نتایج جستجو برای: cast film extrusion

تعداد نتایج: 126889  

2012
Monika Goikoetxea Yuri Reyes Roque J. Minari María Paulis María J. Barandiaran Joseph L. Keddie José M. Asua

Films cast from multiphase polymer particles have the potential to combine the properties of their components synergistically. The properties of the film depend on the hybrid polymer architecture and the film morphology. However, how the polymer microstructure and particle morphology are transformed during film formation to determine the film morphology is not well understood. Here, using water...

The current methods for treatment of cancers are inadequate and more specific methods such as gene therapy are in progress. Among different vehicles, cationic liposomes are frequently used for delivery of genetic material. This investigation aims to prepare and optimize DOTAP cationic liposomes containing an antisense oligonuclotide (AsODN) against protein kinase C alpha in non-small cells lung...

Journal: :ACS nano 2008
Xiaohua Zhang Brian C Berry Kevin G Yager Sangcheol Kim Ronald L Jones Sushil Satija Deanna L Pickel Jack F Douglas Alamgir Karim

We investigate the effect of the ordering temperature (T) and film thickness (h(f)) on the surface morphology of flow-coated block copolymer (BCP) films of asymmetric poly(styrene-block-methyl methacrylate). Morphology transitions observed on the ordered film surface by atomic force microscopy (AFM) are associated with a perpendicular to a parallel cylinder BCP microphase orientation transition...

Journal: :ACS Sustainable Chemistry & Engineering 2023

Poly(lactic acid) (PLA) is a sustainable, bio-based, and industrially compostable polymer with recalcitrant abiotic degradation phase, limiting its organic recovery to well-managed industrial composting facilities. We present methodology fully biodegrade PLA in home settings. Thermoplastic starch (TPS) were reactively blended by adding chemical modifier peroxide radicals obtain PLA-g-TPS blend ...

Journal: :Chemical communications 2010
Takashi Nishio Kenichi Niikura Yasutaka Matsuo Kuniharu Ijiro

Fluorinated tetraethylene glycol-stabilized Au nanoparticles (FTEG-AuNPs) were well-dispersed in general polar organic solvents, such as methanol (MeOH) and THF. The cast film of FTEG-AuNPs on a TEM grid and a glass substrate was found to form a highly ordered 3D-superlattice assembly, whereas tetraethylene glycol-stabilized AuNPs (TEG-AuNPs) provide an amorphous AuNP aggregation. These data in...

Journal: :Chemical Engineering Journal 2023

• Raw lignin was modified through a green and scalable reactive extrusion design. Lignin/poly(butylene adipate-co-terephthalate) biomaterials were melt processed up to 90 wt% bio-content. Tough film blown shopping bags produced. Mechanical recycling composting verified as end-of-life options. Reactive design industrially scaled-up in conventional twin screw extruder.

Background and Objectives: Antimicrobial active packaging with metallic nanoparticles is used as antimicrobial agent in the packaging of food. This study considers the coliform retarding ability of antimicrobial packaging in ultra-filtrated (UF) cheese. Materials and Methods: Plastic films based on low-density polyethylene containing organoclay (cloisite 30B) and different percentages of Ag an...

Journal: :BioTechniques 1996
V Burland F P Curtis N Kusukawa

Accurate resolution of PCR products in the range of 15-40 kb may be obtained in agarose gels without pulsed field electrophoresis. A gel of 0.3% SeaKem Gold agarose cast on GelBond support film provides good resolution and sufficient get strength to reliably allow staining and photography. This paper describes a test system for Long PCR and demonstrates analysis of the PCR products on a gel run...

Journal: :Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 2012
C K M Ng E Y W Chong V A L Roy K M C Cheung K W K Yeung K N Yu

We proposed a simple method to fabricate micropillar substrates. Polyallyldiglycol carbonate (PADC) films were irradiated by alpha particles and then chemically etched to form a cast with micron-scale spherical pores. A polydimethylsiloxane (PDMS) replica of this PADC film gave a micropillar substrate with micron-scale spherical pillars. HeLa cells cultured on such a micropillar substrate had s...

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