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solution blow spinning

Shuaishuai Yuan, Zhibo Li, Lingjie Song, Hengchong Shi, Shifang Luan, Jinghua Yin
Infection and thrombosis associated with medical implants cause significant morbidity and mortality worldwide. As we know, current technologies to prevent infection and thrombosis may cause severe side effects. To overcome these complications without using antimicrobial and anticoagulant drugs, we attempt to prepare a liquid-infused poly(styrene-b-isobutylene-b-styrene) (SIBS) microfiber coating, which can be directly coated onto medical devices. Notably, the SIBS microfiber was fabricated through solution blow spinning...
August 24, 2016: ACS Applied Materials & Interfaces
Michelle A Souza, Juliano E Oliveira, Eliton S Medeiros, Gregory M Glenn, Luiz H C Mattoso
The controlled-release of natural plant oils such as linalool is of interest in therapeutics, cosmetics, and antimicrobial and larvicidal products. The present study reports the release characteristics of linalool encapsulated at three concentrations (10, 15 and 20 wt.%) in poly(lactic acid) nanofibrous membranes produced by electrospinning and solution blow spinning (SBS) as well as the effect of linalool on fiber morphology and structural properties. PLA nanofibrous membranes were characterized by Scanning Electron Microscopy (SEM), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and contact angle measurements...
August 2015: Journal of Nanoscience and Nanotechnology
Marta Martínez-Sanz, Cristina Bilbao-Sainz, Wen-Xian Du, Bor-Sen Chiou, Tina G Williams, Delilah F Wood, Syed H Imam, William J Orts, Amparo Lopez-Rubio, Jose M Lagaron
The present study reports on the development of hybrid poly(lactic acid) (PLA) fibres loaded with highly crystalline bacterial cellulose nanowhiskers (BCNW) by the novel solution blow spinning method. Furthermore, fibres with antimicrobial properties were generated by incorporating carvacrol and THC as antimicrobial agents and the biocide effect against Listeria monocytogenes was studied. Initially, PLA blow spun fibres containing BCNW were optimized in terms of morphology and thermal properties. The addition of BCNW was seen to significantly increase the viscosity and surface tension of solutions, restricting the capacity to form fibres for concentrations greater than 30 wt...
January 2015: Journal of Nanoscience and Nanotechnology
Juliano Elvis Oliveira, Luiz Henrique Capparelli Mattoso, Eliton Souto Medeiros, Valtencir Zucolotto
The focus of this paper is the development and investigation of properties of new nanostructured architecture for biosensors applications. Highly porous nanocomposite fibers were developed for use as active materials in biosensors. The nanocomposites comprised poly(lactic acid)(PLA)/multi-walled carbon nanotube (MWCNT) fibers obtained via solution-blow spinning onto indium tin oxide (ITO) electrodes. The electrocatalytic properties of nanocomposite-modified ITO electrodes were investigated toward hydrogen peroxide (H2O2) detection...
2012: Biosensors
Roberta F Bonan, Paulo R F Bonan, André U D Batista, Fábio C Sampaio, Allan J R Albuquerque, Maria C B Moraes, Luiz H C Mattoso, Gregory M Glenn, Eliton S Medeiros, Juliano E Oliveira
In this study poly(lactic acid) (PLA) and polyvinylpyrrolidone (PVP) micro- and nanofiber mats loaded with Copaiba (Copaifera sp.) oil were produced by solution blow spinning (SBS). The Copaiba (Copaifera sp.) oil was characterized by gas chromatography (GC). Neat PLA and four PLA/PVP blends containing 20% (wt.%) oil were spun and characterized by scanning electron microscopy (SEM) and by studying the surface contact angle, in vitro release rate, and antimicrobial activity. All compositions evaluated were able to produce continuous and smooth fibers by SBS...
March 2015: Materials Science & Engineering. C, Materials for Biological Applications
Mert Vural, Adam M Behrens, Omar B Ayyub, Joseph J Ayoub, Peter Kofinas
Block copolymer silver nanoparticle composite elastic conductors were fabricated through solution blow spinning and subsequent nanoparticle nucleation. The reported technique allows for conformal deposition onto nonplanar substrates. We additionally demonstrated the ability to tune the strain dependence of the electrical properties by adjusting nanoparticle precursor concentration or localized nanoparticle nucleation. The stretchable fiber mats were able to display electrical conductivity values as high as 2000 ± 200 S/cm with only a 12% increase in resistance after 400 cycles of 150% strain...
January 27, 2015: ACS Nano
Juliano Elvis Oliveira, Eliton Souto Medeiros, Lucio Cardozo, Fernando Voll, Ed Hoffmann Madureira, Luiz Henrique Capparelli Mattoso, Odilio Benedito Garrido Assis
Solution blow spinning (SBS) is a novel technology feasible to produce nanostructured polymeric membranes loaded with active agents. In the present study, nanofibrous mats of poly(lactic acid) (PLA) loaded with progesterone (P4) were produced by SBS at different P4 concentrations. The spun membranes were characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and Fourier-transform infrared spectroscopy (FTIR). The in vitro releasing of P4 was evaluated using high-performance liquid chromatography (HPLC)...
March 1, 2013: Materials Science & Engineering. C, Materials for Biological Applications
E N Bolbasov, Y G Anissimov, A V Pustovoytov, I A Khlusov, A A Zaitsev, K V Zaitsev, I N Lapin, S I Tverdokhlebov
A solution blow spinning technique is a method developed recently for making nonwoven webs of micro- and nanofibres. The principal advantage of this method compared to a more traditional electrospinning process is its significantly higher production rate. In this work, the solution blow spinning method was further developed to produce nonwoven polymeric scaffolds based on a copolymer of tetrafluoroethylene with vinylidene fluoride solution in acetone. A crucial feature of the proposed method is that high-voltage equipment is not required, which further improves the method's economics...
July 1, 2014: Materials Science & Engineering. C, Materials for Biological Applications
Suntharavathanan Mahalingam, Mohan Edirisinghe
A new route consisting of simultaneous centrifugal spinning and solution blowing to form polymer nanofibers is reported. The fiber diameter (60-1000 nm) is shown to be a function of polymer concentration, rotational speed, and working pressure of the processing system. The fiber length is dependent on the rotational speed. The process can deliver 6 kg of fiber per hour and therefore offers mass production capabilities compared with other established polymer nanofiber generation methods such as electrospinning, centrifugal spinning, and blowing...
July 25, 2013: Macromolecular Rapid Communications
Xupin Zhuang, Xiaocan Yang, Lei Shi, Bowen Cheng, Ketian Guan, Weimin Kang
Solution blowing is an innovative process for spinning micro-/nano-fibers from polymer solutions using high-velocity gas flow as fiber forming driving force. Submicron-scale cellulose fibers were successfully solution blown by two improvement measures. First, cellulose solution was directly blown to fibers of 260-1900 nm in diameter by raising the air temperature along the spinning line which was proved to accelerate the evaporation of solvent and fiber forming. Second, coaxial solution blowing technique was established with cellulose solution and polyethylene oxide (PEO) solution used as core and shell liquids, respectively...
October 1, 2012: Carbohydrate Polymers
Juliano E Oliveira, Valtencir Zucolotto, Luiz H C Mattoso, Eliton S Medeiros
Nanocomposite fibers based on multi-walled carbon nanotubes (MWCNT) and poly(lactic acid) (PLA) were prepared by solution blow spinning (SBS). Fiber morphology was characterized by scanning electron microscopy (SEM) and optical microscopy (OM). Electrical, thermal, surface and crystalline properties of the spun fibers were evaluated, respectively, by conductivity measurements (4-point probe), thermogravimetric analyses (TGA), differential scanning calorimetry (DSC), contact angle and X-ray diffraction (XRD)...
March 2012: Journal of Nanoscience and Nanotechnology
Christina Kriegel, Alessandra Arecchi, Alessandra Arrechi, Kevin Kit, D J McClements, Jochen Weiss
The use of novel nanostructured materials has attracted considerable interest in the food industry for their utilization as highly functional ingredients, high-performance packaging materials, processing aids, and food quality and safety sensors. Most previous application interest has focused on the development of nanoparticles. However, more recently, the ability to produce non-woven mats composed of nanofibers that can be used in food applications is beginning to be investigated. Electrospinning is a novel fabrication technique that can be used to produce fibers with diameters below 100 nm from (bio-) polymer solutions...
September 2008: Critical Reviews in Food Science and Nutrition
Miho Uchida, Takahiro Sogabe, Tadaaki Ikoma, Akitsugu Okuwakit
A new method of supplying radical species to aqueous solutions using a hydrogen-oxygen flame is investigated. When a hydrogen-oxygen flame is directed on the surface of an aqueous solution, hydroxyl radicals (*OH) produced in the flame are extracted into the aqueous phase. The presence of *OH in the aqueous solution was confirmed by electron paramagnetic resonance with spin trapping using 5,5-dimethyl-1-pyrroline-N-oxide. The extraction of *OH into the aqueous solution was monitored using a quantitative analysis of hydrogen peroxide (H2O2)...
August 1, 2005: Environmental Science & Technology
In Chul Um, Dufei Fang, Benjamin S Hsiao, Akio Okamoto, Benjamin Chu
In this study, hyaluronic acid (HA) was electro-spun and electro-blown to prepare nonwoven nanofibrous membranes. Critical parameters for processing and corresponding effects on the membrane morphology were investigated using the methods of rheology and scanning electron microscopy (SEM). During electro-spinning, the optimal HA concentration window for nanofibrous formation was determined within a narrow range of 1.3-1.5 w/v %, corresponding to a solution viscosity range of 3-30 Pa s at a shear rate of 1 s(-1)...
July 2004: Biomacromolecules
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