Nanofibers scanning electron

Fig. 2 Shape and structure of BC. a molecular cellulose chain, b scanning electron microscopy (SEM) of freeze-dried nanofiber network (magnification 10000), c pellicle of bacterial nanocellulose from common static culture...

Huang L, Apkarian RP, Chatkof EL (2001) High-resolution analysis of engineered type I collagen nanofibers by electron microscopy. Scanning 23(6) 372—375... 

F. Hang, et al.. In situ tensile testing of nanofibers by combining atomic force microscopy and scanning electron microscopy. Nanotechnology 22 (36) (2011) 365708. 

The electrospun nanofibers morphology, homogeneity, and their microstructure are characterized by a bench scanning electron microscope (neoscope JCM-5000). The fiber diameters and their standard deviations are measured using Image-J software. 

Scanning electron microscopic (SEM) images of commercial P(3HB) nanofibers spun from l,l,l,3,3,3-hexafluoro-2-propanol (HFIP) solution with a polymer concentration... 

Products were characterized by Fourier transform infrared spectrophotometry-attenuated total reflectance (FTIR-ATR), ultraviolet visible (UV-Vis) spectrophotometry, scanning electron microscopy (SEM), and broadband dielectric/impedance spectroscopy (BDS). New absorption bands were observed corresponding to the conjugated pol5mieric units by FTIR-ATR and UV-Vis spectrophotometric analysis. The influence of concentration of PEDOT-PSS and PEDOT on the composite electrospun nanofibers was studied by EIS. Morphologies of electrospun nanofibers were also investigated by SEM. 

Scanning electron microscopy images of commercial-P(3HB) nanofiber spun from l,l,l,3,3,3-hexafluoro-2-propanol (HFIP) solution with a polymer concentration ranging from 0.5 to 2.5 wt% are shown in Pig. 1 la (Ishii et al. 2007). Whereas the nanofiber spun from 2.5 wt% solution had an average diameter of 560 nm, nanofibers spun from 1 and 0.5 wt% solutions had average diameters of 350 and 280 nm, respectively. This result indicates that the diameter of nanofibers can be controlled by the concentration of the polymers. 

Fig. 11 a Scanning electron microscopy images, b WAXD profiles before and after partial enzymatic degradation, and c transmission electron microscopy image and electron diffraction pattern (inset) of P(3HB) nanofiber. (Reprinted with permission from Ishii et al. 2007. Copyright 2007, Elsevier B.V.)... 

Figure 14 shows the scanning electron microscopy image of partially enzymatically hydrolyzed P(3HB) nanofibers spun from 1 wt% HFIP solution (Ishii et al. 2007). In contrast to the smooth surface of nanofibers before enzymatic treatment... 

A sigiuficant blue-shift in both photoluminescence spectra and fluorescence images of the PPV fibers was observed after doping with poly(vinyl alcohol) and CdS. The fluorescence and scanning electron microscope (SEM) images of the nanofibers are shown in Figure 3.13. 

The morphology can be controlled using poly(vinyl alcohol) (PVA)/PPV precursor polymers [153,154]. The morphology of fibers can be characterized by scanning electron microscopy and fluorescence microscopy. The fluorescence spectra of PVA/PPV nanofibers and of composite nanofibers made from PPV/MEH-PPV exhibit an appreciable blue-shift, a stronger intensity of fluorescence, and a higher surface photovoltage in comparison to bulk material [154,155],... 

Figure 1.1 Scanning electron micrographs (SEM) of nanoceUulose obtained from citrus processing waste from oranges (CPWO) (a) nanoceUulose from enzymatic hydrolysis, (b) isolated nanofiber from enzymatic hydrolysis, (c) nanoceUulose from fermented enzymatic hydrolyzate and (d) isolated nanofiber from fermented enzymatic hydrolyzate [46].

MOF solution was used for electrospinning. They studied the diameter and morphology of the nanofibers using an optical microscope and a scanning electron microscope (Fig. 9). This fiber display diameters range from 60 nm to 4 pm. 

FIGURE 8.18 Scanning electron micrograph showing the growth of carbon nanofibers on the surface of a bundle of a carbon fiber. 

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