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Anjum S, Gupta A, Kumari S, Gupta B. Preparation and biological characterization of plasma functionalized poly(ethylene terephthalate) antimicrobial sutures. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1655748] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sadiya Anjum
- Department of Textile Technology, Bioengineering Laboratory, Indian Institute of Technology, New Delhi, India
| | - Amlan Gupta
- Department of Pathology, Sikkim Manipal Institute of Medical Sciences, Sikkim Manipal University, Gangtok, India
| | - Shanti Kumari
- Department of Textile Technology, Bioengineering Laboratory, Indian Institute of Technology, New Delhi, India
| | - Bhuvanesh Gupta
- Department of Textile Technology, Bioengineering Laboratory, Indian Institute of Technology, New Delhi, India
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Anjum S, Gupta B. Bioengineering of Functional Nanosilver Nanogels for Smart Healthcare Systems. GLOBAL CHALLENGES (HOBOKEN, NJ) 2018; 2:1800044. [PMID: 31565309 PMCID: PMC6607363 DOI: 10.1002/gch2.201800044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 07/07/2018] [Indexed: 05/14/2023]
Abstract
Functional designing of nanogels has become an attractive domain of biomedical engineering to develop bioactive materials with innovative features for the human healthcare system. Nanosilver has attracted enormous attention due to its wide antimicrobial spectrum and ability to kill almost all types of bacteria in its vicinity. However, the most crucial challenge for bioscientists is the lack of binding ability of nanosilver with the material surfaces that allow nanosilver to leach out to the surrounding tissue and exert toxicity while the biomaterial is in contact with the living system. Designing nanosilver within a nanogel confinement offers enormous possibilities to develop functional bioactive nanoparticles that may be bonded to any biomaterial surface via the nanogel functionality. This approach requires the proper combination of material science with nanotechnology and biotechnology to innovate interesting domain of functional nanogels with unique features. This work aims at providing a critical review on the current progress, approaches, and vision in designing nanosilver-entrapped nanogel particles with diverse functionality, and their bioactivity against microorganisms for human healthcare devices.
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Affiliation(s)
- Sadiya Anjum
- Bioengineering LaboratoryDepartment of Textile TechnologyIndian Institute of TechnologyNew Delhi110016India
| | - Bhuvanesh Gupta
- Bioengineering LaboratoryDepartment of Textile TechnologyIndian Institute of TechnologyNew Delhi110016India
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Abdel-Khalek H, El-Samahi MI, El-Mahalawy AM. Plasma impact on structural, morphological and optical properties of copper acetylacetonate thin films. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 199:356-366. [PMID: 29635180 DOI: 10.1016/j.saa.2018.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 04/01/2018] [Accepted: 04/02/2018] [Indexed: 06/08/2023]
Abstract
The influence of plasma exposure on structural, morphological and optical properties of copper (II) acetylacetonate thin films deposited by thermal evaporation technique was investigated. Copper (II) acetylacetonate as-grown thin films were exposed to the atmospheric plasma for different times. The exposure of as-grown cu(acac)2 thin film to atmospheric plasma for 5min modified its structural, morphological and optical properties. The effect of plasma exposure on structure and roughness of cu(acac)2 thin films was evaluated by XRD and AFM techniques, respectively. The XRD results showed an increment in crystallinity due to exposure for 5min, but, when the exposure time reaches 10min, the film was transformed to an amorphous state. The AFM results revealed a strong modification of films roughness when the average roughness decreased from 63.35nm to ~1nm as a result of interaction with plasma. The optical properties of as-grown and plasma exposured cu(acac)2 thin films were studied using spectrophotometric method. The exposure of cu(acac)2 thin films to plasma produced the indirect energy gap decrease from 3.20eV to 2.67eV for 10min exposure time. The dispersion parameters were evaluated in terms of single oscillator model for as-grown and plasma exposured thin films. The influence of plasma exposure on third order optical susceptibility was studied.
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Affiliation(s)
- H Abdel-Khalek
- Thin Film Laboratory, Physics Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
| | - M I El-Samahi
- Thin Film Laboratory, Physics Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
| | - Ahmed M El-Mahalawy
- Thin Film Laboratory, Physics Department, Faculty of Science, Suez Canal University, Ismailia, Egypt.
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Alemán-Domínguez ME, Ortega Z, Benítez AN, Vilariño-Feltrer G, Gómez-Tejedor JA, Vallés-Lluch A. Tunability of polycaprolactone hydrophilicity by carboxymethyl cellulose loading. J Appl Polym Sci 2017. [DOI: 10.1002/app.46134] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- M. E. Alemán-Domínguez
- Departamento de Ingeniería de Procesos; Universidad de Las Palmas de Gran Canaria, Edificio de Fabricación Integrada, Parque científico-tecnológico de la ULPGC; Las Palmas Spain
| | - Z. Ortega
- Departamento de Ingeniería de Procesos; Universidad de Las Palmas de Gran Canaria, Edificio de Fabricación Integrada, Parque científico-tecnológico de la ULPGC; Las Palmas Spain
| | - A. N. Benítez
- Departamento de Ingeniería de Procesos; Universidad de Las Palmas de Gran Canaria, Edificio de Fabricación Integrada, Parque científico-tecnológico de la ULPGC; Las Palmas Spain
| | - G. Vilariño-Feltrer
- Centre for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de Valencia; València Spain
| | - J. A. Gómez-Tejedor
- Centre for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de Valencia; València Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Valencia Spain
| | - A. Vallés-Lluch
- Centre for Biomaterials and Tissue Engineering (CBIT); Universitat Politècnica de Valencia; València Spain
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Khelifa F, Ershov S, Habibi Y, Snyders R, Dubois P. Free-Radical-Induced Grafting from Plasma Polymer Surfaces. Chem Rev 2016; 116:3975-4005. [PMID: 26943005 DOI: 10.1021/acs.chemrev.5b00634] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
With the advances in science and engineering in the second part of the 20th century, emerging plasma-based technologies continuously find increasing applications in the domain of polymer chemistry, among others. Plasma technologies are predominantly used in two different ways: for the treatment of polymer substrates by a reactive or inert gas aiming at a specific surface functionalization or for the synthesis of a plasma polymer with a unique set of properties from an organic or mixed organic-inorganic precursor. Plasma polymer films (PPFs), often deposited by plasma-enhanced chemical vapor deposition (PECVD), currently attract a great deal of attention. Such films are widely used in various fields for the coating of solid substrates, including membranes, semiconductors, metals, textiles, and polymers, because of a combination of interesting properties such as excellent adhesion, highly cross-linked structures, and the possibility of tuning properties by simply varying the precursor and/or the synthesis parameters. Among the many appealing features of plasma-synthesized and -treated polymers, a highly reactive surface, rich in free radicals arising from deposition/treatment specifics, offers a particular advantage. When handled carefully, these reactive free radicals open doors to the controllable surface functionalization of materials without affecting their bulk properties. The goal of this review is to illustrate the increasing application of plasma-based technologies for tuning the surface properties of polymers, principally through free-radical chemistry.
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Affiliation(s)
- Farid Khelifa
- University of Mons (UMONS) , Institute of Research in Science and Engineering of Materials, Place du Parc, 23, 7000 Mons, Belgium
| | - Sergey Ershov
- University of Mons (UMONS) , Institute of Research in Science and Engineering of Materials, Place du Parc, 23, 7000 Mons, Belgium.,Materials Research and Technology Department (MRT), Luxembourg Institute of Science and Technology (LIST) , Rue du Brill 41, 4422 Belvaux, Luxembourg
| | - Youssef Habibi
- Materials Research and Technology Department (MRT), Luxembourg Institute of Science and Technology (LIST) , Rue du Brill 41, 4422 Belvaux, Luxembourg
| | - Rony Snyders
- University of Mons (UMONS) , Institute of Research in Science and Engineering of Materials, Place du Parc, 23, 7000 Mons, Belgium
| | - Philippe Dubois
- University of Mons (UMONS) , Institute of Research in Science and Engineering of Materials, Place du Parc, 23, 7000 Mons, Belgium.,Materials Research and Technology Department (MRT), Luxembourg Institute of Science and Technology (LIST) , Rue du Brill 41, 4422 Belvaux, Luxembourg
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