Acrylic chip

An acrylic chip was fabricated by stereolithography without an assembly process such as bonding. This fabrication method is a 3D method by solidifying a photopolymerizable resin layer-by-layer via the scanning of a UV laser beam. A special double-controlled surface method was adopted in order to produce a smooth and transparent surface for high-quality optical detection [240]. 

Back-transient ITP was carried out for temporary stacking of samples in an acrylic chip. This stacking works when there is EOF suppression (i.e., the background electrolyte contains 25 mM HEPES, pH 7.4, 1% PEO). However, this stacking effect was not satisfactory in the usual pinched injection with push-back... 

An IEF/CGE separation of proteins (GFP, FITC-labeled ovalbumin) was carried out on an acrylic chip. EK mobilization at - 20 pm/s allows repeated injections of the focused bands into the cross-channels for CE separations. Even though the ampholyte entered into the CE channel, normal CE occurred at a... 

To improve light collection for absorbance detection, a photosensor array was integrated on an acrylic chip with a smooth and transparent surface. This allows absorbance measurement (420-1000 nm) down to 0.0004 AU. Detection of 5 mg/ml blue dextran and 10 mg/mL each of lactic dehydrogenase (39 kDa) and P-galactosidase (116 kDa) has been carried out [240]. 

We describe here the development of a new rapid and onsite BOD monitoring system that arrayed and inomobilized lunoinous cells on the holes (diameter 1000 pm) of an acrylic chip. 

A marine lumious bacterium. Photobacterium phosphoreum IFO 13896 was grown with the ATCC culture medium no. 1163 at 15 °C for 15 h corresponding to the optimum conditions in order to obtain the maximum bioluminescence. After centrifugation (15000 rpm) of the culture and after twice rinse of harvested cells with the growth medium without the carbon source, cells were immobilised in the holes (diameter KXK) pm, depth 100 pm) on an acrylic chip (3cm X 3cm), that were fabricated with a NC micro-fabrication machine. For immobilisation of the cells 3% sodium alginate was used in this procedure. Detection of bioliuninescence... 

Aquaflo, Acrylic chip color concentrate, Indol Color, Div. of Magruder Color Co. Inc. 

Ill Series Polyrock - A Multi-coloured Acrylic Chip Filled... 

Fig. 21 Representative microfluidic device and resulting data from ATRP on a chip a image of a microfluidic device (dimensions 25 mm x 75 mm) fabricated from UV curable thiolene resin between two glass slides b reaction data for ATRP of HPMA synthesized on a chip showing the correlation of flow rate (or residence time) to reaction time and resulting conversion of monomer (M) to polymer (ln([M]o/[M]) c comparison of number average molecular mass (M ) and poly-dispersity for -butyl acrylate prepared in a traditional round bottom flask ( Flask ) and on a chip ( CRP Chip ). (Reproduced with permission from [102])...

Polymer beads have also been tagged by treating them after each new diversity-introducing reaction with dye-containing, colloidal silica particles, which can be irreversibly adsorbed on the surface of the beads with the aid of polyelectrolytes such as poly(diallyldimethylammonium chloride) and poly(acrylic acid) [42,43]. Larger portions of support can also be linked to a chip that enables electronic tagging with a radio emitter [44-46]. 

Red Oak is the wood most used for the production of irradiated acrylic-wood parquet flooring,however acrylic Aspen chip board and acrylic particle board are finding their way into the flooring market. Smaller amounts of maple, ash and black walnut have been used. The polymer loading of red oak is about 40% which makes the acrylic-wood flooring quite expensive, approximately three times that of ordinary red oak parquet flooring. 

Lucite positive relief structures. Epofix was selected as the chip substrate, among acrylic-polyester resin (Casolite) and epoxy resin (Araldite), because of its having the best mechanical properties and the least chemical interference needed for fabricating the MS chip [780]. In another report, PDMS was chosen over epoxy to fabricate MS chips because of its less chemical noises (interferents) in MS, and over polyurethane because of good adhesion properties. Even so, in the use of PDMS its curing (at 70°C) should be carried out for at least 72 h to further reduce the chemical noise [800]. 

Besides acrylics or PMMA, injection molding was also carried out on regular and optical-quality PC chips [187]. Furthermore, three PS plastic plates were injection molded to create the microfluidic channels, which were employed for a biomolecular interaction study. The upper plastic plate with ridge patterns was ultrasonically welded to the middle plate. The middle plate was sealed to the bottom plate with a molded silicone rubber layer [188],... 

A molecular fluorine excimer laser (157 nm) was also used to ablate PMMA chips to a depth of 500 pm [197], It was also reported that acrylic (or PMMA) plates were processed using a laser-cutting machine [198],... 

The thermal conductivity (in W m 1 K-1) of PDMS (0.15) appears to be sufficient, although it is lower than PC (0.16), PET (0.2), glass (0.7-1.0), fused silica (1.38), and silicon (124) [159,246]. Since the channels in the plastic chip are usually narrow (i.e., with high surface-to-volume ratio), the heat dissipation properties of the plastic (e.g., acrylic) channel compared favorably with that of a fused silica capillary (75 pm i.d.) [186]. 

Mod tile cover Silicone tube Acrylic module Screw valve Fluidic ciiip Chip guide... 

FIGURE 7.36 Schematic of the PMMA chip electrospray arrays used to analyze sequentially eight samples (A, copper electrode B, acrylic bar C, electrical cable D, plastic box E, spring on an acrylic rod). The insets show the dimensions of the chip and the close-up view of a channel [781]. Reprinted with permission from the American Chemical Society. 

Cultures of primary cardiac myocytes (chick embryo) were formed on fibronectin patterned acrylic surfaces [198]. A microtextured PDMS chip with 20-urn-wide pegs was used to promote cell culture. After coating the PDMS chip with a thin layer of laminin, neonatal rat cardiac myocytes were cultured on it. The cultured cells are typically 50 p.m in length and 10-15 p.m in diameter. The PDMS chip was cast on a mold with parylene structures patterned on a Si wafer. Using the same mold, a poly(lactic/glycolic acid) (PLGA) chip could also be made for culture of rat cardiac fibroblasts [900]. 

Fintschenko, Y., Choi, W.Y., Ngola, S.M., Chip electrochromatography of polycyclic aromatic hydrocarbons on an acrylate-based UV-initiated porous polymer monolith, Fres. J. Anal. Chem. 2001, 371(2), 174-181. 

Our houses are built of wood (cellulose and lignin), sheathed with particleboard (wood chips pressed with plastic resin), wrapped with plastic sheeting, clad with siding (vinyl), and decorated with plastic shutters. Buildings with wood siding are covered with paint. Inside, water flows through plastic pipes, the floors are covered with tiles (vinyl) or carpeting (polyester, nylon), the walls are covered with wallpaper (vinyl) or painted (acrylics), and the... 

Fig. 2 Diagram of the nanoprinting process. A master chip is produced with a DNA oligonucleotide silanized with a thiol silane. An acrylamide thin layer is allowed to form between an empty slide coated with acrylic silance and the master chip. After the acrylamide becomes polymerized, the complex is heated for 10-60 s. When the master chip is removed, the acrylamide thin layer will remain attached to the empty slide to form a copy chip. Such a copy process can be done repeatedly from a single master chip...

Among the processes used for the formation of polyolefins, the longest-known but least selective one is free radical polymerization. A free radical species X produced e.g. by thermolysis of benzoyl peroxide or by photolysis of azabisisobutyronitrile (AIBN) - can react with the double bond of a vinyl derivative H2C=CHR to form a new radical of the type XCH2-CHR which can then add another H2C=CHR unit repetition of this process leads to polyolefin formation (Figure 2, top). This process works best for vinyl derivatives with unsaturated side groups, which provide resonance stabilization for an adjacent radical centre, e.g. with vinyl and acrylic esters, vinyl cyanides and vinyl chloride and with styrene and 1,3-dienes. It is extensively used in the emulsion polymerization of vinylic and acrylic derivatives and in the light-induced formation of photoresists for the nanofabrication of semiconductor chips and integrated electronic circuits. 

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