13 May 2007   |   News   |   Update from Politecnico di Milano
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From Milano: brighter photography, cleaner exhausts, stronger jaws

Three new investment opportunities

1. CMOS image colour sensor with spectrum discrimination based on transverse electric fields

The invention concerns an image pixel sensor, able to discriminate the incident chromatic spectrum. Proper series of electrodes are integrated in each pixel on the sensor surface.

It can be applied on the production of high-spatial resolution colour sensors to be used in cameras and digital video cameras.

As far as the devices, acquiring colour images with colour filter masks, are concerned, this invention allows the chromatic discrimination without superimposition to the colour filter device. It allows therefore more economic manufacturing technological processes.

Further, this device can be created with totally standard CMOS low cost technologies.

2. High efficiency Catalytic system

The invention concerns a method for the treatment of the exhaust gases for lean burn engines, or engines working with an excess air (for example the diesel engines).

The patented system can be applied in any type of motor means of transport (for example cars, aeroplanes, ships, etc…) and in the energy production system for stationary applications.

The controlled injection of the reducing gas flux and the upstream charge allow obtaining a controlled decrease of the nitrogen oxides in nitrogen, reducing extremely the creation of by-products (NO, NH3, etc…), as well as avoiding a sudden rise in temperature. Low temperature gradients contribute to reduce the release of NOx, the creation of by-products and then to extend the medium age of the catalyst. These advantages determine a better efficiency and selectivity of the reduction reaction

3. Prosthesis to reconstruct skeletal defects, especially mandibular and maxillary reconstruction

The invention consists of a new mandibular prosthesis in order to reconstruct mandibular and maxillary defects due to neoplasia, trauma, congenital abnormalities, osteoradionecrosis or osteomyelitis. The prosthesis has in fact a double function because it can replace both the bone defect and the teeth grounded to it, restoring in this way both the compromised aesthetic function due to the defect and the masticatory function jeopardised from the real edentulousness.

The new prosthesis can find application in several sectors of the biomedical industry (orthopaedic – trauma, dental).

The endoprosthesis allows first of all to avoid highly invasive and disabling surgical techniques currently used, strongly reducing both the required time for the operation and the postoperative course. The prosthesis is also inert from the biological point of view, it has low production costs, a stability of remaining bone fixation is expected.

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