Dose dependent effect of AbVF, Au and Au-AbVF in the induction of apoptosis in CLL-B cells. Cells were treated with 1, 5 and 25 ug of AbVF/Au/Au-AbVF for 72 h followed by measurement of apoptosis using annexin PI. The % apoptosis was calculated after normalizing the apoptosis in the control cells (no treatment group) to zero; 3a) effect of AbVF to induce apoptosis in CLL-B cells; 3b) effect of Au nanoparticles only to induce apoptosis in CLL-B and figure 3c) effect of Au-AbVF to induce apoptosis in CLL B cells. In the case of AbVF treated group, the amount of AbVF used is exactly the same in the corresponding doses of Au-AbVF. Similarly, in case of gold treated group, the amount of gold nanoparticles used is exactly the same as in the corresponding doses of Au-AbVF.