Figure 1.
(a–d) Scanning electron microscope (SEM) micrographs and (e–h) Scanning electron microscopy-energy dispersive X-ray (SEM-EDX) spectra of the mSrHANFs. (a,e) 0mSrHANFs; (b,f) 1mSrHANFs; (c,g) 2mSrHANFs; (d,h) 3mSrHANFs.
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