If you need an isotonic solution one that matches the body's natural salt balance or you're working with a compound where preservative-free saline is specifically recommended, saline is the appropriate choice
Clinically validated LNPssuch as those used in SARS-CoV-2 mRNA vaccinesare composed of ionizable lipids, cholesterol, helper phospholipids, and polyethylene glycol (PEG)-lipid conjugates, which together facilitate endosomal escape, structural stability, and reduced immunogenicity

Epidemiology: High levels of vitamin B12 were found in: Causes: Excessive supplementation (a direct increase in plasma vitamin B12 by excess intake or administration) Increased release of vitamin B12 from tissue stores (liberation from an internal reservoir): Solid tumors (especially hepatic or hematologic malignancies) Liver metastases Increased binding proteins: 7 Excess production: Liver disease (e.g., hepatitis, cirrhosis, hepatocellular carcinoma) damaged hepatocytes release haptocorrin (transcobalamin I) and B12 into circulation Myeloproliferative disorders these increase granulocyte production, which leads to more haptocorrin (transcobalamin I/III), a B12-binding protein produced by proliferating myeloid cells
Remarkably, the most significant aspect is the substantial enhancement of immune responses triggered by electroporation, which can be as much as 100 times greater than that achieved with traditional injection methods (van Drunen Littel-van den Hurk and Hannaman, 2010)
Article Cited Franques Jrme, Chiche Laurent, Mathis Stphane