18:1 EPC (Cl Salt) is a cationic derivatives of phospholipids consisting entirely of biological metabolites linked with two 18-carbon fatty acid tails with single alkene groups in each tail. The lipid has low toxicity and is biodegradable. Reagent grade, for research use only.

16:0-18:1 EPC (Cl Salt) is a cationic derivatives of phospholipids consisting entirely of biological metabolites linked with one 16-carbon fatty acid tail and one 18-carbon fatty acid tail with a single alkene group. The lipid has low toxicity and is biodegradable. Reagent grade, for research use only.

16:0 DAP, 1,2-dipalmitoyl-3-dimethylammonium-propane, is a cationic lipid that can be used to formulate lipid nanoparticles (LNPs). 18:0 DAP also serves as a pH-sensitive transfection reagent. Reagent grade, for research use only.

DORI, N-(2-hydroxyethyl)-N,N-dimethyl-2,3-bis(oleoyloxy)propan-1-aminium bromide, is an ionizable cationic lipid with lower cytotoxicity and high transfection efficiency. Reagent grade, for research use only.

DOBAQ, N-(4-carboxybenzyl)-N,N-dimethyl-2,3-bis(oleoyloxy)propan-1-aminium, is a cationic lipids with a quaternary amine and unsaturated hydrocarbon chains. DOBAQ also serves as a pH-sensitive transfection reagent. Reagent grade, for research use only.

Arcturus lipid 2 analog (Lipid 2,2 (9,9) 4C CH3) is an analog of Arcturus lipid 2((Lipid 2,2 (8,8) 4C CH3)) with chain adjusted to C9 instead of C8.

1,2-Dioleoyl-3(R)-trimethylammoniumpropane (R-DOTAP) is a cationic lipid and the more immunologically active isomer of DOTAP.Lipoplexes containing R-DOTAP and encapsulating siRNA targeting the gene encoding aromatase, CYP19A1, decrease aromatase activity in MCF-7 breast cancer cells.1 Vaccination with a peptide epitope from human papillomavirus (HPV) 16 protein E7 in R-DOTAP-containing liposomes induces IFN-γ production by CD8+ T cells and tumor-infiltrating lymphocytes (TILs) and decreases tumor size in a murine cervical cancer model.2 Subcutaneous immunization with recombinant influenza B hemagglutinin using R-DOTAP as an adjuvant increases IL-2 and IFN-γ production in CD4+ T cells isolated from mouse draining lymph nodes and spleen.

4A3-Cit is an ionizable lipid used for the generation of lipid nanoparticles (LNPs). To investigate the role of unsaturated lipid tails in iLNPs, the nucleophilic amines were added to ester-based linkers, followed by Michael’s addition to the thiols to construct a library of 91 amino ionizable lipids. Such ionizable lipids were composed of an ionizable tertiary amine core, an ester-based degradable linker, and an alkylthiol tail periphery. Through in vitro and in vivo screening, the iLNPs with 4A3 core and citronellolbased (Cit) periphery can significantly increase endosome escape and delivery efficiency of mRNA, leading to 18-fold increase in protein expression compared with iLNPs without Cit periphery. Furthermore, the delivery efficiency of mRNA may be associated with the location/configuration of the unsaturated bond(s) in lipids. Although lipids with Cit periphery showed excellent membrane fusion ability to facilitate endosome escape, the fusion mechanism needs to be further clarified.

G0-C14 is a cationic lipid-like compound alkyl-modified polyamidoamine (PAMAM) dendrimer. G0-C14 involves in the preparation of a series of macrophage-targeted nanoparticles (NPs). NPs can be used for drug and vaccine delivery[1][2].

YK-009 is a novel ionizable lipid for mRNA delivery. Comparisons of YK009-LNP-mRNA and commercial MC3-LNP-mRNA showed that YK009-LNP-mRNA vaccines had good biodistribution patterns, favorable tissue clearance, and high delivery efficiency. Furthermore, our study proved that YK009-LNP-Omicron mRNA could trigger a robust immune response and immune protection against the SARS-CoV-2 Omicron variant.

Lipidoid S14 is a novel lipidoid for siRNA delivery.Lipidoid-polymer hybrid nanoparticle (FS14-NP) can efficiently deliver siRNA against IL-1β (siIL-1β) to macrophages and effectively suppress the pathogenesis of experimental arthritis induced by collagen antibody (CAIA mice). FS14-NP/siIL-1β achieved approximately 70% and 90% gene-silencing efficiency in the RAW 264.7 cell line and intraperitoneal macrophages, respectively. Intravenous administration of FS14-NP/siRNA led to rapid accumulation of siRNA in macrophages within the arthritic joints. Furthermore, FS14-NP/siIL-1β treatment lowered the expression of pro-inflammatory cytokines in arthritic joints and dramatically attenuated ankle swelling, bone erosion, and cartilage destruction.

Lipid 8 iLNPs were used to deliver CRISPR-Cas9 mRNA and sgRNA which targeted to the PLK1 gene. The safety and excellent intracerebral diffusion performance of lipid 8 iLNPs ensured that the survival of murine glioblastoma multiforme (GBM) mice was extended. The median survival was extended by approximately 50% and the overall survival was increased by 30%. The treatment of metastatic adenocarcinoma was executed by the EGFRtargeted lipid 8 iLNPs. These iLNPs possessed the ability of tumor targeting, which could increase the accumulation of CRISPR-Cas9 mRNA and sgRNA within the tumor cells. After a single intraperitoneal administration,
80% PLK1 gene was edited and the overall survival of mice with high-grade ovarian cancer malignant ascites was enhanced by
80% . These results demonstrate the clinical potential of CRISPR-Cas9 gene editing system can be delivered by iLNPs for treating tumors, and provide new ideas for tumor gene therapy.

AL-A12 is an ionizable cationic amino lipid that has been used in the formation of lipid nanoparticles (LNPs).1 LNPs containing AL-A12 and encapsulating minicircle DNA that encodes for GFP have been used to induce GFP expression in Huh7 cells.

D-Lin-MC4-DMA(MC4) is a cationic lipid that has been synthesized for Lipid nanoparticles (LNPs) to deliver the siRNA.

D-Lin-MC2-DMA(MC2) is a cationic lipid that has been synthesized for Lipid nanoparticles (LNPs) to deliver the siRNA.

DSG-PEG2000 is used for liposome preparation. DSG-PEG, MW 2,000 has become known for lipid nanoparticle (LNP) preparation for siRNA (small interfering RNA) delivery research. .

RM133-3 is an ionizable lipid for potent functional mRNA delivery in vivo. The LPN formulation RM133-3-21, is found to be roughly 4.5 times more potent than DLin-MC3-DMA.

1,2-Distearoyl-sn-glycero-3-phosphorylglycerol is used as a component of a loposomal delivery system that coordinates the release of irinotecan and floxuridine in vivo. It is also used to encapsulate anthracyclines and deliver them to tumors.DSPG has a high transition temperature and has therefore found much use in liposomal drug delivery systems.

Lipid 10 is a novel ionizable cationic lipid be used for delivery of therapeutic RNA to the Bone Marrow in Multiple Myeloma Using CD38-Targeted with Lipid 10-LNP.

BIOTIN-11-DCTP is a fluorescent dye for DNA labeling.

306-N16B is a lipidnanoparticle, and allows systemic codelivery of Cas9 mRNA and sgRNA. 306-N16B can transport mRNA to the pulmonaryendothelial cell. 306-N16B can be used for research of genome editing-based therapies. Based on the same lipid libraries with 306-O12B, the researchers also found that N-series ionizable lipids were able to selectively deliver mRNA to the lungs of mice. Compared with the liver-targeted O-series ionizable lipids which contained ester bond in lipid tail found in previous work, such as 306-O12B, the N-series ionizable lipids with the lipid tail containing amide bond prefer to deliver mRNA to the lung. As a N-series ionizable lipid, the chemical structure of the 306-N16B is shown in Figure 4a,b. The difference of organ targeting may be due to their adsorption of different protein coronas during blood circulation caused by their different structures mentioned earlier.It has shown that the second major protein of the protein corona adsorbed by liver-targeting 306-O12B iLNPs was apolipoprotein E (ApoE), while the three dominant proteins in the protein corona adsorbed by lung-targeting 306-N16B iLNPs were serum albumin, fibrinogen beta chain, and fibrinogen gamma chain. However, the 306-N16B iLNPs showed less organ selectivity when systematically codelivered Cas9 mRNA and sgRNA in vivo, which could simultaneously activate tdTomato expression in the liver and lung of Ai14 mice, whereas single mRNA delivery could almost exclusively deliver mRNA to the lungs. This surprising phenomenon requires further investigation. Both the change of iLNPs charge and the change of lipids functional group can influence the distribution of iLNPs in vivo due to the altering of protein corona composition. Therefore, it is possible to control the organ targeting of iLNPs by controlling the composition of the outer protein corona of iLNPs.