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Orange Kedem R, Opatovski N, Xiao D, Ferdman B, Alalouf O, Kumar Pal S, Wang Z, von der Emde H, Weber M, Sahl SJ, Ponjavic A, Arie A, Hell SW, Shechtman Y. Near index matching enables solid diffractive optical element fabrication via additive manufacturing. LIGHT, SCIENCE & APPLICATIONS 2023; 12:222. [PMID: 37696792 PMCID: PMC10495398 DOI: 10.1038/s41377-023-01277-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/10/2023] [Accepted: 08/28/2023] [Indexed: 09/13/2023]
Abstract
Diffractive optical elements (DOEs) have a wide range of applications in optics and photonics, thanks to their capability to perform complex wavefront shaping in a compact form. However, widespread applicability of DOEs is still limited, because existing fabrication methods are cumbersome and expensive. Here, we present a simple and cost-effective fabrication approach for solid, high-performance DOEs. The method is based on conjugating two nearly refractive index-matched solidifiable transparent materials. The index matching allows for extreme scaling up of the elements in the axial dimension, which enables simple fabrication of a template using commercially available 3D printing at tens-of-micrometer resolution. We demonstrated the approach by fabricating and using DOEs serving as microlens arrays, vortex plates, including for highly sensitive applications such as vector beam generation and super-resolution microscopy using MINSTED, and phase-masks for three-dimensional single-molecule localization microscopy. Beyond the advantage of making DOEs widely accessible by drastically simplifying their production, the method also overcomes difficulties faced by existing methods in fabricating highly complex elements, such as high-order vortex plates, and spectrum-encoding phase masks for microscopy.
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Affiliation(s)
- Reut Orange Kedem
- Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel
- Lorry Lokey Interdisciplinary Center for Life Sciences and Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Nadav Opatovski
- Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel
- Lorry Lokey Interdisciplinary Center for Life Sciences and Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Dafei Xiao
- Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel
- Lorry Lokey Interdisciplinary Center for Life Sciences and Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Boris Ferdman
- Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel
- Lorry Lokey Interdisciplinary Center for Life Sciences and Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Onit Alalouf
- Lorry Lokey Interdisciplinary Center for Life Sciences and Engineering, Technion-Israel Institute of Technology, Haifa, Israel
- Department of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Sushanta Kumar Pal
- School of Electrical Engineering Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Ziyun Wang
- School of Physics and Astronomy, University of Leeds, Leeds, UK
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Henrik von der Emde
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Michael Weber
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Steffen J Sahl
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Aleks Ponjavic
- School of Physics and Astronomy, University of Leeds, Leeds, UK
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Ady Arie
- School of Electrical Engineering Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Stefan W Hell
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, Heidelberg, Germany
| | - Yoav Shechtman
- Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, Israel.
- Lorry Lokey Interdisciplinary Center for Life Sciences and Engineering, Technion-Israel Institute of Technology, Haifa, Israel.
- Department of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, Israel.
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de Moliner F, Konieczna Z, Mendive‐Tapia L, Saleeb RS, Morris K, Gonzalez‐Vera JA, Kaizuka T, Grant SGN, Horrocks MH, Vendrell M. Small Fluorogenic Amino Acids for Peptide-Guided Background-Free Imaging. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 135:e202216231. [PMID: 38515539 PMCID: PMC10952862 DOI: 10.1002/ange.202216231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Indexed: 11/23/2022]
Abstract
The multiple applications of super-resolution microscopy have prompted the need for minimally invasive labeling strategies for peptide-guided fluorescence imaging. Many fluorescent reporters display limitations (e.g., large and charged scaffolds, non-specific binding) as building blocks for the construction of fluorogenic peptides. Herein we have built a library of benzodiazole amino acids and systematically examined them as reporters for background-free fluorescence microscopy. We have identified amine-derivatized benzoselenadiazoles as scalable and photostable amino acids for the straightforward solid-phase synthesis of fluorescent peptides. Benzodiazole amino acids retain the binding capabilities of bioactive peptides and display excellent signal-to-background ratios. Furthermore, we have demonstrated their application in peptide-PAINT imaging of postsynaptic density protein-95 nanoclusters in the synaptosomes from mouse brain tissues.
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Affiliation(s)
| | | | | | | | - Katie Morris
- EaStCHEM School of ChemistryThe University of EdinburghUK
| | | | - Takeshi Kaizuka
- Centre for Clinical Brain SciencesThe University of EdinburghUK
| | | | | | - Marc Vendrell
- Centre for Inflammation ResearchThe University of EdinburghUK
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