%&LaTeX
\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{1}

\bibitem{Asapu_etal2017} {\textquotedblleft}\textit{Silver-polymer core-shell nanoparticles for ultrastable plasmon-enhanced photocatalysis}{\textquotedblright}. Asapu R, Claes N, Bals S, Denys S, Detavernier C, Lenaerts S, Verbruggen SW, Applied catalysis : B : environmental \textbf{200}, 31 (2017).   http://doi.org/10.1016/j.apcatb.2016.06.062

\end{thebibliography}

\end{document}

