Evidence map›Paper›PMID 27516331›Full record

ArticleCarbohydrate polymers2016

Injectable and microporous scaffold of densely-packed, growth factor-encapsulating chitosan microgels.

Michael S Riederer, Brennan D Requist, Karin A Payne, J Douglas Way, Melissa D Krebs

Abstract read
In one paragraph

Article in Carbohydrate polymers, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Recent developments in chitosan based microgels and their hybrids.International journal of biological macromolecules · 2024
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Jammed Microgel Inks for 3D Printing Applications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2019
    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.

Michael S RiedererDepartment of Chemical & Biological Engineering, Colorado School of Mines, 1613 Illinois Street, Golden, CO 80401, United States. Electronic address: mriedere@mines.edu.
Brennan D RequistDepartment of Chemical & Biological Engineering, Colorado School of Mines, 1613 Illinois Street, Golden, CO 80401, United States. Electronic address: brequist@mines.edu.
Karin A PayneDepartment of Orthopedics, University of Colorado Anschutz Medical Campus, 12800 E. 19th Avenue, Aurora, CO 80045, United States. Electronic address: Karin.payne@ucdenver.edu.
J Douglas WayDepartment of Chemical & Biological Engineering, Colorado School of Mines, 1613 Illinois Street, Golden, CO 80401, United States. Electronic address: dway@mines.edu.
Melissa D KrebsDepartment of Chemical & Biological Engineering, Colorado School of Mines, 1613 Illinois Street, Golden, CO 80401, United States. Electronic address: mdkrebs@mines.edu.

Funding

Endogenous repair of growth plate injuries by local and sequential delivery of factors that inhibit osteogenesis and promote chondrogenesisR03AR068087 · NIAMS · UNIVERSITY OF COLORADO DENVER · PI PAYNE, KARIN A · 2016 to 2018
$244k
NIAMS NIH HHS R03 AR068087
6 · The paper itself

Abstract

In this work, an emulsion crosslinking method was developed to produce chitosan-genipin microgels which acted as an injectable and microporous scaffold. Chitosan was characterized with respect to pH by light scattering and aqueous titration. Microgels were characterized with swelling, light scattering, and rheometry of densely-packed microgel solutions. The results suggest that as chitosan becomes increasingly deprotonated above the pKa, repulsive forces diminish and intermolecular attractions cause pH-responsive chain aggregation; leading to microgel-microgel aggregation as well. The microgels with the most chitosan and least cross-linker showed the highest yield stress and a storage modulus of 16kPa when condensed as a microgel paste at pH 7.4. Two oppositely-charged growth factors could be encapsulated into the microgels and endothelial cells were able to proliferate into the 3D microgel scaffold. This work motivates further research on the applications of the chitosan microgel scaffold as an injectable and microporous scaffold in regenerative medicine.

Indexed as

ChitosanDrug Delivery SystemsGelsHumansHydrogen-Ion ConcentrationMuramidaseVascular Endothelial Growth Factor AChitosanGelsMuramidaseVascular Endothelial Growth Factor AVEGFA protein, humanChitosanInjectableMicrogelRegenerative medicineScaffold

Identifiers

PMID27516331
PMCPMC4988396

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.