Academic literature on the topic 'Poly(vinyl alcohol) PVA hydrogels'

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Journal articles on the topic "Poly(vinyl alcohol) PVA hydrogels"

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Zheng, Jing Jing, and Xiao Liang Gui. "Swelling and Antibacterial Properties of Chitosan/Poly(vinyl alcohol) Hybrid Hydrogels." Applied Mechanics and Materials 672-674 (October 2014): 737–40. http://dx.doi.org/10.4028/www.scientific.net/amm.672-674.737.

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Chitosan (CTS) was added into poly (vinyl alcohol) (PVA) hydrogels to get their antibacterial properties. A series of CTS/PVA hybrid hydrogels were prepared by freezing/thawing method. The swelling properties of all hybrid hydrogels are better than those of the original PVA hydrogel. The CTS/PVA hybrid hydrogels show excellent antimicrobial performance towards Escherichia colis.
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Asa'di, Sima, Masoud Frounchi, and Susan Dadbin. "Nanomagnetic Poly(vinyl alcohol) Hydrogels." Advanced Materials Research 829 (November 2013): 539–43. http://dx.doi.org/10.4028/www.scientific.net/amr.829.539.

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Surface modified magnetic nanoparticles (M-NPs) were synthetized and stabilized in poly (vinyl-alcohol) solution. The solutions with various magnetic nanoparticles contents were gamma-irradiated and magnetic poly (vinyl-alcohol) (M-PVA) hydrogels were synthesized. The magnetic hydrogels and also the un-irradiated magnetic poly (vinyl alcohol) nanocomposite films were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), Fourier transform infrared spectroscopy (FTIR) and mechanical measurement. The M-NPs were uniformly dispersed in th
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Zhang, Mian Mian, Yu Xi Chen та Xia Ma. "Swelling Kinetic Study of Poly(Vinyl Alcohol)/Poly(γ-Glutamic Acid) Blend Hydrogel". Advanced Materials Research 1095 (березень 2015): 423–26. http://dx.doi.org/10.4028/www.scientific.net/amr.1095.423.

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In this article, the swelling behavior and swelling kinetic of poly (vinyl alcohol)/poly (γ-glutamic acid) hydrogel were investigated. It was found that the PGA/PVA hydrogels revealed the pH-sensitive property and exhibited a faster swelling at pH7.4. The study of swelling kinetics revealed that the swelling mechanism followed the non-Fickian diffusion mechanism.
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Lu, Jingqiong, Yinhui Li, Deng Hu, et al. "Synthesis and Properties of pH-, Thermo-, and Salt-Sensitive Modified Poly(aspartic acid)/Poly(vinyl alcohol) IPN Hydrogel and Its Drug Controlled Release." BioMed Research International 2015 (2015): 1–12. http://dx.doi.org/10.1155/2015/236745.

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Modified poly(aspartic acid)/poly(vinyl alcohol) interpenetrating polymer network (KPAsp/PVA IPN) hydrogel for drug controlled release was synthesized by a simple one-step method in aqueous system using poly(aspartic acid) grafting 3-aminopropyltriethoxysilane (KH-550) and poly(vinyl alcohol) (PVA) as materials. The hydrogel surface morphology and composition were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The thermal stability was analyzed by thermogravimetric analysis (TGA). The swelling properties and pH, temperature, and salt sen
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Devi, Ch Shanti, S. Manimukta Devi, and N. Shubhaschandra Singh. "Removal of Selective Metal Ions from Water with Hydroxy Propyl Cellulose Hydrogel." Asian Journal of Chemistry 31, no. 3 (2019): 602–6. http://dx.doi.org/10.14233/ajchem.2019.21691.

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In this study, environmentally friendly hydrogels prepared from hydroxy propyl cellulose hydrogels blended with poly(vinyl alcohol) (PVA) and poly(vinyl pyrrolidone) (PVP) were employed to absorb selected metal ions of Cu and Fe to find potential applications in removal of metal ion from water or in wastewater treatment. Highest adsorption capacity of hydroxy propyl cellulose hydrogels blended with PVA or PVP is shown at 0.04 % (w/v) of the metal ion solutions. Hydroxy propyl cellulose hydrogel when blended PVA has shown greater adsorption of Fe(III) ion than Cu(II) ion at higher pH. Hydroxy p
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Diken, Mehmet Emin, Berna Koçer Kizilduman, Begümhan Yilmaz Kardaş, et al. "Synthesis, characterization, and their some chemical and biological properties of PVA/PAA/nPS hydrogel nanocomposites: Hydrogel and wound dressing." Journal of Bioactive and Compatible Polymers 35, no. 3 (2020): 203–15. http://dx.doi.org/10.1177/0883911520921474.

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The nanocomposite hydrogels were prepared by dispersing of the nanopomegranate seed particles into poly(vinyl alcohol)/poly(acrylic acid) blend matrix in an aqueous medium by the solvent casting method. These hydrogels were characterized using scanning electron microscopy, Fourier transform infrared spectra, differential scanning calorimetry, and optical contact angle instruments. The nanopomegranate seed, blend, and hydrogel nanocomposites were tested for microbial activity. In addition, cytocompatibilities of these blend and hydrogel nanocomposites/composites were tested on human lymphocyte
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Luo, Xiao Bing, Ming Feng Ma, and Xian Ju Zhou. "Hydroxyapatite-Poly(Vinyl Alcohol)-Sodium Alginate Porous Hydrogels with Poly(Vinyl Alcohol) Surface Layer Used for Articular Cartilage Repair." Materials Science Forum 852 (April 2016): 1155–61. http://dx.doi.org/10.4028/www.scientific.net/msf.852.1155.

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The double-layered PVA/nanohydroxyapatite (nHA)-poly (vinyl alcohol)(PVA)-sodium alginate (SA) porous composite scaffolds used as synthetic articular cartilage were prepared by the freeze-thawing method, gas foaming method and crosslink method of Ca2+ ion, i.e., upper PVA layer for the cartilage substitute and underlying SA30 porous hydrogels for bone bonding. The microstructure and morphology of composite hydrogels were characterized using scanning electronic microscopy (SEM).It had high porosity and uniform pores. The content of HA in SA30 matrix were tested by Energy-dispersive X-ray spectr
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Nkhwa, Shathani, Kristo Fernando Lauriaga, Evren Kemal, and Sanjukta Deb. "Poly(vinyl alcohol): Physical Approaches to Designing Biomaterials for Biomedical Applications." Conference Papers in Science 2014 (March 20, 2014): 1–7. http://dx.doi.org/10.1155/2014/403472.

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Poly(vinyl alcohol) is a non-toxic, biosynthetic polymer and biocompatible polymer that has the ability to form hydrogels either via chemical or physical crosslinking. Whilst chemical crosslinking provides greater control on the properties of the resultant hydrogel, physically crosslinked hydrogels or blends with other biocompatible polymers are more suited for biomedical applications. In this paper we report a systematic study on the effect of varying concentrations of PVA, physical methods of crosslinking, and PVA-gelatin and PVA-PVP blends on the physical and mechanical properties of the hy
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Zitouni, Mohammed Amine, and Sofia Borsali Kara Slimane. "Preparation and Characterization of Hydrogels Based on Chitsoan/Polyvinyl Alcohol Blends." Advanced Materials Research 1105 (May 2015): 203–7. http://dx.doi.org/10.4028/www.scientific.net/amr.1105.203.

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In this study, a series of poly (vinyl alcohol) (PVA)/chitosan (CS) hydrogels with different weight ratio of PVA to CS were prepared by freezing-thawing (F-T) method. The structure, morphology, and crystallinity of hydrogels were investigated by Fourier Transform Infrared (FT-IR), scanning electron microscopy (SEM) and differential scanning calorimetry (DSC). FTIR demonstrated the presence of strong intermolecular hydrogen bonds between CS and PVA molecules. SEM images showed that the higher the chitosan, the greater the porous size of the hydrogel and DSC confirmed that crystallinity is highe
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Zhang, Yabin, Lei Ye, Man Cui, et al. "Physically crosslinked poly(vinyl alcohol)–carrageenan composite hydrogels: pore structure stability and cell adhesive ability." RSC Advances 5, no. 95 (2015): 78180–91. http://dx.doi.org/10.1039/c5ra11331h.

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Dissertations / Theses on the topic "Poly(vinyl alcohol) PVA hydrogels"

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Hsu, Hsingching. "Ultrasonic wave propagation in poly(vinyl alcohol) and articular cartilage." Thesis, Available online, Georgia Institute of Technology, 2005:, 2004. http://etd.gatech.edu/theses/available/etd-06292004-151052/unrestricted/hsu%5Fhsingching%5Fc%5F200407%5Fms.pdf.

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Thesis (M.S.)--School of Mechanical Engineering, Georgia Institute of Technology, 2005. Directed by Marc Levenston.<br>Marc Levenston, Committee Co-Chair ; Yves Berthelot, Committee Co-Chair ; Robert Guldberg, Committee Member. Includes bibliographical references.
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Liang, Chun Ying. "Poly(vinyl alcohol) PVA hydrogel characterization as a potential nucleus pulposus replacement candidate." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19277.

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Chronic lower back pain is a clinical manifestation of vertebral disc degeneration. An emerging technique, nucleoplasty, aims to target early stages of disc degeneration. It is envisioned to inject a liquid-state polymer, poly(vinyl alcohol) hydrogels, into the nuclear cavity and allowed to cure in-situ. Two formulations of poly(vinyl alcohol) hydrogels were investigated for its suitability as an injectable polymer. Therefore, its swelling ability, stiffness, required extrusion pressures and temperature dependent curing ra
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Spindura, Jillian. "The response of poly (vinyl alcohol) to humidity." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365748.

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Cha, Won-ill. "Physicochemical studies on poly (vinyl alcohol) hydrogels." Kyoto University, 1994. http://hdl.handle.net/2433/168897.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである<br>Kyoto University (京都大学)<br>0048<br>新制・論文博士<br>博士(工学)<br>乙第8528号<br>論工博第2849号<br>新制||工||958(附属図書館)<br>UT51-94-J257<br>(主査)教授 筏 義人, 教授 升田 利史郎, 教授 池内 健<br>学位規則第4条第2項該当
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Croot, Robert Arthur. "The characterisation and adsorption of vinyl alcohol vinyl acetate copolymers." Thesis, University of Bristol, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303767.

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Cauich-Rodriguez, Juan Valerio. "Hydrogels based on poly(vinyl alcohol-vinyl acetate) blends for biomedical applications." Thesis, Queen Mary, University of London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267577.

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Cheng, Zhihan. "MECHANICALLY STRONG/ LOW FLAMMABILITY POLY (VINYL ALCOHOL) AEROGELS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case155266644473611.

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Bernhard, Kathleen C. "Methods to create and characteristics of porous poly(vinyl) alcohol for the purpose of facial implants." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53112.

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Facial implants are becoming more common in America and across the world. In the United States last year, over 260,000 augmentation and reconstruction surgeries were performed on facial cartilage areas, while over two million soft tissue fillers were administered. The current implants on the market, though, are deficient in three major areas: they are too rigid, susceptible to migration, and require a large incision. Alternatively, dermal fillers lack shape and biodegrade too quickly. Poly(vinyl) alcohol (PVA) cryogel is a promising hydrogel alternative due to its softness, durable nature
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Vidović, Elvira. "The development of bioabsorbable hydrogels on the basis of polyester grafted poly(vinyl alcohol)." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=982593821.

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Koch, Meredith Ericson. "Mechanical Optimization Of Poly(vinyl Alcohol) Cryogels To Activate Osteochondral Mechanotransduction Pathways." ScholarWorks @ UVM, 2014. http://scholarworks.uvm.edu/graddis/305.

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Tissue engineering and regenerative medicine have emerged as viable approaches to repairing osteochondral tissue damage, especially with the implementation of biomaterials and mesenchymal stem cells (MSCs). Poly(vinyl alcohol) (PVA) is a synthetic and non-biodegradable polymer that has received attention as a tissue engineering scaffold and cartilage replacement due to its inherent viscoelasticity and biocompatibility. This work investigated the use of mechanical cues to trigger mechanotransduction pathways and thereby guide human MSCs towards a desired differentiation lineage. PVA scaffolds w
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Books on the topic "Poly(vinyl alcohol) PVA hydrogels"

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Silvia, Patachia, ed. Poly (vinyl alcohol)(pva)-based polymer membranes. Nova Science Publishers, 2009.

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Silvia, Patachia, ed. Poly (vinyl alcohol)(pva)-based polymer membranes. Nova Science Publishers, 2009.

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Book chapters on the topic "Poly(vinyl alcohol) PVA hydrogels"

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Xu, Yi, Gang Zhou, Lei Liu, et al. "Synthesis and characterization of high-transparent poly (vinyl alcohol) / poly(vinyl pyrrolidone) (PVA/PVP) hydrogels." In IFMBE Proceedings. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-29305-4_19.

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Satoh, Kotaro. "Poly(vinyl alcohol) (PVA)." In Encyclopedia of Polymeric Nanomaterials. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-29648-2_246.

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Satoh, Kotaro. "Poly(vinyl alcohol) (PVA)." In Encyclopedia of Polymeric Nanomaterials. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-36199-9_246-1.

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Ofstead, Ronald F., and Claudia I. Poser. "Semicrystalline Poly(vinyl alcohol) Hydrogels." In Polymers in Aqueous Media. American Chemical Society, 1989. http://dx.doi.org/10.1021/ba-1989-0223.ch004.

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Suzuki, Atsushi, and Teruo Murakami. "High-Strength Poly(Vinyl Alcohol) Hydrogels for Artificial Cartilage." In Encyclopedia of Biocolloid and Biointerface Science 2V Set. John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119075691.ch21.

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Lim, K. S., Y. Ramaswamy, M. H. Alves, R. A. Green, L. A. Poole-Warren, and P. J. Martens. "Optimization of Crosslinking Parameters for Biosynthetic Poly(vinyl-alcohol)-Tyramine Hydrogels." In IFMBE Proceedings. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19387-8_69.

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Wang, Y. J., F. J. Liou, S. W. Tsai, and G. G. C. Niu. "pH-Sensitive Hydrogels Based on Hydroxyethyl Methacrylate and Poly(vinyl alcohol)—Methacrylate." In ACS Symposium Series. American Chemical Society, 1993. http://dx.doi.org/10.1021/bk-1994-0540.ch022.

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Wang, Sen, Heng Li, ZhiMing Qi, MengHong Yin, ChengWei Wu, and Wei Zhang. "Effects of Freezing-Thawing Cycles on Mechanical Strength of Poly (Vinyl Alcohol) Hydrogels." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8331-1_58.

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Lee, Heon, Ki Yeon Yang, Sung Hoon Hong, C. D. Schaper, and Gun Young Jung. "Nano-Imprint Lithography of 100nm Sized Patterns Using Water Soluble PVA, Poly(Vinyl Alcohol), Template." In Solid State Phenomena. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-30-2.661.

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Fujimoto, Keiji, Masao Minato, and Yoshito Ikada. "Poly(vinyl alcohol) Hydrogels Prepared under Different Annealing Conditions and Their Interactions with Blood Components." In ACS Symposium Series. American Chemical Society, 1993. http://dx.doi.org/10.1021/bk-1994-0540.ch020.

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Conference papers on the topic "Poly(vinyl alcohol) PVA hydrogels"

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Cadena-Nogales, Ana, Samara Mishelle Ona, Jose Alvarez Barreto, Marco Leon Dunia, Miguel Angel Mendez, and Daniela Viteri. "Poly(vinyl alcohol) (PVA) in hydrogels, a molecular perspective." In 2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM). IEEE, 2019. http://dx.doi.org/10.1109/etcm48019.2019.9014900.

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de Lima, Gabriel, Declan Devine, Caroline de Alencar, Amanda Junqueira, Ramon Emanuel, and Michael Nugent. "Preparation and Characterization of Novel Poly(Vinyl Alcohol) (PVA) and Poly(Acrylic Acid) (PAA) Hydrogels for Sensitive Hydrogels." In 1st International Electronic Conference on Materials. MDPI, 2014. http://dx.doi.org/10.3390/ecm-1-d006.

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Nakashima, K., Y. Sawae, and T. Murakami. "Wear Reduction by Functional Protein Boundary Film on Poly(Vinyl Alcohol) Hydrogel." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63623.

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Poly(vinyl alcohol) (PVA) hydrogel is a candidate material for artificial cartilage of joint prostheses. From previous researches [1–4] it is shown that the wear of PVA hydrogel depends on the concentration of proteins in lubricants. Therefore it is considered that the adsorbed film formation by protein of albumin or γ-globulin influences upon the wear grade of PVA hydrogel. The remaining film of proteins on the glass plate was observed in fluorescence microscope. The adsorption condition of albumin and γ-globulin was different. The adsorbed film with effective reduction of the wear showed coo
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Kosukegawa, Hiroyuki, Shuya Shida, Yoko Hashida, and Makoto Ohta. "Mechanical Properties of Tube-Shaped Poly (Vinyl Alcohol) Hydrogel Blood Vessel Biomodel." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30892.

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Biomodels, which mimic the shape and motion of blood vessels, have been developed for clinical training in endovascular intervention and for the technical development of interventional devices such as stents. The present authors have developed a biomodel made of poly (vinyl alcohol) hydrogel (PVA-H), which has good transparency, low surface friction, and dynamic viscoelasticity similar to that of arteries. However, evaluation of its behavior as an arterial biomodel has not been carried out. In order to develop a PVA-H biomodel which can accurately mimic the motion of blood vessels, it is neces
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Prabhudesai, S. A., Mathias B. Lawrence, S. Mitra, J. A. E. Desa, and R. Mukhopadhyay. "Dynamics in poly vinyl alcohol (PVA) based hydrogel: Neutron scattering study." In NANOFORUM 2014. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4917633.

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Islam, Mohammad Hamidul, Hirohisa Morikawa, Hirofusa Shirai, and Toshihiro Hirai. "Slip of Newtonian Fluid in the Polymer Hydrogel Tube Wall." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45159.

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Poly(vinyl alcohol) (PVA) hydrogel tube was prepared from PVA-dimethylsulfoxide/water solution by repetitive cooling method. The inner surface of the PVA hydrogel tube was chemically modified with poly(acrylic acid) (PAA). Slip of Newtonian fluid in intact and modified PVA hydrogel tubes (sub-millimeter inner diameter) was studied. The slip was inferred by observing the motion of micron-sized spherical monodispersed polystyrene particles suspended in the flowing water by using an optical microscope from very low to medium flow rate. The particle velocity was estimated by both particle tracking
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Shimizu, Yasutomo, Lei Liu, Hiroyuki Kosukegawa, et al. "Deformation of Stenotic Blood Vessel Model Made From Poly (Vinyl Alcohol) Hydrogel by Hydrostatic Pressure." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66657.

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Vascular plaque deformation reduces blood flow, increases arterial embolism risk, and may lead to ischemic stroke. Plaque stiffness varies widely and is an important factor influencing both plaque and parent artery deformation. These geometric changes affect local hemodynamics, which impact plaque initiation influencing disease progression. However, most previous studies used non-elastic stenotic vessel models. For more realistic analysis, we constructed a stenosis model comprising an elastic poly (vinyl alcohol) hydrogel (PVA-H) parent artery and plaque of variable stiffness. Our previous stu
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Wang, Zhihua, John O’Brien, Pranav Shrotriya, and Qingze Zou. "Mesoscale Large Frequency-Range Characterization of the Elastic Modulus of Poly(Vinyl Alcohol) Hydrogel Using a Control-Integrated Indentation System." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53807.

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Due to the desirable properties like biocompatibility and solubility in water, Poly (Vinyl Alcohol) (PVA) has been widely utilized in a broad range of areas including material research, biomedicine and pharmacy. Although its mechanical properties have been widely studied, few of the previous work has focused on its frequency dependent elastic modulus. In this paper, the frequency dependent elastic modulus of PVA samples (based on the physical crosslinking method) at mesoscale was investigated in experiments. An indentation system is designed and developed. And moreover, a recently-developed it
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Kosukegawa, Hiroyuki, Chihaya Kiyomitsu, and Makoto Ohta. "Control of Wall Thickness of Blood Vessel Biomodel Made of Poly (Vinyl Alcohol) Hydrogel by a Three-Dimensional-Rotating Spin Dip-Coating Method." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64619.

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To control the thickness of a PVA-H biomodel of human arteries and veins (150 to 800 μm in thickness), a three-dimensional-rotating spin dip-coating apparatus was fabricated. A straight aluminum cylinder (Ra = 0.16 μm) was employed as substrate. Spin dip-coating was carried out in a cooling chamber at 10°C for 1 hour, and then the substrate was quenched at −30°C for gelation of PVA. The thickness of the deposited PVA-H was measured by using a confocal laser displacement meter. Under the experimental conditions employed, PVA-H with a thickness over 30 μm was obtained. The thickness linearly inc
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Kobayashi, Naohiro, Yasutomo Shimizu, Ryota Nagano, Simon Tupin, Makoto Ito, and Makoto Ohta. "Development and Evaluation of PVA-H 3D Printed Blood Vessel Biomodels With Several Stiffness." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23525.

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Abstract Biomodels, which are models of tissues such as blood vessels, have recently come into high demand for surgical training or medical device assessment use. Since the stiffness of blood vessels is not uniform, reproducing this nonuniformity would be advantageous to producing more realistic models, and to do this, we used a poly (vinyl alcohol) hydrogel (PVA-H) 3D printer. As a material, recently PVA-H has received increasing attention. This printing technique may be suitable for fabricating models composed of parts exhibiting different levels of stiffness (multipart models). However, the
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