I applied to a variety of biological-based programs, including 2 in BME. I did my BME undergrad @ Georgia Tech, and I have not heard from either of my 2 BME schools (including Duke). A grad student I met with this weekend while at an interview (biological sciences) said that the BME timeline is generally later (notifications in mid-Feb, interviews in March). Don't know how standard that is across the board, but she did apply to Georgia Tech BME.