Lulu Zhang, Lingbo Liu, Jiang Guo, Jingdong Zhang, Kai Yan
{"title":"激光诱导wo3修饰的多孔石墨烯用于便携式自供电光电电化学感应。","authors":"Lulu Zhang, Lingbo Liu, Jiang Guo, Jingdong Zhang, Kai Yan","doi":"10.1007/s00604-025-07532-z","DOIUrl":null,"url":null,"abstract":"<div><p>Photoelectrochemical (PEC) biosensors have attracted significant interest due to their inherent advantages of high sensitivity, excellent biocompatibility, and ease of miniaturization. In this study, efficient WO<sub>3</sub>-based photoelectrodes were developed via a novel one-step laser-scribing strategy, enabling the <i>in-situ</i> synthesis of patterned, flexible WO<sub>3</sub>-decorated porous graphene electrodes (LIG-WO<sub>3</sub>) using H<sub>2</sub>WO<sub>4</sub>-coated polyimide (PI) film as the precursor. The localized high temperature and reducing atmosphere generated during laser irradiation simultaneously convert the PI into laser-induced graphene and decompose H<sub>2</sub>WO<sub>4</sub>, yielding photoactive WO<sub>3</sub> and conductive metallic W nanoparticles embedded in the porous graphene matrix. The optimized LIG-WO<sub>3</sub> photoelectrode exhibits a rapid photoelectric response under visible Light illumination at 0 V applied bias, enabling self-powered PEC sensing. A visible light-driven, self-powered PEC aptasensor was fabricated by immobilizing an oxytetracycline (OTC) specific aptamer onto the photoelectrode surface. The Sensor exhibits a Linear response toward OTC in the range 1.0 -1.0 × 10<sup>3</sup> nM, with a low detection Limit of 0.68 nM (S/N = 3) as well as high stability, reproducibility and applicability in real sample analysis. This work demonstrates the significant promise of one-step laser-induced WO<sub>3</sub> electrodes for advancing self-powered PEC sensing applications.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":705,"journal":{"name":"Microchimica Acta","volume":"192 10","pages":""},"PeriodicalIF":5.3000,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Laser-induced WO3-decorated porous graphene for portable and self-powered photoelectrochemical aptasensing\",\"authors\":\"Lulu Zhang, Lingbo Liu, Jiang Guo, Jingdong Zhang, Kai Yan\",\"doi\":\"10.1007/s00604-025-07532-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Photoelectrochemical (PEC) biosensors have attracted significant interest due to their inherent advantages of high sensitivity, excellent biocompatibility, and ease of miniaturization. In this study, efficient WO<sub>3</sub>-based photoelectrodes were developed via a novel one-step laser-scribing strategy, enabling the <i>in-situ</i> synthesis of patterned, flexible WO<sub>3</sub>-decorated porous graphene electrodes (LIG-WO<sub>3</sub>) using H<sub>2</sub>WO<sub>4</sub>-coated polyimide (PI) film as the precursor. The localized high temperature and reducing atmosphere generated during laser irradiation simultaneously convert the PI into laser-induced graphene and decompose H<sub>2</sub>WO<sub>4</sub>, yielding photoactive WO<sub>3</sub> and conductive metallic W nanoparticles embedded in the porous graphene matrix. The optimized LIG-WO<sub>3</sub> photoelectrode exhibits a rapid photoelectric response under visible Light illumination at 0 V applied bias, enabling self-powered PEC sensing. A visible light-driven, self-powered PEC aptasensor was fabricated by immobilizing an oxytetracycline (OTC) specific aptamer onto the photoelectrode surface. The Sensor exhibits a Linear response toward OTC in the range 1.0 -1.0 × 10<sup>3</sup> nM, with a low detection Limit of 0.68 nM (S/N = 3) as well as high stability, reproducibility and applicability in real sample analysis. This work demonstrates the significant promise of one-step laser-induced WO<sub>3</sub> electrodes for advancing self-powered PEC sensing applications.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":705,\"journal\":{\"name\":\"Microchimica Acta\",\"volume\":\"192 10\",\"pages\":\"\"},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2025-09-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Microchimica Acta\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00604-025-07532-z\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, ANALYTICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microchimica Acta","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s00604-025-07532-z","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
Laser-induced WO3-decorated porous graphene for portable and self-powered photoelectrochemical aptasensing
Photoelectrochemical (PEC) biosensors have attracted significant interest due to their inherent advantages of high sensitivity, excellent biocompatibility, and ease of miniaturization. In this study, efficient WO3-based photoelectrodes were developed via a novel one-step laser-scribing strategy, enabling the in-situ synthesis of patterned, flexible WO3-decorated porous graphene electrodes (LIG-WO3) using H2WO4-coated polyimide (PI) film as the precursor. The localized high temperature and reducing atmosphere generated during laser irradiation simultaneously convert the PI into laser-induced graphene and decompose H2WO4, yielding photoactive WO3 and conductive metallic W nanoparticles embedded in the porous graphene matrix. The optimized LIG-WO3 photoelectrode exhibits a rapid photoelectric response under visible Light illumination at 0 V applied bias, enabling self-powered PEC sensing. A visible light-driven, self-powered PEC aptasensor was fabricated by immobilizing an oxytetracycline (OTC) specific aptamer onto the photoelectrode surface. The Sensor exhibits a Linear response toward OTC in the range 1.0 -1.0 × 103 nM, with a low detection Limit of 0.68 nM (S/N = 3) as well as high stability, reproducibility and applicability in real sample analysis. This work demonstrates the significant promise of one-step laser-induced WO3 electrodes for advancing self-powered PEC sensing applications.
期刊介绍：
As a peer-reviewed journal for analytical sciences and technologies on the micro- and nanoscale, Microchimica Acta has established itself as a premier forum for truly novel approaches in chemical and biochemical analysis. Coverage includes methods and devices that provide expedient solutions to the most contemporary demands in this area. Examples are point-of-care technologies, wearable (bio)sensors, in-vivo-monitoring, micro/nanomotors and materials based on synthetic biology as well as biomedical imaging and targeting.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
