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显示 31-60 共 71 条结果 关于 "10853" 范围 论文
Xiaobing Shen et al.
Journal of nanoscience and nanotechnology, 14(7), 5258-5265 (2014-04-25)
This study reports on the use of electrospun polyvinyl alcohol (PVA) nanofiber mats loaded with prazosin hydrochloride (PRH) as a transdermal drug delivery system, investigating the morphology of electrospun PVA nanofibers, the in vitro release characteristics of the drug from
Ashok A Kumar et al.
American journal of hematology, 90(1), 31-36 (2014-09-30)
This paper demonstrates the enrichment of reticulocytes by centrifuging whole blood through aqueous multiphase systems (AMPSs)-immiscible phases of solutions of polymers that form step-gradients in density. The interfaces of an AMPS concentrate cells; this concentration facilitates the extraction of blood
Yuming Dong et al.
Pharmaceutical development and technology, 19(8), 960-967 (2013-12-11)
High concentration of 5-amino salicylic acid (5-ASA) in the distal ileum and colon is necessary for the treatment of inflammatory bowel disease (IBD). The control of small molecules, drugs, released from a polymeric matrix remains a great challenge. To study
Cijun Shuai et al.
Biofabrication, 5(1), 015014-015014 (2013-02-07)
A tetragonal polyvinyl alcohol (PVA) scaffold with 3D orthogonal periodic porous architecture was fabricated via selective laser sintering (SLS) technology. The scaffold was fabricated under the laser power of 8 W, scan speed of 600 mm min(-1), laser spot diameter of 0.8 mm
Wei Li et al.
Carbohydrate polymers, 92(2), 2232-2238 (2013-02-13)
Poly(vinyl alcohol) (PVA)/sodium alginate (ALG)/organic rectorite (OREC) composite nanofibrous mats are fabricated by electrospinning aqueous solutions with different mixing ratios. Both good fiber shape and three-dimensional structure of nanofibrous mats can be observed by Field Emission Scanning Electron Microscopy. Energy-dispersive
XiaoJun Zuo et al.
Carbohydrate polymers, 92(2), 2181-2186 (2013-02-13)
Novel poly(vinyl alcohol)/citric acid/chitosan (PVA/CA/CHT, PCC) beads were prepared as an adsorbent for the removal of trivalent chromium (Cr(3+)) in aqueous solutions. PCC beads with different mass ratios (I, II, III, IV, V, ad VI) between PVA/CA/CHT were evaluated for
Deepti Simon et al.
Oral surgery, oral medicine, oral pathology and oral radiology, 115(3), e7-14 (2013-03-05)
Bioceramics and their composites have found myriad applications in medicine as superlative osteoalloplasts. Their potential to function as a biocompatible resorbable drug delivery system is being explored. The present study is a preliminary investigation into the efficacy of these indigenously
D Ballah et al.
Clinical radiology, 68(11), 1097-1106 (2013-08-06)
To evaluate the relationship between intraoperative blood loss and juvenile nasopharyngeal angiofibroma (JNA) vascular supply and tumour stage in patients who underwent superselective external carotid artery (ECA) embolization. This series is unique in that all embolizations were performed by dedicated
Sungmin Woo et al.
Radiology, 269(2), 594-602 (2013-06-27)
To retrospectively compare safety and effectiveness of embolic agents polyvinyl alcohol (PVA) particles versus n-butyl-2-cyanoacrylate (NBCA) for bronchial artery embolization (BAE) for control of hemoptysis. Institutional review board approved this retrospective study; informed consent was waived. From January 2005 to
Lihong Chen et al.
Environmental science and pollution research international, 20(9), 6085-6095 (2013-03-29)
An environmentally friendly and inexpensive substitute to the widely used poly(vinyl alcohol) (PVA) has been developed from soy proteins for textile warp sizing. Textile processing is the major source of industrial water pollution across the world, and sizing and desizing
Selby Maphutha et al.
Scientific reports, 3, 1509-1509 (2013-03-23)
A carbon nanotube (CNT) integrated polymer composite membrane with a polyvinyl alcohol barrier layer has been prepared to separate oil from water for treatment of oil-containing waste water. The CNTs were synthesised using chemical vapour deposition, and a phase inversion
Ayşegül Verim et al.
The Laryngoscope, 124(7), 1529-1535 (2013-11-29)
To analyze the differences between biodegradable and nondegradable nasal dressings with regard to their effects on wound healing in the short and medium term and on surgical outcomes in the long term, after endoscopic sinus surgery (ESS). A prospective, randomized
Vassiliki A Kosma et al.
Materials science & engineering. C, Materials for biological applications, 33(4), 2175-2191 (2013-03-19)
Solution growth of apatite its precursors in the presence of urea commercial gelatin is found to lead, under appropriate conditions, to a rich spectrum of morphologies, among them high aspect ratio needles in uniform sturdy spherulitic assemblies resulting from a
Yingying Sun et al.
Environmental science and pollution research international, 20(8), 5797-5805 (2013-03-09)
Centrifugal mother liquid (CML) is one of the main sources of wastewater produced during the production of polyvinyl chloride in chlor-alkali industry. CML is a typical poorly biodegradable organic wastewater, containing many kinds of refractory pollutants. Specifically, it contains dissolved
Inna Y Stetciura et al.
Langmuir : the ACS journal of surfaces and colloids, 29(12), 4140-4147 (2013-03-09)
Surface-enhanced Raman scattering (SERS) microspectroscopy is a very promising label-free, noncontact, and nondestructive method for real-time monitoring of extracellular matrix (ECM) development and cell integration in scaffolds for tissue engineering. Here, we prepare a new type of micrometer-sized SERS substrate
Yahya Hamzeh et al.
Carbohydrate polymers, 94(1), 577-583 (2013-04-03)
In this study, the application of different dosages of low and high molecular weights (MW) of chitosan (Ch), cationic starch (CS) and poly vinyl alcohol (PVA) were systematically investigated using old corrugated carton (OCC) furnishes. Various sequences of above-mentioned polymeric
Praneet Opanasopit et al.
Pharmaceutical development and technology, 18(5), 1140-1147 (2012-10-05)
The aim of this study was to prepare, characterize and evaluate electrospun polyvinyl alcohol (PVA) and cellulose acetate (CA) nanofibers loaded with capsicum extract (CE) for use in topical skin treatments. CE, 0.5, 1 or 2 wt %, was loaded
SuRak Eo et al.
Journal of plastic, reconstructive & aesthetic surgery : JPRAS, 68(1), 104-112 (2014-12-03)
Fifteen rabbits were used to assess the effect of Lipo-PGE1 on neovascularization. Merocel(®) and Alloderm(®) of the same size were implanted separately under the back skin to act as matrices for vessel growth. Lipo-PGE1 was injected intravenously for 2 weeks
Jianwen Hao et al.
Journal of hazardous materials, 244-245, 348-356 (2012-12-29)
By changing -COOH content in poly(acrylic acid-co-methacryloxypropyl trimethoxy silane (poly(AA-co-γ-MPS)), a series of PVA/SiO(2) cation exchange membranes are prepared from sol-gel process of poly(AA-co-γ-MPS) in presence of poly(vinyl alcohol) (PVA). The membranes have the initial decomposition temperature (IDT) values of
Beatriz Ferreira de Carvalho Patricio et al.
Journal of biomedical nanotechnology, 10(7), 1242-1248 (2014-05-09)
Bone metastasis is responsible for up to 99% of bone tumors. As no cure has yet to be discovered, available treatments simply strive to improve quality of life. One of such treatments is the use of EDTMP (ethylenediamine-tetramethylenephosphonic acid) labeled
Influence of storage temperature and moisture on the performance of microsphere/hydrogel composites.
Yan Wang et al.
International journal of pharmaceutics, 454(1), 310-315 (2013-07-03)
The current study involved investigation of the effect of storage temperature and moisture on the performance of poly(lactide-co-glycolide) (PLGA) microsphere/poly(vinyl-alcohol) (PVA) hydrogel composites. Physical aging occurred in composites stored at 25°C due to structural relaxation. The glass transition temperature (Tg)
Yani Guo et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 48(5), 518-525 (2013-02-07)
The degradation characteristics of the new mixed strains isolated from a de-sizing process which could degrade PVA thoroughly were studied. The interrelation of seven kinds of single bacterium separated from mixed strains was studied through combination experiments. The degradation process
Hsin-Yi Lin et al.
Biomedical materials (Bristol, England), 8(2), 025009-025009 (2013-02-23)
Collagen and its blends, collagen/polyvinyl alcohol (PVA) and collagen/chitosan/PVA, were made into nanofibers by electrospinning. The nanofibrous matrices were evaluated for their potential as skin substitutes. The addition of PVA to collagen increased the swelling ratio of the nanofibers, their
Yuichi Nogi et al.
International journal of systematic and evolutionary microbiology, 64(Pt 4), 1149-1153 (2014-01-11)
A polyvinyl-alcohol-degrading marine bacterium was isolated from plastic rope litter found in Tokyo Bay, Japan. The isolated strain, Zumi 95(T), was a Gram-reaction-negative, non-spore-forming and facultatively anaerobic chemo-organotroph. The major respiratory quinone was Q-10. The predominant fatty acids were C18 : 1ω7c
Pedro Paulo Martins de Oliveira et al.
The Journal of thoracic and cardiovascular surgery, 147(4), 1405-1410 (2013-09-03)
Adhesions may increase the incidence of lethal complications of cardiac reoperations, which account for up to 20% of all open-heart surgeries. Herein, we describe the use of a polyvinyl alcohol membrane (PVAM) as a pericardial alternative and describe its performance
Piotr Hanczyc et al.
The journal of physical chemistry. B, 117(10), 2947-2954 (2013-02-15)
A stretched poly(vinyl alcohol) (PVA) film provides a unique matrix that enables also short DNA oligonucleotide duplex to be oriented and studied by linear dichroism (LD). This matrix further allows controlling DNA secondary structure by proper hydration (A or B
Susnata Bera et al.
Journal of nanoscience and nanotechnology, 13(1), 300-305 (2013-05-08)
Polymer capped CdSe nanoparticles have been grown using a simple chemical process. Transmission electron microscopy study revealed the formation of isolated CdSe nanoparticles encapsulated in polyvinyl alcohol matrix. The optical band gap of nanoparticle has been found to be blue
Peng Li et al.
Journal of environmental sciences (China), 25(10), 1972-1979 (2014-02-06)
Starch/polyvinyl alcohol (PVA) blended materials for using as a solid carbon source (SCS) were prepared by blending PVA and gelatinized starch in an aqueous solution system, in which PVA served as framework material and starch as carbon source. The optimization
Qingguo Xu et al.
Journal of controlled release : official journal of the Controlled Release Society, 170(2), 279-286 (2013-06-12)
Mucus typically traps and rapidly removes foreign particles from the airways, gastrointestinal tract, nasopharynx, female reproductive tract and the surface of the eye. Nanoparticles capable of rapid penetration through mucus can potentially avoid rapid clearance, and open significant opportunities for
Ezzatollah Fathi et al.
Journal of tissue engineering and regenerative medicine, 7(9), 697-707 (2012-06-08)
Hydrogels are currently used as interesting constructs for the delivery of proteins. In this study, a novel polyvinyl alcohol-dextran (PVA-Dex) blend hydrogel was used for controlled delivery of basic-fibroblast growth factor (bFGF). These biocompatible constructs were sutured to the epicardium
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