Third Day Poster Session, 17 June 2010 - NanoTR-VI

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P P P P Poster Session, Thursday, June 17 Theme F686 - N1123 Use of Nanotextile Materials in Filtration 1 1 2 3 Nuriye KoçakP P, Mustafa ahinP P, UOnur TekoluUP P*, Erkan KalpcP P, Celalettin ÖzdemirP 1 PScience Fac.,Chemistry Dept., Selçuk University, Konya 42075, Turkey 2 PVoc. High Sch , Text. Dept., Giresun University, Giresun 28100, Turkey 3 PEdc. Fac. Biology Dept., Selçuk University, Konya 42090, Turkey 4 PEng.-Arc. Fac. Env. Eng. Dept., Selçuk University, Konya 42075, Turkey Abstract-It is quite difficult to refine textile industry wastewater and remove the colour of azodyes in that wastewater.Using advanced tecniques causes high cost.In our work; it is started to produce nano-chitosan particules with nano-particules in labratory environment and we have stated that important refining efficiency will be taken when the zeta potential and the structure of nano-chitosan particules are analysed. Besides;in this work it is stated that in our country we should produce nano-textile materials and their applicability must be searched in detail in order to decrease the environmental pollution caused by industrial reasons to the minimum level. 4 Nanoscience and nanotechnology have begun to enter in our lifes in various fields.Starting with textile industry These fields extends from chemical industry,molecular biology and genetic engineering to the environmental engineering [1].For example in environmental applications;it is stated that by using nono-sized iron high efficiency has been obtained in removing various hidrocarbones which are chlorinated,and efficient removing is provided due to the absorbtion of pollutants like trihalometans, 1,2-diklorobenzen with carbon nano-tubes [2, 3, 4]. Nowadays we call for the technologies which use less raw materials and provides alternative refining methods, reduction in environmental pollution and less waste production.Nanotechonology has an important role in the methods of pollution control.With the help of nano-materials and nano-appliances the efficiency of energy and procuct can be increased; the chemical use and waste production can be decreased [5]. Refining textile industry waste water and removing colour of azodyes in wastewater is very difficult. .Using advanced tecniques causes high cost.In our work; it is started to produce nano-chitosan particules in nano-particular environment and we have stated that vital refining efficiency will be taken when the zeta potential and the structure of nano-chitosan particules are analysed. Studies of refining about them are supposed to begin soon In addition to these in this work; it is stated that in our country we should produce nano-textile materials and their applicability must be completely searched in order to decrease the environmental pollution caused by industrial reasons to the minimum level.The most important applications of nanotechnology textile field are the production of nano and micro fibre and forming textile surface from the fibres [6]. Nano-sized materials are more reactive than macroscobicsized materials because they have small size ,high surface area and distinctive crystal forms.[7].The characteristics of microfiber liquid filters are;high water transition speed,easy cleaning and high performance of leaking. (keeping particules in micrometre sizemikrometer) [8]. The most important parameter which affects the filtration performance is the thinness of the fiber which is used as a filtration performance and it is possible to reach any wanted thinness level. The textiles that are produced from microfibers make perfect effect for gas and liquid filtration because of their thin and firm structures. Especially the textiles like 0,05 dtex polipropilen (surface without tissue) that are produced from super thin microfibers,with the high electric voltage application, gain permanent embarkation and draws absorbs dust particles.The textiles that are produced from microfibers can have great effect in gas and liquid filtration[9, 10]. According to the researches it is stated that in industrial processes filtration textiles increases the purity of the product and production efficiency and provides energy saving,recycle and rise in pollution control[11]. In our country, in systems like waste refining units,chimney and dust emission systems,vacuum cleaners etc and in environment, the applicability of textiles which are produced from microfibers used in nanotechnology must be searched in detail. *Corresponding author: HTonur.tekoglu@giresun.edu.trT [1] UK Royal Society, 2004, The Royal Society and the Royal Academy of Engineering. Nanoscience and Nanotechnologies: Opportunities and Uncertainties, http://www.nanotec.org.uk/finalreport.htm (22 July 2009). [2]Elliott, D.W., Zhang, W.-X., 2001, Field Assessment of Nanoscale Bimetallic Particles for Groundwater Treatment, Environmental Science and Technology, 35/15:4922-4926. [3]Peng, X., Li, Y., Luan, Z., Di, Z., Wang, H., Tian, B., Jia, Z., 2003, Adsorption Of 1,2-Dichlorobenzeze From Water To Carbon Nanotubes, Chemical Physics Letters, 376/1:154-158. [4]Lu, C.S., Chung, Y.L., Chang, K.F., 2005, Adsorption of Trihalomethanes from Water With Carbon Nanotubes, Water Research, 39/6:1183-1189. [5]US.EPA, 2007, Nanotechnology White Paper, www.epa.gov/osa/pdfs/nanotech/epa- nanotechnologywhite- paperfinal-July-2009.pdf . [6]kiz, Y., 2006, Tekstilde Nanoteknoloji, Bilim ve Teknik, Aralk (1), HThttp://www.nano.bilkent.edu.tr/Basin/NanoTekstil.pdfTH, (April, 2010) [7]Masciangioli, T. ve Zhang W-X., 2003, Environmental Technologies at the Nanoscale, Environmental Science and Technology, 37/5:102-108. [8] Purane, S.V., ve Panigrahi, N.R., 2007, Microfibers, microfilamnets and their applications, Autex Research Journal, 7:3. [9] Kaynak, H. K., Babaarslan, O., 2009, Mikroliflerin Tekstil Endüstrisindeki Yeri ve Önemi, Tekstil Teknolojileri Elektronik Dergisi 3,3:70-83. [10] Purane, S.V., ve Panigrahi, N.R., 2007, Microfibers, Microfilamnets and their Applications, Autex Research Journal, 7, 3, 148-158. [11] Can, Ö., 2008, Endüstride Kullanlan Teknik Tekstiller Üzerine Bir Aratrma, Tekstil Teknolojileri Elektronik Dergisi, 3:31-43 6th Nanoscience and Nanotechnology Conference, zmir, 2010 793
P Poster Session, Thursday, June 17 Theme F686 - N1123 1 Nanotechnology and Its Applications in Food Sector 1 USeval Sevgi KrdarUP P* PMehmet Akif Ersoy University Vocational Higher Education School, Food Processing Department 15 100 Burdur-Turkey Abstract- In this rewiew summarized the application of nanotechnology relevant to food sector. Nanotechnology applications are expected to bring a range of benefits to the food sector, including new tastes, textures and sensations, less use of fat, enhanced absorption of nutrients, improved packaging, traceability and security of food products [1] Several applications of nanotechnology are available (Figure 1) UFood Processing Nanocapsules for improving bioavailability of neutraceuticals in standard ingredients such as cooking oils Nanoencapsulated flavor enhancers Nanotubes and nanoparticles as gelation and viscosifying agents. Nanocapsule infusions of plant-based steroids as a replacement for meat cholesterol Nanoparticles that selectively bind and remove chemicals or pathogens from food Nanoemulsions and nanoparticles for beter availability and dispersion of nutrients Altria, Nestle, Kraft, Heinz and Unilever, as well as small nanotech start-up companies[4] Nanoparticles are already on the market. An inventory of consumer products incorporating nanotechnology identified 580 nano-products, and classified them into eight categories (Figure 2). Of the 580 nano-products, 12% were classified as ‘Home and Garden’ and the largest category was ‘Health and Fitness’ which accounted for 61% of the total (Figure 1). These products were further subdivided as: ‘Food’; ‘Cooking’; ‘Storage’; and ‘Supplements’ (Figure 3). Nanotechnology UFood Packaging Applications mproved packagings(gas and moisture barriers, tensile strenght) Shelf life extention via active packaging Nanoadditives ntelligent packaging Delivery and controlled release of neutraceuticals Antibacterial or self-cleaning packaging Monitoring product conditions during trasportation Figure.2. Nano-products Figure 1. Potential application of nanotechnology in the food and food packaging [1,2] Worldwide sales of nanotechnology products to the food and beverage packaging sector increased from US$ 150 million in 2002 to US$ 860 million in 2004 and are expected to reach to US$ 20,4 billion by 2010[2]. In a survey performed by Israel and The USA in march 2006, it was found that over 200 manufacturers currently market products idendified as “nanoproducts”. Approximately 60% of these products were for “health and fitness” and 9% were for “food and beverage products[3]. The nanofood sector (the term refers to the use of nanotechnology techniques, materials or tools for production, processing or packaging of food) is currently led by USA, followed by Japan and China. However, Asian countries (led by China) are expected to be the biggest market for nanofood by 2010[4]. It has been suggested that the number of companies currently applying nanotechnologies to food could be as high as 400 . A number of major food and beverage companies are reported to have (or have had) an interest in nanotechnology. These include Figure 3. TDistribution of nanotechnology products classified as ‘Food and Beverage’ [5] HT*Corresponding author: skirdar@mehmetakif.edu.trT [1] http://www.nap.edu/catalog/12633.html [2] Sozer, N., Kokini, J.L., 2009. Nanotechnology and ist applications in food sector. Trendsin Biotechnology, 27:82-89 [3] Chau C.F., 2007. The development of regulations for food technology. Trends Food Sci. Technol. 18:269-280 [4] Smith, J.P., Hoshino, J., Abe, Y., 1995. Interactive packaging involving sachet technology. In M.L.Rooney (Ed.), Active food packaging (pp. 143-173). Glasgow: Blackie Academic and Proffesional [5] http://orgprints.org/16786 6th Nanoscience and Nanotechnology Conference, zmir, 2010 794
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