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Journal articles on the topic 'Films suspendus'

Author: Grafiati

Published: 25 May 2024

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1

Forsythe, Carlos, Madeleine P. Gordon, and Jeffrey J. Urban. "3ω techniques for measurement of volumetric heat capacity and anisotropic thermal conductivity of a solution processable, hybrid organic/inorganic film, Te-PEDOT:PSS." Journal of Applied Physics 131, no. 10 (March 14, 2022): 105109. http://dx.doi.org/10.1063/5.0079328.

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Measuring the thermal properties of anisotropic films of hybrid materials poses a challenge to existing metrology techniques. We have developed a new approach for measuring the volumetric heat capacity and anisotropic thermal conductivity of these systems using the 3ω method. While there exist many avenues for measuring the thermal properties of thin films, most carry with them difficult requirements such as smooth surfaces or advanced lithography. Here, we present measurements of a film's in-plane and cross-plane conductance and its volumetric heat capacity using relatively simple sample configurations, each requiring a single heater. For the measurement of volumetric heat capacity, we present a new model fitting method, relying on a standard film-on-substrate configuration. For the measurement of in-plane thermal conductance by 3ω, we have developed the use of an embedded micro-wire heater in suspended drop cast films, allowing for a 12 μm wide heater without the need for advanced lithography. We also expose the surprisingly significant effect of thermal radiation in the suspended film measurement and its associated error. Our measurements reveal a large anisotropy in the thermal conductivity of our test material, Te-PEDOT:PSS, of kin-plane/ kcross-plane = 19, consistent with the nanoscale morphology of the material.

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2

Xiao, Binbin, Mengqing Yin, Wanfa Li, Lingyan Liang, Shixun Dai, Xiaohui Zhang, Wei Wang, and Zhaoping Liu. "Significant Enhanced Mechanical Properties of Suspended Graphene Film by Stacking Multilayer CVD Graphene Films." Micromachines 14, no. 4 (March 28, 2023): 745. http://dx.doi.org/10.3390/mi14040745.

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Suspended graphene film is of great significance for building high-performance electrical devices. However, fabricating large-area suspended graphene film with good mechanical properties is still a challenge, especially for the chemical vapor deposition (CVD)-grown graphene films. In this work, the mechanical properties of suspended CVD-grown graphene film are investigated systematically for the first time. It is found that monolayer graphene film is hard to maintain on circular holes with a diameter of tens of micrometers, which can be improved greatly by increasing the layer of graphene films. The mechanical properties of CVD-grown multilayer graphene films suspended on a circular hole with a diameter of 70 µm can be increased by 20%, and multilayer graphene films prepared by layer-layer stacking process can be increased by up to 400% for the same size. The corresponding mechanism was also discussed in detail, which might pave the way for building high-performance electrical devices based on high-strength suspended graphene film.

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3

Debrégeas, G., P. Martin, and F. Brochard-Wyart. "Viscous Bursting of Suspended Films." Physical Review Letters 75, no. 21 (November 20, 1995): 3886–89. http://dx.doi.org/10.1103/physrevlett.75.3886.

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4

Kubo, Tomoko, Eisuke Tadaoka, and Hiromitsu Kozuka. "Formation of silica coating films from spin-on polysilazane at room temperature and their stability in hot water." Journal of Materials Research 19, no. 2 (February 2004): 635–42. http://dx.doi.org/10.1557/jmr.2004.19.2.635.

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Spin-coating was conducted on single-crystal silicon substrates using a xylene solution of perhydropolysilazane (PHPS) to obtain 0.14-μm-thick PHPS films. The PHPS films obtained were suspended over various acidic and basic solutions at room temperature so that they were exposed to the vapors from the solutions. PHPS-to-silica film conversion was studied by infrared absorption spectroscopy, and the stability of the exposed films in hot water was examined by soaking the films in 80 °C water. The as-deposited PHPS films were found to be dissolved in water. When the PHPS films were suspended over water, the films were partially converted into silica, but the resultant film had low stability in hot water. Higher degrees of PHPS-to-silica conversion and higher stabilities in hot water were found on exposing the PHPS films to basic or acidic vapors. Exposure to highly basic vapors from aqueous solutions of ammonia and ethylamine was significantly effective in PHPS-to-silica film conversion, which provided silica thin films with high stability in hot water.

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5

BAHR, CHRISTIAN. "INFLUENCE OF DIMENSIONALITY AND SURFACE ORDERING ON PHASE TRANSITIONS: STUDIES OF FREELY-SUSPENDED LIQUID-CRYSTAL FILMS." International Journal of Modern Physics B 08, no. 22 (October 10, 1994): 3051–82. http://dx.doi.org/10.1142/s0217979294001299.

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Freely-suspended films of smectic liquid crystals can be regarded as membranes consisting of a stack of an integral number of molecular (smectic) layers with the layer planes being parallel to the two free surfaces. Because of their variable thickness (between thousands and only two layers) and the large variety of phase transitions between different smectic phases, freely-suspended films are excellent systems to study the influence of the dimensional cross-over from three to two dimensions on phase transitions. Further, because the free surface of a liquid crystal has a strong ordering effect (contrary to solids which exhibit generally surface-induced disorder), freely-suspended films are well-suited for the study of the effect of enhanced surface order on phase transitions. A review of the corresponding experimental work is given.

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6

Jugade, Sanket S., Anuj Aggarwal, and Akshay K. Naik. "Nanomechanical spectroscopy of ultrathin silicon nitride suspended membranes." European Physical Journal Applied Physics 94, no. 2 (May 2021): 20301. http://dx.doi.org/10.1051/epjap/2021210068.

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Mechanical properties of a nanomechanical resonator significantly impact the performance of a resonant Nano-electromechanical system (NEMS) device. We study the mechanical properties of suspended membranes fabricated out of low-pressure chemical vapor deposited silicon nitride thin films. We fabricated doubly-clamped membranes of silicon nitride with thickness less than 50 nm and length varying from 5 to 60 μm. The elastic modulus and stress in the suspended membranes were measured using Atomic Force Microscope (AFM)-based nanomechanical spectroscopy. The elastic moduli of the suspended membranes are significantly higher than those of corresponding on-substrate thin films. We observed a reduction in net stress after the fabrication of suspended membrane, which is explained by estimating the thermal stress and intrinsic stress. We also use a mathematical model to study the stress and thickness-dependent elastic modulus of the ultrathin membranes. Lastly, we study the capillary force-gradient between the SiNx suspended membrane-Si substrate that could collapse the suspended membrane.

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7

Wang, Qin, Ying Liu, Fangsong Xu, Xiande Zheng, Guishan Wang, Yong Zhang, Jing Qiu, and Guanjun Liu. "Large-Size Suspended Mono-Layer Graphene Film Transfer Based on the Inverted Floating Method." Micromachines 12, no. 5 (May 6, 2021): 525. http://dx.doi.org/10.3390/mi12050525.

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Suspended graphene can perfectly present the excellent material properties of graphene, which has a good application prospect in graphene sensors. The existing suspended graphene pressure sensor has several problems that need to be solved, one of which is the fabrication of a suspended sample. It is still very difficult to obtain large-size suspended graphene films with a high integrity that are defect-free. Based on the simulation and analysis of the kinetic process of the traditional suspended graphene release process, a novel setup for large-size suspended graphene release was designed based on the inverted floating method (IFM). The success rate of the single-layer suspended graphene with a diameter of 200 μm transferred on a stainless-steel substrate was close to 50%, which is greatly improved compared with the traditional impregnation method. The effects of the defects and burrs around the substrate cavity on the stress concentration of graphene transfer explain why the transfer success rate of large-size suspended graphene is not high. This research lays the foundation for providing large-size suspended graphene films in the area of graphene high-precision sensors.

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8

Kats, E. I., and V. V. Lebedev. "Dynamics of freely suspended smectic films." Uspekhi Fizicheskih Nauk 152, no. 8 (1987): 695. http://dx.doi.org/10.3367/ufnr.0152.198708k.0695.

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9

Kats, E. I., and V. V. Lebedev. "Dynamics of freely suspended smectic films." Soviet Physics Uspekhi 30, no. 8 (August 31, 1987): 739–40. http://dx.doi.org/10.1070/pu1987v030n08abeh002945.

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10

Centkowska, Katarzyna, Elżbieta Ławrecka, and Malgorzata Sznitowska. "Technology of Orodispersible Polymer Films with Micronized Loratadine—Influence of Different Drug Loadings on Film Properties." Pharmaceutics 12, no. 3 (March 10, 2020): 250. http://dx.doi.org/10.3390/pharmaceutics12030250.

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The production of orodispersible films (ODFs) with suspended insoluble drug substances is still a challenge, mainly due to the difficulty associated with achieving a proper homogeneity and mechanical properties of the films. Hypromellose (HPMC) and a mixture of polyvinyl alcohol (AP) and povidone (PVP) were compared in terms of their suitability for ODFs incorporating suspended micronized loratadine (LO) in a concentration range of 10%–40%. In a planetary mixer (Thinky), a uniform dispersion of LO in an aqueous viscous casting solution was obtained. The suspended LO particles caused dose-dependent changes in the viscosity of the casting mass and affected the mechanical quality of ODFs. Drug concentrations higher than 30% reduced the film flexibility and tear resistance, depending on the polymer type. LO films with a thickness of 100 µm disintegrated within 60-100 s, with no significant influence of the LO content in the range 10%–30%. HPMC films, regardless of the drug concentration, met the pharmacopoeial requirements regarding the uniformity of the drug content. AP/PVP films were too elastic, and the drug content uniformity was not achieved. The conclusion is that, using an HPMC matrix, it is possible to obtain a high load of a poorly water-soluble drug (30% of dry film mass corresponds to a dose of 5 mg per 1.5 cm2) in ODFs characterized by proper physical characteristics.

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11

Decher, G., J. Reibel, M. Honig, I. G. Voigt-Martin, A. Dittrich, H. Ringsdorf, H. Poths, and R. Zentel. "Freely-Suspended and Transferred Freely-Suspended Films of Polymeric Liquid Crystals." Berichte der Bunsengesellschaft für physikalische Chemie 97, no. 10 (October 1993): 1386–93. http://dx.doi.org/10.1002/bbpc.19930971035.

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12

Kim, Intae, Taechang An, and Geunbae Lim. "Organophosphorus Compounds Detection Using Suspended SWNT Films." Journal of Sensor Science and Technology 22, no. 5 (September 30, 2013): 346–51. http://dx.doi.org/10.5369/jsst.2013.22.5.346.

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13

Kraus, Isabelle, Christian Bahr, and Pawel Pieranski. "Mechanical Properties of Freely Suspended Smectic Films." Journal de Physique II 7, no. 11 (November 1997): 1617–34. http://dx.doi.org/10.1051/jp2:1997206.

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14

Langer, C., and R. Stannarius. "Electroconvection in Freely Suspended Smectic C* Films." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 328, no. 1 (August 1999): 533–40. http://dx.doi.org/10.1080/10587259908026097.

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15

Śliwa, I., and A. V. Zakharov. "Diffusion processes in freely suspended smectic films." Physics of the Solid State 59, no. 8 (August 2017): 1648–55. http://dx.doi.org/10.1134/s1063783417080248.

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16

Ramos, Antonio Carlos A., O. G. Balev, and Nelson Studart. "Surface Electron Channels on Suspended Helium Films." Journal of Low Temperature Physics 138, no. 1-2 (January 2005): 403–8. http://dx.doi.org/10.1007/s10909-005-1585-8.

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17

Gennes, Pierre-Gilles de. "Glass transitions of freely suspended polymer films." Comptes Rendus de l'Académie des Sciences - Series IV - Physics 1, no. 9 (November 2000): 1179–86. http://dx.doi.org/10.1016/s1296-2147(00)01131-8.

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18

Shirsavar, R., A. Amjadi, A. Tonddast-Navaei, and M. R. Ejtehadi. "Electrically rotating suspended films of polar liquids." Experiments in Fluids 50, no. 2 (August 4, 2010): 419–28. http://dx.doi.org/10.1007/s00348-010-0938-5.

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19

Denkov, Nikolai D., Hideyuki Yoshimura, Kuniaki Nagayama, and Tsutomu Kouyama. "Nanoparticle Arrays in Freely Suspended Vitrified Films." Physical Review Letters 76, no. 13 (March 25, 1996): 2354–57. http://dx.doi.org/10.1103/physrevlett.76.2354.

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20

Martinez, Y., A. M. Somoza, L. Mederos, and D. E. Sullivan. "Metastability of freely suspended liquid-crystal films." Physical Review E 53, no. 3 (March 1, 1996): 2466–72. http://dx.doi.org/10.1103/physreve.53.2466.

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21

Stannarius, R., and C. Langer. "Kink Propagation in Freely Suspended SmC* Films." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 358, no. 1 (April 2001): 109–23. http://dx.doi.org/10.1080/10587250108028275.

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22

Bouchama, F., and J. M. di Meglio. "Rheological studies of freely suspended soap films." Colloid & Polymer Science 278, no. 3 (March 3, 2000): 195–201. http://dx.doi.org/10.1007/s003960050032.

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23

Klopp, Christoph, Torsten Trittel, Alexey Eremin, Kirsten Harth, Ralf Stannarius, Cheol S. Park, Joseph E. Maclennan, and Noel A. Clark. "Structure and dynamics of a two-dimensional colloid of liquid droplets." Soft Matter 15, no. 40 (2019): 8156–63. http://dx.doi.org/10.1039/c9sm01433k.

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24

Cumberland, Jenieve, Tetiana Lopatkina, Matthew Murachver, Piotr Popov, Viktor Kenderesi, Ágnes Buka, Elizabeth K. Mann, and Antal Jákli. "Bending nematic liquid crystal membranes with phospholipids." Soft Matter 14, no. 34 (2018): 7003–8. http://dx.doi.org/10.1039/c8sm01193a.

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25

Nebogatikova, Nadezhda A., Irina V. Antonova, Anton K. Gutakovskii, Dmitriy V. Smovzh, Vladimir A. Volodin, and Pavel B. Sorokin. "Visualization of Swift Ion Tracks in Suspended Local Diamondized Few-Layer Graphene." Materials 16, no. 4 (February 7, 2023): 1391. http://dx.doi.org/10.3390/ma16041391.

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In the present study we investigated the nanostructuring processes in locally suspended few-layer graphene (FLG) films by irradiation with high energy ions (Xe, 26–167 MeV). For such an energy range, the main channel of energy transfer to FLG is local, short-term excitation of the electronic subsystem. The irradiation doses used in this study are 1 × 1011–5 × 1012 ion/cm2. The structural transformations in the films were identified by Raman spectroscopy and transmission electron microscopy. Two types of nanostructures formed in the FLG films as a result of irradiation were revealed. At low irradiation doses the nanostructures were formed preferably at a certain distance from the ion track and had the form of 15–35 nm “bunches”. We assumed that the internal mechanical stress that arises due to the excited atoms ejection from the central track part creates conditions for the nanodiamond formation near the track periphery. Depending on the energy of the irradiating ions, the local restructuring of films at the periphery of the ion tracks can lead either to the formation of nanodiamonds (ND) or to the formation of AA’ (or ABC) stacking. The compressive strain value and pressure at the periphery of the ion track were estimated as ~0.15–0.22% and ~0.8–1.2 GPa, respectively. The main novel results are the first visualization of ion tracks in graphene in the form of diamond or diamond-like rings, the determination of the main condition for the diamond formation (the absence of a substrate in combination with high ion energy), and estimates of the local strain at the track periphery. Generally, we have developed a novel material and have found how to control the film properties by introducing regions similar to quantum dots with the diamond interface in FLG films.

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26

Chiang, H. T., V. S. Chen-White, R. Pindak, and M. Seul. "Ordering Transitions in Thin, Freely-Suspended Phospholipid Films." Journal de Physique II 5, no. 6 (June 1995): 835–57. http://dx.doi.org/10.1051/jp2:1995168.

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27

Langer, C., and R. Stannarius. "Travelling polarization walls in freely suspended smecticC* films." Ferroelectrics 244, no. 1 (May 2000): 347–60. http://dx.doi.org/10.1080/00150190008228447.

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28

Yablonskii, Serguei V., Toshiyasu Oue, Hidetaka Nambu, Aleksey S. Mikhailov, Masanori Ozaki, and Katsumi Yoshino. "Electromechanical effect in freely suspended liquid crystal films." Applied Physics Letters 75, no. 1 (July 5, 1999): 64–66. http://dx.doi.org/10.1063/1.124325.

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29

Van Winkle, David H., S. B. Dierker, and N. A. Clark. "Raman scattering from freely suspended liquid crystal films." Journal of Chemical Physics 91, no. 9 (November 1989): 5212–17. http://dx.doi.org/10.1063/1.457592.

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30

Marathe, Yatin, and Sriram Ramaswamy. "Dynamics of freely suspended films with surface tension." Journal de Physique 51, no. 19 (1990): 2143–52. http://dx.doi.org/10.1051/jphys:0199000510190214300.

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31

Dolganov, P. V., and B. M. Bolotin. "Orientational defects in freely suspended smectic C films." Journal of Experimental and Theoretical Physics Letters 77, no. 8 (April 2003): 429–33. http://dx.doi.org/10.1134/1.1587178.

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32

Kraus, Isabelle, Christian Bahr, and Pawel Pieranski. "Mechanical Perturbation Applied on Freely Suspended Smectic Films." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 262, no. 1 (March 1995): 1–12. http://dx.doi.org/10.1080/10587259508033507.

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33

Van Winkle, D. H., M. Nechanicky, and F. Kettwig. "Nematic Bubbles in Freely Suspended Liquid Crystal Films." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 304, no. 1 (September 1997): 471–76. http://dx.doi.org/10.1080/10587259708046998.

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34

Nakano, Kazuyuki, Masanori Ozaki, and Katsumi Yoshino. "Vibration Analysis of Freely Suspended Liquid-Crystal Films." Molecular Crystals and Liquid Crystals 412, no. 1 (January 2004): 377–83. http://dx.doi.org/10.1080/15421400490440273.

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35

Pang, Jinzhong, Chris D. Muzny, and Noel A. Clark. "String defects in freely suspended liquid-crystal films." Physical Review Letters 69, no. 19 (November 9, 1992): 2783–86. http://dx.doi.org/10.1103/physrevlett.69.2783.

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36

Morin, A., D. Lucot, A. Ouerghi, G. Patriarche, E. Bourhis, A. Madouri, C. Ulysse, et al. "FIB carving of nanopores into suspended graphene films." Microelectronic Engineering 97 (September 2012): 311–16. http://dx.doi.org/10.1016/j.mee.2012.02.029.

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37

Svanberg, C. "Glass Transition Relaxations in Thin Suspended Polymer Films." Macromolecules 40, no. 2 (January 2007): 312–15. http://dx.doi.org/10.1021/ma061967b.

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38

Brown, Joseph J., and Victor M. Bright. "Mechanical Interfacing Using Suspended Ultrathin Films From ALD." Journal of Microelectromechanical Systems 25, no. 2 (April 2016): 356–61. http://dx.doi.org/10.1109/jmems.2016.2519341.

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39

Krichevsky, Oleg, and Joel Stavans. "Surfactant-Polymer Interactions in Freely Suspended Lyotropic Films." Physical Review Letters 73, no. 5 (August 1, 1994): 696–99. http://dx.doi.org/10.1103/physrevlett.73.696.

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40

Martin, B., and X. L. Wu. "Double-Diffusive Convection in Freely Suspended Soap Films." Physical Review Letters 80, no. 9 (March 2, 1998): 1892–95. http://dx.doi.org/10.1103/physrevlett.80.1892.

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41

Pleiner, H., and H. R. Brand. "The undulation mode of freely suspended liquid films." Journal of Physics: Condensed Matter 4, no. 1 (January 6, 1992): L29—L32. http://dx.doi.org/10.1088/0953-8984/4/1/007.

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42

Langevin, D., C. Marquez-Beltran, and J. Delacotte. "Surface force measurements on freely suspended liquid films." Advances in Colloid and Interface Science 168, no. 1-2 (October 2011): 124–34. http://dx.doi.org/10.1016/j.cis.2011.03.007.

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43

Oude Vrielink, Anneloes S., Paul H. H. Bomans, Edgar J. D. Vredenbregt, Maarten J. M. Wirix, Nico A. J. M. Sommerdijk, O. J. Luiten, and Ilja K. Voets. "Suspended crystalline films of protein hydrophobin I (HFBI)." Journal of Colloid and Interface Science 447 (June 2015): 107–12. http://dx.doi.org/10.1016/j.jcis.2015.01.073.

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44

Brock, J. D., D. Y. Noh, B. R. McClain, J. D. Litster, R. J. Birgeneau, Amnon Aharony, P. M. Horn, and Jason C. Liang. "Hexatic ordering in freely suspended liquid crystal films." Zeitschrift f�r Physik B Condensed Matter 74, no. 2 (June 1989): 197–213. http://dx.doi.org/10.1007/bf01307386.

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45

Radzihovsky, Sarah P., Chaney Cranfill, Zoom Nguyen, Cheol S. Park, Joseph E. Maclennan, Matthew A. Glaser, and Noel A. Clark. "Two-dimensional island emulsions in ultrathin, freely-suspended smectic liquid crystal films." Soft Matter 13, no. 37 (2017): 6314–21. http://dx.doi.org/10.1039/c7sm01584d.

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46

Wouters, Maarten, Othmane Aouane, Marcello Sega, and Jens Harting. "Capillary interactions between soft capsules protruding through thin fluid films." Soft Matter 16, no. 48 (2020): 10910–20. http://dx.doi.org/10.1039/d0sm01385d.

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When a suspension dries, the suspending fluid evaporates, leaving behind a dry film composed of the suspended particles. We consider here the role of the particles softness on the drying process of a film with suspended fluid-filled elastic capsules.

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47

Yarali, Milad, Ji Hao, Mohammad Khodadadi, Hatem Brahmi, Shuo Chen, Viktor G. Hadjiev, Yung Joon Jung, and Anastassios Mavrokefalos. "Physisorbed versus chemisorbed oxygen effect on thermoelectric properties of highly organized single walled carbon nanotube nanofilms." RSC Advances 7, no. 23 (2017): 14078–87. http://dx.doi.org/10.1039/c6ra27846a.

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The effect of physisorbedvs.chemisorbed oxygen on highly organized single walled carbon nanotube (SWCNT) ultrathin films is investigated by correlating the thermoelectric properties measured by a suspended micro-device to the SWCNT structure.

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48

Pospíšilík, Václav, and Stanislav Honus. "Issue of heat mirror films overheating." MATEC Web of Conferences 345 (2021): 00025. http://dx.doi.org/10.1051/matecconf/202134500025.

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The study focuses on the issue of coated thin plastic films overheating due to the absorption of solar radiation. These films are suspended within the sealed space of dual-pane insulating glass units (IGU). Films are deformed due to thermal stress and the glazing ceases to carry out its function. The surface temperature of the glazing system was evaluated from energy balance during a sunny day. It was supposed the intensity of solar radiation 1000 W/m2. Solar radiation incidents perpendicular to the surface of the glazing. Spectroscopic measurement was performed and optical properties of glasses and films were evaluated. Finally, suitable glazing was designed, which partially prevents transmission of the solar radiation into the inner space of glazing and the thin plastic films are not significantly overheated.

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49

Law, Hoi Lun. "Critical haunting." Short Film Studies 9, no. 2 (April 1, 2019): 219–22. http://dx.doi.org/10.1386/sfs.9.2.219_1.

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A distinctive feature of Haunted Memory is its evocative interplay between voice-over and visual that suspends the viewer – not unlike the curious-child in Víctor Erice’s films – in a position between understanding and non-understanding. This article explores how the practice of the audio-visual essay presents an opportunity to exploit critical uncertainty.

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50

CONTE, A., G. G. BUONOCORE, M. SINIGAGLIA, L. C. LOPEZ, P. FAVIA, R. d'AGOSTINO, and M. A. DEL NOBILE. "Antimicrobial Activity of Immobilized Lysozyme on Plasma-Treated Polyethylene Films." Journal of Food Protection 71, no. 1 (January 1, 2008): 119–25. http://dx.doi.org/10.4315/0362-028x-71.1.119.

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In this study we tested the antimicrobial activity of polyethylene films modified by means of plasma processes that were followed by the chemical immobilization of lysozyme, an antimicrobial enzyme. To chemically immobilize the enzyme in its active form at the surface of polyethylene, substrates that had been plasma treated under different experimental conditions were soaked in lysozyme solutions at different concentrations. The immobilization of the enzyme was checked, and the antimicrobial activity of the films was investigated by observing the death rate of Micrococcus lysodeikticus cells suspended in phosphate buffer in contact with the films. The results clearly indicate that plasma-treated films loaded with lysozyme are active against the selected microorganism. A modified version of the Gompertz equation was used to quantitatively valuate the dependence of the antimicrobial activity of the films under both plasma treatment conditions and lysozyme concentrations.

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