ajuda

[Creation]

boas pessoal. tenho uma bomba de ar da hydor, daquelas com luz que se mete no fundo do aquario. o problema e que se partiu aquela peça que gira, parece que tem um elice. colei com super cola, será que se deixar de "molho" em agua durante uns tempos, ela perde a toxicidade? abraço

[William]

Não sei se perderá a toxicidade, a super cola 3 é um produto mesmo muito tóxico, não sei se arriscava....

Editado Fevereiro 9, 2009 por William

[Vitor Sousa]

boas. eu acho que ela nunca vai perder a toxixidade porque ao alojarem lá algas ou outra coisa que os peixes possam ir lá comer, pode matar porque eles podem injerir a cola. aconselhava - te a comprar uma bomba de ar nova sem ser dessas giras. por exemplo, compra uma peça de decoração gira e mete o tubo do ar por tras dessa peça e vez bolhas a sair por detras dela. na minha opinião eu fazia isso. espero ter ajudado.

 

abraços

[Creation]

ok é o melhor. obrigado pela ajuda

[Paulo Cabrita]

Segundo alguns estudos o Cyanoacrylato, super cola, não é tóxico.

 

Penso que já seja usado, em determinadas ocasiões(???), para suturara cortes, em vez do tradicional "cozer com linha" ou agrafos.

(Algum médico/cirurgião presente que possa confirmar isto?)

 

 

Dermatol Clin. 2005 Apr;23(2):193-8.

 

Cyanoacrylates for skin closure.

 

Eaglstein WH, Sullivan T.

 

Cyanoacrylates (CAs) were not widely adopted for medical use until recently because of lingering concerns regarding the initial tissue toxicities of the short-chain CAs. The medium-chain CAs, primarily butyl-cyanoacrylate, have been widely used in Europe and Canada for several decades and have gone a long way in dispelling any lingering concerns about tissue toxicity. The newer, longer chain CA, octyl-2-cyanoacrylate (2-OCA), now has been approved for multiple uses in the United States and has achieved widespread acceptance by the medical and lay communities. The current authors believe that this is probably only the beginning of the use of 2-OCA and other CAs in cutaneous medicine. This article discusses the use of CAs in their original cutaneous use as glues for the repair of lacerations and incisions and in their more recent use as dressings for the treatment of abrasions and wounds.

http://www.ncbi.nlm.nih.gov/entrez/query.f...&query_hl=1

 

J Surg Res. 2005 May 15;125(2):161-7.

 

Evaluation of an absorbable cyanoacrylate adhesive as a suture line sealant.

 

Ellman PI, Brett Reece T, Maxey TS, Tache-Leon C, Taylor JL, Spinosa DJ, Pineros-Fernandez AC, Rodeheaver GT, Kern JA.

 

BACKGROUND: Previous formulations of cyanoacrylate, though very effective, proved to have too high a tissue reactivity to be used internally. A novel cyanoacrylate compound with less tissue reactivity was recently developed. The objective of this study was to assess this novel cyanoacrylate compound for the use as vascular suture line sealant. MATERIALS AND METHODS: Twelve adult female sheep received a 6 mm PTFE interposition graft in each iliac artery, for a total of 24 grafts. Using oxidized cellulose (Surgicel) as a control, two formulations of a new cyanoacrylate compound (named "compound A" and "compound B") were assessed during this trial. Hemostatic efficiency was measured at the time of operation by the assessment of bleeding time and amount of blood loss. Long-term graft patency was assessed angiographically at 4, 6, and 18 months. Tissue reaction at 2 weeks, 1, 6, and 18 months was assessed grossly by vascular surgeons and microscopically by a blinded pathologist. RESULTS: Average time to hemostasis was 37.6, 50.6, and 219 s in group A, group B, and oxidized cellulose control groups, respectively (P<or=0.001 for both compounds versus control). There were no significant differences between groups with regards to graft patency. Histopathology analysis demonstrated mild to moderate tissue reaction at 2 weeks and 1 month in the cyanoacrylate groups compared with controls at 1 month (ANOVA P=0.004). Mild tissue reaction was seen at 6 months and 18 months, with no significant differences between groups (ANOVA P=0.08, 0.62, respectively). CONCLUSIONS: The novel cyanoacrylate compound examined in this study is a highly effective suture line sealant with only mild tissue reactivity and no significant effects on graft patency when studied over an 18 month period.

 

http://www.ncbi.nlm.nih.gov/entrez/query.f...&query_hl=1

 

 

Uma duvida.......

O pessoal da agua salgada, quando quer multiplicar os corais, o que é que usa para colar os novos fragmentos nos "suportes"?

 

 

 

Cumprimentos,

Paulo Cabrita

Editado Fevereiro 10, 2009 por Paulo Cabrita

[jpospr]

De facto tenho a ideia de que a super cola depois de seca nao é toxica

[Creation]

ja colei e testei. ficou como novo. agora a pergunta... será que não fará mal aos peixes?

[babykhan]

Boas

 

 

Em principio não.

Essa cola polimeriza em contacto com a água.

Sem humidade essa cola não 'cola'.

 

Mas se puderes testar, melhor.

 

 

 

Abraço