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...physical chain entanglement is provided by terminating the short chains with crystalline segments. Design: Has been used produce a range of shapes and sizes from 2.5 g to 9 kg, with wall thicknesses down to 1.5 mm. Low stresses applied to polymer during mould filling mean that complex shapes can be made without fear of distortion or stress-cracking. Ideal for prototyping...

...physical and chemical properties which can easily be manipulated. The unique properties of the gold surface mean we can attach different therapeutic molecules (such as drugs, DNA and antibodies) to their surface. As gold nanoparticles can bear a high drug load, this makes them ideal carriers for multiple therapeutic agents (Figure 1). Delivering drugs to the brain Because...

...physics equation which states the relationship between wave length, frequency and speed: wave speed = frequency x wavelength In the video the melt points on the chocolate are 6cm apart – which is half the wavelength – so the wavelength is 12cm. From the back of the microwave unit we have the frequency of the microwave: 2,450Mhz. So that means... speed of the wave = 12...