Slide-ring gel

Karino T, Okumura Y, Ito K, Shibayama M, (2004) SANS studies on spatial inhomogeneities of slide-ring gels. Mactomolecules 37 6177-6182... 

Karino T, Okumura Y, Zhao C, Kataoka T, Ito K, Shibayama M. (2005) SANS studies on deformation mechanism of slide-ring gel. Macromolecules 38 6161-6167 Haraguchi K, Takehisa T. (2002) Nanocomposite hydrogels a unique organic-inorganic network structure with extraordinary mechanical, optical, and swel I ing/de-swelling properties. Adv Mater 10 1120-1124... 

Figure 3.3. Synthesis scheme of azobenzene-containing slide-ring gels. Sakai et al., 2007.

Figure 3.4. Swelling behavior of slide-ring gels in DMSO upon alternate irradia-tion of UV and visible light. D and Do are diameters of the gel and inner diameter of mold capillary, respectively. Source Sakai et al., 2007.

Sakai T, Murayama H, Nagano S, Takeoka Y, Kidowaki M, Ito K, Seki T. 2007. Photoresponsive slide ring gel. Adv Mater 19 2023 2025. 

Kohzo I. (2007), Novel cross-linking concept of polymer network Synthesis, structure, and properties of slide-ring gels with freely movable jnnctions , Polym. J., 39,488-500. 

Slide ring gels (Okumura and Ito 2001) Here the cross-linking is achieved by cyclodextrin rings that are threaded by the polymer chains of poly(ethylene glycol). 

Slide Ring Gels. Slide ring gels are topological networks with some similarities to linear rotaxane assemblies (60,61). In these gels, a number of cyclic... 

Dissolution behavior of polyrotaxane in ionic liquids and prep>aration of ionic liquid-containing slide-ring gels. /. Polym. Sci. Pt. B-Polym. Phys., 44,1985-1994 Sauer, S. Steinke, N. Baro, A. Laschat, S. Giesseknann, F. Kantlehner, W. (2008). 

Precise quantitative work with the SRID test requires that the wells be cut repro-ducibly, and have vertical walls to produce distinct rings. To facilitate measurement, once the precipitin forms, the slide can be rinsed with PBS overnight to remove free Ab from the gel, then stained with a general protein stain such as Coo-massie Blue. With this staining technique, detection limits of 10-7 M antigen have been achieved. 

You now have to put your samples in the rubber rings in the bottom of the upper tank. The first problem you run into is the fact that the sample gel may not be very hard. The reason for this is that the sample material will keep the polymer from polymerizing very tightly. Be careful that you don t tip these tubes upside down, or your sample may fall off When you pull these tubes out of the gray holders, you may find that the gel will slide down a little bit and stick out of the bottom maybe 1 or 2 mm. This is a normal thing to have happen. If it slides out 2 to 3 mm or so, then put the rubber bottom on the end of the tube to keep it from coming out. Pull a tube off of the board. 

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