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Design and Applied Technology (Secondary 4-6)

2.3.2 New technologies to improve quality of life

Nanotechnology is a star over the last decade. The changes brought by it to the modern life

range from manufacturing to tools, materials, foods and cosmetics that enable people to

manage large projects and to manufacture products for living and pleasures.

Nanotechnology is considered applied science and technology, covering various topics, such

as colloidal science, device physics, and supramolecular chemistry. In short, it deals with

matter of one micrometre in size or even smaller. A micrometre is between 1-100 nanometres.

What new science and technology might result from such diverse researches is still an

unknown to people. While nanotechnology is used as a marketing term, if not a gimmick, by

some people, many practical researches are being done. For example, building micro-

machines, creating new skins, delivering medicine through nano-tubes, uncovering sources of

pollution by nano-scaled tracers, detecting virus or bacteria by nano-scaled bio-sensors, and

helping digestion or nutrient absorption.

With nanotechnology, it is believed that human beings can achieve goals on environmental

protection, medical implantation, manufacturing processes and many any others that they and

their ancestors could never reach before.

Nanotechnology – the Nano-gear

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