These facts mean that colloidal solutions
of the NPs in both biological milieus are stable but the NPs form agglomerations.
Schematic representation of the growth states: (b) the colloidal solution
state and (c) the colloidal precipitate state.
Figure 1 presents UV-Vis spectra and SEM images of all three types of NP colloidal solutions
used in SERS human breast tissue measurements.
The colloidal solutions
of the obtained nobel metal nanoparticles were analyzed using UV-vis spectrophotometry (SPECORD 200 Analytik Jena/Cary 5000 UV-Vis-NIR spectrophotometer), SEM (Hitachi S-4800, FE-SEM), TEM (Philips CM 300), and DCS measurement for the knowledge of the differential size distribution spectra of the Stokes equivalent sedimentation diameter (DCS, DC 20000, CPS Instruments, Inc.).
At first, colloidal solutions
of 0.1 wt% natural or organomodified clay nanolayers (NLs or ONLs) have been prepared using magnetic stirrer and ultrasonic waves.
After washing twice with deionized water for 2 min, the substrate-supported precursor film was dipped in the Si[O.sub.2] (0.1%, the self-made colloidal solutions
and then diluted) colloidal solution
for 3 min to get a negatively charged surface, followed by twice washing with water.
Freshly prepared bigger size AgNPs colloidal solution
was characterized by Dynamic Light Scattering.
A colloidal solution
of silver chloride and titanium dioxide was made in a concentration of 0.6 g sanitized T 27-22 silver/L and a pH of 6 at a temperature of 25-30[degrees]C.
Synthesis of silver nanoparticles is expressed as the absorbance of the colloidal solution
of the samples under test.
The synthesized AgNPs were assessed by measuring the absorbance, the size, the shape, and the particle size distribution histogram of the colloidal solution
. The durability of the cotton fabrics finished against bacterial activity was tested by performing the antibacterial activity of the AgNPs treated cotton fabrics towards Gram +ve and Gram -ve bacteria before and after repeated washing cycles (1, 3, 5, 7,10,15, and 20 cycles).
Sol is a colloidal dispersed system or colloidal solution
with particle size in the dispersed phase ranging from 1 to 100 nm.
When a device is immersed in a colloidal solution
of the microgels, the implant, whose surface has been given a positive electric charge, attracts negatively charged microgels.