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Naeem M, Felipe MBMC, Medeiros SRB, Costa T, Libório MS, Alves C, Nascimento RM, Nascimento IO, Sousa RRM, Feitor MC. Novel antibacterial silver coating on
PET fabric assisted
with
hollow‐cathode
glow discharge. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- M. Naeem
- Department of Physics Women University of Azad Jammu and Kashmir Rawalpindi Pakistan
| | - M. B. M. C. Felipe
- Laboratório de Mutagênese Ambiental, Bioscience Center Federal University of Rio Grande do Norte Natal Brazil
| | - S. R. B. Medeiros
- Department of Cellular Biology and Genetics, Bioscience Center Federal University of Rio Grande do Norte Natal Brazil
| | - T.H.C. Costa
- Postgraduate Mechanical Engineering–Federal University of Rio Grande do Norte Natal Brazil
| | - M. S. Libório
- Postgraduate Mechanical Engineering–Federal University of Rio Grande do Norte Natal Brazil
| | - C. Alves
- Postgraduate Mechanical Engineering–Federal University of Rio Grande do Norte Natal Brazil
| | - R. M. Nascimento
- Postgraduate Mechanical Engineering–Federal University of Rio Grande do Norte Natal Brazil
| | - I. O. Nascimento
- Postgraduate Mechanical Engineering–Federal University of Rio Grande do Norte Natal Brazil
| | - R. R. M. Sousa
- Postgraduate Materias Science and Engineering–Federal University of Piauí, UFPI Teresina Brazil
| | - M. C. Feitor
- Postgraduate Mechanical Engineering–Federal University of Rio Grande do Norte Natal Brazil
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2
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Wani IA, Ahmad T. Understanding Toxicity of Nanomaterials in Biological Systems. PHARMACEUTICAL SCIENCES 2017. [DOI: 10.4018/978-1-5225-1762-7.ch057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Nanotechnology is a growing applied science having considerable global socioeconomic value. Nanoscale materials are casting their impact on almost all industries and all areas of society. A wide range of engineered nanoscale products has emerged with widespread applications in fields such as energy, medicine, electronics, plastics, energy and aerospace etc. While the market for nanotechnology products will have grown over one trillion US dollars by 2015, the presence of these material is likely to increase leading to increasing likelihood of exposure. The direct use of nanomaterials in humans for medical and cosmetic purposes dictates vigorous safety assessment of toxicity. Therefore this book chapter provides the detailed toxicity assessment of various types of nanomaterials.
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Colak BY, Peynichou P, Galland S, Oulahal N, Prochazka F, Degraeve P. Antimicrobial Activity of Nisin and Natamycin Incorporated Sodium Caseinate Extrusion-Blown Films: A Comparative Study with Heat-Pressed/Solution Cast Films. J Food Sci 2016; 81:E1141-50. [DOI: 10.1111/1750-3841.13284] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 02/17/2016] [Accepted: 02/23/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Basak Yilin Colak
- Univ. de Lyon; Université Jean Monnet, CNRS UMR (Joined Research Unit) 5223, Ingénierie des Matériaux Polymères; 23 rue Paul Michelon. F-42023 Saint-Etienne France
- Univ. de Lyon, Univ. Claude Bernard Lyon 1 , ISARA Lyon, Laboratoire de Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733); IUT Lyon 1 site de Bourg en Bresse, technopole Alimentec, rue Henri de Boissieu, F-01000; Bourg en Bresse France
- Univ. de Saint-Etienne; F-42023 Saint-Etienne France
- Univ. de Lyon, Univ. Claude Bernard Lyon 1 - ISARA Lyon, Laboratoire de Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733); IUT Lyon 1 site de Bourg en Bresse, technopole Alimentec, rue Henri de Boissieu; F-01000 Bourg en Bresse France
| | - Pierre Peynichou
- Univ. de Lyon, Univ. Claude Bernard Lyon 1 , ISARA Lyon, Laboratoire de Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733); IUT Lyon 1 site de Bourg en Bresse, technopole Alimentec, rue Henri de Boissieu, F-01000; Bourg en Bresse France
- Univ. de Lyon, Univ. Claude Bernard Lyon 1 - ISARA Lyon, Laboratoire de Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733); IUT Lyon 1 site de Bourg en Bresse, technopole Alimentec, rue Henri de Boissieu; F-01000 Bourg en Bresse France
| | - Sophie Galland
- Univ. de Lyon, Univ. Claude Bernard Lyon 1 , ISARA Lyon, Laboratoire de Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733); IUT Lyon 1 site de Bourg en Bresse, technopole Alimentec, rue Henri de Boissieu, F-01000; Bourg en Bresse France
- Univ. de Lyon, Univ. Claude Bernard Lyon 1 - ISARA Lyon, Laboratoire de Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733); IUT Lyon 1 site de Bourg en Bresse, technopole Alimentec, rue Henri de Boissieu; F-01000 Bourg en Bresse France
| | - Nadia Oulahal
- Univ. de Lyon, Univ. Claude Bernard Lyon 1 , ISARA Lyon, Laboratoire de Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733); IUT Lyon 1 site de Bourg en Bresse, technopole Alimentec, rue Henri de Boissieu, F-01000; Bourg en Bresse France
- Univ. de Lyon, Univ. Claude Bernard Lyon 1 - ISARA Lyon, Laboratoire de Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733); IUT Lyon 1 site de Bourg en Bresse, technopole Alimentec, rue Henri de Boissieu; F-01000 Bourg en Bresse France
| | - Frédéric Prochazka
- Univ. de Lyon; Université Jean Monnet, CNRS UMR (Joined Research Unit) 5223, Ingénierie des Matériaux Polymères; 23 rue Paul Michelon. F-42023 Saint-Etienne France
- Univ. de Saint-Etienne; F-42023 Saint-Etienne France
| | - Pascal Degraeve
- Univ. de Lyon, Univ. Claude Bernard Lyon 1 , ISARA Lyon, Laboratoire de Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733); IUT Lyon 1 site de Bourg en Bresse, technopole Alimentec, rue Henri de Boissieu, F-01000; Bourg en Bresse France
- Univ. de Lyon, Univ. Claude Bernard Lyon 1 - ISARA Lyon, Laboratoire de Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733); IUT Lyon 1 site de Bourg en Bresse, technopole Alimentec, rue Henri de Boissieu; F-01000 Bourg en Bresse France
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4
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Kavitha Sankar PC, Ramakrishnan R, Rosemary MJ. Biological evaluation of nanosilver incorporated cellulose pulp for hygiene products. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 61:631-7. [PMID: 26838891 DOI: 10.1016/j.msec.2015.12.072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 12/03/2015] [Accepted: 12/28/2015] [Indexed: 10/22/2022]
Abstract
Cellulose pulp has a visible market share in personal hygiene products such as sanitary napkins and baby diapers. However it offers good surface for growth of microorganisms. Huge amount of research is going on in developing hygiene products that do not initiate microbial growth. The objective of the present work is to produce antibacterial cellulose pulp by depositing silver nanopowder on the cellulose fiber. The silver nanoparticles used were of less than 100 nm in size and were characterised using transmission electron microscopy and X-ray powder diffraction studies. Antibacterial activity of the functionalized cellulose pulp was proved by JIS L 1902 method. The in-vitro cytotoxicity, in-vivo vaginal irritation and intracutaneous reactivity studies were done with silver nanopowder incorporated cellulose pulp for introducing a new value added product to the market. Cytotoxicity evaluation suggested that the silver nanoparticle incorporated cellulose pulp is non-cytotoxic. No irritation and skin sensitization were identified in animals tested with specific extracts prepared from the test material in the in-vivo experiments. The results indicated that the silver nanopowder incorporated cellulose pulp meets the requirements of the standard practices recommended for evaluating the biological reactivity and has good biocompatibility, hence can be classified as a safe hygiene product.
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Affiliation(s)
- P C Kavitha Sankar
- Corporate R & D Centre, HLL Lifecare Ltd., Akkulam, Sreekariyam P.O., Thiruvananthapuram 695 017, Kerala, India
| | - Reshmi Ramakrishnan
- Corporate R & D Centre, HLL Lifecare Ltd., Akkulam, Sreekariyam P.O., Thiruvananthapuram 695 017, Kerala, India
| | - M J Rosemary
- Corporate R & D Centre, HLL Lifecare Ltd., Akkulam, Sreekariyam P.O., Thiruvananthapuram 695 017, Kerala, India.
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5
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Trinh NTT, Lejmi R, Gharsallaoui A, Dumas E, Degraeve P, Thanh ML, Oulahal N. Effect of emulsification and spray-drying microencapsulation on the antilisterial activity of transcinnamaldehyde. J Microencapsul 2015; 32:719-23. [PMID: 26398167 DOI: 10.3109/02652048.2015.1010460] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Spray-dried redispersible transcinnamaldehyde (TC)-in-water emulsions were prepared in order to preserve its antibacterial activity; 5% (w/w) TC emulsions were first obtained with a rotor-stator homogeniser in the presence of either soybean lecithin or sodium caseinate as emulsifiers. These emulsions were mixed with a 30% (w/w) maltodextrin solution before feeding a spray-dryer. The antibacterial activity of TC alone, TC emulsions with and without maltodextrin before and after spray-drying were assayed by monitoring the growth at 30 °C of Listeria innocua in their presence and in their absence (control). Whatever the emulsifier used, antilisterial activity of TC was increased following its emulsification. However, reconstituted spray-dried emulsions stabilised by sodium caseinate had a higher antibacterial activity suggesting that they better resisted to spray-drying. This was consistent with observation that microencapsulation efficiencies were 27.6% and 78.7% for emulsions stabilised by lecithin and sodium caseinate, respectively.
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Affiliation(s)
- Nga-Thi-Thanh Trinh
- a Laboratoire BioDyMIA (Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires) , Equipe Mixte d'Accueil n 3733, IUT Lyon 1, Technopole Alimentec - Rue Henri de Boissieu, Université de Lyon, Université Claude Bernard Lyon 1 - ISARA Lyon , Bourg en Bresse , France and.,b Ecole de Biotechnologie et Technologie Alimentaire, Institut Polytechnique de Hanoi , Hanoi , Vietnam
| | - Raja Lejmi
- a Laboratoire BioDyMIA (Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires) , Equipe Mixte d'Accueil n 3733, IUT Lyon 1, Technopole Alimentec - Rue Henri de Boissieu, Université de Lyon, Université Claude Bernard Lyon 1 - ISARA Lyon , Bourg en Bresse , France and
| | - Adem Gharsallaoui
- a Laboratoire BioDyMIA (Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires) , Equipe Mixte d'Accueil n 3733, IUT Lyon 1, Technopole Alimentec - Rue Henri de Boissieu, Université de Lyon, Université Claude Bernard Lyon 1 - ISARA Lyon , Bourg en Bresse , France and
| | - Emilie Dumas
- a Laboratoire BioDyMIA (Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires) , Equipe Mixte d'Accueil n 3733, IUT Lyon 1, Technopole Alimentec - Rue Henri de Boissieu, Université de Lyon, Université Claude Bernard Lyon 1 - ISARA Lyon , Bourg en Bresse , France and
| | - Pascal Degraeve
- a Laboratoire BioDyMIA (Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires) , Equipe Mixte d'Accueil n 3733, IUT Lyon 1, Technopole Alimentec - Rue Henri de Boissieu, Université de Lyon, Université Claude Bernard Lyon 1 - ISARA Lyon , Bourg en Bresse , France and
| | - Mai Le Thanh
- b Ecole de Biotechnologie et Technologie Alimentaire, Institut Polytechnique de Hanoi , Hanoi , Vietnam
| | - Nadia Oulahal
- a Laboratoire BioDyMIA (Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires) , Equipe Mixte d'Accueil n 3733, IUT Lyon 1, Technopole Alimentec - Rue Henri de Boissieu, Université de Lyon, Université Claude Bernard Lyon 1 - ISARA Lyon , Bourg en Bresse , France and
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Wang P, Deng C, Yuan J, Yu Y, Cui L, Su M, Wang Q, Fan X. Preparation of antibacterial silk fibroin membranes via tyrosinase-catalyzed coupling of ε-polylysine. Biotechnol Appl Biochem 2015; 63:163-9. [DOI: 10.1002/bab.1365] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Accepted: 03/05/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Ping Wang
- Key Laboratory of Science and Technology of Eco-Textile; Ministry of Education, Jiangnan University; Wuxi People's Republic of China
| | - Chao Deng
- Wuxi Medical School; Jiangnan University; Wuxi People's Republic of China
| | - Jiugang Yuan
- Key Laboratory of Science and Technology of Eco-Textile; Ministry of Education, Jiangnan University; Wuxi People's Republic of China
| | - Yuanyuan Yu
- Key Laboratory of Science and Technology of Eco-Textile; Ministry of Education, Jiangnan University; Wuxi People's Republic of China
| | - Li Cui
- Key Laboratory of Science and Technology of Eco-Textile; Ministry of Education, Jiangnan University; Wuxi People's Republic of China
| | - Mengting Su
- Key Laboratory of Science and Technology of Eco-Textile; Ministry of Education, Jiangnan University; Wuxi People's Republic of China
| | - Qiang Wang
- Key Laboratory of Science and Technology of Eco-Textile; Ministry of Education, Jiangnan University; Wuxi People's Republic of China
| | - Xuerong Fan
- Key Laboratory of Science and Technology of Eco-Textile; Ministry of Education, Jiangnan University; Wuxi People's Republic of China
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7
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Shahid-ul-Islam, Mohammad F. High-Energy Radiation Induced Sustainable Coloration and Functional Finishing of Textile Materials. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b00524] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shahid-ul-Islam
- Department of Chemistry, Jamia Millia Islamia (A Central University), New Delhi, 110025, India
| | - Faqeer Mohammad
- Department of Chemistry, Jamia Millia Islamia (A Central University), New Delhi, 110025, India
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8
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Trinh NTT, Dumas E, Thanh ML, Degraeve P, Amara CB, Gharsallaoui A, Oulahal N. Effect of a VietnameseCinnamomum cassiaessential oil and its major componenttrans-cinnamaldehyde on the cell viability, membrane integrity, membrane fluidity, and proton motive force ofListeria innocua. Can J Microbiol 2015; 61:263-71. [DOI: 10.1139/cjm-2014-0481] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The antibacterial mechanism of a Cinnamomum cassia essential oil from Vietnam and of its main component (trans-cinnamaldehyde, 90% (m/m) of C. cassia essential oil) against a Listeria innocua strain was investigated to estimate their potential for food preservation. In the presence of C. cassia essential oil or trans-cinnamaldehyde at their minimal bactericidal concentration (2700 μg·mL–1), L. innocua cells fluoresced green after staining with Syto9® and propidium iodide, as observed by epifluorescence microscopy, suggesting that the perturbation of membrane did not cause large pore formation and cell lysis but may have introduced the presence of viable but nonculturable bacteria. Moreover, the fluidity, potential, and intracellular pH of the cytoplasmic membrane were perturbed in the presence of the essential oil or trans-cinnamaldehyde. However, these membrane perturbations were less severe in the presence of trans-cinnamaldehyde than in the presence of multicomponent C. cassia essential oil. This indicates that in addition to trans-cinnamaldehyde, other minor C. cassia essential oil components play a major role in its antibacterial activity against L. innocua cells.
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Affiliation(s)
- Nga-Thi-Thanh Trinh
- Université de Lyon, Université Claude Bernard Lyon 1 – ISARA Lyon, Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA No. 3733), IUT Lyon 1 site de Bourg en Bresse – Technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France
- Ecole de Biotechnologie et Technologie Alimentaire, Institut Polytechnique de Hanoi, Vietnam, No. 1, rue Dai Co Viet, Hai Ba Trung, 10000, Ha Noi, Viet Nam
| | - Emilie Dumas
- Université de Lyon, Université Claude Bernard Lyon 1 – ISARA Lyon, Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA No. 3733), IUT Lyon 1 site de Bourg en Bresse – Technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France
| | - Mai Le Thanh
- Ecole de Biotechnologie et Technologie Alimentaire, Institut Polytechnique de Hanoi, Vietnam, No. 1, rue Dai Co Viet, Hai Ba Trung, 10000, Ha Noi, Viet Nam
| | - Pascal Degraeve
- Université de Lyon, Université Claude Bernard Lyon 1 – ISARA Lyon, Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA No. 3733), IUT Lyon 1 site de Bourg en Bresse – Technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France
| | - Chedia Ben Amara
- Université de Lyon, Université Claude Bernard Lyon 1 – ISARA Lyon, Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA No. 3733), IUT Lyon 1 site de Bourg en Bresse – Technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France
| | - Adem Gharsallaoui
- Université de Lyon, Université Claude Bernard Lyon 1 – ISARA Lyon, Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA No. 3733), IUT Lyon 1 site de Bourg en Bresse – Technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France
| | - Nadia Oulahal
- Université de Lyon, Université Claude Bernard Lyon 1 – ISARA Lyon, Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA No. 3733), IUT Lyon 1 site de Bourg en Bresse – Technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France
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Chen YH, Wu GW, He JL. Antimicrobial brass coatings prepared on poly(ethylene terephthalate) textile by high power impulse magnetron sputtering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 48:41-7. [DOI: 10.1016/j.msec.2014.11.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 06/05/2014] [Accepted: 11/06/2014] [Indexed: 10/24/2022]
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10
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Léonard L, Beji O, Arnould C, Noirot E, Bonnotte A, Gharsallaoui A, Degraeve P, Lherminier J, Saurel R, Oulahal N. Preservation of viability and anti-Listeria activity of lactic acid bacteria, Lactococcus lactis and Lactobacillus paracasei, entrapped in gelling matrices of alginate or alginate/caseinate. Food Control 2015. [DOI: 10.1016/j.foodcont.2014.06.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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11
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Design of biopolymeric matrices entrapping bioprotective lactic acid bacteria to control Listeria monocytogenes growth: Comparison of alginate and alginate-caseinate matrices entrapping Lactococcus lactis subsp. lactis cells. Food Control 2014. [DOI: 10.1016/j.foodcont.2013.09.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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12
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Skovager A, Whitehead K, Wickens D, Verran J, Ingmer H, Arneborg N. A comparative study of fine polished stainless steel, TiN and TiN/Ag surfaces: Adhesion and attachment strength of Listeria monocytogenes as well as anti-listerial effect. Colloids Surf B Biointerfaces 2013; 109:190-6. [DOI: 10.1016/j.colsurfb.2013.03.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 03/21/2013] [Accepted: 03/27/2013] [Indexed: 12/19/2022]
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13
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Silver/chitosan/cellulose fibers foam composites: From synthesis to antibacterial properties. J Colloid Interface Sci 2013; 393:411-20. [DOI: 10.1016/j.jcis.2012.10.057] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 10/23/2012] [Accepted: 10/24/2012] [Indexed: 11/22/2022]
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14
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Chadeau E, Dumas E, Adt I, Degraeve P, Noël C, Girodet C, Oulahal N. Assessment of the mode of action of polyhexamethylene biguanide against Listeria innocua by Fourier transformed infrared spectroscopy and fluorescence anisotropy analysis. Can J Microbiol 2012; 58:1353-61. [PMID: 23210992 DOI: 10.1139/w2012-113] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Polyhexamethylene biguanide (PHMB) is a cationic biocide. The antibacterial mode of action of PHMB (at concentrations not exceeding its minimal inhibitory concentration) upon Listeria innocua LRGIA 01 was investigated by Fourier transformed infrared spectroscopy and fluorescence anisotropy analysis. Fourier transformed infrared spectra of bacteria treated with or without PHMB presented some differences in the lipids region: the CH(2)/CH(3) (2924 cm(-1)/2960 cm(-1)) band areas ratio significantly increased in the presence of PHMB. Since this ratio generally reflects membrane phospholipids and membrane microenvironment of the cells, these results suggest that PHMB molecules interact with membrane phospholipids and, thus, affect membrane fluidity and conformation. To assess the hypothesis of PHMB interaction with L. innocua membrane phospholipids and to clarify the PHMB mode of action, we performed fluorescence anisotropy experiments. Two probes, 1,6-diphenyl-1,3,5-hexatriene (DPH) and its derivative 1-[4-(trimethyl-amino)-phenyl]-6-phenylhexa-1,3,5-triene (TMA-DPH), were used. DPH and TMA-DPH incorporate inside and at the surface of the cytoplasmic membrane, respectively. When PHMB was added, an increase of TMA-DPH fluorescence anisotropy was observed, but no changes of DPH fluorescence anisotropy occurred. These results are consistent with the hypothesis that PHMB molecules perturb L. innocua LRGIA 01 cytoplasmic membrane by interacting with the first layer of the membrane lipid bilayer.
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Affiliation(s)
- Elise Chadeau
- Université de Lyon, Université Lyon 1 - ISARA Lyon, Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires, IUT Lyon 1 site de Bourg en Bresse - Technopole Alimentec, rue Henri de Boissieu, 01000 Bourg en Bresse, France
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Lignitto L, Segato S, Balzan S, Cavatorta V, Oulahal N, Sforza S, Degraeve P, Galaverna G, Novelli E. Preliminary investigation on the presence of peptides inhibiting the growth of Listeria innocua and Listeria monocytogenes in Asiago d’Allevo cheese. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s13594-012-0057-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kumar V, Kumari A, Guleria P, Yadav SK. Evaluating the toxicity of selected types of nanochemicals. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2012; 215:39-121. [PMID: 22057930 DOI: 10.1007/978-1-4614-1463-6_2] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Nanotechnology is a fast growing field that provides for the development of materials that have new dimensions, novel properties, and a broader array of applications. Various scientific groups are keen about this technology and are devoting themselves to the development of more, new, and better nanomaterials. In the near future, expectations are that no field will be left untouched by the magical benefits available through application of nanotechnology. Presently, there is only limited knowledge concerning the toxicological effects of NPs. However, it is now known that the toxic behavior of NPs differ from their bulk counterparts. Even NPs that have the same chemical composition differ in their toxicological properties; the differences in toxicity depend upon size, shape, and surface covering. Hence, before NPs are commercially used it is most important that they be subjected to appropriate toxicity evaluation. Among the parameters of NPs that must be evaluated for their effect on toxicity are surface charges, types of coating material, and reactivity of NPs. In this article, we have reviewed the literature pertinent to the toxicity of metal oxide NPs, metallic NPs, quantum dots (QDs), silica (SiO2) NPs, carbon nanotubes (CNTs), and certain other carbon nanomaterials (NMs). These NPs have already found a wide range of applications around the world. In vitro and in vivo studies on NPs have revealed that most are toxic to animals. However, their toxic behavior varies with their size, shape, surface charge, type of coating material and reactivity. Dose, route of administration, and exposure are critical factors that affect the degree of toxicity produced by any particular type of NP. It is for this reason that we believe a careful and rigorous toxicity testing is necessary before any NP is declared to be safe for broad use. We also believe that an agreed upon testing system is needed that can be used to suitably, accurately, and economically assess the toxicity of NPs. NPs have produced an array of different toxic effects in many different types of in vivo and in vitro studies. The types of effects that NPs have produced are those on the pulmonary, cardiac, reproductive, renal and cutaneous systems, as well as on various cell lines. After exposures, significant accumulations of NPs have been found in the lungs, brain, liver, spleen, and bones of test species. It has been well established that the degree of toxicity produced by NPs is linked to their surface properties. Soluble NPs are rendered toxic because of their constituents; however, the situation is entirely different for insoluble NPs. Stable metal oxides do not show any toxicity, whereas metallic NPs that have redox potential may be cytotoxic and genotoxic. The available data on NP toxicity is unfortunately limited, and hence, does not allow scientists to yet make a significant quantitative risk assessment of the safety of synthesized NPs. In this review, we have endeavored to illustrate the importance of having and using results from existing nanotoxicological studies and for developing new and more useful future risk assessment systems. Increased efforts of both an individual and collective nature are required to explore the future pros and cons of nanotechnology.
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Affiliation(s)
- Vineet Kumar
- Biotechnology Division, Institute of Himalayan Bioresource Technology, CSIR, Palampur, HP, 176061, India
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CHADEAU E, BRUNON C, DEGRAEVE P, LEONARD D, GROSSIORD C, BESSUEILLE F, COTTAZ A, RENAUD F, FERREIRA I, DARROUX C, SIMON F, RIMBAULT F, OULAHAL N. EVALUATION OF ANTIMICROBIAL ACTIVITY OF A POLYHEXAMETHYLENE BIGUANIDE-COATED TEXTILE BY MONITORING BOTH BACTERIAL GROWTH (ISO 20743/2005 STANDARD) AND VIABILITY (LIVE/DEAD BACLIGHT KIT). J Food Saf 2011. [DOI: 10.1111/j.1745-4565.2011.00361.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
The emergence of multi-drug-resistant bacteria such as methicillin-resistant strains of Staphylococcus aureus (MRSA), vancomycin-resistant enterococci, Pseudomonas aeruginosa, Acinetobacter baumannii and extended-spectrum β-lactamase (carbapenemase)-producing Enterobacteriaceae is becoming a serious threat. New-generation antimicrobial agents need to be developed. This includes the design of novel antimicrobial compounds and drug-delivery systems. This review provides an introduction into different classes of antimicrobial materials. The main focus is on strategies for the introduction of antimicrobial properties in polymer materials. These can be roughly divided into surface modification, inclusion of antimicrobial compounds that can leach from the polymer, and the introduction of polymer-bound moieties that provide the polymer with antimicrobial properties. One of the main challenges in the development of antimicrobial polymers for the use in contact with human tissue is the concomitant demand of non-cytotoxicity. Current research is strongly focused on the latter aspect.
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Messaoud M, Chadeau E, Brunon C, Ballet T, Rappenne L, Roussel F, Leonard D, Oulahal N, Langlet M. Photocatalytic generation of silver nanoparticles and application to the antibacterial functionalization of textile fabrics. J Photochem Photobiol A Chem 2010. [DOI: 10.1016/j.jphotochem.2010.08.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Brunon C, Bessueille F, Grossiord C, Chadeau E, Oulahal N, Darroux C, Ferreira I, Bourgeois M, Simon F, Rimbault F, Yu C, Leonard D. ToF-SIMS and XPS characterization of antimicrobial textiles for the food processing industry. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3654] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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