Results 111 to 120 of about 617,783 (341)

Multiphoton‐Printed Microrobotic Arrays Powered by Discrete, Monolithically Integrated Hydrogel Actuators

open access: yesAdvanced Robotics Research, EarlyView.
Functional surfaces are investigated as a foundation for reconfigurable microscale systems with sensing and actuation capabilities. Advances in additive manufacturing enable our development of planar arrays of hybrid‐material, compliant microdevices that convert environmental stimuli into programmed motion and visual responses.
Sandra Edward   +5 more
wiley   +1 more source

Assessment of flexural strength of two self-curing acrylic resins containing pigment

open access: yesBrazilian Journal of Oral Sciences, 2015
Aim: To assess the flexural strength of orthodontic acrylic resins from two different manufacturers (VIPI, OrtoCril versus Clássico, OrtoClas) by comparing pigmented resins to colorless ones. Methods: Resins of blue, yellow and green colors were studied.
Vicente Telles   +3 more
doaj   +1 more source

3D Printed Soft Robotic Hand [PDF]

open access: yes, 2018
Soft robotics is an emerging industry, largely dominated by companies which hand mold their actuators. Our team set out to design an entirely 3D printed soft robotic hand, powered by a pneumatic control system which will prove both the capabilities of ...
Kisner, Zack   +2 more
core   +1 more source

Miniaturized Magnetic Tip Design for Endoluminal Vine Robot Navigation

open access: yesAdvanced Robotics Research, EarlyView.
A magnetic tip mount is designed for a miniaturized 7 mm soft‐growing vine robot to enable wireless magnetic steering and onboard imaging, while preserving a 3 mm working channel. The internal–external ring magnets design balances magnetic attachment with low eversion pressure. Experiments demonstrate ±90° steering, 34 mm bending radius, and successful
Andrea Yanez Trujillo   +4 more
wiley   +1 more source

On the Origins of Toughness in Corymbia calophylla (Marri Tree) Nuts

open access: yesAdvanced Science, EarlyView.
We uncover the natural toughening mechanisms of the marri nut, including fiber pullout, crack deflection, and a viscoelastic matrix, which enable exceptional energy absorption and ductility comparable to Teflon, with an elastic modulus similar to acrylic.
Wegood M. Awad   +7 more
wiley   +1 more source

New Phosphated Poly(methyl Methacrylate) Polymers for the Prevention of Denture-induced Microbial Infection: an In Vitro Study [PDF]

open access: yes, 2011
Purpose: Poly(methyl methacrylate) (PMMA) has been widely used as a denture-base acrylic resin due to its excellent physical and mechanical properties.
Dentino, Andrew R., Raj, Antony
core   +3 more sources

Biofilm Formation in Denture Base Acrylic Resins and Disinfection Method Using Microwave

open access: yes, 2014
The purpose of this study was to verify the effect of the microwave disinfection in denture base acrylic resins with Candida sp biofilm formation. Samples (n=90) of each resin were submitted to ethylene oxide sterilization, and then infected by inoculum ...
A. Dantas   +5 more
semanticscholar   +1 more source

Targeting the PDK1/c‐Myc/SOX10 Signaling in Oligodendrocytes Alleviates Neuropathic Pain

open access: yesAdvanced Science, EarlyView.
This work reveals that oligodendrocyte homeostasis, mediated by PDK1, is a critical determinant of neuropathic pain (NPP) pathogenesis. Disruption of PDK1 in oligodendrocytes impairs SOX10‐dependent myelination programs through c‐Myc accumulation, leading to disrupted myelination and the pathophysiology of NPP.
Pingping Qiao   +7 more
wiley   +1 more source

Marginal adaptation of provisional crowns made of acrylic and bisacrylic resins using different impression materials

open access: yesBrazilian Journal of Oral Sciences, 2019
Aim: To evaluate the marginal adaptation of provisional crowns made of acrylic and bisacrylic resins using different impression materials. Methods: a metal die and a matrix applied through a direct technique were used to fabricate the specimens.
Camilla Lopes Cerqueira   +3 more
doaj   +1 more source

Estrogenic chemicals often leach from BPA-free plastic products that are replacements for BPA-containing polycarbonate products [PDF]

open access: yes, 2014
Background: Xenobiotic chemicals with estrogenic activity (EA), such as bisphenol A (BPA), have been reported to have potential adverse health effects in mammals, including humans, especially in fetal and infant stages.
Bittner, George D.   +2 more
core   +2 more sources

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