Results 81 to 90 of about 607,172 (259)

Eco-friendly sliding components - Friction and wear of selected biodegradable plastics

Polymer Testing
Plastic waste, along with ubiquitous microplastics, is one of the most pressing environmental challenges today. In light of these concerns, biodegradable plastics have been considered a promising alternative (to conventional plastics).
Maciej Kujawa
doaj   +1 more source

Recent Developments in Polyurethane-Based Materials for Bone Tissue Engineering

, 2021
To meet the needs of clinical medicine, bone tissue engineering is developing dynamically. Scaffolds for bone healing might be used as solid, preformed scaffolding materials, or through the injection of a solidifiable precursor into the defective tissue.
Piotr Szczepańczyk, Natalia Złocista-Szewczyk, Kinga Pielichowska, Monika Szlachta, Jan Chłopek   +4 more
core   +1 more source

Biodegradable 3D‐Printable and Coatable Antifouling Composites for Marine Applications

Advanced Functional Materials, EarlyView.
Marine biofouling damages submerged surfaces and raises greenhouse gas emissions. Biodegradable antifouling biocomposites were developed by hot‐mixing beeswax, Tween 80, and calcium stearate or stearic acid. Adjusting the component ratio enables processing via hot‐pressing, 3D‐printing, or dip‐coating.
Gabriele Corigliano, Lorenzo Ravelli, Martina Nardi, Ruowen Tu, Elena Bellini, Valerio Isa, Carlo Filippeschi, Roberta Finazzi, Luca Ceseracciu, Niloofar Paknezhad, Vincenzo Scribano, Paolo Galli, Silvia Lavorano, Simone Montano, Barbara Mazzolai, Marco Contardi, Pietro Cataldi, Athanassia Athanassiou   +17 more
wiley   +1 more source

Unique Role of Microstructure of a Bioimplant Zinc Alloy and Protein Content of Simulated Body Fluid in Corrosion and Fracture

Advanced Functional Materials, EarlyView.
BSA addition to physiological solutions enhances resistance of a Zn alloy to stress corrosion cracking (SCC) but reduces its corrosion resistance. Extended surface characterization explains the contrasting influences on corrosion and SCC. Unexpectedly, the alloy suffers transgranular SCC (TGSCC), despite extensive grain boundary precipitation. Thorough
RK Singh Raman, Syed Hussain Wajahat, Saad Al‐Saadi, Robin E. Schäublin, Peng Zeng, Solomon Ansah, Jixing Lin, Xian Tong, Cuie Wen, Jörg F. Löffler   +9 more
wiley   +1 more source

Analog Classification of Human Hand Gestures Exploiting Dendritic Integration With an Organic Artificial Soma

Advanced Functional Materials, EarlyView.
An organic neuromorphic architecture for the classification of human motor behavior is presented and validated. It performs somatic integration by linearly combining the activity from three muscles. An investigation of synaptic weights is presented and discussed in relationship with the classification performance.
Ilenia Sergi, Federico Rondelli, Francesco Torricelli, Federica Velluto, Anna De Salvo, Michele Di Lauro, Luciano Fadiga, Fabio Biscarini   +7 more
wiley   +1 more source

Bistable Isochoric Chiral Metamaterials with Reprogrammable Multiaxial Responses

Advanced Functional Materials, EarlyView.
An isochoric bistable rotational unit cell enables in situ modification of internal contact conditions post‐fabrication, without altering the global envelope dimensions of the surrounding architecture. By selectively switching between open and closed states, the tessellated chiral metamaterial can reprogram its volumetric response, including bulk ...
Shujia Chen, Lei Wu, Jingran Liu, Damiano Pasini   +3 more
wiley   +1 more source

Determining the impact of common microplastic extraction methods from soil matrices on the biodegradable polymers polylactic acid and polyhydroxybutyrate

Microplastics and Nanoplastics
The use of conventional non-biodegradable plastic polymers in agricultural applications has raised concerns regarding their degradation into micro- and nano-plastics and accumulation in soils.
Grace Davies, Sarmite Kernchen, Martin G. J. Löder, Louisa Brenninkmeijer, Christian Laforsch, Stefan Krause, Iseult Lynch   +6 more
doaj   +1 more source

The role of biodegradable plastics in a sustainable economy: Progress and challenges

Cleaner Engineering and Technology
The widespread use of plastics has resulted in significant environmental challenges, including pollution, landfill accumulation, and harm to ecosystems and human health.
Tina Kegl, Yee Van Fan, Lidija Čuček
doaj   +1 more source

Preparations and Properties of Ionic Liquid-Assisted Electrospun Biodegradable Polymer Fibers

, 2022
Enhanced awareness of the environment and environmental conservation has inspired researchers to search for replacements for the use of volatile organic compounds in the processing of polymers.
Ahmad Adlie Shamsuri, Abdan, Khalina, Siti Nurul Ain Md. Jamil, Khalina Abdan, Shamsuri, Ahmad Adlie, Md. Jamil, Siti Nurul Ain   +5 more
core   +1 more source

In Situ Interfacial Assembly of Dynamic Semi‐Interpenetrating Biopolymer Networks for Robust and Mechanically Adaptive Droplet Interfaces

Advanced Functional Materials, EarlyView.
A dynamic interfacial semi‐interpenetrating polymer network is constructed by sequential assembly of β‐sheet‐rich SF and CS‐RL. The SF framework provides mechanical strength, while dynamically associated CS‐RL enables local rearrangement, allowing droplets to rapidly reconfigure without loss of interfacial integrity.
Yaping Zhang, Yujie Liu, Yikai Xu, Xunda Feng, Ling Zhang, Hongbo Zeng, Hao Liu, Xiaohui Mao   +7 more
wiley   +1 more source