A surface plasmon resonance (SPR) detector includes a laser source for generating radiation which is reflected off a concave reflector to a point or line of incidence on the interface between a glass slide and a metal layer. A single pencil beam from the laser is scanned by a moving mirror across a small arc, covering those angles of incidence within which surface plasmon resonance occurs. A sensitive, for example antibody, layer overlies the metal layer to form a combined layer, and a sample to...

Immunostimulating glycopeptides obtainable from the cell walls of immunostimulating bacteria belonging to the Mycobacteriaceae or Actinomycetaceae Family and methods of isolating the glycopeptides.

A timepiece for continuously calculating and displaying the actual biological time of day of an individual. After an initial biological time of day is entered, the timepiece runs at a pre-determined rate corresponding to the rate at which time would progress in a free-running circadian clock for the individual. When the individual is exposed to clock-altering stimuli, such as bright light, the timepiece computes a new operation rate based upon the relative effects of the clock-altering stimuli a...

A biological reactor which is operated using microorganisms and/or enzymes and used for the oxidative conversion of organic compounds, and in which the organic compounds to be converted are employed in the presence of a biocatalyst in the reactor space (4) (anode space) and the enzymes are regenerated at a polarized electrode (1), the polarization of the electrode (1) being effected by means of a catalyst electrode (2) which is separated from the reactor space (4) by a polyelectrolyte (3) and is...

A biological photometer having, in its signal processing unit, a memory unit in which characteristics of hemoglobin change pattern of healthy case and various diseases are stored as reference template, characteristic extraction unit in which characteristic of hemoglobin change patterns are extracted from hemoglobin signals measured in a photometer unit, and a judgment unit in which the characteristics of the hemoglobin change patterns thus extracted are compared with the reference templates stor...

A surface plasmon resonance (SPR) sensor in which a membrane is used to enable the sensitive material to be readily changed to enable tests to be carried out on a sequential basis simply by moving or changing the membrane. In one embodiment, the membrane takes the form of a continuous film (24) which lies against and is moveable across by means not shown, a transparent plate (17) which forms part of the SPR sensor. The film (24) comprises a layer (31) of flexible transparent material to which is...

The followings are disclosed herein: a biomaterial comprising calcium phosphate and a copolymer of lactic acid, glycolic acid and .epsilon.-caprolactone; a biomaterial for the induction of osteoanagenesis, characterized in that a periosteum is attached to the biomaterial comprising calcium phosphate and a copolymer of lactic acid, glycolic acid and .epsilon.-caprolactone; and a biomaterial for the prevention of adhesion comprising calcium phosphate and a copolymer of lactic acid, glycolic acid a...

There is disclosed a porous inorganic material suitable for use as a support for immobilizing biological macromolecules and which comprises a 3-dimensional network of defect aluminium-silicon spinel, said network defining an interconnecting array of pores predominantly in the size range of from 100 to 1000 .ANG.. A process for preparing the porous inorganic material is also disclosed.

A biological assembly for effecting the examination of a sample in a liquid medium under magnification. The assembly includes a transparent slide with a sample chamber and an immediately adjacent overflow chamber formed on one main surface by a thin film. The sample chamber is receptive of a sample in a liquid medium. transparent slide, having a pattern for aligning it with the sample chamber, is disposed over the sample chamber. The transparent slide includes a grid etched into the lower surfac...

An annul protecting portion 23 having a thickness larger than the thickness of a sensor sensitive portion 1 is provided in such a manner as to surround the sensor sensitive portion 1, the sensor sensitive portion 1 together with the protecting portion 23 is placed between living tissues, so as to ensure that the gate portion 7 is not subjected to an external pressure by coming into contact with the living tissues. Further, outer peripheries of lead wires 4 on the sensor sensitive portion 1 side ...