<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The title nanowires are hydrothermally synthesized with a yield of several hundred milligrams from aqueous mixtures of Fe(NO<sub>3</sub>)<sub>3</sub>, SiO<sub>2</sub>, and NaOH (autoclave, 160—220 °C, 14 h).</p> </abstract>