Mechanisms of microbial-based iron reduction of clay minerals: Current understanding and latest developments

Yong，Shih Nee1; Lim，Steven2,3; Ho，Chun Loong4; Chieng，Sylvia5; Kuan，Seng How1,3

2022-10-01

10.1016/j.clay.2022.106653

APPLIED CLAY SCIENCE   Impact Factor & Quartile

0169-1317

1872-9053

The ability of microorganisms to reduce iron in clay minerals has been well demonstrated by literature up to now. However, the detailed interaction mechanisms between minerals surface and responsible sites of bacterial appendages remains unclear. The work delves deep into the mechanisms involved in iron reduction from clay minerals, illuminating forces at play such as electrostatic forces and hydrophobic interactions, extracellular polymeric substances (EPS) and chelating effect of EPS, among others. This work also succinctly synthesize the factors affecting the adhesion of bacteria onto clay surface, as well as the effects of the interaction on the physico-chemical properties of clay minerals and electron transfer mechanisms between microorganisms and minerals. Knowledge gaps in current understanding are identified while future perspectives to bridge the gaps are also outlined including the use of state-of-the-art analysis techniques such as Time-of-flight secondary ion mass spectrometry (ToF-SIMS), analytical cryogenic scanning transmission electron microscopy and electron energy-loss spectroscopy (cryo-STEM-EELS) to visualise information at the molecular and nanometer scale.

Bacterial adhesion Clay minerals Interaction mechanisms Iron reduction

SCI ; EI

English

Others

Universiti Tunku Abdul Rahman[IPSR/RMC/UTARRF/2019-C2/K04];

Chemistry ; Materials Science ; Mineralogy

Chemistry, Physical ; Materials Science, Multidisciplinary ; Mineralogy

WOS:000860623300007

ELSEVIER

20223112474122

Adhesion ; Bacteria ; Chelation ; Clay minerals ; Electron energy levels ; Electron energy loss spectroscopy ; Electron scattering ; Electron transitions ; Energy dissipation ; High resolution transmission electron microscopy ; Hydrophobicity ; Iron ; Secondary ion mass spectrometry

Minerals:482.2 ; Energy Losses (industrial and residential):525.4 ; Iron:545.1 ; Optical Devices and Systems:741.3 ; Chemical Reactions:802.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

GEOSCIENCES

2-s2.0-85135198916

Scopus

1.Department of Mechanical and Material Engineering,Lee Kong Chian Faculty of Engineering and Science,Universiti Tunku Abdul Rahman,Kajang,Selangor,43000,Malaysia
2.Department of Chemical Engineering,Lee Kong Chian Faculty of Engineering and Science,Universiti Tunku Abdul Rahman,Kajang,Selangor,43000,Malaysia
3.Centre for Photonics and Advanced Materials Research,Universiti Tunku Abdul Rahman,Malaysia
4.Department of Biomedical Engineering,Southern University of Science and Technology,Shenzhen,Nanshan District,China
5.Department of Biological Sciences and Biotechnology,Faculty of Science and Technology,Universiti Kebangsaan Malaysia,Bangi,Selangor,43600,Malaysia

Yong，Shih Nee,Lim，Steven,Ho，Chun Loong,et al. Mechanisms of microbial-based iron reduction of clay minerals: Current understanding and latest developments[J]. APPLIED CLAY SCIENCE,2022,228.

Yong，Shih Nee,Lim，Steven,Ho，Chun Loong,Chieng，Sylvia,&Kuan，Seng How.(2022).Mechanisms of microbial-based iron reduction of clay minerals: Current understanding and latest developments.APPLIED CLAY SCIENCE,228.

Yong，Shih Nee,et al."Mechanisms of microbial-based iron reduction of clay minerals: Current understanding and latest developments".APPLIED CLAY SCIENCE 228(2022).