Výsledky vyhledávání - "Ponnusamy Nandhakumar"

Dicarboxylate-containing and fully substituted ferrocene with rapid dissolvability, high solubility, good stability, and moderate formal potential for mediated electrochemical detection

Autor: Woohyeong Lee, Aman Bhatia, Ponnusamy Nandhakumar, Gyeongho Kim, Jung Min Joo, Haesik Yang

Publikováno v: Journal of Materials Chemistry B. 11:2258-2265

A dicarboxylate-containing and fully substituted ferrocene compound exhibits rapid dissolvability, high solubility, good stability, and moderate along with its high electron-mediation rate, and it was applied to mediated glucose detection.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1a0157c69b0da871dd98c44d81ad7c14
https://doi.org/10.1039/d2tb02380f

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Insulin detection in diabetes mellitus: challenges and new prospects

Autor: Eva Vargas, Ponnusamy Nandhakumar, Shichao Ding, Tamoghna Saha, Joseph Wang

Publikováno v: Nature reviews. Endocrinology, vol 19, iss 8

Tremendous progress has been made towards achieving tight glycaemic control in individuals with diabetes mellitus through the use of frequent or continuous glucose measurements. However, in patients who require insulin, accurate dosing must consider

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ec07ad69bdbf08fef2f85f291d92295
https://doi.org/10.1038/s41574-023-00842-3

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Wash-Free, Sandwich-Type Protein Detection Using Direct Electron Transfer and Catalytic Signal Amplification of Multiple Redox Labels

Autor: Gyeongho Kim, Hyejin Cho, Ponnusamy Nandhakumar, Jin Kyoon Park, Kwang-Sun Kim, Haesik Yang

Publikováno v: Analytical Chemistry. 94:2163-2171

Direct electron transfer (DET) between a redox label and an electrode has been used for sensitive and selective sandwich-type detection without a wash step. However, applying DET is still highly challenging in protein detection, and a single redox la

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::475e8c0c79151d1ec18b43a0c29ffe71
https://doi.org/10.1021/acs.analchem.1c04615

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Using Cell Membranes as Recognition Layers to Construct Ultrasensitive and Selective Bioelectronic Affinity Sensors

Autor: Eva Vargas, Fangyu Zhang, Amira Ben Hassine, Victor Ruiz-Valdepeñas Montiel, Rodolfo Mundaca-Uribe, Ponnusamy Nandhakumar, Putian He, Zhongyuan Guo, Zhidong Zhou, Ronnie H. Fang, Weiwei Gao, Liangfang Zhang, Joseph Wang

Publikováno v: Journal of the American Chemical Society. 144(38)

Conventional sandwich immunosensors rely on antibody recognition layers to selectively capture and detect target antigen analytes. However, the fabrication of these traditional affinity sensors is typically associated with lengthy and multistep surfa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8110eebcf69d5372d405429d8bfa455
https://pubmed.ncbi.nlm.nih.gov/36112651

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Di(Thioether Sulfonate)-Substituted Quinolinedione as a Rapidly Dissoluble and Stable Electron Mediator and Its Application in Sensitive Biosensors

Autor: Young Ho Yoon, Sang Wook Nam, Gyeongho Kim, Aman Bhatia, Woohyeong Lee, Haesik Yang, Nam-Sihk Lee, Jung Min Joo, Jia Seo, Ponnusamy Nandhakumar

Publikováno v: Advanced healthcare materials. 11(2)

The commonly required properties of diffusive electron mediators for point-of-care testing are rapid dissolubility, high stability, and moderate formal potential in aqueous solutions. Inspired by nature, various quinone-containing electron mediators

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::205e074038e06a0028ab6cab74fae1c3
https://pubmed.ncbi.nlm.nih.gov/34706164

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Simple and fast Ag deposition method using a redox enzyme label and quinone substrate for the sensitive electrochemical detection of thyroid-stimulating hormone

Autor: Gyeongho Kim, Haesik Yang, Ponnusamy Nandhakumar, Aman Bhatia, Young Ho Yoon, Nam-Sihk Lee

Publikováno v: Biosensorsbioelectronics. 197

Enzyme-induced seedless Ag deposition is useful for selective Ag deposition and subsequent electrochemical Ag oxidation; however, a washing step is required after the deposition and before the electrochemical oxidation as the enzyme substrate can be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95fdf44c94a7d8fd0d2671023a44ccd5
https://pubmed.ncbi.nlm.nih.gov/34763152

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Use of a Phosphatase-Like DT-Diaphorase Label for the Detection of Outer Membrane Vesicles

Autor: Hyeri Ha, Haesik Yang, Sohee Lee, Andi Muhammad Ichzan, Jung Min Joo, Kwang-sun Kim, Ponnusamy Nandhakumar, Chiew San Fang

Publikováno v: Analytical Chemistry. 91:4680-4686

DT-diaphorase (DT-D) is known to mainly catalyze the two-electron reduction of quinones and nitro(so) compounds. Detection of Gram-negative bacterial outer membrane vesicles (OMVs) that contain pyrogenic lipopolysaccharides (LPSs, also called endotox

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35254a396161944bb9fd28ba6ea6816e
https://doi.org/10.1021/acs.analchem.9b00064

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