Relevant bibliographies by topics / Irgasan

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Irgasan'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Irgasan"

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Kingston, D., D. V. Seal, and I. D. Hill. "Self-disinfecting plastics for intravenous catheters and prosthetic inserts." Journal of Hygiene 96, no. 2 (1986): 185–98. http://dx.doi.org/10.1017/s0022172400065955.

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SUMMARYA disinfectant (2,4,4′-trichloro-2′-hydroxydiphenyl ether: Irgasan, Ciba-Geigy) was incorporated into plastic washers fabricated from ethylvinyl acetate (EVA), polyethylene, polypropylene or TPX. Plastics containing 0·2 and 2% Irgasan gave zones of inhibition on nutrient and blood agar plates seeded with micro-organisms (Staphylococcus aureus, Staph, epidermidis Escherichia coli, Proteus mirabilisorCandida albicans) even after thorough washing. Exceptionally,C. albicanswas inhibited only by 2% Irgasan, and EVA gave good inhibition only against the staphylococci. Similar washers of each plastic were implanted subcutaneously into the flanks of rabbits; before insertion each was washed, had thread woven into it and was surrounded by a plasma clot containing 2 × 108Staph. aureus. All the plastics without Irgasan gave rise to abscesses, none of the plastics impregnated with 2% Irgasan did, though from 2 out of 12 sites small numbers ofStaph. aureuswere isolated atpost mortem. Using either clinical or bacteriological criteria, the results were highly significant (P< 0.00001 andP<0.001 respectively), demonstrating the effectiveness of this technique in preventing plastic-associated infection.
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León, Gonzalo R., María Belén Aldás, Víctor H. Guerrero, Andrea C. Landázuri, and Cristina E. Almeida-Naranjo. "Caffeine and irgasan removal from water using bamboo, laurel and moringa residues impregnated with commercial TiO2 nanoparticles." MRS Advances 4, no. 64 (2019): 3553–67. http://dx.doi.org/10.1557/adv.2020.33.

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ABSTRACTThe adsorption/degradation of caffeine and irgasan from aqueous artificial solutions by using.Lignocellulosic residues (LR) impregnated with TiO2 nanoparticles was studied. Three different LR were used: bamboo (Guadua angustifolia), laurel (Cordia allidora) and moringa (Moringa oleifera Lam.), each one with three nominal particle size ranges: 75–149, 45–75, and ≤45 μm. Commercially available TiO2 nanoparticles were added to these residues using the wet impregnation technique. The chemical composition of the LR was determined according to ASTM standards. FTIR spectroscopy and scanning electron microscopy were used to determine the functional groups and morphology of the modified materials, respectively. Adsorption/degradation tests were carried out in batch systems as a function of adsorbent concentration, contact time, nanoparticle content on the impregnated residues and light type influence. The maximum adsorption capacity was (37.1 mg. g-1/55.3 mg.g-1), using 40 wt.% nanoparticle-impregnated ≤45 μm laurel residues during 180 minutes, for a (7.0/0.7 g.L-1) concentration of (caffeine/irgasan). The caffeine adsorption isotherms were well described by the Langmuir and Freundlich models, while the Freundlich model describes irgasan adsorption. The use of UV radiation accelerated threefold the removal process.
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Steinkjer, Bjarte, and Lasse R. Braathen. "Contact dermatitis from triclosan (Irgasan DP 300)." Contact Dermatitis 18, no. 4 (1988): 243–44. http://dx.doi.org/10.1111/j.1600-0536.1988.tb02815.x.

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KOTULA, A. W., and A. K. SHARAR. "Presence of Yersinia enterocolitica Serotype O:5,27 in Slaughter Pigs." Journal of Food Protection 56, no. 3 (1993): 215–18. http://dx.doi.org/10.4315/0362-028x-56.3.215.

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The tonsils, tongue, mesenteric lymph nodes, cecal contents, and feces from 50 slaughter pigs were evaluated for the presence of pathogenic Yersinia enterocolitica. The cecal contents and feces of two pigs were positive (4%) with the pathogenic serotype O:5,27, biotype 3, whereas all other pigs were negative for pathogenic serotypes of Y. enterocolitica. The pathogenic serotypes were isolated from the cecal contents and feces using the stomacher sampling method. The cold enrichment in phosphate buffered saline and plating in Cefsulodin-irgasan-novobiocin medium. No pathogenic serotypes were recovered using the swab sampling technique, enrichment in Irgasan-ticarcillin-chlorate, and plating in modified Salmonella-Shigella deoxycholate-calcium chloride medium. The isolation of only 4% positive pathogenic Y. enterocolitica in our sampling of pigs in one production unit provides some encouragement that detection and control procedures might be effectively implemented to reduce or eliminate serotype O:5,27 from that herd.
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Beck, H., A. Droβ, K. Eckart, W. Mathar, and R. Wittkowski. "Determination of PCDDs and PCDFs in Irgasan DP 300." Chemosphere 19, no. 1-6 (1989): 167–70. http://dx.doi.org/10.1016/0045-6535(89)90306-8.

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RUSSELL, SCOTT M. "A Rapid Microbiological Method for Enumeration of Pseudomonas fluorescens from Broiler Chicken Carcasses." Journal of Food Protection 60, no. 4 (1997): 385–90. http://dx.doi.org/10.4315/0362-028x-60.4.385.

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A method to selectively enumerate Pseudomonas fluorescens from fresh chicken carcasses in less than 24 h using capacitance microbiology was developed. Capacitance assays were conducted on whole-carcass rinses at 25°C using brain heart infusion broth (BHI) containing 25 μg of Irgasan per ml to obtain a detection time. The capacitance samples were spread plated on plate count agar for isolation and identification. From plates with the highest dilution, from each carcass, 4 colonies were randomly selected and identified. Seven species of bacteria including Pseudomonas fluorescens were responsible for capacitance detection times. Various antibiotics and chemicals were added to basal media or brain heart infusion broth with Irgasan and were evaluated to select for the growth of P. fluorescens. BHI broth containing 4 μg of nitrofurantoin, 120 μg of carbenicillin, and 25 μg of Irgasan, all per ml, was found to be optimal and was termed Pseudomonas fluorescens selective additive (PSA) (patent pending). In a second study, 12 carcasses were collected in each of three replicate trials. For each trial, 2 carcasses were sampled immediately and 2 were sampled after storage at 3°C on days 3, 6, 9, 12, and 15. The BHI-PSA broth was found to be excellent for enumeration of P. fluorescens from broiler chicken carcass rinses in assays using capacitance microbiology at 25°C. The time required to enumerate P. fluorescens for all samples (day 0 to 15) was <22.4 h. This method is rapid and would be a useful tool for determining the number of spoilage bacteria on fresh chicken and thus may possibly be used to predict the potential shelf life of fresh chicken and other foods of animal origin.
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STILES, M. E., and A. Z. SHEENA. "Efficacy of Germicidal Hand Wash Agents in Use in a Meat Processing Plant." Journal of Food Protection 50, no. 4 (1987): 289–95. http://dx.doi.org/10.4315/0362-028x-50.4.289.

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The in-use efficacy of a selected range of germicidal hand wash agents was tested in a meat processing plant. The hand washes included non-germicidal soaps and germicidal agents containing chlorhexidine, iodophor and Irgasan DP 300 as active ingredients. A laboratory study was done under controlled conditions with standardized procedures for hand washing; in the meat plant, “normal” (unstandardized) hand wash procedures were followed. Levels of contamination on hands varied markedly between work units. Only in the meat cutting area could a significant difference be attributed to hand wash agents against transient-type bacteria on workers' hands. The hand wash agent with 4% chlorhexidine gluconate, the iodophor with 0.75% available iodine and the gel containing 0.3% Irgasan DP 300 were the only products that gave a significantly better reduction of transient bacteria than non-germicidal soap. Transient bacteria were detected on hands after washing, indicating that under the in-use conditions in the meat processing plant, hand wash techniques did not remove all of these bacteria from hands. The plant workers generally indicated a dislike for the iodophor products as hand germicides.
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Dayan, A. D. "Risk assessment of triclosan [Irgasan®] in human breast milk." Food and Chemical Toxicology 45, no. 1 (2007): 125–29. http://dx.doi.org/10.1016/j.fct.2006.08.009.

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BHADURI, SAUMYA, and IRENE WESLEY. "Isolation and Characterization of Yersinia enterocolitica from Swine Feces Recovered during the National Animal Health Monitoring System Swine 2000 Study†." Journal of Food Protection 69, no. 9 (2006): 2107–12. http://dx.doi.org/10.4315/0362-028x-69.9.2107.

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A national study was conducted for the isolation of pathogenic Yersinia enterocolitica in pig feces in the United States as part of the National Animal Health Monitoring System's Swine 2000 study. Fecal samples collected from swine operations from September 2000 to March 2001 from 77 production sites in 15 of the top 17 swine-producing states were tested for the presence of pathogenic Y. enterocolitica. After enrichment of swine fecal samples in irgasan–ticarcillin–potassium chlorate broth, the enriched cultures were plated on cefsulodin-irgasan-novobiocin agar for isolation of presumptive Y. enterocolitica. The isolates were confirmed as pathogenic Y. enterocolitica by the fluorogenic 5′ nuclease PCR assay targeting the chromosomal attachment invasion ail gene. Of 2,793 fecal samples tested, 106 (3.80%) ail-positive strains of Y. enterocolitica were isolated. These 106 ail-positive isolates originated from 7 of the 15 participating states. The predominant serotype O:3 (n = 79 of 106) was distributed in five states (n = 5 of 7). Serotype O:5 (n = 27 of 106) was also found in five states (n = 5 of 7). All isolates contained the virulence plasmid and expressed virulence-associated phenotypic characteristics. These results indicate that swine in the United Stares harbor Y. enterocolitica that can potentially cause human illness.
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Burgard, Niklas, Melanie Kienitz, Claudia Jourdan, and Stefan Rüttermann. "The Influence of Modified Experimental Dental Resin Composites on the Initial In Situ Biofilm—A Triple-Blinded, Randomized, Controlled Split-Mouth Trial." Polymers 13, no. 16 (2021): 2814. http://dx.doi.org/10.3390/polym13162814.

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The purpose of the study was to investigate the bacterial viability of the initial biofilm on the surface of experimental modified dental resin composites. Twenty-five healthy individuals with good oral hygiene were included in this study. In a split-mouth design, they received acrylic splints with five experimental composite resin specimens. Four of them were modified with either a novel polymeric hollow-bead delivery system or methacrylated polymerizable Irgasan (Antibacterial B), while one specimen served as an unmodified control (ST). A delivery system based on Poly-Pore® was loaded with one of the active agents: Tego® Protect 5000 (Antiadhesive A), Dimethicone (Antiadhesive B), or Irgasan (Antibacterial A). All study subjects refrained from toothbrushing during the study period. Specimens were detached from the splints after 8 h and given a live/dead staining before fluorescence microscopy. A Friedman test and a post hoc Nemenyi test were applied with a significance level at p < 0.05. In summary, all materials but Antibacterial B showed a significant antibacterial effect compared to ST. The results suggested the role of the materials’ chemistry in the dominance of cell adhesion. In conclusion, dental resin composites with Poly-Pore-loaded active agents showed antibacterial effectiveness in situ.
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Dissertations / Theses on the topic "Irgasan"

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Slavíková, Amemori Anna. "Aplikace ligninolytických hub na pevných substrátech pro degradace endokrinních disruptorů." Master's thesis, 2012. http://www.nusl.cz/ntk/nusl-305417.

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Today a lot of attention is focused on compounds called endocrine disrupters (EDs) among substances released to environment by humans. They are a group of substances which can disturb function of hormonal system of organisms including humans. Their poor removal at wastewater treatment plants (WwTP) were shown at various studies, thus they can reach the environment in water. A prospective way for the degradation of EDs at WwTP can be their removal by ligninolytic fungi. They are able to degrade lots of lignin-like aromatic substances because of their highly nonspecific enzymes. In this work growth and enzyme production capability of four ligninolytic fungal strains were monitored on three solid substrates (straw pellets, poplar sawdust mixed with straw pellets, oak sawdust with straw pellets), which may be suitable substrates for fungal growth in bioreactors for wastewater treatment. Ability of these enzymes to degrade EDs were tested in in-vitro degradation experiment. Trametes versicolor was found as best degrading strain with 20 μg/ml of bisphenol A, 17 α- ethynylestradiol and nonylphenol degraded below a quantification limit within 24 hours. Fungal strains degraded EDs well on all of the three substrates but wood sawdust seemed to be a better substrate for fungal growth because straw pellets...
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Medková, Jaroslava. "Optimalizace stanovení endokrinních disruptorů v čistírenských kalech a aplikace metody v reálných vzorcích." Master's thesis, 2012. http://www.nusl.cz/ntk/nusl-307047.

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Hormonaly active compounds in wastewaters represent nowdays a serious problem. Proceses currently used in watewater treatment plants (WWTP) are unefficient in removing these compounds from contaminated wastewaters. The compounds are supposed to sorb onto solid sludge elements and sediments. In this work seven endocrine disruptors were detected in the sludge samples from WWTPs. A new sensitive method for detection of seven selected endocrine disruptors (4-nonylphenol, bisphenol A, estriol, 17β-estradiol, estrone, 17α- ethynylestradiol, irgasan) was developed. The method is based on accelerated solvent extraction (ASE), gel permeation chromatography (GPC) and solid phased extraction. For final extract analysis, gas chromatography coupled with mass spectrometry (GC/MS) was used. The efficiency of this method was tested using artificially contaminated sludge and the method was used to analyse real samples from several WWTPs in Czech Republic. The effect of sludge age on detection of individual analytes was assessed as well. The concentrations of endocrine disruptors measured in the samples reached up to 1 µg/g. The results are comparable or higher then those reported in other works and they show the necessity of further research on endocrine disruptors in the environment.
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Rens, Heather Merle. "Ethical issues concerning the implementation of an opt out approach for human irgan donation in South Africa." Thesis, 2009. http://hdl.handle.net/10539/6945.

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Books on the topic "Irgasan"

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Vasseleu, Cathryn. ill-Textures of Light: Vision and touch in irgaray, levinas, and merleau-ponty. 2004.

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Book chapters on the topic "Irgasan"

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Seal, David V., and Stephen P. Barrett. "The Development of Irgasan-Impregnated Intravenous Cannulae." In Pathogenesis of Wound and Biomaterial-Associated Infections. Springer London, 1990. http://dx.doi.org/10.1007/978-1-4471-3454-1_60.

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"Cefsulodin irgasan novobiocin (CIN) agar." In Handbook of Culture Media for Food Microbiology. Elsevier, 2003. http://dx.doi.org/10.1016/s0079-6352(03)80039-5.

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"Irgasan ticarcillin chlorate (ITC) broth." In Handbook of Culture Media for Food Microbiology. Elsevier, 2003. http://dx.doi.org/10.1016/s0079-6352(03)80057-7.

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"Irgasan Ticarcillin Chlorate (ITC) broth." In Culture Media for Food Microbiology. Elsevier, 1995. http://dx.doi.org/10.1016/s0079-6352(05)80044-x.

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"Cefsulodin Irgasan Novobiocin (CIN) agar." In Culture Media for Food Microbiology. Elsevier, 1995. http://dx.doi.org/10.1016/s0079-6352(05)80027-x.

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"Bile salts Irgasan brilliant green (BSIBG) agar." In Handbook of Culture Media for Food Microbiology. Elsevier, 2003. http://dx.doi.org/10.1016/s0079-6352(03)80033-4.

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Conference papers on the topic "Irgasan"

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Wang, Jun, Lantao Yu, Weinan Zhang, et al. "IRGAN." In SIGIR '17: The 40th International ACM SIGIR conference on research and development in Information Retrieval. ACM, 2017. http://dx.doi.org/10.1145/3077136.3080786.

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Jain, Moksh, and S. Sowmya Kamath. "Improving Convergence in IRGAN with PPO." In CoDS COMAD 2020: 7th ACM IKDD CoDS and 25th COMAD. ACM, 2020. http://dx.doi.org/10.1145/3371158.3371209.

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Journal articles
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