Dynamic Complex Emulsions as Amplifiers for On-Chip Photonic Cavity-Enhanced Resonators
Copyright © 2020 American Chemical Society. Despite the recent emergence of microcavity resonators as label-free biological and chemical sensors, practical applications still require simple and robust methods to impart chemical selectivity and reduce the cost of fabrication. We introduce the use of...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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American Chemical Society (ACS)
2021
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| Online Access: | https://hdl.handle.net/1721.1/132547 |
| _version_ | 1826203517319118848 |
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| author | Savagatrup, Suchol Ma, Danhao Zhong, Huikai Harvey, Kent S Kimerling, Lionel C Agarwal, Anuradha M Swager, Timothy M |
| author_facet | Savagatrup, Suchol Ma, Danhao Zhong, Huikai Harvey, Kent S Kimerling, Lionel C Agarwal, Anuradha M Swager, Timothy M |
| author_sort | Savagatrup, Suchol |
| collection | MIT |
| description | Copyright © 2020 American Chemical Society. Despite the recent emergence of microcavity resonators as label-free biological and chemical sensors, practical applications still require simple and robust methods to impart chemical selectivity and reduce the cost of fabrication. We introduce the use of hydrocarbon-in-fluorocarbon-in-water (HC/FC/W) double emulsions as a liquid top cladding that expands the versatility of optical resonators as chemical sensors. The all-liquid complex emulsions are tunable droplets that undergo dynamic and reversible morphological transformations in response to a change in the chemical environment (e.g., exposure to targeted analytes). This chemical-morphological coupling drastically modifies the effective refractive index, allowing the complex emulsions to act as a chemical transducer and signal amplifier. We detect this large change in the refractive index by tracking the shift of the enveloped resonant spectrum of a silicon nitride (Si3N4) racetrack resonator-based sensor, which correlates well with a change in the morphology of the complex droplets. This combination of soft materials (dynamic complex emulsions) and hard materials (on-chip resonators) provides a unique platform for liquid-phase, real-time, and continuous detection of chemicals and biomolecules for miniaturized and remote, environmental, medical, and wearable sensing applications. |
| first_indexed | 2024-09-23T12:38:36Z |
| format | Article |
| id | mit-1721.1/132547 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:38:36Z |
| publishDate | 2021 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/1325472021-09-21T03:34:57Z Dynamic Complex Emulsions as Amplifiers for On-Chip Photonic Cavity-Enhanced Resonators Savagatrup, Suchol Ma, Danhao Zhong, Huikai Harvey, Kent S Kimerling, Lionel C Agarwal, Anuradha M Swager, Timothy M Copyright © 2020 American Chemical Society. Despite the recent emergence of microcavity resonators as label-free biological and chemical sensors, practical applications still require simple and robust methods to impart chemical selectivity and reduce the cost of fabrication. We introduce the use of hydrocarbon-in-fluorocarbon-in-water (HC/FC/W) double emulsions as a liquid top cladding that expands the versatility of optical resonators as chemical sensors. The all-liquid complex emulsions are tunable droplets that undergo dynamic and reversible morphological transformations in response to a change in the chemical environment (e.g., exposure to targeted analytes). This chemical-morphological coupling drastically modifies the effective refractive index, allowing the complex emulsions to act as a chemical transducer and signal amplifier. We detect this large change in the refractive index by tracking the shift of the enveloped resonant spectrum of a silicon nitride (Si3N4) racetrack resonator-based sensor, which correlates well with a change in the morphology of the complex droplets. This combination of soft materials (dynamic complex emulsions) and hard materials (on-chip resonators) provides a unique platform for liquid-phase, real-time, and continuous detection of chemicals and biomolecules for miniaturized and remote, environmental, medical, and wearable sensing applications. 2021-09-20T18:22:58Z 2021-09-20T18:22:58Z 2020-11-16T14:38:18Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/132547 en 10.1021/ACSSENSORS.0C00399 ACS Sensors Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf American Chemical Society (ACS) PMC |
| spellingShingle | Savagatrup, Suchol Ma, Danhao Zhong, Huikai Harvey, Kent S Kimerling, Lionel C Agarwal, Anuradha M Swager, Timothy M Dynamic Complex Emulsions as Amplifiers for On-Chip Photonic Cavity-Enhanced Resonators |
| title | Dynamic Complex Emulsions as Amplifiers for On-Chip Photonic Cavity-Enhanced Resonators |
| title_full | Dynamic Complex Emulsions as Amplifiers for On-Chip Photonic Cavity-Enhanced Resonators |
| title_fullStr | Dynamic Complex Emulsions as Amplifiers for On-Chip Photonic Cavity-Enhanced Resonators |
| title_full_unstemmed | Dynamic Complex Emulsions as Amplifiers for On-Chip Photonic Cavity-Enhanced Resonators |
| title_short | Dynamic Complex Emulsions as Amplifiers for On-Chip Photonic Cavity-Enhanced Resonators |
| title_sort | dynamic complex emulsions as amplifiers for on chip photonic cavity enhanced resonators |
| url | https://hdl.handle.net/1721.1/132547 |
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