Evidence map›Paper›PMID 19083100›Full record

ArticleBiomedical microdevices2009

Polymer coating of paramagnetic particulates for in vivo oxygen-sensing applications.

Edward Eteshola, Ramasamy P Pandian, 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 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Article
  2. Article
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  4. A Dual pH/OMolecules (Basel, Switzerland) · 2022
    Article
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  6. Article
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  10. Review
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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

4 authors.

Edward EtesholaDepartment of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA.
Ramasamy P Pandian
Stephen C Lee
Periannan Kuppusamy

Funding

Probes and Methods for Clinical OximetryR01EB004031 · NIBIB · OHIO STATE UNIVERSITY · PI KUPPUSAMY, PERIANNAN · 2004 to 2021
$7.1M
NIBIB NIH HHS EB 004031NIBIB NIH HHS R01 EB004031
6 · The paper itself

Abstract

Crystalline lithium phthalocyanine (LiPc) can be used to sense oxygen. To enhance biocompatibility/stability of LiPc, we encapsulated LiPc in Teflon AF (TAF), cellulose acetate (CA), and polyvinyl acetate (PVAc) (TAF, previously used to encapsulate LiPc, was a comparator). We identified water-miscible solvents that don't dissolve LiPc crystals, but are solvents for the polymers, and encapsulated crystals by solvent evaporation. Oxygen sensitivity of films was characterized in vitro and in vivo. Encapsulation did not change LiPc oximetry properties in vitro at anoxic conditions or varying partial pressures of oxygen (pO2). EPR linewidth of encapsulated particles was linear with pO2, responding to pO2 changes quickly and reproducibly for dynamic measurements. Encapsulated LiPc was unaffected by biological oxidoreductants, stable in vivo for four weeks. Oximetry, stability and biocompatibility properties of LiPc films were comparable, but both CA and PVAc films are cheaper, and easier to fabricate and handle than TAF films, making them superior.

Indexed as

Biosensing TechniquesCoated Materials, BiocompatibleElectron Spin Resonance SpectroscopyIndolesMagneticsOrganometallic CompoundsOximetryOxygenPolymersReproducibility of ResultsSensitivity and SpecificityCoated Materials, BiocompatibleIndoleslithium phthalocyanineOrganometallic CompoundsOxygenPolymers

Identifiers

PMID19083100
PMCPMC2722730

What OpenQuestion holds

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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.