Soft-tough polyacrylamide and polyacrylamide/polyvinyl alcohol/sodium alginate bilayer hydrogels for adaptive grasping and shape recognition.

Human skin achieves high sensitivity and a wide range of tactile perception through its gradient structure and the synergistic function of various receptors. However, significant challenges remain in achieving multifunctional synergy enhancement for artificial skin. This study develops a soft-tough bilayer gradient hydrogel based on a salting-out and ion coordination toughening strategy, achieving high sensitivity (7.

Transforming Thermal Challenges into Functional Advantages through Iron-Polydopamine Interface Engineering of Expandable Microsphere Composites.

Developing materials that integrate an intelligent response and ablation resistance for extreme thermal environments presents significant challenges. In this work, functional composites were developed based on iron-complexed polydopamine-modified expandable microspheres (Fe-PDA@EM) embedded in carbon fiber-reinforced polydimethylsiloxane. The deposition of Fe(III)-complexed PDA on microsphere surfaces establishes a catalytic carbonization pathway that synergizes with the thermal expansion of the microspheres.

Challenges in AI-driven Biomedical Multimodal Data Fusion and Analysis.

The rapid development of biological and medical examination methods has vastly expanded personal biomedical information, including molecular, cellular, image, and electronic health record datasets. Integrating this wealth of information enables precise disease diagnosis, biomarker identification, and treatment design in clinical settings. Artificial intelligence (AI) techniques, particularly deep learning models, have been extensively employed in biomedical applications, demonstrating increased precision, efficiency, and generalization.

The SOC1 gene plays an important role in regulating litchi flowering time.

Litchi (Litchi chinensis Sonn.) is a valuable subtropical fruit tree with high-quality fruit. However, its economic benefits and sustainable development are restrained by a number of challenges.

Ultrafast and facile construction of programmable, multidimensional wrinkled-patterned polyacrylamide/sodium alginate hydrogels for human skin-like tactile perception.

Customizable structures and patterns are becoming powerful tools for biomimetic design and application of soft materials. The construction of long-range ordered self-wrinkled structures on multi-dimensional and complex-shaped surfaces with facile, fast and efficient strategies still faces serious challenges. During the stretch-recovery process, the carboxyl groups in the polyacrylamide/sodium alginate dual network gel form robust coordination with Fe to achieve a hard shell layer, resulting in a modulus mismatch between the inner soft layer and the outer hard layer, thereby forming a wrinkled surface.