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Vakh C, Mallabaeva Z, Tobiszewski M. Smartphone-based digital image colorimetry for the determination of total capsaicinoid content in chili pepper extracts. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 315:124238. [PMID: 38593543 DOI: 10.1016/j.saa.2024.124238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/23/2024] [Accepted: 04/01/2024] [Indexed: 04/11/2024]
Abstract
A simple smartphone-based digital image colorimetry was proposed for the determination of total capsaicinoid content and the assessment of chili pepper pungency. The biobased solvent D-limonene was used for the first time to isolate analytes. Capsaicinoids were efficiently separated from chili pepper by solid-liquid extraction with D-limonene followed by partitioning of the analytes into the ammonium hydroxide solution to eliminate the matrix interference effect. For colorimetric detection of total capsaicinoid content, a selective chromogenic reaction was performed using Gibbs reagent (2,6-dichloroquinone-4-chloroimide). Measurements were performed using a smartphone-based setup and included image analysis with the program ImageJ. The limit of detection of the proposed procedure was 0.15 mg g-1. The intra-day repeatability did not exceed 10.0 %. The inter-day repeatability was less than 16.5 %. The comparison of the smartphone-based procedure with high-performance liquid chromatography showed satisfactory results.
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Affiliation(s)
- Christina Vakh
- Department of Analytical Chemistry, Faculty of Chemistry and EcoTech Center, Gdańsk University of Technology (GUT), ul. G. Narutowicza 11/12, 80-233 Gdańsk, Poland.
| | - Zarina Mallabaeva
- Department of Analytical Chemistry, Faculty of Chemistry and EcoTech Center, Gdańsk University of Technology (GUT), ul. G. Narutowicza 11/12, 80-233 Gdańsk, Poland.
| | - Marek Tobiszewski
- Department of Analytical Chemistry, Faculty of Chemistry and EcoTech Center, Gdańsk University of Technology (GUT), ul. G. Narutowicza 11/12, 80-233 Gdańsk, Poland.
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2
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Ju HH, Park HK, Wu J, Nam YR, Kim E, Seo J, Lee H. Simultaneous coupling of metal removal and visual detection by nature-inspired polyphenol-amine surface chemistry. SOFT MATTER 2024; 20:2584-2591. [PMID: 38415992 DOI: 10.1039/d3sm01363d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
The interplay between polyphenols, amines, and metals has broad implications for surface chemistry, biomaterials, energy storage, and environmental science. Traditionally, polyphenol-amine combinations have been recognized for their ability to form adhesive, material-independent thin layers that offer a diverse range of surface functionalities. Herein, we demonstrate that a coating of tannic acid (TA) and polyethyleneimine (PEI) provides an efficient platform for capturing and monitoring metal ions in water. A unique feature of our PEI/TA-coated microbeads is the 'Detection-Capture' (Detec-Ture) mechanism. The galloyl groups in TA coordinate with Fe(III) ions (capture), initiating their oxidation to gallol-quinone. These oxidized groups subsequently react with PEI amines, leading to the formation of an Fe(II/III)-gallol-PEI network that produces a vivid purple color, thereby enabling visual detection. This mechanism couples metal capture directly with detection, distinguishing our approach from existing studies, which have either solely focused on metal removal or metal detection. The metal capturing capacity of our materials stands at 0.55 mg g-1, comparable to that of established materials like alginate and wollastonite. The detection sensitivity reaches down to 0.5 ppm. Our findings introduce a novel approach to the utility of metal-polyphenol-amine networks, presenting a new class of materials suited for simultaneous metal ion detection and capture in environmental applications.
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Affiliation(s)
- Helen H Ju
- Department of Chemistry, KAIST (Korea Advanced Institute of Science and Technology), Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Hong K Park
- Department of Chemistry, KAIST (Korea Advanced Institute of Science and Technology), Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Jingxian Wu
- Department of Chemistry, KAIST (Korea Advanced Institute of Science and Technology), Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Yu Ri Nam
- Department of Chemistry, KAIST (Korea Advanced Institute of Science and Technology), Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Eunu Kim
- Department of Chemistry, KAIST (Korea Advanced Institute of Science and Technology), Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Jeongin Seo
- Department of Chemistry, KAIST (Korea Advanced Institute of Science and Technology), Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Haeshin Lee
- Department of Chemistry, KAIST (Korea Advanced Institute of Science and Technology), Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
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Destanoğlu O, Cansever MŞ, İşat E, Zübarioğlu T, Aktuğlu Zeybek AÇ, Kıykım E. Analysis of Biotinidase Activity in Serum by Digital Imaging Colorimetry Detection. ACS OMEGA 2023; 8:39796-39806. [PMID: 37901531 PMCID: PMC10601429 DOI: 10.1021/acsomega.3c05759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/28/2023] [Indexed: 10/31/2023]
Abstract
Biotinidase deficiency (BD) is an autosomal recessive inherited disorder of biotin recycling that leads to neurological and cutaneous consequences if left untreated. The clinical features of BD can be ameliorated or prevented by the administration of pharmacological doses of the vitamin biotin. Since it is a treatable disorder, BD is included in the newborn screening program in Türkiye as in many other countries. Therefore, monitoring of biotinidase enzyme activity (BEA) is of vital importance, especially for patients. The aim of this study was to develop a simple and reliable colorimetric method based on digital imaging for the analysis of BEA in serum samples. To determine the optimum distance and LED light source in the analyzer box that we fabricated in the laboratory, images of the solutions in a 96-well microplate were taken with a mobile phone camera, and each color space was examined. The most reliable relationship was between blank subtracted intensities of green channel and analyte concentrations, which was in the range of 35-400 ng/mL p-aminobenzoic acid (r2 = 0.999). The limit of detection and limit of quantification were 11 and 35 ng/mL, respectively. The proposed method was successfully applied to serum samples of 60 patients with BD and 60 healthy controls. We claim that the method can be easily performed for determination of BEA anywhere without needing expensive instruments.
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Affiliation(s)
- Orhan Destanoğlu
- Institute
of Forensic Sciences and Legal Medicine, Department of Science, Istanbul University-Cerrahpasa, Istanbul 34500, Turkey
| | - M. Şerif Cansever
- Vocational
School of Health Services, Department of Medical Services and Techniques, Istanbul University-Cerrahpasa, Istanbul 34265, Turkey
| | - Esra İşat
- Cerrahpasa
Medical Faculty, Division of Nutrition and Metabolism, Department
of Pediatrics, Istanbul University-Cerrahpasa, Istanbul 34098, Turkey
| | - Tanyel Zübarioğlu
- Cerrahpasa
Medical Faculty, Division of Nutrition and Metabolism, Department
of Pediatrics, Istanbul University-Cerrahpasa, Istanbul 34098, Turkey
| | - A. Çiğdem Aktuğlu Zeybek
- Cerrahpasa
Medical Faculty, Division of Nutrition and Metabolism, Department
of Pediatrics, Istanbul University-Cerrahpasa, Istanbul 34098, Turkey
| | - Ertuğrul Kıykım
- Cerrahpasa
Medical Faculty, Division of Nutrition and Metabolism, Department
of Pediatrics, Istanbul University-Cerrahpasa, Istanbul 34098, Turkey
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Abdullahi AB, Ismail S, Alshana U, Ertaş N. Smartphone digital image colorimetry combined with deep eutectic solvent-liquid–liquid microextraction for the determination of cobalt in milk and dairy products. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2023.105263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Lemon juice-derived nitrogen-doped carbon quantum dots for highly sensitive and selective determination of ferrous ions and cell imaging. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Taweekarn T, Wongniramaikul W, Boonkanon C, Phanrit C, Sriprom W, Limsakul W, Towanlong W, Phawachalotorn C, Choodum A. Starch Biocryogel for Removal of Methylene Blue by Batch Adsorption. Polymers (Basel) 2022; 14:polym14245543. [PMID: 36559910 PMCID: PMC9787997 DOI: 10.3390/polym14245543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
A green monolithic starch cryogel was prepared and applied for the removal of methylene blue (MB) using a batch system. The influence of various experimental parameters on MB adsorption was investigated. High removal efficiency (81.58 ± 0.59%) and adsorption capacity (34.84 mg g-1) were achieved. The Langmuir model better fitted the experimental data (determination coefficient (R2) = 0.9838) than the Freundlich one (R2 = 0.8542), while the kinetics of MB adsorption on the cryogel followed a pseudo-second-order model. The adsorption process was spontaneous and endothermic with an activation energy of 37.8 kJ mol-1 that indicated physical adsorption. The starch cryogel was used for MB removal from a wastewater sample collected from a local Batik production community enterprise in Phuket, Thailand, and a removal efficiency of 75.6% was achieved, indicating that it has a high potential as a green adsorbent for MB removal.
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Affiliation(s)
- Tarawee Taweekarn
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Worawit Wongniramaikul
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Chanita Boonkanon
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Chonthicha Phanrit
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Wilasinee Sriprom
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Wadcharawadee Limsakul
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Wanchitra Towanlong
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Chanadda Phawachalotorn
- King Mongkut’s Institute of Technology Ladkrabang, Prince of Chumphon Campus, Chumphon 86160, Thailand
| | - Aree Choodum
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
- Correspondence: ; Tel.: +66-(0)-7627-6481
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ABUGHRIN S, ALSHANA U, CALEB J. Smartphone Digital Image Colorimetry for the Determination of Aluminum in Antiperspirant Products. Turk J Pharm Sci 2022; 19:618-625. [PMID: 36544269 PMCID: PMC9780579 DOI: 10.4274/tjps.galenos.2021.18828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Objectives This study aims to present a method for the determination of the aluminum in antiperspirant products (APPs) by chelating it with quercetin before its detection by smartphone digital image colorimetry (SDIC). Materials and Methods Samples were prepared by closed-vessel acid digestion in PTFE cups. This was followed by complexation of aluminum in the sample solution using quercetin as a chelating agent. Sample solutions were transferred into a quartz ultraviolet/visible detection microcuvette for detection in a homemade colorimetric box designed for capturing images of the yellow complex with a smartphone camera. The pixel intensity of the images was converted to numbers for quantitation using ImageJ software for a personal computer. An independent study using high-performance liquid chromatography-diode-array detection was conducted to check the accuracy of the proposed method. Results Optimum SDIC conditions included a Samsung C9 smartphone as the detection camera, a cropped region of interest of 6400 px2, and the side position of the colorimetric box were selected for capturing the images of the sample solutions placed 10.0 cm from the detection camera, whereas optimum complexation conditions were found to be as sample pH of 5.5, sample volume of 3.0 mL, complexation time of 1.0 min and a ligand concentration of 0.28 mmol L-1. Analytical performance of the method included a limit of detection of 0.5 μmol L-1 and a coefficient of determination (R2) of the calibration graph of 0.9981. Conclusion The proposed method was successfully applied for the determination of aluminum in APPs with percentage recoveries ranging from 80.0 to 109.6%.
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Affiliation(s)
- Suad ABUGHRIN
- Near East University, Faculty of Pharmacy, Department of Analytical Chemistry, Nicosia, Cyprus,Center for Solar Energy Research and Studies, Libyan Authority for Scientific Research, Tripoli, Libya
| | - Usama ALSHANA
- Near East University, Faculty of Pharmacy, Department of Analytical Chemistry, Nicosia, Cyprus,Sultan Qaboos University, College of Science, Department of Chemistry, Muscat, Oman,* Address for Correspondence: Phone: +96824141511 E-mail:
| | - Jude CALEB
- Near East University, Faculty of Pharmacy, Department of Analytical Chemistry, Nicosia, Cyprus
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Vonnie JM, Jing Ting B, Rovina K, Erna KH, Felicia WXL, Nur ‘Aqilah NM, Abdul Wahab R. Development of Aloe Vera-Green Banana Saba-Curcumin Composite Film for Colorimetric Detection of Ferrum (II). Polymers (Basel) 2022; 14:polym14122353. [PMID: 35745929 PMCID: PMC9227415 DOI: 10.3390/polym14122353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/22/2022] [Accepted: 05/29/2022] [Indexed: 12/27/2022] Open
Abstract
This study was performed to develop and characterize a bio-film composed of Aloe vera (Aloe barbadensis), green banana Saba (Musa acuminata x balbisiana), and curcumin for the detection of Fe2+ ions. Cross-linking interaction between banana starch-aloe vera gel and banana starch-curcumin enhanced l the sensing performance of the composite film towards divalent metal ions of Fe2+. The morphological structure of the Aloe vera-banana starch-curcumin composite revealed a smooth and compact surface without cracks and some heterogeneity when observed under Scanning Electron Microscopy (SEM). The thickness, density, color property, opacity, biodegradation, moisture content, water-solubility, water absorption, swelling degree, and water vapor permeability of bio-films were measured. The incorporation of aloe vera gel and curcumin particles onto the banana starch film has successfully improved the film properties. The formation of the curcumin-ferrum (II) complex has triggered the film to transform color from yellow to greenish-brown after interaction with Fe2+ ions that exhibit an accuracy of 101.11% within a swift reaction time. Good linearity (R2 = 0.9845) of response on colorimetric analysis was also obtained in Fe2+ ions concentration that ranges from 0 to 100 ppm, with a limit of detection and quantification found at 27.84 ppm and 92.81 ppm, respectively. In this context, the film was highly selective towards Fe2+ ions because no changes of color occur through naked eye observation when films interact with other metal ions, including Fe3+, Pb2+, Ni2+, Cd2+, and Cu2+. Thus, these findings encourage curcumin-based starch films as sensing materials to detect Fe2+ ions in the field of food and agriculture.
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Affiliation(s)
- Joseph Merillyn Vonnie
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia; (J.M.V.); (B.J.T.); (K.H.E.); (W.X.L.F.); (N.M.N.‘A.)
| | - Bong Jing Ting
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia; (J.M.V.); (B.J.T.); (K.H.E.); (W.X.L.F.); (N.M.N.‘A.)
| | - Kobun Rovina
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia; (J.M.V.); (B.J.T.); (K.H.E.); (W.X.L.F.); (N.M.N.‘A.)
- Correspondence: ; Tel.: +0060-88-320000 (ext. 8713); Fax: +0060-88-320993
| | - Kana Husna Erna
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia; (J.M.V.); (B.J.T.); (K.H.E.); (W.X.L.F.); (N.M.N.‘A.)
| | - Wen Xia Ling Felicia
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia; (J.M.V.); (B.J.T.); (K.H.E.); (W.X.L.F.); (N.M.N.‘A.)
| | - Nasir Md Nur ‘Aqilah
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia; (J.M.V.); (B.J.T.); (K.H.E.); (W.X.L.F.); (N.M.N.‘A.)
| | - Roswanira Abdul Wahab
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia;
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Chen Q, Luo C, Ma Q, Yan X, Cai X. Synthesis and characterization of 1,3‐butadiene‐containing hyperbranched conjugated polymers as a selective chemosensors for Fe
3+
ions. J Appl Polym Sci 2022. [DOI: 10.1002/app.51966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Qi Chen
- Key Laboratory of Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering, Shaanxi Normal University Xi'an China
| | - Chuxin Luo
- Key Laboratory of Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering, Shaanxi Normal University Xi'an China
| | - Qi Ma
- Key Laboratory of Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering, Shaanxi Normal University Xi'an China
| | - Xueyang Yan
- Key Laboratory of Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering, Shaanxi Normal University Xi'an China
| | - Xuediao Cai
- Key Laboratory of Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering, Shaanxi Normal University Xi'an China
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de Carvalho Oliveira G, Machado CCS, Inácio DK, Silveira Petruci JFD, Silva SG. RGB color sensor for colorimetric determinations: Evaluation and quantitative analysis of colored liquid samples. Talanta 2022; 241:123244. [DOI: 10.1016/j.talanta.2022.123244] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 12/18/2022]
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Taweekarn T, Wongniramaikul W, Choodum A. Removal and recovery of phosphate using a novel calcium silicate hydrate composite starch cryogel. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 301:113923. [PMID: 34634722 DOI: 10.1016/j.jenvman.2021.113923] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/10/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
Phosphate is a major pollutant that deteriorates water quality and causes eutrophication, a novel calcium silicate hydrate composite cryogel (Cry-CSH) was thus successfully prepared for phosphate removal and recovery in this work. Calcium silicate hydrate (C-S-H) was mixed with the gel precursor (7.5% w/w) prepared from native starch and limewater (saturated calcium hydroxide solution as the cross-linker). The mixture was frozen and thawed for 3 cycles giving an interconnected macroporous composite. This had C-S-H nanoparticles (75 mg) immobilized on a monolithic floatable cryogel network (2.5 cm diameter × 1.0 cm height) enabling an easier recovery and without the losses that occur when using C-S-H nanoparticles. The phosphate adsorption reaches equilibrium at 120 min with adsorption capacity of 2.50 mgPO43-/gCry-CSH (65.42 mgPO43-/gC-S-H) under optimum conditions. Adsorption equilibrium data were well fit by the Freundlich isotherm model, while kinetic results were well fit by the pseudo second-order model. The calculated activation energy (Ea) of 43.9 kJ/mol indicates chemical adsorption, while a positive change in enthalpy (ΔH0, 19.3 kJ/mol) indicates the endothermic nature of phosphate adsorption. Cry-CSH can remove phosphate from wastewater and effluent samples with excellent removal efficiency (>98%). It can float on water surface for at least 105 days without damage, while its phosphate adsorbed form can be biodegraded within 10 days under soil buried conditions. Thus, this work demonstrated the significant potential of Cry-CSH for practical and environmentally friendly phosphate removal and recovery.
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Affiliation(s)
- Tarawee Taweekarn
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket, 83120, Thailand
| | - Worawit Wongniramaikul
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket, 83120, Thailand
| | - Aree Choodum
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket, 83120, Thailand.
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12
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Keshan Balavandy S, Li F, Macdonald NP, Maya F, Townsend AT, Frederick K, Guijt RM, Breadmore MC. Scalable 3D printing method for the manufacture of single-material fluidic devices with integrated filter for point of collection colourimetric analysis. Anal Chim Acta 2021; 1151:238101. [PMID: 33608072 DOI: 10.1016/j.aca.2020.11.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/20/2020] [Accepted: 11/21/2020] [Indexed: 10/22/2022]
Abstract
Assembly and bonding are major obstacles in manufacturing of functionally integrated fluidic devices. Here we demonstrate a single-material 3D printed device with an integrated porous structure capable of filtering particulate matter for the colourimetric detection of iron from soil and natural waters. Selecting a PolyJet 3D printer for its throughput, integrated filters were created exploiting a phenomenon occurring at the interface between the commercially available build material (Veroclear-RGD810) and water-soluble support material (SUP707). The porous properties were tuneable by varying the orientation of the print head relative to the channel and by varying the width of the build material. Porous structures ranging from 100 to 200 μm in thickness separated the sample and reagent chambers, filtering particles larger than 15 μm in diameter. Maintaining the manufacturing throughput of the Polyjet printer, 221 devices could be printed in 1.5 h (∼25 s per device). Including the 12 h post-processing soak in sodium hydroxide to remove the solid support material, the total time to print and process 221 devices was 13.5 h (3.6 min per device), with a material cost of $2.50 each. The applicability of the fluidic device for point of collection analysis was evaluated using colourimetric determination of iron from soil slurry and environmental samples. Following the reduction of Fe3+ to Fe2+ using hydroxylammonium chloride, samples were introduced to the fluidic device where particulate matter was retained by the filter, allowing for particulate-free imaging of the red complex formed with 1,10-phenanthroline using a smartphone camera. The calibration curve ranged from of 1-100 mg L-1 Fe2+ and good agreement (95%) was obtained between the point of collection device and Sector Field ICP-MS.
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Affiliation(s)
- Sepideh Keshan Balavandy
- Australian Centre for Research on Separation Science, School of Natural Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia.
| | - Feng Li
- Australian Centre for Research on Separation Science, School of Natural Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia.
| | - Niall P Macdonald
- ARC Centre of Excellence for Electromaterials Science (ACES), School of Chemistry, University of Tasmania, Hobart, 7001, TAS, Australia; KLA, Kilcarbery Business Park, Dublin 22, Ireland.
| | - Fernando Maya
- Australian Centre for Research on Separation Science, School of Natural Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia.
| | - Ashley T Townsend
- Central Science Laboratory, University of Tasmania, Hobart, 7001, TAS, Australia.
| | - Kimberley Frederick
- Department of Chemistry, Skidmore College, Saratoga Springs, NY, 12866, United States.
| | - Rosanne M Guijt
- Centre for Regional and Rural Futures, Deakin University, Geelong, Australia.
| | - Michael C Breadmore
- Australian Centre for Research on Separation Science, School of Natural Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania, 7001, Australia; ARC Centre of Excellence for Electromaterials Science (ACES), School of Chemistry, University of Tasmania, Hobart, 7001, TAS, Australia.
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13
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Ballesteros JI, Caleja-Ballesteros HJR, Villena MC. Digital image-based method for iron detection using green tea (Camellia sinensis) extract as natural colorimetric reagent. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105652] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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14
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Choodum A, Tiengtum J, Taweekarn T, Wongniramaikul W. Convenient environmentally friendly on-site quantitative analysis of nitrite and nitrate in seawater based on polymeric test kits and smartphone application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 243:118812. [PMID: 32854085 DOI: 10.1016/j.saa.2020.118812] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 07/10/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023]
Abstract
Nowadays, nitrate (NO3-) and nitrite (NO2-) in aquatic ecosystems have increased due to various anthropogenic activities leading to deterioration of the ecosystem and can accelerate eutrophication. A Griess reagent-doped hydrogel test kit and a zinc powder-doped starch film were thus developed for on-site quantitative analysis of nitrate and nitrite. A clear colorless hydrogel tablet (diameter 1.5 cm 2 mm thickness) turned pink-violet after reacting with a standard solution of nitrite while the gray zinc-doped starch film (8.36 μm thickness) fabricated on the inner lid of small plastic tube was used for the in-tube reduction of nitrate to be nitrite. The use of this film followed by nitrite testing using the hydrogel tablet was used as a nitrate test. Both the materials developed were used in conjunction with digital image colorimetry (DIC) using smartphone application for on-site quantitative analysis of nitrite and nitrate. Good linearity (R2 > 0.99) ranges of 0.05 to 5 mg L-1 for nitrite and 1 to 50 mg L-1 for nitrate were obtained and detection limits of 50 μg L-1 for nitrite and 0.32 mg L-1 for nitrate were achieved. Good accuracy was obtained in terms of a relative error in a range of 0.75 to 2.68% with inter-day precision in a range of 0.20 to 0.50%RSD (n = 3). Quantitative analysis of nitrate and nitrite in 10 seawater samples taken in Phuket was in good agreement with the standard method (95% confidence level). Since the method developed employs test kits synthesized using biodegradable polymers and DIC using a smartphone application, it will allow the rapid on-site quantitative detection of nitrate and nitrite in a more convenient and environmentally friendly system.
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Affiliation(s)
- Aree Choodum
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand.
| | - Junthip Tiengtum
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Tarawee Taweekarn
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Worawit Wongniramaikul
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand; The Development of Management System for Reduction and Control of Water Contamination and Distribution in Songkhla Lake Basin and the Western Coastline of the South of Thailand, Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand
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Ozkok F, Sahin YM, Enisoglu Atalay V, Asgarova K, Onul N, Catal T. Sensitive detection of iron (II) sulfate with a novel reagent using spectrophotometry. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118631. [PMID: 32619787 DOI: 10.1016/j.saa.2020.118631] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/12/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
In this study, a novel reagent was developed for sensitive detection of iron (II) sulfate, spectrophotometrically. A novel thio-anthraquinone derivative, 1-(Dodecylthio)anthracene-9,10-dione (3), was synthesized from the chemical reaction of 1-Chloroanthraquinone (1) and 1-Dodecanethiol (2) by an original reaction method and was used in the preparation of the novel reagent called Catal's reagent. A synthesized thio-anthraquinone analogue (3) was purified by column chromatography, and its chemical structure was characterized by spectroscopic methods such as Fourier-transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR) spectroscopy, mass spectrometry (MS), and ultraviolet (UV)-visible spectrophotometry. The chemical and molecular structure of the developed thio-antraquinone derivative (3) was illuminated using computational methods with the GaussView5 and Gaussian09 programs. Various solvents including ethanol, methanol, and acetonitrile were examined in the preparation of the reagent. A concentration range from 0.2 mg mL-1 up to 10 mg mL-1 of iron (II) sulfate heptahydrate solution in distilled water was prepared. The absorption spectra of Catal's reagent (0.816 mM) showed three peaks between 185 nm-700 nm of wavelength. However, after the reaction with H2O2 and the 30 mM trisodium citrate dihydrate mixture in the presence of an iron sulfate (II) solution, a single peak was observed, producing a stable and reddish/brownish homogenous solution (λ max = 304 nm). The following concentrations of iron (II) sulfate heptahydrate was examined using developed protocol and the reagent, and the concentrations were measured spectrophotometrically at 304 nm, 0.2-1 mg mL-1. Absorbances of reaction mixtures of iron (II) sulfate remained stable up to 48 h. The results indicated that the novel Catal's reagent can be used for sensitive spectrophotometric detection of iron (II) sulfate in aqueous solutions.
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Affiliation(s)
- Funda Ozkok
- Department of Chemistry, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey.
| | - Yesim Muge Sahin
- Department of Biomedical Engineering, Istanbul Arel University, Turkey; Polymer Technologies and Composite Aplication and Research Center (ArelPOTKAM), Istanbul Arel University Buyukcekmece, Istanbul, Turkey.
| | - Vildan Enisoglu Atalay
- Istanbul Protein Research Application and Inovation Center (PROMER), Turkey; Department of Bioengineering, Uskudar University, 34662 Uskudar, Istanbul, Turkey
| | - Kamala Asgarova
- Department of Chemistry, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
| | - Nihal Onul
- Department of Chemistry, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
| | - Tunc Catal
- Istanbul Protein Research Application and Inovation Center (PROMER), Turkey; Department of Molecular Biology and Genetics, Uskudar University, 34662 Uskudar, Istanbul, Turkey.
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Li Y, Chen W, Lu L. Wearable and Biodegradable Sensors for Human Health Monitoring. ACS APPLIED BIO MATERIALS 2020; 4:122-139. [DOI: 10.1021/acsabm.0c00859] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yang Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, P. R. China
- University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Weihua Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, P. R. China
- University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Lehui Lu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, P. R. China
- University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
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Hoque Tania M, Kaiser MS, Abu-Hassan K, Hossain MA. Pathological test type and chemical detection using deep neural networks: a case study using ELISA and LFA assays. JOURNAL OF ENTERPRISE INFORMATION MANAGEMENT 2020. [DOI: 10.1108/jeim-01-2020-0038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Purpose
The gradual increase in geriatric issues and global imbalance of the ratio between patients and healthcare professionals have created a demand for intelligent systems with the least error-prone diagnosis results to be used by less medically trained persons and save clinical time. This paper aims at investigating the development of image-based colourimetric analysis. The purpose of recognising such tests is to support wider users to begin a colourimetric test to be used at homecare settings, telepathology and so on.
Design/methodology/approach
The concept of an automatic colourimetric assay detection is delivered by utilising two cases. Training deep learning (DL) models on thousands of images of these tests using transfer learning, this paper (1) classifies the type of the assay and (2) classifies the colourimetric results.
Findings
This paper demonstrated that the assay type can be recognised using DL techniques with 100% accuracy within a fraction of a second. Some of the advantages of the pre-trained model over the calibration-based approach are robustness, readiness and suitability to deploy for similar applications within a shorter period of time.
Originality/value
To the best of the authors’ knowledge, this is the first attempt to provide colourimetric assay type classification (CATC) using DL. Humans are capable to learn thousands of visual classifications in their life. Object recognition may be a trivial task for humans, due to photometric and geometric variabilities along with the high degree of intra-class variabilities, it can be a challenging task for machines. However, transforming visual knowledge into machines, as proposed, can support non-experts to better manage their health and reduce some of the burdens on experts.
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Choodum A, Jirapattanasophon V, Boonkanon C, Taweekarn T, Wongniramaikul W. Difluoroboron-Curcumin Doped Starch Film and Digital Image Colorimetry for Semi-Quantitative Analysis of Arsenic. ANAL SCI 2020; 36:577-582. [PMID: 32201405 DOI: 10.2116/analsci.19sbp09] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This work presents a novel, simple, rapid, and cost effective method for semi-quantitative analysis of arsenic(III) in water sample. The method was based on the digital image colorimetry (DIC) of difluoroboron-curcumin doped starch film (BF2-cur-film) and arsenic ion in water. A red BF2-cur-film (9.4 μm) was fabricated by entrapped difluoroboron-curcumin (BF2-curcumin, particle size of 60 - 113 nm) in tapioca starch film. When the standard solution of arsenic (1 mL) was added into small plastic tube containing BF2-cur-film on its inner lid, blue solution (λmax at 610 nm) was observed instead of orange color in blank solution (λmax at 495 nm). When BF2-cur-film was used in conjunction with DIC, a wide linear range of 0 - 10 mg L-1 with good linearity (R2 > 0.99) was obtained from green channel with low detection limit of 0.04 mg L-1. Moreover, good precision (0.9 - 1.2%RSD, n = 4 days) and accuracy (0.03% relative error) were also achieved.
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Affiliation(s)
- Aree Choodum
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus
| | - Vanida Jirapattanasophon
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus
| | - Chanita Boonkanon
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus
| | - Tarawee Taweekarn
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus
| | - Worawit Wongniramaikul
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus.,Research Program: The Development of Management System for Reduction and Control of Water Contamination and Distribution in Songkhla Lake Basin and the Western Coastline of the South of Thailand, Center of Excellence on Hazardous Substance Management (HSM)
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Lei Y, Qiu F, Jin XY, Yang JM, Liu M, Ge QM, Cong H, Tao Z. A high-sensitive sensor with HEPES-enhanced electrochemiluminescence of benzo[3]uril for Fe 3+ and its application in human serum. Analyst 2020; 145:1810-1816. [PMID: 31951229 DOI: 10.1039/c9an02156f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
An electrochemiluminescence (ECL) sensor based on a benzo[3]uril-modified glassy carbon electrode with sensitized luminescence, with the coexistence of 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES) as the coreactant, was successfully constructed. The sensitization mechanism was proposed by analyzing the results of the control experiments for establishing the relationship of the luminescence effect with the concentration of HEPES. Under the optimized conditions, the fabricated sensor system was applied for the detection of Fe3+ in an aqueous solution with good sensitivity and selectivity. A low detection limit of 0.41 nM was achieved, indicating superior sensor performance over the previous analytical methods. The ECL sensor system was employed for the detection of Fe3+ in human serum samples to produce excellent recoveries ranging from 96.17% to 101.81%.
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Affiliation(s)
- Yao Lei
- Key laboratory of macrocyclic and supramolecular chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China.
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Boonkanon C, Phatthanawiwat K, Wongniramaikul W, Choodum A. Curcumin nanoparticle doped starch thin film as a green colorimetric sensor for detection of boron. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 224:117351. [PMID: 31336322 DOI: 10.1016/j.saa.2019.117351] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 06/16/2019] [Accepted: 07/07/2019] [Indexed: 06/10/2023]
Abstract
A tapioca starch film doped with curcumin nanoparticles was successfully fabricated and applied as a novel green colorimetric sensor for detection of boron in wastewater. Curcumin nanoparticles (curn, 30-90 nm) extracted from turmeric powder were used as a green probe, while tapioca starch was used as a natural support substrate. A yellow thin film (51 μm thick) fabricated on a used plastic spoon turned red-brown after immersion in boron solution (pH 9) for 15 min with excellent selectivity. The film costs only 0.0007 USD, while the cost of the sensor (curn-film on new plastic spoon) was 0.004 USD. After use the film could be completely washed from the plastic, it being biodegradable, while the used plastic spoon could be re-used to fabricate a new sensor at least 10 times. The good 1.52%RSD precision was obtained across three lots fabricated. When the curn-film was used in conjunction with digital image colorimetry (DIC), a simple and rapid quantification of boron was achieved. The green color layer in reflected light image of the red-brown product (IG) provided the highest sensitivity (64 ± 1 a.u. L mg-1) and the lowest detection limit of 0.052 ± 0.001 mg L-1. The intra-day testing (9 films) had 2.41 to 4.34%RSD, while the inter-day testing had 2.29 to 5.66%RSD (15 films, 5 days). Accuracy in terms of relative error for control samples (0.40 mg L-1) was +3.63%. Wastewater samples from Para-rubber wood processing plant were quantified by curn-film and DIC, giving 4248 ± 391 mg L-1 boron concentration with no significant difference to ICP determination at 95% confidence level. The sensors after storage in a desiccator for a year gave readings changed by only +3.5% and -2.1% relative to freshly prepared sensors.
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Affiliation(s)
- Chanita Boonkanon
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Kharittha Phatthanawiwat
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Worawit Wongniramaikul
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand
| | - Aree Choodum
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket 83120, Thailand.
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João AF, Squissato AL, Fernandes GM, Cardoso RM, Batista AD, Muñoz RA. Iron (III) determination in bioethanol fuel using a smartphone-based device. Microchem J 2019. [DOI: 10.1016/j.microc.2019.02.053] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Dual responsive spiropyran-ended poly(N-vinyl caprolactam) for reversible complexation with metal ions. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1747-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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