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D'Andria M, Elias Abi-Ramia Silva T, Consogno E, Krumeich F, Güntner AT. Metastable CoCu 2O 3 Nanocrystals from Combustion-Aerosols for Molecular Sensing and Catalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2408888. [PMID: 39252677 DOI: 10.1002/adma.202408888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 08/21/2024] [Indexed: 09/11/2024]
Abstract
Metastable nanostructures are kinetically trapped in local energy minima featuring intriguing surface and material properties. To unleash their potential, there is a need for non-equilibrium processes capable of stabilizing a large range of crystal phases outside thermodynamic equilibrium conditions by closely and flexibly controlling atomic reactant composition, spatial temperature distribution and residence time. Here, the capture of metastable pseudo-binary metal oxides at room temperature is demonstrated with scalable combustion-aerosol processes. By a combination of X-ray diffraction, electron microscopy and on-line flame characterization, the occurrence of metastable CoCu2O3 is investigated with controlled crystal size (4-16 nm) over thermodynamically stable CuO and Co3O4. Immediate practical impact is demonstrated by exceptional sensing and stable catalytic performance for air pollutant detection (e.g., 15 parts-per-billion benzene) shown for, at least, 21 days. This approach can be extended to various binary, ternary and high entropy oxides with even more components. Also, secondary phases can be loaded on such metastable nanocrystals to access novel materials promising for actuators, energy storage or solar cells.
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Affiliation(s)
- Matteo D'Andria
- Human-Centered Sensing Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, CH-8092, Switzerland
| | - Tiago Elias Abi-Ramia Silva
- Human-Centered Sensing Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, CH-8092, Switzerland
| | - Edoardo Consogno
- Human-Centered Sensing Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, CH-8092, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, CH-8093, Switzerland
| | - Andreas T Güntner
- Human-Centered Sensing Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, CH-8092, Switzerland
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2
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Jabłczyńska K, Gogos A, Kubsch CMP, Pratsinis SE. Embedding Pd into SnO 2 drastically enhances gas sensing. NANOSCALE ADVANCES 2024; 6:1259-1268. [PMID: 38356635 PMCID: PMC10863718 DOI: 10.1039/d3na00558e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 01/28/2024] [Indexed: 02/16/2024]
Abstract
Combustion aerosol processes can uniquely embed noble metals into semiconducting particles. Here, monocrystalline SnO2 particles embedded with Pd and/or PdOx were made by flame spray pyrolysis (FSP) of appropriate precursors through microexplosions by droplet-to-particle conversion as the crystal size was proportional to the cube root of precursor solution concentration, C. These particles were air-annealed and leached with nitric acid for removal of metallic Pd from their surface. The SnO2 crystal size varied from 11 to 24 nm and was in close agreement with the primary particle size determined by nitrogen adsorption. The embedded fraction of Pd ranged from about 30 to 80% of the nominal Pd-content. This was achieved by judiciously varying the C, Pd content and the ratio of precursor solution to dispersion oxygen flowrates during FSP. The response of sensors made by doctor blading films of such particles to 1 ppm of acetone and CO was evaluated at 350 °C and 50% relative humidity. Embedding Pd/PdOx into SnO2 significantly increased the sensor response: 2-6 times over that of pure or conventionally-made Pd-containing SnO2 sensors at low nominal Pd-contents (0.2 mol%). For higher ones (i.e. 1 mol% Pd), the sensor response was enhanced by up to two orders of magnitude. This is attributed to Pd atoms in the SnO2 lattice near the particle surface and/or Pd/PdOx clusters acting as nanoelectrodes into SnO2 films and altering their transducing properties as shown by high resolution electron microscopy, XPS and baseline resistance measurements of pure and Pd-embedded SnO2 sensing films.
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Affiliation(s)
- Katarzyna Jabłczyńska
- Particle Technology Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich CH-8092 Zurich Switzerland
- Faculty of Chemical and Process Engineering, Warsaw University of Technology 00-645 Warsaw Poland
| | - Alexander Gogos
- Particles-Biology Interactions, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa) CH-9014 St. Gallen Switzerland
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich CH-8092 Zurich Switzerland
| | - Christian M P Kubsch
- Particle Technology Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich CH-8092 Zurich Switzerland
| | - Sotiris E Pratsinis
- Particle Technology Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich CH-8092 Zurich Switzerland
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3
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Zheng Z, Jiang N, Liang R, Chi H, Wu J, Jiang J, Ye Z, Zhu L. Enhanced Acetone-Sensing Properties of Pt-Decorated In 2O 3 Hollow Microspheres Derived from Pt-Embedded Template. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:10178-10188. [PMID: 37439034 DOI: 10.1021/acs.langmuir.3c01096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Pt-decorated In2O3 hollow microspheres were prepared using a template and reflux method. The size of the prepared carbon templates was adjusted from 200 nm to 1.3 μm by introducing chloroplatinic acid during the hydrothermal process. At the same time, Pt nanoparticles inside the carbon layer were protected from oxidation and agglomeration. Also, the folds created on the surface of the hollow sphere during shrinkage led to a substantial increase in specific surface area. The response of the In2O3-based sensor toward acetone was significantly enhanced by the addition of Pt decoration. This improvement can be attributed to the increased availability of active sites for the target gas and the consequential alteration of the energy band structure. In addition, high response sensitivity, rapid dynamic processes, long-term reliability, and selectivity have all been achieved. The detectable limit is less than 1 ppm, which might satisfy the 1.8 ppm threshold value in the exhaled breath of patients with diabetes. Consequently, the proposed sensor has great sensitivity and can detect low-concentration of acetone, making it an ideal choice for applications such as monitoring daily dietary intake, managing diabetes, and inspecting industrial production processes.
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Affiliation(s)
- Zicheng Zheng
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, PR China
| | - Nan Jiang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, PR China
| | - Rong Liang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, PR China
| | - Hanwen Chi
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, PR China
| | - Jingmin Wu
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, PR China
| | - Jie Jiang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, PR China
| | - Zhizhen Ye
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, PR China
| | - Liping Zhu
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, PR China
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4
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Weber IC, Oosthuizen DN, Mohammad RW, Mayhew CA, Pratsinis SE, Güntner AT. Dynamic Breath Limonene Sensing at High Selectivity. ACS Sens 2023. [PMID: 37377394 DOI: 10.1021/acssensors.3c00439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Liver diseases (e.g., cirrhosis, cancer) cause more than two million deaths per year worldwide. This is partly attributed to late diagnosis and insufficient screening techniques. A promising biomarker for noninvasive and inexpensive liver disease screening is breath limonene that can indicate a deficiency of the cytochrome P450 liver enzymes. Here, we introduce a compact and low-cost detector for dynamic and selective breath limonene sensing. It comprises a chemoresistive sensor based on Si/WO3 nanoparticles pre-screened by a packed bed Tenax separation column at room temperature. We demonstrate selective limonene detection down to 20 parts per billion over up to three orders of magnitude higher concentrated acetone, ethanol, hydrogen, methanol, and 2-propanol in gas mixtures, as well as robustness to 10-90% relative humidity. Most importantly, this detector recognizes the individual breath limonene dynamics of four healthy volunteers following the ingestion (swallowing or chewing) of a limonene capsule. Limonene release and subsequent metabolization are monitored from breath measurements in real time and in excellent agreement (R2 = 0.98) with high-resolution proton transfer reaction mass spectrometry. This study demonstrates the potential of the detector as a simple-to-use and noninvasive device for the routine monitoring of limonene levels in exhaled breath to facilitate early diagnosis of liver dysfunction.
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Affiliation(s)
- Ines C Weber
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zürich (USZ) and University of Zürich (UZH), CH-8091 Zürich, Switzerland
| | - Dina N Oosthuizen
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Rawan W Mohammad
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Chris A Mayhew
- Institute for Breath Research, Universität Innsbruck, Innsbruck A-6020, Austria
| | - Sotiris E Pratsinis
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Andreas T Güntner
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zürich (USZ) and University of Zürich (UZH), CH-8091 Zürich, Switzerland
- Human-centered Sensor Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
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5
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Zhu LY, Ou LX, Mao LW, Wu XY, Liu YP, Lu HL. Advances in Noble Metal-Decorated Metal Oxide Nanomaterials for Chemiresistive Gas Sensors: Overview. NANO-MICRO LETTERS 2023; 15:89. [PMID: 37029296 PMCID: PMC10082150 DOI: 10.1007/s40820-023-01047-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 02/25/2023] [Indexed: 06/19/2023]
Abstract
Highly sensitive gas sensors with remarkably low detection limits are attractive for diverse practical application fields including real-time environmental monitoring, exhaled breath diagnosis, and food freshness analysis. Among various chemiresistive sensing materials, noble metal-decorated semiconducting metal oxides (SMOs) have currently aroused extensive attention by virtue of the unique electronic and catalytic properties of noble metals. This review highlights the research progress on the designs and applications of different noble metal-decorated SMOs with diverse nanostructures (e.g., nanoparticles, nanowires, nanorods, nanosheets, nanoflowers, and microspheres) for high-performance gas sensors with higher response, faster response/recovery speed, lower operating temperature, and ultra-low detection limits. The key topics include Pt, Pd, Au, other noble metals (e.g., Ag, Ru, and Rh.), and bimetals-decorated SMOs containing ZnO, SnO2, WO3, other SMOs (e.g., In2O3, Fe2O3, and CuO), and heterostructured SMOs. In addition to conventional devices, the innovative applications like photo-assisted room temperature gas sensors and mechanically flexible smart wearable devices are also discussed. Moreover, the relevant mechanisms for the sensing performance improvement caused by noble metal decoration, including the electronic sensitization effect and the chemical sensitization effect, have also been summarized in detail. Finally, major challenges and future perspectives towards noble metal-decorated SMOs-based chemiresistive gas sensors are proposed.
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Affiliation(s)
- Li-Yuan Zhu
- State Key Laboratory of ASIC and System, Shanghai Institute of Intelligent Electronics and Systems, School of Microelectronics, Fudan University, Shanghai, 200433, People's Republic of China
| | - Lang-Xi Ou
- State Key Laboratory of ASIC and System, Shanghai Institute of Intelligent Electronics and Systems, School of Microelectronics, Fudan University, Shanghai, 200433, People's Republic of China
| | - Li-Wen Mao
- School of Opto-Electronic Information and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, People's Republic of China
| | - Xue-Yan Wu
- State Key Laboratory of ASIC and System, Shanghai Institute of Intelligent Electronics and Systems, School of Microelectronics, Fudan University, Shanghai, 200433, People's Republic of China
| | - Yi-Ping Liu
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Hong-Liang Lu
- State Key Laboratory of ASIC and System, Shanghai Institute of Intelligent Electronics and Systems, School of Microelectronics, Fudan University, Shanghai, 200433, People's Republic of China.
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6
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Imamura G, Minami K, Yoshikawa G. Repetitive Direct Comparison Method for Odor Sensing. BIOSENSORS 2023; 13:368. [PMID: 36979580 PMCID: PMC10046632 DOI: 10.3390/bios13030368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/02/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Olfactory sensors are one of the most anticipated applications of gas sensors. To distinguish odors-complex mixtures of gas species, it is necessary to extract sensor responses originating from the target odors. However, the responses of gas sensors tend to be affected by interfering gases with much higher concentrations than target odor molecules. To realize practical applications of olfactory sensors, extracting minute sensor responses of odors from major interfering gases is required. In this study, we propose a repetitive direct comparison (rDC) method, which can highlight the difference in odors by alternately injecting the two target odors into a gas sensor. We verified the feasibility of the rDC method on chocolates with two different flavors by using a sensor system based on membrane-type surface stress sensors (MSS). The odors of the chocolates were measured by the rDC method, and the signal-to-noise ratios (S/N) of the measurements were evaluated. The results showed that the rDC method achieved improved S/N compared to a typical measurement. The result also indicates that sensing signals could be enhanced for a specific combination of receptor materials of MSS and target odors.
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Affiliation(s)
- Gaku Imamura
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
- Graduate School of Information Science and Technology, Osaka University, 1-2 Yamadaoka, Suita 565-0871, Japan
| | - Kosuke Minami
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Genki Yoshikawa
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
- Materials Science and Engineering, Graduate School of Pure and Applied Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8571, Japan
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7
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Wu Q, Feng Z, Wang Z, Peng Z, Zhang L, Li Y. Visual chemiresistive dual-mode sensing platform based on SnS2/Ti3C2 MXene Schottky junction for acetone detection at room temperature. Talanta 2023. [DOI: 10.1016/j.talanta.2022.124063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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8
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Nasriddinov A, Shatalova T, Maksimov S, Li X, Rumyantseva M. Humidity Effect on Low-Temperature NH 3 Sensing Behavior of In 2O 3/rGO Composites under UV Activation. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23031517. [PMID: 36772557 PMCID: PMC9920166 DOI: 10.3390/s23031517] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/25/2023] [Accepted: 01/25/2023] [Indexed: 05/27/2023]
Abstract
The nature of the constituent components of composite materials can significantly affect the character of their interaction with the gas phase. In this work, nanocrystalline In2O3 was synthesized by the chemical precipitation method and was modified using reduced graphene oxide (rGO). The obtained composites were characterized by several analysis techniques-XRD, TEM, SEM, FTIR and Raman spectroscopy, XPS, TGA, and DRIFTS. The XPS and FTIR and Raman spectroscopy results suggested the formation of interfacial contact between In2O3 and rGO. The results of the gas sensor's properties showed that additional UV illumination led to a decrease in resistance and an increase in sensor response at room temperature. However, the presence of humidity at room temperature led to the disappearance of the response for pure In2O3, while for the composites, an inversion of the sensor response toward ammonia was observed. The main reason may have been the formation of NH4NO3 intermediates with further hydrolysis and decomposition under light illumination with the formation of nitrite and nitrate species. The presence of these species was verified by in situ DRIFT spectroscopy. Their strong electron-accepting properties lead to an increase in resistance, which possibly affected the sensor signal's inversion.
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Affiliation(s)
| | - Tatiana Shatalova
- Chemistry Department, Moscow State University, Moscow 119991, Russia
| | - Sergey Maksimov
- Chemistry Department, Moscow State University, Moscow 119991, Russia
| | - Xiaogan Li
- Key Lab of Liaoning for Integrated Circuits Technology, School of Microelectronics, Dalian University of Technology, Dalian 116024, China
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9
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Weber IC, Rüedi P, Šot P, Güntner AT, Pratsinis SE. Handheld Device for Selective Benzene Sensing over Toluene and Xylene. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103853. [PMID: 34837486 PMCID: PMC8811843 DOI: 10.1002/advs.202103853] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/21/2021] [Indexed: 06/01/2023]
Abstract
More than 1 million workers are exposed routinely to carcinogenic benzene, contained in various consumer products (e.g., gasoline, rubbers, and dyes) and released from combustion of organics (e.g., tobacco). Despite strict limits (e.g., 50 parts per billion (ppb) in the European Union), routine monitoring of benzene is rarely done since low-cost sensors lack accuracy. This work presents a compact, battery-driven device that detects benzene in gas mixtures with unprecedented selectivity (>200) over inorganics, ketones, aldehydes, alcohols, and even challenging toluene and xylene. This can be attributed to strong Lewis acid sites on a packed bed of catalytic WO3 nanoparticles that prescreen a chemoresistive Pd/SnO2 sensor. That way, benzene is detected down to 13 ppb with superior robustness to relative humidity (RH, 10-80%), fulfilling the strictest legal limits. As proof of concept, benzene is quantified in indoor air in good agreement (R2 ≥ 0.94) with mass spectrometry. This device is readily applicable for personal exposure assessment and can assist the implementation of low-emission zones for sustainable environments.
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Affiliation(s)
- Ines C. Weber
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichZurichCH‐8092Switzerland
| | - Pascal Rüedi
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichZurichCH‐8092Switzerland
| | - Petr Šot
- Department of Chemistry and Applied BiosciencesETH ZurichZurichCH‐8049Switzerland
| | - Andreas T. Güntner
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichZurichCH‐8092Switzerland
- Department of EndocrinologyDiabetologyand Clinical NutritionUniversity Hospital Zurich (USZ) and University of Zurich (UZH)ZurichCH‐8091Switzerland
| | - Sotiris E. Pratsinis
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichZurichCH‐8092Switzerland
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10
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Majhi SM, Ali A, Rai P, Greish YE, Alzamly A, Surya SG, Qamhieh N, Mahmoud ST. Metal-organic frameworks for advanced transducer based gas sensors: review and perspectives. NANOSCALE ADVANCES 2022; 4:697-732. [PMID: 36131834 PMCID: PMC9417493 DOI: 10.1039/d1na00798j] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/11/2021] [Indexed: 05/13/2023]
Abstract
The development of gas sensing devices to detect environmentally toxic, hazardous, and volatile organic compounds (VOCs) has witnessed a surge of immense interest over the past few decades, motivated mainly by the significant progress in technological advancements in the gas sensing field. A great deal of research has been dedicated to developing robust, cost-effective, and miniaturized gas sensing platforms with high efficiency. Compared to conventional metal-oxide based gas sensing materials, metal-organic frameworks (MOFs) have garnered tremendous attention in a variety of fields, including the gas sensing field, due to their fascinating features such as high adsorption sites for gas molecules, high porosity, tunable morphologies, structural diversities, and ability of room temperature (RT) sensing. This review summarizes the current advancement in various pristine MOF materials and their composites for different electrical transducer-based gas sensing applications. The review begins with a discussion on the overview of gas sensors, the significance of MOFs, and their scope in the gas sensing field. Next, gas sensing applications are divided into four categories based on different advanced transducers: chemiresistive, capacitive, quartz crystal microbalance (QCM), and organic field-effect transistor (OFET) based gas sensors. Their fundamental concepts, gas sensing ability towards various gases, sensing mechanisms, and their advantages and disadvantages are discussed. Finally, this review is concluded with a summary, existing challenges, and future perspectives.
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Affiliation(s)
- Sanjit Manohar Majhi
- Department of Physics, College of Science, United Arab Emirates University Al-Ain 15551 United Arab Emirates
| | - Ashraf Ali
- Department of Physics, College of Science, United Arab Emirates University Al-Ain 15551 United Arab Emirates
| | | | - Yaser E Greish
- Department of Chemistry, College of Science, United Arab Emirates University Al-Ain 15551 United Arab Emirates
| | - Ahmed Alzamly
- Department of Chemistry, College of Science, United Arab Emirates University Al-Ain 15551 United Arab Emirates
| | - Sandeep G Surya
- Sensors Lab, Advanced Membranes & Porous Materials Center (AMPMC), CEMSE, King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
- Sensor Group, R&D Section, Dyson Tech. Limited Malmesbury UK
| | - Naser Qamhieh
- Department of Physics, College of Science, United Arab Emirates University Al-Ain 15551 United Arab Emirates
| | - Saleh T Mahmoud
- Department of Physics, College of Science, United Arab Emirates University Al-Ain 15551 United Arab Emirates
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11
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Naragund VS, Panda PK. Electrospun nanofiber-based respiratory face masks-a review. EMERGENT MATERIALS 2022; 5:261-278. [PMID: 35098033 PMCID: PMC8788396 DOI: 10.1007/s42247-022-00350-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 01/19/2022] [Indexed: 05/05/2023]
Abstract
The severe acute respiratory syndrome coronavirus (SARS-CoV-2) pandemic of 2019 forced widespread use of face coverings as a mandatory step towards reducing infection by the virus. The face mask acts as a barrier for transmission of infected aerosols among its user and surrounding people. This has propelled pace of research and development of face masks around the world. This short review is an effort to present advances in materials and designs used for face masks. Details available in scientific literature and company brochures have been accessed and the use of nanomaterials and designs for the new generation of face masks have been discussed. Special attention was given to the face masks based on electrospun nanofiber-based membrane materials due to their nano-sized pores, light weight, and high filtration efficiency; therefore, they are commercially viable and popular among various products available in the market. Incorporation of metal organic framework (MOFs) and graphene have opened avenues to more advanced/multi-functional, reusable, and high capacity adsorption filtration membranes. Rapid prototyping/3-dimensional (3-D) printing techniques have been applied to shorten the time of manufacture of face masks. This review is expected to be very helpful for engineers, scientists, and entrepreneurs working on development of novel face masks required in plenty during this pandemic period.
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Affiliation(s)
- Veereshgouda S. Naragund
- Materials Science Division, CSIR – National Aerospace Laboratories, HAL Old Airport Road, Kodihalli, Bengaluru, 560017 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - P. K. Panda
- Materials Science Division, CSIR – National Aerospace Laboratories, HAL Old Airport Road, Kodihalli, Bengaluru, 560017 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
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12
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Barik P, Pradhan M. Selectivity in trace gas sensing: recent developments, challenges, and future perspectives. Analyst 2022; 147:1024-1054. [DOI: 10.1039/d1an02070f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Selectivity is one of the most crucial figures of merit in trace gas sensing, and thus a comprehensive assessment is necessary to have a clear picture of sensitivity, selectivity, and their interrelations in terms of quantitative and qualitative views.
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Affiliation(s)
- Puspendu Barik
- Technical Research Centre, S. N. Bose National Centre for Basic Sciences, JD Block, Sector-III, Salt Lake City, Kolkata – 700106, India
| | - Manik Pradhan
- Technical Research Centre, S. N. Bose National Centre for Basic Sciences, JD Block, Sector-III, Salt Lake City, Kolkata – 700106, India
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, JD Block, Sector-III, Salt Lake City, Kolkata – 700106, India
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13
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Qu CC, Sun XY, Sun WX, Cao LX, Wang XQ, He ZZ. Flexible Wearables for Plants. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2104482. [PMID: 34796649 DOI: 10.1002/smll.202104482] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/18/2021] [Indexed: 05/27/2023]
Abstract
The excellent stretchability and biocompatibility of flexible sensors have inspired an emerging field of plant wearables, which enable intimate contact with the plants to continuously monitor the growth status and localized microclimate in real-time. Plant flexible wearables provide a promising platform for the development of plant phenotype and the construction of intelligent agriculture via monitoring and regulating the critical physiological parameters and microclimate of plants. Here, the emerging applications of plant flexible wearables together with their pros and cons from four aspects, including physiological indicators, surrounding environment, crop quality, and active control of growth, are highlighted. Self-powered energy supply systems and signal transmission mechanisms are also elucidated. Furthermore, the future opportunities and challenges of plant wearables are discussed in detail.
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Affiliation(s)
- Chun-Chun Qu
- College of Engineering, China Agricultural University, Beijing, 100083, China
- State Key Laboratory of Plant Physiology and Biochemistry, Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100083, China
- Sanya Institute of China Agricultural University, China Agricultural University, Hainan, 572000, China
| | - Xu-Yang Sun
- School of Medical Science and Engineering, Beihang University, Beijing, 100191, China
| | - Wen-Xiu Sun
- College of Engineering, China Agricultural University, Beijing, 100083, China
- State Key Laboratory of Plant Physiology and Biochemistry, Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100083, China
| | - Ling-Xiao Cao
- College of Engineering, China Agricultural University, Beijing, 100083, China
| | - Xi-Qing Wang
- State Key Laboratory of Plant Physiology and Biochemistry, Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100083, China
| | - Zhi-Zhu He
- College of Engineering, China Agricultural University, Beijing, 100083, China
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14
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Kumar A, Al-Jumaili A, Bazaka O, Ivanova EP, Levchenko I, Bazaka K, Jacob MV. Functional nanomaterials, synergisms, and biomimicry for environmentally benign marine antifouling technology. MATERIALS HORIZONS 2021; 8:3201-3238. [PMID: 34726218 DOI: 10.1039/d1mh01103k] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Marine biofouling remains one of the key challenges for maritime industries, both for seafaring and stationary structures. Currently used biocide-based approaches suffer from significant drawbacks, coming at a significant cost to the environment into which the biocides are released, whereas novel environmentally friendly approaches are often difficult to translate from lab bench to commercial scale. In this article, current biocide-based strategies and their adverse environmental effects are briefly outlined, showing significant gaps that could be addressed through advanced materials engineering. Current research towards the use of natural antifouling products and strategies based on physio-chemical properties is then reviewed, focusing on the recent progress and promising novel developments in the field of environmentally benign marine antifouling technologies based on advanced nanocomposites, synergistic effects and biomimetic approaches are discussed and their benefits and potential drawbacks are compared to existing techniques.
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Affiliation(s)
- Avishek Kumar
- Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
| | - Ahmed Al-Jumaili
- Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
- Medical Physics Department, College of Medical Sciences Techniques, The University of Mashreq, Baghdad, Iraq
| | - Olha Bazaka
- School of Science, RMIT University, PO Box 2476, Melbourne, VIC 3001, Australia
| | - Elena P Ivanova
- School of Science, RMIT University, PO Box 2476, Melbourne, VIC 3001, Australia
| | - Igor Levchenko
- Plasma Sources and Application Centre, NIE, Nanyang Technological University, 637616, Singapore
| | - Kateryna Bazaka
- Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
- Faculty of Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia
- School of Engineering, The Australian National University, Canberra, ACT 2601, Australia
| | - Mohan V Jacob
- Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
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15
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Zhai P, Zhang L, Cullen DA, Aireddy DR, Ding K. Construction of Inverse Metal-Zeolite Interfaces via Area-Selective Atomic Layer Deposition. ACS APPLIED MATERIALS & INTERFACES 2021; 13:51759-51766. [PMID: 34668691 PMCID: PMC8569675 DOI: 10.1021/acsami.1c15569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
The spatial confinement at metal-zeolite interfaces offers a powerful knob to steer the selectivity of chemical reactions on metal catalysts. However, encapsulating metal catalysts into small-pore zeolites remains a challenging task. Here, we demonstrate an inverse design of metal-zeolite interfaces, "metal-on-zeolite," constructed by area-selective atomic layer deposition. This inverse design bypasses the intrinsic synthetic issues associated with metal encapsulation, offering a potential solution for the fabrication of task-specific metal-zeolite interfaces for desired catalytic applications. Infrared spectroscopy and several probe reactions confirmed the spatial confinement effects at the inverse metal-zeolite interfaces.
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Affiliation(s)
- Peng Zhai
- Department
of Chemical Engineering, Louisiana State
University, Baton
Rouge, Louisiana 70803, United States
| | - Laibao Zhang
- Department
of Chemical Engineering, Louisiana State
University, Baton
Rouge, Louisiana 70803, United States
| | - David A. Cullen
- Center
for Nanophase Materials Sciences, Oak Ridge
National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Divakar R. Aireddy
- Department
of Chemical Engineering, Louisiana State
University, Baton
Rouge, Louisiana 70803, United States
| | - Kunlun Ding
- Department
of Chemical Engineering, Louisiana State
University, Baton
Rouge, Louisiana 70803, United States
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16
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Hermawan A, Amrillah T, Riapanitra A, Ong W, Yin S. Prospects and Challenges of MXenes as Emerging Sensing Materials for Flexible and Wearable Breath-Based Biomarker Diagnosis. Adv Healthc Mater 2021; 10:e2100970. [PMID: 34318999 DOI: 10.1002/adhm.202100970] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/21/2021] [Indexed: 12/20/2022]
Abstract
A fully integrated, flexible, and functional sensing device for exhaled breath analysis drastically transforms conventional medical diagnosis to non-invasive, low-cost, real-time, and personalized health care. 2D materials based on MXenes offer multiple advantages for accurately detecting various breath biomarkers compared to conventional semiconducting oxides. High surface sensitivity, large surface-to-weight ratio, room temperature detection, and easy-to-assemble structures are vital parameters for such sensing devices in which MXenes have demonstrated all these properties both experimentally and theoretically. So far, MXenes-based flexible sensor is successfully fabricated at a lab-scale and is predicted to be translated into clinical practice within the next few years. This review presents a potential application of MXenes as emerging materials for flexible and wearable sensor devices. The biomarkers from exhaled breath are described first, with emphasis on metabolic processes and diseases indicated by abnormal biomarkers. Then, biomarkers sensing performances provided by MXenes families and the enhancement strategies are discussed. The method of fabrications toward MXenes integration into various flexible substrates is summarized. Finally, the fundamental challenges and prospects, including portable integration with Internet-of-Thing (IoT) and Artificial Intelligence (AI), are addressed to realize marketization.
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Affiliation(s)
- Angga Hermawan
- Faculty of Textile Science and Technology Shinshu University 3‐15‐1 Tokida Ueda Nagano 386‐8567 Japan
- Institute of Multidisciplinary Research for Advanced Material (IMRAM) Tohoku University 2‐1‐1 Katahira, Aoba‐ku Sendai Miyagi 980‐8577 Japan
| | - Tahta Amrillah
- Department of Nanotechnology Faculty of Advanced Technology and Multidiscipline Universitas Airlangga Surabaya 60115 Indonesia
| | - Anung Riapanitra
- Department of Chemistry Faculty of Mathematics and Natural Science Jenderal Soedirman University Purwokerto 53122 Indonesia
| | - Wee‐Jun Ong
- School of Energy and Chemical Engineering Xiamen University Malaysia Selangor Darul Ehsan 43900 Malaysia
- Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT) Xiamen University Malaysia Sepang Selangor Darul Ehsan 43900 Malaysia
| | - Shu Yin
- Institute of Multidisciplinary Research for Advanced Material (IMRAM) Tohoku University 2‐1‐1 Katahira, Aoba‐ku Sendai Miyagi 980‐8577 Japan
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17
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Weber IC, Wang CT, Güntner AT. Room-Temperature Catalyst Enables Selective Acetone Sensing. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1839. [PMID: 33917648 PMCID: PMC8067997 DOI: 10.3390/ma14081839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/29/2021] [Accepted: 04/01/2021] [Indexed: 11/17/2022]
Abstract
Catalytic packed bed filters ahead of gas sensors can drastically improve their selectivity, a key challenge in medical, food and environmental applications. Yet, such filters require high operation temperatures (usually some hundreds °C) impeding their integration into low-power (e.g., battery-driven) devices. Here, we reveal room-temperature catalytic filters that facilitate highly selective acetone sensing, a breath marker for body fat burn monitoring. Varying the Pt content between 0-10 mol% during flame spray pyrolysis resulted in Al2O3 nanoparticles decorated with Pt/PtOx clusters with predominantly 5-6 nm size, as revealed by X-ray diffraction and electron microscopy. Most importantly, Pt contents above 3 mol% removed up to 100 ppm methanol, isoprene and ethanol completely already at 40 °C and high relative humidity, while acetone was mostly preserved, as confirmed by mass spectrometry. When combined with an inexpensive, chemo-resistive sensor of flame-made Si/WO3, acetone was detected with high selectivity (≥225) over these interferants next to H2, CO, form-/acetaldehyde and 2-propanol. Such catalytic filters do not require additional heating anymore, and thus are attractive for integration into mobile health care devices to monitor, for instance, lifestyle changes in gyms, hospitals or at home.
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Affiliation(s)
- Ines C. Weber
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, CH-8092 Zurich, Switzerland; (I.C.W.); (C.-t.W.)
| | - Chang-ting Wang
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, CH-8092 Zurich, Switzerland; (I.C.W.); (C.-t.W.)
| | - Andreas T. Güntner
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, CH-8092 Zurich, Switzerland; (I.C.W.); (C.-t.W.)
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), CH-8091 Zurich, Switzerland
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18
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van den Broek J, Bischof D, Derron N, Abegg S, Gerber PA, Güntner AT, Pratsinis SE. Screening Methanol Poisoning with a Portable Breath Detector. Anal Chem 2021; 93:1170-1178. [PMID: 33315383 DOI: 10.1021/acs.analchem.0c04230] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Methanol poisoning outbreaks after consumption of adulterated alcohol frequently overwhelm health care facilities in developing countries. Here, we present how a recently developed low-cost and handheld breath detector can serve as a noninvasive and rapid diagnostic tool for methanol poisoning. The detector combines a separation column and a micromachined chemoresistive gas sensor fully integrated into a device that communicates wirelessly with a smartphone. The performance of the detector is validated with methanol-spiked breath of 20 volunteers (105 breath samples) after consumption of alcoholic beverages. Breath methanol concentrations were quantified accurately within 2 min in the full breath-relevant range (10-1000 ppm) in excellent agreement (R2 = 0.966) with benchtop mass spectrometry. Bland-Altman analysis revealed sufficient limits of agreement (95% confidence intervals), promising to indicate reliably the clinical need for antidote and hemodialysis treatment. This simple-in-use detector features high diagnostic capability for accurate measurement of methanol in spiked breath, promising for rapid screening of methanol poisoning and assessment of severity. It can be applied readily by first responders to distinguish methanol from ethanol poisoning and monitor in real time the subsequent hospital treatment.
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Affiliation(s)
- Jan van den Broek
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, CH-8092 Zurich, Switzerland
| | - Dario Bischof
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, CH-8092 Zurich, Switzerland
| | - Nina Derron
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Sebastian Abegg
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, CH-8092 Zurich, Switzerland
| | - Philipp A Gerber
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Andreas T Güntner
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, CH-8092 Zurich, Switzerland
| | - Sotiris E Pratsinis
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, CH-8092 Zurich, Switzerland
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