Erratum: The grab-and-drop protocol: A novel strategy for membrane protein isolation and reconstitution from single cells (Analyst (2014) DOI: 10.1039/C4AN00059E) - Schrems, A; Phillips, J; Casey, D; Wylie, D; Novakova, M; Sleytr, UB; Klug, D; Neil, MAA; Schuster, B; Ces, O (Analyst, 2014)