Ronald E. McNair Program


Tonya Nicole Smith
  SCHOOL:  Alcorn State University
  MAJOR:  Nursing
  MENTOR:   Dr. Alfred Mikell
  EXPECTED GRADUATION DATE:  May 2002
  • National Dean’s List
  • Mississippi Alliance for Minority Participation
  • ASU Honors Organization
  • ASU Ecology Club
  • National Council for Negro Women
  • ASU Housing Association, Resident Assistant
  • ASU Dean’s List Scholar
  • Who’s Who Among American Colleges & Universities
    email:  smithtonya@hotmail.com

 

ABSTRACT

The Effect of Waterless Hand Sanitizers
On Medically Significant Bacteria


 The hand sanitizers Purell, Softsoap, and Merry Melon claim to kill 99.9% of all illness-causing germs within 15 seconds.  The purpose of my research is to determine if these waterless sanitizers are capable of inhibiting or destroying the growth of medically significant bacteria.  The bacteria tested in this experiment were Staphylococcus aureus, Esherichia coli, Serratia marcescens, and Bacillus cereus.  Surprisingly, my results indicate that these hand sanitizers are not as effective as they claim to be.  Overall, Purell proved to be the best hand sanitizer that inhibited microbial growth; although, it did not show significant results to prove that it kills, 99.9% of all illness-causing germs.  Personally, I feel that instant hand sanitizers cannot take the place of old fashioned soap and water.