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Shape-morphing greenhouse: design of a thermally responsive transparent 4D-printed structure
A proof-of-concept transparent 4D-printed PLA greenhouse structure was tested for thermally driven shape-morphing ventilation using bio-inspired mechanisms, showing concept potential but material and structural limits.
Mechanical Properties, Self-Healing Characteristics, and Chloride-Ion Penetration Resistance of Cement-Free Composites Incorporating Aluminosilicate Material-Based Capsules
Cement-free alkali-activated composites containing aluminosilicate capsules show improved self-healing-related strength recovery and substantially better chloride-ion penetration resistance.
Revolutionizing Personalized Medicine with 4D Printing in Drug Delivery
4D printing uses dynamic materials that change with temperature, humidity, and pH to enable environment- and body-signal–dependent, personalized drug delivery.
Applications and Research of 4D Printing in Material Design
4D printing integrates smart materials into additive manufacturing so cured parts can undergo programmable, stimulus-driven shape and functionality changes over time.
Thiadiazole-Based Stimuli-Responsive Organic Receptors for Smart Biomaterial Applications
The study presents a thiadiazole-based receptor that shows promise for colorimetric sensing in smart biomaterials.
Performance evaluation of a Nickel-Titanium shape memory alloy-based thermostat valve
This study presents a Nickel-Titanium shape memory alloy thermostat valve that significantly improves thermal response and efficiency in automotive cooling systems.
Isogeometric topology optimization of shape memory alloy based structures
This research presents an isogeometric analysis-based topology optimization tool for shape memory alloy structures, significantly reducing computational time.
Model-Based Design of Antagonistic Shape Memory Alloy Actuators for Bistable Structures
This research proposes a predictive model for designing antagonistic shape memory alloy actuators for adaptive bistable structures.
Low-Frequency Broadband Bandgap of a Tunable Metamaterial Beam with Electromagnetic Resonators: Numerical and Experimental Study
This study explores a tunable metamaterial beam that achieves low-frequency broadband bandgap broadening through electromagnetic resonators.
Development and in vitro evaluation of borax cross-linked tamarind seed polysaccharide hydrogel films as an antioxidant and self-healing material for wound healing
A borax-cross-linked tamarind seed polysaccharide hydrogel film shows antioxidant activity and rapid self-healing, with in vitro hemocompatibility for wound dressing use.
Exploring 4D Printing Technology for Biomedical Applications
The editorial argues that adding a time dimension to 3D printing via stimuli-responsive materials enables dynamic, personalized biomedical devices such as adaptive implants and controlled drug-release hydrogel capsules.
Invisible design and acoustic scattering of metamaterial plates with active feedback control
Active feedback-controlled metamaterial plates are designed to reduce low-frequency acoustic scattering by tuning dynamic effective density, enabling “invisible” behavior for underwater vehicles.
Robotic conformal 4D printing of liquid crystal elastomers
This research introduces a robotic 4D printing method for liquid crystal elastomers, enabling shape-changing structures on complex surfaces.
Smart Material Technologies for Energy-Efficient Buildings in Iraq
Smart coatings can significantly enhance energy efficiency and reduce carbon emissions in residential buildings in hot climates.
Thin Acoustic-Composite Structures With Metamaterial Inclusions for Enhanced Low-Frequency Sound Absorption
Thin porous acoustic composites with tunable labyrinthine metamaterial inclusions achieve enhanced low-frequency absorption via multiresonant behavior confirmed by acoustic tests.
Machine learning-guided tuning of shape memory behavior in 4D-printed single-layer elastomer strip
Machine learning-guided optimization of 4D-printed PU/Eudragit S100/MTZ elastomer strips enables strong mechanical performance and high shape recovery for pH-responsive, site-specific drug delivery.
Fluorescent Shape Memory Polymer with Dynamic Aggregation-Induced Emission Cross-Linking: Visualization and Prediction of Shape Memory Performance
A fluorescent shape-memory polymer is designed with dynamic aggregation-induced emission cross-linking to enable visualization and prediction of its shape-memory performance.
3D printing on pre-stressed textiles: peel test evaluation of adhesion factors in 4D textiles
A factorial study identifies printing and pre-tension parameters that maximize peel-test adhesion between 3D-printed reinforcements and pre-stressed textile substrates in 4D textiles.