1
|
Saya L, Ratandeep, Arya B, Rastogi K, Verma M, Rani S, Sahu PK, Singh MR, Singh WR, Hooda S. Recent advances in sensing toxic nerve agents through DMMP model simulant using diverse nanomaterials-based chemical sensors. Talanta 2024; 272:125785. [PMID: 38394750 DOI: 10.1016/j.talanta.2024.125785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 02/08/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024]
Abstract
Recent terrorist assaults have demonstrated the need for the exploration and design of sustainable and stable chemical sensors with quick reaction times combined with great sensitivity. Among several classes of chemical warfare agents, nerve agents have been proven to be the most hazardous. Even short-term exposure to them can result in severe toxic effects. Human beings inadvertently face the after-effects of these chemicals even several years after these chemicals were used. Due to the extreme toxicity and difficulty in handling, dimethyl methylphosphonate (DMMP), a simulant of nerve agents with much lesser toxicity, is frequently used in laboratories as a substitute. Having a chemical structure almost identical to those of nerve agents, DMMP can mimic the properties of nerve agents. Through this paper, authors have attempted to introduce the evolution of several chemical sensors used to detect DMMP in recent years, including field-effect transistors, chemicapacitors, chemiresistors, and mass-sensitive sensors. A detailed discussion of the role of nanomaterials as chemical sensors in the detection of DMMP has been the main focus of the work through a comprehensive overview of the research on gas sensors that have been reported making use of the properties of a wide range of nanomaterials.
Collapse
Affiliation(s)
- Laishram Saya
- Department of Chemistry, Sri Venkateswara College (University of Delhi), Dhaula Kuan, New Delhi 110021, India; Department of Chemistry, Manipur University, Canchipur, Imphal 795003, Manipur, India; Polymer Research Laboratory, Department of Chemistry, Acharya Narendra Dev College (University of Delhi), Govindpuri, Kalkaji, New Delhi, 110019, India.
| | - Ratandeep
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi 175075, Himachal Pradesh, India
| | - Bipasa Arya
- Polymer Research Laboratory, Department of Chemistry, Acharya Narendra Dev College (University of Delhi), Govindpuri, Kalkaji, New Delhi, 110019, India
| | - Kanjika Rastogi
- Polymer Research Laboratory, Department of Chemistry, Acharya Narendra Dev College (University of Delhi), Govindpuri, Kalkaji, New Delhi, 110019, India
| | - Manisha Verma
- Department of Physics, Acharya Narendra Dev College, (University of Delhi), Govindpuri, Kalkaji, New Delhi, 110019, India
| | - Sanjeeta Rani
- Department of Physics, Acharya Narendra Dev College, (University of Delhi), Govindpuri, Kalkaji, New Delhi, 110019, India
| | - Prasanta Kumar Sahu
- Department of Chemistry, Shivaji College, (University of Delhi), Raja Garden, New Delhi, 110027, India
| | - M Ramananda Singh
- Department of Chemistry, Kirorimal College, (University of Delhi), Delhi, 110007, India
| | - W Rameshwor Singh
- Department of Chemistry, Manipur University, Canchipur, Imphal 795003, Manipur, India.
| | - Sunita Hooda
- Polymer Research Laboratory, Department of Chemistry, Acharya Narendra Dev College (University of Delhi), Govindpuri, Kalkaji, New Delhi, 110019, India.
| |
Collapse
|
2
|
Ubaidah Noh T, Abd. Aziz A, Mahmad A, Badrol N. Impedance–based haptenation of skin sensitizers with self–assembled monolayer of gold nanoparticles and cysteine modified screen printed carbon electrode. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
3
|
Bui A, Guillen SG, Sua A, Nguyen TC, Ruiz A, Carachure L, Weber MD, Cortez A, Tian F. Iron-containing metal-organic framework thin film as a drug delivery system. Colloids Surf A Physicochem Eng Asp 2022; 650:129611. [PMID: 35860194 PMCID: PMC9289567 DOI: 10.1016/j.colsurfa.2022.129611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Selective bulk metal-organic frameworks (MOFs) have exhibited great potential in biomedical applications. However, topical treatments and drug elution coatings will require uniform films as drug delivery systems. This work studies the use of surface supportive MOF thin films for drug loading and releasing. More specifically, we focus on an iron-containing MOF, MIL-88B(Fe), on a COOH-terminated self-assembled monolayer (SAM) modified Au surface for encapsulating ibuprofen as a model drug. A combined experimental and computational approach was employed to study the fabrication of MIL-88B(Fe) film on functionalized Au surfaces. We used several surface characterization techniques, including infrared spectroscopy and scanning electron microscopy, to confirm the chemical composition and morphological changes of the surface after each modification step. The resulting MIL-88B(Fe) thin film was found capable of loading 8.7 wt% of ibuprofen using quartz crystal microbalance analysis. Moreover, we applied cluster simulations to study the binding mechanisms of MIL-88B(Fe) and its interactions with ibuprofen based on the density functional theory (DFT). The unsaturated Fe site was confirmed kinetically more favorable to bind to the COOH-end group on the SAM. Hydrogen bonding and π-CH interactions between ibuprofen and MIL-88B(Fe) promote ibuprofen being retained inside of the cages of MIL-88B(Fe).
Collapse
Affiliation(s)
- Angela Bui
- Department of Chemistry and Biochemistry, California State University
Long Beach, Long Beach, CA 90840, USA
| | - Steven G. Guillen
- Department of Chemistry and Biochemistry, California State University
Long Beach, Long Beach, CA 90840, USA
| | - Andy Sua
- Department of Chemistry and Biochemistry, California State University
Long Beach, Long Beach, CA 90840, USA
| | - Travis C. Nguyen
- Department of Chemistry and Biochemistry, California State University
Long Beach, Long Beach, CA 90840, USA
| | - Angel Ruiz
- Department of Chemistry and Biochemistry, California State University
Long Beach, Long Beach, CA 90840, USA
| | - Lester Carachure
- Department of Chemistry and Biochemistry, California State University
Long Beach, Long Beach, CA 90840, USA
| | - Mark D.R. Weber
- Department of Chemistry and Biochemistry, California State University
Long Beach, Long Beach, CA 90840, USA
| | - Araseli Cortez
- Department of Chemistry and Biochemistry, California State University
Long Beach, Long Beach, CA 90840, USA
| | - Fangyuan Tian
- Department of Chemistry and Biochemistry, California State University
Long Beach, Long Beach, CA 90840, USA
| |
Collapse
|
4
|
Noushin T, Hossain NI, Tabassum S. IoT-Enabled Integrated Smart Wound Sensor for Multiplexed Monitoring of Inflammatory Biomarkers at the Wound Site. FRONTIERS IN NANOTECHNOLOGY 2022. [DOI: 10.3389/fnano.2022.851041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Chronic wounds that stall at the inflammatory phase of healing may create several life-threatening complications such as tissue damage, septicemia, and organ failures. In order to prevent these adverse clinical outcomes and accelerate the wound healing process, it is crucial to monitor the wound status in real-time so that immediate therapeutic interventions can be implemented. In addition, continuous monitoring of the wound status can prevent drug overdose at the wound site, leading to on-demand and personalized drug delivery. Inflammatory mediators, such as Interleukin-6 (IL-6) and Interleukin-10 (IL-10) are promising indicators for the progression of wound healing and predictors of disease severity. Toward this end, this work reports a flexible wound patch for multiplexed monitoring of IL-6 and IL-10 at the wound site in order to provide real-time feedback on the inflammation phase of the wound. An optimized composition of gold nanoparticles integrated multiwalled carbon nanotube was demonstrated to improve sensor performance substantially. The sensor also exhibited excellent repeatable, reversible, and drift characteristics. A miniaturized Internet-of-things (IoT)-enabled potentiostat was also developed and integrated with the flexible sensor to realize a wearable system. This IoT-enabled wearable device provides a smart and cost-effective solution to improving the existing wound care through continuous, real-time, and in-situ monitoring of multiple wound biomarkers.
Collapse
|
5
|
Behi S, Casanova-Chafer J, González E, Bohli N, Llobet E, Abdelghani A. Metal loaded nano-carbon gas sensor array for pollutant detection . NANOTECHNOLOGY 2022; 33:195501. [PMID: 35073524 DOI: 10.1088/1361-6528/ac4e43] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 01/23/2022] [Indexed: 06/14/2023]
Abstract
Many research works report a sensitive detection of a wide variety of gas species. However, their in-lab detection is usually performed by using single gases and, therefore, selectivity often remains an unsolved issue. This paper reports a four-sensor array employing different nano-carbon sensitive layers (bare graphene, SnO2@Graphene, WO3@Graphene, and Au@CNTs). The different gas-sensitive films were characterised via several techniques such as FESEM, TEM, and Raman. First, an extensive study was performed to detect isolated NO2, CO2, and NH3molecules, unravelling the sensing mechanism at the operating temperatures applied. Besides, the effect of the ambient moisture was also evaluated. Afterwards, a model for target gas identification and concentration prediction was developed. Indeed, the sensor array was used in mixtures of NO2and CO2for studying the cross-sensitivity and developing a calibration model. As a result, the NO2detection with different background levels of CO2was achieved with anR2of 0.987 and an RMSE of about 22 ppb.
Collapse
Affiliation(s)
- Syrine Behi
- Carthage University, National Institute of Applied Science and Technology, Research Unit of Nanobiotechnology and Valorisation of Medicinal Phytoressources UR17ES22, Bp 676, 1080 Charguia CEDEX, Tunisia
| | - Juan Casanova-Chafer
- Department of Electronics Engineering, Universitat Rovira i Virgili, MINOS, E-43007 Tarragona, Spain
| | - Ernesto González
- Department of Electronics Engineering, Universitat Rovira i Virgili, MINOS, E-43007 Tarragona, Spain
| | - Nadra Bohli
- Carthage University, National Institute of Applied Science and Technology, Research Unit of Nanobiotechnology and Valorisation of Medicinal Phytoressources UR17ES22, Bp 676, 1080 Charguia CEDEX, Tunisia
| | - Eduard Llobet
- Department of Electronics Engineering, Universitat Rovira i Virgili, MINOS, E-43007 Tarragona, Spain
| | - Adnane Abdelghani
- Carthage University, National Institute of Applied Science and Technology, Research Unit of Nanobiotechnology and Valorisation of Medicinal Phytoressources UR17ES22, Bp 676, 1080 Charguia CEDEX, Tunisia
| |
Collapse
|
6
|
Lim HJ, Jin H, Chua B, Son A. Clustered Detection of Eleven Phthalic Acid Esters by Fluorescence of Graphene Quantum Dots Displaced from Gold Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2022; 14:4186-4196. [PMID: 35029109 DOI: 10.1021/acsami.1c21756] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A gold nanoparticle-quenched graphene quantum dot-based aptasensor was developed to perform clustered detection of 11 phthalic acid esters (PAEs). The binding of the target PAEs to the aptasensor frees the graphene quantum dots that are otherwise quenched by the carrier gold nanoparticle. The resultant fluorescence upon excitation is proportional to the number of freed graphene quantum dots and hence the target PAE concentration. The synthesis of the proposed aptasensor was first verified step-by-step via FT-IR measurement, scanning electron microscopy, and fluorescence measurement. Selectivity was evaluated for individual and combined target PAEs and compared against seven non-PAE endocrine disrupting compounds. The proposed aptasensor successfully quantified 11 PAEs in test samples with varying concentrations of 0.001-50 ng PAEs/mL and demonstrated a limit of detection of ∼4 pg./mL. Finally, the AuNP-gQD aptasensor was employed to detect multiple combinations of commonly regulated PAEs (DBP, DIBP, DEHP, and BBP). The recovery (%) for all four PAEs combination in environmentally relevant concentrations of 0.5, 1, 5, and 10 ng/mL were ∼100%.
Collapse
Affiliation(s)
- Hyun Jeong Lim
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
- Department of Environmental Science and Engineering, Ewha Womans Universty, Seoul 03760, Republic of Korea
| | - Hyowon Jin
- Department of Environmental Science and Engineering, Ewha Womans Universty, Seoul 03760, Republic of Korea
| | - Beelee Chua
- School of Electrical Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Ahjeong Son
- Department of Environmental Science and Engineering, Ewha Womans Universty, Seoul 03760, Republic of Korea
| |
Collapse
|
7
|
Influencing Multi-Walled Carbon Nanotubes for the Removal of Ismate Violet 2R Dye from Wastewater: Isotherm, Kinetics, and Thermodynamic Studies. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11114786] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this study, a multi-walled carbon nanotube (MWCNT) was synthesized and used as an adsorbent for the removal of Ismate violet 2R dye from contaminated water. The morphology and structure of the synthesized adsorbent were examined via the Brunauer–Emmett–Teller (BET) surface area, X-ray powder diffraction (XRD) analysis, infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and Raman spectroscopy. The effects of an MWCNT on the removal of IV2R were examined via a batch method using different factors such as pH, agitation time, adsorbent dosage, temperature, and initial dye concentration. The results showed that, at the acidic pH 4, 0.08 g of an MWCNT with 10 mg L−1 at 120 min realized the favorable removal of IV2R dye using an MWCNT. Under these operation conditions, the maximum elimination efficiency for real wastewater reached 88.2%. This process benefits from the ability to remove a large amount of dye (approximately 85.9%) in as short as 10 min using 0.005 g of MWCNTs. Moreover, the investigational isotherm data were examined by different models. The equations of error functions were used in the isotherm model to show the most appropriate isotherm model. The highest adsorption capacity for the removal of the dye was 76.92 mg g−1 for the MWCNT. Moreover, the regression data indicated that the adsorption kinetics were appropriate with a pseudo-second order and an R2 of 0.999. The thermodynamic study showed that the removal of IV2R is an endothermic, spontaneous, and chemisorption process. The MWCNT compound appears to be a new, promising adsorbent in water treatment, with 91.71% regeneration after three cycles.
Collapse
|
8
|
Thiol-Amine Functionalized Decorated Carbon Nanotubes for Biomarker Gases Detection. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9050087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Thousands of gas molecules are expelled in exhaled breath, and some of them can reveal diseases and metabolomic disorders. For that reason, the development of fast, inexpensive, and reliable sensing devices has been attracting growing interest. Here, we present the development of different chemoresistors based on multi-walled carbon nanotubes (MWCNTs) decorated with platinum (MWCNT/Pt) and palladium (MWCNT/Pt) nanoparticles and also functionalized with a self-assembled monolayer (SAM) of 11-amino-1-undecanethiol (Thiol-amine). The nanocomposites developed are a proof-of-concept to detect some biomarker molecules. Specifically, the capability to identify and measure different concentrations of volatile organic compounds (VOCs), either aromatic (toluene and benzene) and non-aromatic (ethanol and methanol) was assessed. As a result, this paper reports the significant differences in sensing performance achieved according to the metal nanoparticle used, and the high sensitivity obtained when SAMs are grown on the sensitive film, acting as a receptor for biomarker vapours.
Collapse
|
9
|
Deiminiat B, Rounaghi GH. A novel visible light photoelectrochemical aptasensor for determination of bisphenol A based on surface plasmon resonance of gold nanoparticles activated g-C3N4 nanosheets. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115122] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
10
|
Tomić M, Šetka M, Vojkůvka L, Vallejos S. VOCs Sensing by Metal Oxides, Conductive Polymers, and Carbon-Based Materials. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:552. [PMID: 33671783 PMCID: PMC7926866 DOI: 10.3390/nano11020552] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/31/2021] [Accepted: 02/07/2021] [Indexed: 12/24/2022]
Abstract
This review summarizes the recent research efforts and developments in nanomaterials for sensing volatile organic compounds (VOCs). The discussion focuses on key materials such as metal oxides (e.g., ZnO, SnO2, TiO2 WO3), conductive polymers (e.g., polypyrrole, polythiophene, poly(3,4-ethylenedioxythiophene)), and carbon-based materials (e.g., graphene, graphene oxide, carbon nanotubes), and their mutual combination due to their representativeness in VOCs sensing. Moreover, it delves into the main characteristics and tuning of these materials to achieve enhanced functionality (sensitivity, selectivity, speed of response, and stability). The usual synthesis methods and their advantages towards their integration with microsystems for practical applications are also remarked on. The literature survey shows the most successful systems include structured morphologies, particularly hierarchical structures at the nanometric scale, with intentionally introduced tunable "decorative impurities" or well-defined interfaces forming bilayer structures. These groups of modified or functionalized structures, in which metal oxides are still the main protagonists either as host or guest elements, have proved improvements in VOCs sensing. The work also identifies the need to explore new hybrid material combinations, as well as the convenience of incorporating other transducing principles further than resistive that allow the exploitation of mixed output concepts (e.g., electric, optic, mechanic).
Collapse
Affiliation(s)
- Milena Tomić
- Institute of Microelectronics of Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain;
- Department of Electronic Engineering, Autonomous University of Barcelona (UAB), Campus UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Milena Šetka
- CEITEC—Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech Republic;
| | - Lukaš Vojkůvka
- Silicon Austria Labs, Microsystem Technologies, High Tech Campus Villach, Europastraβe 12, A-9524 Villach, Austria;
| | - Stella Vallejos
- Institute of Microelectronics of Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain;
- CEITEC—Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech Republic;
| |
Collapse
|
11
|
Kumar S, Kumar S, Sengar M, Kumari P. Gold-carbonaceous materials based heterostructures for gas sensing applications. RSC Adv 2021. [DOI: 10.1039/d1ra00361e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The carbon nanostructures such as carbon nanotubes and graphene decorated with gold nanoparticles exhibit promising gas sensing applications with enhanced sensitivity.
Collapse
Affiliation(s)
- Sanjay Kumar
- Department of Chemistry
- Deshbandhu College
- University of Delhi
- New Delhi-110019
- India
| | - Suneel Kumar
- Department of Chemistry
- Government Degree College Chamba
- India
| | - Manisha Sengar
- Department of Zoology
- Deshbandhu College
- University of Delhi
- New Delhi
- India
| | - Pratibha Kumari
- Department of Chemistry
- Deshbandhu College
- University of Delhi
- New Delhi-110019
- India
| |
Collapse
|
12
|
Behi S, Bohli N, Casanova-Cháfer J, Llobet E, Abdelghani A. Metal Oxide Nanoparticle-Decorated Few Layer Graphene Nanoflake Chemoresistors for the Detection of Aromatic Volatile Organic Compounds. SENSORS 2020; 20:s20123413. [PMID: 32560414 PMCID: PMC7349069 DOI: 10.3390/s20123413] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/09/2020] [Accepted: 06/15/2020] [Indexed: 12/18/2022]
Abstract
Benzene, toluene, and xylene, commonly known as BTX, are hazardous aromatic organic vapors with high toxicity towards living organisms. Many techniques are being developed to provide the community with portable, cost effective, and high performance BTX sensing devices in order to effectively monitor the quality of air. In this paper, we study the effect of decorating graphene with tin oxide (SnO2) or tungsten oxide (WO3) nanoparticles on its performance as a chemoresistive material for detecting BTX vapors. Transmission electron microscopy and environmental scanning electron microscopy are used as morphological characterization techniques. SnO2-decorated graphene displayed high sensitivity towards benzene, toluene, and xylene with the lowest tested concentrations of 2 ppm, 1.5 ppm, and 0.2 ppm, respectively. In addition, we found that, by employing these nanomaterials, the observed response could provide a unique double signal confirmation to identify the presence of benzene vapors for monitoring occupational exposure in the textiles, painting, and adhesives industries or in fuel stations.
Collapse
Affiliation(s)
- Syrine Behi
- Research Unit of Nanobiotechnology and Valorisation of Medicinal Phytoressources UR17ES22, National Institute of Applied Science and Technology, Carthage University, Centre Urbain Nord, 1080 Charguia CEDEX Bp 676, Tunisia; (S.B.); (N.B.); (A.A.)
| | - Nadra Bohli
- Research Unit of Nanobiotechnology and Valorisation of Medicinal Phytoressources UR17ES22, National Institute of Applied Science and Technology, Carthage University, Centre Urbain Nord, 1080 Charguia CEDEX Bp 676, Tunisia; (S.B.); (N.B.); (A.A.)
| | - Juan Casanova-Cháfer
- Department of Electronics Engineering, Universitat Rovira i Virgili, MINOS-EMaS, 43007 Tarragona, Spain;
| | - Eduard Llobet
- Department of Electronics Engineering, Universitat Rovira i Virgili, MINOS-EMaS, 43007 Tarragona, Spain;
- Correspondence:
| | - Adnane Abdelghani
- Research Unit of Nanobiotechnology and Valorisation of Medicinal Phytoressources UR17ES22, National Institute of Applied Science and Technology, Carthage University, Centre Urbain Nord, 1080 Charguia CEDEX Bp 676, Tunisia; (S.B.); (N.B.); (A.A.)
| |
Collapse
|
13
|
Bohli N, Belkilani M, Casanova-Chafer J, Llobet E, Abdelghani A. Multiwalled carbon nanotube based aromatic volatile organic compound sensor: sensitivity enhancement through 1-hexadecanethiol functionalisation. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:2364-2373. [PMID: 31886113 PMCID: PMC6902881 DOI: 10.3762/bjnano.10.227] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 11/08/2019] [Indexed: 05/25/2023]
Abstract
Aromatic volatile organic compound (VOC) sensors are attracting growing interest as a response to the pressing market need for sensitive, fast response, low power consumption and stable sensors. Benzene and toluene detection is subject to several potential applications such as air monitoring in chemical industries or even biosensing of human breath. In this work, we report the fabrication of a room temperature toluene and benzene sensor based on multiwall carbon nanotubes (MWCNTs) decorated with gold nanoparticles and functionalised with a long-chain thiol self-assembled monolayer, 1-hexadecanethiol (HDT). High-resolution transmission electron microscopy (HRTEM) and Fourier transform infrared spectroscopy (FTIR) were performed to characterize the gold nanoparticle decoration and to examine the thiol monolayer bonding to the MWCNTs. The detection of aromatic vapours using Au-MWCNT and HDT/Au-MWCNT sensors down to the ppm range shows that the presence of the self-assembled layer increases the sensitivity (up to 17 times), selectivity and improves the response dynamics of the sensors.
Collapse
Affiliation(s)
- Nadra Bohli
- Carthage University, National Institute of Applied Science and Technology, Research Unit of Nanobiotechnology and Valorisation of Medicinal Plants UR17ES22, Bp 676, Centre Urbain Nord, 1080 Charguia Cedex, Tunisia
| | - Meryem Belkilani
- Carthage University, National Institute of Applied Science and Technology, Research Unit of Nanobiotechnology and Valorisation of Medicinal Plants UR17ES22, Bp 676, Centre Urbain Nord, 1080 Charguia Cedex, Tunisia
- Tunis University, ENSIT, Avenue Taha Hussein, Montfleury, 1008 Tunis, Tunisia
| | - Juan Casanova-Chafer
- MINOS-EMaS, Universitat Rovira i Virgili, Avda. Països Catalans, 26, 43007 Tarragona, Spain
| | - Eduard Llobet
- MINOS-EMaS, Universitat Rovira i Virgili, Avda. Països Catalans, 26, 43007 Tarragona, Spain
| | - Adnane Abdelghani
- Carthage University, National Institute of Applied Science and Technology, Research Unit of Nanobiotechnology and Valorisation of Medicinal Plants UR17ES22, Bp 676, Centre Urbain Nord, 1080 Charguia Cedex, Tunisia
| |
Collapse
|
14
|
Source Separation Using Sensor's Frequency Response: Theory and Practice on Carbon Nanotubes Sensors. SENSORS 2019; 19:s19153389. [PMID: 31382380 PMCID: PMC6696222 DOI: 10.3390/s19153389] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 07/24/2019] [Accepted: 07/25/2019] [Indexed: 12/11/2022]
Abstract
Nowadays, there is an increased demand in integrated sensors for electronic devices. Multi-functional sensors provide the same amount of data using fewer sensors. Carbon nanotubes are non-selectively sensitive to temperature, gas and strain. Thus, carbon nanotubes are perfect candidates to design multi-functional sensors. In our study, we are interested in a dual humidity-temperature sensor. Here, we present a novel method to differentiate at least two sources using the sensor's frequency responses based on multiwall carbon nanotubes sensors. The experimental results demonstrate that there are temperature- or moisture-invariant frequencies of the impedance magnitude, and their values depend on the sensor's geometry. The proposed measurement model shows that source-invariant frequencies of the phase can be also determined. In addition, the source separation method is generalized to other materials or sources enabling multi-functional sensors for environment monitoring.
Collapse
|
15
|
Casanova-Cháfer J, Bittencourt C, Llobet E. Hydrophilicity and carbon chain length effects on the gas sensing properties of chemoresistive, self-assembled monolayer carbon nanotube sensors. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:565-577. [PMID: 30873329 PMCID: PMC6404396 DOI: 10.3762/bjnano.10.58] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 02/07/2019] [Indexed: 05/16/2023]
Abstract
Here we describe the development of chemoresistive sensors employing oxygen-plasma-treated, Au-decorated multiwall carbon nanotubes (MWCNTs) functionalized with self-assembled monolayers (SAMs) of thiols. For the first time, the effects of the length of the carbon chain and its hydrophilicity on the gas sensing properties of SAMs formed on carbon nanotubes are studied, and additionally, the gas sensing mechanisms are discussed. Four thiols differing in the length of the carbon chain and in the hydrophobic or hydrophilic nature of the head functional group are studied. Transmission electron microscopy, Raman spectroscopy and X-ray photoelectron spectroscopy are used to analyze the resulting gas-sensitive hybrid films. Among the different nanomaterials tested, short-chain thiols having a hydrophilic head group, self-assembled onto Au-decorated carbon nanotubes were most responsive to nitrogen dioxide and ethanol vapors, even in the presence of ambient humidity. In particular, this nanomaterial was about eight times more sensitive to nitrogen dioxide than bare Au-decorated carbon nanotubes when operated at room temperature. This response enhancement is attributed to the interaction, via strong hydrogen bonding, of the polar molecules tested to the polar surface of hydrophilic thiols. The approach discussed here could be extended further by combining hydrophilic and hydrophobic thiol SAMs in Au-MWCNT sensor arrays as a helpful strategy for tuning sensor response and selectivity. This would make the detection of polar and nonpolar gas species employing low-power gas sensors easier, even under fluctuating ambient moisture conditions.
Collapse
Affiliation(s)
- Juan Casanova-Cháfer
- MINOS-EMaS, University Rovira i Virgili, Avda. Països Catalans, 26, 43007 Tarragona, Spain
| | - Carla Bittencourt
- Chimie des Interactions Plasma-Surface (ChIPS), Research Institute for Materials Science and Engineering, Université de Mons, Avenue Copernic 1, Mons, Belgium
| | - Eduard Llobet
- MINOS-EMaS, University Rovira i Virgili, Avda. Països Catalans, 26, 43007 Tarragona, Spain
| |
Collapse
|
16
|
Mutuma BK, Garcia-Martinez CI, Dias RC, Matsoso BJ, Coville NJ, Hümmelgen IA. Nitrogen-doped hollow carbon spheres as chemical vapour sensors. NEW J CHEM 2019. [DOI: 10.1039/c9nj00628a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The sensitivities of N-HCSs and annealed HCSs towards various analytes revealing a decrease in water sensitivity of the N-HCSs.
Collapse
Affiliation(s)
- Bridget K. Mutuma
- DST-NRF Centre of Excellence in Strong Materials and the Molecular Sciences Institute
- School of Chemistry
- University of the Witwatersrand
- Johannesburg
- South Africa
| | | | - Rodrigo C. Dias
- Departamento de Física
- Universidade Federal do Parana
- 8153-980 Curitiba
- Brazil
| | - Boitumelo J. Matsoso
- DST-NRF Centre of Excellence in Strong Materials and the Molecular Sciences Institute
- School of Chemistry
- University of the Witwatersrand
- Johannesburg
- South Africa
| | - Neil J. Coville
- DST-NRF Centre of Excellence in Strong Materials and the Molecular Sciences Institute
- School of Chemistry
- University of the Witwatersrand
- Johannesburg
- South Africa
| | - Ivo A. Hümmelgen
- Departamento de Física
- Universidade Federal do Parana
- 8153-980 Curitiba
- Brazil
| |
Collapse
|
17
|
Fedorov F, Vasilkov M, Lashkov A, Varezhnikov A, Fuchs D, Kübel C, Bruns M, Sommer M, Sysoev V. Toward new gas-analytical multisensor chips based on titanium oxide nanotube array. Sci Rep 2017; 7:9732. [PMID: 28852172 PMCID: PMC5575241 DOI: 10.1038/s41598-017-10495-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 08/10/2017] [Indexed: 11/09/2022] Open
Abstract
Reliable environmental monitoring requires cost effective but highly sensitive and selective gas sensors. While the sensitivity of the sensors is improved by reducing the characteristic dimensions of the gas-sensing material, the selectivity is often approached by combining the sensors into multisensor arrays. The development of scalable methods to manufacture such arrays based on low-dimensional structures offers new perspectives for gas sensing applications. Here we examine an approach to produce multisensor array chips based on the TiOx nanotube layers segmented by multiple Pt strip electrodes. We study the sensitivity and selectivity of the developed chip at operating temperatures up to 400 °C towards organic vapors in the ppm range. The results indicate that the titania nanotubes are a promising material platform for novel cost-effective and powerful gas-analytical multisensor units.
Collapse
Affiliation(s)
- Fedor Fedorov
- Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, 3 Nobel str., Moscow, Russian Federation.
| | - Michail Vasilkov
- V. A. Kotel'nikov Institute of RadioEngineering and Electronics of Russian Academy of Science, Saratov Branch, 38 Zelenaya str., Saratov, Russian Federation
- Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., Saratov, Russian Federation
| | - Andrey Lashkov
- Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., Saratov, Russian Federation
| | - Alexey Varezhnikov
- Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., Saratov, Russian Federation
| | - Dirk Fuchs
- Institute for Solid-State Physics, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, Germany
| | - Christian Kübel
- Institute of Nanotechnology and Karlsruhe Nano Micro Facility, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, Germany
| | - Michael Bruns
- Institute for Applied Materials and Karlsruhe Nano Micro Facility, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, Germany
| | - Martin Sommer
- Institute for Microstructure Technology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, Germany
| | - Victor Sysoev
- Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., Saratov, Russian Federation.
- Department of Functional Nanosystems and High-Temperature Materials, National University of Science and Technology "MISIS", Leninskiy pr. 4, Moscow, Russia.
| |
Collapse
|
18
|
Dutta DP, Venugopalan R, Chopade S. Manipulating Carbon Nanotubes for Efficient Removal of Both Cationic and Anionic Dyes from Wastewater. ChemistrySelect 2017. [DOI: 10.1002/slct.201700135] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dimple P. Dutta
- Chemistry Division; Bhabha Atomic Research Centre; Mumbai 400 085 India
| | - Ramani Venugopalan
- Mechanical Metallurgy Division; Bhabha Atomic Research Centre; Mumbai 400 085 India
| | - Suresh Chopade
- Chemistry Division; Bhabha Atomic Research Centre; Mumbai 400 085 India
| |
Collapse
|
19
|
Köhler MH, Bordin JR, da Silva LB, Barbosa MC. Breakdown of the Stokes–Einstein water transport through narrow hydrophobic nanotubes. Phys Chem Chem Phys 2017; 19:12921-12927. [DOI: 10.1039/c7cp02058a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As water density is increased inside narrow hydrophobic nanotubes, the viscosity shows a huge increase associated with a small increase in the diffusion, which violates the Stokes–Einstein relation.
Collapse
Affiliation(s)
- Mateus Henrique Köhler
- Instituto de Física
- Universidade Federal do Rio Grande do Sul
- Caixa Postal 15051
- Porto Alegre
- Brazil
| | - José Rafael Bordin
- Campus Caapava do Sul
- Universidade Federal do Pampa
- v. Pedro Anunciacao 111
- CEP 96570-000
- Ca apava do Sul
| | | | - Marcia C. Barbosa
- Instituto de Física
- Universidade Federal do Rio Grande do Sul
- Caixa Postal 15051
- Porto Alegre
- Brazil
| |
Collapse
|