Common PDMS Materials
There are two commonly used types of PDMS: PDMS chips, including Matsumoto's PDMS RTV-615 and Dow Corning's Sylgard 184. The composition of these materials is currently a trade secret, known only to a few. Based on years of experience, here are some suggestions on how to choose the appropriate PDMS:
Maituo PDMS RTV-615:
1) Selection of materials for manufacturing micro-valves.
2) Durable, with strong key force, suitable for multi-layer bonding chips.
3) Resists dirt, prone to staining.
Dow Corning PDMS Sylgard 184
1) Relatively clean
2) Suitable for single-layer bonding; not suitable for multi-layer bonding
Advantages: Optical transparency, biocompatibility, inert, easy to process on the surface, suitable for mass manufacturing processes, high commercial viability, low cost, and quick to bond.
Drawbacks: Expensive equipment required for complex chip production with this polymer, difficulties encountered in the thermal bonding step: more channels collapse when the width-to-height ratio is too high.
Common Applications: Cell Culture Research;
Potential Applications: Cell culture on microfluidic chips (microchannel chips) using plasma treatment or masking layers, or pre-coating microchannels with extracellular matrix proteins before cell seeding to facilitate cell adhesion and growth, while also preventing bubble formation.
Molding Methods: Injection molding, heat stamping.
Adhesive Method: Heat bonding, with plasma treatment to enhance bonding strength.
Glass transition temperature: 92-107°C.
PDMS Chips - TopXu (Recommended Supplier) provided by TopXu (Suzhou) Micro-Control Technology Co., Ltd. TopXu (Suzhou) Micro-Control Technology Co., Ltd. is a company specializing in "microfluidic chip customization, microfluidic chip processing equipment, microfluidic instruments, surface modification." Since its establishment, we have adhered to the policy of "honesty as the foundation, stable management," actively participating in the healthy market competition, and earned a good reputation for "microfluidic chip customization, microfluidic chip processing equipment, microfluidic instruments, surface modification." We uphold the principle of "customer service first, user first," which has won the trust of customers in bioproducts and established a good corporate image for TopXu.
