Adhesive microfiltration discs in polypropylene laminated PTFE with Patented Technology
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Order AMD's from TQPL by Phone, fax, e-mail or by PayPal online
Overseas customers please enquire about shipping costs and payment methods. Payments by cheque in sterling (UK£) or electronic transfer to our banks. Sorry no credit cards accepted other than through PayPal.
How to contact TQPL
TQPL / Brookside / Southern Lane / New Milton / Hampshire / BH257JE / United Kingdom
Tel/Fax/Ans: 01425 616 608 / Int. +44 1425 616 608 / e-mail to: tq@tissuequickplantlabs.com
Why microporous PTFE?
Microporous PTFE is made from uniform PTFE granules which are processed to form a membrane with pores of a controllable size. The scanning electron microscope reveals a structure in appearances similar to a synthetic sponge. There are no large holes for contamination to enter. This is a critically important difference from conventional PTFE membranes. Other PTFE discs rely on stretching the membrane during manufacture during which large and small holes are formed and as a result contamination entrapment for in-vitro use relies primarily on enmeshment. These membranes are often thinner and more fragile.This process holds a worldwide patent on manufacture and also a worldwide patent on surface treatment of PTFE to improve filtering efficiency and filtering. This is one of the reason why these PTFE discs are better than other products and probably the best in the world!
Strength and superiority
By using a polypropylene support mesh these filters are uniquely laminated and during flex testing proved to be superior to fibrillated products in resistance to de-lamination.
We have found that some simple filters without polypropylene are inferior and suffer from edge rolling and are liable to tear in day to day use putting aseptic integrity at risk. Our discs enable safe international air shipping of in-vitro cultures without contamination or loss. Importantly they are robust enough to make the transition from laboratory to greenhouse handling when the need arises.
Paphiopedilum seedling growing aseptically vented by AMD's. Although these orchids will grow unvented - experience has shown that when an air exchange is available the growth rate is faster. Problems with ethylene and other gas build up can be eliminated and plants maintained for many months contamination free.
| It has been widely reported in plant tissue culture work that increased air flow through the use of venting culture vessels improves the growth rate of plants and enables plants to be more easily prepared for transfer out of culture. Depletion of Carbon Dioxide levels can be overcome, while ethylene and other detrimental gasses are able to diffuse out. Problems of vitrification or 'glassiness' can sometimes be reduced or eliminated in some susceptible plants by better gas exchange. AMD's can be used to reduce the humidity in the culture vessel. |
| Adhesive Microfiltration Discs (0.65p each) | @ £65.00 / 100 AMD pack |
| Shipping UK and Worldwide free for less than x1000 AMD | Free |
| Payment to be made out to TQPL by UK cheque. | Cheque £65.00 |
| Electronic bank transfer (Iban/Swift) Transfer fee of +£7.00. |
Iban/Swift Transfer £72.00 |
| Credit cards by secure PayPal site. You do not need a PayPal account to make a payment. Just follow onsite instructions for single or multiple packs. Free to customers . |
Fully detailed technical information sheets are supplied with each order and we are only too willing to offer help or advise as required, based on many years of commercial work with PTFE filtration products in the contract production of plants. These are also available with our robust autoclavable high quality polypropylene containers as PCCV25 (PCC+AMD)
We were the original and first in the UK (and probably worldwide) to introduce multilayered PTFE adhesive microfiltration discs in early 1995 to improve the quality of orchid plants for the commercial industry. Now we are pleased to offer this new microporous PTFE laminated AMD at a smaller diameter produced in direct collaboration with the manufacturer to achieve the correct venting characteristic for plant culture.
We only sell products we use in our own plant production.
Convert a range of vessels to culture containers by simply drilling a hole and applying an Adhesive Microfiltration Disc.
Improve and safeguard culture from moisture ingress and contamination when using Kimax (USA) flasks and lids
Long-term cultures can be maintained free from contamination.
Not to be confused with inferior products.
The PTFE manufacturing and treatment holds Worldwide Patents.
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For additional infomation see Modern Venting Systems link click here
Or for PTFE FAQ information resource click here