Evidence map›Paper›PMID 41030219›Full record

ArticleAdvanced healthcare materials2026

Synthetic Hydrogels Incorporating Hydrolytic/Nonhydrolytic Macromer Ratios Exhibit Improved Tunability of In Vivo Degradation and Immune Responses.

Michael D Hunckler, Sophia Kioulaphides, Karen E Martin, Angelica L Torres, Graham F Barber, Stephen W Linderman, Rebecca S Schneider, Andrés J García

Abstract read
In one paragraph

Article in Advanced healthcare materials, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. 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

8 authors.

Michael D HuncklerWoodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Dr NW, Atlanta, GA, 30332, USA.
Sophia KioulaphidesPetit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA.
Karen E MartinWoodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Dr NW, Atlanta, GA, 30332, USA.
Angelica L TorresPetit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA.
Graham F BarberWoodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Dr NW, Atlanta, GA, 30332, USA.
Stephen W LindermanWoodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Dr NW, Atlanta, GA, 30332, USA.
Rebecca S SchneiderPetit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA.
Andrés J GarcíaWoodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Dr NW, Atlanta, GA, 30332, USA.ORCID 0000-0001-6602-2518

Funding

Hydrogels for human beta cell survival, function and evasion of immune rejectionR01DK133702 · NIDDK · GEORGIA INSTITUTE OF TECHNOLOGY · PI GARCIA, ANDRES J, LEI, JI · 2022 to 2025
$3.3M
BIOMATERIALS FOR STEM CELL-DERIVED BETA CELL TRANSPLANTATIONR01DK128840 · NIDDK · GEORGIA INSTITUTE OF TECHNOLOGY · PI GARCIA, ANDRES J, SHIRWAN, HAVAL · 2021 to 2025
$2.1M
Juvenile Diabetes Research Foundation International 3-SRA-2022-1217-S-BNIDDK NIH HHS R01 DK128840NIDDK NIH HHS R01DK128840NIDDK NIH HHS R01 DK133702
6 · The paper itself

Abstract

Proteolytically degradable hydrogels are widely used as delivery carriers in regenerative medicine. However, the in vivo degradation rate of these materials is difficult to control because of site-specific enzymatic activity, implant design, and disease state, impairing tissue regeneration. Hydrogels with crosslinks that degrade hydrolytically offer an alternate route to tune in vivo degradation profile. In this study, a synthetic 4-arm maleimide-terminated poly(ethylene glycol) (PEG-4MAL) hydrogel system that combines hydrolytic ester-linked PEG-4MAL (PEG-4eMAL) macromer with nondegradable amide-linked PEG-4MAL (PEG-4aMAL) macromer in various stoichiometric ratios to tune the degradability rate is engineered. The macromers are crosslinked with dithiothreitol (DTT) via thiol-maleimide click reaction. Rheological analysis shows that a family of PEG-4eMAL/PEG-4aMAL hydrogels has equivalent mechanical properties, but increasing the PEG-4eMAL content increases the rate of degradation in vitro and in vivo. PEG-4eMAL/PEG-4aMAL hydrogels support high viability of encapsulated human cells. Notably, the ratio of PEG-4eMAL/PEG-4aMAL modulates local immune cell recruitment when implanted in the subcutaneous space. These results establish the use of PEG-4eMAL/PEG-4aMAL hydrogels as a hydrolytically degradable platform to tune in vivo degradation and immune responses.

Indexed as

HydrogelsAnimalsCell SurvivalHumansHydrolysisMaleimidesMicePolyethylene GlycolsRheologyHydrogelsmaleimideMaleimidesPolyethylene Glycolshydrogelshydrolytic degradabilitypoly(ethylene glycol)tunability

Identifiers

PMID41030219
PMCPMC12817107

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Registered trials

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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.