| Product Name | PolyExpress™ Transfection Reagent | 
    
      | Catalog Number | EG-1072 | 
    
      | Size | 1 mL | 
    
      | Description | PolyExpress™ Transfection Reagent, a biodegradable cationic polymer-based formulation, delivers DNA with high transfection efficiency and minimal cytotoxicity to a wide range of mammalian cell lines, including HEK293, COS-7, NIH 3T3, HeLa, CHO, and hard-to-transfect cells, forming stable polyplexes rapidly at room temperature. | 
    
      | Advantages | 
          Biodegradable, reducing cytotoxicity post-endocytosisSupports high-titer viral productionEffective for large DNA constructs (>89 kb)Efficient for single and multi-DNA co-transfectionsEnables high levels of recombinant protein productionSimple and robust transfection protocolCost-effective | 
    
      | Transfection Efficiency | 
          
            
 Figure 1. Comparison of transfection efficiency between PolyExpress™ and Lipofectamine 2000 in HEK293 cells.
            
 Figure 2. Transfection of glioma xenograft cell lines (5310, 4910) using GeneExpresso™ and PolyExpress™ (courtesy of Dr. Chandram Chetty, University of Illinois).
            
 Figure 3. Comparison of transfection efficiency of PolyExpress™ (#1, #2, #3) with other transfection reagents (#4–#8) in HEK293 cells using 3 µL reagent and 1 µg DNA in a 12-well plate. | 
    
      | Protocol | DNA Transfection Protocol | 
    
      | Quality Control | 
          Functionally validated for high transfection efficiency in HEK293 and CHO cellsConfirmed low cytotoxicity in standard cell culture conditions | 
    
      | Storage | Store at 4°C; stable for 12 months or longer if stored properly | 
    
      | Shipping | Ambient temperature |