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Zhou JW, Zheng XB, Liu HS, Wen BY, Kou YC, Zhang L, Song JJ, Zhang YJ, Li JF. Reliable quantitative detection of uric acid in urine by surface-enhanced Raman spectroscopy with endogenous internal standard. Biosens Bioelectron 2024; 251:116101. [PMID: 38324971 DOI: 10.1016/j.bios.2024.116101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/19/2024] [Accepted: 02/01/2024] [Indexed: 02/09/2024]
Abstract
Abnormal levels of uric acid (UA) in urine serve as warning signs for gout and metabolic cardiovascular diseases, necessitating the monitoring of UA levels for early prevention. However, the current analytical methods employed suffer from limitations in terms of inadequate suitability for home-based applications and the requirement of non-invasive procedures. In this approach, creatinine, a metabolite with a constant excretion rate, was incorporated as an endogenous internal standard (e-IS) for calibration, presenting a rapid, pretreatment-free, and accurate strategy for quantitative determination of UA concentrations. By utilizing urine creatinine as an internal reference value to calibrate the signal fluctuation of surface-enhanced Raman spectroscopy (SERS) of UA, the quantitative accuracy can be significantly improved without the need for an external internal standard. Due to the influence of the medium, UA, which carries a negative charge, is selectively adsorbed by Au@Ag nanoparticles functionalized with hexadecyltrimethylammonium chloride (CTAC) in this system. Furthermore, a highly convenient detection method was developed, which eliminates the need for pre-processing and minimizes matrix interference by simple dilution. The method was applied to the urine detection of different volunteers, and the results were highly consistent with those obtained using the UA colorimetric kit (UACK). The detection time of SERS was only 30 s, which is 50 times faster than UACK. This quantitative strategy of using urinary creatinine as an internal standard to correct the SERS intensity of uric acid is also expected to be extended to the quantitative detection needs of other biomarkers in urine.
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Affiliation(s)
- Jing-Wen Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Department of Physics, Institute of Artificial Intelligence, Xiamen Heart Research Center Affiliated with Xiamen University, Xiamen University, Xiamen, 361005, China
| | - Xiao-Bing Zheng
- Key Laboratory for Modern Measurement Technology and Instruments of Zhejiang Province, China Jiliang University, Hangzhou, 310018, China
| | - Heng-Su Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Department of Physics, Institute of Artificial Intelligence, Xiamen Heart Research Center Affiliated with Xiamen University, Xiamen University, Xiamen, 361005, China
| | - Bao-Ying Wen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Department of Physics, Institute of Artificial Intelligence, Xiamen Heart Research Center Affiliated with Xiamen University, Xiamen University, Xiamen, 361005, China
| | - Yi-Chuan Kou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Department of Physics, Institute of Artificial Intelligence, Xiamen Heart Research Center Affiliated with Xiamen University, Xiamen University, Xiamen, 361005, China
| | - Lin Zhang
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China.
| | - Jing-Jin Song
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Department of Physics, Institute of Artificial Intelligence, Xiamen Heart Research Center Affiliated with Xiamen University, Xiamen University, Xiamen, 361005, China.
| | - Yue-Jiao Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Department of Physics, Institute of Artificial Intelligence, Xiamen Heart Research Center Affiliated with Xiamen University, Xiamen University, Xiamen, 361005, China.
| | - Jian-Feng Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Department of Physics, Institute of Artificial Intelligence, Xiamen Heart Research Center Affiliated with Xiamen University, Xiamen University, Xiamen, 361005, China; Key Laboratory for Modern Measurement Technology and Instruments of Zhejiang Province, China Jiliang University, Hangzhou, 310018, China; Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China.
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Khataee S, Dehghan G, Shaghaghi Z, Khataee A. An enzyme-free sensor based on La-doped CoFe-layered double hydroxide decorated on reduced graphene oxide for sensitive electrochemical detection of urea. Mikrochim Acta 2024; 191:152. [PMID: 38388755 DOI: 10.1007/s00604-024-06221-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/15/2024] [Indexed: 02/24/2024]
Abstract
The successful synthesis of La-doped CoFe LDH@rGO nanocomposite is reported combining the advantages of LDH and rGO and shows promising performances in electrochemical sensors. The structure of the obtained nanocomposite was investigated using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction pattern (XRD), and field emission scanning electron microscope images (FE-SEM). Then, it was directly utilized to construct a carbon paste electrode (CPE) for urea detection. The electrochemical performance of the sensor was evaluated by various electrochemical methods. The La-CoFe LDH@rGO electrode exhibited excellent electrocatalytic properties, including a wide linear working range of 0.001-23.5 mM, very high sensitivity of 1.07 ± 0.023 µA µM-1 cm-2, a low detection limit of 0.33 ± 0.11 µM, and rapid response time of 5 s towards urea detection at the working potential of 0.4 V. Furthermore, the sensor displayed a high selectivity in different matrices, appropriate reproducibility, and long shelf life without activity loss during 3 months of storage under ambient conditions. Further tests were performed on serum and milk samples to confirm the capability of the proposed sensor for practical applications, demonstrating a reasonable recovery of 94.8 to 102% with an RSD value below 3%. Consequently, the synergistic effect of each component led to the good electrocatalytic activity of the modified electrode towards urea.
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Affiliation(s)
- Simin Khataee
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, 51666-16471, Iran
| | - Gholamrez Dehghan
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, 51666-16471, Iran.
| | - Zohreh Shaghaghi
- Coordination Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 51666-16471, Iran.
- Department of Chemical Engineering, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey.
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Chen P, Jiang Y, Cai J, Fan HY, Liang J, Yuan R, Wu H, Wang Y, Cheng S, Zhang Y. Prediction of prognosis in patients with nontraumatic intracranial hemorrhage using blood urea nitrogen-to-creatinine ratio on admission: a retrospective cohort study based on data from the medical information Mart for intensive care-IV database. Front Neurol 2024; 14:1267815. [PMID: 38249742 PMCID: PMC10797125 DOI: 10.3389/fneur.2023.1267815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 12/05/2023] [Indexed: 01/23/2024] Open
Abstract
Background The blood urea nitrogen-to-creatinine ratio (BUNCR) has been proposed as a potential biomarker for critical illness-induced catabolism. However, its specific relevance and significance in the context of non-traumatic intracranial hemorrhage (NTIH) remains unclear. As such, the primary objective of this study was to determine the role of BUNCR in the prognosis of patients with NTIH. Materials and methods All data were sourced from the Medical Information Mart for Intensive Care-IV 2.0 (MIMIC-IV) database. Study outcomes included 30-day and 1-year mortality rates. Univariate and multivariate logistic regression analyses were used to calculate adjusted odds ratio with corresponding 95% confidence interval, and generalized additive model were used to identify both linear and non-linear relationships between BUNCR and mortality rates. A two-piecewise regression model was performed to calculate the saturation effect. Subgroup analyses were performed to evaluate outcome stability in various groups. Results A retrospective study of 3,069 patients with NTIH revealed a U-shaped relationship between BUNCR levels and 30-day/1-year mortality. The two-piecewise regression model showed that the inflection points for 30-day and 1-year mortality were 10.455 and 16.25, respectively. On the left side of the inflection point, the 30-day and 1-year mortality rate decreased by 17.7% (OR = 0.823, 95%CI: 0.705-0.960; p = 0.013) and 5.3% (OR = 0.947, 95%CI: 0.899-0.999; p = 0.046), respectively, per 1 unit increment of BUNCR. On the right side of the inflection point, the 30-day and 1-year mortality rate increased by 1.6% (OR = 1.016, 95%CI: 1.000-1.031; p = 0.046) and 3.6% (OR = 1.036, 95%CI:1.019-1.054; p < 0.001) per 1 unit decrement of BUNCR. Subgroup analyses revealed consistent results across different strata. Conclusion This study identified a nonlinear relationship between BUNCR and mortality in patients with NTIH, indicating that BUNCR may be valuable prognostic marker for early identification and proactive management.
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Affiliation(s)
- Peng Chen
- Department of Neurosurgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - YongAn Jiang
- Department of Neurosurgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - JiaHong Cai
- Department of Neurosurgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Heng Yi Fan
- Department of Neurosurgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - JiaWei Liang
- Department of Neurosurgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - RaoRao Yuan
- Department of Neurosurgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Hao Wu
- Department of Neurosurgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - YongHong Wang
- Department of Neurosurgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - ShiQi Cheng
- Department of Neurosurgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Yan Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
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Hopsort G, Latapie L, Groenen Serrano K, Loubière K, Tzedakis T. Deciphering the human urine matrix: a new approach to simultaneously quantify the main ions and organic compounds by ion chromatography/mass spectrometry (IC-MS). Anal Bioanal Chem 2023; 415:5337-5352. [PMID: 37394521 DOI: 10.1007/s00216-023-04808-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/10/2023] [Accepted: 06/13/2023] [Indexed: 07/04/2023]
Abstract
Analyzing the composition of (human) urine plays a major role in the fields of biology and medicine. Organic molecules (such as urea, creatine) and ions (such as chloride, sulfate) are the major compounds present in urine, the quantification of which allows for the diagnosis of a subject's health condition. Various analytical methods have been reported for studying urine components and validated on the basis of known and referenced compounds. The present work introduces a new method able to simultaneously determine both major organic molecules and ions contained in urine, by combining ion chromatography using a conductimetric detector with mass spectroscopy. The analysis of organic and ionized compounds (anionic and cationic) was achieved in double injections. For quantification, the standard addition method was used. Human urine samples were pre-treated (diluted and filtered) for IC-CD/MS analysis. The analytes were separated in 35 min. Calibration ranges (0-20 mg.L-1) and correlation coefficients (> 99.3%) as well as detection (LODs < 0.75 mg.L-1) and quantification (LOQs < 2.59 mg.L-1) limits were obtained for the main organic molecules (lactic, hippuric, citric, uric, oxalic acids, urea, creatine, and creatinine) and ions (chloride, sulfate, phosphate, sodium, ammonium, potassium, calcium, and magnesium) contained in urine. The intra- and inter-day accuracies of the analytes consistently ranged from 0.1 to 5.0%, and the precision was within 4.0%. For all analytes, no significant matrix effects were observed, and recoveries ranged from 94.9 to 102.6%. Finally, quantitative results of analytes were obtained from 10 different human urine samples.
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Affiliation(s)
- Guillaume Hopsort
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France.
| | - Laure Latapie
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Karine Groenen Serrano
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Karine Loubière
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Theodore Tzedakis
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France.
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Pellá MCG, Simão AR, Valderrama P, Rubira AF. A conventional and chemometric analytical approach to solving urea determination with accuracy and precision. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:2016-2029. [PMID: 37060118 DOI: 10.1039/d3ay00249g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Urea is an essential molecule usually detected using spectroscopy, particularly ultraviolet and visible spectroscopy (UV-vis). However, its detection represents a not always fully acknowledged issue. Its concentration dependency has raised questions about the reliability of the UV-vis results. Derivatization reactions, common alternatives to achieve accuracy and precision with UV-vis measurements, still represent an additional step in the measurement process. Besides the problems mentioned earlier, urea forms complex mixtures in aqueous mediums. Therefore, this work proposes to investigate the accuracy and precision of urea determination by UV-vis spectroscopy in the pure form and derivatized with para-dimethylaminobenzaldehyde. The results show that UV-vis spectroscopy could not quantify urea in both forms with precision and accuracy. On the other hand, when applying multivariate curve resolution with alternating least squares (MCR-ALS) to the UV-vis data, the pure urea analytical signal is mathematically separated. Then, those parameters of merit were successfully achieved.
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Affiliation(s)
| | - Andressa Renatta Simão
- Department of Chemistry, State University of Maringa, Colombo Avenue, 5790, Maringá, 87020-900, Paraná, Brazil.
| | - Patrícia Valderrama
- Federal Technological University of Paraná - Campus Campo Mourão, Via Rosalina Maria dos Santos, 1233, Campo Mourão, 87301-899, Paraná, Brazil
| | - Adley Forti Rubira
- Department of Chemistry, State University of Maringa, Colombo Avenue, 5790, Maringá, 87020-900, Paraná, Brazil.
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Janrod M, Srisa-Art M. Simultaneous colorimetric detection of nephrolithiasis biomarkers using a microfluidic paper-based analytical device. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:752-761. [PMID: 36661131 DOI: 10.1039/d2ay01648f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A microfluidic paper-based analytical device (μPAD) coupled with colorimetric detection was developed for simultaneous determination of urinary oxalate, citrate and uric acid (UA) which are important biomarkers of nephrolithiasis or kidney stones. The colorimetric detections were based on enzymatic reactions using oxalate oxidase and uricase for oxalate and UA, respectively, while an indicator displacement assay (IDA) using a copper murexide complex was applied for citrate detection. The developed μPAD was successfully applied for simultaneous determination of the three biomarkers in urine within 25 min, with linear ranges of 2-40, 5-150, and 5-45 mg L-1 and detection limits of 0.6, 2.9 and 3.1 mg L-1 for oxalate, UA, and citrate, respectively. The values of the percent relative standard deviation (% RSD) were lower than 6.4% for inter-day and intraday measurements of oxalate, citrate and UA standards spiked in urine samples with recovery percentages in the range of 81.0-109.8%, indicating acceptable accuracy and precision of the developed method for determination of the three biomarkers in urine samples. Accordingly, the developed μPAD holds great promise to be a simple, fast, inexpensive, low-sample and reagent volume, reliable and portable tool for simultaneous determination of oxalate, citrate and UA in urine, especially for on-site analysis.
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Affiliation(s)
- Manassawee Janrod
- Electrochemistry and Optical Spectroscopy Center of Excellence, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
| | - Monpichar Srisa-Art
- Electrochemistry and Optical Spectroscopy Center of Excellence, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
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Paper-based sensor depending on the Prussian blue pH sensitivity: Smartphone-assisted detection of urea. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lai Y, Fakhri A, Janani BJ. Synergistic activities of silver indium sulfide/nickel molybdenum sulfide nanostructures anchored on clay mineral for light-driven bactericidal performance, and detection of uric acid from gout patient serum. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 234:112526. [PMID: 35908358 DOI: 10.1016/j.jphotobiol.2022.112526] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/04/2022] [Accepted: 07/11/2022] [Indexed: 12/30/2022]
Abstract
In this study, the hydrothermal method was used to synthesis of silver indium sulfide/nickel molybdenum sulfide (AgInS2/NiMoS4) nanostructure and decorated on Palygorskite (Plg) as an excellent carrier of antibacterial materials. The performance of the prepared AgInS2/NiMoS4/Plg composites was investigated for light-driven antibacterial process and detection of uric acid from biological samples. The result shows the highest antibacterial activity of the AgInS2/NiMoS4/Plg with the minimum inhibitory concentrations about 0.2-0.3 mg/mL. The prepared AgInS2/NiMoS4/Plg as sensor depicted enhanced peroxidase-like activity for detection of acid uric. The detection limit of acid uric by AgInS2/NiMoS4/Plg was about 26.1 nM. Therefore, the AgInS2/NiMoS4/Plg can be developed in the bactericidal process and sensing in complex biological systems.
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Affiliation(s)
- Ying Lai
- Department of Life Science and Agriculture, Zhoukou Normal University, Zhoukou, Henan 466001, China.
| | - Ali Fakhri
- Nanotechnology Laboratory, Nano Smart Science Institute, Tehran, Iran; Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
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