Superscript before a letter using b quote
<p>How can I add a superscript before to more than a  character (letter or a word) using bquote?</p>

<p>I used bquote as follow:</p>

<p><code>bquote(X^2)</code>
and
 <code>bquote("Proteins "*log[2]~"FC")</code></p>