'ysl story'에 해당되는 글 164건

  1. 2015.08.15 :: 2015.8.13 고교전공체험
  2. 2015.07.21 :: 업컨버젼 나노 크리스탈
  3. 2015.07.03 :: 2009년 5월말. 레이저방 YB, OB 모임
  4. 2015.05.27 :: 2015.5 학부졸업논문 발표회

꿈많은 고등학교 1-2학년생 50명!








posted by wizysl
:
자료/연구및기기 2015. 7. 21. 00:00
Tutorial Review

Recent advances in the chemistry of lanthanide-doped upconversion nanocrystals

Feng Wanga and   Xiaogang Liu*a  
Chem. Soc. Rev., 2009,38, 976-989

DOI: 10.1039/B809132N
Received 13 Oct 2008, First published online 12 Feb 2009


Lanthanide ions exhibit unique luminescent properties, including the ability to convert near infrared long-wavelength excitation radiation into shorter visible wavelengths through a process known as photon upconversion. In recent years lanthanide-doped upconversion nanocrystals have been developed as a new class of luminescent optical labels that have become promising alternatives to organic fluorophores and quantum dots for applications in biological assays and medical imaging. These techniques offer low autofluorescence background, large anti-Stokes shifts, sharp emission bandwidths, high resistance to photobleaching, and high penetration depth and temporal resolution. Such techniques also show potential for improving the selectivity and sensitivity of conventional methods. They also pave the way for high throughput screening and miniaturization. This tutorial review focuses on the recent development of various synthetic approaches and possibilities for chemical tuning of upconversion properties, as well as giving an overview of biological applications of these luminescent nanocrystals.


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Volume 832, 17 June 2014, Pages 1–33

Review

Lanthanide upconversion nanoparticles and applications in bioassays and bioimaging: A review

Highlights
•UCNP synthesis and surface modifications, and UC mechanisms and theory are discussed.
•Examples of UCNPs as passive labels and as donors in LRET based assays are described.
•Optical multiplexing capacity of UCNPs for diagnostics and imaging is considered.
•UCNPs are described for use as in vivo biomarkers for multi-modal imaging and theranostics.

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posted by wizysl
:
레이저방/사진첩 2015. 7. 3. 10:46



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posted by wizysl
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레이저방/사진첩 2015. 5. 27. 19:55





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