Evidence map›Paper›PMID 40907395›Full record

ArticleBiomaterials2026

Scar-reducing ionically conductive chitosan bandage: Combining ionic and electrical stimulation for optimal wound healing.

Sama Abdulmalik, Sangamesh G Kumbar

Abstract read
In one paragraph

Article in Biomaterials, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

2 authors.

Sama AbdulmalikNebraska Translational Research Center (NTRC), Department of Growth and Development, College of Dentistry, University of Nebraska Medical Center, Omaha, NE, USA.
Sangamesh G KumbarNebraska Translational Research Center (NTRC), Department of Growth and Development, College of Dentistry, University of Nebraska Medical Center, Omaha, NE, USA. Electronic address: skumbar@unmc.edu.

Funding

Targeting PHLPP to treat interval disc degeneration using surgical and drug delivery methodsR01AR078908 · NIAMS · EMORY UNIVERSITY · PI Svenja Illien-Junger · 2022 to 2026
$1.9M
Polysaccharide putty formulations for tissue regenerationR01EB034202 · NIBIB · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI Sangamesh Gurappa Kumbar · 2023 to 2026
$1.5M
Biodegradable Matrices with Structural and Physical Cues for Interface EngineeringR01EB030060 · NIBIB · UNIVERSITY OF CONNECTICUT STORRS · PI NUKAVARAPU, SYAM · 2020 to 2024
$1.4M
Supplement to Support the Acquisition of a High-Precision 3D PrinterR01NS134604 · NINDS · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI Sangamesh Gurappa Kumbar · 2024 to 2026
$1.3M
NIAMS NIH HHS R01 AR078908NIBIB NIH HHS R01 EB030060NIBIB NIH HHS R01 EB034202NINDS NIH HHS R01 NS134604
6 · The paper itself

Abstract

Large, complex wounds frequently exhibit suboptimal healing, leading to scarring and functional impairment. While bioactive materials and electrical stimulation (ES) show promise, their individual limitations call for novel approaches. This study investigates the combined effects of combining 4-aminopyridine (4AP) and electrical stimulation (ES) on human dermal fibroblasts (hDFBs) using a stable, ionically conductive (IC) chitosan-based scaffold for controlled drug delivery. To enable sustained release of the highly water-soluble 4AP, halloysite nanotubes (HNT) were incorporated as secondary carriers within the bandage system. In vitro assays revealed that combining 4AP (100 ng/mL) with ES significantly enhanced hDFB metabolic activity, wound closure, and maintained mitochondrial function along with reduced inflammation under stress condition. Gene expression analysis showed upregulation of key extracellular matrix (ECM) and growth factor genes at day 7, followed by a shift to the remodeling phase by day 14 in vitro. Histological and immunohistochemical analyses revealed improved ECM organization, as indicated by an optimal collagen I/III ratio; enhanced angiogenesis (CD31); increased cellular activity (α-SMA, vimentin, Ki-67); and elevated expression of neurotrophic factors in the combined full-thickness wound treatment group. These findings highlight a potential additive mechanism, in which 4AP may enhance the effects of ES by supporting cellular metabolism. This integrated approach offers a promising, multifaceted strategy for improving dermal wound healing and minimizing scarring, warranting further in vivo investigation for clinical translation.

Indexed as

BandagesChitosanCicatrixElectric StimulationWound Healing4-AminopyridineCells, CulturedElectric ConductivityExtracellular MatrixFibroblastsHumans4-AminopyridineChitosan4-Aminopyridine (4AP)AngiogenesisElectrical stimulation (ES)Extracellular matrix (ECM)Ionically conductive (IC) polymerScarringWound healing

Identifiers

PMID40907395
PMCPMC12878000

What Socratic 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 Socratic graph.