Instruments

Custom-made light scattering device based on ALV 5000 system.

Custom-made confocal DLS system. FCS mode is available.

Light scattering system manufactured by ALV. Ideal for general-purpose experiments; uses a He-Ne laser and can be used at temperatures ranging from -10 to 90ºC.

A device for observing self-made laser speckles. It visualizes blurred and spatially inhomogeneous states invisible in real-space observation with a long coherence length laser and a high-sensitivity camera.

Viscoelastic behavior such as viscosity, dynamic viscoelasticity, and stress relaxation can be measured. Jigs such as double cylinders, parallel plates, and cone plates are available.

Capable of uniaxial stretching at a maximum stretching ratio of about 20x. 50N air-chuck type clamps were often used, but clip type clamps are surprisingly good.

Equipped with differential refractive index and PDA type UV detector, size exclusion chromatography of aqueous systems and reversed-phase chromatography with high-pressure gradient are possible at temperatures above room temperature. Semi-fractional yield is also possible.

A digital refractometer with 5-digits accuracy, working from 4-125C.

The incremental refractive index (dn/dc) of polymer solutions can be measured. Samples with high viscosity should be diluted and measured.

Allows visual evaluation of anisotropic samples such as crystals and liquid crystals. It is also useful for measuring samples with unclear interfaces, such as gel samples immersed in water.

Centrifugation up to 30,000 x g is possible, and the temperature can be controlled from -10 to 40ºC. It is equipped with a variety of rotors.

Capable of measuring transmittance and absorbance within the wavelength range of 200-1100nm. Photometric range is about -3~3Abs. Equipped with a Peltier temperature controller, allowing temperature control within the range of 0~100°C. Equipped with capillary cell and flow cell for trace sample and DNA melting curve.

Glovebox for anhydrous environment. Hokkaido has low humidity to begin with, so it may be used less frequently.

A device for mixing polymer solutions, etc.

A normal grade freeze dryer.

-30º freezer for polymers.

A small footprint ultrapure water system.

A wide-spaced fume food.

Laboratory Benches.

It has a depth of field that is 20 times deeper than that of an ordinary optical microscope, making it suitable for measuring the size of gels that can only be measured through a water tank or other medium. The current specifications have magnifications from 35x to 1000x and are used to measure the swelling and shrinkage of gels in temperature and pressure cells.