نتایج جستجو برای: polyethylene films

تعداد نتایج: 121352  

Journal: :ACS nano 2010
Qiyuan He Herry Gunadi Sudibya Zongyou Yin Shixin Wu Hai Li Freddy Boey Wei Huang Peng Chen Hua Zhang

Recently, the field-effect transistors (FETs) with graphene as the conducting channels have been used as a promising chemical and biological sensors. However, the lack of low cost and reliable and large-scale preparation of graphene films limits their applications. In this contribution, we report the fabrication of centimeter-long, ultrathin (1-3 nm), and electrically continuous micropatterns o...

Journal: :Macromolecular Materials and Engineering 2021

Films for agricultural applications, such as greenhouses films or mulching are generally made of polyolefins linear low-density polyethylene (LLDPE) polyethylene. However, the use biodegradable and/or compostable polymers is increasing, which enjoy additional advantage that they can be left on site since a fine life would gradually assimilated to underlying soil. Nevertheless, polymeric often d...

Journal: :مهندسی بیوسیستم ایران 0
پریسا عبدالستاری دانشگاه تبریز سیدهادی پیغمبر دوست دانشکده کشاورزی، دانشگاه تبریز آیناز مولایی دانشکده کشاورزی، دانشگاه تبریز سید جمال الدین پیغمبردوست دانشکده مهندسی شیمی و نفت، دانشگاه تبریز میریوسف هاشمی دانشکده فنی و مهندسی، دانشگاه شهید مدنی آذربایجان

lighvan cheese is one of the most popular iranian cheeses that always faces to microbial problems due to traditional ways of production. in this study the effect of two types of low density polyethylene-nanocamposite films contains of ag, cuo and zno nanoparticles with different percentage increasing the shelf-life of chesse in 4̊c was investigated. microbial tests of the packed cheeses were don...

2010
Anuj R. Madaria Akshay Kumar Fumiaki N. Ishikawa Chongwu Zhou

Silver nanowire films are promising alternatives to tin-doped indium oxide (ITO) films as transparent conductive electrodes. In this paper, we report the use of vacuum filtration and a polydimethylsiloxane (PDMS)-assisted transfer printing technique to fabricate silver nanowire films on both rigid and flexible substrates, bringing advantages such as the capability of patterned transfer, the bes...

2018
Toshihiko MATSUO Tetsuya UCHIDA Koichiro YAMASHITA Shigiko TAKEI Daisuke IDO Mamoru TANAKA Masao OGUCHI Toshinori FURUKAWA

Okayama University-type retinal prosthesis (OURePTM) is a photoelectric dye-coupled polyethylene film which generates electric potential in response to light and stimulates nearby neurons. This study aims to test surgical feasibility for subretinal film implantation and to examine functional durability of films in subretinal space. Dye-coupled films were implanted subretinally by vitrectomy in ...

Journal: :Soft matter 2014
Qian Huang Ilsun Yoon Josh Villanueva Kanguk Kim Donald J Sirbuly

A clear understanding of the mechanical behavior of nanometer thick films on nanostructures, as well as developing versatile approaches to characterize their mechanical properties, are of great importance and may serve as the foundation for understanding and controlling molecular interactions at the interface of nanostructures. Here we report on the synthesis of thin, compressible polyethylene ...

زمانی, ذبیح اله, محبی, شیدا , مستوفی , یونس,

In this research, the effects of packaging with two types of polymeric films (Low density polyethylene and polypropylene) and three gas compositions (Air, 20% CO₂ + 60% O₂ and 20% CO₂ + 5% O₂) on quantitative and qualitative attributes and storage life of cornelian cherry fruits were evaluated. Also some fruits in containers without cap were considered as control. After treatment, the fruits w...

Journal: :international journal of nano dimension 0
f. oshani department of engineering, islamic azad university, north branch, tehran, iran. s. rasouli department of nanomaterials and nanotechnology, institute for color science and technology. r. marandi department of engineering, islamic azad university, north branch, tehran, iran. m. keramati farhoud department of nanomaterials and nanotechnology, institute for color science and technology.

in this paper, a modified sol-gel method using peroxotitanic acid sol (pta) was applied for the preparation of tio2 nanostructured thin films on glass plates. the peroxotitanic acid sol was synthesized using titanium isopropoxide, isopropylalchol, h2o and hydrogen peroxide. tio2 films were then calcined at 500oc and characterized by x-ray diffraction (xrd) and scanning electron microscopy (sem)...

2008
Harold G. Craighead Barbara Baird Christopher Ober Paul Zhu Jose M. Moran-Mirabal Rong Dong Alexis J. Torres

Zero-mode-waveguides (ZMWs) are subwavelength apertures on metal films. They are fabricated at the CNF with a lift-off process using electron-beam lithography (Figure 1). We further process these structures for biological studies by topping the surface with polyethylene glycol, and selectively coating the inside of the ZMWs with 2,4-dinitrophenyl (DNP) functionalized polymer. Using fluorescence...

2014
Rejane Andrade Batista Narendra Narain Nilda de Fátima Ferreira Soares Paula Judith Pérez Espitia Eber Antonio Alves Medeiros Patrícia Nogueira Matos

Methodology Active packaging material was low density polyethylene (LDPE) film incorporated with Tinuvin 326(UV absorber) and iron powder in different concentrations (0-0.5% and 0-15% w/w, respectively). Eleven treatments were performed according to the central composite design (CCD) in order to evaluate changes in mechanical, physical and barrier properties of films. Moreover, the influence of...

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