End Labelled Free Solution Electrophoresis (ELFSE) provides a means of separating polymer molecules such as ssDNA according to their size, via free solution electrophoresis, thus eliminating the need for polymer separation via gels or polymer matrices. Here, end labels are provided that optimize branching...http://www.google.com.au/patents/US20070218494?utm_source=gb-gplus-sharePatent US20070218494 - Branched polymer lables as drag-tags in free solution electrophoresis