Sensors and Actuators B: Chemical最新文献_第7页

A portable and low-cost optical device for pigment-based taxonomic classification of microalgae using machine learning 利用机器学习对微藻类进行基于色素的分类的便携式低成本光学设备

IF 8 1区化学

Sensors and Actuators B: Chemical Pub Date : 2024-10-21 DOI: 10.1016/j.snb.2024.136819

{"title":"A portable and low-cost optical device for pigment-based taxonomic classification of microalgae using machine learning","authors":"","doi":"10.1016/j.snb.2024.136819","DOIUrl":"10.1016/j.snb.2024.136819","url":null,"abstract":"<div><div>The proliferation of certain phytoplankton species may lead to harmful algal blooms (HABs) that can affect living resources and human health. Therefore, an accurate identification of phytoplankton populations is essential for the sustainable management of some activities relevant for the blue economy, such as aquaculture, being also relevant for environmental monitoring and marine research purposes. Microalgae taxonomic discrimination, based on their pigment composition, is a versatile and promising technique to detect and identify potential HABs. In this work, a portable and low-cost device for taxonomic identification of microalgae, based on the pigment composition of 16 species belonging to 6 different phyla, was developed. It uses the fluorescence intensity signal emitted by each species at three wavelengths (575 nm, 680 nm and 730 nm) when excited at five wavelengths (405 nm, 450 nm, 500 nm, 520 nm and 623 nm) to create a fluorescence signature for each species. Furthermore, several machine learning classifiers were studied using this fluorescence signature as features to train and classify each species according to their respective taxonomic group. The Extreme Gradient Boosting (XGBoost) classifier was able to correctly predict microalgae monocultures with 97 % accuracy at the phylum level and 92 % accuracy at the order level. The obtained results confirm the potential of this technique for fast, accurate and low-cost identification of microalgae.</div></div>","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zr-MOF-based substrate with inherent internal standards facilitates reliable SERS analysis of sulfonamide antibiotics 基于 Zr-MOF 的底物具有内在标准，有助于对磺胺类抗生素进行可靠的 SERS 分析

IF 8 1区化学

Sensors and Actuators B: Chemical Pub Date : 2024-10-21 DOI: 10.1016/j.snb.2024.136816

{"title":"Zr-MOF-based substrate with inherent internal standards facilitates reliable SERS analysis of sulfonamide antibiotics","authors":"","doi":"10.1016/j.snb.2024.136816","DOIUrl":"10.1016/j.snb.2024.136816","url":null,"abstract":"<div><div>A multifunctional structure comprising gold nanoparticles immobilized within a zirconium-based metal-organic framework (AuNPs/Zr-MOF) was systematically designed. With the capabilities of analyte enrichment, Raman signal enhancement and internal standard calibration, the as-prepared AuNPs/Zr-MOF substrates demonstrate the outstanding SERS sensing performance toward the representative sulfonamide antibiotics (SAs), sulfadiazine, sulfamerazine, sulfamethazine and sulfaquinoxaline. For the first time, these four SAs are detected by SERS in real honey samples at levels of 2.8 ∼ 5.2 ng·g−1 within 10 min. The extensive π-bond conjugated system of Zr-MOF significantly enhances the concentration of SAs through π-π interactions. The entrapped SAs are adsorbed perpendicularly onto the surface of Au via coordinated interactions between Au and two oxygen atoms, or between Au and the terminal amino group. To achieve reliable quantitative analysis, the inherent vibration of the Zr-MOF structure was used as an internal standard label. Combined with a simple clean-up protocol, the established SERE sensing method is superior to conventional methods in terms of time, while achieving the impressive sensitivity. This study presents a robust SERS-based approach for the rapid detection and monitoring of multiple analytes.</div></div>","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of ratiometric molecular imprinting electrochemiluminescence sensor based on polyethyleneimine hydrogel loading layered bimetallic hydroxide and MIL-125@Ru(bpy)32+ for sensitive tetracycline detection 制备基于聚乙烯亚胺水凝胶负载层状双金属氢氧化物和 MIL-125@Ru(bpy)32+ 的比率分子印迹电化学发光传感器，用于灵敏检测四环素

IF 8 1区化学

Sensors and Actuators B: Chemical Pub Date : 2024-10-21 DOI: 10.1016/j.snb.2024.136815

{"title":"Fabrication of ratiometric molecular imprinting electrochemiluminescence sensor based on polyethyleneimine hydrogel loading layered bimetallic hydroxide and MIL-125@Ru(bpy)32+ for sensitive tetracycline detection","authors":"","doi":"10.1016/j.snb.2024.136815","DOIUrl":"10.1016/j.snb.2024.136815","url":null,"abstract":"<div><div>In this work, layered Co-Ni bimetallic hydroxide was synthesized and combined with polyethyleneimine hydrogel (PEI@LDH) as substrate material, then the metal-organic framework MIL-125 loaded Ru(bpy)32+ (MIL@Ru) was added as single luminophore, followed by electrochemical deposition of tetracycline (TC) imprinted copolymer of hydroquinone and o-phenylenediamine to construct an electrochemiluminescent (ECL) sensor for TC detection. The stable and sensitive luminophore MIL@Ru associating with co-reactant K2S2O8 in the solution could cause a cathode ECL signal sensing TC, it could also associate with the immobilized co-reactant PEI hydrogel to produce a stable anode ECL signal acting as a reference. The LDH had catalysis and could efficiently amplify both anode and cathode ECL signals. Therefore, the constructed single luminophore based ratiometric ECL sensor displayed high selectivity, sensitivity and reproducibility. Under the selected testing conditions, the linear response range was 0.01 μmol L−1 to 1 mmol L−1 and the detection limit reached 8 nmol L−1. Its good practicability was validated by determining TC in different actual samples. Hence, the ratiometric MIP-ECL sensor was quite promising.</div></div>","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrothermal and humidity-responsive flexible actuator with asymmetric eutectic gallium-indium/cellulose nanofiber composite film printed by electrohydrodynamics 利用电流体力学印刷的非对称共晶镓铟/纤维素纳米纤维复合薄膜制成的电热和湿度响应型柔性致动器

IF 8 1区化学

Sensors and Actuators B: Chemical Pub Date : 2024-10-21 DOI: 10.1016/j.snb.2024.136809

{"title":"Electrothermal and humidity-responsive flexible actuator with asymmetric eutectic gallium-indium/cellulose nanofiber composite film printed by electrohydrodynamics","authors":"","doi":"10.1016/j.snb.2024.136809","DOIUrl":"10.1016/j.snb.2024.136809","url":null,"abstract":"<div><div>High-performance dual-responsive flexible actuators are crucial for soft robots, artificial muscles, and wearable devices. However, a simple and fast preparation of dual-responsive flexible actuators with excellent actuation performance remains a challenge. Herein, an electrohydrodynamic (EHD) printing method is proposed to prepare eutectic gallium-indium/cellulose nanofiber (EGaIn/CNF) film with asymmetric structure. EGaIn/CNF film is assembled with polyethylene (PE) with high anisotropic thermal expansion coefficient to fabricate an EGaIn/CNF-PE bilayer flexible actuator with gradient structure. Through the collaborative design of materials and structures, combined with the high conductivity of gradient-distributed EGaIn, excellent hygrosensitivity of gradient-distributed CNF, and high thermal expansion coefficient of PE, the EGaIn/CNF-PE flexible actuator exhibits excellent actuation performance under electrothermal and humidity response. The flexible actuator achieves a bending curvature of 3.3 cm−1 within 12 s under a low voltage of 4 V, and bending curvature of 3.06 cm−1 under a 30 % change in environmental humidity. Moreover, the fabricated flexible actuator is applied in the fields of flexible gripper, smart flexible switch, and biomimetic flower, which shows its commendable practical application potential.</div></div>","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Discovery of peroxynitrite elevation in zinc ion-induced acute lung injury with an activatable near-infrared fluorogenic probe 利用可激活的近红外荧光探针发现锌离子诱导的急性肺损伤中过氧化亚硝酸升高的现象

IF 8 1区化学

Sensors and Actuators B: Chemical Pub Date : 2024-10-21 DOI: 10.1016/j.snb.2024.136826

{"title":"Discovery of peroxynitrite elevation in zinc ion-induced acute lung injury with an activatable near-infrared fluorogenic probe","authors":"","doi":"10.1016/j.snb.2024.136826","DOIUrl":"10.1016/j.snb.2024.136826","url":null,"abstract":"<div><div>Particulate matter derived from environmental pollution might contain zinc ions (Zn2+), and inhaling these particles exacerbates lung tissue's inflammatory response, impairing lung function and increasing the risk of acute lung injury (ALI). Zn2+ is known to contribute to oxidative stress, leading to elevated levels of reactive oxygen species such as peroxynitrite (ONOO-), which play a key role in the pathogenesis of ALI. Herein, a novel near-infrared fluorogenic probe, DCI-BT, was prepared for the specific detection of ONOO- based on the strategy of oxidative hydrolysis of imine to break into aldehyde. The response of DCI-BT to ONOO- was found to be extremely fast, and the addition of ONOO- would enhance its fluorescence intensity. Cell experiments showed that DCI-BT could efficiently indicate the changes in cellular ONOO- levels. Furthermore, employing DCI-BT, the Zn2+-induced endogenous ONOO- production in cells was successfully visualized, confirming that prolonged exposure to Zn2+ triggered cellular oxidative stress. Finally, the application of DCI-BT in the mice model of ALI was evaluated, and the results revealed that it had good biosafety and could effectively track the changes in ONOO- levels in the Zn2+-induced ALI model. Therefore, DCI-BT held promise as a valuable chemical tool for diagnosing and treating environmentally induced oxidative stress-related diseases.</div></div>","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel double-door-opening sensor for visual determination of cardiac troponin I based on DNA hydrogel and bimetallic nanozyme 基于 DNA 水凝胶和双金属纳米酶的用于目测心肌肌钙蛋白 I 的新型双开门传感器

IF 8 1区化学

Sensors and Actuators B: Chemical Pub Date : 2024-10-21 DOI: 10.1016/j.snb.2024.136794

{"title":"A novel double-door-opening sensor for visual determination of cardiac troponin I based on DNA hydrogel and bimetallic nanozyme","authors":"","doi":"10.1016/j.snb.2024.136794","DOIUrl":"10.1016/j.snb.2024.136794","url":null,"abstract":"<div><div>Cardiac troponin I (cTnI), as a cardiac biomarker, holds significant importance in the diagnosis of acute myocardial infarction. However, the current detection methods mostly require specialized personnel and large analytical instruments, making it difficult to achieve convenient and on-site testing. This situation leads to delayed disease diagnosis and treatment, that increases patient suffering, and reduces the cure rate. This strategy presents the development of a portable visual DNA hydrogel colorimetric sensing platform based on a smartphone. Utilizing dual-mode detection with ultraviolet signals and solution colorimetry, the platform achieves ultra-sensitive and real-time detection of cTnI. Furthermore, optimization of detection conditions, such as the amount of polyacrylamide, reaction time, aptamer concentration, encapsulation of the nanozyme, incubation time, and reaction temperature, were performed based on this platform. The proposed ultraviolet and visual detection platforms exhibited good linear relationships with the signal within the ranges of 0.003 ng mL−1 to 10.00 ng mL−1 and 0.01 ng mL−1 to 7.00 ng mL−1, with detection limits of 2.57 pg mL−1 and 0.013 pg mL−1, respectively. Additionally, utilizing 3D printing technology, a portable detection device was designed and employed for the detection of cTnI concentrations in human serum samples. Whatever in the initial and spiked samples, the results showed high sensitivities. The sensitivity and convenience of the sensor in detecting cTnI make it promising for home testing of patients, with broad market prospects.</div></div>","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conductive metal-organic framework for ppb-concentration and highly selective SAW hydrogen sulfide sensing at room temperature 用于室温下 ppb 浓度和高选择性声表面波硫化氢传感的导电金属有机框架

IF 8.4 1区化学

Sensors and Actuators B: Chemical Pub Date : 2024-10-21 DOI: 10.1016/j.snb.2024.136817

Baile Cui, Xiaoyan Lang, Zixuan Ren, Lina Cheng, Dachi Yang, Wen Wang

{"title":"Conductive metal-organic framework for ppb-concentration and highly selective SAW hydrogen sulfide sensing at room temperature","authors":"Baile Cui, Xiaoyan Lang, Zixuan Ren, Lina Cheng, Dachi Yang, Wen Wang","doi":"10.1016/j.snb.2024.136817","DOIUrl":"https://doi.org/10.1016/j.snb.2024.136817","url":null,"abstract":"Hydrogen sulfide (H2S) sensing is utilized for monitoring the concentration in environment protection and industrial process control, of which high selectivity and ppb detection limit are required. Here, a ppb-concentration and highly selective surface acoustic wave (SAW) H2S sensing has been developed with the Cu3(HHTP)2 MOFs conductive metal-organic frameworks (MOFs), which have been synthesized by connecting Cu2+ with the organic ligands via hydrothermal process. Typically, as-prepared Cu3(HHTP)2 MOFs take on shapes including nanoparticles and nanorods. Beneficially, the SAW H2S sensing presents excellent selectivity to H2S and enables to detection of H2S as low as 6 ppb at room temperature (~ 26 oC). Remarkably, the SAW sensor prototypes exhibit high sensitivity (0.02 mV/ppb) to 50-2000 ppb H2S, fast response (T90: 281 s) and 46 day-long stability at room temperature. Theoretically, such excellent H2S SAW sensing performance might be attributed to the interaction between Cu ions and H2S molecules and the strong acoustoelectric effect of SAW. Practically, our ppb-concentration and highly selective H2S SAW sensing have the potential in the real-time detection of H2S.","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A polydiacetylene (PDA)-based colorimetric sensor for on-site cyanide anion monitoring integrated with a lateral flow assay platform 基于聚二乙炔 (PDA) 的比色传感器，用于现场氰化阴离子监测，并与侧向流分析平台集成

IF 8 1区化学

Sensors and Actuators B: Chemical Pub Date : 2024-10-20 DOI: 10.1016/j.snb.2024.136808

{"title":"A polydiacetylene (PDA)-based colorimetric sensor for on-site cyanide anion monitoring integrated with a lateral flow assay platform","authors":"","doi":"10.1016/j.snb.2024.136808","DOIUrl":"10.1016/j.snb.2024.136808","url":null,"abstract":"<div><div>An advanced sensing platform for the on-site and real-time monitoring of cyanide (CN−) pollution was developed, addressing the key challenges of enhancing the selectivity and sensitivity, whilst simplifying the sensing process. This platform features a novel colorimetric sensor (PDA-BMN) created by incorporating a receptor for CN− recognition within a polydiacetylene (PDA) conjugated polymer system. The interaction of CN− with the receptor distorted the π-conjugated backbone, causing a distinct color change from blue to orange, with a limit of detection (LOD) of 0.55 µM, thereby highlighting its high sensitivity. The PDA-BMN system was integrated into a lateral flow assay (LFA) strip to facilitate on-site monitoring. The LFA strip was strategically designed with a partially pressed zone to reduce the fluid flow rate, enhance the reaction time, and increase the probability of interaction with the PDA-BMN sensor. This innovation resulted in a significant colorimetric transition, enabling the rapid and sensitive detection of CN− without the requirement for analytical instruments. This study demonstrates the effectiveness of combining PDA and LFA systems for real-time environmental monitoring, offering a robust, efficient, and user-friendly solution for detecting CN− pollution.</div></div>","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.0,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of red fluorescent probe for visual detection of N2H4 via nanofiber membrane and its application in environmental analysis and biological imaging 纳米纤维膜视觉检测 N2H4 的红色荧光探针的开发及其在环境分析和生物成像中的应用

IF 8.4 1区化学

Sensors and Actuators B: Chemical Pub Date : 2024-10-20 DOI: 10.1016/j.snb.2024.136807

Xiao-Yan Sun, Fan-Feng Hua, Tian-Wen Bai, Ying-Long Fu

{"title":"Development of red fluorescent probe for visual detection of N2H4 via nanofiber membrane and its application in environmental analysis and biological imaging","authors":"Xiao-Yan Sun, Fan-Feng Hua, Tian-Wen Bai, Ying-Long Fu","doi":"10.1016/j.snb.2024.136807","DOIUrl":"https://doi.org/10.1016/j.snb.2024.136807","url":null,"abstract":"Hydrazine (N2H4) is widely used in most industrial production. It is a harmful environmental pollutant and has strong toxicity to living organisms. Hence, it is imperative to employ approach for the real-time monitoring and tracking of N2H4. In this study, we developed the fluorescent probe DYY, incorporating an acetyl group as the recognition moiety, to achieve efficient detection of N2H4. The findings revealed that DYY exhibits excellent sensitivity (with a detection limit of 81 nM) and a wide pH range (2-8) in the detection of N2H4. Notably, upon the addition of N2H4, the color of the DYY solution transitioned from purple to blue, accompanied the fluorescence intensity increased by 11-fold increase in 643 nm. In addition, DYY demonstrated its capability in detecting N2H4 contamination within environmental water samples. Significantly, polymer nanofibers embedded with DYY were fabricated through the process of electrospinning, allowing for the visual identification of N2H4. Furthermore, it showed excellent performance in detecting N2H4 in HepG2 cells and zebrafish, demonstrating its potential for labeling N2H4 in living systems. Therefore, we are confident that this probe holds significant potential for environmental analysis and the detection of health indicators in living organisms.","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two-Component Heterojunction-based Ambipolar Field Eﬀect Transistors for Improved Sensitivity of Ammonia Sensor 用于提高氨气传感器灵敏度的基于双组分异质结的双极性场效应晶体管

IF 8.4 1区化学

Sensors and Actuators B: Chemical Pub Date : 2024-10-20 DOI: 10.1016/j.snb.2024.136814

Xiaoyue Shan, Jiagen Lai, Guanyu Qiao, Ziqiang Hu, Zichun Cong, Qingfang Ma, Qinghua Pan, Guoqiao Lai, Jian Song, Jianhua Gao

{"title":"Two-Component Heterojunction-based Ambipolar Field Eﬀect Transistors for Improved Sensitivity of Ammonia Sensor","authors":"Xiaoyue Shan, Jiagen Lai, Guanyu Qiao, Ziqiang Hu, Zichun Cong, Qingfang Ma, Qinghua Pan, Guoqiao Lai, Jian Song, Jianhua Gao","doi":"10.1016/j.snb.2024.136814","DOIUrl":"https://doi.org/10.1016/j.snb.2024.136814","url":null,"abstract":"To improve the sensing response of ammonia (NH3) sensors, a two-dimensional configuration molecule 5,11-di-naphthalen-2-yl-6,12-dihydro-indolocarbazole (ICZ-NA) was designed and synthesized as the p-channel organic semiconductor material. Bilayer organic field-effect transistor (OFET) was constructed with ICZ-NA and N,N’-bis(n-octyl)-2,6-dicyanonaphthalene-1,4,5,8-bis(dicarboximide (NDI-8CN2) as p-type and n-type active semiconductor materials respectively, and the two-component devices exhibits excellent ambipolar FET performance. The thin film transistors based on single-component and two-component were further used as sensors for ammonia detection. Compared with the sensors based on NDI-8CN2, the sensitivity and selectivity of ammonia detection based on two-component sensors have been greatly improved, and the ratio of current change can still be maintained over 3.65%, when the gas concentration lower to 10 ppb level. The higher sensing response and low limit of detection demonstrate that the two-component ambipolar configuration is a highly effective method for improving sensing response capability.","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0