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Your search keyword '"Lin, Yao-Tung"' showing total 157 results
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157 results on '"Lin, Yao-Tung"'

22. Fabrication of Ternary Nanoparticles for Catalytic Ozonation to Treat Parabens: Mechanisms, Efficiency, and Effects on Ceratophyllum demersum L. and Eker Leiomyoma Tumor-3 Cells

Author

Pattanateeradetch, Apiladda, primary, Sakulthaew, Chainarong, additional, Angkaew, Athaphon, additional, Sutjarit, Samak, additional, Poompoung, Thapanee, additional, Lin, Yao-Tung, additional, Harris, Clifford E., additional, Comfort, Steve, additional, and Chokejaroenrat, Chanat, additional

Published
2022
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24. Novel biomass-derived porous-graphitic carbon coated iron oxide nanocomposite as an efficient electrocatalyst for the sensitive detection of rutin (vitamin P) in food and environmental samples

Author

Elancheziyan, Mari, primary, Ganesan, Sivarasan, additional, Theyagarajan, K., additional, Duraisamy, Murugesan, additional, Thenmozhi, Kathavarayan, additional, Weng, Chih-Huang, additional, Lin, Yao-Tung, additional, and Ponnusamy, Vinoth Kumar, additional

Published
2022
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39. A biocide-free mineral oil nanoemulsion exhibiting strong bactericidal activity against Mycobacterium immunogenum and Pseudomonas aeruginosa

Author

Tzu-Wen Chen, Lin Yao-Tung, Shu-Chi Chang, and Lin Shang-Jie

Subjects
Biocide, biology, Pseudomonas aeruginosa, Chemistry, Gram-positive bacteria, Pathogenic bacteria, medicine.disease_cause, Antimicrobial, biology.organism_classification, Microbiology, Biomaterials, medicine, Mycobacterium immunogenum, Mineral oil, Waste Management and Disposal, Bacteria, medicine.drug
Abstract

Mycobacterium immunogenum and Pseudomonas aeruginosa currently present one of the highest health concerns in metalworking processes. The former is a Gram positive bacterium strongly associated with hypersensitivity pneumonitis outbreaks and the latter is a Gram negative famous for its opportunistic pathogenesis and frequent isolation from in-service metalworking fluids (MWFs). Thus far, biocide addition is the only microbial control measure in MWFs, but it often fails on preventing mycobacteria proliferation. This study aimed to formulate an inherently bacteria-resistant MWF with industrial grade chemicals. Using a phase inversion temperature method, we created a low-cost mineral oil nanoemulsion (MONE) which has extraordinarily high bactericidal activity against M. immunogenum and P. aeruginosa and has the smallest oil droplet size ever reported in the literature. A short-term biocidal test showed that a 5% dilution of MONE (5% MONE) exhibited high emulsion stability and strong bactericidal effects. The first-order biocidal rate constants of 5% MONE are higher than 72% of the 32 different test combinations of commercially available MWFs amended with two industrial biocides, KATHON™ LXE and Preventol® CMK-NA. A further longer term test on an aged 5% MONE showed it achieved 100% elimination of all tested bacteria either in pure cultures or a mixed culture up to 28 days. The biocidal kinetics of MONE seemed to follow a new equation, ln(N/N0) = −k0’(exp(n’C))t, much better than the currently most widely accepted Chick–Watson law equation. Among the reported antimicrobial nanomaterials and industrial biocides, this nanoemulsion formulation may offer a low-cost solution in sustainable utilization of mineral oil in MWF applications and a new research perspective on biodeterioration prevention of MWFs.

Published
2012

41. Assessment of potassium speciation in soil using traditional single leaching and modified sequential extraction processes.

Author

Poonpakdee, Chakkrit, Tzeng, Jing-Hua, Weng, Chih-Huang, and Lin, Yao-Tung

Subjects
POTASSIUM, SOIL leaching, TRACE elements, GENETIC speciation
Abstract

Purpose: The bioavailability of potassium (K) depends on its speciation distribution in the soil. Different methods are commonly used to estimate K speciation including traditional single leaching (TSL) and sequential extraction process (SEP). However, K speciation is largely affected by soil pretreatment methods. The effects of both TSL and SEP soil pretreatment methods were evaluated. Materials and methods: The TSL method classifies K speciation content based on bioavailability, while the SEP classifies the metal speciation based on the effects of environmental conditions. These two methods, together with a modified sequential single leaching (SSL) scheme, were used to evaluate five types of soil including soil without potassium fertilization, soil with long-term K fertilization, alkaline soil, red soil, and forest soil. The soil samples were gathered randomly at depths varying up to 30 cm before being dried in air at room temperature. The samples were then ground and mixed before passing through a sieve (10 mesh or 100 mesh) in order to perform K speciation analysis via the modified SSL technique, the TSL method, and the four schemes of SEP. Results and discussion: Soil pretreatment influenced K speciation, with higher concentration in soil samples sieved through 100 mesh than through 10 mesh. In alkaline soil, potassium was observed to be associated with carbonate. For the various SEP schemes, K speciation was found to be greatest in the residual fraction, with only 3% observed in the carbonate, exchangeable, metal organic complex, or amorphous hydroxides of Fe or Mn. After following the first two steps of the SEP schemes, the available K was similar to that of the TSL method. Distribution of non-exchangeable K using the TSL method was comparable with the five combined SEP extraction steps which were all affected by environmental conditions. Conclusions: Pretreatment affected K speciation distribution and total amount of metal in the soil. The 100 mesh sieve was more effective in estimating K soil speciation. The SEP method was acceptable for estimating K speciation, with the Krishnamurti et al. (Analyst 120:659-665, 1995) scheme as a useful appraisal of K bioavailability. Combination analyses using both TSL and SEP methods are useful techniques to enable a better understanding of K speciation transformation in soil. [ABSTRACT FROM AUTHOR]

Published
2018
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