Evidence map›Paper›PMID 41423573›Full record

ArticleMikrochimica acta2025

Optical fiber pH sensor with multi-wedge tip: design and performance evaluations.

Yi Cai, Ziyang Zhang, Jianbo Bao, Qiang Chen, Yong Zhao

Abstract read
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In one paragraph

Article in Mikrochimica acta, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Yi CaiSchool of Intelligent Sensing and Optoelectronic Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China. caiyi@qhd.neu.edu.cn.
Ziyang ZhangSchool of Intelligent Sensing and Optoelectronic Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China.
Jianbo BaoSchool of Intelligent Sensing and Optoelectronic Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China.
Qiang ChenSchool of Intelligent Sensing and Optoelectronic Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China.
Yong ZhaoSchool of Intelligent Sensing and Optoelectronic Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China. zhaoyong@ise.neu.edu.cn.

Funding

Hebei Education Department through the Science and Technology Project BJK2022069Higher Education Scientific Research Project of Hebei Province JZX2023009Natural Science Foundation of Hebei Province F2024501044
6 · The paper itself

Abstract

An optical fiber fluorescent sensor based on nitrogen-doped carbon dots (N-CDs) was developed. The sensor exhibits excellent performance due to the distinct design of the fiber tip. The multiple wedge-shaped (MWS) structure on the fiber tip etched by femtosecond laser enhances the interaction of the sensing probe with the external environment. The N-CDs embedded in the hydrogel film coating the fiber tip exhibit pH-dependent fluorescence characteristics, demonstrating a gradual decrease in emission intensity with increasing pH. The sensor exhibits an excellent linear response (R²=0.9945) across a broad pH range from 3.08 to 12.04. The sensor features a lightweight design with a slender probe, demonstrating practical utility and reliable performance through successful pH measurements in commercial beverages.

Indexed as

Beverage analysisFluorescent optical fiber sensorMultiple wedge-shaped structureNitrogen-doped carbon dotspH value

Identifiers

PMID41423573

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.