Using 915 nm Laser Excited Tm3+/Er3+/Ho3+-Doped NaYbF4 Upconversion Nanoparticles for in Vitro and Deeper in Vivo Bioimaging without Overheating Irradiation
(2011) In ACS Nano 5(5). p.3744-3757- Abstract
- Successful further development of superhigh-constrast upconversion (UC) bioimaging requires addressing the existing paradox: 980 nm laser light is used to excite upconversion nanoparticles (UCNPs), while 980 nm light has strong optical absorption of water and biological specimens. The overheating caused by 980 nm excitation laser light in UC bioimaging is computationally and experimentally investigated for the first time. A new promising excitation approach for better near-infrared to near-infrared (NIR-to-NIR) UC photoluminescence in vitro or in vivo imaging is proposed employing a cost-effective 915 nm laser. This novel laser excitation method provides drastically less heating of the biological specimen and larger imaging depth In the... (More)
- Successful further development of superhigh-constrast upconversion (UC) bioimaging requires addressing the existing paradox: 980 nm laser light is used to excite upconversion nanoparticles (UCNPs), while 980 nm light has strong optical absorption of water and biological specimens. The overheating caused by 980 nm excitation laser light in UC bioimaging is computationally and experimentally investigated for the first time. A new promising excitation approach for better near-infrared to near-infrared (NIR-to-NIR) UC photoluminescence in vitro or in vivo imaging is proposed employing a cost-effective 915 nm laser. This novel laser excitation method provides drastically less heating of the biological specimen and larger imaging depth In the animals or tissues due to quite low water absorption. Experimentally obtained thermal-graphic maps of the mouse in response to the laser heating are investigated to demonstrate the less heating advantage of the 915 nm laser. Our tissue phantom experiments and simulations verified that the 915 nm laser is superior to the 980 nm laser for deep tissue imaging. A novel and facile strategy for surface functionalization is utilized to render UCNPs hydrophilic, stable, and cell targeting. These as-prepared UCNPs were characterized by TEM, emission spectroscopy, XRD, FTIR, and zeta potential. Specifically targeting UCNPs excited with a 915 nm laser have shown very high contrast UC bioimaging. Highly stable DSPE-mPEG-5000-encapsulated UCNPs were injected into mice to perform in vivo imaging. Imaging and spectroscopy analysis of UC photoluminescence demonstrated that a 915 nm laser can serve as a new promising excitation light for UC animal imaging. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1986602
- author
- Zhan, Qiuqiang ; Qian, Jun ; Liang, Huijuan ; Somesfalean, Gabriel LU ; Wang, Dan ; He, Sailing ; Zhang, Zhiguo and Andersson-Engels, Stefan LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- upconversion nanoparticles, bioimaging, deep imaging, overheating free, near-infrared
- in
- ACS Nano
- volume
- 5
- issue
- 5
- pages
- 3744 - 3757
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000290826800040
- scopus:80051529630
- pmid:21513307
- ISSN
- 1936-086X
- DOI
- 10.1021/nn200110j
- language
- English
- LU publication?
- yes
- id
- ee73bbc1-d3f9-4c53-9276-e78a7973afad (old id 1986602)
- date added to LUP
- 2016-04-01 11:00:08
- date last changed
- 2022-04-28 03:30:59
@article{ee73bbc1-d3f9-4c53-9276-e78a7973afad,
abstract = {{Successful further development of superhigh-constrast upconversion (UC) bioimaging requires addressing the existing paradox: 980 nm laser light is used to excite upconversion nanoparticles (UCNPs), while 980 nm light has strong optical absorption of water and biological specimens. The overheating caused by 980 nm excitation laser light in UC bioimaging is computationally and experimentally investigated for the first time. A new promising excitation approach for better near-infrared to near-infrared (NIR-to-NIR) UC photoluminescence in vitro or in vivo imaging is proposed employing a cost-effective 915 nm laser. This novel laser excitation method provides drastically less heating of the biological specimen and larger imaging depth In the animals or tissues due to quite low water absorption. Experimentally obtained thermal-graphic maps of the mouse in response to the laser heating are investigated to demonstrate the less heating advantage of the 915 nm laser. Our tissue phantom experiments and simulations verified that the 915 nm laser is superior to the 980 nm laser for deep tissue imaging. A novel and facile strategy for surface functionalization is utilized to render UCNPs hydrophilic, stable, and cell targeting. These as-prepared UCNPs were characterized by TEM, emission spectroscopy, XRD, FTIR, and zeta potential. Specifically targeting UCNPs excited with a 915 nm laser have shown very high contrast UC bioimaging. Highly stable DSPE-mPEG-5000-encapsulated UCNPs were injected into mice to perform in vivo imaging. Imaging and spectroscopy analysis of UC photoluminescence demonstrated that a 915 nm laser can serve as a new promising excitation light for UC animal imaging.}},
author = {{Zhan, Qiuqiang and Qian, Jun and Liang, Huijuan and Somesfalean, Gabriel and Wang, Dan and He, Sailing and Zhang, Zhiguo and Andersson-Engels, Stefan}},
issn = {{1936-086X}},
keywords = {{upconversion nanoparticles; bioimaging; deep imaging; overheating free; near-infrared}},
language = {{eng}},
number = {{5}},
pages = {{3744--3757}},
publisher = {{The American Chemical Society (ACS)}},
series = {{ACS Nano}},
title = {{Using 915 nm Laser Excited Tm3+/Er3+/Ho3+-Doped NaYbF4 Upconversion Nanoparticles for in Vitro and Deeper in Vivo Bioimaging without Overheating Irradiation}},
url = {{http://dx.doi.org/10.1021/nn200110j}},
doi = {{10.1021/nn200110j}},
volume = {{5}},
year = {{2011}},
}