Search Results - "Chen, Richie L. C."

Redoxless Electrochemical Capacitance Spectroscopy for Investigating Surfactant Adsorption on Screen-Printed Carbon Electrodes by Cheng, Tzong-Jih, Hsiao, Hsien-Yi, Tsai, Pei-Chia, Chen, Richie L. C

“…Electrochemical impedance spectroscopy (EIS) is a sensitive analytical method for surface and bulk properties. Classical EIS and derived electrochemical…”
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A hand-held electronic tongue based on fluorometry for taste assessment of tea by Chang, Kuang-Hua, Chen, Richie L.C., Hsieh, Bo-Chuan, Chen, Po-Chung, Hsiao, Hsien-Yi, Nieh, Chi-Hua, Cheng, Tzong-Jih

“…A hand-held electronic tongue was developed for determining taste levels of astringency and umami in tea infusions. The sensing principles are based on…”
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Pencil lead microelectrode and the application on cell dielectrophoresis by Hsieh, Bo-Chuan, Cheng, Tzong-Jih, Shih, Syuan-He, Chen, Richie L.C.

“…A microelectrode was fabricated by electrochemical etching of a pencil lead (0.5mm in diameter) in 1.0M NaOH aqueous solution. The pencil lead was dipped into…”
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Hand-held Colorimetry Sensor Platform for Determining Salivary α-Amylase Activity and Its Applications for Stress Assessment by Hsiao, Hsien-Yi, Chen, Richie L C, Chou, Chih-Chi, Cheng, Tzong-Jih

“…This study develops a hand-held stress assessment meter with a chemically colorimetric strip for determining salivary α-amylase activity, using a 3,5…”
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Assays for serum cholinesterase activity by capillary electrophoresis and an amperometric flow injection choline biosensor by Hsieh, Bo-Chuan, Hsiao, Hsien-Yi, Cheng, Tzong-Jih, Chen, Richie L.C.

“…A capillary electrophoresis method and a durable choline biosensor were developed for measuring serum cholinesterase (EC 3.1.1.8) activity, a useful clinical…”
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Determination of Tannin in Green Tea Infusion by Flow-Injection Analysis Based on Quenching the Fluorescence of 3-Aminophthalate by Chen, Richie L. C, Lin, Chun-Hsun, Chung, Chien-Yu, Cheng, Tzong-Jih

“…A flow-injection analytical system was developed to determine tannin content in green tea infusions. The flow-injection system is based on measuring the…”
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An Electrochemical o -Phthalaldehyde Sensor Using a Modified Disposable Screen-Printed Electrode with Polyacrylate Hydrogel for Concentration Verification of Clinical Disinfectant by Chen, Richie L C, Hsieh, Bo-Chuan, Lin, Jia-Sin, Cheng, Tzong-Jih

“…The study proposes an -phthalaldehyde (OPA) sensor for rapid and reliable detection of OPA in healthcare disinfection practices, based on a hydrogel-modified…”
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Impedimetric sensing of the biodiesel contents in diesel fuels with a carbon paste electrode pair by Kung, Yi, Hsieh, Bo-Chuan, Cheng, Tzong-Jih, Huang, Chen-Kang, Chen, Richie L.C.

“…[Display omitted] . ► An electrochemical chamber with hydrophobic electrode pair was provided for measuring the impedance of oily substances. ► The first…”
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High-Speed Mass Measurement of Nanoparticle and Virus by Lin, Huan-Chang, Lin, Jung-Lee, Lin, Hsin-Hung, Tsai, Shiue-Wen, Yu, Alice L, Chen, Richie L. C, Chen, Chung-Hsuan

“…Until now, there have been no relatively easy methods to measure the mass and mass distributions of nanoparticles/viruses. In this work, we report the first…”
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Quantification of 5-aminolevulinic acid by CE using dynamic pH junction technique by Hsieh, Bo-Chuan, Chen, Richie L. C., Tsai, Tsuimin

“…An online dynamic pH junction preconcentration method was developed for quantification of 5‐aminolevulinic acid (ALA) by CE with the separation time less than…”
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Electrochemical β(1 → 3)- d-glucan biosensors fabricated by immobilization of enzymes with gold nanoparticles on platinum electrode by Bagal-Kestwal, Dipali, Kestwal, Rakesh Mohan, Hsieh, Bo-Chuan, Chen, Richie L.C., Cheng, Tzong-Jih, Chiang, Been-Huang

“…β(1 → 3)- d-Glucan sensors were fabricated using bi-enzyme and tri-enzyme immobilized systems with gold nanoparticles (GNPs) to increase sensitivity. The plant…”
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Determination of tea fermentation degree by a rapid micellar electrokinetic chromatography by Hsiao, Hsien-Yi, Chen, Richie L.C., Cheng, Tzong-Jih

“…A micellar electrokinetic capillary electrophoresis (MEKC) method was used to rapidly determine seven tea catechins, three xanthines, gallic acid, vitamin C,…”
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Localized Deposition of Chitosan as Matrix for Enzyme Immobilization by Chen, Po-Chung, Chen, Richie L. C., Cheng, Tzong-Jih, Wittstock, G.

“…A local electrodeposition method was developed for chitosan by exploiting a pH gradient between a macroscopic electrode (the support) and a much smaller…”
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Nitrocellulose/acrylic resin coated screen-printed carbon electrode to construct a capacitive immunosensor for anti-BSA by Tsai, Pei-Chia, Chen, Richie L.C., Hsieh, Bo-Chuan, Cheng, Tzong-Jih

“…The capacitive immunosensor, known for its label-free simplicity, has great potential for point-of-care diagnostics. However, the interaction between…”
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Label-free and reagentless capacitive aptasensor for thrombin by Chen, Hsin-Ju, Chen, Richie L.C., Hsieh, Bo-Chuan, Hsiao, Hsien-Yi, Kung, Yi, Hou, Yung-Te, Cheng, Tzong-Jih

“…This investigation develops a label-free and reagentless aptasensor, based on a capacitive transducer with simple face-to-face electrode pairs. The electrode…”
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Choline biosensor constructed with chitinous membrane from soldier crab and its application in measuring cholinesterase inhibitory activities by Hsieh, Bo-Chuan, Matsumoto, Kiyoshi, Cheng, Tzong-Jih, Yuu, Gyokurin, Chen, Richie L.C.

“…An amperometric flow-injection choline biosensor was assembled utilizing natural chitinous membrane as the supporting material for biocatalyst immobilization,…”
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Determination of o-phthalaldehyde for dose verification of the clinical disinfectant by fluorescent sequential injection analysis by Chen, Hung-Yu, Chen, Richie L. C., Hsieh, Bo-Chuan, Cheng, Tzong-Jih

“…A new automated, generic analytical approach for determining the clinical disinfectant o -phthalaldehyde (OPA) is reported in this study. The proposed…”
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Self‐Healing Hydrogel Containing Decellularized Liver Matrix and Endothelial Cell‐Covered Hepatocyte Spheroids for Rescue of Injured Hepatocytes by Chou, Xin‐Yu, Cheng, Kai‐Yi, Yin, Wei‐Rong, Cheng, Tzong‐Jih, Chen, Richie L. C., Hsu, Shan‐hui, Hou, Yung‐Te

“…Liver fibrosis occurs in many chronic liver diseases, while severe fibrosis can lead to liver failure. A chitosan‐phenol based self‐healing hydrogel (CP)…”
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Judgment of pure fermented soy sauce by fluorescence resonance energy transfer of OPA-tryptophan adduct by Gao, You-Syuan, Hsieh, Bo-Chuan, Cheng, Tzong-Jih, Chen, Richie L.C.

“…•A rapid, sensitive and selective tryptophan detecting method based on FRET and FIA.•A data subtraction protocol proposed to eliminate the interference.•The…”
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Real-time assay of immobilized tannase with a stopped-flow conductometric device by Chang, Fu-Shiang, Chen, Po-Chung, Chen, Richie L.C., Lu, Fu-Ming, Cheng, Tzong-Jih

“…A stopped-flow manifold was developed to assay and characterize immobilized tannase (EC 3.1.1.20). The immobilized enzyme reactor was inserted within the…”
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