Search Results

1 - 10 of 30 items :

  • "adhesives" x
  • Life Sciences, other x
Clear All
Adhesive Distribution between Paper Components of Cigarettes

Abstract

The objective of this contribution is to characterise the distribution of adhesive between the plug wrap paper and the tipping paper on a finished cigarette. On the one hand, it is well known that this distribution influences various properties of the cigarette, but on the other hand, there are no methods available to completely determine this distribution. The area covered by adhesive, the amount of adhesive, and the thickness and position of the adhesive layer between the plug wrap and the tipping paper were chosen as essential quantities. Image analysis was used to evaluate the area covered by adhesive, and the amount of adhesive between the papers. The thickness and position of the adhesive layer were determined by processing pictures of paper cross-sections obtained with a time-of-flight secondary ion mass spectrometer (TOF-SIMS).

Open access
Advanced coating of interior of tanks for rising environmental safety - novel applications of polyurethanes

Advanced coating of interior of tanks for rising environmental safety - novel applications of polyurethanes

The aim of this study was to develop urethane elastomers of predefined properties to be used as elastic coating in the cargo tanks of tankers. A method for coating the liquid polyurethane system onto steel and steel-concrete elements, and a way to join polyurethane coating with the aforementioned elements, were elaborated. The technique of injection the reactive liquid polyurethane system onto cold steel elements was used. The method for utilization and recovery of urethane oligomerols from the waste polyurethane coating in chemical recycling by using low molecular weight glycols as glycolysis agents was proposed.

Open access
Why Biopolymer Packaging Materials are Better

:31:179–194. doi:10.1146/annurev.publhealth.012809.103714 [16] Poustka J., et al. Acrylonitrile in Food Contact Materials – Two Different Legislative Approaches : Comparison of Direct Determination with Indirect Evaluation Using Migration into Food Simulants. Chezh Journal of Food Sciences 2007:25(5):265–271. doi:10.17221/678-CJFS [17] Tokiwa Y., et al. Biodegradability of Plastics. International Journal of Molecular Sciences 2009:10(9):3722–3742. doi:10.3390/ijms10093722 [18] Almaadeed M. A., et al. Mechanical, sorption and adhesive properties of

Open access
Occurrence of the nan1 gene and adhesion of Pseudomonas aeruginosa isolates to human buccal epithelial cells

Abstract

This study shows an association between the frequency of the nan1 gene (encoding neuraminidase) among 62 clinical Pseudomonas aeruginosa isolates and adhesion of these bacteria to human buccal epithelial cells. The 52 strains in which the gene was present (83.9%) were characterized by a higher adhesiveness (the mean number of adhering bacteria was 23.51 per cell) than strains in which the gene was not detected (16.23 per cell) and the difference was significant (P = 0.009, Mann-Whitney U test). Thus we found that the nan1 gene may play a role in the binding of clinical P. aeruginosa strains to buccal cells.

Open access
Impact of the surgical implantation of acoustic transmitters on the condition and health of pikeperch (Sander lucioperca (L.))

Abstract

The aim of the study was to determine the impact the surgical implantation of acoustic transmitters (AT; implantation incisions were sutured with tissue adhesive) had on the condition and health of pikeperch, Sander lucioperca (L.), (initial body weight of approximately 600 g). After tagging, the fish were held for 42 days in recirculating aquaculture systems. During this period, no negative effects were observed stemming from the implantation of AT on fish growth, condition, survival, or foraging effectiveness. The procedure also did not have a negative impact on hematological indicators. Among the 13 biochemical blood plasma indicators analyzed, only glucose level in the fish tagged with AT was significantly lower than that in the control group (P≤0.05). The rate of wound healing and the condition of the implantation incisions raised no concerns. Three weeks following the AT implantation procedure the incisions were closed and no infection was noted. Short-term AT retention (42 days) was 83.3%, and the fish shed the tags in the first two weeks following implantation.

Open access
Impact of two telemetry transmitter implantation incision suturing methods on the physiological state and condition of perch (Perca fluviatilis)

Abstract

The aim of this work was to determine the impact on European perch, Perca fluviatilis L. (mean body weight – 78.33 g) of the intraperitoneal implantation of telemetry transmitters using different suturing methods. In the first experiment silk sutures were used (experiment I – group ST), while in the second tissue adhesive was used (experiment II – group GT). Following the procedure, the fish were kept for 42 days in a recirculating system. Differences in growth and condition parameters were only noted in the first week of the experiment. Specimens from group GT had lower values for DGR (daily growth rate) and SGR (specific growth rate), but a higher value for FCR (feed conversion ratio) values. For the hematological parameters, lower values of MCV (mean corpuscular volume) and PLT (blood platelets) were noted in group GT, while for the biochemical parameters, lowered ALP (alkaline phosphatase) activity and Mg (magnesium) concentrations were noted in group ST. In group ST, 33.3% of the specimens loss their tags, while in group GT 77.8% did so. Differences in incision healing were only noted in the second week, when specimens in group ST were observed to have fully closed incisions, while in group GT 50% of the incisions were open. Despite the high percentage of implantation incision healing in both groups, because of the high values of tag loss rate, neither method can be recommended for perch. It might be more effective to use tag with external antennae in this species. The method use for closing implantation incisions also must be improved to eliminate tag shedding.

Open access
Redescription and New Host Record of Diplostamenides Sciaenae (Monogenea, Microcotylidae) and Its Phylogenetic Status Using Molecular Markers

Morphology of a new fauna of Monogenoidea on Fishes from Trivandrum and Environs. Part IV. Microcotylidae Sensu Stricto and Its Repartition into Subsidiary Taxa. American Midland Naturalist, 85 (2), 366-398. Whittington, I. D., Cribb, B. W., Hamwood, T. E., Halliday, J. A. 2000. Host specifi city of monogenean (platyhelminth) parasites: a role for anterior adhesive areas? International Journal for Parasitology, 30, 305-320. Yamaguti, S. 1958. Studies on the helminth fauna of Japan. Part-53. Trematodes of fishes, XII. Publications of the Seto

Open access
Development of periphytic diatoms on different artificial substrates in the Eastern Adriatic Sea

status of benthic algae. Hydrobiologia 489, 161-169. KHATOON, H., YUSOFF, F., BANERJEE, S., SHARIFF, M., BUJANG, J. S. 2007: Formation of periphyton biofi lm and subsequent biofouling on different substrates in nutrient enriched brackish water shrimp ponds. Aquaculture 273, 470-477. KINLOCH, A. J. 1990: Adhesion and adhesive: science and technology. Chapman & Hall, London (UK). LANDOULSI, J., COOKSEY, K.E., DUPRES, V. 2011: Review - Interactions between diatoms and steinless steel: focus on biofouling and biocorrosion

Open access
The Use of Chicken Igy in a Double Antibody Sandwich Elisa for the Quantification of Melittin in Bee Venom and Bee Venom Melittin Content in Cosmetics

., Cho N. S., Park H. S., Park D. S., Baek Y. H. (2013) Clinical effectiveness of bee venom acupuncture and physiotherapy in the treatment of adhesive capsulitis: a randomized controlled trial. Journal of Shoulder and Elbow Surgery 22(8): 1053-1062. DOI: 10.1016/j. jse.2012.10.045 Larsson A., Karlssonparra A., Sjoquist J. (1991) Use of Chicken antibodies in enzyme immunoassays to avoid interference by rheumatoid factors. Clinical Chemistry 37(3): 411-414. Lee M. T., Sun T. L., Hung W. C., Huang H. W. (2013) Process of inducing pores in

Open access
Evaluation of long-term antibody response and cross-serotype reaction in ducks immunised with recombinant Riemerella anatipestifer outer membrane protein A and CpG ODN

–511. 10.1586/erv.10.174 21506647 Bode C. Zhao G. Steinhagen F. Kinjo T. Klinman D.M. CpG DNA as a vaccine adjuvant Expert Rev Vaccines 2011 10 499 511 2 Calderon-nieva D.: Improving the delivery and immunogenicity of an inhalable CpG-ODN DNA vaccine by bio-adhesive gemini nanoparticles in neonatal chickens. UWSpace 2018. http://hdl.handle.net/10012/12812 Calderon-nieva D. Improving the delivery and immunogenicity of an inhalable CpG-ODN DNA vaccine by bio-adhesive gemini nanoparticles in neonatal chickens UWSpace 2018 http

Open access