Robust and hydrophilic polymeric films with honeycomb pattern and their cell scaffold applications

2009 ◽  
Vol 19 (18) ◽  
pp. 2789 ◽  
Author(s):  
Lei Li ◽  
Caikang Chen ◽  
Jian Li ◽  
Aijuan Zhang ◽  
Xinyu Liu ◽  
...  
Keyword(s):  
Polymeric Films ◽  
Cell Scaffold ◽  
Honeycomb Pattern

Adhesive and nanomechanical properties of polymeric films deposited on silicon

2005 ◽  
Vol 96 (11) ◽  
pp. 1292-1295
Author(s):  
D. Falkowska ◽  
M. Zielecka ◽  
N. V. Balabanava ◽  
A. Nowek ◽  
A. Rymuza
Keyword(s):  
Polymeric Films ◽  
Nanomechanical Properties

scholarly journals Fast Fabrication of Nanostructured Films Using Nanocolloid Lithography and UV Soft Mold Roller Embossing: Effects of Processing Parameters

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 405
Author(s):  
Demei Lee ◽  
Ya-Ling Tang ◽  
Shih-Jung Liu
Keyword(s):  
Uv Light ◽  
Processing Parameters ◽  
Polymeric Films ◽  
Step Motor ◽  
Silicon Substrates ◽  
Casting Method ◽  
Uv Curable ◽  
Soft Mold ◽  
Uv Curable Resin ◽  
Spin Coater

We report the fabrication of nanofeatured polymeric films using nanosphere lithography and ultraviolet (UV) soft-mold roller embossing and show an illuminative example of their application to solar cells. To prepare the nanofeatured template, polystyrene nanocolloids of two distinct sizes (900 and 300 nm) were overlaid on silicon substrates using a spin coater. A lab-made soft-mold roller embossing device equipped with a UV light source was adopted. A casting method was employed to replicate the nanofeatured template onto polydimethylsiloxane, which was used as the soft mold. During the embossing procedure, the roller was driven by a step motor and compressed the UV-curable resin against the glass substrate to form the nanofeatured layer, which was subsequently cured by UV radiation. Polymer films with nanoscaled features were thus obtained. The influence of distinct processing variables on the reproducibility of the nanofeatured films was explored. The empirical outcomes demonstrate that UV soft-mold roller embossing offers a simple yet potent way of producing nanofeatured films.

scholarly journals Design of Sodium Alginate/Gelatin-Based Emulsion Film Fused with Polylactide Microparticles Charged with Plant Extract

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 745 ◽  
Author(s):  
Weronika Prus-Walendziak ◽  
Justyna Kozlowska
Keyword(s):  
Sodium Alginate ◽  
Plant Extract ◽  
Contact Angles ◽  
Polymeric Films ◽  
Solvent Evaporation Method ◽  
Calendula Officinalis ◽  
Flower Extract ◽  
Polymeric Microparticles ◽  
Emulsion Film ◽  
Emulsion Films

This study aimed at designing emulsion films based on sodium alginate, gelatin, and glycerol, and their modification by the addition of lipids (cottonseed oil and beeswax). Film composition with the most promising properties was further modified by the incorporation of polylactide (PLA) microparticles with Calendula officinalis flower extract. PLA microspheres were obtained by the emulsion/solvent evaporation method. The size distribution of oily particles in emulsions was investigated. Mechanical properties, moisture content, UV-Vis spectra, and the color of films were analyzed, while biophysical skin parameters were assessed after their application to the skin. Moreover, the contact angles were measured, and the surface free energy of polymeric films was determined. An investigation of the amount of Calendula officinalis flower extract which can be incorporated into PLA microparticles was performed. The modification of the composition of films significantly influenced their physicochemical properties. The selected active ingredient in the form of plant extract was successfully incorporated into polymeric microparticles that were further added into the developed emulsion film. The condition of the skin after the application of obtained emulsion films improved. The prepared materials, especially containing microparticles with plant extract, can be considered for designing new cosmetic forms, such as cosmetic masks, as well as new topical formulations for pharmaceutical delivery.

scholarly journals Effects of an Acetic Acid and Acetone Mixture on the Characteristics and Scaffold–Cell Interaction of Electrospun Polycaprolactone Membranes

2019 ◽  
Vol 9 (20) ◽  
pp. 4350 ◽  
Author(s):  
Minh Hieu Ho ◽  
Thien Bui-Thuan Do ◽  
Nhi Ngoc-Thao Dang ◽  
An Nguyen-My Le ◽  
Hanh Thi-Kieu Ta ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Cell Interaction ◽  
Fibrous Materials ◽  
Cell Adherence ◽  
Physical Strength ◽  
Membrane Morphology ◽  
Cell Scaffold ◽  
Different Types ◽  
Proliferation Assays ◽  
Cell Adhesion And Proliferation

Green electrospinning has attracted great interest since non-toxic solvents were shown to be applicable in the fabrication of fibrous materials while ensuring health safety and environmental protection. Less harmful reagents such as acetone (AC) and acetic acid (AA) have been employed in this field in recent years. However, research in this area is still rare, yielding only preliminary results. In this study, two different types of solvents (pure AC and an AA/AC mixture) were used to fabricate electrospun polycaprolactone (PCL) membranes. Sample morphology, wettability, tensile strength, and chemical composition were compared between two types of membranes. Cell–scaffold interaction was also examined by cell adhesion and proliferation assays. The results demonstrate that the two types of solvents had significant effects on membrane morphology, physical strength, and cell adherence behaviors, which should be considered for different application purposes.

scholarly journals Laser-induced self-phase modulation in polymeric films

1990 ◽  
Vol 50 (4) ◽  
pp. 330-330
Author(s):  
L. N. Binh ◽  
X. Dai ◽  
Y. H. Ja
Keyword(s):  
Phase Modulation ◽  
Polymeric Films ◽  
Self Phase Modulation

Kinetics of Chemical Changes in Phenol Formaldehyde Based Polymeric Films Etched in N2O and O2Inductively Coupled Plasmas: A Comparative Study

2009 ◽  
Vol 48 (8) ◽  
pp. 08HA02 ◽  
Author(s):  
Kwang-Ho Kwon ◽  
Nam-Ki Min ◽  
Seung-Youl Kang ◽  
Kyu-Ha Baek ◽  
Kyung Soo Suh ◽  
...  
Keyword(s):  
Comparative Study ◽  
Phenol Formaldehyde ◽  
Polymeric Films ◽  
Chemical Changes ◽  
Coupled Plasmas ◽  
Kinetics Of

Polarizing properties of polymeric films modified by silver nanoparticles

2008 ◽  
Author(s):  
V. E. Agabekov ◽  
N. A. Ivanova ◽  
E. V. Karpinchik ◽  
T. G. Kosmacheva ◽  
V. A. Dlugunovich ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Polymeric Films
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