To dry plants by these methods, a laboratory‐scale infrared‐assisted refractance window dryer was used (Department of Food Process Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran—Schematic IRD, Figure 1a ). In this dryer, a Mylar film (DuPont) was placed on a hot water source at 90°C, and plant samples were spread on the surface of the Mylar film. The infrared lamp (NIR, Noor Lamp Company) was another main component of the dryer. In the RWD method, the IR lamp of the dryer was turned off, while in the combination method (RWD+ IRD), the IR lamp was turned on. For regulation of IR's power, a variable device (LS‐1P‐3K‐VA, Gold star) was used and RWD+ IRD 200 and 300 W were considered as combined treatments.
Mylar film
Manufactured by DuPont
Sourced in Hong Kong, United States
Mylar film is a versatile and durable polyester-based material produced by DuPont. It is known for its high tensile strength, dimensional stability, and heat-resistant properties. Mylar film can be used in a variety of applications, including electrical insulation, packaging, and protective coatings.
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Lab products found in correlation
6 protocols using mylar film
1
Infrared-Assisted Refractance Window Drying
2
Alpha-Particle Irradiation Setup for Biocompatible Substrate
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The setup for alpha-particle irradiation largely followed the design by Yum et al. [56 (link)]. Briefly, a 3.5 μm thick biocompatible Mylar film (Dupont, Hong Kong, China), which was glued to the bottom of a Petri dish having a 35 mm diameter hole, was used as the supporting substrate during the alpha-particle irradiation. In the present study, an 241Am alpha-particle source with alpha-particle energy of 5.49 MeV under vacuum and an activity of 4.26 kBq was employed.
3
Fabrication of Mylar-CNT Composite Films
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We started with a thin sheet of commercially available mylar film with a nominal thickness of 0.5 μm (Dupont). Using a 1-cm2 sample and a precision scale (PerkinElmer AD4 model), we measured the areal density to be ~0.7 g/m2, which agrees with the theoretical value expected from the nominal density of mylar of 1.39 kg/m3. To deposit the CNT layer, we used a 0.2 weight % water-based single-wall CNT with 1- to 2-nm diameter and 5- to 30-μm length (NanoAmor) and diluted it with deionized (DI) water by a volumetric ratio of 3:1 (DI Water/CNT). We then stretched a sheet of this mylar thin film of a Si wafer and put it on a hot plate at 50°C. By dropcasting the CNT solution on the sheet and letting the water evaporate, we created a CNT layer on the mylar sheet, then peeled the mylar sheet off of the Si substrate, and cut circular samples of the desired diameter using a razor blade. Weight measurements of the CNT-covered samples showed their areal density to be ~1 g/m2.
4
Stable Daughter Cells from Alpha and Gamma Irradiation
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Exponentially growing cells were exposed to γ-rays and α particles, respectively. Gamma-rays (0.23keV/μm) were generated from a 137Cs irradiator (Gammacell-40, Nordion International Inc., Kanata, Ontario, Canada) with a dose rate of 0.75Gy/min [48 (link)]. A 241Am α-particle plate source (Atom High Tech Co., Ltd., Beijing, China) was applied for α-irradiation. Because of the limited range of α-particles, cells were seeded on a Mylar-film based dish that was pre-coated with 150–300 kD poly-lysine (Sigma-Aldrich) and maintained overnight to allow cell attachment. After penetrating through three layers of 2.5μm thickness Mylar-film (DuPont, Wilmington, DE, USA), the energy of α-particle was 4.4 MeV with a LET of 100 keV/μm at the cell layer and the dose rate of α-irradiation was 0.244 Gy/min [49 (link)]. Cells were irradiated with 1 Gy α-particles or 6 Gy γ-rays. Because many cells were killed after 1 Gy of α-particles or 6 Gy of γ-rays irradiation, to obtain stable daughter cells (DCs), the irradiated cells were passaged every 3 days and cultured for 2 or 3 weeks until no suspension of dead cells in medium. Then, these survived cells after 2 or 3 weeks of priming irradiation of 1 Gy α-particles and 6 Gy γ-rays were defined as DCs-α and DCs-γ, respectively.
5
Spirulina Dehydration in a Lab-Scale Batch Dryer
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The RW lab-scale batch dryer made for this study is presented in Figure 7 . It consisted of an aluminum reservoir (28.0 cm × 20.0 cm × 8.0 cm) filled with circulating hot water provided by a thermostatic bath (Tecnal, TE-184, Piracicaba-SP, Brazil), operating in a closed system. The support chosen for this apparatus was Mylar® polyester film type D (DuPont, Wilmingron, DE, USA).
The Mylar® film (with a thickness of 0.25 mm) was fixed on the top of the reservoir frame to ensure that the whole surface of film bottom was touched by the hot water. The water temperature was controlled by an external thermostatic bath (±0.1 °C). For each experiment, about 40 g of fresh Spirulina was spread over the Mylar® film with the aid of a plastic support so as to allow a uniform material thickness of 0.50 cm.
The Mylar® film (with a thickness of 0.25 mm) was fixed on the top of the reservoir frame to ensure that the whole surface of film bottom was touched by the hot water. The water temperature was controlled by an external thermostatic bath (±0.1 °C). For each experiment, about 40 g of fresh Spirulina was spread over the Mylar® film with the aid of a plastic support so as to allow a uniform material thickness of 0.50 cm.
6
Suppression of Alpha-Particle-Induced RAR by X-Rays
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To demonstrate suppression of alpha-particle–induced RAR by X-ray photons, we adopted a setting for alpha-particle irradiation of zebrafish embryos similar to that designed by Yum et al. [33 ]. A planar 241Am source with alpha-particle energy of 5.49 MeV under vacuum and an activity of 4.26 kBq was employed. In order to minimize the uncertainty in the energy of alpha particles hitting the cells of the embryos, all embryos were irradiated with the alpha particles coming from bottom after passing through a 3.5-μm thick Mylar film (Dupont, Hong Kong). All embryos were orientated carefully so that the cells of the embryos were facing directly towards the Mylar film and the alpha-particle source. With such a setting, the absorbed dose rate was ∼1.1 mGy/min [33 ].
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