Application of datalogger in observing photosynthesis

Choi, Martin M. F.; Wong, Pui Shan; Yiu, Tak Pong; Case, Mark

doi:10.1021/ed079p980

Cited by 4 publications

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“…The use of an oxygen probe with immobilized GOx has also been employed. 13 An attempt to use classic blood-glucose test strips to introduce enzyme electrodes and modern biosensors has been made. 14 Another work describes using a commercial glucose meter to teach statistical error analysis.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Most of them employ classic macrosized glassy carbon or platinum electrodes with immobilized glucose oxidase (GOx) or additionally modified with carbon nanotubes, conducting polymers, and a ferricyanide/ferrocyanide redox mediator. , The measurement principle is based on the detection of H 2 O 2 produced by enzymatic oxidation of glucose. The use of an oxygen probe with immobilized GOx has also been employed . An attempt to use classic blood-glucose test strips to introduce enzyme electrodes and modern biosensors has been made .…”

Section: Introductionmentioning

confidence: 99%

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Indirect Amperometric Detection of Glucose in Simulated Urine Using Screen-Printed Electrodes

Huseinov,

Alvarez

2024

J. Chem. Educ.

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The measurement of glucose through electrochemical methods is a great example to illustrate the practical application of electrochemistry. Although many students enrolled in chemistry classes are familiar with the glucose meter, only a few have delved into the underlying principles governing its operation. This experiment aims to address this gap by introducing students to modern electrochemical measurements, showcasing the potential for analyzing minute sample quantities and reviewing fundamental concepts related to enzymatic catalysis and buffers. The experimental procedure described here involves the utilization of screen-printed gold electrodes for the amperometric detection of glucose in simulated urine. The glucose-containing sample is spiked with glucose oxidase, an enzyme that catalyzes the oxidation of glucose, generating hydrogen peroxide, which is subsequently detected through amperometric measurements. By constructing a calibration graph, students are able to determine the concentration of glucose in simulated urine. While primarily designed for introductory biochemistry laboratory sessions aimed at freshmen students, this experiment can be easily modified and adapted to suit more advanced courses.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Indirect Amperometric Detection of Glucose in Simulated Urine Using Screen-Printed Electrodes

Huseinov,

Alvarez

2024

J. Chem. Educ.

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“…A large body of research exists concerning activities in which computing devices are used in conjunction with measurement devices (probeware) to gather and display data in laboratory teaching exercises. Students may be required to use hand-held graphing data logger devices − specifically designed to display and analyze data collected from associated probeware, or alternately the probeware may be connected to a notebook or desktop computer equipped with the necessary software. − These activities have been termed microcomputer based laboratory (MBL) activities.…”

Section: Introductionmentioning

confidence: 99%

Student Perceptions of Chemistry Experiments with Different Technological Interfaces: A Comparative Study

2014

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Microcomputer based laboratory activities have been suggested to have a number of benefits in science education. However, their implementation produces mixed results, and student perception data have in the past yielded responses that are negative regarding the technology. This work presents a case study of three first year undergraduate chemistry experiments in which negative views of handheld graphic data logger devices were significantly alleviated by replacing them with notebook computers equipped with equivalent software. Widespread improvements in student perceptions of their laboratory experience were observed, prominently including reduced negativity concerning the equipment, an increased perception of understanding, an increased perception of simplicity, and more positive perceptions of overall laboratory experience. These improvements, which were not limited to perceptions directly concerning the technology specifically, suggest a broad range of substantial advantages is present in providing a suitable user interface.

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“…An O 2 sensor and a data logger are employed to monitor the evolution or consumption of O 2 in this experiment. In addition, readily available equipment, that is, mercury arc lamp, quartz container, stirrer, and computer, is used to conduct the laboratory work that can offer real-time study of the photocatalytic reactions . The experiments could be integrated into an upper-level inorganic, physical, or structural chemistry lesson with connection to nanotechnology.…”

mentioning

confidence: 99%

Nanosized TiO₂ for Photocatalytic Water Splitting Studied by Oxygen Sensor and Data Logger

Zhang¹,

Liu²,

Yuan³

et al. 2012

J. Chem. Educ.

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Photocatalytic water splitting by semiconductor photocatalysts has attracted considerable attention in the past few decades. In this experiment, nanosized titanium dioxide (nano-TiO 2 ) particles are used to photocatalytically split water, which is then monitored by an oxygen sensor. Sacrificial reagents such as organics (EDTA) and metal ions (Fe 3+ ) are also included in the solutions with powder nano-TiO 2 as photocatalyst to help elucidate the photocatalytic reactions. In solutions containing nano-TiO 2 and Fe 3+ , the quantity of dissolved oxygen increases, but the quantity of dissolved oxygen decreases upon addition of EDTA. This experiment provides a simple and convenient methodology to indirectly study the photocatalytic water-splitting process and to assess the effectiveness of scavenging toxic chemicals such as organics and metal ions in water. This work should provide valuable experience for undergraduate students in understanding the role of a photocatalyst in water splitting as well as methods for removing toxic substances in water. The proposed photocatalytic system in conjunction with an oxygen sensor and a data logger shows fast response time and good sensitivity for monitoring the photocatalytic reaction. It is more cost-effective and convenient as compared to other conventional methods.

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Application of datalogger in observing photosynthesis

Cited by 4 publications

References 0 publications

Indirect Amperometric Detection of Glucose in Simulated Urine Using Screen-Printed Electrodes

Indirect Amperometric Detection of Glucose in Simulated Urine Using Screen-Printed Electrodes

Student Perceptions of Chemistry Experiments with Different Technological Interfaces: A Comparative Study

Nanosized TiO₂ for Photocatalytic Water Splitting Studied by Oxygen Sensor and Data Logger

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Application of datalogger in observing photosynthesis

Cited by 4 publications

References 0 publications

Indirect Amperometric Detection of Glucose in Simulated Urine Using Screen-Printed Electrodes

Indirect Amperometric Detection of Glucose in Simulated Urine Using Screen-Printed Electrodes

Student Perceptions of Chemistry Experiments with Different Technological Interfaces: A Comparative Study

Nanosized TiO2 for Photocatalytic Water Splitting Studied by Oxygen Sensor and Data Logger

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Nanosized TiO₂ for Photocatalytic Water Splitting Studied by Oxygen Sensor and Data Logger