Simultaneous Detection of Citric Acid and Oxalic Acid Based on Dual Spectrum and Biomimetic Peroxidase for Urolithiasis Screening with a Fully Automatic Urine Analyzer.
Xianyou SunShuqi ZhouYanchi ZhangChiyu MaYanjie HuShichao TianXinyi WangLiubing KongZhuoru HuangTao LiangHao WanPing WangPublished in: Small (Weinheim an der Bergstrasse, Germany) (2023)
Urolithiasis stands as a prevalent ailment within the urinary system, with hyperoxaluria and hypocitraturia being the most frequent manifestations characterized by excessive oxalic acid (OA) and deficient citric acid (CA) levels in urine. Detecting these compounds in urine quantitatively holds paramount importance for early urolithiasis screening. Existing methodologies fall short in achieving simultaneous and on-site identification of OA and CA, posing challenges for accurate urolithiasis screening. Addressing this concern, the study successfully accomplishes the concurrent identification of OA and CA in urine through a combination of dual-spectral analysis and biomimetic peroxidase utilization. Bovine serum albumin and dithiothreitol-modified copper nanoclusters (BSA-DTT-CuNCs) are employed as biomimetic peroxidases, effectively mitigating interference and enabling the simultaneous determination of OA and CA. The quantification range spans from 0 to 12 mm for OA and 0.5 to 2.5 mm for CA, with detection limits of 0.18 and 0.11 mm, respectively. To facilitate swift and on-location urine analysis, a fully automated urine analyzer (FAUA) is introduced that streamlines the process of biomarker pretreatment and identification within urine samples. Validation with real urine samples from urolithiasis patients demonstrates the method's diagnostic precision, highlighting the dual-spectral technique and analyzer's promising role in urolithiasis screening.
Keyphrases
- simultaneous determination
- knee osteoarthritis
- machine learning
- end stage renal disease
- radiation therapy
- ejection fraction
- optical coherence tomography
- newly diagnosed
- protein kinase
- magnetic resonance imaging
- squamous cell carcinoma
- computed tomography
- peritoneal dialysis
- body mass index
- loop mediated isothermal amplification
- weight loss
- sensitive detection
- locally advanced
- tissue engineering
- high performance liquid chromatography
- rectal cancer
- fluorescent probe