Synthesis and characterization of novel positively charged gold nanoparticle for the detection of food contaminants by Vimala Rani Samuel, K. Jagajjanani Rao

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Approches archéométriques non destructives sur les engobes des sigillées africaines by Rémi Rêve, Jean-Paul Ambrosi, Claudio Capelli

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A Highly Sensitive Dual-Signal Strategy via Inner Filter Effect between Tween 20-Gold Nanoparticles and CdSe/ZnS Quantum Dots for Detecting Cu²⁺ by Yong Xie, Chao Bian, Mingjie Han, Ri Wang, Yang Li, Yuhao Xu, Shanhong Xia

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Immobilized Sorption-Colorimetric Microprobes for Chemical Analysis by Sergey Kovalev, Tatyana Tikhomirova, Vladimir Apyari

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Optical Sensing of Mercury Using Fluorescent Silver and Gold Nanoclusters by Mehmet Gokhan Caglayan

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Recent Progress on Optical Biosensors Developed for Nucleic Acid Detection Related to Infectious Viral Diseases by Ece Eksin, Arzum Erdem

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Fenton Oxidation using Easily Recoverable Catalyst of Magnetite (Fe3O4) as an Efficient Approach to Treatment of Rhodamine B Dyeing Effluent in Traditional Fabrics Industry by Imam Prasetyo, Febry Akbar, Anindya Widi Prabandari, Teguh Ariyanto

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The Colour of the Night Sky by Zoltán Kolláth, Dénes Száz, Kai Pong Tong, Kornél Kolláth

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Sample Treatment with Trypsin for RT-LAMP COVID-19 Diagnosis by Soraya García-Sorribes, Francisco Lara-Hernández, Iris Manzano-Blasco, Jessica Abadía-Otero, Eliseo Albert, Alba Mulet, Laisa Socorro Briongos-Figuero, Miriam Gabella-Martín, Ignacio Torres, Jaime Signes-Costa, David Navarro, Juan-Carlos Martín-Escudero, Ana-Bárbara García-García, Felipe Javier Chaves

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Cleaning testing of nineteenth-century plaster surface models with thin polyacrylamide-based gel layers attached to flexible polyethylene films by Charis Theodorakopoulos, Valentina Risdonne, Silvia Freese, Samar Diraoui, Ulrich Jonas

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Color models of interference images of thin stratified objects in optical microscopy by Anton Dyachenko, Vladimir Ryabukho

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Sensitivity Intensified Ninhydrin-Based Chromogenic System by Ethanol-Ethyl Acetate: Application to Relative Quantitation of GABA by Haixing Li, Lingqin Wang, Lijuan Nie, Xiaohua Liu, Jinheng Fu

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Determining the color of a multi-colored object with relatively large dimensions by Leonid D. Lozhkin, Andrey A. Voronoi, Alexander A. Soldatov, Alexander A. Kuzmenko, Lyudmila N. Filimonova, Maxim Y. Ponamorev, Irina V. Andronova

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Tailored Aptamer-Based Visual Colorimetric Detection of Staphylococcal Enterotoxin A Using Gold Nanoparticles by CUI Liwei, WEI Rong, CHANG Weidan, YUE Xiaoyu, XU Wentao

Subjects: “…staphylococcal enterotoxin a; visualization; aptamer; truncation; molecular dynamics simulation; gold nanoparticles-based colorimetry…”
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Differences in available phosphorus evaluated by soil tests in relation to detection by colorimetric and ICP-AES techniques by J. Matula

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Challenges and proposed solutions for optical reading on point-of-need testing systems by Federico Schaumburg, Claudio L. A. Berli

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Current Challenges and Future Trends of Enzymatic Paper-Based Point-of-Care Testing for Diabetes Mellitus Type 2 by Margarita Ortiz-Martínez, Raquel Flores-DelaToba, Mirna González-González, Marco Rito-Palomares

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Study on Extra Virgin Olive Oil: Quality Evaluation by Anti-Radical Activity, Color Analysis, and Polyphenolic HPLC-DAD Analysis by Francesco Cairone, Stefania Petralito, Luigi Scipione, Stefania Cesa

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A High-Throughput, Precipitating Colorimetric Sandwich ELISA Microarray for Shiga Toxins by Andrew Gehring, Xiaohua He, Pina Fratamico, Joseph Lee, Lori Bagi, Jeffrey Brewster, George Paoli, Yiping He, Yanping Xie, Craig Skinner, Charlie Barnett, Douglas Harris

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Analysis of effect of storage time and centrifugation speed on activity of biliary α-amylase by LI Guangming, LIU Jiayue, ZHANG Guixin, LI Shijie, SHANG Dong, CHEN Hailong, YANG Yulong

Subjects: “…|biliary α-amylase|storage time|centrifugation speed|stability|iodine-starch colorimetry…”
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