Spectroscopy of Icy Moon Surface Materials

2010 ◽  
pp. 217-245
Author(s):  
J. B. Dalton
Keyword(s):  
Surface Materials

Analysis of the ISS Russian Segment Outer Surface Materials Installed on the CKK Detachable Cassette

2009 ◽  
Author(s):  
S. F. Naumov ◽  
V. A. Borisov ◽  
A. D. Plotnikov ◽  
S. P. Sokolova ◽  
A. O. Kurilenok ◽  
...  
Keyword(s):  
Outer Surface ◽  
Surface Materials

scholarly journals Evaluation of Two Surface Sampling Methods for Detection of Erwinia herbicola on a Variety of Materials by Culture and Quantitative PCR

2007 ◽  
Vol 73 (11) ◽  
pp. 3505-3510 ◽  
Author(s):  
Mark P. Buttner ◽  
Patricia Cruz ◽  
Linda D. Stetzenbach ◽  
Tracy Cronin
Keyword(s):  
Quantitative Pcr ◽  
Sampling Methods ◽  
Collection Efficiency ◽  
Test Chamber ◽  
Surface Sampling ◽  
Laminate Glass ◽  
Erwinia Herbicola ◽  
Surface Samples ◽  
Sampling Protocols ◽  
Surface Materials

ABSTRACT This research was designed to evaluate surface sampling protocols for use with culture and quantitative PCR (QPCR) amplification assay for detection of the gram-negative bacterial biothreat simulant Erwinia herbicola on a variety of surface materials. Surfaces selected for evaluation were wood laminate, glass and computer monitor screens, metal file cabinets, plastic arena seats, nylon seat cushions, finished concrete flooring, and vinyl tile flooring. Laboratory and test chamber studies were performed to evaluate two sampling methods, a sponge and a macrofoam swab, for detection of E. herbicola on surface materials. In laboratory trials, seven materials were inoculated with a known concentration of E. herbicola cells and samples were collected from the surfaces of the materials to determine sampling efficiencies. Culture analysis was ineffective for assessing E. herbicola collection efficiency because very few culturable cells were obtained from surface samples. QPCR demonstrated that E. herbicola DNA was present in high concentrations on all of the surface samples, and sampling efficiencies ranged from 0.7 to 52.2%, depending on the sampling method and the surface material. The swab was generally more efficient than the sponge for collection of E. herbicola from surfaces. Test chamber trials were also performed in which E. herbicola was aerosolized into the chamber and allowed to settle onto test materials. Surface sampling results supported those obtained in laboratory trials. The results of this study demonstrate the capabilities of QPCR to enhance the detection and enumeration of biocontaminants on surface materials and provide information on the comparability of sampling methods.

Recent advances in electrospinning supramolecular systems

2021 ◽  
Author(s):  
Hailong Che ◽  
Jinying Yuan
Keyword(s):  
Biomedical Engineering ◽  
Supramolecular Systems ◽  
Recent Advances ◽  
Surface Materials

Electrospinning is one of the simple, versatile, and convenient techniques for producing nanofibers that have found numerous applications in the field of biomedical engineering, surface materials, and catalysis. Despite the...

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