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Mandali PK, Prabakaran A, Annadurai K, Krishnan UM. Trends in Quantification of HbA1c Using Electrochemical and Point-of-Care Analyzers. SENSORS (BASEL, SWITZERLAND) 2023; 23:1901. [PMID: 36850502 PMCID: PMC9965793 DOI: 10.3390/s23041901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 01/30/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Glycated hemoglobin (HbA1c), one of the many variants of hemoglobin (Hb), serves as a standard biomarker of diabetes, as it assesses the long-term glycemic status of the individual for the previous 90-120 days. HbA1c levels in blood are stable and do not fluctuate when compared to the random blood glucose levels. The normal level of HbA1c is 4-6.0%, while concentrations > 6.5% denote diabetes. Conventionally, HbA1c is measured using techniques such as chromatography, spectroscopy, immunoassays, capillary electrophoresis, fluorometry, etc., that are time-consuming, expensive, and involve complex procedures and skilled personnel. These limitations have spurred development of sensors incorporating nanostructured materials that can aid in specific and accurate quantification of HbA1c. Various chemical and biological sensing elements with and without nanoparticle interfaces have been explored for HbA1c detection. Attempts are underway to improve the detection speed, increase accuracy, and reduce sample volumes and detection costs through different combinations of nanomaterials, interfaces, capture elements, and measurement techniques. This review elaborates on the recent advances in the realm of electrochemical detection for HbA1c detection. It also discusses the emerging trends and challenges in the fabrication of effective, accurate, and cost-effective point-of-care (PoC) devices for HbA1c and the potential way forward.
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Affiliation(s)
- Pavan Kumar Mandali
- Centre for Nanotechnology& Advanced Biomaterials, SASTRA Deemed University, Thanjavur 613 401, India
- School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, India
| | - Amrish Prabakaran
- Centre for Nanotechnology& Advanced Biomaterials, SASTRA Deemed University, Thanjavur 613 401, India
- School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, India
| | - Kasthuri Annadurai
- Centre for Nanotechnology& Advanced Biomaterials, SASTRA Deemed University, Thanjavur 613 401, India
- School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, India
- School of Arts, Sciences, Humanities & Education, SASTRA Deemed University, Thanjavur 613 401, India
| | - Uma Maheswari Krishnan
- Centre for Nanotechnology& Advanced Biomaterials, SASTRA Deemed University, Thanjavur 613 401, India
- School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, India
- School of Arts, Sciences, Humanities & Education, SASTRA Deemed University, Thanjavur 613 401, India
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Development of glycated peptide enzyme sensor based flow injection analysis system for haemoglobin A1c monitoring using quasi-direct electron transfer type engineered fructosyl peptide oxidase. Biosens Bioelectron 2021; 177:112984. [PMID: 33477030 DOI: 10.1016/j.bios.2021.112984] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/26/2020] [Accepted: 01/05/2021] [Indexed: 11/21/2022]
Abstract
Haemoglobin A1c (hemoglobin A1c, HbA1c) is an important long-term glycemic control marker for diabetes. The aim of this study was to develop an enzyme flow injection analysis (FIA) system using engineered fructosyl peptide oxidase (FPOx) based on 2.5th generation principle for an HbA1c automated analytical system. FPOx from Phaeosphaeria nodorum (PnFPOx) was engineered by introducing a Lys residue at the R414 position, to be modified with amine reactive phenazine ethosulfate (arPES) in proximity of FAD. The engineered PnFPOx mutant with minimized oxidase activity, N56A/R414K, showed quasi-direct electron transfer (quasi-DET) ability after PES-modification. The FIA system was constructed by employing a PES-modified PnFPOx N56A/R414K and operated at 0 V against Ag/AgCl. The system showed reproducible responses with a linear range of 20-500 μM for both fructosyl valine (FV) and fructosyl valylhistidine (FVH), with sensitivities of 0.49 nA μM-1 and 0.13 nA μM-1, and the detection limits of 1.3 μM and 2.0 μM for FV and FVH, respectively. These results indicate that the enzyme electrochemical FIA system covers the clinical range of HbA1c detection for more 200 consecutive measurements. Protease digested three different levels of HbA1c samples including healthy and diabetic range subjects were also measured with the FIA system. Thus, it will be possible to develop an integrated system consisting of sample pretreatment and sample electrochemical measurement based on an FIA system possessing quasi-DET type PnFPOx.
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Hatada M, Tsugawa W, Kamio E, Loew N, Klonoff DC, Sode K. Development of a screen-printed carbon electrode based disposable enzyme sensor strip for the measurement of glycated albumin. Biosens Bioelectron 2017; 88:167-173. [DOI: 10.1016/j.bios.2016.08.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/01/2016] [Accepted: 08/02/2016] [Indexed: 12/15/2022]
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Kameya M, Tsugawa W, Yamada-Tajima M, Hatada M, Suzuki K, Sakaguchi-Mikami A, Ferri S, Klonoff DC, Sode K. Electrochemical sensing system employing fructosamine 6-kinase enables glycated albumin measurement requiring no proteolytic digestion. Biotechnol J 2016; 11:797-804. [DOI: 10.1002/biot.201500442] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 02/25/2016] [Accepted: 04/06/2016] [Indexed: 01/13/2023]
Affiliation(s)
- Miho Kameya
- Department of Biotechnology and Life Science, Graduate School of Engineering; Tokyo University of Agriculture and Technology; Tokyo Japan
| | - Wakako Tsugawa
- Department of Biotechnology and Life Science, Graduate School of Engineering; Tokyo University of Agriculture and Technology; Tokyo Japan
| | - Mayumi Yamada-Tajima
- Department of Biotechnology and Life Science, Graduate School of Engineering; Tokyo University of Agriculture and Technology; Tokyo Japan
| | - Mika Hatada
- Department of Biotechnology and Life Science, Graduate School of Engineering; Tokyo University of Agriculture and Technology; Tokyo Japan
| | - Keita Suzuki
- Department of Biotechnology and Life Science, Graduate School of Engineering; Tokyo University of Agriculture and Technology; Tokyo Japan
| | - Akane Sakaguchi-Mikami
- D epartment of Medical Technology, School of Health Sciences, Graduate School of Bionics, Computer and Media Sciences; Tokyo University of Technology; Tokyo Japan
| | - Stefano Ferri
- Department of Engineering, Graduate School of Integrated Science and Technology; Shizuoka University; Tokyo Japan
| | - David C. Klonoff
- Diabetes Research Institute; Mills-Peninsula Health Services; San Mateo California USA
| | - Koji Sode
- Department of Biotechnology and Life Science, Graduate School of Engineering; Tokyo University of Agriculture and Technology; Tokyo Japan
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Kameya M, Sakaguchi-Mikami A, Ferri S, Tsugawa W, Sode K. Advancing the development of glycated protein biosensing technology: next-generation sensing molecules. J Diabetes Sci Technol 2015; 9:183-91. [PMID: 25627465 PMCID: PMC4604589 DOI: 10.1177/1932296814565784] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Research advances in biochemical molecules have led to the development of convenient and reproducible biosensing molecules for glycated proteins, such as those based on the enzymes fructosyl amino acid oxidase (FAOX) or fructosyl peptide oxidase (FPOX). Recently, more attractive biosensing molecules with potential applications in next-generation biosensing of glycated proteins have been aggressively reported. We review 2 such molecules, fructosamine 6-kinase (FN6K) and fructosyl amino acid-binding protein, as well as their recent applications in the development of glycated protein biosensing systems. Research on FN6K and fructosyl amino acid-binding protein has been opening up new possibilities for the development of highly sensitive and proteolytic-digestion-free biosensing systems for glycated proteins.
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Affiliation(s)
- Miho Kameya
- Department of Biotechnology & Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Akane Sakaguchi-Mikami
- Department of Medical Technology, School of Health Sciences, Graduate School of Bionics, Computer and Media Sciences, Tokyo University of Technology, Tokyo, Japan
| | - Stefano Ferri
- Department of Biotechnology & Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Wakako Tsugawa
- Department of Biotechnology & Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Koji Sode
- Department of Biotechnology & Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan Ultizyme International Ltd, Tokyo, Japan
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Kojima K, Mikami-Sakaguchi A, Kameya M, Miyamoto Y, Ferri S, Tsugawa W, Sode K. Substrate specificity engineering of Escherichia coli derived fructosamine 6-kinase. Biotechnol Lett 2012; 35:253-8. [DOI: 10.1007/s10529-012-1062-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Accepted: 10/04/2012] [Indexed: 11/30/2022]
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Kim S, Ferri S, Tsugawa W, Mori K, Sode K. Motif-based search for a novel fructosyl peptide oxidase from genome databases. Biotechnol Bioeng 2010; 106:358-66. [PMID: 20198658 DOI: 10.1002/bit.22710] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The measurement of glycated hemoglobin A1c (HbA1c) has important implications for diagnosis of diabetes and assessment of treatment effectiveness. We proposed specific sequence motifs to identify enzymes that oxidize glycated compounds from genome database searches. The gene encoding a putative fructosyl amino acid oxidase was found in the Phaeosphaeria nodorum SN15 genome and successfully expressed in Escherichia coli. The recombinant protein (XP_001798711) was confirmed to be a novel fructosyl peptide oxidase (FPOX) with high specificity for alpha-glycated compounds, such as HbA1c model compounds fructosyl-(alpha)N-valine (f-(alpha)Val) and fructosyl-(alpha)N-valyl-histidine (f-(alpha)Val-His). Unlike previously reported FPOXs, the P. nodorum FPOX has a K(m) value for f-(alpha)Val-His (0.185 mM) that is considerably lower than that for f-(alpha)Val (0.458 mM). Based on amino acid sequence alignment, three dimensional structural modeling, and site-directed mutagenesis, Gly60 was found to be a determining residue for the activity towards f-(alpha)Val-His. A flexible surface loop region was also found to likely play an important role in accepting f-(alpha)Val-His.
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Affiliation(s)
- Seungsu Kim
- Department of Biotechnology, Tokyo University of Agriculture and Technology, Koganei-shi, Japan
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Occurrence, characteristics, and applications of fructosyl amine oxidases (amadoriases). Appl Microbiol Biotechnol 2010; 86:1613-9. [DOI: 10.1007/s00253-010-2523-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Revised: 02/23/2010] [Accepted: 02/24/2010] [Indexed: 10/19/2022]
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Ferri S, Kim S, Tsugawa W, Sode K. Review of fructosyl amino acid oxidase engineering research: a glimpse into the future of hemoglobin A1c biosensing. J Diabetes Sci Technol 2009; 3:585-92. [PMID: 20144298 PMCID: PMC2769878 DOI: 10.1177/193229680900300324] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Glycated proteins, particularly glycated hemoglobin A1c, are important markers for assessing the effectiveness of diabetes treatment. Convenient and reproducible assay systems based on the enzyme fructosyl amino acid oxidase (FAOD) have become attractive alternatives to conventional detection methods. We review the available FAOD-based assays for measurement of glycated proteins as well as the recent advances and future direction of FAOD research. Future research is expected to lead to the next generation of convenient, simple, and economical sensors for glycated protein, ideally suited for point-of-care treatment and self-monitoring applications.
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Affiliation(s)
- Stefano Ferri
- Department of Biotechnology, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Japan
| | - Seungsu Kim
- Department of Biotechnology, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Japan
| | - Wakako Tsugawa
- Department of Biotechnology, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Japan
- Department of Technology Risk Management, Graduate School of Technology Management, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Koji Sode
- Department of Biotechnology, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Japan
- Department of Technology Risk Management, Graduate School of Technology Management, Tokyo University of Agriculture and Technology, Tokyo, Japan
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Kim S, Miura S, Ferri S, Tsugawa W, Sode K. Cumulative effect of amino acid substitution for the development of fructosyl valine-specific fructosyl amine oxidase. Enzyme Microb Technol 2009. [DOI: 10.1016/j.enzmictec.2008.09.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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YAMAZAKI T, OHTA S, SODE K. Operational Condition of a Molecular Imprinting Catalyst-based Fructosyl-valine Sensor. ELECTROCHEMISTRY 2008. [DOI: 10.5796/electrochemistry.76.590] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Miura S, Ferri S, Tsugawa W, Kim S, Sode K. Active site analysis of fructosyl amine oxidase using homology modeling and site-directed mutagenesis. Biotechnol Lett 2006; 28:1895-900. [PMID: 17043907 DOI: 10.1007/s10529-006-9173-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2006] [Accepted: 07/27/2006] [Indexed: 10/24/2022]
Abstract
A three-dimensional structural model of fructosyl amine oxidase from the marine yeast Pichia N1-1 was generated using the crystal structure of monomeric sarcosine oxidase from Bacillus sp. B-0618 as template. The putative active site region was investigated by site-directed mutagenesis, identifying several amino acid residues likely playing important roles in the enzyme reaction. Asn354 was identified as a residue that plays an important role in substrate recognition and that can be substituted in order to change substrate specificity while maintaining high catalytic activity. While the Asn354Ala substitution had no effect on the V (max) K (m) (-1) value for fructosyl valine, the V (max) K (m) (-1) value for fructosyl-(epsilon) N-lysine was decreased 3-fold, thus resulting in a 3-fold improvement in specificity for fructosyl valine over fructosyl-(epsilon) N-lysine.
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Affiliation(s)
- Seiji Miura
- Department of Biotechnology, Tokyo University of Agriculture and Technology , Naka-cho, Koganei, Tokyo, Japan
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Sakaguchi A, Ferri S, Tsugawa W, Sode K. Novel fluorescent sensing system for alpha-fructosyl amino acids based on engineered fructosyl amino acid binding protein. Biosens Bioelectron 2006; 22:1933-8. [PMID: 17015009 DOI: 10.1016/j.bios.2006.08.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2006] [Revised: 08/10/2006] [Accepted: 08/14/2006] [Indexed: 10/24/2022]
Abstract
A novel fluorescent sensing system for alpha-glycated amino acids was created based on fructosyl amino acid binding protein (FABP) from Agrobacterium tumefaciens. The protein was found to bind specifically to the alpha-glycated amino acids fructosyl glutamine (Fru-Gln) and fructosyl valine (Fru-Val) while not binding to epsilon-fructosyl lysine. An Ile166Cys mutant of FABP was created by genetic engineering and modified with the environmentally sensitive fluorophore acrylodan. The acrylodan-conjugated mutant FABP showed eight-fold greater sensitivity to Fru-Val than the unconjugated protein and could detect concentrations as low as 17 nM, making it over 100-fold more sensitive than enzyme-based detection systems. Its high sensitivity and specificity for alpha-substituted fructosyl amino acids makes the new sensing system ideally suited for the measurement of hemoglobin A1c (HbA1c), a major marker of diabetes.
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Affiliation(s)
- Akane Sakaguchi
- Department of Biotechnology, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
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14
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Ferri S, Miura S, Sakaguchi A, Ishimura F, Tsugawa W, Sode K. Cloning and expression of fructosyl-amine oxidase from marine yeast Pichia species N1-1. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2004; 6:625-32. [PMID: 15883867 DOI: 10.1007/s10126-004-0001-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2004] [Accepted: 03/27/2004] [Indexed: 05/02/2023]
Abstract
The gene encoding the fructosyl-amine oxidase (FAOD) from the marine yeast Pichia sp. N1-1 was cloned and expressed in Escherichia coli. Partial amino acid sequence analysis of the Pichia sp. N1-1 FAOD allowed the design of oligonucleotide primers for the amplification of the gene by inverse polymerase chain reaction. The FAOD gene was found to be devoid of introns and to encode a 48-kDa protein composed of 429 amino acid residues. The FAD-binding consensus sequence GXGXXG: and the FAD covalent attachment-site cysteine residue have been identified within the predicted amino acid sequence. Comparisons with the amino acid sequences of other eukaryotic FAODs showed only 30% to 40% identities, establishing that the isolated Pichia N1-1 gene encodes a unique FAOD. Recombinant FAOD expression levels in E. coli reached 0.48 U/mg of soluble protein, which is considerably greater than native expression levels by inducing Pichia sp. N1-1 with fructosyl-valine (f-Val). The kinetic properties of the recombinant enzyme were almost indistinguishable from those of the native enzyme. We previously reported on the construction of a number of effective Pichia sp. N1-1 FAOD-based biosensors for measuring f-Val, a model compound for glycated hemoglobin. The further development of these biosensor systems can now greatly benefit from protein engineering and recombinant expression of the FAOD from Pichia N1-1.
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Affiliation(s)
- Stefano Ferri
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
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SAKAGUCHI A, TSUGAWA W, FERRI S, SODE K. Development of Highly-sensitive Fructosyl-valine Enzyme Sensor Employing Recombinant Fructosyl Amine Oxidase. ELECTROCHEMISTRY 2003. [DOI: 10.5796/electrochemistry.71.442] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Akane SAKAGUCHI
- Department of Biotechnology, Tokyo University of Agriculture and Technology
| | - Wakako TSUGAWA
- Department of Biotechnology, Tokyo University of Agriculture and Technology
| | - Stefano FERRI
- Department of Biotechnology, Tokyo University of Agriculture and Technology
| | - Koji SODE
- Department of Biotechnology, Tokyo University of Agriculture and Technology
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Qin W, Parzuchowski P, Zhang W, Meyerhoff ME. Optical sensor for amine vapors based on dimer-monomer equilibrium of indium(III) octaethylporphyrin in a polymeric film. Anal Chem 2003; 75:332-40. [PMID: 12553770 DOI: 10.1021/ac0205356] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel transduction chemistry for the development of a polymer film-based optical sensor that responds reversibly to gas-phase amine species at sub-ppm levels is described. The sensor is based on the equilibrium of a indium(III) octaethylporphyrin hydroxide ion-bridged dimer species with corresponding monomeric porphyrins within a thin poly(vinyl chloride) film as a function of the level of volatile amine in the surrounding gas phase. The presence of amines causes the dimeric species to be converted to monomer via the ligation of the amine with the In(III) center of the porphyrin structure. This yields a significant change in the visible absorption spectrum of the film, with a decrease in the intensity of the Soret band corresponding to the dimer (lambdamax = 390 nm) and a concomitant increase in the Soret band for the monomer lambdamax = 406-408 nm). Response to different amines is based on their relative partition coefficient into the polymer film and their strength of axial ligation reactions, with a selectivity pattern of 1-butylamine > 1-propylamine > pyridine > triethylamine > ethylamine > methylamine > diethylamine > tert-butylamine > ammonia. It is further shown that a significant concentration of dimeric species within the polymer film can only be achieved if appropriate amounts of lipophilic anionic sites are also incorporated into the polymer in the form of a tetraphenylborate derivative and the resulting film is equilibrated briefly with water prior to gas-phase measurements. With optimized film compositions, 1-butylamine can be detected in the gas phase to levels approaching 0.1 ppm, while less lipophilic ammonia can be monitored down to 10 ppm, with fully reversible responses to each species. A simple mathematical model for the response of the amine sensor is presented and shown to predict the optical behavior observed.
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Affiliation(s)
- Wei Qin
- Department of Chemistry, The University of Michigan, Ann Arbor, Michigan 48109-1055, USA
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