Evidence map›Paper›PMID 19291409›Full record

ArticleBiomedical microdevices2009

Fabrication and physical evaluation of a polymer-encapsulated paramagnetic probe for biomedical oximetry.

Guruguhan Meenakshisundaram, Edward Eteshola, Ramasamy P Pandian, Anna Bratasz, Stephen C Lee, Periannan Kuppusamy

Abstract read
In one paragraph

Article in Biomedical microdevices, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

24 citing papers in PubMed, 43 citations in OpenAlex.

  1. Review
  2. Article
  3. OxyTrack: A Novel Needle Sensor for In Situ Oximetry.Magnetic resonance in medicine · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Development of an L-band rapid scan EPR digital console.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2019
    Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Advances in probes and methods for clinical EPR oximetry.Advances in experimental medicine and biology · 2014
    Review
  18. Article
  19. Article
  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

6 authors at 1 institution in 1 country.

Guruguhan MeenakshisundaramCenter for Biomedical EPR Spectroscopy and Imaging, The Ohio State University, Columbus, OH 43210, USA.
Edward Eteshola
Ramasamy P Pandian
Anna Bratasz
Stephen C Lee
Periannan Kuppusamy
Lung Institute · US

Funding

Probes and Methods for Clinical OximetryR01EB004031 · NIBIB · OHIO STATE UNIVERSITY · PI KUPPUSAMY, PERIANNAN · 2004 to 2021
$7.1M
NIBIB NIH HHS EB004031NIBIB NIH HHS R01 EB004031
6 · The paper itself

Abstract

Lithium octa-n-butoxynaphthalocyanine (LiNc-BuO) is a promising probe for biological electron paramagnetic resonance (EPR) oximetry and is being developed for clinical use. However, clinical applicability of LiNc-BuO may be hindered by potential limitations associated with biocompatibility, biodegradation, and migration of individual crystals in tissue. To overcome these limitations, we have encapsulated LiNc-BuO crystals in polydimethyl siloxane (PDMS), an oxygen-permeable and bioinert polymer, to fabricate conveniently implantable and retrievable oxygen-sensing chips. Encapsulation was performed by a simple cast-molding process, giving appreciable control over size, shape, thickness and spin density of chips. The in vitro oxygen response of the chip was linear, reproducible, and not significantly different from that of unencapsulated crystals. Cast-molding of the structurally-flexible PDMS enabled the fabrication of chips with tailored spin densities, and ensured non-exposure of embedded LiNc-BuO, mitigating potential biocompatibility/toxicological concerns. Our results establish PDMS-encapsulated LiNc-BuO as a promising candidate for further biological evaluation and potential clinical application.

Indexed as

Spin LabelsBiocompatible MaterialsElectron Spin Resonance SpectroscopyMaterials TestingMolecular ProbesOximetryPorphyrinsSiliconesBiocompatible Materialslithium octa-n-butoxynaphthalocyanineMolecular ProbespolymethylsiloxanePorphyrinsSiliconesSpin Labels

Identifiers

PMID19291409
PMCPMC2718321
OpenAlexW1981469372

What OpenQuestion holds

Textmetadata
LicenceTDM
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.