Thermal Effect during Laser-Induced Plasmonic Heating of Polyelectrolyte-Coated Gold Nanorods in Well Plates
We examined the generation and transfer of heat when laser irradiation is applied to water containing a suspension of gold nanorods coated with different polyelectrolytes. The ubiquitous well plate was used as the geometry for these studies. The predictions of a finite element model were compared to...
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MDPI AG
2023-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/5/845 |
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| author | Sujin Jiracheewanun Michael B. Cortie Dakrong Pissuwan |
| author_facet | Sujin Jiracheewanun Michael B. Cortie Dakrong Pissuwan |
| author_sort | Sujin Jiracheewanun |
| collection | DOAJ |
| description | We examined the generation and transfer of heat when laser irradiation is applied to water containing a suspension of gold nanorods coated with different polyelectrolytes. The ubiquitous well plate was used as the geometry for these studies. The predictions of a finite element model were compared to experimental measurements. It is found that relatively high fluences must be applied in order to generate biologically relevant changes in temperature. This is due to the significant lateral heat transfer from the sides of the well, which strongly limits the temperature that can be achieved. A 650 mW continuous-wave (CW) laser, with a wavelength that is similar to the longitudinal plasmon resonance peak of the gold nanorods, can deliver heat with an overall efficiency of up to 3%. This is double the efficiency achievable without the nanorods. An increase in temperature of up to 15 °C can be achieved, which is suitable for the induction of cell death by hyperthermia. The nature of the polymer coating on the surface of the gold nanorods is found to have a small effect. |
| first_indexed | 2024-03-11T07:15:16Z |
| format | Article |
| id | doaj.art-24633510ceef4c49b3f433268b67ea7f |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T07:15:16Z |
| publishDate | 2023-02-01 |
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| series | Nanomaterials |
| spelling | doaj.art-24633510ceef4c49b3f433268b67ea7f2023-11-17T08:17:16ZengMDPI AGNanomaterials2079-49912023-02-0113584510.3390/nano13050845Thermal Effect during Laser-Induced Plasmonic Heating of Polyelectrolyte-Coated Gold Nanorods in Well PlatesSujin Jiracheewanun0Michael B. Cortie1Dakrong Pissuwan2Department of Mechanical Technology Education, Faculty of Industrial Education and Technology, King Mongkut’s University of Technology Thonburi, Bangkok 10400, ThailandSchool of Mechanical, Materials, Mechatronics and Biomedical Engineering, University of Wollongong, Wollongong 2522, AustraliaMaterials Science and Engineering Program, Faculty of Science, Mahidol University, Bangkok 10400, ThailandWe examined the generation and transfer of heat when laser irradiation is applied to water containing a suspension of gold nanorods coated with different polyelectrolytes. The ubiquitous well plate was used as the geometry for these studies. The predictions of a finite element model were compared to experimental measurements. It is found that relatively high fluences must be applied in order to generate biologically relevant changes in temperature. This is due to the significant lateral heat transfer from the sides of the well, which strongly limits the temperature that can be achieved. A 650 mW continuous-wave (CW) laser, with a wavelength that is similar to the longitudinal plasmon resonance peak of the gold nanorods, can deliver heat with an overall efficiency of up to 3%. This is double the efficiency achievable without the nanorods. An increase in temperature of up to 15 °C can be achieved, which is suitable for the induction of cell death by hyperthermia. The nature of the polymer coating on the surface of the gold nanorods is found to have a small effect.https://www.mdpi.com/2079-4991/13/5/845gold nanorodsoptical propertiesphotoconductivitypolyelectrolyte |
| spellingShingle | Sujin Jiracheewanun Michael B. Cortie Dakrong Pissuwan Thermal Effect during Laser-Induced Plasmonic Heating of Polyelectrolyte-Coated Gold Nanorods in Well Plates Nanomaterials gold nanorods optical properties photoconductivity polyelectrolyte |
| title | Thermal Effect during Laser-Induced Plasmonic Heating of Polyelectrolyte-Coated Gold Nanorods in Well Plates |
| title_full | Thermal Effect during Laser-Induced Plasmonic Heating of Polyelectrolyte-Coated Gold Nanorods in Well Plates |
| title_fullStr | Thermal Effect during Laser-Induced Plasmonic Heating of Polyelectrolyte-Coated Gold Nanorods in Well Plates |
| title_full_unstemmed | Thermal Effect during Laser-Induced Plasmonic Heating of Polyelectrolyte-Coated Gold Nanorods in Well Plates |
| title_short | Thermal Effect during Laser-Induced Plasmonic Heating of Polyelectrolyte-Coated Gold Nanorods in Well Plates |
| title_sort | thermal effect during laser induced plasmonic heating of polyelectrolyte coated gold nanorods in well plates |
| topic | gold nanorods optical properties photoconductivity polyelectrolyte |
| url | https://www.mdpi.com/2079-4991/13/5/845 |
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