Bending Mattress and Antibacterial Effect of TiO_2Ag/Chitosan-nanoparticle-applied Intelligent Patient Bed

摘要

In this work, we developed a nano-TiO_2Ag/chitosan powder that was coated on a bendable and antibacterial double mattress. The bacteriostatic rate of the mattress is 99%, and it can reduce the incidence of bedsores in patients. We studied the bacteriostatic powder containing trace amounts of nAg and found it to have a very high bacteriostatic effect. Because the TiO_2 only enhances the bacteriostatic effect under light, we expect that the bacteriostatic ability at night to be improved by adding chitosan and nAg. Therefore, the bendable and antibacterial double mattress can possess bacteriostatic ability over 24 h without light. The experimental results of this research showed that the TiO_2 powder with a small particle size possesses good bacteriostatic ability. The optimal sintering temperature and time for the bacteriostatic powder are 600 ℃ and 4 h, respectively, and its average particle size is 688.5 nm. After sintering, the bacteriostatic effect is improved. Additionally, when the nAg and chitosan are added, the bacteriostatic power of the TiO_2 powder is maintained. The bed coated with TiO_2 has a 50% antibacterial effect. This can reduce the frequency of mattress disinfection, which decreases the cost of mattress cleaning. Our experimental results showed that TiO_2Ag/chitosan nanoparticles possess a better antibacterial effect (99%), which can further reduce the cost of mattress cleaning. With the growing shortage of nurses, smart beds can reduce their workload and also reduce the risk of infections in patients and their families during wound care. The bilateral rollover function of smart beds can greatly reduce the burden on the care provider.