On-Line Zeta Potential Measurements
Wyatt Technology?s Möbius is the first and only light scattering instrument that makes reliable, reproducible, and non-destructive zeta potential measurements of macromolecules as small as 1 nm, under dilute solution conditions.
Wyatt Technology’s Möbius is the first and only light scattering instrument that makes reliable, reproducible, and non-destructive zeta potential measurements of macromolecules as small as 1 nm, under dilute solution conditions. The Möbius was designed with the goal of measuring the mobility and the hydrodynamic radius of precious biological samples without perturbing these fragile species.
But another advancement relates to the ability of the Möbius to automate zeta potential measurements by connecting the device to an HPLC pump and autosampler. Since the cell of the Möbius can be plumbed in line, and can withstand very high pressure, it is ideally suited to multiple, sequential measurements using conventional chromatography apparatus.
The Möbius instruments join Wyatt Technology’s unique light scattering systems which include the miniDAWN TREOS, as well as the Optilab rEX—the only refractive index detector available that can be built to operate at any wavelength selected by the customer.
Contact: Geofrey Wyatt
Tel: 805-681-9009
FAX: 805-681-0123
E-mail: info@wyatt.com
The Complexity of Oligonucleotide Separations
January 9th 2025Peter Pellegrinelli, Applications Specialist at Advanced Materials Technology (AMT) explains the complexity of oligonucleotide separations due to the unique chemical properties of these molecules. Issues such as varying length, sequence complexity, and hydrophilic-hydrophobic characteristics make efficient separations difficult. Separation scientists are addressing these challenges by modifying mobile phase compositions, using varying ion-pairing reagents, and exploring alternative separation modes like HILIC and ion-exchange chromatography. Due to these complexities, AMT has introduced the HALO® OLIGO column, which offers high-resolution, fast separations through its innovative Fused-Core® technology and high pH stability. Alongside explaining the new column, Peter looks to the future of these separations and what is next to come.
Metabolomics Analysis of Low Birth-Weight Infants Using UHPLC-MS/MS Following Lipid Emulsion
January 10th 2025A recent study aimed to directly compare the changes in serum metabolites among very low birth-rate (VLBW) infants following the administration of the soybean oil-based lipid emulsion and soybean oil, medium-chain triglycerides, olive oil, and fish oil (SMOF) lipid emulsion using untargeted metabolomics techniques.
Analyzing New Drug Modalities: An ISC 2024 Interview with Kelly Zhang
January 10th 2025At ISC 2024 in Liverpool, United Kingdom, LCGC International interviewed Kelly Zhang of Genentech about her work analyzing new drug modalities, such as mRNA, oligonucleotides, peptides, and cell and gene therapies.
