Results 51 to 60 of about 19,374 (259)

Shape Memory Polymer Composites: 4D Printing, Smart Structures, and Applications

Research, 2023
Shape memory polymers (SMPs) and their composites (SMPCs) are smart materials that can be stably deformed and then return to their original shape under external stimulation, thus having a memory of their shape.
Shiyu Yan, Fenghua Zhang, Lan Luo, Linlin Wang, Yanju Liu, Jinsong Leng   +5 more
doaj   +1 more source

Interface Engineering via Sb2Te3 Deposition Enables High‐Performance SWCNT Film Thermoelectrics

Advanced Functional Materials, EarlyView.
SWCNTs are promising for flexible thermoelectrics but suffer from low performance. Here, cold‐pressed SWCNT films combined with deposited Sb2Te3 form engineered interfaces that enhance charge transport and energy filtering. The composite achieves a high power factor (25.82 µW cm−1 K−2) and delivers a power density of 3 mW cm−2 at ΔT = 40 K, with ...
Yuan‐Meng Liu, Xiao‐Lei Shi, Ziyu Wang, Muyang Huang, Meng Li, Xiaolong Sun, Yong Liu, Shanshan Zhou, Yi Zhao, Yineng Gou, Yue Hou, Zhi‐Gang Chen   +11 more
wiley   +1 more source

4D Printing at the Microscale [PDF]

Advanced Functional Materials, 2019
Abstract3D printing of adaptive and dynamic structures, also known as 4D printing, is one of the key challenges in contemporary materials science. The additional dimension refers to the ability of 3D printed structures to change their properties—for example, shape—over time in a controlled fashion as the result of external stimulation.
Christoph A. Spiegel, Marc Hippler, Alexander Münchinger, Martin Bastmeyer, Christopher Barner‐Kowollik, Martin Wegener, Eva Blasco   +6 more
openaire   +4 more sources

Synergistic Solar Interfacial Evaporation and Photocatalysis Enabled by a Hierarchical Porous Hydrogel Reactor

Advanced Functional Materials, EarlyView.
A tree‐inspired hydrogel interfacial reactor couples solar evaporation with photocatalysis for simultaneous desalination and waste water treatment. The bilayer design achieves 2.14 kg·m−2·h−1 evaporation rate with 79% dye degradation under one sun, demonstrating that photothermal heating and evaporation induced pollutant enrichment create a self ...
Yan Zhao, Xiaolong Ma, Zihong Wu, Muhammad Amjad, Dongsheng Wen   +4 more
wiley   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

Advanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han, Shuvra Mondal, Sungkeun Han, Chan‐Hwi Eom, Venkata Ramesh Naganaboina, Suk‐Won Hwang   +5 more
wiley   +1 more source

4D Printing: Research Focuses and Prospects

Designs
As an emerging technology in the field of additive manufacturing, 4D printing is highly disruptive to traditional manufacturing processes. Therefore, it is necessary to systematically summarize the research on 4D printing to promote the development of ...
Yuran Jin, Jiahui Liu
doaj   +1 more source

Direct Ink Writing Based 4D Printing of Materials and Their Applications

Advanced Science, 2020
4D printing has attracted academic interest in the recent years because it endows static printed structures with dynamic properties with the change of time.
Xue Wan, Lan Luo, Yanju Liu, Jinsong Leng   +3 more
doaj   +1 more source

Bio‐Inspired Biopolymeric Implantable Platform for Localized and Sustained Drug Delivery in Solid Tumor Treatment

Advanced Functional Materials, EarlyView.
A bio‐inspired biopolymeric implantable drug delivery platform enables localized and sustained release of 7‐ethyl‐10‐hydroxycamptothecin (SN‐38) in solid tumor treatment. The three‐dimensional (3D) structured crosslinked‐chitosan implants are fabricated via 3D‐printed molds and provide drug release over 3 months, significantly inhibiting tumor growth ...
Mercedes Lozano‐Garcia, Constantine Vogiatzis, Alejandra Planells‐Devesa, Emre Dikici, Caroline Vieira Maluf, Vasudev Vivekanand Nayak, Paulo G. Coelho, Lukasz Witek, Alicia Bilbao, Daniel Bilbao, Prasoon Mohan, Sapna Deo, Sylvia Daunert   +12 more
wiley   +1 more source

4D printing roadmap

Smart Materials and Structures
Abstract Four-dimensional (4D) printing is an advanced manufacturing technology that has rapidly emerged as a transformative tool with the capacity to reshape various research domains and industries. Distinguished by its integration of time as a dimension, 4D printing allows objects to dynamically respond to external stimuli, setting it ...
Mahdi Bodaghi, Linlin Wang, Fenghua Zhang, Yanju Liu, Jinsong Leng, Rubo Xing, Michael D. Dickey, Saeedeh Vanaei, Mohammad Elahinia, Suong V. Hoa, Deguo Zhang, Katarina Winands, Thomas Gries, Saqlain Zaman, Hesam Soleimanzadeh, Tibor Barši Palmić, Janko Slavič, Yonas Tadesse, Qinglei Ji, Chun Zhao, Lei Feng, Kumkum Ahmed, MD Nahin Islam Shiblee, Lubna Zeenat, Falguni Pati, Leonid Ionov, Atchara Chinnakorn, Wiwat Nuansing, Ana M. Sousa, Joana Henriques, Ana P. Piedade, Eva Blasco, Honggeng Li, Bingcong Jian, Qi Ge, Frédéric Demoly, H. Jerry Qi, J.C. André, Marwan Nafea, Yun-Fei Fu, Bernard Rolfe, Ye Tao, Guanyun Wang, Ali Zolfagharian   +43 more
  +9 more sources

Contactless reversible 4D-printing for 3D-to-3D shape morphing

Virtual and Physical Prototyping, 2020
4D printing provides a means to create dynamic structures for self-actuating devices fabricated by additive manufacturing techniques. Most existing 4D printing processes are only capable of one-way shape morphing using a single mechanism for stimulation.
Amelia Yilin Lee, Aiwu Zhou, Jia An, Chee Kai Chua, Yi Zhang   +4 more
doaj   +1 more source