1
|
Macis S, Paolozzi MC, D'Arco A, Piccirilli F, Stopponi V, Rossi M, Moia F, Toma A, Lupi S. Extraordinary optical transmittance generation on Si 3N 4 membranes. NANOSCALE 2023; 15:16002-16009. [PMID: 37779505 PMCID: PMC10568977 DOI: 10.1039/d3nr02834h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/21/2023] [Indexed: 10/03/2023]
Abstract
Metamaterials are attracting increasing attention due to their ability to support novel and engineerable electromagnetic functionalities. In this paper, we investigate one of these functionalities, i.e. the extraordinary optical transmittance (EOT) effect based on silicon nitride (Si3N4) membranes patterned with a periodic lattice of micrometric holes. Here, the coupling between the incoming electromagnetic wave and a Si3N4 optical phonon located around 900 cm-1 triggers an increase of the transmitted infrared intensity in an otherwise opaque spectral region. Different hole sizes are investigated suggesting that the mediating mechanism responsible for this phenomenon is the excitation of a phonon-polariton mode. The electric field distribution around the holes is further investigated by numerical simulations and nano-IR measurements based on a Scattering-Scanning Near Field Microscope (s-SNOM) technique, confirming the phonon-polariton origin of the EOT effect. Being membrane technologies at the core of a broad range of applications, the confinement of IR radiation at the membrane surface provides this technology platform with a novel light-matter interaction functionality.
Collapse
Affiliation(s)
- Salvatore Macis
- Department of Physics, Sapienza University, Piazzale Aldo Moro 5, 00185, Rome, Italy.
- INFN - Laboratori Nazionali di Frascati, via Enrico Fermi 54, 00044, Frascati, Rome, Italy
| | - Maria Chiara Paolozzi
- Department of Physics, Sapienza University, Piazzale Aldo Moro 5, 00185, Rome, Italy.
| | - Annalisa D'Arco
- Department of Physics, Sapienza University, Piazzale Aldo Moro 5, 00185, Rome, Italy.
| | - Federica Piccirilli
- Elettra - Sincrotrone Trieste S.C.p.A., S.S. 14 km-163, 5 in Area Science Park, I-34149 Basovizza, Trieste, Italy
| | - Veronica Stopponi
- IOM-CNR, Area Science Park, Strada Statale 14, km 163, 5, 34149 Basovizza, TS, Italy
| | - Marco Rossi
- SBAI, Department of Basic and Applied Sciences for Engineering, University of Rome "La Sapienza", Via Scarpa 16, 00161 Rome, Italy
| | - Fabio Moia
- Istituto Italiano di Tecnologia, via Morego 30, Genova 16163, Italy
| | - Andrea Toma
- Istituto Italiano di Tecnologia, via Morego 30, Genova 16163, Italy
| | - Stefano Lupi
- Department of Physics, Sapienza University, Piazzale Aldo Moro 5, 00185, Rome, Italy.
- IOM-CNR, Area Science Park, Strada Statale 14, km 163, 5, 34149 Basovizza, TS, Italy
| |
Collapse
|
2
|
Pitner R, Kim J, Davis-Bergthold J, Turner C, Vassal-Stermann E, Wang H, Adams J, Carter L, Ahlgren JA, Fender P, Lieber A, Carter D, Gray SA. Structure-based Design of JOC-x, a Conjugatable Tumor Tight Junction Opener to Enhance Cancer Therapy. Sci Rep 2019; 9:6169. [PMID: 30992466 PMCID: PMC6467980 DOI: 10.1038/s41598-019-42229-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 03/26/2019] [Indexed: 01/14/2023] Open
Abstract
Disorganized intercellular junctions are critical for maintaining the integrity of solid epithelial tumors and prevent the infiltration of oncological therapies into the bulk of the malignancy. We have developed small, recombinant proteins which bind a critical junction protein, desmoglein 2, triggering the transient and specific opening of tumor tight junctions allowing for infiltration of the tumor with immune cells, oncolytic viruses, drugs, and other therapeutics. Our new molecule, JOC-x, is a promising candidate for a new class of tumor-targeting agents that accumulate both around and within tumors and remodel the tumor microenvironment. Native cysteines were removed from the parental protein, JO-4, followed by addition of a single cysteine to allow for convenient attachment of various payloads that can be targeted directly to the tumor. Our tumor-targeting protein exhibits high avidity, minimal aggregation, and is easily purified at good yields from E. coli. For proof of concept, we demonstrate effective conjugation to biotin as a model for flexible co-targeting, addition of metal ion chelators as models for imaging and radiotherapy, and linkage of the TLR3 agonist poly(I:C) as a model immune-oncologic agent. This second-generation cancer co-therapeutic protein is optimized for activity and primed for cGMP manufacture in preparation for upcoming clinical studies.
Collapse
Affiliation(s)
- Ragan Pitner
- grid.423437.5PAI Life Sciences, Inc., Seattle, WA USA ,0000000122986657grid.34477.33University of Washington, Dept. of Immunology, Seattle, WA USA
| | - Jiho Kim
- grid.423437.5PAI Life Sciences, Inc., Seattle, WA USA ,0000000122986657grid.34477.33University of Washington, Program in Pathobiology, Dept. of Global Health, Seattle, WA USA
| | | | - Cheri Turner
- grid.423437.5PAI Life Sciences, Inc., Seattle, WA USA
| | - Emilie Vassal-Stermann
- 0000 0004 0641 5776grid.418192.7Institut de Biologie Structurale, UMR5075, CNRS/CEA/UGA, Grenoble, France
| | - Hongjie Wang
- 0000000122986657grid.34477.33University of Washington, Division of Medical Genetics, Seattle, WA USA
| | - Jaclyn Adams
- 0000000122986657grid.34477.33University of Washington, Division of Medical Genetics, Seattle, WA USA
| | - Lauren Carter
- 0000000122986657grid.34477.33Institute for Protein Design, Department of Biochemistry, University of Washington, Seattle, WA USA
| | | | - Pascal Fender
- 0000 0004 0641 5776grid.418192.7Institut de Biologie Structurale, UMR5075, CNRS/CEA/UGA, Grenoble, France
| | - André Lieber
- 0000000122986657grid.34477.33University of Washington, Division of Medical Genetics, Seattle, WA USA ,grid.428229.7Compliment Corp., Seattle, WA USA
| | - Darrick Carter
- grid.423437.5PAI Life Sciences, Inc., Seattle, WA USA ,0000000122986657grid.34477.33University of Washington, Program in Pathobiology, Dept. of Global Health, Seattle, WA USA ,0000000122986657grid.34477.33University of Washington, Division of Medical Genetics, Seattle, WA USA ,grid.428229.7Compliment Corp., Seattle, WA USA
| | - Sean A. Gray
- grid.423437.5PAI Life Sciences, Inc., Seattle, WA USA
| |
Collapse
|
3
|
Hermelink A, Naumann D, Piesker J, Lasch P, Laue M, Hermann P. Towards a correlative approach for characterising single virus particles by transmission electron microscopy and nanoscale Raman spectroscopy. Analyst 2017; 142:1342-1349. [DOI: 10.1039/c6an02151d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The morphology and structure of biological nanoparticles, such as viruses, can be efficiently analysed by transmission electron microscopy (TEM).
Collapse
Affiliation(s)
- A. Hermelink
- Centre for Biological Threats and Special Pathogens – Proteomics and Spectroscopy (ZBS6)
- Robert Koch-Institute
- 13353 Berlin
- Germany
| | - D. Naumann
- Centre for Biological Threats and Special Pathogens – Proteomics and Spectroscopy (ZBS6)
- Robert Koch-Institute
- 13353 Berlin
- Germany
| | - J. Piesker
- Centre for Biological Threats and Special Pathogens – Advanced Light and Electron Microscopy (ZBS4)
- Robert Koch-Institute
- 13353 Berlin
- Germany
| | - P. Lasch
- Centre for Biological Threats and Special Pathogens – Proteomics and Spectroscopy (ZBS6)
- Robert Koch-Institute
- 13353 Berlin
- Germany
| | - M. Laue
- Centre for Biological Threats and Special Pathogens – Advanced Light and Electron Microscopy (ZBS4)
- Robert Koch-Institute
- 13353 Berlin
- Germany
| | - P. Hermann
- Centre for Biological Threats and Special Pathogens – Proteomics and Spectroscopy (ZBS6)
- Robert Koch-Institute
- 13353 Berlin
- Germany
- Physikalisch-Technische Bundesanstalt (PTB)
| |
Collapse
|
4
|
Langelüddecke L, Singh P, Deckert V. Exploring the Nanoscale: Fifteen Years of Tip-Enhanced Raman Spectroscopy. APPLIED SPECTROSCOPY 2015; 69:1357-71. [PMID: 26554759 DOI: 10.1366/15-08014] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Spectroscopic methods with high spatial resolution are essential to understand the physical and chemical properties of nanoscale materials including biological and chemical materials. Tip-enhanced Raman spectroscopy (TERS) is a combination of surface-enhanced Raman spectroscopy (SERS) and scanning probe microscopy (SPM), which can provide high-resolution topographic and spectral information simultaneously below the diffraction limit of light. Even examples of sub-nanometer resolution have been demonstrated. This review intends to give an introduction to TERS, focusing on its basic principle and the experimental setup, the strengths followed by recent applications, developments, and perspectives in this field.
Collapse
Affiliation(s)
- Lucas Langelüddecke
- Institute of Physical Chemistry and Abbe Center of Photonics, University of Jena, Helmholtzweg 4, D-07743 Jena, Germany
| | | | | |
Collapse
|