Hydrogels are among the most widely studied biomaterials in modern drug delivery research. Their high hydrophilicity, ...

To play this audio you need to enable JavaScript. Hello and welcome to The English We Speak, where we explain phrases used by fluent English speakers so that you can use them too. I'm Feifei. Now, ...

We all make predictions and statements about things we think will happen. Sometimes, we end up being very wrong – and it can be quite embarrassing. We teach you a phrase to say when this happens to ...