab., Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Loc., Germaneto, Catanzaro, Italy
| | - Gerardo Perozziello
- BioNEM Lab., Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Loc., Germaneto, Catanzaro, Italy
| | - Stefania De Vitis
- Research Center for Advanced Biochemistry and Molecular Biology, Stem Cell Laboratory, Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Loc., Germaneto, Catanzaro, Italy
| | - Antonella Sgura
- Department of Science, University of Rome "Roma tre", viale G. Marconi 446, 00146, Rome, Italy
| | - Elisa Coluzzi
- Department of Science, University of Rome "Roma tre", viale G. Marconi 446, 00146, Rome, Italy
| | - Vincenzo Mollace
- Department of Health Sciences, University "Magna Graecia" of Catanzaro, 88100 Loc., Germaneto, Catanzaro, Italy
| | - Enzo Mario Di Fabrizio
- SMILEs Lab., Physical Science and Engineering Division (PSE), KAUST, 23955-6900, Thuwal, Kingdom of Saudi Arabia
| | - Giovanni Cuda
- Research Center for Advanced Biochemistry and Molecular Biology, Stem Cell Laboratory, Department of Experimental and Clinical Medicine, University "Magna Graecia" of Catanzaro, 88100 Loc., Germaneto, Catanzaro, Italy.
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Bellido EP, Bernasconi GD, Rossouw D, Butet J, Martin OJF, Botton GA. Self-Similarity of Plasmon Edge Modes on Koch Fractal Antennas. ACS NANO 2017; 11:11240-11249. [PMID: 29083865 DOI: 10.1021/acsnano.7b05554] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We investigate the plasmonic behavior of Koch snowflake fractal geometries and their possible application as broadband optical antennas. Lithographically defined planar silver Koch fractal antennas were fabricated and characterized with high spatial and spectral resolution using electron energy loss spectroscopy. The experimental data are supported by numerical calculations carried out with a surface integral equation method. Multiple surface plasmon edge modes supported by the fractal structures have been imaged and analyzed. Furthermore, by isolating and reproducing self-similar features in long silver strip antennas, the edge modes present in the Koch snowflake fractals are identified. We demonstrate that the fractal response can be obtained by the sum of basic self-similar segments called characteristic edge units. Interestingly, the plasmon edge modes follow a fractal-scaling rule that depends on these self-similar segments formed in the structure after a fractal iteration. As the size of a fractal structure is reduced, coupling of the modes in the characteristic edge units becomes relevant, and the symmetry of the fractal affects the formation of hybrid modes. This analysis can be utilized not only to understand the edge modes in other planar structures but also in the design and fabrication of fractal structures for nanophotonic applications.
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Affiliation(s)
- Edson P Bellido
- Department of Materials Science and Engineering, McMaster University , 1280 Main Street W., Hamilton, Ontario L8S 4L7, Canada
| | - Gabriel D Bernasconi
- Nanophotonics and Metrology Laboratory, École Polytechnique Fédéralede Lausanne , 1015 Lausanne, Switzerland
| | - David Rossouw
- Department of Materials Science and Engineering, McMaster University , 1280 Main Street W., Hamilton, Ontario L8S 4L7, Canada
| | - Jérémy Butet
- Nanophotonics and Metrology Laboratory, École Polytechnique Fédéralede Lausanne , 1015 Lausanne, Switzerland
| | - Olivier J F Martin
- Nanophotonics and Metrology Laboratory, École Polytechnique Fédéralede Lausanne , 1015 Lausanne, Switzerland
| | - Gianluigi A Botton
- Department of Materials Science and Engineering, McMaster University , 1280 Main Street W., Hamilton, Ontario L8S 4L7, Canada
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Alrasheed S, Di Fabrizio E. Effect of Surface Plasmon Coupling to Optical Cavity Modes on the Field Enhancement and Spectral Response of Dimer-Based sensors. Sci Rep 2017; 7:10524. [PMID: 28874769 PMCID: PMC5585175 DOI: 10.1038/s41598-017-11140-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 08/18/2017] [Indexed: 11/08/2022] Open
Abstract
We present a theoretical approach to narrow the plasmon linewidth and enhance the near-field intensity at a plasmonic dimer gap (hot spot) through coupling the electric localized surface plasmon (LSP) resonance of a silver hemispherical dimer with the resonant modes of a Fabry-Perot (FP) cavity. The strong coupling is demonstrated by the large anticrossing in the reflection spectra and a Rabi splitting of 76 meV. Up to 2-fold enhancement increase can be achieved compared to that without using the cavity. Such high field enhancement has potential applications in optics, including sensors and high resolution imaging devices. In addition, the resonance splitting allows for greater flexibility in using the same array at different wavelengths. We then further propose a practical design to realize such a device and include dimers of different shapes and materials.
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Affiliation(s)
- Salma Alrasheed
- King Abdullah University of Science and Technology, PSE and BESE Divisions, Thuwal, 23955-6900, Saudi Arabia.
| | - Enzo Di Fabrizio
- King Abdullah University of Science and Technology, PSE and BESE Divisions, Thuwal, 23955-6900, Saudi Arabia
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26
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Li S, Zhang H, Xu L, Chen M. Laser-induced construction of multi-branched CuS nanodendrites with excellent surface-enhanced Raman scattering spectroscopy in repeated applications. OPTICS EXPRESS 2017; 25:16204-16213. [PMID: 28789128 DOI: 10.1364/oe.25.016204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 06/27/2017] [Indexed: 06/07/2023]
Abstract
We report on the successful fabrication of multi-branched CuS nanodendrites with average branch length of about 20 nm by laser ablation of bulk Cu target in thioacetamide (TAA) solution. During the nucleation of Cu and S species, the accurate anisotropic growth should be attributed to an ultra-rapid acid etching process by laser-induced TAA hydrolyzing reaction. Interestingly, the semiconductor CuS nanodendrites provide pronounced surface enhanced Raman scattering (SERS) properties with noble-metal comparable activity and a detection limit as low as ~10-10 M, approaching the requirement (~nM) for single molecule detection. More importantly, after SERS analysis, the crystal violet (CV) probe molecules can be effectively removed from the substrate by 1064nm laser irradiation-induced moderate thermal treatment. Therefore, the unique and distinctive advantage is that the as-prepared CuS nanodendrites exhibit excellent reusability for 60 cycles of repeated SERS analyses. The low-cost CuS semiconductor nanodendrites with enhanced SERS properties should be established as a prominent SERS-based ultrasensitive probe in the repeated applications.
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Tian Y, García de Arquer FP, Dinh CT, Favraud G, Bonifazi M, Li J, Liu M, Zhang X, Zheng X, Kibria MG, Hoogland S, Sinton D, Sargent EH, Fratalocchi A. Enhanced Solar-to-Hydrogen Generation with Broadband Epsilon-Near-Zero Nanostructured Photocatalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1701165. [PMID: 28481018 DOI: 10.1002/adma.201701165] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 03/26/2017] [Indexed: 06/07/2023]
Abstract
The direct conversion of solar energy into fuels or feedstock is an attractive approach to address increasing demand of renewable energy sources. Photocatalytic systems relying on the direct photoexcitation of metals have been explored to this end, a strategy that exploits the decay of plasmonic resonances into hot carriers. An efficient hot carrier generation and collection requires, ideally, their generation to be enclosed within few tens of nanometers at the metal interface, but it is challenging to achieve this across the broadband solar spectrum. Here the authors demonstrate a new photocatalyst for hydrogen evolution based on metal epsilon-near-zero metamaterials. The authors have designed these to achieve broadband strong light confinement at the metal interface across the entire solar spectrum. Using electron energy loss spectroscopy, the authors prove that hot carriers are generated in a broadband fashion within 10 nm in this system. The resulting photocatalyst achieves a hydrogen production rate of 9.5 µmol h-1 cm-2 that exceeds, by a factor of 3.2, that of the best previously reported plasmonic-based photocatalysts for the dissociation of H2 with 50 h stable operation.
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Affiliation(s)
- Yi Tian
- PRIMALIGHT, Faculty of Electrical Engineering, Applied Mathematics and Computational Science, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | | | - Cao-Thang Dinh
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Gael Favraud
- PRIMALIGHT, Faculty of Electrical Engineering, Applied Mathematics and Computational Science, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Marcella Bonifazi
- PRIMALIGHT, Faculty of Electrical Engineering, Applied Mathematics and Computational Science, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Jun Li
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 239955, Saudi Arabia
| | - Min Liu
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Xixiang Zhang
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 239955, Saudi Arabia
| | - Xueli Zheng
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Md Golam Kibria
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario, M5S 1A4, Canada
| | - David Sinton
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 Kings College Road, Toronto, Ontario, M5S 3G8, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Andrea Fratalocchi
- PRIMALIGHT, Faculty of Electrical Engineering, Applied Mathematics and Computational Science, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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28
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Garcia-Cordero JL, Fan ZH. Sessile droplets for chemical and biological assays. LAB ON A CHIP 2017; 17:2150-2166. [PMID: 28561839 DOI: 10.1039/c7lc00366h] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Sessile droplets are non-movable droplets spanning volumes in the nL-to-μL range. The sessile-droplet-based platform provides a paradigm shift from the conventional, flow-based lab-on-a-chip philosophy, yet offering similar benefits: low reagent/sample consumption, high throughput, automation, and most importantly flexibility and versatility. Moreover, the platform relies less heavily on sophisticated fabrication techniques, often sufficient with a hydrophobic substrate, and no pump is required for operation. In addition, exploiting the physical phenomena that naturally arise when a droplet evaporates, such as the coffee-ring effect or Marangoni flow, can lead to fascinating applications. In this review, we introduce the physics of droplets, and then focus on the different types of chemical and biological assays that have been implemented in sessile droplets, including analyte concentration, particle separation and sorting, cell-based assays, and nucleic acid amplification. Finally, we provide our perspectives on this unique micro-scale platform.
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Affiliation(s)
- Jose L Garcia-Cordero
- Unidad Monterrey, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Via del Conocimiento 201, Parque PIIT, Apodaca, NL, CP. 66628 Mexico.
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Galinski H, Favraud G, Dong H, Gongora JST, Favaro G, Döbeli M, Spolenak R, Fratalocchi A, Capasso F. Scalable, ultra-resistant structural colors based on network metamaterials. LIGHT, SCIENCE & APPLICATIONS 2017; 6:e16233. [PMID: 30167248 PMCID: PMC6062193 DOI: 10.1038/lsa.2016.233] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 09/20/2016] [Accepted: 09/25/2016] [Indexed: 05/03/2023]
Abstract
Structural colors have drawn wide attention for their potential as a future printing technology for various applications, ranging from biomimetic tissues to adaptive camouflage materials. However, an efficient approach to realize robust colors with a scalable fabrication technique is still lacking, hampering the realization of practical applications with this platform. Here, we develop a new approach based on large-scale network metamaterials that combine dealloyed subwavelength structures at the nanoscale with lossless, ultra-thin dielectric coatings. By using theory and experiments, we show how subwavelength dielectric coatings control a mechanism of resonant light coupling with epsilon-near-zero regions generated in the metallic network, generating the formation of saturated structural colors that cover a wide portion of the spectrum. Ellipsometry measurements support the efficient observation of these colors, even at angles of 70°. The network-like architecture of these nanomaterials allows for high mechanical resistance, which is quantified in a series of nano-scratch tests. With such remarkable properties, these metastructures represent a robust design technology for real-world, large-scale commercial applications.
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Affiliation(s)
- Henning Galinski
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge 02138, USA
- Laboratory for Nanometallurgy, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zurich 8093, Switzerland
| | - Gael Favraud
- PRIMALIGHT, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Hao Dong
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge 02138, USA
- Laboratory for Nanometallurgy, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zurich 8093, Switzerland
| | - Juan S Totero Gongora
- PRIMALIGHT, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | | | - Max Döbeli
- Ion Beam Physics, ETH Zurich, Otto-Stern-Weg 5, Zurich 8093, Switzerland
| | - Ralph Spolenak
- Laboratory for Nanometallurgy, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zurich 8093, Switzerland
| | - Andrea Fratalocchi
- PRIMALIGHT, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Federico Capasso
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge 02138, USA
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Nanoplasmonic and Microfluidic Devices for Biological Sensing. NATO SCIENCE FOR PEACE AND SECURITY SERIES B: PHYSICS AND BIOPHYSICS 2017. [DOI: 10.1007/978-94-024-0850-8_12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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32
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The Technical and Biological Reproducibility of Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry (MALDI-TOF MS) Based Typing: Employment of Bioinformatics in a Multicenter Study. PLoS One 2016; 11:e0164260. [PMID: 27798637 PMCID: PMC5087883 DOI: 10.1371/journal.pone.0164260] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 09/22/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The technical, biological, and inter-center reproducibility of matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI TOF MS) typing data has not yet been explored. The aim of this study is to compare typing data from multiple centers employing bioinformatics using bacterial strains from two past outbreaks and non-related strains. MATERIAL/METHODS Participants received twelve extended spectrum betalactamase-producing E. coli isolates and followed the same standard operating procedure (SOP) including a full-protein extraction protocol. All laboratories provided visually read spectra via flexAnalysis (Bruker, Germany). Raw data from each laboratory allowed calculating the technical and biological reproducibility between centers using BioNumerics (Applied Maths NV, Belgium). RESULTS Technical and biological reproducibility ranged between 96.8-99.4% and 47.6-94.4%, respectively. The inter-center reproducibility showed a comparable clustering among identical isolates. Principal component analysis indicated a higher tendency to cluster within the same center. Therefore, we used a discriminant analysis, which completely separated the clusters. Next, we defined a reference center and performed a statistical analysis to identify specific peaks to identify the outbreak clusters. Finally, we used a classifier algorithm and a linear support vector machine on the determined peaks as classifier. A validation showed that within the set of the reference center, the identification of the cluster was 100% correct with a large contrast between the score with the correct cluster and the next best scoring cluster. CONCLUSIONS Based on the sufficient technical and biological reproducibility of MALDI-TOF MS based spectra, detection of specific clusters is possible from spectra obtained from different centers. However, we believe that a shared SOP and a bioinformatics approach are required to make the analysis robust and reliable.
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Modulation of Circulating MicroRNAs Levels during the Switch from Clopidogrel to Ticagrelor. BIOMED RESEARCH INTERNATIONAL 2016; 2016:3968206. [PMID: 27366745 PMCID: PMC4913053 DOI: 10.1155/2016/3968206] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 04/20/2016] [Accepted: 05/15/2016] [Indexed: 12/12/2022]
Abstract
Background. Circulating microRNAs are appealing biomarkers to monitor several processes underlying cardiovascular diseases. Platelets are a major source for circulating microRNAs. Interestingly, the levels of specific microRNAs were reported to correlate with the level of platelet activation. The aim of the present study was to test whether the treatment with the novel antiplatelet agent, ticagrelor, is associated with modulation in the levels of key platelet-derived microRNAs. Methods and Results. Patients were randomly selected from those participating in the SHIFT-OVER study, in which we had previously evaluated the effect of the therapeutic switch from clopidogrel to ticagrelor on platelet aggregation. Circulating levels of selected microRNAs were measured before and after the therapeutic switch from a dual antiplatelet therapy including acetylsalicylic acid (ASA) and clopidogrel to the more potent ticagrelor. Interestingly, the circulating levels of miR-126 (p = 0.030), miR-223 (p = 0.044), and miR-150 (p = 0.048) were significantly reduced, while the levels of miR-96 were increased (p = 0.038). No substantial differences were observed for the remaining microRNAs. Conclusions. Switching from a dual antiplatelet treatment with clopidogrel to ticagrelor is associated with significant modulation in the circulating levels of specific microRNAs. If confirmed in larger, independent cohorts, our results pave the way for the use of circulating microRNAs as biomarkers of platelets activity in response to specific pharmacological treatments.
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Perozziello G, Candeloro P, De Grazia A, Esposito F, Allione M, Coluccio ML, Tallerico R, Valpapuram I, Tirinato L, Das G, Giugni A, Torre B, Veltri P, Kruhne U, Della Valle G, Di Fabrizio E. Microfluidic device for continuous single cells analysis via Raman spectroscopy enhanced by integrated plasmonic nanodimers. OPTICS EXPRESS 2016; 24:A180-A190. [PMID: 26832572 DOI: 10.1364/oe.24.00a180] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this work a Raman flow cytometer is presented. It consists of a microfluidic device that takes advantages of the basic principles of Raman spectroscopy and flow cytometry. The microfluidic device integrates calibrated microfluidic channels- where the cells can flow one-by-one -, allowing single cell Raman analysis. The microfluidic channel integrates plasmonic nanodimers in a fluidic trapping region. In this way it is possible to perform Enhanced Raman Spectroscopy on single cell. These allow a label-free analysis, providing information about the biochemical content of membrane and cytoplasm of the each cell. Experiments are performed on red blood cells (RBCs), peripheral blood lymphocytes (PBLs) and myelogenous leukemia tumor cells (K562).
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Das G, Alrasheed S, Coluccio ML, Gentile F, Nicastri A, Candeloro P, Cuda G, Perozziello G, Di Fabrizio E. Few molecule SERS detection using nanolens based plasmonic nanostructure: application to point mutation detection. RSC Adv 2016. [DOI: 10.1039/c6ra23301e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Self-similar chain based nanolens plasmonic devices were fabricated for detecting single point mutations.
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Affiliation(s)
- Gobind Das
- Physical Sciences and Engineering (PSE)
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
| | - Salma Alrasheed
- Physical Sciences and Engineering (PSE)
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
| | - Maria Laura Coluccio
- Bio-Nanotechnology and Engineering for Medicine (BIONEM)
- Department of Experimental and Clinical Medicine
- University of Magna Graecia Viale Europa
- Catanzaro 88100
- Italy
| | - Francesco Gentile
- Bio-Nanotechnology and Engineering for Medicine (BIONEM)
- Department of Experimental and Clinical Medicine
- University of Magna Graecia Viale Europa
- Catanzaro 88100
- Italy
| | - Annalisa Nicastri
- Advanced Research Center on Biochemistry and Molecular Biology
- Department of Experimental and Clinical Medicine
- University of Magna Graecia Viale Europa
- Catanzaro 88100
- Italy
| | - Patrizio Candeloro
- Bio-Nanotechnology and Engineering for Medicine (BIONEM)
- Department of Experimental and Clinical Medicine
- University of Magna Graecia Viale Europa
- Catanzaro 88100
- Italy
| | - Giovanni Cuda
- Advanced Research Center on Biochemistry and Molecular Biology
- Department of Experimental and Clinical Medicine
- University of Magna Graecia Viale Europa
- Catanzaro 88100
- Italy
| | - Gerardo Perozziello
- Bio-Nanotechnology and Engineering for Medicine (BIONEM)
- Department of Experimental and Clinical Medicine
- University of Magna Graecia Viale Europa
- Catanzaro 88100
- Italy
| | - Enzo Di Fabrizio
- Physical Sciences and Engineering (PSE)
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
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