Evidence map›Paper›PMID 17631532›Full record

ArticleBiophysical journal2007

Nanopipette delivery of individual molecules to cellular compartments for single-molecule fluorescence tracking.

Andreas Bruckbauer, Peter James, Dejian Zhou, Ji Won Yoon, David Excell, Yuri Korchev, Roy Jones, David Klenerman

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
9.7field-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

27 citing papers in PubMed, 104 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Scanning Ion Conductance Microscopy.Chemical reviews · 2021
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Multifunctional scanning ion conductance microscopy.Proceedings. Mathematical, physical, and engineering sciences · 2017
    Review
  11. Article
  12. From single molecules to life: microscopy at the nanoscale.Analytical and bioanalytical chemistry · 2016
    Review
  13. Article
  14. Review
  15. Article
  16. Nanopipette exploring nanoworld.Nano convergence · 2014
    Review
  17. Imaging the cell surface and its organization down to the level of single molecules.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2013
    Review
  18. Article
  19. 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

8 authors at 3 institutions in 1 country.

Andreas BruckbauerDepartment of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom.
Peter James
Dejian Zhou
Ji Won Yoon
David Excell
Yuri Korchev
Roy Jones
David Klenerman
University of Cambridge · GBBabraham Institute · GBImperial College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have developed a new method, using a nanopipette, for controlled voltage-driven delivery of individual fluorescently labeled probe molecules to the plasma membrane which we used for single-molecule fluorescence tracking (SMT). The advantages of the method are 1), application of the probe to predefined regions on the membrane; 2), release of only one or a few molecules onto the cell surface; 3), when combined with total internal reflection fluorescence microscopy, very low background due to unbound molecules; and 4), the ability to first optimize the experiment and then repeat it on the same cell. We validated the method by performing an SMT study of the diffusion of individual membrane glycoproteins labeled with Atto 647-wheat germ agglutin in different surface domains of boar spermatozoa. We found little deviation from Brownian diffusion with a mean diffusion coefficient of 0.79 +/- 0.04 microm(2)/s in the acrosomal region and 0.10 +/- 0.02 microm(2)/s in the postacrosomal region; this difference probably reflects different membrane structures. We also showed that we can analyze diffusional properties of different subregions of the cell membrane and probe for the presence of diffusion barriers. It should be straightforward to extend this new method to other probes and cells, and it can be used as a new tool to investigate the cell membrane.

Indexed as

NanotechnologyAnimalsCell MembraneDiffusionFluorescent DyesMaleMicroscopy, FluorescenceProtein BindingSpermatozoaSwineWheat Germ AgglutininsFluorescent DyesWheat Germ Agglutinins

Identifiers

PMID17631532
PMCPMC2025666
OpenAlexW2090414044

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.