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Montes-García V, Samorì P. Humidity Sensing with Supramolecular Nanostructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2208766. [PMID: 36810806 DOI: 10.1002/adma.202208766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/01/2022] [Indexed: 06/18/2023]
Abstract
Precise monitoring of the humidity level is important for the living comfort and for many applications in various industrial sectors. Humidity sensors have thus become one among the most extensively studied and used chemical sensors by targeting a maximal device performance through the optimization of the components and working mechanism. Among different moisture-sensitive systems, supramolecular nanostructures are ideal active materials for the next generation of highly efficient humidity sensors. Their noncovalent nature guarantees fast response, high reversibility, and fast recovery time in the sensing event. Herein, the most enlightening recent strategies on the use of supramolecular nanostructures for humidity sensing are showcased. The key performance indicators in humidity sensing, including operation range, sensitivity, selectivity, response, and recovery speed are discussed as milestones for true practical applications. Some of the most remarkable examples of supramolecular-based humidity sensors are presented, by describing the finest sensing materials, the operating principles, and sensing mechanisms, the latter being based on the structural or charge-transport changes triggered by the interaction of the supramolecular nanostructures with the ambient humidity. Finally, the future directions, challenges, and opportunities for the development of humidity sensors with performance beyond the state of the art are discussed.
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Affiliation(s)
- Verónica Montes-García
- Université de Strasbourg, CNRS, ISIS UMR 7006, 8 allée Gaspard Monge, Strasbourg, F-67000, France
| | - Paolo Samorì
- Université de Strasbourg, CNRS, ISIS UMR 7006, 8 allée Gaspard Monge, Strasbourg, F-67000, France
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Adhyapak PV, Kasabe AM, Bang AD, Ambekar J, Kulkarni SK. Highly sensitive, room temperature operated gold nanowire-based humidity sensor: adoptable for breath sensing. RSC Adv 2021; 12:1157-1164. [PMID: 35425134 PMCID: PMC8978864 DOI: 10.1039/d1ra07510a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/06/2021] [Indexed: 11/29/2022] Open
Abstract
A novel, highly sensitive gold nanowire (AuNW) resistive sensor is reported here for humidity sensing in the relative humidity range of 11% to 92% RH as well as for breath sensing. Both humidity and breath sensors are widely needed. Despite a lot of research on humidity and breath sensors, there is a need for simple, inexpensive, reliable, sensitive and selective sensors, which will operate at room temperature. Here we have synthesized gold nanowires by a simple, wet chemical route. The nanowires synthesized by us are 4–7 nm in diameter and a few micrometers long. The nanowires are amine functionalized. The sensor was prepared by drop casting gold nanowires on an alumina substrate to form a AuNW layer with different thicknesses (10, 20, 30 μm). The AuNW sensor is highly selective towards humidity and shows minimum cross sensitivity towards other gases and organic vapors. At an optimum thickness of 20 μm, the humidity sensing performance of the AuNW sensor over 11% to 92% RH was found to be superior to that of 10 and 30 μm thick layers. The response time of the sensor is found to be 0.2 s and the recovery time is 0.3 s. The response of the AuNW sensor was 3.3 MΩ/% RH. Further, the AuNW sensor was tested for sensing human breathing patterns. A novel, highly sensitive gold nanowire (AuNW) resistive sensor is reported here for humidity sensing in the relative humidity range of 11% to 92% RH as well as for breath sensing.![]()
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Affiliation(s)
- Parag V Adhyapak
- Centre for Materials for Electronics Technology (C-MET) Panchawati Off Pashan Road Pune -411008 India
| | - Aishwarya M Kasabe
- Centre for Materials for Electronics Technology (C-MET) Panchawati Off Pashan Road Pune -411008 India
| | - Amruta D Bang
- Centre for Materials for Electronics Technology (C-MET) Panchawati Off Pashan Road Pune -411008 India
| | - Jalindar Ambekar
- Centre for Materials for Electronics Technology (C-MET) Panchawati Off Pashan Road Pune -411008 India
| | - Sulabha K Kulkarni
- Centre for Materials for Electronics Technology (C-MET) Panchawati Off Pashan Road Pune -411008 India
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Electrochemical aptamer sensor based on metal ion-labeled polyethyleneimine gold nanoparticles for simultaneous detection of multiple disease markers. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139423] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Li Voti R, Leahu G, Sibilia C, Matassa R, Familiari G, Cerra S, Salamone TA, Fratoddi I. Photoacoustics for listening to metal nanoparticle super-aggregates. NANOSCALE ADVANCES 2021; 3:4692-4701. [PMID: 36134303 PMCID: PMC9417617 DOI: 10.1039/d1na00333j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/18/2021] [Indexed: 06/14/2023]
Abstract
Photoacoustic signal detection has been used to build a new strategy to determine the mesoscale self-assembly of metal nanoparticles in terms of size distribution and aggregate packing density (metal nanoparticle filling factor). A synergistic approach integrating photoacoustic signal and theoretical studies, validated by conventional light scattering and electron microscopy techniques, allows us to obtain a well-defined morphological interpretation of nanoparticle-based super-aggregates. By pumping light in a complex system, the acousto-thermal effect was listened to, providing information on the aggregation phenomena. Super-aggregates of covalently interconnected silver nanoparticles (AgNPs) functionalized with an organometallic dithiol are identified in solution, as a proof of concept for the versatility of the photoacoustic approach. According to our results, tiny AgNPs (size less than 10 nm) assembled into a 3D-network of super-aggregates (SA-AgNPs) with sizes in the range 100-200 nm and a filling factor in the range of 30-50%. Low-cost, rapid, and easy photoacoustic measurement in the low frequency range (less than 100 Hz) was revealed to be an innovative method to characterize the fundamental structure/property correlation of metal nanoparticle super-aggregates. This morpho-optical approach, which uses the absorption and scattering properties of nanoparticles in the liquid phase, opens new perspectives for advanced biomedical and structural applications.
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Affiliation(s)
- Roberto Li Voti
- Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome Via A. Scarpa 14 00161 Rome Italy
| | - Grigore Leahu
- Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome Via A. Scarpa 14 00161 Rome Italy
| | - Concita Sibilia
- Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome Via A. Scarpa 14 00161 Rome Italy
| | - Roberto Matassa
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Section of Human Anatomy, Sapienza University of Rome Via A. Borelli 50 00161 Rome Italy
| | - Giuseppe Familiari
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Section of Human Anatomy, Sapienza University of Rome Via A. Borelli 50 00161 Rome Italy
| | - Sara Cerra
- Department of Chemistry, Sapienza University of Rome P.le A. Moro 5 00185 Rome Italy
| | | | - Ilaria Fratoddi
- Department of Chemistry, Sapienza University of Rome P.le A. Moro 5 00185 Rome Italy
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Montes-García V, Squillaci MA, Diez-Castellnou M, Ong QK, Stellacci F, Samorì P. Chemical sensing with Au and Ag nanoparticles. Chem Soc Rev 2021; 50:1269-1304. [PMID: 33290474 DOI: 10.1039/d0cs01112f] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Noble metal nanoparticles (NPs) are ideal scaffolds for the fabrication of sensing devices because of their high surface-to-volume ratio combined with their unique optical and electrical properties which are extremely sensitive to changes in the environment. Such characteristics guarantee high sensitivity in sensing processes. Metal NPs can be decorated with ad hoc molecular building blocks which can act as receptors of specific analytes. By pursuing this strategy, and by taking full advantage of the specificity of supramolecular recognition events, highly selective sensing devices can be fabricated. Besides, noble metal NPs can also be a pivotal element for the fabrication of chemical nose/tongue sensors to target complex mixtures of analytes. This review highlights the most enlightening strategies developed during the last decade, towards the fabrication of chemical sensors with either optical or electrical readout combining high sensitivity and selectivity, along with fast response and full reversibility, with special attention to approaches that enable efficient environmental and health monitoring.
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Affiliation(s)
- Verónica Montes-García
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France.
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Binuclear organometallic Pt(II) complexes as stabilizing ligands for gold and silver metal nanoparticles. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Huang CB, Yao Y, Montes-García V, Stoeckel MA, Von Holst M, Ciesielski A, Samorì P. Highly Sensitive Strain Sensors Based on Molecules-Gold Nanoparticles Networks for High-Resolution Human Pulse Analysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2007593. [PMID: 33464719 DOI: 10.1002/smll.202007593] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/10/2020] [Indexed: 06/12/2023]
Abstract
High-performance flexible strain sensors are key components for the next generation of wearable health monitoring devices. Here, the authors have fabricated a novel strain sensor based on gold nanoparticles (AuNPs) interconnected by flexible and responsive molecular linkers. The combination of conductive AuNPs (25 nm in diameter) with tetra(ethylene glycol) dithiol (SH-TEG-SH) linkers yields a covalent 3D network which can be directly deposited onto prepatterned flexible supports exposing interdigitated Au electrodes. The electrically insulating nature of the linkers effectively defines the tunneling modulated charge transfer through the AuNPs network. When compressive/tensile strain is applied, the molecular linkers adopt a compressed/stretched conformation thus decreasing/increasing the interparticle distance, ultimately yielding an exponential increase/decrease of the tunneling current when voltage is applied. The strain sensor displays state-of-the-art performances including a highly sensitive response to both tensile and compressive strain, as quantified by a high gauge factor (GF≈126) combined with other superior sensing properties like high flexibility, short response time (16.1 ms), and good robustness (>2000 cycles). Finally, the applicability of the device for health monitoring is demonstrated: high-resolution artery pulse waves are acquired by placing the strain sensor onto the skin allowing the extraction of important physical parameters for human-health assessment.
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Affiliation(s)
- Chang-Bo Huang
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, F-67000, France
| | - Yifan Yao
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, F-67000, France
| | - Verónica Montes-García
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, F-67000, France
| | - Marc-Antoine Stoeckel
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, F-67000, France
| | - Miriam Von Holst
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, F-67000, France
| | - Artur Ciesielski
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, F-67000, France
| | - Paolo Samorì
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, F-67000, France
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Huang C, Ciesielski A, Samorì P. Molecular Springs: Integration of Complex Dynamic Architectures into Functional Devices. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914931] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Chang‐Bo Huang
- University of StrasbourgCNRSISIS UMR 7006 8 Alleé Gaspard Monge F-67000 Strasbourg France
| | - Artur Ciesielski
- University of StrasbourgCNRSISIS UMR 7006 8 Alleé Gaspard Monge F-67000 Strasbourg France
| | - Paolo Samorì
- University of StrasbourgCNRSISIS UMR 7006 8 Alleé Gaspard Monge F-67000 Strasbourg France
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Huang CB, Ciesielski A, Samorì P. Molecular Springs: Integration of Complex Dynamic Architectures into Functional Devices. Angew Chem Int Ed Engl 2020; 59:7319-7330. [PMID: 31898855 DOI: 10.1002/anie.201914931] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Indexed: 11/06/2022]
Abstract
Molecular/supramolecular springs are artificial nanoscale objects possessing well-defined structures and tunable physicochemical properties. Like a macroscopic spring, supramolecular springs are capable of switching their nanoscale conformation as a response to external stimuli by undergoing mechanical spring-like motions. This dynamic action offers intriguing opportunities for engineering molecular nanomachines by translating the stimuli-responsive nanoscopic motions into macroscopic work. These nanoscopic objects are reversible dynamic multifunctional architectures which can express a variety of novel properties and behave as adaptive nanoscopic systems. In this Minireview, we focus on the design and structure-property relationships of supramolecular springs and their (self-)assembly as a prerequisite towards the generation of novel dynamic materials featuring controlled movements to be readily integrated into macroscopic devices for applications in sensing, robotics, and the internet of things.
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Affiliation(s)
- Chang-Bo Huang
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, F-67000, Strasbourg, France
| | - Artur Ciesielski
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, F-67000, Strasbourg, France
| | - Paolo Samorì
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Alleé Gaspard Monge, F-67000, Strasbourg, France
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