Studies on the adsorption properties of Korean kaolin IV the adsorption of bacteria by activated halloysiste

Chung, Kyoung-Jae; Rhee, Gye-Ju

doi:10.1007/bf02857745

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…Fully calcined kaolin, which demonstrated the best performance in the kaolinite group, was mostly amorphous, due to the calcination process that leads to a substantial loss of crystalline structure in kaolinite (Fernandez et al 2011;Unuabonah et al 2018). Previously, a positive impact of calcination was reported for attachment of Gram-positive but not Gram-negative bacteria (Chung and Rhee 1987). Interestingly, SiO 2 in the best performing diatomaceous earth product was also presented in amorphous and not crystalline form.…”

Section: Discussionmentioning

confidence: 95%

Efficient removal of bacteria from aqueous media with kaolinite and diatomaceous earth products

Johnson

Brineman

Schultze

et al. 2020

Journal of Applied Microbiology

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Aims: To understand the relationships between physical and chemical parameters of kaolinite and diatomaceous earth, and their capacities to remove bacteria from aqueous media. To determine the optimal aqueous media parameters for use of these products in water disinfection processes. Methods and Results: Seven kaolinite and three diatomaceous earth products were evaluated. Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Bacillus megaterium were used as proxy for bacterial pathogens. Fully calcined kaolin and amorphous diatomaceous earth demonstrated the highest extent and consistency in removing all the bacteria. The removal depended on ionic strength and pH of aqueous media with 100 mmol l À1 pH 5 potassium hydrogen phthalate buffer revealing the highest (2 log per gram) extent of the removal. Al 3+ cations enhanced sorption up to 4 log per gram. Conclusions: Calcined kaolin and amorphous diatomaceous earth are excellent sorbents for bacteria. Significance and Impact of the Study: Fully calcined kaolin and amorphous diatomaceous earth are perspective tools for wastewater and water disinfection against waterborne bacterial pathogens.

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Section: Discussionmentioning

confidence: 95%

Efficient removal of bacteria from aqueous media with kaolinite and diatomaceous earth products

Johnson

Brineman

Schultze

et al. 2020

Journal of Applied Microbiology

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“…119 HNTs showed a strong adsorption capacity for pathogenic S. aureus and a slightly weaker capacity for E. coli. 120 Quaternized HNTs possessed higher porosity, surface area, and abundant surface amide groups, which made them suitable for the enrichment of bioactive molecules such as heparin from pig intestinal mucosa. 121 HNT-chitosan composite exhibited excellent mucosal adhesion due to the increased porosity and surface area endowed by HNTs.…”

Section: Gastrointestinal Disease Treatmentmentioning

confidence: 99%

“…Comparing the adsorption of diphtheria toxin by several clays, HNTs displayed superior adsorption properties than kaolin . HNTs showed a strong adsorption capacity for pathogenic S. aureus and a slightly weaker capacity for E. coli . Quaternized HNTs possessed higher porosity, surface area, and abundant surface amide groups, which made them suitable for the enrichment of bioactive molecules such as heparin from pig intestinal mucosa .…”

Section: Biomedical Applicationsmentioning

confidence: 99%

The Horizons of Medical Mineralogy: Structure-Bioactivity Relationship and Biomedical Applications of Halloysite Nanoclay

Feng,

Chen,

et al. 2024

ACS Nano

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Medical mineralogy explores the interactions between natural minerals and living organisms such as cells, tissues, and organs and develops therapeutic and diagnostic applications in drug delivery, medical devices, and healthcare materials. Many minerals (especially clays) have been recognized for pharmacological activities and therapeutic potential. Halloysite clay (Chinese medicine name: Chishizhi), manifested as onedimensional aluminum silicate nanotubes (halloysite nanotubes, HNTs), has gained applications in hemostasis, wound repair, gastrointestinal diseases, tissue engineering, detection and sensing, cosmetics, and daily chemicals formulations. Various biomedical applications of HNTs are derived from hollow tubular structures, high mechanical strength, good biocompatibility, bioactivity, and unique surface characteristics. This natural nanomaterial is safe, abundantly available, and may be processed with environmentally safe green chemistry methods. This review describes the structure and physicochemical properties of HNTs relative to bioactivity. We discuss surface area, porosity and surface defects, hydrophilicity, heterogeneity and charge of external and internal surfaces, as well as biosafety. The paper provides comprehensive guidance for the development of this tubule nanoclay and its advanced biomedical applications for clinical diagnosis and therapy.

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Influence of clay minerals on the Bacillus halophilus Y38 activity under anaerobic condition

Zhou

Chen

Yao

et al. 2010

Applied Clay Science

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Studies on the adsorption properties of Korean kaolin IV the adsorption of bacteria by activated halloysiste

Cited by 3 publications

References 10 publications

Efficient removal of bacteria from aqueous media with kaolinite and diatomaceous earth products

Efficient removal of bacteria from aqueous media with kaolinite and diatomaceous earth products

The Horizons of Medical Mineralogy: Structure-Bioactivity Relationship and Biomedical Applications of Halloysite Nanoclay

Influence of clay minerals on the Bacillus halophilus Y38 activity under anaerobic condition

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