Results 71 to 80 of about 342,484 (322)

Bio‐Friendly Artificial Muscles Based on Carbon Nanotube Yarns and Eutectogel Derivatives

open access: yesAdvanced Functional Materials, EarlyView.
Solid‐state artificial muscles based on coiled commercial carbon nanotube yarns coated with eutectogel derivatives exhibit unipolar actuation through selective ion intercalation. Combining polyanionic and polycationic gels enables enhanced contractile stroke and high energy density.
Gabriela Ananieva   +6 more
wiley   +1 more source

Mechanical and volumetric expansion of expandable polystyrene subjected to fuel material for self-sealing composite coating applications

open access: yesHybrid Advances
Expandable polystyrene is widely used in several industries as a sealing medium due to its desirable mechanical properties, durability, and high-volume expansion.
Md Shaheen Mahmood   +5 more
doaj   +1 more source

INFLUENCE OF CHEMICAL POLYMER ADDITIVE ON THE PHYSICAL AND MECHANICAL PROPERTIES OF EXPANDED POLYSTYRENE CONCRETE

open access: yesActa Polytechnica, 2020
This research investigated the effect of Renolith chemical polymer additive (RCPA) on the properties of expanded polystyrene (ESP) concrete. Renolith chemical additive is a polymer-based product in a liquid form made up of latex and cellulose ...
John Wasiu, Daoud Mohammad Baba
doaj   +1 more source

To Control Bead Size Distribution in Suspension Polymerization [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2008
Suspension polymerization processes are significantly important in polymer bead formation. One of the important factors for bead size control in these processes is variation in surface tension. In this research, the prediction of optimum concentration of
M. Saeidi   +3 more
doaj   +1 more source

Magnetophoresis of Nonmagnetic, Submicrometer Particles in Magnetic Fluids [PDF]

open access: yes, 2004
We studied the migration of nonmagnetic, submicrometer polystyrene beads submerged in a magnetic fluid in the presence of nonuniform magnetic fields as a potential method for size-based separation of submicrometer, nonmagnetic species.
Fateen, Seif   +3 more
core  

Low-cost optical manipulation using hanging droplets of PDMS [PDF]

open access: yes, 2015
We propose and demonstrate a low-cost optical micromanipulation system that makes use of simple microfrabricated components coupled to a smartphone camera for imaging. Layering hanging droplets of polydimethylsiloxane (PDMS) on microscope coverslips, and
Ashkin   +20 more
core   +3 more sources

Designing Thermally Compatible Template‐Coating Pairs Toward Dimensionally Stable 3D Porous Carbons with Tunable Density

open access: yesAdvanced Functional Materials, EarlyView.
3D porous carbons with tunable density are crucial for energy storage, separations, and load‐bearing applications; however, their fabrication is often constrained by shrinkage during pyrolysis. This study optimizes and demonstrates the versatility of a template–coating pair strategy, producing materials that largely retain their shape and hierarchical ...
Adarsh Suresh   +7 more
wiley   +1 more source

Holographic aberration correction: optimising the stiffness of an optical trap deep in the sample [PDF]

open access: yes, 2011
We investigate the effects of 1st order spherical aberration and defocus upon the stiffness of an optical trap tens of μm into the sample. We control both these aberrations with a spatial light modulator. The key to maintain optimum trap stiffness over a
Bowman   +22 more
core   +1 more source

Multifunctional Microstructured Surfaces by Microcontact Printing of Reactive Microgels

open access: yesAdvanced Functional Materials, EarlyView.
Reactive poly(N‐vinylcaprolactam‐co‐glycidyl methacrylate) microgels are used as functional inks to create surface‐grafted arrays on glass via microcontact printing. The patterns (10–50 µm widths and spacings) enable stable binding and post‐functionalization with dyes and peptides.
Inga Litzen   +4 more
wiley   +1 more source

Human Blood Cell Sensing with Platinum Black Electroplated Impedance Sensor [PDF]

open access: yes, 2007
AC impedance sensing is an important method for biological cell analysis in flow cytometry. For micro impedance cell sensors, downsizing electrodes increases the double layer impedance of the metal-electrolyte interface, thus leaves no sensing zone in ...
Nandra, Mandheerej S.   +2 more
core   +1 more source

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