Monthly Archives: December 2018

 This is a follow up to our newsletter article, “New Adapter for testing 25mm Membrane Discs in the HP4750” that went out in November without going through the necessary steps of internal and external reviews and care for content.  We want to make sure we take the necessary steps to make this right by publishing this follow up.

While Sterlitech has observed a growing need in the research community for a high pressure stirred cell to test 25 mm membrane discs, the development of the first prototype of this product was done by our customers/researchers, Christopher M. Stafford, PhD. and Chris Amigo, Machinist, at the National Institute of Standards and Technology. Christopher and his team shared their design with Sterlitech, so we can make this product available to the other researchers in the field, so a wider audience in the research community can take advantage of their design, and we can all push the boundaries of research and science collectively.

We apologize for the confusion,

The Innovator Cross Flow Filtration Kit is a plug and play system designed for conducting lab scale filtration experiments. With a total hold-up volume <1 liter in the test cell and circulation line, this bench-scale cross flow filtration system is also ideal for filtering valuable feed solutions and or small sample volumes. 

This assembly enables microfiltration, ultrafiltration, and nanofiltration separations using Sterlitech’s Innovator (CF016) or Explorer (CF042) membrane test cells. Our flat sheet membranes are available in pre-cut coupons to fit these cells. The system comes complete with a gear pump, feed carboy, stand-mounted membrane test cell, and all the necessary tubing, pressure control valve, flow and pressure sensors.

Features:

• Pressure control valve to adjust the pressure in the system
• Variable speed knob on pump to adjust feed flow rate
• Cell stand for easier access to membrane and tubing
• Stainless steel or inert thermoplastic construction of wetted parts
• Optional conductivity,

Liposomes are vesicles consisting of an aqueous core inside a hydrophobic membrane bilayer that can be used as a carrier system. They present a promising tool for the delivery of pharmaceutical agents and compounds that typically are unable to diffuse across membrane barriers. Production of liposomes allows for the incorporation of both hydrophobic and hydrophilic compounds into their structure for targeted delivery, enabling use in diagnostics, gene therapy, vaccines, cosmetics, and cancer treatment. In fact, multiple liposomal formulations of cancer therapies have already been introduced on the market.¹ Potential applications extend well past drug delivery – from food production and nutritional supplements to environmental remediation.^2,3

Liposomes can be prepared using extrusion, wherein a lipid suspension is forced through a microporous membrane filter over multiple passes. The membrane pore size and operating conditions determine the liposome sizes created in this process. Track-etched