Farbod Shirinichi, Yanjing Gao, Matthew J. Webber, Yichun Wang
{"title":"Recent advances in sensing technologies for fentanyl and its analogs: Challenges and future directions","authors":"Farbod Shirinichi, Yanjing Gao, Matthew J. Webber, Yichun Wang","doi":"10.1016/j.snr.2025.100386","DOIUrl":null,"url":null,"abstract":"<div><div>Fentanyl is a highly potent synthetic opioid which, along with structurally related analogs like carfentanil, is a significant driver of the global epidemic of opioid abuse. These compounds are often added in small amounts to other illicit drugs, found in misrepresented samples, or introduced through unintentional cross-contamination. Their low concentration, structural diversity, extreme potency, and occurrence in complex matrices like biological fluids increase the risk of fatal overdose and complicate their detection. The development of accurate, sensitive, and selective detection technologies is therefore crucial for applications in clinical diagnostics, forensics, public health surveillance, and law enforcement. This review discusses advanced sensors and analytical techniques for identifying fentanyl and its analogs, including colorimetric assays, immunoassays, electrochemical sensors, Raman spectroscopy, liquid chromatography-mass spectrometry (LC-MS), gas chromatography-mass spectrometry (GC–MS), nuclear magnetic resonance spectroscopy (NMR), and Fourier-transform infrared spectroscopy (FTIR). Each method is evaluated on the basis of its sensitivity, selectivity, ease of use, compatibility with complex matrices, stability, and ability to distinguish fentanyl from related analogs and other drugs of abuse. By detailing current advances and limitations in detection methodologies, this comprehensive overview of the field of fentanyl detection offers insights to guide the development of more effective and practical technologies tailored for diverse analytical and research settings.</div></div>","PeriodicalId":426,"journal":{"name":"Sensors and Actuators Reports","volume":"10 ","pages":"Article 100386"},"PeriodicalIF":7.6000,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators Reports","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666053925001043","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Fentanyl is a highly potent synthetic opioid which, along with structurally related analogs like carfentanil, is a significant driver of the global epidemic of opioid abuse. These compounds are often added in small amounts to other illicit drugs, found in misrepresented samples, or introduced through unintentional cross-contamination. Their low concentration, structural diversity, extreme potency, and occurrence in complex matrices like biological fluids increase the risk of fatal overdose and complicate their detection. The development of accurate, sensitive, and selective detection technologies is therefore crucial for applications in clinical diagnostics, forensics, public health surveillance, and law enforcement. This review discusses advanced sensors and analytical techniques for identifying fentanyl and its analogs, including colorimetric assays, immunoassays, electrochemical sensors, Raman spectroscopy, liquid chromatography-mass spectrometry (LC-MS), gas chromatography-mass spectrometry (GC–MS), nuclear magnetic resonance spectroscopy (NMR), and Fourier-transform infrared spectroscopy (FTIR). Each method is evaluated on the basis of its sensitivity, selectivity, ease of use, compatibility with complex matrices, stability, and ability to distinguish fentanyl from related analogs and other drugs of abuse. By detailing current advances and limitations in detection methodologies, this comprehensive overview of the field of fentanyl detection offers insights to guide the development of more effective and practical technologies tailored for diverse analytical and research settings.
期刊介绍:
Sensors and Actuators Reports is a peer-reviewed open access journal launched out from the Sensors and Actuators journal family. Sensors and Actuators Reports is dedicated to publishing new and original works in the field of all type of sensors and actuators, including bio-, chemical-, physical-, and nano- sensors and actuators, which demonstrates significant progress beyond the current state of the art. The journal regularly publishes original research papers, reviews, and short communications.
For research papers and short communications, the journal aims to publish the new and original work supported by experimental results and as such purely theoretical works are not accepted.