Oct 28, 2015

An introduction to antibiotic-free techniques to eliminate Staphylococcus aureus from blood

BioRxiv : the Preprint Server for Biology
Angelo Gaitas, Gwangseong Kim


Here, we describe the implementation of three techniques for capturing and killing Staphylococcus aureus in blood in vitro inside a medical tube. The first technique involves capturing and removing pathogens using antibodies that are coated, via a simple chemical process, on the inner walls of a modified medical tube (tube capturing technique). In the second technique, a photosensitizer-antibody conjugate adheres to the pathogens while in circulation. When blood flows through the same kind of tube, the conjugate is activated by near-infrared (NIR) light to kill pathogens (photodynamic therapy technique). For the third technique, pathogens are exposed to light in the ultraviolet (UV) range while circulating through a similar tube (UV technique), which kills the pathogens. We spiked blood with S. aureus, starting with about 107 CFU/mL and ending at 108 CFU/mL after 5 hours. While the spiked bacteria rapidly grew in nutrition-rich whole blood, each of the three techniques were able to independently remove between 61% and 84% more S. aureus in the experimental blood sample compared to the controls groups. When combined, these techniques demonstrated a removal rate between 87% and 92%.

  • References
  • Citations


  • We're still populating references for this paper, please check back later.
  • References
  • Citations


  • This paper may not have been cited yet.

Mentioned in this Paper

Whole Blood
Thylacodes aureus
Blood Flow
Diagnostic Techniques, Surgical
Styrax aureus
Whole Blood Specimen
antibody conjugate
Packera aurea
Blood Circulation

About this Paper

Related Feeds

BioRxiv & MedRxiv Preprints

BioRxiv and MedRxiv are the preprint servers for biology and health sciences respectively, operated by Cold Spring Harbor Laboratory. Here are the latest preprint articles (which are not peer-reviewed) from BioRxiv and MedRxiv.