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25 results on '"Chen, Cheng-You"'

16. A High Performance Impedance-based Platform for Evaporation Rate Detection

Author

Yung-Sheng Lin, Wei-Lung Chou, Chen Cheng-You, Pee-Yew Lee, and Yu-Hsin Lin

Subjects
General Immunology and Microbiology, Sample (material), General Chemical Engineering, General Neuroscience, 010401 analytical chemistry, Evaporation rate, Evaporation, 02 engineering and technology, Models, Theoretical, 021001 nanoscience & nanotechnology, Chip, 01 natural sciences, General Biochemistry, Genetics and Molecular Biology, 0104 chemical sciences, Dielectric spectroscopy, Indium tin oxide, Engineering, Volume (thermodynamics), Electric Impedance, Hyaluronic Acid, Volatilization, 0210 nano-technology, Biological system, Electrical impedance
Abstract

This paper describes the method of a novel impedance-based platform for the detection of the evaporation rate. The model compound hyaluronic acid was employed here for demonstration purposes. Multiple evaporation tests on the model compound as a humectant with various concentrations in solutions were conducted for comparison purposes. A conventional weight loss approach is known as the most straightforward, but time-consuming, measurement technique for evaporation rate detection. Yet, a clear disadvantage is that a large volume of sample is required and multiple sample tests cannot be conducted at the same time. For the first time in literature, an electrical impedance sensing chip is successfully applied to a real-time evaporation investigation in a time sharing, continuous and automatic manner. Moreover, as little as 0.5 ml of test samples is required in this impedance-based apparatus, and a large impedance variation is demonstrated among various dilute solutions. The proposed high-sensitivity and fast-response impedance sensing system is found to outperform a conventional weight loss approach in terms of evaporation rate detection.

Published
2016

19. Genetic polymorphisms in APE1 Asp148Glu(rs3136820) as a modifier of the background levels of abasic sites in human leukocytes derived from breast cancer patients and controls

Author

Hsieh, Wei-Chung, primary, Lin, Che, additional, Chen, Dar-Ren, additional, Yu, Wen-Fa, additional, Chen, Guan-Jie, additional, Hu, Suh-Woan, additional, Liu, Chin-Chen, additional, Ge, Mao-Huei, additional, Ruan, Chang-Sin, additional, Chen, Cheng-You, additional, Lin, Chia-Hua, additional, and Lin, Po-Hsiung, additional

Published
2016
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25. Effects of dietary magnesium on the growth, carapace strength and tissue magnesium concentrations of soft-shelled turtle, Pelodiscus sinensis ( Wiegmann).

Author

Chen, Cheng‐You and Huang, Chen‐Huei

Subjects
*SOFT-shelled turtles, *PHYSIOLOGICAL effects of magnesium, *DIETARY supplements, *REPTILE growth, *MAGNESIUM in the body, *PHYSIOLOGY
Abstract

A feeding trial was conducted to evaluate the effects of dietary magnesium on the growth, carapace strength, tissue and serum Mg concentration of soft-shelled turtles, Pelodiscus sinensis ( Wiegmann). Juvenile soft-shelled turtles of approximate 5.4 g body weight were fed diets with seven levels of Mg (48, 206, 369, 670, 955, 1195 and 1500 mg Mg kg−1) for eight weeks. No significant difference ( P ≥ 0.05) was found in weight gain ( WG), feed conversion ratio or protein efficiency ratio among treatments. However, the WG of turtles continued to increase with increasing dietary Mg levels up to 670 mg kg−1, beyond which the WG levelled off. The plasma alkaline phosphatase activity and the muscle, bone Mg concentrations of the turtles increased with the increasing dietary Mg levels between 48 and 955 mg kg−1, beyond which the tissue Mg concentrations remained relatively constant. Furthermore, the carapace strengths of turtles fed with the control diet of 48 mg Mg kg−1 were significantly weaker ( P < 0.05) than that of turtles fed with diets containing higher Mg levels. Based on a broken-line modelling analysis, the required dietary Mg level for the optimal WG of juvenile soft-shelled turtles was estimated to be approximately 650 mg kg−1. By contrast, the required dietary Mg levels for turtles to reach the optimal muscle and bone Mg concentrations were 1050 and 1000 mg kg−1 respectively. The required dietary Mg level for maximal alkaline phosphatase activity was approximately 980 mg kg−1. [ABSTRACT FROM AUTHOR]

Published
2015
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