Evidence map›Paper›PMID 16648165›Full record

ArticleBiophysical journal2006

Interlaced optical force-fluorescence measurements for single molecule biophysics.

Ricardo R Brau, Peter B Tarsa, Jorge M Ferrer, Peter Lee, Matthew J Lang

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
7.8field-weighted citation impact, top 2% of its field
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

53 citing papers in PubMed, 109 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Optical tweezers in single-molecule biophysics.Nature reviews. Methods primers · 2021
    Article
  9. Article
  10. Article
  11. Full molecular trajectories of RNA polymerase at single base-pair resolution.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  12. Article
  13. Mechanically switching single-molecule fluorescence of GFP by unfolding and refolding.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  14. Using the force to find the peptides you're looking for.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  15. Mechanosensing drives acuity ofProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
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

5 authors at 1 institution in 1 country.

Ricardo R BrauDepartment of Mechanical Engineering, Biological Engineering Division, Massachusetts Institute of Technology, Cambridge, 02139, USA.
Peter B Tarsa
Jorge M Ferrer
Peter Lee
Matthew J Lang
Massachusetts Institute of Technology · US

Funding

Subcellular Mechanotransduction in Vascular Smooth Muscle CellsP01HL064858 · NHLBI · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI KAMM, ROGER D. · 2001 to 2005
$7.6M
NHLBI NIH HHS P01 HL064858NHLBI NIH HHS P01HL064858
6 · The paper itself

Abstract

Combining optical tweezers with single molecule fluorescence offers a powerful technique to study the biophysical properties of single proteins and molecules. However, such integration into a combined, coincident arrangement has been severely limited by the dramatic reduction in fluorescence longevity of common dyes under simultaneous exposure to trapping and fluorescence excitation beams. We present a novel approach to overcome this problem by alternately modulating the optical trap and excitation beams to prevent simultaneous exposure of the fluorescent dye. We demonstrate the dramatic reduction of trap-induced photobleaching effects on the common single molecule fluorescence dye Cy3, which is highly susceptible to this destructive pathway. The extension in characteristic fluorophore longevity, a 20-fold improvement when compared to simultaneous exposure to both beams, prolongs the fluorescence emission to several tens of seconds in a combined, coincident arrangement. Furthermore, we show that this scheme, interlaced optical force-fluorescence, does not compromise the trap stiffness or single molecule fluorescence sensitivity at sufficiently high modulation frequencies. Such improvement permits the simultaneous measurement of the mechanical state of a system with optical tweezers and the localization of molecular changes with single molecule fluorescence, as demonstrated by mechanically unzipping a 15-basepair DNA segment labeled with Cy3.

Indexed as

BiophysicsCarbocyaninesDNAEquipment DesignFluorescent DyesLightMicromanipulationProteinsSpectrometry, FluorescenceTime FactorsCarbocyaninescyanine dye 3DNAFluorescent DyesProteins

Identifiers

PMID16648165
PMCPMC1563781
OpenAlexW2160569076

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.