Surface bio-magnetism on bacterial cells adhesion and surface proteins secretion

Chua, Loh-You; Yeo, Song Huat

doi:10.1016/j.colsurfb.2004.10.004

Cited by 11 publications

(6 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Yeo et al reported a much greater adhesion of Pseudomonas fluorescens on spin down (south polarity) than on the spin up (north polarity) and non‐polarized Co‐γ‐Fe 2 O 3 coating on polyethylene terepthalate (PET) substrates . A similar retarding effect of spin up direction was observed against biofilm formation and protein secretion by Bacillus licheniformis elucidating how a change in surface free energy brought about by perpendicular polarization of magnetically aligned media can affect bacterial adhesion . Recent work from our group has also established that moderate intensity static magnetic field (SMF) of 100 mT can cause a synergistic decrease in viable bacterial numbers and an exposure duration (upto 4 h) dependent reduction in the adhesion as observed in E.coli and S.epidermidis on non‐polarized magnetic hydroxyapatite–magnetite (HA‐Fe 3 O 4 ) composites.…”

Section: Strategies Against Prosthetic Infectionmentioning

confidence: 90%

“…99 A similar retarding effect of spin up direction was observed against biofilm formation and protein secretion by Bacillus licheniformis elucidating how a change in surface free energy brought about by perpendicular polarization of magnetically aligned media can affect bacterial adhesion. 100 Recent work from our group has also established that moderate intensity static magnetic field (SMF) of 100 mT can cause a synergistic decrease in viable bacterial numbers and an exposure duration (upto 4 h) dependent reduction in the adhesion as observed in E.coli and S.epidermidis on nonpolarized magnetic hydroxyapatite-magnetite (HA-Fe 3 O 4 ) composites. Interestingly, similar substrates promoted the osteogenic differentiation of human mesenchymal stem cells (hMSCs), aided by intermittent exposure (30 min/48 h) to SMF of 100 mT.…”

Section: Biophysical Stimulation Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Engineered biomaterial and biophysical stimulation as combinatorial strategies to address prosthetic infection by pathogenic bacteria

Boda

Basu

2016

J. Biomed. Mater. Res.

View full text Add to dashboard Cite

A plethora of antimicrobial strategies are being developed to address prosthetic infection. The currently available methods for implant infection treatment include the use of antibiotics and revision surgery. Among the bacterial strains, Staphylococcus species pose significant challenges particularly, with regard to hospital acquired infections. In order to combat such life threatening infectious diseases, researchers have developed implantable biomaterials incorporating nanoparticles, antimicrobial reinforcements, surface coatings, slippery/non-adhesive and contact killing surfaces. This review discusses a few of the biomaterial and biophysical antimicrobial strategies, which are in the developmental stage and actively being pursued by several research groups. The clinical efficacy of biophysical stimulation methods such as ultrasound, electric and magnetic field treatments against prosthetic infection depends critically on the stimulation protocol and parameters of the treatment modality. A common thread among the three biophysical stimulation methods is the mechanism of bactericidal action, which is centered on biophysical rupture of bacterial membranes, the generation of reactive oxygen species (ROS) and bacterial membrane depolarization evoked by the interference of essential ion-transport. Although the extent of antimicrobial effect, normally achieved through biophysical stimulation protocol is insufficient to warrant therapeutic application, a combination of antibiotic/ROS inducing agents and biophysical stimulation methods can elicit a clinically relevant reduction in viable bacterial numbers. In this review, we present a detailed account of both the biomaterial and biophysical approaches for achieving maximum bacterial inactivation. Summarizing, the biophysical stimulation methods in a combinatorial manner with material based strategies can be a more potent solution to control bacterial infections. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 2174-2190, 2017.

show abstract

Section: Strategies Against Prosthetic Infectionmentioning

confidence: 90%

Section: Biophysical Stimulation Methodsmentioning

confidence: 99%

Engineered biomaterial and biophysical stimulation as combinatorial strategies to address prosthetic infection by pathogenic bacteria

Boda

Basu

2016

J. Biomed. Mater. Res.

View full text Add to dashboard Cite

show abstract

“…Studies have shown that through vertically polarized magnetic media, surface biomagnetism can affect bacterial adhesion and protein synthesis, thereby achieving the purpose of improving bacterial activity (Chua and Yeo, 2005). After 15 min of exposure to EMF the specific growth rate of Rhodobacter sphaeroides grown under anaerobic conditions increased by 1.2 times (Soghomonyan et al, 2016).…”

Section: Biological Mechanism Of Electromagnetic Field On Anammox Gra...mentioning

confidence: 99%

Low-intensity electromagnetic field as a new engineering oriented bioaugmentation strategy for anammox granules

Wang

Liu

Zhou

et al. 2022

Front. Environ. Sci.

View full text Add to dashboard Cite

Improving the relative abundance of bacteria and their activity is still the basis for the efficient operation of anammox process. Here, biomagnetic effect was used to promote anammox granules. Batch test results show that the application of an electromagnetic field (EMF) with a strength of 0.09 μT increased the nitrogen removal performance of anammox by 32.44% while higher strength EMF of 0.20 and 0.25 μT inhibited the activity of anammox bacteria. Long-term experiment indicated that the addition of EMF with a strength of 0.09 μT greatly improved nitrogen removal performance of the granular sludge, especially the total nitrogen removal performance increased by 15.3%. After 120 days of reactor operation, the nitrogen loading rate was increased to 6.4 kg N/m3/d, and the total nitrogen removal rate of the reactors with and without EMF addition reached 4.92 kg N/m3/d and 4.25 kg N/m3/d, respectively. Throughout the experiment, the removal rate of NH4+-N and NO2−-N of anammox reactor with 0.09 μT EMT addition was always higher than that without EMF addition. The high-throughput sequencing analysis showed that the proportion of Candidatus Brocadia in reactors with and without EMF addition were 21.3% and 15.8%, respectively. The application of EMF with an intensity of 0.09 μT increased the relative abundance of the main anammox bacteria. 70 kos were enriched under EMF conditions, including ko00780 (Biotin metabolism), ko00540 (Lipopolysaccharide biosynthesis), ko00590 (Arachidonic acid metabolism). 51 kos like ko03030 (DNA replication) decreased after EMF addition. This study demonstrates the feasibility of EMF to promote anammox and expands the application of EMF in wastewater treatment.

show abstract

“…Under different spin conditions, a change on the biofilm formation, growth, and protein synthesis was observed (Chua and Yeo, 2005).…”

Section: Eps Eps and Viable Cells Were Stained Inmentioning

confidence: 99%

Biological Fixed Film Systems

Lin¹,

McSwain²,

Sharma³

et al. 2006

Water Environment Research

View full text Add to dashboard Cite

Surface bio-magnetism on bacterial cells adhesion and surface proteins secretion

Cited by 11 publications

References 14 publications

Engineered biomaterial and biophysical stimulation as combinatorial strategies to address prosthetic infection by pathogenic bacteria

Engineered biomaterial and biophysical stimulation as combinatorial strategies to address prosthetic infection by pathogenic bacteria

Low-intensity electromagnetic field as a new engineering oriented bioaugmentation strategy for anammox granules

Biological Fixed Film Systems

Contact Info

Product

Resources

About