Very recently, it was reported that with inexpensive templates such as anodic aluminum oxide (AAO), metallic glassy nanowire arrays (MGNWAs) can be prepared by nanoimprinting technique 18, 19, 20, 21, which is a rapid, controllable, green and one-step forming technology. Thermoplastic forming based die nanoimprinting of metallic glasses (MGs) could be a potential cheap way for mass production of metallic array nanostructures due to the net-shape forming abilities of MGs.
In addition, the easy oxidation and sulfuration make the prepared SERS substrates hard to be stored 3. Preparation of SERS metallic array nanostructures with both high sensitivity and high reproducibility still remains difficult and costly for routine SERS detection. But the most used metallic array nanostructures preparation techniques, such as electron beam lithography, nanosphere lithography, focused ion beam pattering, vacuum evaporation and soft-lithography, are limited by the high costs, the enormous difficulties to extend to large scales or complicated preparation steps 7, 11, 12, 17. A number of efforts have been made to improve the reproducibility of metallic substrates, most notably metallic array nanostructures where the well-ordered distribution of hot spots endows them high reproducibility 5, 10, 11, 12, 13, 14, 15, 16. However, although very high EF can be achieved and several SERS substrates with signal relative standard deviation (RSD) less than 7% were reported 7, 8, 9, commonly used substrates based on metals, either prepared by corrosion or sol-gel methods, show very poor reproducibility with fluctuant EFs that may vary across several orders of magnitudes, which severely hinders the applications of SERS 6, 10, 11. Applicable SERS substrates require both high enhancement factor ( EF) and excellent spatial reproducibility 5, 6. By employing surface plasmon polariton resonance occurring in the vicinity of the metal surface, especially narrow nanogaps between sharp corners and edges of metallic nanostructures, namely “hot spots” 3, 4, 5, the sensitivity of SERS can reach single molecular level 3.
Surface enhanced Raman scattering (SERS) provides a powerful non-destructive spectroscopy technique for such identification, which is comparable to single-molecule fluorescence spectroscopy but without suffering from rapid photobleaching 1, 2, 3. The Construction Data Services team has the skills needed to handle the largest and most complex projects as well as the ability to meet your most demanding work load.Detection of trace amounts of molecules is a longstanding challenge in catalysis, biology, biomedicine and molecular nanotechnology. Ron is a skilled presenter, a contributing author on Machine Control Online, and Ron was a presenter at the 2009 Transportation Research Board's (TRB) meeting in Wash.
SPECTRA PRECISION TERRAMODEL 9.60 PLUS
Later Ron joined Trimble Navigation (includes Plus 3 Software, Spectra Precision, and then Trimble) where he trained people around the world on Terramodel and Data Preparation and was involved with the initial releases of 3D Machine Control Ron actually started the initial process of data preparation in 1997. Ron became a licensed Land Surveyor in 1977.
Ron's career spans over 40 years working with engineering, surveying, design and construction businesses. Our Data Modeling experience and expertise is how 3D Data Modeling started! Ron was key to the start of data modeling working with (now) Trimble Navigation in 1997. CDS is now managed by Ron Ciccarone, President.
Starting as a division of Spectra Integrated Systems in 2003, CDS was then created as a separate business entity in 2010 - Construction Data Services Inc.