Evidence map›Paper›PMID 31600673›Full record

ArticleBiomaterials2019

Zwitterionic polymer/polydopamine coating reduce acute inflammatory tissue responses to neural implants.

Asiyeh Golabchi, Bingchen Wu, Bin Cao, Christopher J Bettinger, Xinyan Tracy Cui

Open access · greenAbstract read
In one paragraph

Article in Biomaterials, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
6.1field-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

55 citing papers in PubMed, 128 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Magnetically Controllable and Degradable Milliscale Swimmers as Intraocular Drug Implants.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  11. Review
  12. Antifouling Zwitterionic Polymer Coatings for Blood-Bearing Medical Devices.Langmuir : the ACS journal of surfaces and colloids · 2025
    Review
  13. Review
  14. Article
  15. In vivo microelectrode arrays for neuroscience.Nature reviews. Methods primers · 2025
    Article
  16. Review
  17. Article
  18. Review
  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

5 authors at 2 institutions in 1 country.

Asiyeh GolabchiDepartment of Bioengineering, University of Pittsburgh, USA; Center for Neural Basis of Cognition, USA.
Bingchen WuDepartment of Bioengineering, University of Pittsburgh, USA; Center for Neural Basis of Cognition, USA.
Bin CaoDepartment of Bioengineering, University of Pittsburgh, USA; Center for Neural Basis of Cognition, USA.
Christopher J BettingerDepartment of Biomedical Engineering, Department of Material Science and Engineering, Carnegie Mellon University, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, USA.
Xinyan Tracy CuiDepartment of Bioengineering, University of Pittsburgh, USA; Center for Neural Basis of Cognition, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, USA. Electronic address: xic11@pitt.edu.
University of Pittsburgh · USCenter for the Neural Basis of Cognition · US

Funding

Improving chronic neural recording performance through biomaterial strategiesR01NS062019 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CUI, XINYAN TRACY · 2008 to 2018
$4.4M
Inhibition of Neural Electrode-mediated Inflammation and Neuronal Cell DeathR01NS089688 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CUI, XINYAN TRACY · 2015 to 2019
$3.1M
Dual Polymer Coatings for High Fidelity and Stable In Vivo Cocaine Sensing From MEAsR21DA043817 · NIDA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CUI, XINYAN TRACY · 2017 to 2018
$421k
NIDA NIH HHS R21 DA043817NINDS NIH HHS R01 NS062019NINDS NIH HHS R01 NS089688
6 · The paper itself

Abstract

The inflammatory brain tissue response to implanted neural electrode devices has hindered the longevity of these implants. Zwitterionic polymers have a potent anti-fouling effect that decreases the foreign body response to subcutaneous implants. In this study, we developed a nanoscale anti-fouling coating composed of zwitterionic poly (sulfobetaine methacrylate) (PSB) and polydopamine (PDA) for neural probes. The addition of PDA improved the stability of the coating compared to PSB alone, without compromising the anti-fouling properties of the film. PDA-PSB coating reduced protein adsorption by 89% compared to bare Si samples, while fibroblast adhesion was reduced by 86%. PDA-PSB coated silicon based neural probes were implanted into mouse brain, and the inflammatory tissue responses to the implants were assessed by immunohistochemistry one week after implantation. The PSB-PDA coated implants showed a significantly decreased expression of glial fibrillary acidic protein (GFAP), a marker for reactive astrocytes, within 70 μm from the electrode-tissue interface (p < 0.05). Additionally, the coating reduced the microglia activation as shown in decreased Iba-1 and lectin staining, and improved blood-brain barrier integrity indicated by reduced immunoglobulin (IgG) leakage into the tissue around the probes. These findings demonstrate that anti-fouling zwitterionic coating is effective in suppressing the acute inflammatory brain tissue response to implants, and should be further investigated for its potential to improve chronic performance of neural implants.

Indexed as

Neural ProsthesesAdsorptionAnimalsCell AdhesionCoated Materials, BiocompatibleIndolesInflammationMaleMethacrylatesMice, Inbred C57BLPolymersSurface PropertiesCoated Materials, BiocompatibleIndolesMethacrylatespolydopaminePolymerssulfobetaine methacrylate polymerBiocompatibilityCatecholGliosisInflammatory tissue responsesNeural implantsPolydopaminePoly sulfobetaine methacrylateProtein adsorptionZwitterionic coating

Identifiers

PMID31600673
PMCPMC6896321
OpenAlexW2978040246

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.