Results 31 to 40 of about 381,581 (301)

PLGA Nanofiber/PDMS Microporous Composite Membrane-Sandwiched Microchip for Drug Testing

open access: yesMicromachines, 2020
Lung-on-a-chip devices could provide new strategies for a biomimetic lung cell microenvironment and construction of lung disease models in vitro, and are expected to greatly promote the development of drug evaluation, toxicological detection, and disease
Wei Li   +6 more
doaj   +1 more source

Activating membranes

open access: yes, 2014
We present a general dynamical theory of a membrane coupled to an actin cortex containing polymerizing filaments with active stresses and currents, and demonstrate that active membrane dynamics [Phys. Rev.
Maitra, Ananyo   +3 more
core   +2 more sources

Novel Bilayer Composite Membrane for Passive Direct Methanol Fuel Cells with Pure Methanol

open access: yesInternational Journal of Electrochemical Science, 2013
The bilayer composite membrane composed of the sulfonated graphene oxide (SGO)/Nafion and sulfonated activated carbon (SAC)/Nafion composite membrane is designed and prepared by repeatedly bar-coating.
Li-Duan Tsai   +6 more
doaj   +1 more source

Adsorptive Removal of Congo Red by PVDF/MIL⁃53(Fe) Composite Membrane from Aqueous Solution

open access: yesLiaoning Shiyou Huagong Daxue xuebao
Metal⁃organic framework material MIL⁃53(Fe) was added as a modifier to polyvinylidene fluoride (PVDF) casting solution, and PVDF/MIL⁃53(Fe) composite membrane was fabricated. The composite membranes were characterized by a series of tests, including XRD,
Hai XING, Xiaohua WANG, Ningning LIU
doaj   +1 more source

The influence of polyvinyl alcohol concentration toward conductivity and permeability of chitosan - montmorillonite composite membrane [PDF]

open access: yesJournal of the Serbian Chemical Society
The composite membrane is synthesized using chitosan as a matrix membrane with montmorillonite (MMT) as a filler and modified using polyvinyl alcohol (PVA).
Rahmatulloh Arief   +2 more
doaj   +1 more source

Preparation and Characterization of a Cross-linked Matrimid/Polyvinylidene Fluoride Composite Membrane for H2/N2 Separation [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2017
A double layer composite membrane was fabricated by matrimid 5218 as a selective layer on polyvinylidene fluoride (PVDF), a porous asymmetric membrane, as a sublayer.
Mahmood Esmaeilipur   +2 more
doaj   +1 more source

Flexible composite membrane Patent [PDF]

open access: yes, 1970
Flexible composite membrane structure impervious to extremely reactive chemicals in rocket ...
Taylor, L. L., Vango, S. P.
core   +1 more source

Failure assessment of lightly reinforced floor slabs. I: Experimental investigation [PDF]

open access: yes, 2011
This paper is concerned with the ultimate behavior of lightly reinforced concrete floor slabs under extreme loading conditions. Particular emphasis is given to examining the failure conditions of idealized composite slabs which become lightly reinforced ...
Cashell, KA   +2 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Axial and lateral stiffness of spherical self-balancing fiber reinforced rubber pipes under internal pressure

open access: yesScience and Engineering of Composite Materials, 2021
Fiber reinforced rubber pipes are widely used to transport fluid at locations requiring flexible connections in pipeline systems. The spherical self-balancing fiber reinforced rubber pipes with low stiffness are drawing attention because of their ...
Xu Guo-min, Shuai Chang-geng
doaj   +1 more source

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