Evidence map›Paper›PMID 22352658›Full record

ArticleJournal of biomedical optics2012

Phasor imaging with a widefield photon-counting detector.

Ryan A Colyer, Oswald H W Siegmund, Anton S Tremsin, John V Vallerga, Shimon Weiss, Xavier Michalet

Abstract read
In one paragraph

Article in Journal of biomedical optics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Optica · 2022
    Article
  7. Article
  8. Article
  9. Wide-field time-gated SPAD imager for phasor-based FLIM applications.Methods and applications in fluorescence · 2020
    Article
  10. Article
  11. Phasor-based widefield FLIM using a gated 512×512 single-photon SPAD imager.Proceedings of SPIE--the International Society for Optical Engineering · 2019
    Article
  12. Article
  13. AlliGator: A Phasor Computational Platform for FastOptical molecular probes, imaging and drug delivery · 2017
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Development of new photon-counting detectors for single-molecule fluorescence microscopy.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2013
    Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Ryan A ColyerUCLA, Department of Chemistry and Biochemistry, 607 Charles E. Young Drive East, Los Angeles, California, USA.
Oswald H W Siegmund
Anton S Tremsin
John V Vallerga
Shimon Weiss
Xavier Michalet

Funding

Multimodal Qdot Probes for Bioimaging of Cells and Tumors in Small AnimalsR01EB000312 · NIBIB · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI WEISS, SHIMON · 2002 to 2010
$7.5M
High-Resolution, High Speed, High-Throughput 3-Dimensional Detector for BiologyR01EB006353 · NIBIB · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI WEISS, SHIMON · 2007 to 2010
$1.6M
Multipixel Hybrid Photon-Counting Detector for High-Throughput Single-Molecule AsR01GM084327 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI WEISS, SHIMON · 2008 to 2010
$667k
NIBIB NIH HHS EB000312-06A2NIBIB NIH HHS R01 EB000312NIBIB NIH HHS R01 EB006353NIGMS NIH HHS 5R01GM084327NIGMS NIH HHS R01 GM084327
6 · The paper itself

Abstract

Fluorescence lifetime can be used as a contrast mechanism to distinguish fluorophores for localization or tracking, for studying molecular interactions, binding, assembly, and aggregation, or for observing conformational changes via Förster resonance energy transfer (FRET) between donor and acceptor molecules. Fluorescence lifetime imaging microscopy (FLIM) is thus a powerful technique but its widespread use has been hampered by demanding hardware and software requirements. FLIM data is often analyzed in terms of multicomponent fluorescence lifetime decays, which requires large signals for a good signal-to-noise ratio. This confines the approach to very low frame rates and limits the number of frames which can be acquired before bleaching the sample. Recently, a computationally efficient and intuitive graphical representation, the phasor approach, has been proposed as an alternative method for FLIM data analysis at the ensemble and single-molecule level. In this article, we illustrate the advantages of combining phasor analysis with a widefield time-resolved single photon-counting detector (the H33D detector) for FLIM applications. In particular we show that phasor analysis allows real-time subsecond identification of species by their lifetimes and rapid representation of their spatial distribution, thanks to the parallel acquisition of FLIM information over a wide field of view by the H33D detector. We also discuss possible improvements of the H33D detector's performance made possible by the simplicity of phasor analysis and its relaxed timing accuracy requirements compared to standard time-correlated single-photon counting (TCSPC) methods.

Indexed as

Fluorescence Resonance Energy TransferGreen Fluorescent ProteinsHeLa CellsHumansImage Processing, Computer-AssistedMicroscopy, FluorescencePhotonsQuantum Dotsenhanced green fluorescent proteinGreen Fluorescent Proteins

Identifiers

PMID22352658
PMCPMC3380817

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.