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https://www.readbyqxmd.com/read/29577286/antimicrobial-carvacrol-in-solution-blow-spun-fish-skin-gelatin-nanofibers
#1
Fei Liu, Furkan Türker Saricaoglu, Roberto J Avena-Bustillos, David F Bridges, Gary R Takeoka, Vivian C H Wu, Bor-Sen Chiou, Delilah F Wood, Tara H McHugh, Fang Zhong
Carvacrol is a volatile monoterpenic phenol and main component of oregano essential oil that shows nonspecific antimicrobial activity against foodborne pathogenic bacteria. Fish-skin gelatin (FSG) nanofibers encapsulating carvacrol (15%, 20%, 25%, and 30%, w/w FSG) were successfully prepared via solution blow-spinning (SBS) technique using lecithin (2.475% wb) as the surfactant. FSG emulsions with lower carvacrol ratios (5% and 10%) showed higher values in particle size and surface tension as well as lower values in viscosity and modulus, which led to failure of maintaining nanofibers shape...
March 25, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29557171/spray-processed-composites-with-high-conductivity-and-elasticity
#2
Mert Vural, Adam Michael Behrens, Wonseok Hwang, Joseph J Ayoub, Dalton Chasser, Arthur von Wald Cresce, Robert M Briber, Peter Kofinas
Highly conductive elastic composites were constructed using multi-step solution based fabrication methods that included the deposition of a non-woven polymer fiber mat through solution blow spinning and nanoparticle nucleation. High nanoparticle loading was achieved by introducing silver nanoparticles into the fiber spinning solution. The presence of the silver nanoparticles facilitates improved uptake of silver nanoparticle precursor in subsequent processing steps. The precursor is used to generate a second nanoparticle population, leading to high loading and conductivity...
March 20, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29470390/preparation-of-fish-skin-gelatin-based-nanofibers-incorporating-cinnamaldehyde-by-solution-blow-spinning
#3
Fei Liu, Furkan Türker Saricaoglu, Roberto J Avena-Bustillos, David F Bridges, Gary R Takeoka, Vivian C H Wu, Bor-Sen Chiou, Delilah F Wood, Tara H McHugh, Fang Zhong
Cinnamaldehyde, a natural preservative that can non-specifically deactivate foodborne pathogens, was successfully incorporated into fish skin gelatin (FSG) solutions and blow spun into uniform nanofibers. The effects of cinnamaldehyde ratios (5-30%, w / w FSG) on physicochemical properties of fiber-forming emulsions (FFEs) and their nanofibers were investigated. Higher ratios resulted in higher values in particle size and viscosity of FFEs, as well as higher values in diameter of nanofibers. Loss of cinnamaldehyde was observed during solution blow spinning (SBS) process and cinnamaldehyde was mainly located on the surface of resultant nanofibers...
February 22, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29352922/cellulose-nanofiber-embedded-sulfonated-poly-ether-sulfone-membranes-for-proton-exchange-membrane-fuel-cells
#4
Xianlin Xu, Rui Li, Chenxiao Tang, Hang Wang, Xupin Zhuang, Ya Liu, Weimin Kang, Lei Shi
Cellulose nanofibers were embedded into sulfonated poly (ether sulfone) matrix to heighten the water retention and proton conductivity of proton exchange membranes (PEMs). Cellulose nanofibers were obtained by hydrolyzing cellulose acetate nanofibers, which were prepared via electrostatic-induction-assisted solution blow spinning. Morphology, thermal stability, and mechanical properties of the PEMs were investigated. The results showed that proton conductivity, water uptake, and methanol permeability of the composite membranes were improved...
March 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29329666/advances-in-self-healing-materials-based-on-vascular-networks-with-mechanical-self-repair-characteristics
#5
REVIEW
Min Wook Lee, Seongpil An, Sam S Yoon, Alexander L Yarin
Here, we review the state-of-the-art in the field of engineered self-healing materials. These materials mimic the functionalities of various natural materials found in the human body (e.g., the healing of skin and bones by the vascular system). The fabrication methods used to produce these "vascular-system-like" engineered self-healing materials, such as electrospinning (including co-electrospinning and emulsion spinning) and solution blowing (including coaxial solution blowing and emulsion blowing) are discussed in detail...
February 2018: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29177875/peculiarities-of-cell-seeding-on-polylactic-acid-based-scaffolds-fabricated-using-electrospinning-and-solution-blow-spinning-technologies
#6
S A Afanasiev, E F Muslimova, Yu A Nashchekina, P O Nikonov, Yu V Rogovskaya, E N Bolbasov, S I Tverdokhlebov
We studied the possibility of seeding bone marrow-derived stromal cells onto polylactic acid-based scaffolds fabricated by electrospinning and solution blow spinning technologies. The cells were applied to the scaffolds by dynamic seeding and scaffolds were then cultured in Petri dishes in culture medium for 3 days. Cell migration to the Petri dish surface was noted only for scaffolds fabricated by electrospinning technology, but DAPI staining confirmed the presence of cells in both scaffolds. The mean number of cells in scaffolds fabricated by electrospinning and solution blow spinning was 56±9 and 81±6, respectively...
December 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29149049/preparation-of-solution-blown-polyamic-acid-nanofibers-and-their-imidization-into-polyimide-nanofiber-mats
#7
Jing Li, Guocheng Song, Junrong Yu, Yan Wang, Jing Zhu, Zuming Hu
Solution blow spinning (SBS) is an innovative process for spinning micro/nanofibers. In this paper, polyamic acid (PAA) nanofibers were fabricated via a SBS apparatus and then imidized into polyimide (PI) nanofibers via thermal process. The morphology and diameter distributions of PAA nanofibers were determined by scanning electron microscope (SEM) and Image Tool software, the processing parameters, including PAA concentration, solution feeding rate, gas pressure, nozzle size, and receiving distance were investigated in details...
November 17, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28821149/solution-blow-spun-nanocomposites-of-poly-lactic-acid-cellulose-nanocrystals-from-eucalyptus-kraft-pulp
#8
Delne Domingos da Silva Parize, Juliano Elvis de Oliveira, Tina Williams, Delilah Wood, Roberto de Jesús Avena-Bustillos, Artur Piotr Klamczynski, Gregory Melvin Glenn, José Manoel Marconcini, Luiz Henrique Capparelli Mattoso
Cellulose nanocrystals (CNCs) were extracted from Eucalyptus kraft pulp by sulfuric acid hydrolysis, and esterified with maleic anhydride (CNCMA ). The incorporation of sulfate ester groups on the cellulose surface resulted in higher stability of the nanoparticles in aqueous suspensions and lower thermal stability. Then, PLA/CNC and PLA/CNCMA nanocomposites were successfully obtained by solution blow spinning (SBS) using dimethyl carbonate (DMC) as solvent. CNC and CNCMA indicated to be acting both as nucleating agents or growth inhibitors of PLA crystal and tends to favor the formation of PLA crystals of higher stability...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28690683/microchip-based-3d-cell-culture-using-polymer-nanofibers-generated-by-solution-blow-spinning
#9
Chengpeng Chen, Alexandra D Townsend, Scott A Sell, R Scott Martin
Polymer nano/micro fibers have found many applications including 3D cell culture and the creation of wound dressings. The fibers can be produced by a variety of techniques that include electrospinning, the primary disadvantage of which include the requirement for a high voltage supply (which may cause issues such as polymer denaturation) and lack of portability. More recently, solution blow spinning, where a high velocity sheath gas is used instead of high voltage, has been used to generate polymer fibers. In this work, we used blow spinning to create nano/microfibers for microchip-based 3D cell culture...
June 14, 2017: Analytical Methods: Advancing Methods and Applications
https://www.readbyqxmd.com/read/28630915/ultralight-scalable-and-high-temperature-resilient-ceramic-nanofiber-sponges
#10
Haolun Wang, Xuan Zhang, Ning Wang, Yan Li, Xue Feng, Ya Huang, Chunsong Zhao, Zhenglian Liu, Minghao Fang, Gang Ou, Huajian Gao, Xiaoyan Li, Hui Wu
Ultralight and resilient porous nanostructures have been fabricated in various material forms, including carbon, polymers, and metals. However, the development of ultralight and high-temperature resilient structures still remains extremely challenging. Ceramics exhibit good mechanical and chemical stability at high temperatures, but their brittleness and sensitivity to flaws significantly complicate the fabrication of resilient porous ceramic nanostructures. We report the manufacturing of large-scale, lightweight, high-temperature resilient, three-dimensional sponges based on a variety of oxide ceramic (for example, TiO2, ZrO2, yttria-stabilized ZrO2, and BaTiO3) nanofibers through an efficient solution blow-spinning process...
June 2017: Science Advances
https://www.readbyqxmd.com/read/28471491/solution-blow-spinning-of-food-grade-gelatin-nanofibers
#11
Fei Liu, Roberto J Avena-Bustillos, Cristina Bilbao-Sainz, Rachelle Woods, Bor-Sen Chiou, Delilah Wood, Tina Williams, Wallace Yokoyama, Gregory M Glenn, Tara H McHugh, Fang Zhong
The primary advantage of nanofibers over larger diameter fibers is the larger surface area to volume ratio. This study evaluated solution blow spinning (SBS) processing conditions for obtaining food-grade gelatin nanofibers from mammalian and fishery byproducts, such as pork skin gelatins (PGs) and high molecular weight fish skin gelatin (HMWFG). HMWFG had a highest intact collagen structure compared to PGs. PGs with different Bloom values, solution viscosities, and surface tensions were compared with HMWFG for their ability to produce nanofibers through SBS...
June 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28415467/poly-l-lactic-acid-and-polyurethane-nanofibers-fabricated-by-solution-blow-spinning-as-potential-substrates-for-cardiac-cell-culture
#12
Ewelina Tomecka, Michal Wojasinski, Elzbieta Jastrzebska, Michal Chudy, Tomasz Ciach, Zbigniew Brzozka
This paper presents a comparison and evaluation of cardiac cell proliferation on poly(l-lactic acid) (PLLA) and polyurethane (PU) nanofibrous mats fabricated by solution blow spinning (SBS). Three different cardiac cell lines: rat cardiomyoblasts (H9C2 line), human (HCM) and rat cardiomyocytes (RCM) were used for experiments. Cell morphology, orientation and proliferation were investigated on non-modified and protein-modified (fibronectin, collagen, gelatin, laminin, poly-l-lysine) surfaces of both types of nanofibers...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28069500/solution-blow-spinning-fibres-new-immunologically-inert-substrates-for-the-analysis-of-cell-adhesion-and-motility
#13
Rafaella T Paschoalin, Bruna Traldi, Gülcan Aydin, Juliano E Oliveira, Stephan Rütten, Luiz H C Mattoso, Martin Zenke, Antonio Sechi
The control of cell behaviour through material geometry is appealing as it avoids the requirement for complex chemical surface modifications. Significant advances in new technologies have been made to the development of polymeric biomaterials with controlled geometry and physico-chemical properties. Solution blow spinning technique has the advantage of ease of use allowing the production of nano or microfibres and the direct fibre deposition on any surface in situ. Yet, in spite of these advantages, very little is known about the influence of such fibres on biological functions such as immune response and cell migration...
March 15, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/27966857/a-review-of-the-fundamental-principles-and-applications-of-solution-blow-spinning
#14
John L Daristotle, Adam M Behrens, Anthony D Sandler, Peter Kofinas
Solution blow spinning (SBS) is a technique that can be used to deposit fibers in situ at low cost for a variety of applications, which include biomedical materials and flexible electronics. This review is intended to provide an overview of the basic principles and applications of SBS. We first describe a method for creating a spinnable polymer solution and stable polymer solution jet by manipulating parameters such as polymer concentration and gas pressure. This method is based on fundamental insights, theoretical models, and empirical studies...
December 28, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27956071/solution-blow-spun-polymer-a-novel-preclinical-surgical-sealant-for-bowel-anastomoses
#15
Nora G Kern, Adam M Behrens, Priya Srinivasan, Christopher T Rossi, John L Daristotle, Peter Kofinas, Anthony D Sandler
BACKGROUND: Solution blow spinning is a technique for depositing polymer fibers with promising potential use as a surgical sealant. This study assessed the feasibility and efficacy of solution blow spun polymer (BSP) for sealing bowel perforations in a mouse model of partial cecal transection. We then evaluated its use for reinforcing a surgical anastomosis in a preclinical piglet model. METHODS: Three commercially available surgical sealants (fibrin glue, polyethylene glycol (PEG) hydrogel, and cyanoacrylate) were compared to BSP in the ability to seal partially transected cecum in mice...
August 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27861896/preparation-of-zein-fibers-using-solution-blow-spinning-method
#16
Fei Liu, Roberto J Avena-Bustillos, Rachelle Woods, Bor-Sen Chiou, Tina G Williams, Delilah F Wood, Cristina Bilbao-Sainz, Wallace Yokoyama, Gregory M Glenn, Tara H McHugh, Fang Zhong
Zein fibers were successfully fabricated via solution blow spinning (SBS) using acetic acid as solvent. Surface tension, viscosity and modulus of zein solutions were respectively determined by force tensiometer and rheometer. Increases of these properties were observed with an increase of concentration from 20% to 35% (w/w). The fabrication conditions of zein fibers were initially investigated as a function of zein concentration (25% to 35% w/w), feed rate (0.04 to 0.1 mL/min) and air pressure (0.28 to 0.62 MPa)...
December 2016: Journal of Food Science
https://www.readbyqxmd.com/read/27482919/liquid-infused-poly-styrene-b-isobutylene-b-styrene-microfiber-coating-prevents-bacterial-attachment-and-thrombosis
#17
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
https://www.readbyqxmd.com/read/26369129/controlled-release-of-linalool-using-nanofibrous-membranes-of-poly-lactic-acid-obtained-by-electrospinning-and-solution-blow-spinning-a-comparative-study
#18
COMPARATIVE STUDY
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
https://www.readbyqxmd.com/read/26328414/antimicrobial-poly-lactic-acid-based-nanofibres-developed-by-solution-blow-spinning
#19
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
https://www.readbyqxmd.com/read/25585633/poly-lactic-acid-carbon-nanotube-fibers-as-novel-platforms-for-glucose-biosensors
#20
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
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