The lunar soil (regolith) contains iron, aluminum, calcium, silicon, titanium, and oxygen, as well as trace amounts of lighter elements such as carbon, sulfur, and nitrogen.

月球的土壤(风化层)含有铁、铝、钙、硅、钛和氧等元素，此外还发现有大量较轻元素如碳、硫和氮等。

youdao

In lab tests, Barron and li used silicon dioxide to treat P25, which is a commercial form of titanium dioxide.

在实验室测试中，巴伦·和李使用P 25二氧化矽治疗，这是一种商业形式的二氧化钛。

youdao

Comprising of seven tiny layers — each one is 50-100 nanometers in height — the coating is made of silicon dioxide and titanium dioxide nanorods positioned at an oblique Angle.

涂层组成于7个微小的层面，每个层面的高度在50到100纳米之间。涂层材料是由具倾斜角度的二氧化硅和二氧化钛的纳米棒组成。

youdao

Some studies have linked the inhalation of titanium dioxide and silicon dioxide dust to cancer in animals, but it has not been proven in humans.

BBC: How toxic is Hungary's red sludge?

Much work is left to get the proteins producing the kind of silicon or titanium dioxides that could run a computer or power your house, but the dream is to have synthetic creations that organically produce what would normally need a mining expedition -- imagine something akin to the glass-like Venus' Flower Basket sponge (pictured above) sitting in an Intel factory.

ENGADGET: UCSB engineers proteins that make silicon, leads hipsters to insist on organically-grown computers

Comprising of seven tiny layers, each 50 to 100 nanometers in height, the coating is made of silicon dioxide and titanium dioxide nanorods positioned at an oblique angle.

CNN: New nano coating boosts solar efficiency