According to reports on the British media on the 9th, two British scientists have developed a device for "sniffing" urine samples for diagnosis of bladder cancer because the sensor device in the device can detect gaseous chemicals released from bladder cancer cells. Professor Prubert of the University of Liverpool and Professor Ratcliffe of the University of the West England developed the instrument. Two scholars said that the preliminary test showed that the accuracy exceeded 90%, but further research was needed to improve the test method. If this test method can eventually be widely used, doctors will be able to confirm the diagnosis earlier and increase the patient's chances of recovery.
According to reports, there are 10,000 cases of bladder cancer in Britain every year. The medical community has been looking for ways to diagnose the disease earlier. Early bladder cancer has a higher chance of cure. Experts previously believed that urine odor was the key to research, because studies have shown that dogs can smell the smell of cancer.
Professor Ratcliffe said that after heating the urine samples, the instruments they developed were used to analyze the gaseous chemicals released by the samples. Of the 98 test samples, 24 were from male bladder cancer patients and 74 were from men with bladder problems but no cancer.
Professor Prubert said that they need more samples to further test the accuracy of the instrument.
Dr Sarah Hazell of Cancer Research UK, a charity organization, affirmed this research report. “But this test method is still in the preliminary stage and requires larger samples, including male and female. Sample to test the instrument."
Furniture edge sealing glue can be divided into three categories according to the different base materials:
EVA (ethylene-vinyl acetate copolymer resin) base material hot melt adhesive, this hot melt adhesive can be divided into two types with filler and without filler. Using EVA as the base material is the most common production technology for furniture edge sealing adhesives, and its main limitation is poor heat resistance. The ambient temperature of panel furniture sealed with EVA hot melt adhesive shall not be higher than 120°C;
POL YAMIDE (polyamide) based hot melt adhesive, this hot melt adhesive has good heat resistance and fast curing characteristics, the main disadvantage is that it is expensive.
HMPU (polyurethane) base material hot melt adhesive, it is a kind of hot melt adhesive with the best performance, and it is the guarantee of high quality sheet edge sealing. It is expensive and requires special usage.
The performance of furniture edge sealant
1. Viscosity of furniture edge sealant
The viscosity of furniture edge sealing glue does not directly reflect the performance of the glue. In general, the higher the viscosity of the furniture edge sealant, the better its initial tack strength, but the worse the coating performance. Low-viscosity hot melt adhesives have a smaller amount of glue and better wetting properties. Some hot melt adhesives with low viscosity and fast curing speed may also have high initial tack strength.
2. Density of furniture edge sealing glue
The density of furniture edge sealant is generally 0.95-1.6g/cm3, and its density depends on the amount of filler.
3. Softening point and use temperature of furniture edge sealing glue
The softening point is an indicator of the heat resistance of the furniture edge sealant. The higher the softening point, the less likely the furniture edge sealant will melt. At the same time, softening point is also an important aspect to measure the temperature resistance of panel furniture.
4. The opening time of the furniture edge banding glue and the feeding speed of the edge banding machine
Furniture edge sealant is widely used in the market because of its solvent-free, water-resistant, and environmental-friendly features.
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