Morphological Properties and Antibacterial Activity of Nano-Silver-Containing Cellulose Acetate Phthalate Films

Necula, Adina Maria; Dunca, Simona; Stoica, Iuliana; Olaru, Niculae; Olaru, Liliana; Ioan, Silvia

doi:10.1080/1023666x.2010.500524

Cited by 21 publications

(13 citation statements)

References 17 publications

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“…The antimicrobial effect of the silver particles is due to silver ion migrating from packaging materials to food in contact. Several silver based composites have been reported effective like chitosan-silver nanocomposites found effective against E. coli, L. monocytogenes and Staphylococcus aureus [55], and nano silver particles coated with Cellulose acetate phthalate also provided the same results [56]. It has also been found that matrix also play an important role in the migration of silver ions to carry out its antimicrobial activity [57].…”

Section: Antimicrobial Packagingsupporting

confidence: 51%

Nanotechnology and Food. Is Nanotechnology for Food Applications Safe? : A Review

Khan¹

2015

NSTOA

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Nanoscience & Technology: Open AccessOpen Access Review Article nanotechnology arising a new emerging discipline called food nanotechnology. Literally Food and Drug Administration USA (FDA) gives the definition of food nanotechnology in a sense that the nanomaterials used in this case can have size up to 1000 nm because there has been some evidences that even at larger size the particles have same behavior at smaller scale [3].The technology provides its services in almost all sectors of food from production to marketing. In agriculture sector there are several applications available like nano-tech based pesticides and fertilizers with effective impact on plant growth, targeted genetic engineering and molecular farming with the help of nano-vectors which is hoping to take the place of viral vectors [4]. In food processing various industries are also taking leads and making the food with better quality and good nutritive value by utilizing the knowledge of nanotechnology and applying it in food sciences. For example, high impermeable packaging nanomaterials are used for protection of food from UV radiations and providing more strength to keep the food protected from outer environment, thus increasing their shelf life. Beside, nanosensors are also used for the detection of chemicals, gases and pathogens which can represent the spoilage and its rate. In modern terminology a word is given to such type of packaging which is known as smart packaging. Nutritive supplements using polymeric nano-coating with greater bioavailability are also introduced to complete the nutritional requirements. And it is a fact that the most participating research in food nanotechnology is in food processing section in which many researchers and industries are increasing their research in food safety with the help of nanotechnology. Some studies suggested that people are not accepting the direct involvement of nano-particles in food [5] due to some risk factors. So it is needed to provide some safety measurements by creating methods that avoid such direct involvement to reduce the risk and satisfy the community. Organization of Food Structure at Nano-LevelNanoparticles are not always synthetic but nature provide us a view of thinking how these particles are present in nature in various forms as in food, which is a combination of nano versus micro-particles. These molecules make an ordered organization AbstractFood nanotechnology is a combined discipline of food science and nanotechnology. It provides many applications almost in all areas of food technology. This article reviews the main focus in food nanotechnology research of food safety in various forms in which nano-biosensors and antimicrobials nano-agents are the works of interest. These tools are helpful in providing food security and together with nano-coating materials. It makes the base of smart packaging. It is now being estimated from the review that these nanoagents have great contribution in food safety but the health hazard risks due to accumulation of nanomaterials in food s...

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Section: Antimicrobial Packagingsupporting

confidence: 51%

Nanotechnology and Food. Is Nanotechnology for Food Applications Safe? : A Review

Khan¹

2015

NSTOA

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“…Among the various kinds of pathogenic microorganisms, Staphylococcus aureus and Escherichia coli are closely related species, that commonly cause a wide variety of infections and diseases (Panacek et al 2009;Bae et al 2010). Therefore, the development of antimicrobial surface coating of cellulosic materials has attracted increased attention for preventing microbial contamination (Necula et al 2010(Necula et al , 2011Ioan and DobosNecula 2012). The use of inorganic antimicrobial agents has gained importance because of their ability to withstand adverse processing conditions, as compared to organic antimicrobial agents (Wu et al 2009a, b;Yuvaraj et al 2010).…”

Section: Cellulose Nanocomposite With Antimicrobial Activitymentioning

confidence: 98%

Cellulose Acetate Nanocomposites with Antimicrobial Properties

Dobos

Onofrei

Ioan

2015

Advanced Structured Materials

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The chapter overviews recent progress made in the area of cellulose acetate nanocomposites, considering their high-volume applications and easy processing ability. Based on their structural details, the review provides data concerning the manufacturing, characterization, and new developments in this area, with particular emphasis on biomedical applications. Stress is laid on the importance of antimicrobial activity, correlated with different bacteria characteristics, on also considering that their interaction mechanisms create inhibitory effects against microbial growth in a solid medium, and decide their areas of applicability. In this context, the presented aspects show that cellulosic materials can be designed and fine-tuned to acquire certain properties required in different biomedical areas.

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“…44,[50][51][52][53] In this context, the results concerning their interactions with blood components may be applied in the biomedical field, where assessment of bacterial adherence to the polymer surface is required.…”

Section: Antimicrobial Activity Assessmentsmentioning

confidence: 99%

Biocidal activity of cellulose materials for medical implants

Onofrei¹,

Dobos²,

Dunca

et al. 2015

J of Applied Polymer Sci

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Surface wettability trends, and blood component adhesion of some cellulose acetate phthalate/hydroxypropyl cellulose blend films are analyzed in view of adapting the system to biomedical applications. The results show that intermediate blend compositions of the corresponding films influence the surface tension parameters-controlled by the interactions occurring in the system. Increasing hydrophobicity and, implicitly, decreasing the polar surface tension components, are correlated with the adhesion/cohesion of blood components and plasma proteins. Thus, the work of spreading proteins on the hydrophobic blend surfaces indicated that albumin is not absorbed preferentially, while fibrinogen is characterized by a higher degree of adhesion on the surfaces, and also that selective adsorption of plasma proteins modifies blood compatibility. In addition, the obtained results and the ascertained antimicrobial activity of the studied blends contribute to the development of new applications in the biomedical field.

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Morphological Properties and Antibacterial Activity of Nano-Silver-Containing Cellulose Acetate Phthalate Films

Cited by 21 publications

References 17 publications

Nanotechnology and Food. Is Nanotechnology for Food Applications Safe? : A Review

Nanotechnology and Food. Is Nanotechnology for Food Applications Safe? : A Review

Cellulose Acetate Nanocomposites with Antimicrobial Properties

Biocidal activity of cellulose materials for medical implants

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