Results 51 to 60 of about 65,206 (305)

Effects of build positions on the thermal history, crystallization, and mechanical properties of polyamide 12 parts printed by Multi Jet Fusion

Virtual and Physical Prototyping, 2022
Multi Jet Fusion (MJF) has gradually been utilised for the commercial fabrication of final products. In particular, the mechanical properties of MJF-printed polyamide 12 (MJF PA12) parts have been widely investigated by manipulating the process ...
Kaijuan Chen, Zhi Hui Koh, Kim Quy Le, How Wei Benjamin Teo, Han Zheng, Jun Zeng, Kun Zhou, Hejun Du   +7 more
doaj   +1 more source

Molecular dynamics simulations of the interactions of potential foulant molecules and a reverse osmosis membrane [PDF]

, 2011
Reverse osmosis (RO) is increasingly one of the most common technologies for desalination worldwide. However, fouling of the membranes used in the RO process remains one of the main challenges. In order to better understand the molecular basis of fouling
Gale, Julian D., Hughes, Zak E.
core   +1 more source

Biocompatible but Antibacterial Mechanism of Graphene Oxide for Sustainable Antibiotics

Advanced Functional Materials, EarlyView.
Graphene oxide (GO) exhibits selective antibacterial activity through specific interactions between its oxygen functional groups and bacterial membrane phospholipid POPG, causing membrane destabilization while maintaining biocompatibility. Model membrane studies and infected wound models in mice and pigs demonstrate effective bacterial suppression and ...
Sujin Cha, Ju Yeon Chung, Seungju Yang, Seung Cheol Lee, Chan Woo Lee, Colin Wing‐Lok Cheng, Jun Beom Kim, Nam Jun Kim, Ayoung Park, Heewon Choi, Junpyo Sinn, Ralph Weissleder, Nicholas A. Kotov, Myungeun Seo, Hyun Jung Chung, Sang Ouk Kim   +15 more
wiley   +1 more source

Applicability of polyamide 12 intramedullary locked rods in the stabilization of induced humeral fracture in cockerels (white plymouth rock) - in vivo study

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
The aim of this study was to evaluate the use of polyamide 12 intramedullary rods in osteotomized humerus in cockerels (White Plymouth Rock) and analyze, by radiography and histopathology, bone consolidation and the formation of bone callus.
E.P. Cherobini, L.L. Carvalho, D.O. Garcia, F.G.G. Dias, C.A.S. Malta, A.C. Facin, E. Mattos-Junior, G.M. Magalhães, L.G.G.G. Dias   +8 more
doaj   +1 more source

Structural and Chemical Engineering of Sub‐Nanochannel Membranes Toward Ion Selectivity

Advanced Functional Materials, EarlyView.
This review summarizes recent advances in structural and chemical engineering of sub‐nanochannels for ion selectivity. We first introduce fundamental ion transport mechanisms within sub‐nanochannels, followed by strategies to tune pore size, geometry, and surface functionalities, categorized into charge‐based, ion‐recognition, hydrophilic bonding, and ...
Yuyu Su, Huacheng Zhang, Tamar L. Greaves, Qi Han, Weiwei Lei, Dan Liu   +5 more
wiley   +1 more source

Influence of the Origin of Polyamide 12 Powder on the Laser Sintering Process and Laser Sintered Parts

Applied Sciences, 2017
Different features of polymer powders influence the process of laser sintering (LS) and the properties of LS-parts to a great extent. This study investigates important aspects of the “powder/process/part”-property relationships by comparing two polyamide
Manfred Schmid, Rob Kleijnen, Marc Vetterli, Konrad Wegener   +3 more
doaj   +1 more source

Preparation of iron oxide–coated aramid fibres for improving the mechanical performance and flame retardancy of multi jet fusion–printed polyamide 12 composites

Virtual and Physical Prototyping, 2023
Multi jet fusion (MJF), a powder-based additive manufacturing technology, is suitable for fabricating fibre-reinforced polymer composites. However, the types of reinforcement fibres applied in MJF are limited due to the incompatibility between the fibres
Yanbei Hou, Ming Gao, Jiayao Chen, Wei Shian Tey, Mei Chen, Han Zheng, Boyuan Li, Lihua Zhao, Kun Zhou   +8 more
doaj   +1 more source

Oligomerization Route to Py-Im Polyamide Macrocycles [PDF]

, 2009
Cyclic eight-ring pyrrole−imidazole polyamides are sequence-specific DNA-binding small molecules that are cell permeable and can regulate endogenous gene expression.
Chenoweth, David M., Dervan, Peter B., Harki, Daniel A.   +2 more
core   +2 more sources

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

Advanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi, Naseeh Backer Kannanthodi, Alice Nicole Casling, Babar Ali, Samira Lakouraj Mansouri, Alessandro Giuseppe D'aloia, Hossein Cheraghi Bidsorkhi, Maria Sabrina Sarto   +7 more
wiley   +1 more source

The influence of fibre length, diameter and concentration on the strength and strain to failure of glass fibre-reinforced polyamide 6,6 [PDF]

, 2008
Results of an investigation of the mechanical performance of injection moulded long glass fibre-reinforced polyamide 6,6 composites are presented. The glass fibre content in these composites was varied over the range 10-50% by weight using fibres with ...
Akay, Bader, Bailey, Belbin, Bowyer, Carlson, Cox, Fu, Guyot, Hassan, Horst, J.L. Thomason, Kelly, Laura, Sato, Sato, Thomason, Thomason, Thomason, Thomason, Thomason, Thomason, Thomason, Thomason, Thomason, Toll, Wisnom   +26 more
core   +1 more source