Princípio de funcionamento do esterilizador de escova de dentes

O esterilizador de escova de dentes usa raios ultravioleta para esterilizar. Ele usa uma lâmpada ultravioleta de cátodo frio, que pode emitir raios ultravioleta com um comprimento de onda de 253,7 nm. É excitado pela baixa pressão de vapor de mercúrio (< 10-2="" pa)="" and="" emits="" uv="" light="" waves.="" there="" are="" mainly="" two="" emission="" lines:="" one="" is="" 253.7nm,="" which="" can="" make="" deoxyribonucleic="" acid="" (dna),="" ribonucleic="" acid="" (rna)="" and="" nuclear="" protein="" in="" bacteria="" absorb="" ultraviolet="" rays.="" after="" the="" bacteria="" absorb="" ultraviolet="" rays,="" it="" causes="" dna="" strand="" breakage,="" causes="" cross-linking="" rupture="" of="" nucleic="" acids="" and="" proteins,="" kills="" the="" biological="" activity="" of="" nucleic="" acids,="" and="" causes="" bacterial="" death.;="" the="" other="" is="" 185nm.="" ultraviolet="" rays="" of="" this="" wavelength="" are="" used="" for="" high="" vacuum="" sterilization.="" vacuum="" ultraviolet="" rays="" can="" ionize="" oxygen="" in="" the="" air="" to="" produce="" ozone,="" so="" as="" to="" achieve="" the="" purpose="" of="" purifying="" the="" air.="" the="" dispersion="" of="" ozone="" can="" just="" make="" up="" for="" the="" shortcomings="" of="" ultraviolet="" rays="" only="" propagating="" along="" a="" straight="" line="" and="" disinfection="" has="" dead="">