• A nanoparticle (11-40nm) drug delivery system comprising a discoidal phospholipid bilayer • membrane stabilised by a chaperone molecular annulus.
• All components are batch tested for Lipodisq™ formation using validated buffer systems, which are assessed by Dynamic Light Scattering (DLS) to confirm nano-formulated drug characteristics. The buffer solutions themselves are endotoxin tested and supplied sterile.
• Lipodisq™ formation is highly efficient and shows a good safety profile, suitable for in vitro and in vivo (in experimental animals) investigations.
Enables membrane proteins (MP) to be reconstituted within phospholipid membrane mimics
without the use of mediating detergent. Nanodiscs formed from SMA are also referred to as styrene
maleic acid lipid particles (SMALP). SMA-lipid particles are formed by directly extracting membrane
proteins either from native cellular membranes (giving native nanodiscs) or from an intermediary
MP-reconstituted synthetic membrane system to ultimately form self-assembled discoidal nano-structures
of a general diameter of 10–12 nm.
• uSMA requires only a single polymer grade to be used, avoids the need to select several SMA
grades that each operate only over a narrow pH range
• uSMA can be tailored to operate over a wide pH range 4.5-8.5 by simple addition of standard
quantities of pH-Selector™
• uSMA is insensitive to presence of divalent cations, Ca2+(<10mM) and Mg2+ (<30mM),
suitable for use with ion pores, ABC transporters and ion sensitive GPCR assemblies
• uSMA can be modified to form larger particles, reducing direct interactions between the polymer
chaperone and membrane‑bound proteins
The ability of SMA to create monodisperse nanodiscs covering a range of particle sizes facilitates
the reconstitution of oligomeric MPs and MP complexes for analysis by various methods including
fluorescence microscopy, NMR and single-particle cryo-EM. Lipodisq™ technology is a proprietary
technology developed by Malvern Cosmeceutics Limited and is subject to granted international patents.
See: https://lipodisq.com.