Electrospun nanofibrous mats

Electrospun nanofibre mats prepared by a modified electospinning system have high porosity. 

Yan, S., Xiaoqiang, L., Shuiping, L., Xiumei, M., and Ramakrishna, S. (2009) Controlled release of dual drugs from emulsion electrospun nanofibrous mats. Colloids Surf, B, 73, 376-381. 

L. Ribba, M. Paris , N.B. D Accorso and S. Goyanes, Electrospun nanofibrous mats From vascular repair to osteointegration. J. Biomed. Nanotechnol.lO 3508-3535,2014. 

Absorbent materials are attractive for some applications because of the possibility of collection and complete removal of the oil from the oil spill site. The important characteristics of good absorbent materials include hydrophobicity and oleophilic-ity, high uptake capacity, high rate of uptake, retention over time, oil recovery from absorbents, and the reusability of the absorbents [45-52]. Electrospun nanofibrous mats with and without appropriate posttreatment by using nonpolar materials with low surface energy enabled them to exhibit hydrophobicity-oleophilicity properties, which make these materials particularly suited for applications in oil cleanup from water [53-55] (Fig. 17.3). 

Cai Y, Zong X, Zhang J, Hu Y, Wei Q, He G, et al. Electrospun nanofibrous mats absorbed with fatty acid eutectics as an innovative type of form-stable phase change materials for storage and retrieval of thermal energy. Sol Energy Mater Sol Cells 2013 109 160-8. 

The inclusion of electrospun nanofibrous mats in the composite structures can provide the high modulus and strength to weight ratios, which generally cannot be achieved by other engineered material alone. 

Ribba L, Parisi M, D Accorso NB, Goyanes S (2014) Electrospun nanofibrous mats fiom vascular repair to osteointegration. J Biomed Nanotechnol 10 1-28... 

Nanofibre mats are produced by the electrospinning process as a result of the potential gradient between needle tip and collector. Various polymers have been successfully electrospun into ultrafine fibres mostly from solvent solution and some in melt form... 

Ndreu A, Nikkola L, Ylikauppila H, Ashammakhi N, Hasirci V (2008) Electrospun biodegradable nanofibrous mats for tissue engineering. Nanomedicine 3 45-60 Nelson T, Kaufman E, Kline E, Sokoloff L (1981) The extraneural distribution of gammahy-droxybutyrate. J Neurochem 37 1345-1388... 

Researchers have reported some properties of electrospun mats. They compared the performances of electrospun fibre mats with the properties of textiles and membranes currently used in protective clothing systems and showed that electrospun layers are extremely efficient for trapping airborne particles. Meanwhile, the air flow resistance and aerosol filtration properties are affected by the coating weight. It was shown that an extremely thin layer of electrospun nanofibres completely prevented particle penetration through the layer. 

Preliminary studies were performed to find the optimum conditions for electrospinning PVA solutions. As the polymer concentration increased, a mixture of beads and fibres was formed. Therefore, a PVA concentration of 10% was used for preparation of electrospun nanofibres. A series of mats were prepared from the 10% PVA solution in a mixture containing various amounts of ferric chloride or ammonium persulfate as oxidant at the 15 kV constant electric field. SEM photomicrographs of electrospun PVA nanofibres from a 10% solution showed the presence of uniform nanofibres with diameters ranging from 150 to 400 nm, with an average diameter of 350 nm. 

I. M. (2013) Characteristics of X-ray attenuation in electrospun bismuth oxide/polylactic acid nanofibre mats. / Synchrotron Radiat., 20, 741 -748. 

Kim HJ, Pant HR, Amarjargal A, Kim CS (2013) Incorporation of silver-loaded ZnO rods into electrospun nylon-6 spider-web-fike nanofibrous mat using hydrothermal process. Colloids Surf A Physicochem Eng Asp 434 49-55... 

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