## 3 Results
### Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM-EDS)  
SEM analysis provides information on the morphology (Figure 6) and elemental composition (Table 1) of the turmeric powder (_Turmeric_) and the thin films obtained by PLD technic (_Curcuminoid-silanol film_). \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & \multicolumn{4}{c}{**Atom (\%)**} & \multicolumn{4}{c}{**Weight (\%)**} \\ \cline{2-9}
**Element** & **Turmeric** & \begin{tabular}{c} **Curcuminoid-** \\ **Silanol** \\ **Film/Glass** \\ \end{tabular} & \begin{tabular}{c} **Curcuminoid-** \\ **Silanol** \\ **Film/Hemp** \\ \end{tabular} & \begin{tabular}{c} **Curcuminoid-** \\ **Silanol** \\ **Film/Glass** \\ \end{tabular} & \
\begin{tabular}{c} **EDS** \\ **Film/Glass** \\ \end{tabular} &
\begin{tabular}{c} **Error \%** \\ **Film/Hemp** \\ \end{tabular} \\ \hline Carbon & 63.89 & 65.39 & 65.96 & 56.49 & 51.84 & 53.37 & 2.2 \\ Oxygen & 35.49 & 29.83 & 33.43 & 41.80 & 31.50 & 39.41 & 1.2 \\ Iron & 0.01 & 1.62 & 0.29 & 0.02 & 5.96 & 0.29 & 0.01 \\ Copper & - & 0.99 & 0.01 & - & 4.18 & 0.04 & 0.09 \\ Potassium & 0.53 & 1.17 & 0.15 & 1.52 & 3.01 & 0.43 & 0.11 \\ Chromium & 0.01 & 0.46 & 0.09 & 0.01 & 1.60 & 0.33 & 0.1 \\ Nickel & & 0.31 & 0.03 & - & 1.19 & 0.11 & 0.13 \\ Zinc & & 0.12 & 0.01 & - & 0.51 & 0.01 & 0.05 \\ Silicon & 0.08 & 0.11 & 0.04 & 0.17 & 0.21 & 0.09 & 0.05 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Compared elemental composition of turmeric powder and thin films deposited on glass slab and on hemp fabric, respectively. Figure 6: SEM images of turmeric powder (Turmeric) 350\(\times\) (**a**); Curcuminoid-silanol film/Glass 5 kx (**b**); Ag/Curcuminoid-silanol film/Glass 5 kx (**c**); Curcuminoid-silanol film/Hemp 1 kx (**d**); Ag/Curcuminoid-silanol film/Hemp 1 kx (**e**); detail of Ag/Curcuminoid-silanol film/Hemp 5 kx (**f**). SEM images show polymeric agglomerations for the _Curcuminoid-silanol film/Glass_ and _Curcuminoid-silanol film/Hemp_ proving self-organization properties, and a good coating of the fibers in the _Curcuminoid-silanol film/Hemp_. Added silver particles are uniformly dispersed on top of the curcuminoid thin films and within the hemp fibers from the fabric texture. The dimensions of measured silver particles vary from 2 to 3 \(\upmu\)m droplets to a nano-metric layer deposited on the substrate [22]. The second role of silver layer is to fix and sustain the curcuminoid-silanol thin film on the substrate. Both variants with and without very thin silver layer present interests in medical field. Elemental composition shows, among specific organic elements such as carbon and oxygen, an atomic percentage of 0.08% silicon in turmeric powder and 0.04% in the composition of the curcuminoid thin film deposited on hemp. The 0.11% of silicon determined in the _Curcuminoid-silanol film/Glass_ could be due to the influence of the substrate composition. Carbon elemental composition is similar in turmeric powder and thin films deposited on both glass and hemp, with only slight differences. In atomic percentage, the variation of carbon percentage is from 63.89% in turmeric powder to 65.38% in _Curcuminoid-silanol film/Hemp_, the latter being under the influence of the hemp substrate composition. The atomic composition of oxygen was of 35.49% for turmeric powder, 29.83% for _Curcuminoid-silanol film/Glass_, and 33.43% for _Curcuminoid-silanol film/Hemp_. The balance to 100% is split between different other elements such as Fe, Cu, K, Cr, Zn, and they reflect the vegetal material property to absorb metals, the plant roots and rhizomes retaining most of them. The same mechanism made possible absorption of silicon which proves affinity for the curcuminoids to form silanol bond on their terminal groups. Laser induced fluorescence (LIF). LIF also provides information about chemical structure of the investigated material when fluorophore groups are present and about UV laser beam interaction with the material, which are the curcuminoids in this case.