Navigation Links
Bacterial wipes research study

(Edmonton) If you have time to quickly swipe your pager or cell phone three times, that would be your best bet to get rid of most of the bacteria. And a simple tissue moistened with saline would do the trick. But if you only have time for a single swipe of a 'dirty' phone you'd be better off reaching for a disinfectant wipe.

Those are the highlights of a recently published research study that appeared online in PubMed, with the discoveries having been made by a team of researchers in the Faculty of Medicine & Dentistry at the University of Alberta.

"It was the mechanical removal, not the actual act of the disinfectant that was key," says Dr. Sarah Forgie, a Pediatric Infectious Diseases Specialist in the Department of Pediatrics.

Medical student Andrea Berendt, who was working with Forgie at the time, liked the idea so Berendt came up with the protocol and conducted all the experiments in a lab over two months. The duo worked with Dr. Robert Rennie, a Professor in Laboratory Medicine and Pathology, Pediatric Epidemiologist Donald Spady and technologist LeeAnn Turnbull.

Three types of bacteria Staphylococcus aureus (MRSA), Enterococci (VRE) and Pseudomonas aeruginosa were each prepared in a mixture and streaked onto sterile plastic Petri dishes, then allowed to dry. Numerous bacteria contaminated plates were prepared throughout the summer all in the same manner so each type of bacteria could be tested with five different types of wipes and then again with varying amounts of swipes one swipe, three swipes and five swipes.

Each 10 cm diameter plate was wiped for one second and in a manner that the entire surface was swiped, using a flat baton. The plates were then allowed to dry for 10 minutes. Afterwards, bacteria samples were put onto special lab plates, incubated for at least 24 hours at 35C and then the bacteria colonies were counted.

Research results demonstrated that bacterial counts dropped significantly the more often a plate was swiped regardless of the type of wipe used. Swiping the contaminated plates 3x decreased the bacterial load by 88% on average, compared to just swiping a plate once. Swiping a plate 5x vs. 3x didn't result in an additionally significant decrease in bacteria. And a simple saline wipe appeared to be just as effective as disinfectant wipes when the plates were swiped 3x or more. However, if the plate was swiped just once disinfectant wipes were better at reducing bacteria than simple saline wipes.


Contact: Raquel Maurier
University of Alberta Faculty of Medicine & Dentistry

Related biology news :

1. Gene against bacterial attack unravelled
2. Predatory bacterial swarm uses rippling motion to reach prey
3. Nature study demonstrates that bacterial clotting depends on clustering
4. Shifts in soil bacterial populations linked to wetland restoration success
5. Caltech researchers get first 3-D glimpse of bacterial cell-wall architecture
6. Scientists present moving theory behind bacterial decision-making
7. Scientists build roach motel for nasty bugs of the bacterial variety
8. Bacterial biofilms as fossil makers
9. Winter brings flu, summer brings bacterial infections
10. Computation and genomics data drive bacterial research into new golden age
11. New research lights up chronic bacterial infection inside bone
Post Your Comments:
(Date:9/30/2015)... , Sept. 30, 2015  With nearly 300,000 Americans ... of new SCIs estimated to reach 12,500 annually, the ... California Resource Services for Independent Living (SCRS-IL) is ... California opening doors to independence ... programs and services, notably assistive technology services and education. ...
(Date:9/29/2015)... 29, 2015 News facts: ... also saving energy , Minimized design shrinks PC ... Active Mode and embedded Fujitsu PalmSecure authentication enable enterprises ... Fujitsu today shows that good things come in small ... to its enterprise desktop and mobile portfolio. Featuring workplace ...
(Date:9/28/2015)... YORK , Sept. 28, 2015  The ... respiration rate and body temperature, is an essential ... can be indicators of deterioration in a patient,s ... hospital, vital signs are typically taken during routine ... hours. If a patient deteriorates between these observation ...
Breaking Biology News(10 mins):
(Date:10/12/2015)... This report covers the global cell expansion ... applications, end-user markets and geographic segmentation. Forecasts are provided ... cell expansion market generated revenue of roughly $8.5 billion ... $9.7 billion in 2015 and $22.0 billion by 2020, ... from 2015 to 2020. This report provides: ...
(Date:10/12/2015)... Oct. 12, 2015  Patara Pharma, a clinical-stage ... inflammatory diseases and conditions, today announced the closing ... financing. Concurrent with the close of its sale ... Loan and Security Agreement with Silicon Valley Bank ... million. Patara will use the funds from the ...
(Date:10/12/2015)... ... October 12, 2015 , ... NeuMedics Inc., is a specialty biopharmaceutical company focused ... safely and chronically be administered as an eye drop, announced today it has been ... Clinic and taking place October 25th to October 28th at The Cleveland Clinic, Cleveland, ...
(Date:10/9/2015)... ANNAPOLIS, Md. , Oct. 9, 2015 ... entered into the Congressional Record her statement recognizing the ... celebrated October 11-17. IPAW is sponsored by the ... companies, and is designed to:   , Raise ... contributions of plasma donors in saving and improving lives ...
Breaking Biology Technology: