/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22De%20Leon%2C%20Kristine%20Jane%20P.%22&sort_by=relevance&format=rss 3 0 50 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=365 By De Leon, Kristine Jane P. .
Bayombong: Nueva Vizcaya State University, 2023 .
xiii, 119 leaves : , A paper-based microfluidic bioanalytical tool was developed and evaluated for its performance and effectiveness as a tool in science teaching. This innovative device is engineered to detect Ochratoxin A (OTA) in food and food sources by leveraging a colorimetric signal generated through enzymatic redox reactions within an integrated assay system. During its development, utmost consideration was paid in optimizing critical parameters influencing functionality and operation, including the fine-tuning of printing and detection mechanisms. In performance evaluations, the device exhibited a remarkable ability to detect OTA in whole wheat grain samples, achieving a limit of detection (LOD) as low as 512.30 ppb. Further investigation of the developed device confirmed its selectivity for OTA even in the presence of other mycotoxins. It demonstrated a high sensitivity to small changes in concentration, consistently yielding precise signal generation and highly accurate results. These attributes make the device a promising tool for commercial applications, particularly in the detection of OTA in animal food products. The performance and effectiveness of the tool in science teaching was evaluated through a post-activity survey administered to selected participants who engaged in a laboratory exercise employing the developed device. The activity was designed to introduce the concept of chemical analysis, aligning with the principles of Analytical Chemistry. It served as a culmination of the students comprehension of chemistry, specifically focusing on topics such as stoichiometry, dilution, and redox reactions. Each respondent completed a questionnaire structured around four key dimensions of the teaching and learning process: goals and objectives, content, motivation and participation, and organization and structure. The survey findings revealed that the majority of students regarded the device very highly effective in its performance as a tool in science teaching. Their firsthand experience on the use of the device not only piqued their interest but also empowered them to actively engage in discussions and hand-on aspects of the learning process. | Thesis (Master of Education in Science Education - General Science) 28 cm..

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[Bayombong, Nueva Vizcaya] : [Nueva Vizcaya State University], 2026 .
68 leaves : , Includes bibliographical references. 33 cm. +.

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=7357 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=7360 By De Leon, Kristine Jane P..
[Bayombong, Nueva Vizcaya] : [Nueva Vizcaya State University], 2026 .
52 leaves : , Includes bibliographical references. 33 cm. +.

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