NIR-responsive nanomaterials and their applications; upconversion nanoparticles and carbon dots: a perspective
Near‐infrared (NIR) light responsive materials have received much attention for diverse applications due to their excellent optical properties. This type of material exhibits upconverted luminescence, a non‐linear optical process in which two or more low energy photons, usually from NIR light irradi...
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| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Online Access: | https://hdl.handle.net/10356/89877 http://hdl.handle.net/10220/47779 |
| _version_ | 1824454251422679040 |
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| author | Chien, Yi-Hsin Chan, Kok Ken Yap, Stephanie Hui Kit Yong, Ken-Tye |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Chien, Yi-Hsin Chan, Kok Ken Yap, Stephanie Hui Kit Yong, Ken-Tye |
| author_sort | Chien, Yi-Hsin |
| collection | NTU |
| description | Near‐infrared (NIR) light responsive materials have received much attention for diverse applications due to their excellent optical properties. This type of material exhibits upconverted luminescence, a non‐linear optical process in which two or more low energy photons, usually from NIR light irradiation are transformed to high energy photons emission through energy transfer upconversion, excited state absorption, photon avalanche or multiphoton absorption. The NIR range of excitation source is favorable for biological imaging and cancer theranostic applications due to their high penetration depth, low autofluorescence, minimal light scattering, reduced photodamage, and negligible phototoxicity. Having these properties, NIR responsive materials such as upconversion nanoparticles (UCNPs) and carbon dots (CDs) which perform upconversion luminescence are actively exploited in a wide variety of applications such as display and sensory technology. While CDs are well known for their versatility in using different chemicals and green precursors to achieve tunable optical properties, UCNPs also have the advantage that a continuous‐wave NIR laser can be used as the excitation source. This article reviews the properties of these two materials in the aspects of luminescence mechanisms and their recent developments in cancer theranostics, display technology, biosensing and metal ions sensing applications. © 2018 Society of Chemical Industry |
| first_indexed | 2025-02-19T03:19:21Z |
| format | Journal Article |
| id | ntu-10356/89877 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:19:21Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/898772020-03-07T14:02:37Z NIR-responsive nanomaterials and their applications; upconversion nanoparticles and carbon dots: a perspective Chien, Yi-Hsin Chan, Kok Ken Yap, Stephanie Hui Kit Yong, Ken-Tye School of Electrical and Electronic Engineering Carbon Dots NIR-Nanoparticles DRNTU::Engineering::Electrical and electronic engineering::Electric apparatus and materials Near‐infrared (NIR) light responsive materials have received much attention for diverse applications due to their excellent optical properties. This type of material exhibits upconverted luminescence, a non‐linear optical process in which two or more low energy photons, usually from NIR light irradiation are transformed to high energy photons emission through energy transfer upconversion, excited state absorption, photon avalanche or multiphoton absorption. The NIR range of excitation source is favorable for biological imaging and cancer theranostic applications due to their high penetration depth, low autofluorescence, minimal light scattering, reduced photodamage, and negligible phototoxicity. Having these properties, NIR responsive materials such as upconversion nanoparticles (UCNPs) and carbon dots (CDs) which perform upconversion luminescence are actively exploited in a wide variety of applications such as display and sensory technology. While CDs are well known for their versatility in using different chemicals and green precursors to achieve tunable optical properties, UCNPs also have the advantage that a continuous‐wave NIR laser can be used as the excitation source. This article reviews the properties of these two materials in the aspects of luminescence mechanisms and their recent developments in cancer theranostics, display technology, biosensing and metal ions sensing applications. © 2018 Society of Chemical Industry 2019-03-06T05:02:52Z 2019-12-06T17:35:38Z 2019-03-06T05:02:52Z 2019-12-06T17:35:38Z 2018 Journal Article Chien, Y.-H., Chan, K. K., Yap, S. H. K., & Yong, K.-T. (2018). NNIR-responsive nanomaterials and their applications; upconversion nanoparticles and carbon dots: a perspective. Journal of Chemical Technology & Biotechnology, 93(6), 1519-1528. doi:10.1002/jctb.5581 0268-2575 https://hdl.handle.net/10356/89877 http://hdl.handle.net/10220/47779 10.1002/jctb.5581 en Journal of Chemical Technology & Biotechnology © 2018 Society of Chemical Industry. All rights reserved. |
| spellingShingle | Carbon Dots NIR-Nanoparticles DRNTU::Engineering::Electrical and electronic engineering::Electric apparatus and materials Chien, Yi-Hsin Chan, Kok Ken Yap, Stephanie Hui Kit Yong, Ken-Tye NIR-responsive nanomaterials and their applications; upconversion nanoparticles and carbon dots: a perspective |
| title | NIR-responsive nanomaterials and their applications; upconversion nanoparticles and carbon dots: a perspective |
| title_full | NIR-responsive nanomaterials and their applications; upconversion nanoparticles and carbon dots: a perspective |
| title_fullStr | NIR-responsive nanomaterials and their applications; upconversion nanoparticles and carbon dots: a perspective |
| title_full_unstemmed | NIR-responsive nanomaterials and their applications; upconversion nanoparticles and carbon dots: a perspective |
| title_short | NIR-responsive nanomaterials and their applications; upconversion nanoparticles and carbon dots: a perspective |
| title_sort | nir responsive nanomaterials and their applications upconversion nanoparticles and carbon dots a perspective |
| topic | Carbon Dots NIR-Nanoparticles DRNTU::Engineering::Electrical and electronic engineering::Electric apparatus and materials |
| url | https://hdl.handle.net/10356/89877 http://hdl.handle.net/10220/47779 |
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