The advent of instant adhesive dates back to 1949, when Goodrich Co. of the US discovered alpha-cyanoacrylate synthesis method. Since 1959, when the world’s first instant adhesive “Eastman 910” appeared in the market, practical applications are going on around the world and improvements on cyanoacrylate adhesive are under way night and day seeking for higher functionality. Instant adhesive means an adhesive which can stick adherends in seconds, as understood by the name.
Strong polymer−silica aerogel composites were prepared by chemical vapor deposition of cyanoacrylate monomers onto amine-modified aerogels. Amine-modified silica aerogels were prepared by copolymerizing small amounts of (aminopropyl)triethoxysilane with tetraethoxysilane. After silation of the aminated gels with hexamethyldisilazane, they were dried as aerogels using supercritical carbon dioxide processing.
A tissue bonding article includes a flexible material, an adhesive substance applied over at least a portion of a bottom side of the flexible material, and a polymerizable adhesive composition permeated throughout at least a portion of the flexible material.
Nanofibers of poly(ethyl 2-cyanoacrylate) were directly grown via a template-less vapor phase polymerization technique directly on surface modified glass substrates. Several commercially available glass slides were investigated for polymer nanofiber deposition. In addition, glass substrates were also modified in the laboratory using silanes with different functional groups. The growth of nanofibers at different relative humidities was studied using scanning electron microscopy (SEM) and atomic force microscopy (AFM).
A novel improved gypsum board having improved antifungal properties is disclosed. The board comprises a gypsum core, front and back paper facings and a polymeric antifungal agent effective at inhibiting fungal growth. A preferred polymeric antifungal agent is polyDADMAC or polyTMMC. In addition to the polymeric antifungal agent, a non-polymeric antifungal agent, such as cetyl pyridinium chloride, sodium or zinc pyrithione, or both, may be included. The polymeric antifungal agent can be present in the gypsum core and/or on one or both of the paper facings.
Among the wide variety of synthetic polymers with medical applications polymerising medical devices are those non-pharmaceutical medical aids which are based on monomers which can be polymerised after (or during) application to the body. The resultant polymers perform roles in wound management, repair, stabilisation and hemostasis. They can also support tissue re-growth, as well as being used for drug delivery. The synthetic systems most commonly used are based around acrylic ester chemistries, analogous to their non-medical uses as plastics and adhesives.
Despite the latest polymer materials and surgical suturing techniques, the knot will always be the weakest point of the tied suture loop. In theory, the knot must be as small as possible to prevent an excessive amount of tissue reaction and a delay in healing. There have been reports suggesting that topical cyanoacrylate adhesives could have a reinforcing effect on a surgeon’s knot. Such an outcome could lead to the elimination of knot slippage and the unsatisfactory performance of some surgical knots.
The aim of the study was to compare suture, clip and clip combined with topical N-butyl cyanoacrylate in an experimental model of gastric perforation. Sixty Wistar-Albino rats were divided into three groups. Midline laparotomy was performed and a 4 mm puncture was done on the anterior surface of the stomach. Closure was performed by sutures in the first group, clip in the second group, and clip with topical cyanoacrylate in the third group. Ten rats underwent a re-laparotomy on the 3rd and 7th days, respectively.
