DharmaFECT Duo Transfection Reagent

For high-confidence co-transfection

DharmaFECT Duo Transfection Reagent
Optimized for co-transfection, DharmaFECT Duo transfection reagent provides highly effective delivery of siRNA, microRNA or crRNA reagents with plasmid. Useful for experiments utilizing reporter genes, RNAi rescue, or Edit-R Cas9 plasmid.

In side-by-side cotransfection experiments with traditional reagents developed for plasmid delivery, only DharmaFECT Duo Transfection Reagent resulted in efficient cell delivery of both siRNA (assayed by target gene knockdown) or microRNA reagents, along with plasmid (assayed by level of reporter expression).

DharmaFECT Duo is an excellent choice for experiments requiring cotransfection, such as Edit-R Gene Engineering, RNAi rescue or utilization of reporter systems.


  • Effective delivery of two distinct molecules, DNA plasmid and small RNA, from a single formulation
  • Efficient transfection without compromising cell viability
  • Potent RNAi results together with plasmid expression
  • Recommended for use with Edit-R Gene Engineering Cas9 plasmid and synthetic components
For transfection of plasmid DNA or shRNA, please select TurboFect Transfection Reagent. For transfection of siRNA or microRNA only, please select DharmaFECT 1 Transfection Reagent.
Shelf Life24 Months
Shipping ConditionRefrigerated Gel Packs
Storage Condition4 C
Highly effective cotransfection

DharmaFECT Duo is highly effective in co-transfection of plasmid with siRNA or microRNA

Highly effective cotransfection

DharmaFECT Duo transfection reagent achieves reliable cotransfection results for a variety of experimental goals. The graph demonstrates specific modulation of Renilla luciferase (Rluc) gene:

Rluc expression is similar for Plasmid Alone and Plasmid+Control

Down-regulation of the Rluc as a result of miRNA mimic (plasmid + miRNA mimic)

Excellent knockdown of the Rluc by siRNA (Plasmid + siRNA)

The psiCHECK-2 vector (100 ng/well; Promega) with cloned microRNA recognition sites for miR-28, miR-95, miR-30d, and miR-105, respectively, were complexed alone or with RNAi reagents (10 nM) using DharmaFECT Duo (0.2 μL/well) in MCF-7 cells at 10,000 cells/well (96-well plate). The RNAi reagents were Dharmacon miRIDIAN Mimics (Negative Control, miR-28, miR-95, miR-30d, and miR-105, respectively) or siRNA (Renilla luciferase pool). Firefly and Renilla luciferase expression was assessed at 48 hours using the Dual-Glo Luciferase Assay System (Promega) and normalized to identically treated psiCHECK-2 empty vector.