نتایج جستجو برای: cnc

تعداد نتایج: 3526  

Polyethylene (PE) nanocomposites containing Cellulose Nano Crystal (CNC) were prepared via melt blending in a twin screw extruder. The evaluation of PE/CNC nanocomposites was studied for food packaging applications. The nanocomposites were investigated by thermal, mechanical analyses. Addition of CNC particle while having no effect on melting and crystallization temperature had intensive effect...

Journal: :تحقیقات مهندسی کشاورزی 0
نسرین جمشیدی کلجاهی دانشجوی کارشناسی ارشد دانشگاه تبریز، دانشکده کشاورزی بابک قنبرزاده دانشیار گروه علوم و صنایع غذایی دانشکده کشاورزی دانشگاه تبریز جلال دهقان نیا دانشیار گروه علوم و صنایع غذایی دانشکده کشاورزی دانشگاه تبریز علی اکبر انتظامی استاد گروه شیمی پلیمر دانشکده شیمی دانشگاه تبریز محمود صوتی خیابانی استادیار گروه علوم و صنایع غذایی دانشکده کشاورزی دانشگاه تبریز

the present study used a constant level of citric acid and polyvinyl alcohol and different amounts of nanocrystalline cellulose (cnc) and tio2 nanoparticles to improve the properties of starch film. the effect of different amounts of glycerol was also examined. the results of differential scanning colorimetry demonstrated that the addition of cnc increased the melting and glass transition tempe...

Journal: :Development 2007
Ariel Rinon Shlomi Lazar Heather Marshall Stine Büchmann-Møller Adi Neufeld Hadas Elhanany-Tamir Makoto M Taketo Lukas Sommer Robb Krumlauf Eldad Tzahor

In the vertebrate head, mesoderm cells fuse together to form a myofiber, which is attached to specific cranial neural crest (CNC)-derived skeletal elements in a highly coordinated manner. Although it has long been recognized that CNC plays a role in the formation of the head musculature, the precise molecular underpinnings of this process remain elusive. In the present study we explored the nat...

Journal: :Development 2003
Yoshihiro Ito Jae Yong Yeo Anna Chytil Jun Han Pablo Bringas Akira Nakajima Charles F Shuler Harold L Moses Yang Chai

Cleft palate and skull malformations represent some of the most frequent congenital birth defects in the human population. Previous studies have shown that TGFbeta signaling regulates the fate of the medial edge epithelium during palatal fusion and postnatal cranial suture closure during skull development. It is not understood, however, what the functional significance of TGFbeta signaling is i...

2015
Erin M. Sullivan Robert J. Moon Kyriaki Kalaitzidou

The focus of this study is to examine the effect of cellulose nanocrystals (CNC) on the properties of polylactic acid (PLA) films. The films are fabricated via melt compounding and melt fiber spinning followed by compression molding. Film fracture morphology, thermal properties, crystallization behavior, thermo-mechanical behavior, and mechanical behavior were determined as a function of CNC co...

2015
Krishnan A. Iyer Gregory T. Schueneman John M. Torkelson

Cellulose nanocrystals (CNCs), a class of renewable bionanomaterials with excellent mechanical properties, have gained major interest as filler for polymers. However, challenges associated with effective CNC dispersion have hindered the production of composites with desired property enhancements. Here, composites of polypropylene (PP) and low density polyethylene (LDPE) with 5e10 wt% unmodified...

Journal: :Genetics 1976
M McDermit M Pierce D Staley M Shimaji R Shaw D L Wulff

A lambda cnc mutation masks the phenotype of the lambda cin-1 mutation. Eleven cnc mutations have been found. All appear to be identical and all map at a site just to the right of the cin-1 site. It is probable that cin-1 and cnc affect adjacent, or almost adjacent nucleotide pairs. Neither the cin-1 nor the cnc mutation involves large additions or deletions of genetic material.

2013
Jian-Lin Huang Derek G Gray Chao-Jun Li

We decorated HS-functionalized cellulose nanocrystallite (CNC) films with monodisperse Au nanoparticles (AuNPs) to form a novel nanocomposite catalyst AuNPs@HS-CNC. The uniform, fine AuNPs were made by the reduction of HAuCl4 solution with thiol (HS-) group-functionalized CNC films. The AuNPs@HS-CNC nanocomposites were examined by X-ray photoelectron spectroscopy (XPS), TEM, ATR-IR and solid-st...

2013
Shanhong Xu Natalie Girouard Gregory Schueneman Meisha L. Shofner J. Carson Meredith

Cellulose nanocrystals (CNCs) are reinforcing fillers of emerging interest for polymers due to their high modulus and potential for sustainable production. In this study, CNC-based composites with a waterborne epoxy resin matrix were prepared and characterized to determine morphology, water content, and thermal and mechanical properties. While some CNC aggregation was observed, the glass transi...

Journal: :Development 2000
B Kanzler R K Foreman P A Labosky M Mallo

BMP signaling is essential for a wide variety of developmental processes. To evaluate the role of Bmp2/4 in cranial neural crest (CNC) formation or differentiation after its migration into the branchial arches, we used Xnoggin to block their activities in specific areas of the CNC in transgenic mice. This resulted in depletion of CNC cells from the targeted areas. As a consequence, the branchia...

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