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Han J.,China Institute of Medical Equipment | Wang Z.,National Bio Protection Engineering Center | Wu L.,China Institute of Medical Equipment | Wu C.,China Institute of Medical Equipment | Zhang W.,China Institute of Medical Equipment
Advanced Materials Research | Year: 2012

In this paper, a small medical waste pyrolysis furnance, which could disposal 1t wastes, is designed for the safe disposal of medical wastes, by in-depth research of pyrolysis, detailed calculation analysis, and considering the experimental results and other factors in general. The flue gas treatment system of the small medical waste pyrolysis furnance is designed applying 3T principle, and the dioxin's later synthesis is controlled, so the dioxin emissions problem is also resolved. The results show that the small furnance has reasonable configuration, works reliably, and it could self-support freely, its emissions meet the national standards for the dioxin emissions 0.213 ng/m 3. © (2012) Trans Tech Publications, Switzerland.

Lin S.,National Bio Protection Engineering Center | Lin S.,China Institute of Medical Equipment | Wu J.-H.,China Institute of Medical Equipment | Jia H.-Q.,China Institute of Medical Equipment | And 4 more authors.
RSC Advances | Year: 2013

One kind of polymeric quaternary ammonium salts derived from dimethylaminoethyl methacrylate are synthesised and their antibacterial efficacy is evaluated, indicating that the antibacterial efficacy is greatly enhanced after polymerisation and the mechanism of this effect is clarified by zeta potential tests, SEM and protein leakage measurements. © The Royal Society of Chemistry 2013.

Che W.,China Institute of Medical Equipment | Liu C.,China Institute of Medical Equipment | Liu C.,National Bio Protection Engineering Center | Yang K.,China Institute of Medical Equipment | And 3 more authors.
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | Year: 2016

Fluorescent carbon dots are one of the most popular carbon nanomaterials after carbon nanotube, nano-diamond and graphene. Owing to its advantages of excellent photoluminescence, small size features, good biocompatibility, low cytotoxicity and ease to achieve surface functionalization compared with conventional semiconductor quantum dots, carbon dots have great application value in the field of environmental detection, biochemical sensing, drug carriers, photocatalytic and electrocatalytic technology and other areas. The progress in composition methods, structure, property and application research of carbon dots are summarized, the bottleneck problems of restricting carbon dots application development are pointed out and main further research direction is prospected. © 2016, BUAA Culture Media Group Ltd. All right reserved.

Chen F.,Tianjin University | Chen F.,National Bio Protection Engineering Center | Yan C.,Tianjin University | Du Z.,Tianjin University | And 2 more authors.
IFMBE Proceedings | Year: 2013

The technology of detection of optical parameters for turbid medium with high sensitivity is of significant meaning. Based on the technology of differential modulated laser detection, the diode laser is drived with a modulation frequency to generate frequency difference between the measuring light and reference one, and the interference of the two beam results in a beat signal, which frequency is proportional to the optical path difference between the measuring light and reference one. The experimental hardware system is built, and the characteristics of air, and water, and introlipid is tested. The beat signal is processed with baseline correction, and intercepting valid signal, and digital filtering, and boundary normalization, and data jointing, and fast Fourier transform, and optical-length analysis. The optical-length of the scattered light in the introlipid is detatched, and the optical-length distribu- tion of the scattered light in the introlipid is obtained. © 2013 Springer-Verlag.

Jia H.Q.,National Bio Protection Engineering Center | Li Y.J.,National Bio Protection Engineering Center | Sun B.,Academy of Military Medical Science | Zhao S.Q.,Academy of Military Medical Science | And 5 more authors.
Biomedical and Environmental Sciences | Year: 2013

Objective To evaluate the performance of vaporized hydrogen peroxide (VHP) for the bio-decontamination of the high efficiency particulate air (HEPA) filter unit. Methods Self-made or commercially available bioindicators were placed at designated locations in the HEPA filter unit under VHP fumigation. The spores on coupons were then extracted by 0.5 h submergence in eluent followed by 200- time violent knocks. Results Due to the presence of HEPA filter in the box, spore recovery from coupons placed at the bottom of the filter downstream was significantly higher than that from coupons placed at the other locations. The gap of decontamination efficiency between the top and the bottom of the filter downstream became narrower with the exposure time extended. The decontamination efficiency of the bottom of the filter downstream only improved gently with the injection rate of H2O2 increased and the decontamination efficiency decreased instead when the injection rate exceeded 2.5 g/min. The commercially available bioindicators were competent to indicate the disinfection efficiency of VHP for the HEPA filter unit. Conclusion The HEPA filter unit is more difficult than common enclosure to decontaminate using VHP fumigation. Complete decontamination can be achieved by extending fumigation time. VHP fumigation can be applied for in-situ biodecontamination of the HEPA filter unit as an alternative method to formaldehyde fumigation. © 2013 The Editorial Board of Biomedical and Environmental Sciences.

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