Evidence map›Paper›PMID 40808586›Full record

ArticleMacromolecular rapid communications2025

Dual-Stimuli Responsive and Sustainable PLA/APHA/TPU Blend for 4D Printing.

Shafahat Ali, Mamoun Alshihabi, Logan Beard, Ibrahim Deiab, Salman Pervaiz

Abstract read
In one paragraph

Article in Macromolecular rapid communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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.

Shafahat AliAdvanced Manufacturing Lab (AML) School of Engineering, University of Guelph, Guelph, Ontario, Canada.ORCID https://orcid.org/0000-0002-0782-6396
Mamoun AlshihabiAdvanced Manufacturing Lab (AML) School of Engineering, University of Guelph, Guelph, Ontario, Canada.
Logan BeardAdvanced Manufacturing Lab (AML) School of Engineering, University of Guelph, Guelph, Ontario, Canada.
Ibrahim DeiabAdvanced Manufacturing Lab (AML) School of Engineering, University of Guelph, Guelph, Ontario, Canada.
Salman PervaizDepartment of Industrial and Mechanical Engineering, Rochester Institute of Technology, Dubai, United Arab Emirates.

Funding

GENESIS BioindustriesNatural Science and Engineering Research Council of Canada 401363
6 · The paper itself

Abstract

4D printing of shape memory polymers (SMPs) offers transformative potential for patient-specific medical devices, yet current SMPs often face a trade-off between mechanical toughness and low-temperature activation. This study presents a novel PLA/APHA/TPU blend filament for 3D printing that overcomes this limitation by combining high strength and flexibility with low-temperature shape memory activation-features not previously achieved in PLA-based SMPs. The uniform dispersion of TPU and APHA in the PLA matrix creates a composite with enhanced tensile strength, modulus, and elongation, addressing the brittleness typical of neat PLA. The optimized 60/20/20 wt.% formulation enables rapid shape recovery at ∼39.5°C, significantly below PLA's glass transition, with near-complete shape fixity (∼100%) and high recovery ratios (>92%) under both thermal and mechanical stimuli. This dual-responsive behavior is driven by the synergistic roles of TPU (providing ductility) and APHA (enhancing flexibility and thermal sensitivity). The composite also retains excellent printability and biocompatibility, making it ideal for next-generation biomedical SMP applications such as 4D-printed orthopedic braces, soft robotic actuators, and adaptive implants. Using bio-based, biodegradable polymers, this work advances eco-friendly, high-performance SMPs for additive manufacturing, setting a new benchmark for PLA-based 4D-printable materials.

Indexed as

PolyestersPolymersPrinting, Three-DimensionalBiocompatible MaterialsTemperatureTensile StrengthBiocompatible MaterialsPolyesterspoly(lactide)Polymers4D printingbiodegradable SMPheat‐activated shape memory polymerorthopedic devicesrecovery mechanicssoft robotics

Identifiers

PMID40808586
PMCPMC12590943

What OpenQuestion holds

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LicenceCC BY
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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.