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Physico-chemical properties of hemosorption carbon surface. 血液吸附碳表面的物理化学性质。
Biomaterials, artificial cells, and artificial organs Pub Date : 1989-01-01 DOI: 10.3109/10731198909118276
P Osadchy, V Sigal
{"title":"Physico-chemical properties of hemosorption carbon surface.","authors":"P Osadchy, V Sigal","doi":"10.3109/10731198909118276","DOIUrl":"https://doi.org/10.3109/10731198909118276","url":null,"abstract":"","PeriodicalId":77498,"journal":{"name":"Biomaterials, artificial cells, and artificial organs","volume":"17 2","pages":"153-5"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10731198909118276","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13916145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Immobilized enzyme activity improvement in glutaraldehyde method. 戊二醛法固定化酶活性的提高。
Biomaterials, artificial cells, and artificial organs Pub Date : 1989-01-01
C Z Chen, Y T Yu
{"title":"Immobilized enzyme activity improvement in glutaraldehyde method.","authors":"C Z Chen, Y T Yu","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77498,"journal":{"name":"Biomaterials, artificial cells, and artificial organs","volume":"17 3","pages":"329-34"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13655805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of enterosorption on animal lifespan. 肠道吸收对动物寿命的影响。
Biomaterials, artificial cells, and artificial organs Pub Date : 1989-01-01 DOI: 10.3109/10731198909118290
V V Frolkis, V G Nikolaev, G I Paramonova, E V Shchorbitskaya, L N Bogatskaya, A S Stupina, A I Kovtun, V E Sabko, V M Shaposhnikov, K K Muradian
{"title":"Effect of enterosorption on animal lifespan.","authors":"V V Frolkis,&nbsp;V G Nikolaev,&nbsp;G I Paramonova,&nbsp;E V Shchorbitskaya,&nbsp;L N Bogatskaya,&nbsp;A S Stupina,&nbsp;A I Kovtun,&nbsp;V E Sabko,&nbsp;V M Shaposhnikov,&nbsp;K K Muradian","doi":"10.3109/10731198909118290","DOIUrl":"https://doi.org/10.3109/10731198909118290","url":null,"abstract":"<p><p>Experiments were performed on Wistar male rats, starting from the 28th month of age. The effect of dietary sorbent (non coated nitrogen-containing carbon administered as 10 day courses at 1 month intervals in dosage of 10 ml/kg) on lifespan and a number of biological indices were studied. Enterosorption resulted in the increase of mean and maximal lifespan by 43 and 34% respectively. Analysis of the effect of enterosorption on activity of microsomal enzymes, intensity of total RNA and protein biosynthesis, lipid metabolism, formation of free radicals etc. showed that it produced a positive influence on the functional state of the studied systems and increased the organism's adaptive capacities. Enterosorption was found to delay the rate of onset of age-related structural changes in the organs and tissues.</p>","PeriodicalId":77498,"journal":{"name":"Biomaterials, artificial cells, and artificial organs","volume":"17 3","pages":"341-51"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10731198909118290","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13626412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Zeta potential and the adhesion of oral streptococci to polymethylmethacrylate. Zeta电位与口腔链球菌对聚甲基丙烯酸甲酯的粘附。
Biomaterials, artificial cells, and artificial organs Pub Date : 1989-01-01 DOI: 10.3109/10731198909118853
H M Uyen, H C van der Mei, A H Weerkamp, H J Busscher
{"title":"Zeta potential and the adhesion of oral streptococci to polymethylmethacrylate.","authors":"H M Uyen,&nbsp;H C van der Mei,&nbsp;A H Weerkamp,&nbsp;H J Busscher","doi":"10.3109/10731198909118853","DOIUrl":"https://doi.org/10.3109/10731198909118853","url":null,"abstract":"<p><p>Adhesion of Candida albicans to the acrylic fitting surface of dentures can lead to the development of denture induced stomatitis and is suggested to be preceeded by the adhesion of indegeneous oral bacteria. Bacterial adhesion can be considered as a result of attractive van der Waals and repulsive electrostatic forces. In this paper we investigate the role of electrostatic interactions in the adhesion of oral streptococci to polymethylmethacrylate (PMMA), the most commonly employed denture-base material. Zeta potentials of the bacterial strains as well as of PMMA fillings were reduced by increasing the ionic strength in the buffer suspension, causing an elevated number of adhering S. mitis, S. sanguis and S. mutans. As streptococcal adhesion is suggested to be a prerequisite for the subsequent adhesion of Candida albicans, the use of more negatively charged denture-base materials can be recommended in order to prevent streptococcal adhesion and therewith adhesion of candidae, and the occurrence of denture-induced stomatitis.</p>","PeriodicalId":77498,"journal":{"name":"Biomaterials, artificial cells, and artificial organs","volume":"17 4","pages":"385-91"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10731198909118853","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13832816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Indications of plasmapheresis and selection of different substitution solutions. 血浆置换的适应症和不同替代溶液的选择。
Biomaterials, artificial cells, and artificial organs Pub Date : 1989-01-01 DOI: 10.3109/10731198909118265
R Bambauer, G A Jutzler, D Albrecht, H E Keller, M Kohler
{"title":"Indications of plasmapheresis and selection of different substitution solutions.","authors":"R Bambauer,&nbsp;G A Jutzler,&nbsp;D Albrecht,&nbsp;H E Keller,&nbsp;M Kohler","doi":"10.3109/10731198909118265","DOIUrl":"https://doi.org/10.3109/10731198909118265","url":null,"abstract":"<p><p>Substitution solutions used for plasmapheresis (PH) may be human albumin, serum protein conserves or plasma. 746 plasmapheresis carried out on 88 patients with a variety of diseases were examined and the side effects due to the substitution solutions were investigated. Side effects occurred in less than 10% of the cases where the four substitution solutions were used. The least side effects were observed in treatments using human albumin as substitution. Side effects increased for serum protein conserves, followed lyophilised plasma and were highest for fresh frozen plasma. In view of these possible side effects the criteria for PH should be strictly observed and the substitution solution should meet clinical requirements.</p>","PeriodicalId":77498,"journal":{"name":"Biomaterials, artificial cells, and artificial organs","volume":"17 1","pages":"9-26"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10731198909118265","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13916141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
The detoxication with bioselective carbon sorbents. 生物选择性碳吸附剂解毒。
Biomaterials, artificial cells, and artificial organs Pub Date : 1989-01-01 DOI: 10.3109/10731198909118277
S V Mikhalovsky
{"title":"The detoxication with bioselective carbon sorbents.","authors":"S V Mikhalovsky","doi":"10.3109/10731198909118277","DOIUrl":"https://doi.org/10.3109/10731198909118277","url":null,"abstract":"","PeriodicalId":77498,"journal":{"name":"Biomaterials, artificial cells, and artificial organs","volume":"17 2","pages":"157-60"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10731198909118277","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13916146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Selected papers from the 6th University of California-at-Davis Biomedical Engineering Symposium. May 1986. 第六届加州大学戴维斯分校生物医学工程研讨会论文选集。1986年5月。
Biomaterials, artificial cells, and artificial organs Pub Date : 1989-01-01
{"title":"Selected papers from the 6th University of California-at-Davis Biomedical Engineering Symposium. May 1986.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77498,"journal":{"name":"Biomaterials, artificial cells, and artificial organs","volume":"17 1","pages":"27-116"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13914412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hepatocytes immobilised by microencapsulation in artificial cells: effects on hyperbilirubinemia in Gunn rats. 人工细胞微胶囊固定肝细胞:对Gunn大鼠高胆红素血症的影响。
Biomaterials, artificial cells, and artificial organs Pub Date : 1989-01-01 DOI: 10.3109/10731198909118855
S Bruni, T M Chang
{"title":"Hepatocytes immobilised by microencapsulation in artificial cells: effects on hyperbilirubinemia in Gunn rats.","authors":"S Bruni,&nbsp;T M Chang","doi":"10.3109/10731198909118855","DOIUrl":"https://doi.org/10.3109/10731198909118855","url":null,"abstract":"<p><p>The possibility of using hepatocytes encapsulated in a calcium-alginate-polylysine matrix to lower bilirubin levels in hyperbilirubinemia was investigated. The animal model was the Gunn rat. The microencapsulated hepatocytes were injected intraperitoneally. 15 X 10(6) microencapsulated hepatocytes from Wistar rats, lowered the bilirubin from 14 mg/100 ml to 6 mg/100 ml after 20 days. The bilirubin is still depressed after 90 days. After encapsulation, Sprague-Dawley hepatocytes were as effective as free hepatocytes in lowering bilirubin levels in Gunn rats. After 68 days, the free Sprague-Dawley hepatocytes were not rejected.</p>","PeriodicalId":77498,"journal":{"name":"Biomaterials, artificial cells, and artificial organs","volume":"17 4","pages":"403-11"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10731198909118855","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13748276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 87
Dynamic evaluation of clotting phenomena in vitro and perfluorochemical oxygen transport across a membrane-bound thrombus model. 体外凝血现象的动态评价和膜结合血栓模型的全氟化学氧运输。
Biomaterials, artificial cells, and artificial organs Pub Date : 1989-01-01 DOI: 10.3109/10731198909118283
P D Nguyen, E A O'Rear, B M Fung
{"title":"Dynamic evaluation of clotting phenomena in vitro and perfluorochemical oxygen transport across a membrane-bound thrombus model.","authors":"P D Nguyen,&nbsp;E A O'Rear,&nbsp;B M Fung","doi":"10.3109/10731198909118283","DOIUrl":"https://doi.org/10.3109/10731198909118283","url":null,"abstract":"<p><p>Citrated platelet-rich plasma was used to occlude 3-microns and 10-microns poresize Nuclepore membranes after recalcification as a thrombus model. Morphologic studies, using both light microscopy and scanning electron microscopy, indicated that over 90 percent of the number of pores available for filtration in hydrophilic and hydrophobic membranes were occluded either partially or completely. Results of transient and steady state pressure drop measurements supported the morphologic studies. It was found that the percentage of oxygen transported across the occluded membranes was greater for filtration of red blood cell suspensions diluted with a perfluorochemical emulsion than that of those diluted with Ringers. The findings in this study suggested that perfluorochemical emulsions might transport oxygen across a thrombus to maintain tissue viability during acute ischemic events.</p>","PeriodicalId":77498,"journal":{"name":"Biomaterials, artificial cells, and artificial organs","volume":"17 3","pages":"245-62"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10731198909118283","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13957968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The tearing strength of glutaraldehyde fixed bovine pericardium. 戊二醛固定牛心包的撕裂强度。
Biomaterials, artificial cells, and artificial organs Pub Date : 1989-01-01 DOI: 10.3109/10731198909118287
E A Trowbridge, C E Crofts
{"title":"The tearing strength of glutaraldehyde fixed bovine pericardium.","authors":"E A Trowbridge,&nbsp;C E Crofts","doi":"10.3109/10731198909118287","DOIUrl":"https://doi.org/10.3109/10731198909118287","url":null,"abstract":"<p><p>Destructive uniaxial load tests were performed on bovine pericardium that had been chemically modified by glutaraldehyde fixation. To investigate the tearing strength of this tissue, an artificial tear, in the form of a 2mm notch, was introduced into the test specimens. Specimens without a notch, harvested from the same sites in the pericardial sac but from different sacs, were used as controls. A video system with zoom and lens magnification facilities combined with low power oblique illumination was used to observe the events leading to tissue failure. Analysis of variance demonstrated that there was no overall significant difference in tensile strength or percentage strain at fracture between the test specimens with a tear and the control specimens without a tear. Rupture of the tissue occurred following laminate debonding by shear and fibre slippage through the viscous ground matrix.</p>","PeriodicalId":77498,"journal":{"name":"Biomaterials, artificial cells, and artificial organs","volume":"17 3","pages":"315-28"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10731198909118287","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13957971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
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