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Wang Y, Cheng C, Li S, Sun S, Zhao C. Immobilization of carbonic anhydrase on modified PES membranes for artificial lungs. J Mater Chem B 2024; 12:2364-2372. [PMID: 38345129 DOI: 10.1039/d3tb02553e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
The introduction of carbonic anhydrase (CA) onto an extracorporeal membrane oxygenation (ECMO) membrane can improve the permeability of carbon dioxide (CO2). However, existing CA-grafting methods have limitations, and the hemocompatibility of current substrate membranes of commercial ECMO is not satisfactory. In this study, a 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC)/N-hydroxy succinimide (NHS) activation method is adopted to graft CA with CO2-catalyzed conversion activity onto a polyethersulfone (PES) membrane, which is prepared by a phase inversion technique after in situ crosslinking polymerization of 1-vinyl-2-pyrrolidone (VP) and acrylic acid (AA) in PES solution. The characterization results reveal that CA has been grafted onto the modified PES membrane successfully and exhibits catalytic activity. The kinetic parameters of esterase activity verify that the grafted amount of active CA increases with an increase in the concentration of the CA incubation solution. The CA-grafted membrane (CA-M) can accelerate the conversion of bicarbonate to CO2 in water and blood, which demonstrates the special catalytic activity towards bicarbonate of CA. Finally, blood compatibility tests prove that the CA-M does not lead to hemolysis, shows suppressed protein adsorption and increased coagulation time, and is suitable for application in ECMO. This work demonstrates a green and efficient method for preparing bioactive materials and has practical guiding significance for subsequent pulmonary membrane research and ECMO applications.
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Affiliation(s)
- Yi Wang
- Sichuan University, College Biomedical Engineering, Chengdu 610065, Sichuan, P. R. China
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China.
| | - Shuang Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China.
| | - Shudong Sun
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China.
| | - Changsheng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China.
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
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2
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Aktas C, Polat O, Beitollahpoor M, Farzam M, Pesika NS, Sahiner N. Force-Based Characterization of the Wetting Properties of LDPE Surfaces Treated with CF 4 and H 2 Plasmas. Polymers (Basel) 2023; 15:polym15092132. [PMID: 37177278 PMCID: PMC10181085 DOI: 10.3390/polym15092132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Low-density polyethylene (LDPE) films are widely used in packaging, insulation and many other commodity applications due to their excellent mechanical and chemical properties. However, the water-wetting and water-repellant properties of these films are insufficient for certain applications. In this study, bare LDPE and textured LDPE (T-LDPE) films were subjected to low-pressure plasmas, such as carbon tetrafluoride (CF4) and hydrogen (H2), to see the effect of plasma treatment on the wetting properties of LDPE films. In addition, the surface of the LDPE film was textured to improve the hydrophobicity through the lotus effect. The LDPE and T-LDPE films had contact angle (θ) values of 98.6° ± 0.6 and 143.6° ± 1.0, respectively. After CF4 plasma treatments, the θ values of the surfaces increased for both surfaces, albeit within the standard deviation for the T-LDPE film. On the other hand, the contact angle values after H2 plasma treatment decreased for both surfaces. The surface energy measurements supported the changes in the contact angle values: exposure to H2 plasma decreased the contact angle, while exposure to CF4 plasma increased the contact angle. Kinetic friction force measurements of water drops on LDPE and T-LDPE films showed a decrease in friction after the CF4 plasma treatment, consistent with the contact angle and surface energy measurements. Notably, the kinetic friction force measurements proved to be more sensitive compared to the contact angle measurements in differentiating the wetting properties of the T-LDPE versus 3× CF4-plasma-treated LDPE films. Based on Atomic Force Microscopy (AFM) images of the flat LDPE samples, the 3× CF4 plasma treatment did not significantly change the surface morphology or roughness. However, in the case of the T-LDPE samples, Scanning Electron Microscopy (SEM) images showed noticeable morphological changes, which were more significant at sharp edges of the surface structures.
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Affiliation(s)
- Cihan Aktas
- Department of Chemical, Biomolecular and Materials Engineering, University of South Florida, Tampa, FL 33620, USA
| | - Osman Polat
- Department of Chemical, Biomolecular and Materials Engineering, University of South Florida, Tampa, FL 33620, USA
| | | | - Melika Farzam
- Chemical and Biomolecular Engineering Department, Tulane University, New Orleans, LA 70118, USA
| | - Noshir S Pesika
- Chemical and Biomolecular Engineering Department, Tulane University, New Orleans, LA 70118, USA
| | - Nurettin Sahiner
- Department of Chemical, Biomolecular and Materials Engineering, University of South Florida, Tampa, FL 33620, USA
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd, MDC21, Tampa, FL 33612, USA
- Department of Chemistry, Faculty of Science and Arts & Nanoscience, Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Terzioglu Campus, 17100 Canakkale, Turkey
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3
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Plasma-treated LDPE film incorporated with onion and potato peel extract – A food packaging for shelf life extension on chicken thigh. Food Packag Shelf Life 2023. [DOI: 10.1016/j.fpsl.2022.101012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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4
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Experimental Studies on the Influence of Plasma Treatment of Polyethylene in Carbon Fiber Composites: Mechanical and Morphological Studies. Polymers (Basel) 2022; 14:polym14061095. [PMID: 35335426 PMCID: PMC8949937 DOI: 10.3390/polym14061095] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/05/2022] [Accepted: 03/06/2022] [Indexed: 02/04/2023] Open
Abstract
This research focused on enhancement of mechanical properties in carbon fiber (CF)-filler-reinforced linear low-density polyethylene (PE) matrix composites. A hand layup method using an oven was used as the fabrication method. Improvement in adhesion was achieved by oxygen plasma treatment to the PE matrix. CF and PE were initially mixed by normal stirring, ultrasonication and mechanical stirring before being filtered and dried for fabrication. Better tensile results were observed with a plasma-treated polyethylene (PEP)/10 wt.% CF combination, with a maximum tensile strength of 21.5 MPa and improvement in the properties of up to 12.57% compared to non-plasma PE with the same CF addition. The addition of carbon fibers at 13 and 15 wt.% resulted in a reduction in the tensile strength properties to 18.2 MPa and 17.7 MPa, respectively. This reduction in tensile strength was due to agglomeration of CF with plasma- and non-plasma-treated PE. The fabrication condition of 180 °C temperature for 20 min showed better tensile properties than other conditions. The SEM results following tensile testing revealed enhanced CF filler adherence with plasma PE results, as well as fewer surface deformations. A higher flexural strength of 25.87 MPa was observed for the plasma treated PE/7 wt.% CF combination.
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Investigation of the Drag-Reduction Phenomenon on Plasma-Modified Surface. Symmetry (Basel) 2022. [DOI: 10.3390/sym14030524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Drag is one of the main energy-dissipating phenomena in engineering applications. Drag-reduction mechanisms have been studied to reduce this cost. Superhydrophobic surfaces (SHS) have high water repellency and have been studied as an alternative mechanism for reducing drag. The high level of repellency is due to the hierarchical structures in the micro- and nano-scales, making these surfaces able to trap air layers that impose the condition of slipping. The present work investigated the phenomenon of drag reduction on surfaces made of Sylgard® 184 elastomer and modified by low-pressure plasma treatments. Atmospheres with 40% Argon and 60% Acetylene, and 20% Argon and 80% Acetylene were used, varying the treatment times from 10 to 15 min of exposure to Acetylene. The surface, morphological and chemical modifications were confirmed by XPS and AFM analyses, showing the impression of a rough structure on the nanometric scale with deposition of chemical elements from the gas plasma. Furthermore, the obtained SHS showed lower resistance to flow, tested by the imposition of flow in channels.
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6
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Application of Nitrogen Piezoelectric Direct Discharge for Increase in Surface Free Energy of Polymers. PLASMA 2022. [DOI: 10.3390/plasma5010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The subject of this study is the application of the piezoelectric direct discharge (PDD) operated with nitrogen to control the surface free energy (SFE) of polymers. The activation area, defined as the area of the zone reaching the SFE of 58 mN/m for high-density polyethylene (HDPE) and poly (methyl methacrylate) (PMMA), is characterized. For HDPE, the activation area was characterized as a function of the distance from 1 to 16 mm, the nitrogen flow from 5 to 20 SLM, and the treatment time from 1 to 32 s. For larger distances, where SFE does not exceed 58 mN/m, the water contact angle is evaluated. The activation area for nitrogen PDD is typically a factor of 3 higher than for air with all other conditions the same. A maximum static activation area of 15 cm2 is reached. The plasma treatment of lens panels made of PMMA is presented as application example.
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Wettability and Adhesion of Polyethylene Powder Treated with Non-Equilibrium Various Gaseous Plasma in Semi-Industrial Equipment. MATERIALS 2022; 15:ma15020686. [PMID: 35057406 PMCID: PMC8780882 DOI: 10.3390/ma15020686] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/10/2022] [Accepted: 01/13/2022] [Indexed: 01/02/2023]
Abstract
Plasma treatment of polyethylene powder was carried out in low-pressure gaseous plasma sustained in a semi-industrial reactor powered with a microwave source, in which it was specifically worked with the residual atmosphere. Timed applications of plasma-treated powder in air atmosphere were carried out to study their influence on the adhesion. Based on wettability and adhesion, a treatment time of 5 min was selected for the study of other working gases (nitrogen, oxygen, hydrogen, argon and a mixture of nitrogen and hydrogen). The measurements of wettability showed the highest adhesion increase for nitrogen. The highest increase of adhesion and of surface oxygen contain shown by oxygen treatment. By contrast, treatment with hydrogen resulted in increased roughness of the sintered surface of the powder. The selection of appropriate working gases which are not standard in industrial processes enables one to atypically regulate the adhesion or wettability.
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The enhanced yield of polyphenols and antioxidant activity from onion peel (Allium cepa L.) and its incorporation into low-density polyethylene films. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-021-01252-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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9
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Khanikar RR, Kalita P, Narzary M, Basumatary D, Bharati AJ, Priyadarshi A, Swaminathan R, Bailung H, Sankaranarayanan K. Cold atmospheric plasma driven self-assembly in serum proteins: insights into the protein aggregation to biomaterials. RSC Adv 2022; 12:26211-26219. [PMID: 36275105 PMCID: PMC9476907 DOI: 10.1039/d2ra04318a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/31/2022] [Indexed: 11/29/2022] Open
Abstract
The self-assembly of proteins is crucial in many biomedical applications. This work deals with understanding the role of cold atmospheric plasma (CAP) on the self-assembly of two different proteins present in the serum – BSA and hemoglobin and to elucidate the process associated with the direct application of physical plasma on or in the human (or animal) body, which has implications in therapeutics. The work has been corroborated by several spectroscopic studies such as fluorescence spectroscopy, circular dichroism spectroscopy, and SEM analysis. Through steady-state fluorescence spectroscopy and by following the tryptophan fluorescence, we observed that the emission intensity was quenched for the protein when treated with plasma radiation. Circular dichroism spectroscopy revealed that the structure of the protein was altered both in the case of BSA and hemoglobin. N-Acetyl tryptophanamide (NATA), which resembles the tryptophan in the protein, was treated with CAP and we observed the similar quenching of fluorescence as in the proteins, indicating that the protein underwent self-assembly. Time-resolved fluorescence spectroscopy with a decrease in the lifetime revealed that the protein self-assembly was promoted with CAP treatment, which was also substantiated by SEM micrographs. The ROS/RNS produced in the CAP has been correlated with the protein self-assembly. This work will help to design protein self-assembled systems, and in the future, may bring possibilities of creating novel biomaterials with the help of plasma radiation. Self-assembly of proteins after CAP treatment.![]()
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Affiliation(s)
- Rakesh Ruchel Khanikar
- Biophysics – Physical Sciences Division, Institute of Advanced Study in Science and Technology, (An Autonomous Institute Under DST, Govt. of India), Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, Assam 781035, India
| | - Parismita Kalita
- Biophysics – Physical Sciences Division, Institute of Advanced Study in Science and Technology, (An Autonomous Institute Under DST, Govt. of India), Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, Assam 781035, India
| | - Monika Narzary
- Biophysics – Physical Sciences Division, Institute of Advanced Study in Science and Technology, (An Autonomous Institute Under DST, Govt. of India), Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, Assam 781035, India
| | - Deepjyoti Basumatary
- Biophysics – Physical Sciences Division, Institute of Advanced Study in Science and Technology, (An Autonomous Institute Under DST, Govt. of India), Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, Assam 781035, India
| | - Ashim Jyoti Bharati
- Biophysics – Physical Sciences Division, Institute of Advanced Study in Science and Technology, (An Autonomous Institute Under DST, Govt. of India), Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, Assam 781035, India
| | - Anurag Priyadarshi
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - R. Swaminathan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Heremba Bailung
- Biophysics – Physical Sciences Division, Institute of Advanced Study in Science and Technology, (An Autonomous Institute Under DST, Govt. of India), Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, Assam 781035, India
| | - Kamatchi Sankaranarayanan
- Biophysics – Physical Sciences Division, Institute of Advanced Study in Science and Technology, (An Autonomous Institute Under DST, Govt. of India), Vigyan Path, Paschim Boragaon, Garchuk, Guwahati, Assam 781035, India
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10
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Gómez-Méndez LD, Jiménez-Borrego LC, Pérez-Flórez A, Poutou-Piñales RA, Pedroza-Rodríguez AM, Salcedo-Reyes JC, Vargas A, Bogoya JM. LDPE Transformation by Exposure to Sequential Low-Pressure Plasma and TiO 2/UV Photocatalysis. Molecules 2021; 26:molecules26092513. [PMID: 33925792 PMCID: PMC8123516 DOI: 10.3390/molecules26092513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 04/04/2021] [Accepted: 04/08/2021] [Indexed: 11/16/2022] Open
Abstract
Low-density polyethylene (LDPE) sheets (3.0 ± 0.1 cm) received sequential treatment, first by the action of direct-current low-pressure plasma (DC-LPP) with a 100% oxygen partial pressure, 3.0 × 10−2 mbar pressure, 600 V DC tension, 5.6 cm distance, 6-min treatment. Then, sheets were submitted to TiO2 photocatalysis at UV radiation at 254 nm (TiO2/UV) with a pH value of 4.5 ± 0.2 and a TiO2 concentration of 1 gL−1. We achieved a complementary effect on the transformation of LDPE films. With the first treatment, ablation was generated, which increased hydrophilicity. With the second treatment, the cavities appeared. The changes in the LDPE sheets’ hydrophobicity were measured using the static contact angle (SCA) technique. The photocatalytic degradation curve at 400 h revealed that the DC-LPP photocatalysis sequential process decreased SCA by 82°. This was achieved by the incorporation of polar groups, which increased hydrophilicity, roughness, and rigidity by 12 and 38%, respectively. These sequential processes could be employed for LDPE and other material biodegradation pretreatment.
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Affiliation(s)
- Luis D. Gómez-Méndez
- Laboratorio de Microbiología Ambiental y Suelos, Grupo de Biotecnología Ambiental e Industrial (GBAI), Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110-23, DC, Colombia;
- Grupo de Películas Delgadas y Nanofotónica, Departamento de Física, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110-23, DC, Colombia; (L.C.J.-B.); (J.C.S.-R.)
- Correspondence:
| | - Luis C. Jiménez-Borrego
- Grupo de Películas Delgadas y Nanofotónica, Departamento de Física, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110-23, DC, Colombia; (L.C.J.-B.); (J.C.S.-R.)
| | - Alejandro Pérez-Flórez
- Grupo de Investigación en Fitoquímica (GIFUJ), Departamento de Química, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110-23, DC, Colombia;
| | - Raúl A. Poutou-Piñales
- Laboratorio de Biotecnología Molecular, Grupo de Biotecnología Ambiental e Industrial (GBAI), Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110-23, DC, Colombia;
| | - Aura M. Pedroza-Rodríguez
- Laboratorio de Microbiología Ambiental y Suelos, Grupo de Biotecnología Ambiental e Industrial (GBAI), Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110-23, DC, Colombia;
| | - Juan C. Salcedo-Reyes
- Grupo de Películas Delgadas y Nanofotónica, Departamento de Física, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110-23, DC, Colombia; (L.C.J.-B.); (J.C.S.-R.)
| | - Andrés Vargas
- Grupo de Física Matemática, Departamento de Matemáticas, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110-23, DC, Colombia;
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Al-Gunaid TA, Krupa I, Ouederni M, Krishnamoorthy SK, Popelka A. Enhancement of Adhesion Characteristics of Low-Density Polyethylene Using Atmospheric Plasma Initiated-Grafting of Polyethylene Glycol. Polymers (Basel) 2021; 13:1309. [PMID: 33923562 PMCID: PMC8073531 DOI: 10.3390/polym13081309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/10/2021] [Accepted: 04/12/2021] [Indexed: 11/17/2022] Open
Abstract
The low-density polyethylene/aluminum (LDPE/Al) joint in Tetra Pak provides stability and strength to food packaging, ensures protection against outside moisture, and maintains the nutritional values and flavors of food without the need for additives in the food products. However, a poor adhesion of LDPE to Al, due to its non-polar surface, is a limiting factor and extra polymeric interlayers or surface treatment is required. Plasma-assisted grafting of the LDPE surface with different molecular weight compounds of polyethylene glycol (PEG) was used to improve LDPE/Al adhesion. It was found that this surface modification contributed to significantly improve the wettability of the LDPE surface, as was confirmed by contact angle measurements. The chemical composition changes after plasma treatment and modification process were observed by X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). A surface morphology was analyzed by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Adhesion characteristics of LDPE/Al adhesive joints were analyzed by the peel tests. The most significant adhesion improvement of the PEG modified LDPE surface was achieved using 10.0 wt.% aqueous (6000 M) PEG solution, while the peel resistance increased by approximately 54 times in comparison with untreated LDPE.
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Affiliation(s)
- Taghreed Abdulhameed Al-Gunaid
- Center for Advanced Materials, Qatar University, P.O. Box 2713 Doha, Qatar; (T.A.A.-G.); (I.K.)
- Materials Science and Technology Program, College of Arts and Science, Qatar University, P.O. Box 2713 Doha, Qatar
| | - Igor Krupa
- Center for Advanced Materials, Qatar University, P.O. Box 2713 Doha, Qatar; (T.A.A.-G.); (I.K.)
| | - Mabrouk Ouederni
- Product Development & Innovation, Qatar Petrochemical Company (QAPCO), P.O. Box 756 Doha, Qatar; (M.O.); (S.K.K.)
| | - Senthil Kumar Krishnamoorthy
- Product Development & Innovation, Qatar Petrochemical Company (QAPCO), P.O. Box 756 Doha, Qatar; (M.O.); (S.K.K.)
| | - Anton Popelka
- Center for Advanced Materials, Qatar University, P.O. Box 2713 Doha, Qatar; (T.A.A.-G.); (I.K.)
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Hajiani S, Ghassempour A, Shokri B. Protein ion yield enhancement in matrix-assisted laser desorption/ionization mass spectrometry after sample and matrix low-pressure glow discharge plasma irradiation. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e8964. [PMID: 33002226 DOI: 10.1002/rcm.8964] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
RATIONALE Plasma-assisted ionization is widely used in mass spectrometry; in this study, a low-pressure glow discharge is introduced as a new method to improve the detection of large proteins, and bovine serum albumin (BSA) is used as a protein model. The treatment of analyte, matrix, and the matrix/analyte mixture is evaluated under optimal conditions. METHODS Low-pressure radio-frequency capacitively coupled plasma (RF-CCP) treatment is utilized in the sample preparation step of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) to enhance the protein MALDI ion signal. Plasma treatment can be an effective tool for enhancing the non-covalent binding of the analyte with the matrix, incorporation of the analyte into the matrix, production of matrix/analyte crystals, and analyte protonation through plasma activation, resulting in an improved MALDI ion signal. RESULTS Fourier-transform infrared (FTIR) spectroscopy allows us to distinguish between the functional groups of plasma-treated and control samples. In addition, optical emission spectroscopy (OES) determines the plasma species, and zeta potential analysis characterizes the potential difference between plasma-treated and control samples before MALDI-TOF MS analysis. Plasma-treated BSA can provide a five-times enhancement of ion intensity. The combination of the plasma-treated analyte with the plasma-treated matrix leads to an increase in the ion intensity by a factor of 14. CONCLUSIONS Low-pressure glow discharge plasma treatment greatly enhances MALDI ion signals, with a noticeable increase in incorporation, co-crystallization, protonation, and the concentration of the sample functional groups.
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Affiliation(s)
- Shahedeh Hajiani
- Department of Physics, Shahid Beheshti University, G.C., Evin, Tehran, Iran
| | - Alireza Ghassempour
- Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G.C., Evin, Tehran, Iran
| | - Babak Shokri
- Department of Physics, Shahid Beheshti University, G.C., Evin, Tehran, Iran
- Laser and Plasma Research Institute, Shahid Beheshti University, G.C., Evin, Tehran, Iran
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13
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Park SJ, Lee JH. Fabrication of high-performance reverse osmosis membranes via dual-layer slot coating with tailoring interfacial adhesion. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118449] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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14
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Study of High-Density Polyethylene (HDPE) Kinetics Modification Treated by Dielectric Barrier Discharge (DBD) Plasma. Polymers (Basel) 2020; 12:polym12102422. [PMID: 33096594 PMCID: PMC7590228 DOI: 10.3390/polym12102422] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/18/2020] [Accepted: 09/26/2020] [Indexed: 02/06/2023] Open
Abstract
In this work, the plasma was used in the dielectric barrier discharge (DBD) technique for modifying the high-density polyethylene (HDPE) surface. The treatments were performed via argon or oxygen, for 10 min, at a frequency of 820 Hz, voltage of 20 kV, 2 mm distance between electrodes, and atmospheric pressure. The efficiency of the plasma was determined through the triple Langmuir probe to check if it had enough energy to promote chemical changes on the material surface. Physicochemical changes were diagnosed through surface characterization techniques such as contact angle, attenuated total reflection to Fourier transform infrared spectroscopy (ATR-FTIR), X-ray excited photoelectron spectroscopy (XPS), and atomic force microscopy (AFM). Plasma electronics temperature showed that it has enough energy to break or form chemical bonds on the material surface, impacting its wettability directly. The wettability test was performed before and after treatment through the sessile drop, using distilled water, glycerin, and dimethylformamide, to the profile of surface tensions by the Fowkes method, analyzing the contact angle variation. ATR-FTIR and XPS analyses showed that groups and bonds were altered or generated on the surface when compared with the untreated sample. The AFM showed a change in roughness, and this directly affected the increase of wettability.
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15
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Tellers J, Zych A, Neuteboom P, Soliman M, Vachon J. Polyolefin copolymer PE-HEMA with increased metal adhesion properties. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109721] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Garcia-Garcia D, Crespo-Amorós JE, Parres F, Samper MD. Influence of Ultraviolet Radiation Exposure Time on Styrene-Ethylene-Butadiene-Styrene (SEBS) Copolymer. Polymers (Basel) 2020; 12:polym12040862. [PMID: 32283629 PMCID: PMC7240548 DOI: 10.3390/polym12040862] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 11/16/2022] Open
Abstract
The effect of ultraviolet radiation on styrene-ethylene-butadiene-styrene (SEBS) has been studied at different exposures times in order to obtain a better understanding of the mechanism of ageing. The polymer materials were mechanically tested and then their surfaces were analyzed using a scanning electron microscope (SEM) and atomic force microscopy (AFM). Moreover, the optical analysis of contact angle (OCA) was used to evaluate the surface energy (γs) and the yellowing index (YI) and attenuated total reflectance infrared spectroscopy (ATR-FTIR) were used to observe structural and physical changes in aging SEBS. The results obtained for the SEBS, in relation to the duration of exposure, showed superficial changes that cause a decrease in the surface energy (γs) and, therefore, a decrease in surface roughness. This led to a reduction in mechanical performance, decreasing the tensile strength by about 50% for exposure times of around 200 h.
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Lafleur SSD, Shen L, Kamphuis EJTW, Houben SJA, Balzano L, Severn JR, Schenning APHJ, Bastiaansen CWM. Optical Patterns on Drawn Polyethylene by Direct Laser Writing. Macromol Rapid Commun 2019; 40:e1800811. [DOI: 10.1002/marc.201800811] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/04/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Sarah S. D. Lafleur
- Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Lihua Shen
- Department of Mechanical EngineeringUniversity of Colorado Boulder CO 80309 USA
| | | | - Simon J. A. Houben
- Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | | | | | | | - Cees W. M. Bastiaansen
- Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
- Queen MaryUniversity of London London E1 4NS UK
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Abstract
Herein, low-density polyethylene (LDPE) films were treated using radio-frequency plasma discharge in the presence of air, nitrogen, oxygen, argon, and their mixtures to introduce new chemical functionalities. The surface properties of treated LDPE were qualitatively and quantitatively characterized using various analytical and microscopic techniques. It was found that the optimum plasma treatment for LDPE occurs in the presence of air plasma at an exposure time of 120 s and 80 W of nominal power. The plasma formed layer had tendency to increasing thickness with increasing treatment time up to 60 s using air and oxygen and even more with inert gases. An aging study of plasma-treated LDPE samples stored in ambient air or water medium revealed the partial hydrophobic recovery.
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Ecker M, Joshi-Imre A, Modi R, Frewin CL, Garcia-Sandoval A, Maeng J, Gutierrez-Heredia G, Pancrazio JJ, Voit WE. From softening polymers to multimaterial based bioelectronic devices. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/2399-7532/aaed58] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Liu X, Wang G, Liu J, Zhang J, Liu S, Wang C, Yang Z, Sun J, Song J. Influence of water addition on the modification of polyethylene surface by nitrogen atmospheric pressure plasma jet. J Appl Polym Sci 2018. [DOI: 10.1002/app.47136] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- X. Liu
- Key Laboratory for Precision and Non‐traditional Machining Technology of the Ministry of EducationDalian University of Technology Dalian 116024 People's Republic of China
- Collaborative Innovation Center of Major Machine Manufacturing in LiaoningDalian University of Technology Dalian 116024 People's Republic of China
| | - G. Wang
- Key Laboratory for Precision and Non‐traditional Machining Technology of the Ministry of EducationDalian University of Technology Dalian 116024 People's Republic of China
- Collaborative Innovation Center of Major Machine Manufacturing in LiaoningDalian University of Technology Dalian 116024 People's Republic of China
| | - J. Liu
- Key Laboratory for Precision and Non‐traditional Machining Technology of the Ministry of EducationDalian University of Technology Dalian 116024 People's Republic of China
- Collaborative Innovation Center of Major Machine Manufacturing in LiaoningDalian University of Technology Dalian 116024 People's Republic of China
| | - J. Zhang
- Key Laboratory for Precision and Non‐traditional Machining Technology of the Ministry of EducationDalian University of Technology Dalian 116024 People's Republic of China
- Collaborative Innovation Center of Major Machine Manufacturing in LiaoningDalian University of Technology Dalian 116024 People's Republic of China
| | - S. Liu
- Key Laboratory for Precision and Non‐traditional Machining Technology of the Ministry of EducationDalian University of Technology Dalian 116024 People's Republic of China
- Collaborative Innovation Center of Major Machine Manufacturing in LiaoningDalian University of Technology Dalian 116024 People's Republic of China
| | - C. Wang
- Key Laboratory for Precision and Non‐traditional Machining Technology of the Ministry of EducationDalian University of Technology Dalian 116024 People's Republic of China
- Collaborative Innovation Center of Major Machine Manufacturing in LiaoningDalian University of Technology Dalian 116024 People's Republic of China
| | - Z. Yang
- Key Laboratory for Precision and Non‐traditional Machining Technology of the Ministry of EducationDalian University of Technology Dalian 116024 People's Republic of China
- Collaborative Innovation Center of Major Machine Manufacturing in LiaoningDalian University of Technology Dalian 116024 People's Republic of China
| | - J. Sun
- Key Laboratory for Precision and Non‐traditional Machining Technology of the Ministry of EducationDalian University of Technology Dalian 116024 People's Republic of China
| | - J. Song
- Key Laboratory for Precision and Non‐traditional Machining Technology of the Ministry of EducationDalian University of Technology Dalian 116024 People's Republic of China
- Collaborative Innovation Center of Major Machine Manufacturing in LiaoningDalian University of Technology Dalian 116024 People's Republic of China
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Shen XC, Li DC, Sima XF, Cheng HY, Jiang H. The effects of environmental conditions on the enrichment of antibiotics on microplastics in simulated natural water column. ENVIRONMENTAL RESEARCH 2018; 166:377-383. [PMID: 29935450 DOI: 10.1016/j.envres.2018.06.034] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/27/2018] [Accepted: 06/14/2018] [Indexed: 06/08/2023]
Abstract
Concerns regarding the release of microplastics (MPs) into the environment led us to explore the relationship between the different environmental factors and physicochemical properties of MPs, as well as the change of interaction between MPs and organic pollutants. In this study, the effects of environmental factors (ageing conditions), such as pH, temperature, ionic strength, ageing time, and humic acid (HA) concentration, on the characteristics of MPs and their adsorption toward tetracycline (TC) were systematically investigated. The results showed that ageing factors such as pH, ionic strength, and temperature were found to have little impact on the adsorptive capacity of MPs for TC. However, MPs aged in HA solution exhibited a significant decreased adsorptive capacity for TC. HA, which has numerous functional groups, can cover the surface of MPs and change their hydrophobicity, thereby reducing the adsorption affinity to TC. The electrostatic repulsion between adsorbed HA and TC molecules may also decrease the adsorption of TC. In addition, the competing effect of HA for adsorption sites on the surface of MPs further reduces the adsorption of TC. The data presented in this work provide useful information for understanding the transfer of antibiotics by aged MPs, which is of fundamental importance to assess the environmental impact of MPs.
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Affiliation(s)
- Xian-Cheng Shen
- CAS Key Laboratory of Urban Pollutants Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - De-Chang Li
- CAS Key Laboratory of Urban Pollutants Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Xiao-Feng Sima
- CAS Key Laboratory of Urban Pollutants Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Hui-Yuan Cheng
- CAS Key Laboratory of Urban Pollutants Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Hong Jiang
- CAS Key Laboratory of Urban Pollutants Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
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22
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Surface Modification of Polymeric Scaffolds for Tissue Engineering Applications. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2018. [DOI: 10.1007/s40883-018-0050-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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23
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Ge RK, Wang JW, Zhang J, Ren H. UV-/moisture-curable silicone-modified poly(urethane–acrylate) adhesive for untreated PET substrate. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-2221-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Fang C, Jing Y, Zong Y, Lin Z. Preparation and characterization of fluorine-containing acrylic latex PSAs using a reactive surfactant. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.10.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Vishnuvarthanan M, Rajeswari N. Effect of mechanical, barrier and adhesion properties on oxygen plasma surface modified PP. INNOV FOOD SCI EMERG 2015. [DOI: 10.1016/j.ifset.2015.05.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Joyner (Melito) HS, Pernell CW, Daubert CR. Beyond surface selection: The impact of different methodologies on tribological measurements. J FOOD ENG 2014. [DOI: 10.1016/j.jfoodeng.2014.03.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Peng-Ubol T, Phinyocheep P, Daniel P, Panbangred W, Pilard JF, Thouand G, Durand-Thouand MJ. Plasma-treated polyethylene film: A smart material applied for Salmonella Typhimurium detection. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.08.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Novák I, Števiar M, Popelka A, Chodák I, Mosnáček J, Špírková M, Janigová I, Kleinová A, Sedliačik J, Šlouf M. Surface modification of polyethylene by diffuse barrier discharge plasma. POLYM ENG SCI 2012. [DOI: 10.1002/pen.23280] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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30
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Surface modification of PET films by atmospheric pressure plasma exposure with three reactive gas sources. Colloid Polym Sci 2012. [DOI: 10.1007/s00396-012-2600-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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31
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Popelka A, Novák I, Lehocký M, Chodák I, Sedliačik J, Gajtanska M, Sedliačiková M, Vesel A, Junkar I, Kleinová A, Špírková M, Bílek F. Anti-bacterial treatment of polyethylene by cold plasma for medical purposes. Molecules 2012; 17:762-85. [PMID: 22245943 PMCID: PMC6268539 DOI: 10.3390/molecules17010762] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 01/09/2012] [Accepted: 01/10/2012] [Indexed: 11/16/2022] Open
Abstract
Polyethylene (PE) is one of the most widely used polymers in many industrial applications. Biomedical uses seem to be attractive, with increasing interest. However, PE it prone to infections and its additional surface treatment is indispensable. An increase in resistance to infections can be achieved by treating PE surfaces with substances containing antibacterial groups such as triclosan (5-Chloro-2-(2,4-dichlorophenoxy)phenol) and chlorhexidine (1,1'-Hexamethylenebis[5-(4-chlorophenyl)biguanide]). This work has examined the impact of selected antibacterial substances immobilized on low-density polyethylene (LDPE) via polyacrylic acid (PAA) grafted on LDPE by low-temperature barrier discharge plasma. This LDPE surface treatment led to inhibition of Escherichia coli and Staphylococcus aureus adhesion; the first causes intestinal disease, peritonitis, mastitis, pneumonia, septicemia, the latter is the reason for wound and urinary tract infections.
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Affiliation(s)
- Anton Popelka
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava 45, Slovakia
| | - Igor Novák
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava 45, Slovakia
- Author to whom correspondence should be addressed; ; Tel.: +421-903-925-725
| | - Marián Lehocký
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Nad Ovčírnou 3685, 760 01 Zlín, Czech Republic
| | - Ivan Chodák
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava 45, Slovakia
| | - Ján Sedliačik
- Faculty of Wood Sciences and Technology, Technical University in Zvolen, T.G. Masaryka 2117/24, 960 53 Zvolen, Slovakia
| | - Milada Gajtanska
- Faculty of Wood Sciences and Technology, Technical University in Zvolen, T.G. Masaryka 2117/24, 960 53 Zvolen, Slovakia
| | - Mariana Sedliačiková
- Faculty of Wood Sciences and Technology, Technical University in Zvolen, T.G. Masaryka 2117/24, 960 53 Zvolen, Slovakia
| | - Alenka Vesel
- Plasma Laboratory, Department of Surface Engineering, Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia
| | - Ita Junkar
- Plasma Laboratory, Department of Surface Engineering, Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia
| | - Angela Kleinová
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava 45, Slovakia
| | - Milena Špírková
- Institute of Macromolecular Chemistry AS CR, v. v. i, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - František Bílek
- Polymer Centre, Faculty of Technology, Tomas Bata University in Zlín, T.G.M Sq. 275, 762 72 Zlín, Czech Republic
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Li M, Zheng Z, Liu S, Su Y, Wei W, Wang X. Polyurethane (urea)/polyacrylates interpenetrating polymer network (IPN) adhesives for low surface energy materials. POLYM ADVAN TECHNOL 2011. [DOI: 10.1002/pat.2019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Minrui Li
- Department of Polymer Science and Engineering, State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Zhen Zheng
- Department of Polymer Science and Engineering, State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Shujuan Liu
- Department of Polymer Science and Engineering, State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Yuezeng Su
- School of Aeronautics and Astronautics; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Wei Wei
- Department of Polymer Science and Engineering, State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Xinling Wang
- Department of Polymer Science and Engineering, State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; Shanghai 200240 China
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33
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Effect of Low Pressure Nitrogen–Oxygen (N2/O2) Plasma Treatment on Surface Properties of Polypropylene Films. JOURNAL OF FUSION ENERGY 2010. [DOI: 10.1007/s10894-010-9334-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Agirre A, Nase J, Degrandi E, Creton C, Asua JM. Improving adhesion of acrylic waterborne PSAs to low surface energy materials: Introduction of stearyl acrylate. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24300] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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35
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Kasanen J, Suvanto M, Pakkanen TT. Improved adhesion of TiO2-based multilayer coating on HDPE and characterization of photocatalysis. J Appl Polym Sci 2010. [DOI: 10.1002/app.32948] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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36
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Gonzalez E, Hicks RF. Surface analysis of polymers treated by remote atmospheric pressure plasma. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:3710-3719. [PMID: 19950952 DOI: 10.1021/la9032018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The surfaces of high-density polyethylene (HDPE), poly(methyl methacrylate) (PMMA), and polyethersulfone (PES) were treated with a low-temperature, atmospheric pressure oxygen and helium plasma. The polymers were exposed to the downstream afterglow of the plasma, which contained primarily oxygen atoms and metastable oxygen molecules ((1)Delta(g) O(2)), and no ions or electrons. X-ray photoelectron spectroscopy (XPS) of HDPE revealed that 20% of the carbon atoms were converted into oxidized functional groups, with about half of these being carboxylic acids. Attenuated total reflection infrared spectroscopy of all three polymers was obtained in order to determine the types of functional groups formed by atmospheric plasma exposure. It was found that the polymers were rapidly oxidized with addition of alcohols, ketones, and carboxylic acids to the carbon backbone. Chain scission occurred on HDPE and PMMA, while on PES the aromatic groups underwent ring-opening and insertion of carboxylic acid.
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Affiliation(s)
- Eleazar Gonzalez
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, USA
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37
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Olifirenko AS, Novak I, Rozova EY, Saprykina NN, Mitilineos AG, Elyashevich GK. Hydrophilization of porous polyethylene films by cold plasma of different types. POLYMER SCIENCE SERIES B 2009. [DOI: 10.1134/s1560090409070070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Padron-Wells G, Jarvis BC, Jindal A, Goeckner M. Understanding the synthesis of DEGVE pulsed plasmas for application to ultra thin biocompatible interfaces. Colloids Surf B Biointerfaces 2009; 68:163-70. [DOI: 10.1016/j.colsurfb.2008.09.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2008] [Revised: 09/22/2008] [Accepted: 09/30/2008] [Indexed: 11/25/2022]
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40
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Navarro A, del Río C, Acosta JL. Pore‐filling electrolyte membranes based on microporous polyethylene matrices activated with plasma and sulfonated hydrogenated styrene butadiene block copolymer. Synthesis, microstructural and electrical characterization. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/polb.21505] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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41
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Novák I, Elyashevich G, Chodák I, Olifirenko A, Števiar M, Špírková M, Saprykina N, Vlasova E, Kleinová A. Polymer matrix of polyethylene porous films functionalized by electrical discharge plasma. Eur Polym J 2008. [DOI: 10.1016/j.eurpolymj.2008.05.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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42
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De Geyter N, Morent R, Leys C. Surface characterization of plasma-modified polyethylene by contact angle experiments and ATR-FTIR spectroscopy. SURF INTERFACE ANAL 2008. [DOI: 10.1002/sia.2611] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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43
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Surface properties and adhesion of wood fiber reinforced thermoplastic composites. Colloids Surf A Physicochem Eng Asp 2007. [DOI: 10.1016/j.colsurfa.2007.03.002] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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44
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Novák I, Števiar M, Chodák I, Krupa I, Nedelčev T, Špírková M, Chehimi MM, Mosnáček J, Kleinová A. Study of adhesion and surface properties of low-density poly(ethylene) pre-treated by cold discharge plasma. POLYM ADVAN TECHNOL 2007. [DOI: 10.1002/pat.805] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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45
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Sanchis RM, Calvo O, Sánchez L, García D, Balart R. Enhancement of wettability in low density polyethylene films using low pressure glow discharge N2 plasma. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/polb.21246] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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46
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Almazán-Almazán MC, Paredes JI, Pérez-Mendoza M, Domingo-García M, López-Garzón FJ, Martínez-Alonso A, Tascón JMD. Effects of oxygen and carbon dioxide plasmas on the surface of poly(ethylene terephthalate). J Colloid Interface Sci 2006; 287:57-66. [PMID: 15914148 DOI: 10.1016/j.jcis.2005.01.072] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2004] [Revised: 01/11/2005] [Accepted: 01/24/2005] [Indexed: 10/25/2022]
Abstract
Poly(ethylene terephthalate) was exposed to oxygen and carbon dioxide plasmas for different periods of time. The surface-modified samples were characterized by infrared spectroscopy, atomic force microscopy, and inverse gas-solid chromatography. The main difference between both types of plasma was connected to the time scale of degradation, which was much faster when using oxygen plasma. Aggregate globular features were produced by different treatments due to chain scission and further recombination of evolved products. Oxygenated functionalities were introduced in significant amounts after long exposure times to the oxygen plasma. As a consequence, the specific component of the surface free energy was clearly observed to increase after these long treatments.
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Sanchis M, Blanes V, Blanes M, Garcia D, Balart R. Surface modification of low density polyethylene (LDPE) film by low pressure O2 plasma treatment. Eur Polym J 2006. [DOI: 10.1016/j.eurpolymj.2006.02.001] [Citation(s) in RCA: 210] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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48
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Surface Energy and Adhesive Properties of Polyamide 12 Modified by Barrier and Radio-Frequency Discharge Plasma. MONATSHEFTE FUR CHEMIE 2006. [DOI: 10.1007/s00706-006-0492-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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49
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Almazán-Almazán MC, Paredes JI, Pérez-Mendoza M, Domingo-García M, López-Garzón FJ, Martínez-Alonso A, Tascón JMD. Surface characterisation of plasma-modified poly(ethylene terephthalate). J Colloid Interface Sci 2006; 293:353-63. [PMID: 16081090 DOI: 10.1016/j.jcis.2005.06.073] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2005] [Revised: 06/07/2005] [Accepted: 06/27/2005] [Indexed: 11/17/2022]
Abstract
This paper reports the modifications produced by nitrogen and helium cold plasmas on the surface of PET. The changes have been studied by diffuse reflectance Fourier transform spectroscopy (DRIFTS), atomic force microscopy (AFM) and inverse gas-solid chromatography (IGSC). Nitrogen and oxygen atoms seem to appear on the surface of PET as a consequence of the exposure to the atmosphere after the treatments with plasmas. AFM shows that both plasmas altered in different extent the surface of PET as they break the polymer chains producing low molecular products which appear as bumps on the surface. The surface area and the porosity of PET does not change by plasma treatments even after 15 min. The dispersive component of the surface free energy, gamma(s)(d), decreases after long treatments with nitrogen plasma whereas it remains almost unchanged after long treatment with helium plasma.
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50
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Application of radio frequency glow discharge plasma for enhancing adhesion bonds in polymer/polymer joints. J Appl Polym Sci 2006. [DOI: 10.1002/app.24081] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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