An advanced process for the manufacturing of aerogel-lined capillaries is presented; these are applicable as liquid-core waveguides for gaining the Raman signal of aqueous samples. With respect to the spin-coating process we have used so far for the manufacturing of aerogel-lined capillaries. the here-presented manufacturing process is advanced as it enables (i) the lining of longer c... https://parisnaturalfoodes.shop/product-category/gf-sourdough-starter/