Poly(dimethylsiloxane) (PDMS)Poly(dimethylsiloxane) stamps for microcontact printing with polar inks,which no longer need to be reactivated after each printing step, are revealed. The silicone surface is modified by linking a hydrophilic polyethylene glycol chain to SiOH groups created on the surface ...
Polydimethylsiloxane (PDMS, molecular formula (C2H6OSi)n, density 965 kg/m3, boiling point: < 200℃, shear modulus between 100 kPa and 3 MPa, loss tangent less than 0.001) is a viscoelastic polymer (elastomer). PDMS is widely used in microfluidic technology thanks to some of its unique ...
Poly(dimethylsiloxane) (PDMS) is the most widely used stamp material in microcontact printing. It has excellent properties with respect to versatility, chemical inertness, and mechanical stability. However, it has an inclination to contaminate printed substrates with low molecular weight siloxane fragments...
1997a). The important feature of using PDMS as the feature replication mold is its flexibility and its ability to achieve conformal contact between the PDMS stamp and the substrate. The mold can be used to replicate patterns on a nonplanar surface. These techniques are able to generate features...
We firstly introduce a facile method for the site-specific direct physical exfoliation of few-layer graphene sheets from cheap and easily enlargeable graphite grown on a Ni foil using an optimized polydimethylsiloxane (PDMS) stamp. By decreasing the PDMS cross-linking time, the PDMS elasticity is...
An elastomeric stamp, fabricated from poly(dimethylsiloxane)(PDMS), was used to deliver alkanethiol to predetermined regions of the surface of an evaporated... A Kumar,HA Biebuyck,GM Whitesides - 《Langmuir》 被引量: 2352发表: 1994年 Controlled wrinkling as a novel method for the fabrication of...
compared to other reported thermoplastic PDMS elastomers44,45,46,47,48,49. Example of using the crosslinked PDMS as recyclable stamp material has been demonstrated. The introduction of transesterification reaction into PDMS network broadens the practical application areas of recycling silicone elastomers. ...
Product name:Hydroxyl Polydimethylsiloxane OH polymer Silicone oil;other name:Poly(phenylmenthylsiloxane, divinyl terminated);CAS register number:70131-67-8;viscosity:15~3000000 (based on customer request);Hydrogen (H)::1.55%-1.60%;Volatiles::2.0% max.
The physically flat but chemically structured PDMS stamp was induced by the selective ink transport on the sub-100 nm to many μm length scale. This chemical engineered PDMS was used to generate gold arrays by further a wet etching process. Although the technique was not able to etch the ...
We find negatively charged SDS predominately exists on metallic SWNTs rather than on semiconducting SWNTs; it strongly combines with positively charged H atoms in amine groups on PDMS and, thus, can be peeled off and separated using an amine-functionalized PDMS stamp together with metallic SWNT...