Results 41 to 50 of about 57,907 (324)

Effect of the fibre length on the mechanical anisotropy of glass fibre–reinforced polymer composites printed by Multi Jet Fusion

Virtual and Physical Prototyping, 2022
Mechanical anisotropy greatly influences the applications of materials printed by additive manufacturing techniques such as Multi Jet Fusion (MJF) and selective laser sintering.
Xiaojiang Liu, Wei Shian Tey, Pengfei Tan, Kah Kit Leong, Jiayao Chen, Yujia Tian, Adrian Ong, Lihua Zhao, Kun Zhou   +8 more
doaj   +1 more source

Improved nuclear localization of DNA-binding polyamides [PDF]

, 2006
Regulation of endogenous genes by DNA-binding polyamides requires effective nuclear localization. Previous work employing confocal microscopy to study uptake of fluorophore-labeled polyamides has demonstrated the difficulty of predicting a priori the ...
Baird, Belitsky, Belitsky, Best, Bianchi, Claire S. Jacobs, Crowley, Dervan, Dervan, Dervan, Dickinson, Dudouet, Edelson, Foister, Gottesfeld, Juliano, Kaizerman, Kielkopf, Kong, Michelle E. Farkas, Nguyen-Hackley, Nicholas G. Nickols, Olenyuk, Peter B. Dervan, Suto, Trauger, Ueda, Vandyke, White, Wood, Wurtz   +30 more
core   +3 more sources

Unanticipated differences between α- and γ-diaminobutyric acid-linked hairpin polyamide-alkylator conjugates [PDF]

, 2006
Hairpin polyamide–chlorambucil conjugates containing an {alpha}-diaminobutyric acid ({alpha}-DABA) turn moiety are compared to their constitutional isomers containing the well-characterized {gamma}-DABA turn.
Chou, C. James, Dervan, Peter B., Farkas, Michelle E., Gottesfeld, Joel M., Tsai, Sherry M.   +4 more
core   +4 more sources

Optimization of selective laser sintering process conditions using stable sintering region approach

eXPRESS Polymer Letters, 2021
The optimization of process parameters represents one of the major drawbacks of selective laser sintering (SLS) technology since it is largely empirical and based on performing a series of trial-and-error builds.
F. Lupone, E. Padovano, M. Pietroluongo, S. Giudice, O. Ostrovskaya, C. Badini   +5 more
doaj   +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

Thin-Walled Part Properties in Powder Bed Fusion of Polymers—A Comparative Study on Temperature Development and Part Performance Depending on Part Thickness and Orientation

Journal of Manufacturing and Materials Processing, 2023
To develop new areas of application for laser-based powder bed fusion of polymers (PBF-LB/P), a deeper process understanding of the resulting mechanical properties, particularly for thin-walled and complex structures, is needed.
Andreas Jaksch, Simon Cholewa, Dietmar Drummer   +2 more
doaj   +1 more source

Effect of molecular weight and hydration on the tensile properties of polyamide 12

Results in Materials, 2020
Polyamide 12 (PA12) has found significant applications in the medical device industry, including its common use as an outer jacket layer in catheters. Like all polymers, PA12 can undergo degradation reactions, which compromise the mechanical and physical
Athanasios Touris, Alejandra Turcios, Eric Mintz, Syamala Rani Pulugurtha, Peter Thor, Matt Jolly, Ujwal Jalgaonkar   +6 more
doaj  

Effect of steam autoclaving on laser sintered polyamide 12 [PDF]

Rapid Prototyping Journal, 2020
Purpose The use of laser sintering (LS) in the medical sector has increased dramatically in recent years. With the move towards direct use of these parts in clinical applications, there is a greater need to understand the effects of standard processes on the part properties. The purpose of this study is to determine the effect that steam sterilisation
Wingham, J.R., Omran, M., Shepherd, J., Majewski, C.   +3 more
openaire   +2 more sources

Expanding the Repertoire of Natural Product-Inspired Ring Pairs for Molecular Recognition of DNA [PDF]

, 2011
A furan amino acid, inspired by the recently discovered proximicin natural products, was incorporated into the scaffold of a DNA-binding hairpin polyamide.
Arcamone F., Belitsky J. M., Best T. P., Boger D. L., Bremer R. E., Chenoweth D. M., Daniel A. Gubler, Dervan P. B., Dervan P. B., Doss R. M., Edelson B. S., Fiedler H. P., Jevgenij A. Raskatov, Jordan L. Meier, Katy A. Muzikar, Kopka M. L., Marques M. A., Matsuda H., Mrksich M., Muzikar K. A., Nickols N. G., Nickols N. G., Olenyuk B. Z., Pelton J. G., Peter B. Dervan, Pilch D. S., Renneberg D., Schneider K., Stover J. S., Wade W. S., White S., Wolter F. E., Woods C. R.   +32 more
core   +3 more sources

Nylon 46-polytetramethylene oxide segmented block copolymers [PDF]

, 1988
Block copolymers were synthesized from amine-terminated polytetramethylene oxide (PMTO) (Mw 800 and 1130) and polyamide 4,6 salt. First prepolymers were prepared at 200–210°C in the presence of a solvent (pyrrolidone).
Gaymans, R.J., Haan, J.L. de, Schwering, P.   +2 more
core   +8 more sources