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Narayan SM, Wan EY, Andrade JG, Avari Silva JN, Bhatia NK, Deneke T, Deshmukh AJ, Chon KH, Erickson L, Ghanbari H, Noseworthy PA, Pathak RK, Roelle L, Seiler A, Singh JP, Srivatsa UN, Trela A, Tsiperfal A, Varma N, Yousuf OK. Visions for digital integrated cardiovascular care: HRS Digital Health Committee perspectives. CARDIOVASCULAR DIGITAL HEALTH JOURNAL 2024; 5:37-49. [PMID: 38765620 PMCID: PMC11096652 DOI: 10.1016/j.cvdhj.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024] Open
Affiliation(s)
| | - Elaine Y Wan
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York
| | | | | | | | | | | | - Ki H Chon
- University of Connecticut, Storrs, Connecticut
| | | | | | | | | | - Lisa Roelle
- Washington University School of Medicine, Saint Louis, Missouri
| | | | - Jagmeet P Singh
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | | | - Anthony Trela
- Lucile Packard Children's Hospital, Palo Alto, California
| | - Angela Tsiperfal
- Stanford Arrhythmia Service, Stanford Healthcare, Palo Alto, California
| | | | - Omair K Yousuf
- Inova Heart and Vascular Institute; Carient Heart and Vascular; and University of Virginia Health, Fairfax, Virginia
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Zhang M, Liu J, Wang N, Zhang B, Gao F, Wang M, Song Q. High-precision sensor for glucose solution using active multidimensional feature THz spectroscopy. BIOMEDICAL OPTICS EXPRESS 2024; 15:1418-1427. [PMID: 38495721 PMCID: PMC10942695 DOI: 10.1364/boe.515588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/04/2024] [Accepted: 01/04/2024] [Indexed: 03/19/2024]
Abstract
Terahertz waves are known for their bio-safety and spectral fingerprinting features, and terahertz spectroscopy technology holds great potential for both qualitative and quantitative identification in the biomedical field. There has been a substantial amount of research utilizing this technology in conjunction with machine learning algorithms for substance identification. However, due to the strong absorption of water for terahertz waves, the single-dimensional features of the sample become indistinct, thereby diminishing the efficiency of the algorithmic recognition. Building upon this, we propose a method that employs terahertz time-domain spectroscopy (THz-TDS) in conjunction with multidimensional feature spectrum identification for the detection of blood sugar and glucose mixtures. Our research indicates that combining THz-TDS with multidimensional feature spectrum and linear discriminant analysis (LDA) algorithms can effectively identify glucose concentrations and detect adulteration. By integrating the multidimensional feature spectrum, the identification success rate increased from 68.9% to 96.0%. This method offers an economical, rapid, and safe alternative to traditional methods and can be applied in blood sugar monitoring, sweetness assessment, and food safety.
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Affiliation(s)
- Min Zhang
- Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, The State Key Laboratory of Transient Optics and Photonics, Shenzhen University, Shenzhen 518060, China
| | - Jiarui Liu
- Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, The State Key Laboratory of Transient Optics and Photonics, Shenzhen University, Shenzhen 518060, China
| | - Nan Wang
- Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, The State Key Laboratory of Transient Optics and Photonics, Shenzhen University, Shenzhen 518060, China
| | - Bingyuan Zhang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, 252059, China
| | - Feilong Gao
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, 252059, China
| | - Minghong Wang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, 252059, China
| | - Qi Song
- Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, The State Key Laboratory of Transient Optics and Photonics, Shenzhen University, Shenzhen 518060, China
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, 252059, China
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3
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Li A, Li X, Xu Y, Wu C, Geng Z, Zhang J, Wang X, Li Y, Li H, Guo X, Tang F. Evaluating the Clinical Accuracy of a Non-invasive Single-Fasting-Calibration Glucometer in Patients with Diabetes: A Multicentre Study. Diabetes Ther 2023; 14:989-1004. [PMID: 37103775 DOI: 10.1007/s13300-023-01402-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 03/23/2023] [Indexed: 04/28/2023] Open
Abstract
INTRODUCTION The aim of this study was to evaluate the stability and accuracy of glucose measurements determined using the metabolic heat conformation (MHC)-based non-invasive glucometer in a multicentre, self-controlled clinical trial. This device is the first to obtain a medical device registration certificate awarded by the National Medical Products Administration of China (NMPA). METHODS The multicentre clinical study was conducted at three sites and enrolled 200 subjects whose glucose was measured with a non-invasive glucometer (the Contour Plus blood glucose monitoring system) and by venous plasma glucose (VPG) measurements, in a fasted state and at 2 and 4 h after meals. RESULTS Based on both the non-invasive and VPG measurements, 93.9% (95% confidence interval 91.7-95.6%) of the blood glucose (BG) values fell within consensus error grid (CEG) zones A + B. The measurements obtained in a fasted state and at 2 h after meals were more accurate, with 99.0% and 97.0% of the BG values, respectively, falling within zones A + B. Compared to those subjects who received insulin, the proportion of values in zones A + B and the correlation coefficients were 3.1% and 0.0596 higher, respectively. The accuracy of the non-invasive glucometer was influenced by the level of insulin resistance calculated by the homeostatic model assessment method, which had a correlation coefficient with the mean absolute relative difference of - 0.1588 (P = 0.0001). CONCLUSION The MHC-based non-invasive glucometer assessed in the present study demonstrates generally high stability and accuracy in the glucose monitoring of people with diabetes. The calculation model needs to be further explored and optimised for patients with different diabetes subtypes, levels of insulin resistance and insulin secretion capacity. CLINICAL TRIAL REGISTRY NUMBER ChiCTR1900020523.
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Affiliation(s)
- Ang Li
- Department of Endocrinology, Peking University First Hospital, Beijing, 100034, China
| | - Xiang Li
- Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing, 100084, China
| | - Yuanmeng Xu
- Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing, 100084, China
| | - Chenyang Wu
- Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing, 100084, China
| | - Zhanxiao Geng
- Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing, 100084, China
| | - Junqing Zhang
- Department of Endocrinology, Peking University First Hospital, Beijing, 100034, China
| | - Xiaohao Wang
- Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing, 100084, China
| | - Yuxiu Li
- Department of Endocrinology, Key Laboratory of Endocrinology of the Ministry of Health, Peking Union Medical College Hospital, Peking Union Medical College and the Chinese Academy of Medical Sciences, Beijing, China
| | - Hongmei Li
- Department of Endocrinology, China Emergency General Hospital, Beijing, China
| | - Xiaohui Guo
- Department of Endocrinology, Peking University First Hospital, Beijing, 100034, China.
| | - Fei Tang
- Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing, 100084, China.
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Guan Y, Liu L, Yu S, Lv F, Guo M, Luo Q, Zhang S, Wang Z, Wu L, Lin Y, Liu G. A Noninvasive Sweat Glucose Biosensor Based on Glucose Oxidase/Multiwalled Carbon Nanotubes/Ferrocene-Polyaniline Film/Cu Electrodes. MICROMACHINES 2022; 13:mi13122142. [PMID: 36557441 PMCID: PMC9787487 DOI: 10.3390/mi13122142] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/11/2022] [Accepted: 12/01/2022] [Indexed: 06/01/2023]
Abstract
Diabetes remains a great threat to human beings' health and its world prevalence is projected to reach 9.9% by 2045. At present, the detection methods used are often invasive, cumbersome and time-consuming, thus increasing the burden on patients. In this paper, we propose a novel noninvasive and low-cost biosensor capable of detecting glucose in human sweat using enzyme-based electrodes for point-of-care uses. Specifically, an electrochemical method is applied for detection and the electrodes are covered with multilayered films including ferrocene-polyaniline (F-P), multi-walled carbon nanotubes (MWCNTs) and glucose oxidase (GOx) on Cu substrates (GOx/MWCNTs/F-P/Cu). The coated layers enhance the immobilization of GOx, increase the conductivity of the anode and improve the electrochemical properties of the electrode. Compared with the Cu electrode and the F-P/Cu electrode, a maximum peak current is obtained when the MWCNTs/F-P/Cu electrode is applied. We also study its current response by cyclic voltammetry (CV) at different concentrations (0-2.0 mM) of glucose solution. The best current response is obtained at 0.25 V using chronoamperometry. The effective working lifetime of an electrode is up to 8 days. Finally, to demonstrate the capability of the electrode, a portable, miniaturized and integrated detection device based on the GOx/MWCNTs/F-P/Cu electrode is developed. The results exhibit a short response time of 5 s and a correlation coefficient R2 of 0.9847 between the response current of sweat with blood glucose concentration. The LOD is of 0.081 mM and the reproducibility achieved in terms of RSD is 3.55%. The sweat glucose sensor is noninvasive and point-of-care, which shows great development potential in the health examination and monitoring field.
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Affiliation(s)
- Yanfang Guan
- School of Electromechanical Engineering, Henan University of Technology, Zhengzhou 450001, China
- Provincial Key Laboratory of Cereal Resource Transformation and Utilization, Henan University of Technology, Zhengzhou 450001, China
| | - Lei Liu
- School of Electromechanical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Shaobo Yu
- School of Electromechanical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Feng Lv
- School of Electromechanical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Mingshuo Guo
- School of Electromechanical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Qing Luo
- School of Electromechanical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Shukai Zhang
- School of Electromechanical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Zongcai Wang
- School of Electromechanical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Lan Wu
- School of Electromechanical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yang Lin
- Department of Mechanical, Industrial & Systems Engineering, University of Rhode Island, Kingston, RI 02881, USA
| | - Guangyu Liu
- Provincial Key Laboratory of Cereal Resource Transformation and Utilization, Henan University of Technology, Zhengzhou 450001, China
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
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5
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Ahmed ZB, Hefied F, Mahammed TH, Seidel V, Yousfi M. Identification of potential
anti‐Alzheimer
agents from
Pistacia atlantica
Desf. galls using
UPLC
fingerprinting, chemometrics, and molecular docking analyses. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ziyad Ben Ahmed
- Laboratoire des Sciences Fondamentale Université Amar Telidji Laghouat Algérie
- Department of Analytical Chemistry, Applied Chemometrics and Molecular Modelling, Vrije Universiteit Brussel (VUB), Brussels Belgium
| | - Fatiha Hefied
- Laboratoire des Sciences Fondamentale Université Amar Telidji Laghouat Algérie
| | | | - Veronique Seidel
- Natural Products Research Laboratory, Strathclyde Institute of Pharmacy and Biomedical Sciences University of Strathclyde Glasgow UK
| | - Mohamed Yousfi
- Laboratoire des Sciences Fondamentale Université Amar Telidji Laghouat Algérie
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Fuglerud SS, Noh JW, Aksnes A, Roar Hjelme D. Performance improvement in a supercontinuum fiber-coupled system for near infrared absorption spectroscopy. APPLIED OPTICS 2022; 61:2371-2381. [PMID: 35333256 DOI: 10.1364/ao.449908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
Accurate, in-field-compatible, sensing based on near infrared spectroscopy (NIRS) requires development of instrumentation with low noise and long-term stability. Here, we present a fully fiber-optic spectroscopy setup using a supercontinuum source in the long-pulse regime (2 ns) and a balanced detector scheme to demonstrate high-accuracy NIRS-based sensing. The noise sources of the system are studied theoretically and experimentally. The relative intensity noise was reduced from typical values up to 6% to less than 0.1% by deploying a balanced detector and averaging. At well-balanced wavelengths, the system without transmission cells achieved a signal to noise ratio (SNR) above 70 dB, approaching the shot noise limit. With transmission cells and long-term measurements, the overall SNR was 55 dB. Glucose in physiological concentrations was measured as a model system, yielding a root mean square error of 4.8 mM, approaching the needed accuracy for physiological glucose monitoring.
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Srichan C, Srichan W, Danvirutai P, Ritsongmuang C, Sharma A, Anutrakulchai S. Non-invasively accuracy enhanced blood glucose sensor using shallow dense neural networks with NIR monitoring and medical features. Sci Rep 2022; 12:1769. [PMID: 35110583 PMCID: PMC8810809 DOI: 10.1038/s41598-022-05570-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 01/12/2022] [Indexed: 11/24/2022] Open
Abstract
Non-invasive and accurate method for continuous blood glucose monitoring, the self-testing of blood glucose is in quest for better diagnosis, control and the management of diabetes mellitus (DM). Therefore, this study reports a multiple photonic band near-infrared (mbNIR) sensor augmented with personalized medical features (PMF) in Shallow Dense Neural Networks (SDNN) for the precise, inexpensive and pain free blood glucose determination. Datasets collected from 401 blood samples were randomized and trained with ten-fold validation. Additionally, a cohort of 234 individuals not included in the model training set were investigated to evaluate the performance of the model. The model achieved the accuracy of 97.8% along with 96.0% precision, 94.8% sensitivity and 98.7% specificity for DM classification based on a diagnosis threshold of 126 mg/dL for diabetes in fasting blood glucose. For non-invasive real-time blood glucose monitoring, the model exhibited ± 15% error with 95% confidence interval and the detection limit of 60–400 mg/dL, as validated with the standard hexokinase enzymatic method for glucose estimation. In conclusion, this proposed mbNIR based SDNN model with PMF is highly accurate and computationally cheaper compared to similar previous works using complex neural network. Some groups proposed using complicated mixed types of sensors to improve noninvasive glucose prediction accuracy; however, the accuracy gain over the complexity and costs of the systems harvested is still in questioned (Geng et al. in Sci Rep 7:12650, 2017). None of previous works report on accuracy enhancement of NIR/NN using PMF. Therefore, the proposed SDNN over PMF/mbNIR is an extremely promising candidate for the non-invasive real-time blood glucose monitoring with less complexity and pain-free.
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Affiliation(s)
- Chavis Srichan
- Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand.
| | | | | | | | - Amod Sharma
- Chronic Kidney Disease Prevention in the Northeast of Thailand (CKDNET), Khon Kaen University, Khon Kaen, Thailand.,Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Sirirat Anutrakulchai
- Chronic Kidney Disease Prevention in the Northeast of Thailand (CKDNET), Khon Kaen University, Khon Kaen, Thailand. .,Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
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Zafar H, Channa A, Jeoti V, Stojanović GM. Comprehensive Review on Wearable Sweat-Glucose Sensors for Continuous Glucose Monitoring. SENSORS (BASEL, SWITZERLAND) 2022; 22:638. [PMID: 35062598 PMCID: PMC8781973 DOI: 10.3390/s22020638] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/16/2021] [Accepted: 12/31/2021] [Indexed: 02/07/2023]
Abstract
The incidence of diabetes is increasing at an alarming rate, and regular glucose monitoring is critical in order to manage diabetes. Currently, glucose in the body is measured by an invasive method of blood sugar testing. Blood glucose (BG) monitoring devices measure the amount of sugar in a small sample of blood, usually drawn from pricking the fingertip, and placed on a disposable test strip. Therefore, there is a need for non-invasive continuous glucose monitoring, which is possible using a sweat sensor-based approach. As sweat sensors have garnered much interest in recent years, this study attempts to summarize recent developments in non-invasive continuous glucose monitoring using sweat sensors based on different approaches with an emphasis on the devices that can potentially be integrated into a wearable platform. Numerous research entities have been developing wearable sensors for continuous blood glucose monitoring, however, there are no commercially viable, non-invasive glucose monitors on the market at the moment. This review article provides the state-of-the-art in sweat glucose monitoring, particularly keeping in sight the prospect of its commercialization. The challenges relating to sweat collection, sweat sample degradation, person to person sweat amount variation, various detection methods, and their glucose detection sensitivity, and also the commercial viability are thoroughly covered.
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Affiliation(s)
- Hima Zafar
- Faculty of Technical Sciences, University of Novi Sad, T. Dositeja Obradovića 6, 21000 Novi Sad, Serbia; (V.J.); (G.M.S.)
| | - Asma Channa
- Computer Science Department, University Politehnica of Bucharest, 060042 Bucharest, Romania;
- DIIES Department, Mediterranea University of Reggio Calabria, 89100 Reggio Calabria, Italy
| | - Varun Jeoti
- Faculty of Technical Sciences, University of Novi Sad, T. Dositeja Obradovića 6, 21000 Novi Sad, Serbia; (V.J.); (G.M.S.)
| | - Goran M. Stojanović
- Faculty of Technical Sciences, University of Novi Sad, T. Dositeja Obradovića 6, 21000 Novi Sad, Serbia; (V.J.); (G.M.S.)
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Komkova MA, Eliseev AA, Poyarkov AA, Daboss EV, Evdokimov PV, Eliseev AA, Karyakin AA. Simultaneous monitoring of sweat lactate content and sweat secretion rate by wearable remote biosensors. Biosens Bioelectron 2022; 202:113970. [PMID: 35032921 DOI: 10.1016/j.bios.2022.113970] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/07/2021] [Accepted: 01/04/2022] [Indexed: 12/15/2022]
Abstract
We report on the simultaneous monitoring of sweat lactate concentration and sweat secretion rate. For this aim lactate oxidase-Prussian Blue enzyme-nanozyme type lactate biosensors were elaborated. The use of siloxane-perfluorosulfonated ionomer composite membrane for enzyme-nanozyme immobilization results in the biosensor displaying flux independence in the whole range of physiological sweat secretion rates (0.025-2 μl cm-2 min-1). On the contrary, current response of the biosensor based on solely siloxane membranes becomes saturated at physiological sweat lactate concentration, depending mostly on the flow rate. Accordingly, for simultaneous monitoring of sweat lactate concentration and its secretion rate both flow-through biosensors were integrated with high-accuracy wearable electronic devices allowing real-time remote monitoring. As found, during exhaustive physical exercise sweat secretion rate and lactate content are independent of each other, thus, confirming that this excretory liquid is suitable for non-invasive diagnostics.
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Affiliation(s)
- Maria A Komkova
- Chemistry faculty of M.V. Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow, 119991, Russia.
| | - Artem A Eliseev
- Chemistry faculty of M.V. Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow, 119991, Russia
| | - Andrei A Poyarkov
- Materials Science faculty of M.V. Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow, 119991, Russia
| | - Elena V Daboss
- Chemistry faculty of M.V. Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow, 119991, Russia
| | - Pavel V Evdokimov
- Chemistry faculty of M.V. Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow, 119991, Russia; Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninskii prospect 31, Moscow, 119991, Russia
| | - Andrei A Eliseev
- Materials Science faculty of M.V. Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow, 119991, Russia
| | - Arkady A Karyakin
- Chemistry faculty of M.V. Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow, 119991, Russia
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10
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Food and agro-product quality evaluation based on spectroscopy and deep learning: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.04.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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11
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Fuglerud SS, Ellingsen R, Aksnes A, Hjelme DR. Investigation of the effect of clinically relevant interferents on glucose monitoring using near-infrared spectroscopy. JOURNAL OF BIOPHOTONICS 2021; 14:e202000450. [PMID: 33583135 DOI: 10.1002/jbio.202000450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/21/2020] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
Near infrared spectroscopy (NIR) is a promising technique for continuous blood glucose monitoring for diabetic patients. Four interferents, at physiological concentrations, were introduced to study how the glucose predictions varied with a standard multivariate calibration model. Lactate and ethanol were found to interfere strongly with the glucose predictions unless they were included in the calibration models. Lactate was mistaken for glucose and gave erroneously high glucose predictions, with a dose response of 0.46 mM/mM. The presence of ethanol resulted in too low glucose predictions, with a dose response of -0.43 mM/mM. Acetaminophen, a known interferent in the glucose monitoring devices used for diabetes management today, was not found to be an interferent in NIR spectroscopy, nor was caffeine. Thus, interferents that may appear in high concentrations, such as ethanol and lactate, must be included in the calibration or model building of future NIR-based glucose measurement devices for diabetes monitoring.
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Affiliation(s)
- Silje Skeide Fuglerud
- Department of Electronic Systems, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Endocrinology, St. Olavs University Hospital, Trondheim, Norway
| | - Reinold Ellingsen
- Department of Electronic Systems, Norwegian University of Science and Technology, Trondheim, Norway
| | - Astrid Aksnes
- Department of Electronic Systems, Norwegian University of Science and Technology, Trondheim, Norway
| | - Dag Roar Hjelme
- Department of Electronic Systems, Norwegian University of Science and Technology, Trondheim, Norway
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13
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Zeng J, Zhou Z, Liao Y, Ma L, Huang X, Zhang J, Lin L, Zhu J, Lei L, Cao J, Shen H, Zheng Y, Wu Z. System optimisation quantitative model of on-line NIR: a case of Glycyrrhiza uralensis Fisch extraction process. PHYTOCHEMICAL ANALYSIS : PCA 2021; 32:165-171. [PMID: 31953885 DOI: 10.1002/pca.2919] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 12/20/2019] [Accepted: 12/25/2019] [Indexed: 05/25/2023]
Abstract
INTRODUCTION The on-line analysis of active pharmaceutical ingredients (APIs) during the extraction process in herbal medicine is a challenge. Establishing a reliable and robust model is a critical procedure for the industrial application of on-line near-infrared (NIR) technology. OBJECTIVE To evaluate the advantages of on-line NIR model development using system optimisation strategy, Glycyrrhiza uralensis Fisch was used as a case. The content of liquiritin and glycyrrhizic acid was monitored during pilot scale extraction process of Glycyrrhiza uralensis Fisch in three batches. METHODS High-performance liquid chromatography (HPLC) was used as reference method for content determination of liquiritin and glycyrrhizic acid. The quantitative models of on-line NIR were developed by system optimisation of processing trajectory. For comparison, the models were simultaneously developed by stepwise optimisation. Moreover, the modelling parameters obtained through system optimisation and stepwise optimisation were reused in three batches. Root mean square error of prediction (RMSEP) and residual predictive deviation (RPD) were used to assess the model quality. RESULTS The average values of RMSEP and RPD of systematic model for liquiritin in three batches were 0.0361, 4.1525 (first batch), 0.0348, 4.7286 (second batch) and 0.0311, 4.9686 (third batch), respectively. In addition, the modelling parameters of systematic model for glycyrrhizic acid in three batches were same, and the average values of RMSEP and RPD were 0.0665 and 5.2751, respectively. The predictive performance and robustness of systematic models for the three batches were better than the comparison models. CONCLUSION The work demonstrated that system optimisation quantitative model of on-line NIR could be used to determine the contents of liquiritin and glycyrrhizic acid during Glycyrrhiza uralensis Fisch extraction process.
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Affiliation(s)
- Jingqi Zeng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Zheng Zhou
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- Pharmaceutical Engineering and New Drug Development of TCM of Ministry of Education, Beijing, China
| | - Yuan Liao
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xian, China
| | - Lijuan Ma
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- Pharmaceutical Engineering and New Drug Development of TCM of Ministry of Education, Beijing, China
| | - Xingguo Huang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- Pharmaceutical Engineering and New Drug Development of TCM of Ministry of Education, Beijing, China
| | - Jing Zhang
- College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Ling Lin
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- Pharmaceutical Engineering and New Drug Development of TCM of Ministry of Education, Beijing, China
| | - Jinyuan Zhu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- Pharmaceutical Engineering and New Drug Development of TCM of Ministry of Education, Beijing, China
| | - Leting Lei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- Pharmaceutical Engineering and New Drug Development of TCM of Ministry of Education, Beijing, China
| | - Junjie Cao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- Pharmaceutical Engineering and New Drug Development of TCM of Ministry of Education, Beijing, China
| | - Haoran Shen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- Pharmaceutical Engineering and New Drug Development of TCM of Ministry of Education, Beijing, China
| | - Yanfei Zheng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Zhisheng Wu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- Pharmaceutical Engineering and New Drug Development of TCM of Ministry of Education, Beijing, China
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14
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Exploring Appropriate Preprocessing Techniques for Hyperspectral Soil Organic Matter Content Estimation in Black Soil Area. REMOTE SENSING 2020. [DOI: 10.3390/rs12223765] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Black soil in northeast China is gradually degraded and soil organic matter (SOM) content decreases at a rate of 0.5% per year because of the long-term cultivation. SOM content can be obtained rapidly by visible and near-infrared (Vis–NIR) spectroscopy. It is critical to select appropriate preprocessing techniques for SOM content estimation through Vis–NIR spectroscopy. This study explored three categories of preprocessing techniques to improve the accuracy of SOM content estimation in black soil area, and a total of 496 ground samples were collected from the typical black soil area at 0–15 cm in Hai Lun City, Heilongjiang Province, northeast of China. Three categories of preprocessing include denoising, data transformation and dimensionality reduction. For denoising, Svitzky-Golay filter (SGF), wavelet packet transform (WPT), multiplicative scatter correction (MSC), and none (N) were applied to spectrum of ground samples. For data transformation, fractional derivatives were allowed to vary from 0 to 2 with an increment of 0.2 at each step. For dimensionality reduction, multidimensional scaling (MDS) and locally linear embedding (LLE) were introduced and compared with principal component analysis (PCA), which was commonly used for dimensionality reduction of soil spectrum. After spectral pretreatments, a total of 132 partial least squares regression (PLSR) models were constructed for SOM content estimation. Results showed that SGF performed better than the other three denoising methods. Low-order derivatives can accentuate spectral features of soil for SOM content estimation; as the order increases from 0.8, the spectrum were more susceptible to spectral noise interferences. In most cases, 0.2–0.8 order derivatives exhibited the best estimation performance. Furthermore, PCA yielded the optimal predictability, the mean residual predictive deviation (RPD) and maximum RPD of the models using PCA were 1.79 and 2.60, respectively. The application of appropriate preprocessing techniques could improve the efficiency and accuracy of SOM content estimation, which is important for the protection of ecological and agricultural environment in black soil area.
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15
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Predicting the Electric Conductivity and Potassium Leaching of Coffee by NIR Spectroscopy Technique. FOOD ANAL METHOD 2020. [DOI: 10.1007/s12161-020-01843-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Ultrasound-modulated optical glucose sensing using a 1645 nm laser. Sci Rep 2020; 10:13361. [PMID: 32770091 PMCID: PMC7414225 DOI: 10.1038/s41598-020-70305-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 07/27/2020] [Indexed: 11/18/2022] Open
Abstract
Regular and frequent blood glucose monitoring is vital in managing diabetes treatment plans and preventing severe complications. Because current invasive techniques impede patient compliance and are not infection-free, many noninvasive methods have been proposed. Among them, optical methods have drawn much attention for their rich optical contrast, but their resolution is degraded in deep tissue. Here, we present an ultrasound-modulated optical sensing (UOS) technique to noninvasively monitor glucose that uses an infrared laser (1645 nm) and a single-element focused ultrasound transducer. Focused ultrasound waves can acoustically localize diffused photons in scattering media, and thus optical contrast can be represented with much enhanced spatial resolution. To maximize the signal-to-noise ratio, we compared the modulation depths of UOS signals in both continuous and burst ultrasound transmission modes. Finally, UOS measurements of various glucose concentrations are presented and compared with those acquired in phantoms with a conventional diffuse optical sensing method. The UOS measurements in a 20 mm thick tissue-mimicking phantom show 26.6% accuracy in terms of mean absolute relative difference (MARD), which indicates the great potential of the proposed technique as a noninvasive glucose sensor.
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17
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Karpova EV, Karyakina EE, Karyakin AA. Wearable non-invasive monitors of diabetes and hypoxia through continuous analysis of sweat. Talanta 2020; 215:120922. [DOI: 10.1016/j.talanta.2020.120922] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/04/2020] [Accepted: 03/10/2020] [Indexed: 10/24/2022]
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18
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Accurate prediction of glucose concentration and identification of major contributing features from hardly distinguishable near-infrared spectroscopy. Biomed Signal Process Control 2020. [DOI: 10.1016/j.bspc.2020.101923] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Hyperspectral Estimation of Soil Organic Matter Content using Different Spectral Preprocessing Techniques and PLSR Method. REMOTE SENSING 2020. [DOI: 10.3390/rs12071206] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Soil organic matter (SOM) is the main source of soil nutrients, which are essential for the growth and development of agricultural crops. Hyperspectral remote sensing is one of the most efficient ways of estimating the SOM content. Visible, near infrared, and mid-infrared reflectance spectroscopy, combined with the partial least squares regression (PLSR) method is considered to be an effective way of determining soil properties. In this study, we used 54 different spectral pretreatments to preprocess soil spectral data. These spectral pretreatments were composed of three denoising methods, six data transformations, and three dimensionality reduction methods. The three denoising methods included no denoising (ND), Savitzky–Golay denoising (SGD), and wavelet packet denoising (WPD). The six data transformations included original spectral data, R; reciprocal, 1/R; logarithmic, log(R); reciprocal logarithmic, log(1/R); first derivative, R’; and first derivative of reciprocal, (1/R)’. The three dimensionality reduction methods included no dimensionality reduction (NDR), sensitive waveband dimensionality reduction (SWDR), and principal component analysis (PCA) dimensionality reduction (PCADR). The processed spectra were then employed to construct PLSR models for predicting the SOM content. The main results were as follows—(1) the wavelet packet denoising (WPD)-R’ and WPD-(1/R)’ data showed stronger correlations with the SOM content. Furthermore, these methods could effectively limit the correlation between the adjacent bands and, thus, prevent “overfitting”. (2) Of the 54 pretreatments investigated, WPD-(1/R)’-PCADR yielded the model with the highest accuracy and stability. (3) For the same denoising method and spectral transformation data, the accuracy of the SOM content estimation model based on SWDR was higher than that of the model based on NDR. Furthermore, the accuracy in the case of PCADR was higher than that for SWDR. (4) Dimensionality reduction was effective in preventing data overfitting. (5) The quality of the spectral data could be improved and the accuracy of the SOM content estimation model could be enhanced effectively, by using some appropriate preprocessing methods (one combining WPD and PCADR in this study).
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20
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Shokrekhodaei M, Quinones S. Review of Non-invasive Glucose Sensing Techniques: Optical, Electrical and Breath Acetone. SENSORS (BASEL, SWITZERLAND) 2020; 20:E1251. [PMID: 32106464 PMCID: PMC7085605 DOI: 10.3390/s20051251] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/22/2020] [Accepted: 02/23/2020] [Indexed: 12/12/2022]
Abstract
Annual deaths in the U.S. attributed to diabetes are expected to increase from 280,210 in 2015 to 385,840 in 2030. The increase in the number of people affected by diabetes has made it one of the major public health challenges around the world. Better management of diabetes has the potential to decrease yearly medical costs and deaths associated with the disease. Non-invasive methods are in high demand to take the place of the traditional finger prick method as they can facilitate continuous glucose monitoring. Research groups have been trying for decades to develop functional commercial non-invasive glucose measurement devices. The challenges associated with non-invasive glucose monitoring are the many factors that contribute to inaccurate readings. We identify and address the experimental and physiological challenges and provide recommendations to pave the way for a systematic pathway to a solution. We have reviewed and categorized non-invasive glucose measurement methods based on: (1) the intrinsic properties of glucose, (2) blood/tissue properties and (3) breath acetone analysis. This approach highlights potential critical commonalities among the challenges that act as barriers to future progress. The focus here is on the pertinent physiological aspects, remaining challenges, recent advancements and the sensors that have reached acceptable clinical accuracy.
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Affiliation(s)
- Maryamsadat Shokrekhodaei
- Department of Electrical and Computer Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA
| | - Stella Quinones
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA;
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21
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Cheng J, Ji Z, Li M, Dai J. Study of a noninvasive blood glucose detection model using the near-infrared light based on SA-NARX. Biomed Signal Process Control 2020. [DOI: 10.1016/j.bspc.2019.101694] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Ben Ahmed Z, Mohamed Y, Johan V, Dejaegher B, Demeyer K, Vander Heyden Y. Defining a standardized methodology for the determination of the antioxidant capacity: case study of Pistacia atlantica leaves. Analyst 2020; 145:557-571. [DOI: 10.1039/c9an01643k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Antioxidant activity can be measured by a variety of methods, that include hydrogen atom transfer (HAT) and single electron transfer (ET) methods.
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Affiliation(s)
- Ziyad Ben Ahmed
- Laboratory of Science Fundamental University Amar Telidji
- BP37G Laghouat
- Algeria
- Department of Analytical Chemistry
- Applied Chemometricsand Molecular Modelling
| | - Yousfi Mohamed
- Laboratory of Science Fundamental University Amar Telidji
- BP37G Laghouat
- Algeria
| | - Viaene Johan
- Department of Analytical Chemistry
- Applied Chemometricsand Molecular Modelling
- Vrije Universiteit Brussel (VUB)
- B-1090 Brussels
- Belgium
| | - Bieke Dejaegher
- Department of Analytical Chemistry
- Applied Chemometricsand Molecular Modelling
- Vrije Universiteit Brussel (VUB)
- B-1090 Brussels
- Belgium
| | - Kristiaan Demeyer
- Department of Toxicology
- Dermato-Cosmetology and Pharmacognosy
- VrijeUniversiteit Brussel (VUB)
- B-1030 Brussels
- Belgium
| | - Yvan Vander Heyden
- Department of Analytical Chemistry
- Applied Chemometricsand Molecular Modelling
- Vrije Universiteit Brussel (VUB)
- B-1090 Brussels
- Belgium
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23
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Dziergowska K, Łabowska MB, Gąsior-Głogowska M, Kmiecik B, Detyna J. Modern noninvasive methods for monitoring glucose levels in patients: a review. BIO-ALGORITHMS AND MED-SYSTEMS 2019. [DOI: 10.1515/bams-2019-0052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AbstractThis paper presents the current state of the art of noninvasive glucose monitoring. In recent years, we can observe constant increase in the incidence of diabetes. About 40% of all performed blood tests apply to the glucose tests. Formerly, this lifestyle disease occurred mainly in rich countries, but now it is becoming more common in poorer countries. It is related to the increase in life expectancy, unhealthy diet, lack of exercise, and other factors. Untreated diabetes may cause many complications or even death. For this reason, daily control of glucose levels in people with this disorder is very important. Measurements with a traditional glucometer are connected with performing finger punctures several times a day, which is painful and uncomfortable for patients. Therefore, researches on other methods are ongoing. A method that would be fast, noninvasive and cheap could also enable testing the state of the entire population, which is necessary because of the number of people currently living with undiagnosed type 2 diabetes. Although the first glucometer was made in 1966, the first studies on glucose level measurement in tear film were documented as early as 1937. This shows how much a noninvasive method of diabetes control is needed. Since then, there have been more and more studies on alternative methods of glucose measurement, not only from tear fluid, but also from saliva, sweat, or transdermally.
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Affiliation(s)
- Katarzyna Dziergowska
- Department of Advanced Material Technologies, Faculty of Chemistry, Wrocław University of Science and Technology, Smoluchowskiego 25, Wrocław, Poland
| | - Magdalena Beata Łabowska
- Material Science and Engineering, Faculty of Mechanical Engineering, Department of Mechanics, Wrocław University of Science and Technology, Smoluchowskiego 25Wrocław, Poland
| | - Marlena Gąsior-Głogowska
- Faculty of Fundamental Problems of Technology, Department of Biomedical Engineering, Wrocław University of Science and Technology, Plac Grunwaldzki 13, 50-377 Wrocław, Poland
| | - Barbara Kmiecik
- Material Science and Engineering, Faculty of Mechanical Engineering, Department of Mechanics, Wrocław University of Science and Technology, Smoluchowskiego 25Wrocław, Poland
| | - Jerzy Detyna
- Material Science and Engineering, Faculty of Mechanical Engineering, Department of Mechanics, Wrocław University of Science and Technology, Smoluchowskiego 25Wrocław, Poland
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24
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Liu J, Han T, Jiang J, Xu K. Specialized source-detector separations in near-infrared reflectance spectroscopy platform enable effective separation of diffusion and absorption for glucose sensing. BIOMEDICAL OPTICS EXPRESS 2019; 10:4839-4858. [PMID: 31565529 PMCID: PMC6757447 DOI: 10.1364/boe.10.004839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 06/28/2019] [Accepted: 08/20/2019] [Indexed: 06/10/2023]
Abstract
We present an approach for accurate glucose sensing in turbid media using a spectrally resolved reflectance setup. Our proposed reflectance setup uses specialized source-detector separations (SDSs) to enable an effective separation of diffusion and absorption signals. Additionally, we adjust the selected SDSs to their optimal values to acquire maximum sensitivity to glucose in the two signals. The separation can help to enhance the sensitivity to glucose both for the diffusion and absorption signals, as they always suppress each other by causing opposite effects on the reflected diffuse light intensity. Monte Carlo simulations and experiments for glucose sensing are used to test the method. The acquired optimal SDSs could provide a reference for noninvasive blood glucose sensing.
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Affiliation(s)
- Jin Liu
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, China
- These authors contributed equally to this work
| | - Tongshuai Han
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, China
- These authors contributed equally to this work
| | - Jingying Jiang
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing, China
- These senior authors contributed equally to this work
| | - Kexin Xu
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, China
- These senior authors contributed equally to this work
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25
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26
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Lima DR, Gomes AA, Lima EC, Umpierres CS, Thue PS, Panzenhagen JCP, Dotto GL, El-Chaghaby GA, de Alencar WS. Evaluation of efficiency and selectivity in the sorption process assisted by chemometric approaches: Removal of emerging contaminants from water. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 218:366-373. [PMID: 31030003 DOI: 10.1016/j.saa.2019.04.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/13/2019] [Accepted: 04/09/2019] [Indexed: 06/09/2023]
Abstract
This paper describes, by the first time, a chemometric approach that combines a simple set of the UV-Vis spectra and partial least square regression (PLSR) for measuring the removal of five pharmaceuticals present in simulated hospital effluents by sorption using activated carbon. The use of multivariate calibration allowed the quantification of the remaining concentrations of the studied drugs present in a complex mixture with high accuracy, avoiding the need for the use of sophisticated methodologies based on chromatography. Isothermal sorption studies were performed on single-component solutions containing amoxicillin, paracetamol, propranolol, sodium diclofenac, or tetracycline as well as on a solution containing a mixture of all these 5 compounds. The isotherm data obtained were fitted to the Langmuir, Freundlich and Liu models. It was observed that for each pharmaceutical, the maximum sorption capacity of the activated carbon was higher for the single component than in the mixture. It was observed that the removal of paracetamol, propranolol, and tetracycline, the removal was complete (100%) and for amoxicillin and sodium diclofenac it was at least 92.71 ± 3.15% and 91.82 ± 0.95% respectively, indicating that the avocado seed activated carbon is an adsorbent with high sorption capacity that can remove five pharmaceuticals from simulated hospital effluents.
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Affiliation(s)
- Diana R Lima
- Graduate Program in Metallurgical, Mine and Materials Engineering (PPGE3M), School of Engineering, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, Brazil
| | - Adriano A Gomes
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Eder C Lima
- Graduate Program in Metallurgical, Mine and Materials Engineering (PPGE3M), School of Engineering, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, Brazil; Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil; Graduate program in Science of Materials (PGCIMAT), Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, Brazil.
| | - Cibele S Umpierres
- Graduate program in Science of Materials (PGCIMAT), Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, Brazil
| | - Pascal S Thue
- Graduate program in Science of Materials (PGCIMAT), Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, Brazil
| | - José C P Panzenhagen
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500, P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Guilherme L Dotto
- Chemical Engineering Department, Federal University of Santa Maria-UFSM, Santa Maria, RS, Brazil
| | | | - Wagner S de Alencar
- Institute of Exact Sciences, Federal University of South and Southeast of Pará (UNIFESSPA), Marabá, PA, Brazil
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27
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Fuglerud SS, Milenko KB, Ellingsen R, Aksnes A, Hjelme DR. Glucose sensing by absorption spectroscopy using lensed optical fibers. APPLIED OPTICS 2019; 58:2456-2462. [PMID: 31045037 DOI: 10.1364/ao.58.002456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 02/23/2019] [Indexed: 06/09/2023]
Abstract
The bulkiness of common transmission spectroscopy probes prevents applicability at remote locations such as within the body. We present the fabrication and characterization of lensed fibers for transmission spectroscopy in the near-infrared. Eigenmode simulations and measurements of the coupling efficiency are presented and applied to design the setup corresponding to the sample absorption. Sensing capabilities are demonstrated on aqueous glucose samples ranged 80 to 500 mM, obtaining a mean absolute percentage error of calibration of 4.3%. With increased flexibility, transmission spectroscopic sensors at remote locations may be achievable, for example, applied to in vivo continuous glucose monitoring.
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28
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The Influence of Spectral Pretreatment on the Selection of Representative Calibration Samples for Soil Organic Matter Estimation Using Vis-NIR Reflectance Spectroscopy. REMOTE SENSING 2019. [DOI: 10.3390/rs11040450] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In constructing models for predicting soil organic matter (SOM) by using visible and near-infrared (vis–NIR) spectroscopy, the selection of representative calibration samples is decisive. Few researchers have studied the inclusion of spectral pretreatments in the sample selection strategy. We collected 108 soil samples and applied six commonly used spectral pretreatments to preprocess soil spectra, namely, Savitzky–Golay (SG) smoothing, first derivative (FD), logarithmic function log(1/R), mean centering (MC), standard normal variate (SNV), and multiplicative scatter correction (MSC). Then, the Kennard–Stone (KS) strategy was used to select calibration samples based on the pretreated spectra, and the size of the calibration set varied from 10 samples to 86 samples (80% of the total samples). These calibration sets were employed to construct partial least squares regression models (PLSR) to predict SOM, and the built models were validated by a set of 21 samples (20% of the total samples). The results showed that 64−78% of the calibration sets selected by the inclusion of pretreatment demonstrated significantly better performance of SOM estimation. The average improved residual predictive deviations (ΔRPD) were 0.06, 0.13, 0.19, and 0.13 for FD, log(1/R), MSC, and SNV, respectively. Thus, we concluded that spectral pretreatment improves the sample selection strategy, and the degree of its influence varies with the size of the calibration set and the type of pretreatment.
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29
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Karpova EV, Shcherbacheva EV, Galushin AA, Vokhmyanina DV, Karyakina EE, Karyakin AA. Noninvasive Diabetes Monitoring through Continuous Analysis of Sweat Using Flow-Through Glucose Biosensor. Anal Chem 2019; 91:3778-3783. [DOI: 10.1021/acs.analchem.8b05928] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Elena V. Karpova
- Chemistry Faculty of M. V. Lomonosov Moscow State University 119991, Moscow, Russia
| | | | - Andrei A. Galushin
- Chemistry Faculty of M. V. Lomonosov Moscow State University 119991, Moscow, Russia
| | - Darya V. Vokhmyanina
- Chemistry Faculty of M. V. Lomonosov Moscow State University 119991, Moscow, Russia
| | - Elena E. Karyakina
- Chemistry Faculty of M. V. Lomonosov Moscow State University 119991, Moscow, Russia
| | - Arkady A. Karyakin
- Chemistry Faculty of M. V. Lomonosov Moscow State University 119991, Moscow, Russia
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30
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Jintao X, Yongli S, Liming Y, Quanwei Y, Chunyan L, Xingyi C, Yun J. Near-infrared spectroscopy for rapid and simultaneous determination of five main active components in rhubarb of different geographical origins and processing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 205:419-427. [PMID: 30048943 DOI: 10.1016/j.saa.2018.07.055] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/15/2018] [Accepted: 07/17/2018] [Indexed: 06/08/2023]
Abstract
Rhubarb (Rhei Radix et Rhizoma) is a classic herbal laxative medicine in Europe and a very famous natural medicine in Asia, especially in China. In this study, near-infrared spectroscopy (NIRS) was first used for rapid and simultaneous analysis of five main active components (chrysophanol, aloe-emodin, rhein, emodin and physcion) in rhubarb of 6 geographical origins, processing and spurious samples. A total of 124 samples (73 raw, 40 processed and 11 spurious samples) were collected. With the reference values determined by HPLC, two calibration strategies, partial least squares (PLS) as a linear regression method and artificial neural networks (ANN) as a non-linear regression method, were studied. For the PLS strategy, 11 spectral pre-processing methods, 5 spectral regions and different latent variables (LVs) were systematically compared, while 3 spectral pre-processing methods and 5 ANN algorithms were studied for the ANN strategy. The results indicated that PLS was more suitable for the analysis of chrysophanol, aloe-emodin, emodin and physcion, whereas ANN was better for rhein. For the optimal NIR models of chrysophanol, aloe-emodin, rhein, emodin and physcion, the correlation coefficients of the calibration set (Rcal) were 0.9916, 0.9762, 0.9839, 0.9794 and 0.9800, respectively; the correlation coefficients of the prediction set (Rpre) were 0.9888, 0.9359, 0.9410, 0.9805 and 0.9785, respectively; the root mean square error of validation (RMSEP) were 0.0402, 0.0197, 0.0593, 0.0133 and 0.0192, respectively. Subsequently, the optimal NIR models were used to study the effects of geographical regions and processing, and identify the spurious rhubarb. Collectively, NIRS may be a well-acceptable method for quality evaluation of rhubarb and other traditional Chinese medicine (TCM).
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Affiliation(s)
- Xue Jintao
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China
| | - Shi Yongli
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China
| | - Ye Liming
- West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan Province, PR China.
| | - Yang Quanwei
- Department of Pharmacy, Wu Han No. 1 Hospital, Wuhan 430022, Hubei Province, PR China
| | - Li Chunyan
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China; Sanquan College of Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China
| | - Chen Xingyi
- West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan Province, PR China
| | - Jing Yun
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China.
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31
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Liu J, Zhu C, Jiang J, Xu K. Scattering-independent glucose absorption measurement using a spectrally resolved reflectance setup with specialized variable source-detector separations. BIOMEDICAL OPTICS EXPRESS 2018; 9:5903-5914. [PMID: 31065402 PMCID: PMC6491023 DOI: 10.1364/boe.9.005903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/25/2018] [Accepted: 10/29/2018] [Indexed: 06/09/2023]
Abstract
We report a novel approach for the accurate measurement of glucose absorption in turbid media using a spectrally resolved reflectance setup. Our proposed reflectance setup with specialized variable source-detector separations enables scattering-independent absorption measurement, which is critical to in vivo long-term glucose concentration monitoring. Starting from the first-order approximation of the radiative transfer equation (RTE), we developed a scattering-independent glucose absorption measurement method and then evaluated this approach by Monte Carlo simulations as well as tissue-mimicking phantom studies in which glucose concentration was accurately measured. Our study demonstrates the potential of our proposed scattering-independent absorption measurement technique as an effective tool to quantify glucose levels in turbid media, which is an important step towards future in vivo long-term glucose concentration monitoring in human subjects.
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Affiliation(s)
- Jin Liu
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, China
- These authors contributed equally to this work
| | - Caigang Zhu
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
- These authors contributed equally to this work
| | - Jingying Jiang
- Paul C Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- These senior authors contributed equally to this work
| | - Kexin Xu
- State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, China
- These senior authors contributed equally to this work
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Application of Spectrally Derived Soil Type as Ancillary Data to Improve the Estimation of Soil Organic Carbon by Using the Chinese Soil Vis-NIR Spectral Library. REMOTE SENSING 2018. [DOI: 10.3390/rs10111747] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Ancillary data, such as soil type, may improve the visible and near-infrared (vis-NIR) estimation of soil organic carbon (SOC); however, they require data collection or expert knowledge. The application of a national soil spectral library to local SOC estimations usually requires soil type information, because the relationships between vis-NIR spectra and SOC from different populations may vary. Using 515 samples of five soil types (genetic soil classification of China, GSCC) from the Chinese soil spectral library (CSSL), we compared three strategies in the vis-NIR estimation of SOC. Different regression models were calibrated using the entire dataset (Strategy I, without using soil type as ancillary data) and the subsets stratified by soil type from CSSL as ancillary data (strategies II and III). In Strategy II, the subsets were stratified by soil type from the CSSL for validation. In Strategy III, the subsets were stratified by spectrally derived soil type for validation. The results showed that 86.72% of the samples were successfully discriminated for the soil types by using the vis-NIR spectra. The coefficients of determination in the prediction ( R p 2 ) of SOC estimation by strategies I, II, and III were 0.74, 0.83, and 0.82, respectively. The stratified calibration strategies (strategies II and III) improved the vis-NIR estimation of SOC. The misclassification of the soil type in the application of Strategy III slightly affected the SOC estimations. Nevertheless, this strategy is inexpensive and beneficial when expert knowledge on soil classification is lacking. We concluded that vis-NIR spectroscopy could be applied to distinguish some soil types in terms of GSCC, which further provided essential and easily accessible ancillary data for the application of stratified calibration strategies in the vis-NIR estimation of SOC.
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Suryakala SV, Prince S. CHEMOMETRIC ANALYSIS OF DIFFUSE REFLECTANCE SPECTRAL DATA USING SINGULAR VALUE DECOMPOSITION FOR BLOOD GLUCOSE DETECTION. BIOMEDICAL ENGINEERING: APPLICATIONS, BASIS AND COMMUNICATIONS 2018. [DOI: 10.4015/s1016237218500278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Diabetes mellitus is a metabolic disorder that affects the production or usage of insulin by the body. Diabetes prevails in the body as a long-term condition which causes several other disorders if left unnoticed. Proper control of Diabetes needs continuous monitoring. The current measurement technique is invasive in nature and requires the withdrawal of blood from the body. Periodic quantification of blood glucose leads to pain and discomfort for the subject. This paper presents a non-invasive glucose measuring system using near-infrared diffuse reflectance spectroscopy (DRS). This work attempts to determine the blood glucose value from the diffuse reflected spectra in the NIR region. The study is executed with the spectral signatures of 33 diabetic subjects collected non-invasively using diffuse reflectance spectrometer from a diabetic centre. Blood glucose level of the same subjects are also recorded using the clinical method. The spectral information is subjected to standard normal variate (SNV) preprocessing method to remove baseline drift and then dimension reduction using singular value decomposition (SVD) is applied to the preprocessed data. The extracted singular values when compared with the clinically measured blood glucose is found to have a proportional relationship. The proposed study using singular value decomposition paves us the way for estimating the blood glucose value non-invasively with the obtained set of clinical blood glucose and the corresponding singular value table as a standard reference set.
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Affiliation(s)
- S. Vasanthadev Suryakala
- Department of Electronics and Communication Engineering, SRM University, Kattankulathur 603203, Tamil Nadu, India
| | - Shanthi Prince
- Department of Electronics and Communication Engineering, SRM University, Kattankulathur 603203, Tamil Nadu, India
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Zhu Y, Chen X, Wang S, Liang S, Chen C. Simultaneous measurement of contents of liquirtin and glycyrrhizic acid in liquorice based on near infrared spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 196:209-214. [PMID: 29453095 DOI: 10.1016/j.saa.2018.02.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 01/20/2018] [Accepted: 02/06/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To establish calibration models for simultaneous determination of contents of liquirtin and glycyrrhizic acid, and to investigate the variable selection methods. METHODS The contents of liquirtin and glycyrrhizic acid determined by HPLC were as the reference values, which were associated with samples spectra by using near infrared spectrum (NIR) analysis technology. Calibration models were developed using partial least squares (PLS) regression algorithm, and evaluated by the independent dataset test with calculating the metrics of coefficients of determination of calibration and prediction (R2c, R2p), the root mean square errors of calibration and prediction (RMSEC, RMSEP), the mean absolute errors of calibration and prediction (MAEC, MAEP), and the residual prediction deviation (RPD). Five variable selection methods including variable importance in projection (VIP), competitive adaptive reweighted sampling (CARS), Monte Carlo uninformative variable elimination (MCUVE), particle swarm optimization (PSO) and genetic algorithm (GA), were investigated. RESULTS Compared to the original full spectra, both quantification models for liquirtin and glycyrrhizic acid performed better with a clear ranking of GA>PSO>CARS>MCUVE≅VIP>Full. Especially for GA-PLS models, RMSEC and RMSEP were <0.05%, R2c and R2p were >0.94, and RPD were both >4, indicating that both the models had good robustness and excellent prediction accuracy. CONCLUSION The present calibration models can be utilized to simultaneously determine the contents of liquirtin and glycyrrhizic acid in liquorice samples, and thus are of great help for rapid quality evaluation and control of liquorice.
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Affiliation(s)
- Yuwei Zhu
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; The Key Unit of Chinese Medicine Digitalization Quality Evaluation of SATCM, Guangzhou 510006, PR China; The Research Center for Quality Engineering Technology of Traditional Chinese Medicine in Guangdong Universities, Guangzhou 510006, PR China
| | - Xiaoyi Chen
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; The Key Unit of Chinese Medicine Digitalization Quality Evaluation of SATCM, Guangzhou 510006, PR China; The Research Center for Quality Engineering Technology of Traditional Chinese Medicine in Guangdong Universities, Guangzhou 510006, PR China
| | - Shumei Wang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; The Key Unit of Chinese Medicine Digitalization Quality Evaluation of SATCM, Guangzhou 510006, PR China; The Research Center for Quality Engineering Technology of Traditional Chinese Medicine in Guangdong Universities, Guangzhou 510006, PR China
| | - Shengwang Liang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; The Key Unit of Chinese Medicine Digitalization Quality Evaluation of SATCM, Guangzhou 510006, PR China; The Research Center for Quality Engineering Technology of Traditional Chinese Medicine in Guangdong Universities, Guangzhou 510006, PR China
| | - Chao Chen
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; The Key Unit of Chinese Medicine Digitalization Quality Evaluation of SATCM, Guangzhou 510006, PR China; The Research Center for Quality Engineering Technology of Traditional Chinese Medicine in Guangdong Universities, Guangzhou 510006, PR China.
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Potentially antidiabetic and antihypertensive compounds identified from Pistacia atlantica leaf extracts by LC fingerprinting. J Pharm Biomed Anal 2018; 149:547-556. [DOI: 10.1016/j.jpba.2017.11.049] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/19/2017] [Accepted: 11/20/2017] [Indexed: 01/20/2023]
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36
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Jintao X, Yufei L, Liming Y, Chunyan L, Quanwei Y, Weiying W, Yun J, Minxiang Z, Peng L. Rapid and simultaneous analysis of five alkaloids in four parts of Coptidis Rhizoma by near-infrared spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 188:611-618. [PMID: 28780486 DOI: 10.1016/j.saa.2017.07.053] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 04/22/2017] [Accepted: 07/28/2017] [Indexed: 05/22/2023]
Abstract
Near-Infrared Spectroscopy (NIRS) was first used to develop a method for rapid and simultaneous determination of 5 active alkaloids (berberine, coptisine, palmatine, epiberberine and jatrorrhizine) in 4 parts (rhizome, fibrous root, stem and leaf) of Coptidis Rhizoma. A total of 100 samples from 4 main places of origin were collected and studied. With HPLC analysis values as calibration reference, the quantitative analysis of 5 marker components was performed by two different modeling methods, partial least-squares (PLS) regression as linear regression and artificial neural networks (ANN) as non-linear regression. The results indicated that the 2 types of models established were robust, accurate and repeatable for five active alkaloids, and the ANN models was more suitable for the determination of berberine, coptisine and palmatine while the PLS model was more suitable for the analysis of epiberberine and jatrorrhizine. The performance of the optimal models was achieved as follows: the correlation coefficient (R) for berberine, coptisine, palmatine, epiberberine and jatrorrhizine was 0.9958, 0.9956, 0.9959, 0.9963 and 0.9923, respectively; the root mean square error of validation (RMSEP) was 0.5093, 0.0578, 0.0443, 0.0563 and 0.0090, respectively. Furthermore, for the comprehensive exploitation and utilization of plant resource of Coptidis Rhizoma, the established NIR models were used to analysis the content of 5 active alkaloids in 4 parts of Coptidis Rhizoma and 4 main origin of places. This work demonstrated that NIRS may be a promising method as routine screening for off-line fast analysis or on-line quality assessment of traditional Chinese medicine (TCM).
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Affiliation(s)
- Xue Jintao
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China
| | - Liu Yufei
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China
| | - Ye Liming
- West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan Province, PR China.
| | - Li Chunyan
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China; Sanquan College of Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China
| | - Yang Quanwei
- Department of Pharmacy, Wu Han No.1 Hospital, Wuhan 430022, Hubei Province, PR China
| | - Wang Weiying
- West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan Province, PR China
| | - Jing Yun
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China
| | - Zhang Minxiang
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China
| | - Li Peng
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453002, Henan Province, PR China
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Li C, Shi X, Bao L, Yang J, Damirin A, Zhang J. The correlation between multiple variable factors and the autocatalytic properties of cerium oxide nanoparticles based on cell viability. NEW J CHEM 2018. [DOI: 10.1039/c8nj00293b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new strategy was developed for evaluating the autocatalytic property of Ce NPs under optimized reaction conditions by the PLSR method.
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Affiliation(s)
- Changyan Li
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
- Inner Mongolia Key Lab of Nanoscience and Nanotechnology
| | - Xiangcheng Shi
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
- Inner Mongolia Key Lab of Nanoscience and Nanotechnology
| | - Liang Bao
- College of Life Sciences, Inner Mongolia University
- Hohhot 010021
- P. R. China
- College of Biochemical Engineering
- Hohhot Vocational College
| | - Jingjie Yang
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
- Inner Mongolia Key Lab of Nanoscience and Nanotechnology
| | | | - Jun Zhang
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
- Inner Mongolia Key Lab of Nanoscience and Nanotechnology
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38
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Non-invasive monitoring of diabetes through analysis of the exhaled breath condensate (aerosol). Electrochem commun 2017. [DOI: 10.1016/j.elecom.2017.09.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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39
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Pomerantsev AL, Rodionova OY, Skvortsov AN. Diffuse Reflectance Spectroscopy of Hidden Objects, Part I: Interpretation of the Reflection-Absorption-Scattering Fractions in Near-Infrared (NIR) Spectra of Polyethylene Films. APPLIED SPECTROSCOPY 2017; 71:1760-1772. [PMID: 28357880 DOI: 10.1177/0003702817694182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Investigation of a sample covered by an interfering layer is required in many fields, e.g., for process control, biochemical analysis, and many other applications. This study is based on the analysis of spectra collected by near-infrared (NIR) diffuse reflectance spectroscopy. Each spectrum is a composition of a useful, target spectrum and a spectrum of an interfering layer. To recover the target spectrum, we suggest using a new phenomenological approach, which employs the multivariate curve resolution (MCR) method. In general terms, the problem is very complex. We start with a specific problem of analyzing a system, which consists of several layers of polyethylene (PE) film and underlayer samples with known spectral properties. To separate information originating from PE layers and the target, we modify the system versus both the number of the PE layers as well as the reflectance properties of the target sample. We consider that the interfering spectrum of the layer can be modeled using three components, which can be tentatively called transmission, absorption, and scattering contributions. The novelty of our approach is that we do not remove the reflectance and scattering effects from the spectra, but study them in detail aiming to use this information to recover the target spectrum.
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Affiliation(s)
- Alexey L Pomerantsev
- 1 Semenov Institute of Chemical Physics RAS, Moscow, Russia
- 2 Branch of Institute of Natural and Technical Systems RAS, Sochi, Russia
| | | | - Alexej N Skvortsov
- 3 Peter the Great St Petersburg State Polytechnic University, St. Petersburg, Russia
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Han G, Han T, Xu K, Liu J. Floating reference position-based correction method for near-infrared spectroscopy in long-term glucose concentration monitoring. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:77001. [PMID: 28679004 DOI: 10.1117/1.jbo.22.7.077001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 06/14/2017] [Indexed: 06/07/2023]
Abstract
We present a floating reference position (FRP)-based drift correction method for near-infrared (NIR) spectroscopy-based long-term blood glucose concentration (BGC) monitoring. Previously, we reported that it is difficult to quantify the systematic drift caused by the fluctuation of incident light intensity at different source–detector (SD) separations based on the absolute FRP change. We use the relative FRP change as a baseline reference to quantitatively characterize the signal drift at different SD separations. For the wavelengths that were used, a uniform equation was developed to describe the relationship between the drift and the relative FRP change. With the help of this equation, the correction can easily be performed by subtracting the systematic drift estimated by the equation. A theoretical analysis and an experimental phantom study demonstrated that our method could be used for systematic drift correction in NIR spectroscopy for long-term BGC monitoring. Moreover, the analysis method can also be referenced to reduce drifts from multiple sources.
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Affiliation(s)
- Guang Han
- Tianjin University, School of Precision Instrument and Optoelectronics Engineering, Tianjin, China
| | - Tongshuai Han
- Tianjin University, School of Precision Instrument and Optoelectronics Engineering, Tianjin, China
| | - Kexin Xu
- Tianjin University, School of Precision Instrument and Optoelectronics Engineering, Tianjin, China
| | - Jin Liu
- Tianjin University, School of Precision Instrument and Optoelectronics Engineering, Tianjin, China
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41
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Horemans B, Breugelmans P, Saeys W, Springael D. Soil-Bacterium Compatibility Model as a Decision-Making Tool for Soil Bioremediation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:1605-1615. [PMID: 28001051 DOI: 10.1021/acs.est.6b04956] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Bioremediation of organic pollutant contaminated soil involving bioaugmentation with dedicated bacteria specialized in degrading the pollutant is suggested as a green and economically sound alternative to physico-chemical treatment. However, intrinsic soil characteristics impact the success of bioaugmentation. The feasibility of using partial least-squares regression (PLSR) to predict the success of bioaugmentation in contaminated soil based on the intrinsic physico-chemical soil characteristics and, hence, to improve the success of bioaugmentation, was examined. As a proof of principle, PLSR was used to build soil-bacterium compatibility models to predict the bioaugmentation success of the phenanthrene-degrading Novosphingobium sp. LH128. The survival and biodegradation activity of strain LH128 were measured in 20 soils and correlated with the soil characteristics. PLSR was able to predict the strain's survival using 12 variables or less while the PAH-degrading activity of strain LH128 in soils that show survival was predicted using 9 variables. A three-step approach using the developed soil-bacterium compatibility models is proposed as a decision making tool and first estimation to select compatible soils and organisms and increase the chance of success of bioaugmentation.
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Affiliation(s)
- Benjamin Horemans
- KU Leuven , Division of Soil and Water Management, Kasteelpark Arenberg 20, 3001 Heverlee, Belgium
| | - Philip Breugelmans
- KU Leuven , Division of Soil and Water Management, Kasteelpark Arenberg 20, 3001 Heverlee, Belgium
| | - Wouter Saeys
- KU Leuven , Department of Biosystems, MeBioS, Kasteelpark Arenberg 30, 3001 Leuven, Belgium
| | - Dirk Springael
- KU Leuven , Division of Soil and Water Management, Kasteelpark Arenberg 20, 3001 Heverlee, Belgium
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42
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Cui L, Dai Y, Li W, Feng Y. Chaos based blood glucose noninvasive measurement: new concept and custom study. BIO WEB OF CONFERENCES 2017. [DOI: 10.1051/bioconf/20170802005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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43
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Aernouts B, Sharma S, Gellynck K, Vlaminck L, Cornelissen M, Saeys W. Near-infrared bulk optical properties of goat wound tissue and human serum: consequences for an implantable optical glucose sensor. JOURNAL OF BIOPHOTONICS 2016; 9:1033-1043. [PMID: 26645103 DOI: 10.1002/jbio.201500262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 11/24/2015] [Accepted: 11/24/2015] [Indexed: 06/05/2023]
Abstract
Near-infrared (NIR) spectroscopy offers a promising technological platform for continuous glucose monitoring in the human body. Moreover, these measurements could be performed in vivo with an implantable single-chip based optical sensor. However, a thin tissue layer may grow in the optical path of the sensor. As most biological tissues are highly scattering, they only allow a small fraction of the collimated light to pass, significantly reducing the light throughput. To quantify the effect of a thin tissue layer in the optical path, the bulk optical properties of serum and tissue samples grown on implanted dummy sensors were characterized using double integrating sphere and unscattered transmittance measurements. The estimated bulk optical properties were then used to calculate the light attenuation through a thin tissue layer. The combination band of glucose was found to be the better option, relative to the first overtone band, as the absorptivity of glucose molecules is higher, while the reduction in unscattered transmittance due to tissue growth is less. Additionally, as the wound tissue was found to be highly scattering, the unscattered transmittance of the tissue layer is expected to be very low. Therefore, a sensor configuration which measures the diffuse transmittance and/or reflectance instead was recommended. (a) Dummy sensor; (b) explanted dummy sensor in tissue lump; (c) removal of dummy sensor from tissue lump; and (d) 900 µm slices of tissue lump.
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Affiliation(s)
- Ben Aernouts
- KU Leuven, Department of Biosystems, MeBioS, Kasteelpark Arenberg 30, 3001, Leuven, Belgium
| | - Sandeep Sharma
- KU Leuven, Department of Biosystems, MeBioS, Kasteelpark Arenberg 30, 3001, Leuven, Belgium
| | - Karolien Gellynck
- Ghent University, Department of Basic Medical Sciences, De Pintelaan 185 B3, 9000, Gent, Belgium
| | - Lieven Vlaminck
- Ghent University, Department of Surgery and Anaesthesiology of Domestic Animals, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Maria Cornelissen
- Ghent University, Department of Basic Medical Sciences, De Pintelaan 185 B3, 9000, Gent, Belgium
| | - Wouter Saeys
- KU Leuven, Department of Biosystems, MeBioS, Kasteelpark Arenberg 30, 3001, Leuven, Belgium.
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44
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Keresztes JC, Goodarzi M, Saeys W. Real-time pixel based early apple bruise detection using short wave infrared hyperspectral imaging in combination with calibration and glare correction techniques. Food Control 2016. [DOI: 10.1016/j.foodcont.2016.02.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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45
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Yu ZF, Pirnstill CW, Coté GL. Dual-modulation, dual-wavelength, optical polarimetry system for glucose monitoring. JOURNAL OF BIOMEDICAL OPTICS 2016; 21:87001. [PMID: 27477078 DOI: 10.1117/1.jbo.21.8.087001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 07/08/2016] [Indexed: 05/20/2023]
Abstract
A dual modulation optical polarimetry system utilizing both laser intensity and polarization modulation was designed, built, and tested. The system was designed to reduce complexity and enhance the speed in order to facilitate the reduction of motion-induced time-varying birefringence, which is one of the major limitations to the realization of polarimetry for glucose monitoring in the eye. The high-speed less complex technique was tested using in vitro phantom studies with and without motion artifact introduced. The glucose concentration ranged from 0 to 600 mg/dl and the glucose measurements demonstrated a standard error of prediction to within 8.1 mg/dl without motion and to within 13.9 mg/dl with motion. Our feedback control systems took less than 10 ms to reach stabilization, which is adequately fast to eliminate the effect of time-varying birefringence. The results indicate that this new optical polarimetric approach has improved the speed and reduced the complexity, showing the potential for it to be used for noninvasive glucose measurements.
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Affiliation(s)
- Zhen Fang Yu
- University of Electronic Science and Technology of China, School of Optoelectronic Information, No. 4, Section 2, North Jianshe Road, Chengdu 610054, ChinabTexas A&M University, Department of Biomedical Engineering, 5045 Emerging Technologies, Building 31
| | - Casey W Pirnstill
- Texas A&M University, Department of Biomedical Engineering, 5045 Emerging Technologies, Building 3120 TAMU, College Station, Texas 77843-3120, United StatescWright-Patterson Air Force Base, 711th Human Performance Wing, Human Effectiveness Directorate, Wa
| | - Gerard L Coté
- Texas A&M University, Department of Biomedical Engineering, 5045 Emerging Technologies, Building 3120 TAMU, College Station, Texas 77843-3120, United StatesdTexas A&M University Experiment Station, Center for Remote Health Technologies and Systems, MS3120
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Uwadaira Y, Ikehata A, Momose A, Miura M. Identification of informative bands in the short-wavelength NIR region for non-invasive blood glucose measurement. BIOMEDICAL OPTICS EXPRESS 2016; 7:2729-37. [PMID: 27446701 PMCID: PMC4948625 DOI: 10.1364/boe.7.002729] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 05/26/2016] [Accepted: 06/13/2016] [Indexed: 05/27/2023]
Abstract
The "glucose-linked wavelength" in the short-wavelength near-infrared (NIR) region, in which the light intensity reflected from the hand palm exhibits a good correlation to the blood glucose value, was investigated. We performed 391 2-h carbohydrate tolerance tests (CTTs) using 34 participants and a glucose-linked wavelength was successfully observed in almost every CTT; however, this wavelength varied between CTTs even for the same person. The large resulting data set revealed the distribution of the informative wavelength. The blood glucose values were efficiently estimated by a simple linear regression with clinically acceptable accuracies. The result suggested the potential for constructing a personalized low-invasive blood glucose sensor using short-wavelength NIR spectroscopy.
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Affiliation(s)
- Yasuhiro Uwadaira
- Analytical Science Division, Food Research Institute, NARO, 2-1-12 Kannondai, Tsukuba 305-8642, Japan
| | - Akifumi Ikehata
- Analytical Science Division, Food Research Institute, NARO, 2-1-12 Kannondai, Tsukuba 305-8642, Japan
| | - Akiko Momose
- Food and Cookery Sciences, Kagawa Nutrition University, 3-9-21 Chiyoda, Sakado 350-0288, Japan
| | - Masayo Miura
- Food and Cookery Sciences, Kagawa Nutrition University, 3-9-21 Chiyoda, Sakado 350-0288, Japan
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From near-infrared and Raman to surface-enhanced Raman spectroscopy: progress, limitations and perspectives in bioanalysis. Bioanalysis 2016; 8:1077-103. [PMID: 27079546 DOI: 10.4155/bio-2015-0030] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Over recent decades, spreading environmental concern entailed the expansion of green chemistry analytical tools. Vibrational spectroscopy, belonging to this class of analytical tool, is particularly interesting taking into account its numerous advantages such as fast data acquisition and no sample preparation. In this context, near-infrared, Raman and mainly surface-enhanced Raman spectroscopy (SERS) have thus gained interest in many fields including bioanalysis. The two former techniques only ensure the analysis of concentrated compounds in simple matrices, whereas the emergence of SERS improved the performances of vibrational spectroscopy to very sensitive and selective analyses. Complex SERS substrates were also developed enabling biomarker measurements, paving the way for SERS immunoassays. Therefore, in this paper, the strengths and weaknesses of these techniques will be highlighted with a focus on recent progress.
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48
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Goodarzi M, Saeys W. Selection of the most informative near infrared spectroscopy wavebands for continuous glucose monitoring in human serum. Talanta 2016; 146:155-65. [DOI: 10.1016/j.talanta.2015.08.033] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 08/13/2015] [Accepted: 08/15/2015] [Indexed: 10/23/2022]
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Gerretzen J, Szymańska E, Jansen JJ, Bart J, van Manen HJ, van den Heuvel ER, Buydens LMC. Simple and Effective Way for Data Preprocessing Selection Based on Design of Experiments. Anal Chem 2015; 87:12096-103. [DOI: 10.1021/acs.analchem.5b02832] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jan Gerretzen
- Radboud University, Institute for Molecules and
Materials, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- TI-COAST, Science Park
904, 1098 XH Amsterdam, The Netherlands
| | - Ewa Szymańska
- Radboud University, Institute for Molecules and
Materials, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- TI-COAST, Science Park
904, 1098 XH Amsterdam, The Netherlands
| | - Jeroen J. Jansen
- Radboud University, Institute for Molecules and
Materials, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - Jacob Bart
- AkzoNobel, Supply Chain, Research & Development, Zutphenseweg 10, 7418 AJ Deventer, The Netherlands
| | - Henk-Jan van Manen
- AkzoNobel, Supply Chain, Research & Development, Zutphenseweg 10, 7418 AJ Deventer, The Netherlands
| | | | - Lutgarde M. C. Buydens
- Radboud University, Institute for Molecules and
Materials, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
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