1
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Toldrà A, Chondrogiannis G, Hamedi MM. A 3D paper microfluidic device for enzyme-linked assays: Application to DNA analysis. Biotechnol J 2023; 18:e2300143. [PMID: 37222181 DOI: 10.1002/biot.202300143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 03/31/2023] [Accepted: 05/17/2023] [Indexed: 05/25/2023]
Abstract
A paper microfluidic device capable of conducting enzyme-linked assays is presented: a microfluidic enzyme-linked paper analytical device (μEL-PAD). The system exploits a wash-free sandwich coupling to form beads/analyte/enzyme complexes, which are subsequently added to the vertical flow device composed of wax-printed paper, waxed nitrocellulose membrane and absorbent/barrier layers. The nitrocellulose retains the bead complexes without disrupting the flow, enabling for an efficient washing step. The entrapped complexes then interact with the chromogenic substrate stored on the detection paper, generating a color change on it, quantified with an open-source smartphone software. This is a universal paper-based technology suitable for high-sensitivity quantification of many analytes, such as proteins or nucleic acids, with different enzyme-linked formats. Here, the potential of the μEL-PAD is demonstrated to detect DNA from Staphylococcus epidermidis. After generation of isothermally amplified genomic DNA from bacteria, Biotin/FITC-labeled products were analyzed with the μEL-PAD, exploiting streptavidin-coated beads and antiFITC-horseradish peroxidase. The μEL-PAD achieved a limit of detection (LOD) and quantification <10 genome copies/μL, these being at least 70- and 1000-fold lower, respectively, than a traditional lateral flow assay (LFA) exploiting immobilized streptavidin and antiFITC-gold nanoparticles. It is envisaged that the device will be a good option for low-cost, simple, quantitative, and sensitive paper-based point-of-care testing.
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Affiliation(s)
- Anna Toldrà
- School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Georgios Chondrogiannis
- School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Mahiar M Hamedi
- School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
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2
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Hashtrodylar Y, Rabbani S, Dadashzadeh S, Haeri A. Berberine-phospholipid nanoaggregate-embedded thiolated chitosan hydrogel for aphthous stomatitis treatment. Nanomedicine (Lond) 2023; 18:1227-1246. [PMID: 37712555 DOI: 10.2217/nnm-2023-0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023] Open
Abstract
Aim: This study aimed to develop nanoaggregates of berberine-phospholipid complex incorporated into thiolated chitosan (TCS) hydrogel for the treatment of aphthous stomatitis. Methods: The berberine-phospholipid complex was formulated through the solvent evaporation technique and assembled into nanoaggregates. TCS was synthesized through the attachment of thioglycolic acid to chitosan (CS). Nanoaggregates-TCS was prepared by the incorporation of nanoaggregates into TCS and underwent in vitro and in vivo tests. Results: Nanoaggregates-TCS exhibited prolonged release of berberine. The mucoadhesive strength of nanoaggregates-TCS increased 1.75-fold compared with CS hydrogel. In vivo studies revealed the superior therapeutic efficacy of nanoaggregates-TCS compared with that of other groups. Conclusion: Due to prolonged drug release, appropriate residence time and anti-inflammatory effects, nanoaggregates-TCS is an effective system for the treatment of aphthous stomatitis.
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Affiliation(s)
- Yasaman Hashtrodylar
- Department of Pharmaceutics & Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, 1996835113, Tehran, Iran
| | - Shahram Rabbani
- Research Center for Advanced Technologies in Cardiovascular Medicine, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, 1313814117, Tehran, Iran
| | - Simin Dadashzadeh
- Department of Pharmaceutics & Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, 1996835113, Tehran, Iran
| | - Azadeh Haeri
- Department of Pharmaceutics & Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, 1996835113, Tehran, Iran
- Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, 1996835113, Tehran, Iran
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3
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Wu Y, Lu K, Pei F, Yan Y, Feng S, Hao Q, Xia M, Lei W. Construction of g-C3N4/Au/NH2-UiO-66 Z-scheme heterojunction for label-free photoelectrochemical recognition of D-penicillamine. Talanta 2022; 248:123617. [DOI: 10.1016/j.talanta.2022.123617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 05/05/2022] [Accepted: 05/25/2022] [Indexed: 01/23/2023]
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4
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Li H, Fang T, Tan QG, Ma J. Development of a versatile smartphone-based environmental analyzer (vSEA) and its application in on-site nutrient detection. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156197. [PMID: 35623512 DOI: 10.1016/j.scitotenv.2022.156197] [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: 03/31/2022] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
The citizen-science-based environmental survey can benefit from the smartphone technology used in chemical and biological sensing of a wide range of analytes. Quantification by smartphone-based colorimetric assays is being increasingly reported, however, most of the quantification uses empirical formula or complex exhaustive methods. In this study, a versatile and robust algorithm is proposed to overcome these limitations. A model is established to simulate and analyze the conversion process from the camera's spectral information into RGB (Red, Green, Blue) color information. Moreover, the feasibility of the algorithm for the quantification of different analytes is also explored. Based on this algorithm, a versatile smartphone-based environmental analyzer (vSEA) is built and its reliability, versatility, and analytical performance are comprehensively optimized. The good linearity (R2 ≥ 0.9954) and precision (relative standard deviations < 5.3%) indicates that the vSEA is accurate enough to quantify the nutrients in most natural waters. Furthermore, the vSEA is used for the field measurement of five important nutrients, and the results show no significant difference compared to conventional methods. The vSEA offers a simpler and easier method for the on-site measurement of nutrients in natural water bodies, which can aid in the emergency monitoring of aqueous ecosystems and the performance of citizen-science-based research.
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Affiliation(s)
- Hangqian Li
- State Key Laboratory of Marine Environmental Science, National Observation and Research Station for the Taiwan Strait Marine Ecosystem, College of the Environment and Ecology, Xiamen University, Xiamen 361102, People's Republic of China
| | - Tengyue Fang
- State Key Laboratory of Marine Environmental Science, National Observation and Research Station for the Taiwan Strait Marine Ecosystem, College of the Environment and Ecology, Xiamen University, Xiamen 361102, People's Republic of China
| | - Qiao-Guo Tan
- State Key Laboratory of Marine Environmental Science, National Observation and Research Station for the Taiwan Strait Marine Ecosystem, College of the Environment and Ecology, Xiamen University, Xiamen 361102, People's Republic of China
| | - Jian Ma
- State Key Laboratory of Marine Environmental Science, National Observation and Research Station for the Taiwan Strait Marine Ecosystem, College of the Environment and Ecology, Xiamen University, Xiamen 361102, People's Republic of China.
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5
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Procida A, Honeychurch KC. Smartphone‐based colorimetric determination of gamma‐butyrolactone and gamma‐hydroxybutyrate in alcoholic beverage samples. J Forensic Sci 2022; 67:1697-1703. [PMID: 35368091 PMCID: PMC9324852 DOI: 10.1111/1556-4029.15042] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 03/07/2022] [Accepted: 03/22/2022] [Indexed: 12/01/2022]
Abstract
Gamma‐hydroxybutyrate (GBH) is a popular recreational drug. Its strong sedative and amnesic effects have led to drug‐facilitated sexual assaults, poisonings, overdose, and death. As a result, legislation has restricted its availability leading to GHB, consumers switching to its pro‐drug, gamma‐butyrolactone (GBL). Consequently, there is a growing need for methods capable of their determination in complex samples such as beverages. Previous studies have shown the possibility to colorimetrically qualitatively determine both GBH and GBL by the formation of the lactone and its reaction with hydroxylamine and ferric chloride to give a purple‐colored complex. In this present investigation, we have shown the possibility of using this approach to both quantify GBL and GHB using both UV/Vis spectrometry and by the application of the camera of a smartphone to record images of the purple color developed. Via subsequent use of a downloadable free App, to extract the numerical values of the Red, Green, and Blue (RGB) color components, it was shown possible to construct a calibration curve and to quantitatively determine the concentration of the drugs present in fortified alcoholic beverage samples. It was found that by simple mathematical normalization of the RGB values the effects of camera distance and elimination could be readily overcome. Using the smartphone approach, GBL determinations on a sample of lager beer gave a mean recovery of 103% (%CV = 0.70%, n = 5) at a concentration of 0.56 mg/ml indicating the method holds promise for the determination of GBL and GHB in such samples.
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Affiliation(s)
- Anselmo Procida
- Department of Applied Sciences, Faculty of Health and Applied Sciences University of the West of England Bristol UK
| | - Kevin C. Honeychurch
- Department of Applied Sciences, Faculty of Health and Applied Sciences University of the West of England Bristol UK
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6
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Ruttanakorn K, Phadungcharoen N, Laiwattanapaisal W, Chinsriwongkul A, Rojanarata T. Smartphone-based technique for the determination of a titration equivalence point from an RGB linear-segment curve with an example application to miniaturized titration of sodium chloride injections. Talanta 2021; 233:122602. [PMID: 34215090 DOI: 10.1016/j.talanta.2021.122602] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 12/29/2022]
Abstract
A smartphone-based technique for determining the titration equivalence point from a linear-segment curve was developed for the first time. In this method, a titrant in an increasing microliter-volume was added to a set of sample aliquots containing an indicator covering both sides of the equivalence point. The solutions were subsequently photographed in one shot, in a dark box using a smartphone camera and an illuminating screen of a tablet or light emitting diode lamps arranged below a white acrylic sheet as a light source. After the colors of the solutions were delineated to Red, Green, and Blue (RGB) values, 1/log G was used to construct a plot in which the equivalence point was located at the intersection of the two lines in the region before and after the equivalence point. The technique was successfully applied to the miniaturized titration of sodium chloride injections, showing the good linear relationship of equivalence points to the sodium chloride concentration in the range of 0.4163-0.9675% w/v (R2 of 0.9998). The assay was accurate (% recovery of 98.92-100.52), precise (% relative standard deviation ≤ 1.20), and unaffected by the use of different types of microplates, smartphones, and RGB analysis tools. Additionally, it required no expensive nor complicated equipment and offered the possibility of performing analysis on a single smartphone device when it was used with a mobile application developed to aid data processing and immediate production of reports of analytical results.
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Affiliation(s)
- Kanong Ruttanakorn
- Pharmaceutical Development of Green Innovations Group (PDGIG) and Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Silpakorn University, Sanam Chandra Palace Campus, Nakhon Pathom, 73000, Thailand
| | - Noppharat Phadungcharoen
- Pharmaceutical Development of Green Innovations Group (PDGIG) and Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Silpakorn University, Sanam Chandra Palace Campus, Nakhon Pathom, 73000, Thailand
| | - Wanida Laiwattanapaisal
- Biosensors and Bioanalytical Technology for Cells and Innovative Testing Device Research Unit, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | | | - Theerasak Rojanarata
- Pharmaceutical Development of Green Innovations Group (PDGIG) and Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Silpakorn University, Sanam Chandra Palace Campus, Nakhon Pathom, 73000, Thailand.
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7
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Koohkan R, Kaykhaii M, Sasani M, Paull B. Fabrication of a Smartphone-Based Spectrophotometer and Its Application in Monitoring Concentrations of Organic Dyes. ACS OMEGA 2020; 5:31450-31455. [PMID: 33324857 PMCID: PMC7726945 DOI: 10.1021/acsomega.0c05123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 11/04/2020] [Indexed: 06/12/2023]
Abstract
In this study, an in-house constructed paper-based spectrophotometer is presented and demonstrated for detecting three organic dyes, namely, methylene blue, malachite green, and rhodamine B, and monitoring the efficiency of their removal from a wastewater sample with Sistan sand as a costless adsorbent. The compact design and light weight of this simple spectrophotometer delivered portability, with materials costing less than a dollar. Spectral analysis of the captured images was performed using free downloadable software from the Google Play store. The main experimental parameters affecting the efficiency of dye adsorption including pH, sorbent dosage, initial dye concentration, and contact time were investigated and optimized using the Taguchi design experimental method. Validation experiments were performed using a standard commercial bench-top spectrophotometer, and results were compared in terms of analytical performance, speed, and cost of analysis. The smartphone-based spectrometer was able to measure accurately, as confirmed using the commercial spectrometer, with enhanced sensitivity for methylene blue and rhodamine B. The combination of the high spectral accuracy of the paper-based spectrophotometer, together with sand as a readily accessible sorbent, enabled us to develop a powerful yet simple approach and tool for the removal and monitoring of dyes within wastewater samples, which is potentially available to everybody who owns a smartphone.
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Affiliation(s)
- Razieh Koohkan
- Faculty of Dentistry, Zahedan University of Medical Sciences, Zahedan 98135, Iran
| | - Massoud Kaykhaii
- Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan 98155-674, Iran
- Smartphone Analytical Sensors Research
Centre, University of Sistan and Baluchestan, Zahedan 98135-674, Iran
| | - Mojtaba Sasani
- Research Laboratory of Spectrometry &
Micro and Nano Extraction, Department of Chemistry, Iran University of Science and Technology, Narmak, Tehran 16844, Iran
- Young Researchers and Elite Club, Zahedan Branch, Islamic Azad University, Zahedan 1584743311, Iran
| | - Brett Paull
- Australian Centre for Research on Separation Science
(ACROSS), School of Natural Sciences, University
of Tasmania, Private Bag 75, Hobart, TAS 7001, Australia
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8
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Phadungcharoen N, Pengwanput N, Nakapan A, Sutitaphan U, Thanomklom P, Jongudomsombut N, Chinsriwongkul A, Rojanarata T. Ion pair extraction coupled with digital image colorimetry as a rapid and green platform for pharmaceutical analysis: An example of chlorpromazine hydrochloride tablet assay. Talanta 2020; 219:121271. [DOI: 10.1016/j.talanta.2020.121271] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/02/2020] [Accepted: 06/02/2020] [Indexed: 12/22/2022]
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9
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Tong F, Ye Y, Chen B, Gao J, Liu L, Ou J, van Hest JCM, Liu S, Peng F, Tu Y. Bone-Targeting Prodrug Mesoporous Silica-Based Nanoreactor with Reactive Oxygen Species Burst for Enhanced Chemotherapy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:34630-34642. [PMID: 32635715 DOI: 10.1021/acsami.0c08992] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cancer remains a primary threat to human lives. Recently, amplification of tumor-associated reactive oxygen species (ROS) has been used as a boosting strategy to improve tumor therapy. Here, we report on a bone-targeting prodrug mesoporous silica-based nanoreactor for combined photodynamic therapy (PDT) and enhanced chemotherapy for osteosarcoma. Because of surface modification of a bone-targeting biphosphate moiety and the enhanced permeability and retention effect, the formed nanoreactor shows efficient accumulation in osteosarcoma and exhibits long-term retention in the tumor microenvironment. Upon laser irradiation, the loaded photosensitizer chlorin e6 (Ce6) produces in situ ROS, which not only works for PDT but also functions as a trigger for controlled release of doxorubicin (DOX) and doxycycline (DOXY) from the prodrugs based on a thioketal (TK) linkage. The released DOXY further promotes ROS production, thus perpetuating subsequent DOX/DOXY release and ROS burst. The ROS amplification induces long-term high oxidative stress, which increases the sensitivity of the osteosarcoma to chemotherapy, therefore resulting in enhanced tumor cell inhibition and apoptosis. The as-developed nanoreactor with combined PDT and enhanced chemotherapy based on ROS amplification shows significant promise as a potential platform for cancer treatment.
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Affiliation(s)
- Fei Tong
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Yicheng Ye
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Bin Chen
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Junbin Gao
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Lu Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Juanfeng Ou
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Jan C M van Hest
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven 5600 MB, The Netherlands
| | - Shuwen Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Fei Peng
- School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yingfeng Tu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China
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10
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Federer C, Kurpiers M, Bernkop-Schnürch A. Thiolated Chitosans: A Multi-talented Class of Polymers for Various Applications. Biomacromolecules 2020; 22:24-56. [PMID: 32567846 PMCID: PMC7805012 DOI: 10.1021/acs.biomac.0c00663] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Various properties of chitosan can be customized by thiolation for very specific needs in a wide range of application areas. Since the discovery of thiolated chitosans, many studies have proven their advantageous characteristics, such as adhesion to biological surfaces, adjustable cross-linking and swelling behavior, controllable drug release, permeation as well as cellular uptake enhancement, inhibition of efflux pumps and enzymes, complexation of metal ions, antioxidative properties, and radical scavenging activity. Simultaneously, these polymers remain biodegradable without increased toxicity. Within this Review, an overview about the different possibilities to covalently attach sulfhydryl ligands to the polymeric backbone of chitosan is given, and the resulting versatile physiochemical properties are discussed in detail. Furthermore, the broad spectrum of applications for thiolated chitosans in science and industry, ranging from their most advanced use in pharmaceutical and medical science over wastewater treatment to the impregnation of textiles, is addressed.
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Affiliation(s)
- Christoph Federer
- Thiomatrix Forschungs-und Beratungs GmbH, Trientlgasse 65, 6020 Innsbruck, Austria.,Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Markus Kurpiers
- Thiomatrix Forschungs-und Beratungs GmbH, Trientlgasse 65, 6020 Innsbruck, Austria.,Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Andreas Bernkop-Schnürch
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
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11
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A smartphone-based bioassay for determining relative potency estimated from sigmoidal-response curves and respective measurement uncertainty. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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12
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Wang Q, Li L, Wu T, Kong X, Ma Q, Ma C. A graphene quantum dots-Pb 2+ based fluorescent switch for selective and sensitive determination of D-penicillamine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117924. [PMID: 31839577 DOI: 10.1016/j.saa.2019.117924] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/30/2019] [Accepted: 12/06/2019] [Indexed: 06/10/2023]
Abstract
Taking consideration of metal-induced fluorescence quenching and excellent coordination effect of D-penicillamine (D-PA), a graphene quantum dots (GQDs)-based fluorescent switch for D-PA detection was designed and established firstly with the help of lead ions. GQDs obtained from citric acids made them rich in carboxyl and hydroxyl groups, giving GQDs the ability to combine with lead ions. As anticipated, the fluorescence intensity was quenched by Pb2+ through electron transfer process. Further, the addition of D-PA effectively recovered the fluorescence due to the departure of Pb2+ from GQDs aroused by the strong coordination between D-PA and Pb2+. Thus, a fluorescent switch was activated for D-PA detection. The fluorescence recovery efficiencies were found to be proportional to the concentration of D-PA in the range of 0.6-50 μmol L-1 and the detection limit was 0.47 μmol L-1. The real sample detection was performed in human urea sample and satisfactory recoveries of 96.84%-102.13% were obtained. The GQDs-Pb2+ based fluorescent switch sensing method was firstly established with low detection limit and wide linear range, making it a supplement and improvement for D-PA detection.
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Affiliation(s)
- Qi Wang
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, Shanxi 030008, China.
| | - Lingfang Li
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, Shanxi 030008, China
| | - Tingxuan Wu
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, Shanxi 030008, China
| | - Xiangpeng Kong
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, Shanxi 030008, China
| | - Qingguo Ma
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, Shanxi 030008, China
| | - Chunlei Ma
- Chemistry & Chemical Engineering Department, Taiyuan Institute of Technology, Taiyuan, Shanxi 030008, China.
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13
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Determination of Ethanol in Beers Using a Flatbed Scanner and Automated Digital Image Analysis. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01611-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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14
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Copper nanocluster‐based fluorescence enhanced determination of
d
‐penicillamine. LUMINESCENCE 2019; 34:767-773. [DOI: 10.1002/bio.3672] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 05/23/2019] [Accepted: 06/01/2019] [Indexed: 12/14/2022]
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15
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Casian T, Farkas A, Ilyés K, Démuth B, Borbás E, Madarász L, Rapi Z, Farkas B, Balogh A, Domokos A, Marosi G, Tomută I, Nagy ZK. Data fusion strategies for performance improvement of a Process Analytical Technology platform consisting of four instruments: An electrospinning case study. Int J Pharm 2019; 567:118473. [PMID: 31252149 DOI: 10.1016/j.ijpharm.2019.118473] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 06/24/2019] [Accepted: 06/25/2019] [Indexed: 12/25/2022]
Abstract
The aim of this work was to develop a PAT platform consisting of four complementary instruments for the characterization of electrospun amorphous solid dispersions with meloxicam. The investigated methods, namely NIR spectroscopy, Raman spectroscopy, Colorimetry and Image analysis were tested and compared considering the ability to quantify the active pharmaceutical ingredient and to detect production errors reflected in inhomogeneous deposition of fibers. Based on individual performance the calculated RMSEP values ranged between 0.654% and 2.292%. Mid-level data fusion consisting of data compression through latent variables and application of ANN for regression purposes proved efficient, yielding an RMSEP value of 0.153%. Under these conditions the model could be validated accordingly on the full calibration range. The complementarity of the PAT tools, demonstrated from the perspective of captured variability and outlier detection ability, contributed to model performance enhancement through data fusion. To the best of the author's knowledge, this is the first application of data fusion in the field of PAT for efficient handling of big-analytical-data provided by high-throughput instruments.
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Affiliation(s)
- Tibor Casian
- Department of Pharmaceutical Technology and Biopharmacy, "Iuliu Hatieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania.
| | - Attila Farkas
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Kinga Ilyés
- Department of Pharmaceutical Technology and Biopharmacy, "Iuliu Hatieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Balázs Démuth
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Enikő Borbás
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Lajos Madarász
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Zsolt Rapi
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Balázs Farkas
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Attila Balogh
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - András Domokos
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - György Marosi
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
| | - Ioan Tomută
- Department of Pharmaceutical Technology and Biopharmacy, "Iuliu Hatieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Zsombor Kristóf Nagy
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
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