Fiber optic interferometer sensor for responsive hydrogel based heavy metal cation detection
This project objective aimed to fuse a Mach-Zehnder type interferometer and using the hydrogel volume phase transition theory to measure the refractive index dependence due to the heavy metal concentration. The refractive index sensor was made by splicing a three centimeter photonic crys...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2014
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/60243 |
| _version_ | 1811686966103638016 |
|---|---|
| author | Koh, Tee Wee |
| author2 | Julian |
| author_facet | Julian Koh, Tee Wee |
| author_sort | Koh, Tee Wee |
| collection | NTU |
| description | This project objective aimed to fuse a Mach-Zehnder type interferometer and
using the hydrogel volume phase transition theory to measure the refractive index
dependence due to the heavy metal concentration. The refractive index sensor was
made by splicing a three centimeter photonic crystal fiber (PCF) and placing it in
between two single mode fibers. To allow the coupling of various modes, the air
holes of PCF must be fully collapsed at the spliced region. The hydrogel will be
coated onto the PCF interferometer via dipping into it. The copolymerizing of both
polyacrylic acid with polyvinyl alcohol and cross-linkers incorporated epoxy groups
as molecular recognition agents for 5-amino-8-hydroxyquinoline. The heavy metal
cation will induced hydrogel to swell and shrink according to the RI changes, and can
be transduced to an optical signal using an interferometric optical fiber sensor. |
| first_indexed | 2024-10-01T05:08:48Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/60243 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:08:48Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/602432023-03-03T15:35:52Z Fiber optic interferometer sensor for responsive hydrogel based heavy metal cation detection Koh, Tee Wee Julian School of Chemical and Biomedical Engineering DRNTU::Engineering This project objective aimed to fuse a Mach-Zehnder type interferometer and using the hydrogel volume phase transition theory to measure the refractive index dependence due to the heavy metal concentration. The refractive index sensor was made by splicing a three centimeter photonic crystal fiber (PCF) and placing it in between two single mode fibers. To allow the coupling of various modes, the air holes of PCF must be fully collapsed at the spliced region. The hydrogel will be coated onto the PCF interferometer via dipping into it. The copolymerizing of both polyacrylic acid with polyvinyl alcohol and cross-linkers incorporated epoxy groups as molecular recognition agents for 5-amino-8-hydroxyquinoline. The heavy metal cation will induced hydrogel to swell and shrink according to the RI changes, and can be transduced to an optical signal using an interferometric optical fiber sensor. Bachelor of Engineering (Chemical and Biomolecular Engineering) 2014-05-26T03:43:54Z 2014-05-26T03:43:54Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/60243 en Nanyang Technological University 77 p. application/pdf |
| spellingShingle | DRNTU::Engineering Koh, Tee Wee Fiber optic interferometer sensor for responsive hydrogel based heavy metal cation detection |
| title | Fiber optic interferometer sensor for responsive hydrogel based heavy metal cation detection |
| title_full | Fiber optic interferometer sensor for responsive hydrogel based heavy metal cation detection |
| title_fullStr | Fiber optic interferometer sensor for responsive hydrogel based heavy metal cation detection |
| title_full_unstemmed | Fiber optic interferometer sensor for responsive hydrogel based heavy metal cation detection |
| title_short | Fiber optic interferometer sensor for responsive hydrogel based heavy metal cation detection |
| title_sort | fiber optic interferometer sensor for responsive hydrogel based heavy metal cation detection |
| topic | DRNTU::Engineering |
| url | http://hdl.handle.net/10356/60243 |
| work_keys_str_mv | AT kohteewee fiberopticinterferometersensorforresponsivehydrogelbasedheavymetalcationdetection |