Service no. | Service scope | Service description | Reference fee | Turnaround |
1 | Immunomagnetic bead sorting | Capture EVs expressing specific membrane proteins with antibody-coated magnetic beads, then sort and recover them using a magnetic rack. | 400 CNY/sample | 3 business days |
2 | Magnetic bead sorting (streptavidin beads) | Use bead-form polyacrylamide resin bearing immobilised recombinant streptavidin for biotin affinity purification, sorting and recovery of EVs expressing specific membrane proteins. | 400CNY/sample | 3 business days |
3 | Small-scale lyophilisation | Small lyophiliser capacity is approximately 200 mL per run, up to 100 vials at 2 mL each. | 500 CNY/batch | 5 business days |
4 | Large-scale lyophilisation | Large lyophiliser capacity is approximately 40 L per run, up to 20,000 vials at 2 mL each. | 10000CNY/batch | 15 business days |
5 | Sodium-alginate gel preparation | Prepared using sodium alginate hydrogel containing highly absorbent groups; after absorbing moisture, it forms a hydrogel that encapsulates EVs. | 2000 CNY/batch | 15 business days |
6 | Microneedle patch preparation | Combine lyophilised EVs with soluble materials such as hyaluronic acid to prepare dissolvable microneedles for subcutaneous delivery. | 10000CNY/batch | 15 business days |
EV magnetic bead sorting uses magnetic materials that bind EV surface molecules to isolate and purify vesicles. The service can include EV extraction, bead selection and modification, binding, purification and testing. The source describes freeze-drying as removing water from frozen EV samples for longer-term preservation and stability.
Lifeint provides EV research and application services from sample preparation, isolation and characterization to omics, functional studies, modification and scale-up. It jointly established a biomedical technology centre with Xiamen University School of Pharmaceutical Sciences, built process-development laboratories to GMP standards, and contributed to an EV expert consensus. Its service records cover more than 300 plant species.
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