Article
Chemistry, Physical
Yuanyi Zhang, Xia Xin, Hui Sun, Qianru Liu, Jinniu Zhang, Gang Li, Jianzhi Gao, Hongbing Lu, Chunlan Wang
Summary: The porous ZnO-SnO2-Zn2SnO4 heterojunction nanofibers were prepared using electrospinning and high ramp rate heat treatment, showing significantly enhanced ethanol sensing capabilities under UV light irradiation. The response of ZnO-SnO2-Zn2SnO4 nanofibers to ethanol was much higher than that of pure Zn2SnO4 nanofibers, and remained effective even in high humidity conditions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Luheng Wang, Yang Yang
Summary: A planar coil made of SnO2 is designed to simultaneously measure humidity and non-contacting gap. The coil is humidity and gap sensitive due to the spiral structure of SnO2 inducing the eddy current effect. Humidity variation results in impedance and dc-resistance changes, while gap variation only induces impedance changes. The feasibility of using the SnO2 coil to measure humidity and gap is demonstrated through calibrating the variations of impedance and dc-resistance.
IEEE SENSORS JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Bairui Tao, Lupeng Feng, Fengjuan Miao, Yu Zang
Summary: This study proposes a chipless RFID humidity sensor tag based on SnO2/G nanomaterial, which has recognition and sensing functions. By doping G into SnO2, nano-spherical SnO2 powder is generated and used in the microstrip coupled line resonator structure. Humidity sensitive materials are coated on the u-shaped resonator for humidity sensing, while the other two resonators can code different states. Experimental results demonstrate the excellent humidity sensing performance of the humidity sensitive material.
Article
Engineering, Electrical & Electronic
Joyce Joseph, N. Pradeep, V. S. Vadgama, P. S. Solanki, N. A. Shah, D. D. Pandya
Summary: This study investigated the humidity sensing properties of Fe doped SnO2 nanocoral (FSNC)-like structures achieved by hydrothermal synthesis. Different shapes of FSNC samples showed similar crystallite sizes and were tested for humidity sensing properties in a range of 20-80% relative humidity. Among the various shapes of FSNC, samples with rod-shaped tentacles exhibited the highest sensitivity.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Vernica Verma, N. K. Pandey, Ajeet Singh, Peramjeet Singh, Priya Gupta, B. C. Yadav
Summary: This study reports the fabrication of a novel biphasic LPG sensor that operates at room temperature. The Cu6Sn5:SnO2 nanocomposite thin films were synthesized through a hydrothermal route, and their microstructural details were determined using XRD. The films exhibited enhanced sensitivity and quick response and recovery time for LPG sensing at room temperature, with the Cu6Sn5 dominant phase nanocomposite showing improved performance. The improved performance may be attributed to the formation of a crystalline structure.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Sourav Pan, G. Gayathri, T. S. Reshma, G. Mangamma, Arun K. Prasad, A. Das
Summary: In this study, a humidity sensor working at low pressure is demonstrated using SnO2 Quantum Dots(QDs). These QDs possess a large surface area, enabling them to absorb moisture even at low pressure. The correlation between the QDs and humidity sensing is extensively investigated, achieving high reproducibility performance under vacuum for the first time.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Materials Science, Ceramics
Ayman Madbouly, Mohamed Morsy, Radiyah F. Alnahdi
Summary: The evaluation of indoor humidity is challenging compared to other environmental parameters. High-performance humidity sensors can be achieved by selecting appropriate sensing materials and structural tuning. In this study, SnO2/rGO and SnO2/rGO doped with Co nanocomposites were produced and characterized. The incorporation of Co onto the rGO/SnO2 composite was confirmed by XRD, SEM, and TEM analysis. The humidity sensing behavior of both structures was evaluated, and the results showed that Co doping improved the sensitivity, response time, and recovery time.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Xiaojie Zhu, Xueting Chang, Sikai Tang, Xiaoqiu Chen, Weixiang Gao, Shicong Niu, Junfeng Li, Yingchang Jiang, Shibin Sun
Summary: This study successfully addresses the trade-off between gas-sensing performance and anti-humidity ability of chemiresistive gas sensors by preparing hydrophobic inorganic CeO2/SnO2 heterostructure films. The sensors based on these films demonstrate excellent gas-sensing performance towards TEA and promising anti-humidity ability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Huangping Yan, Zilu Chen, Linyuan Zeng, Zijun Wang, Gaofeng Zheng, Rui Zhou
Summary: A flexible and high-performance humidity sensor based on SnO2/rGO nanocomposites was developed, with different doping ratios of rGO affecting the sensitivity and response time of the sensor. The sensor with 2 wt% rGO-doping demonstrated high sensitivity, fast response time, and good flexibility and stability even under bending conditions. Furthermore, the sensor could accurately reflect different breathing states and track breathing intervals as short as 3 seconds, showing potential for real-time monitoring of human health.
Article
Chemistry, Analytical
Moumita Deb, Mei-Yu Chen, Po-Yi Chang, Pin-Hsuan Li, Ming-Jen Chan, Ya-Chung Tian, Ping-Hung Yeh, Olivier Soppera, Hsiao-Wen Zan
Summary: We developed a highly flexible relative humidity sensor using metal oxides on food plastic wrap, achieved by near-infrared laser annealing at low temperature. The device can accurately detect a wide range of humidity levels with small incremental changes. It also showed potential for real-time breath pattern analysis, making it suitable for wearable electronics or respiration monitoring.
Article
Engineering, Electrical & Electronic
Haonan Chen, Dongzhi Zhang, Qiannan Pan, Xiaoshuang Song
Summary: This paper presents an accurate and reliable QCM humidity sensor based on metal-organic frameworks (MOFs)-derived SnO2/chitosan (CS) nanostructure, which exhibits high sensitivity, short response time, excellent selectivity, and stability for potential applications in identifying humidity change and analyzing aspiration status. The resonant behavior and water molecules adsorption/desorption dynamics on the MOF-SnO2/CS composite are analyzed, revealing the potential of this sensor in humidity sensing applications.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Mohamed Morsy, A. G. Darwish, M. M. Mokhtar, Yahia Elbashar, Amir Elzwawy
Summary: A star-like rGO/SnO2/Co3O4 composite was synthesized and employed as a temperature sensor, showing a linear response within a wide range of temperature and humidity values.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Multidisciplinary
Jia-Kang Wu, Ke Gao, Wei Yue, Tian Qiang, Nam -Young Kim, Wenhao Song, Xiao-Feng Gu, Svetlana Von Gratowski, Jun-Ge Liang
Summary: Adjusting the frequency of a humidity sensor can enhance sensitivity and detection speed, thereby affecting its performance.
Article
Chemistry, Physical
Mohini Panday, Gaurav K. Upadhyay, L. P. Purohit
Summary: Antimony-doped SnO2 thin films were prepared and tested as gas and humidity sensors. The results showed that the doping of antimony can significantly affect the optical and electrical properties of the films, leading to excellent sensing response at different temperatures and humidities.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
S. Gherardi, G. Zonta, M. Astolfi, C. Malagu
Summary: This study investigates the effects of humidity on the conduction mechanisms of two sensor materials and introduces the concept of two-dimensional sensitivity. It shows that the second material is less affected by humidity, making it more useful in medical and environmental applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Materials Science, Biomaterials
Mohammadreza Kasravi, Alireza Yaghoobi, Tahereh Tayebi, Mahsa Hojabri, Abdolkarim Talebi Taheri, Fatemeh Shirzad, Bahram Jambar Nooshin, Radman Mazloomnejad, Armin Ahmadi, Fatemeh A. Tehrani, Ghasem Yazdanpanah, Mohammad Hadi Farjoo, Hassan Niknejad
Summary: As a promising approach in translational medicine, the decellularization of discarded livers to produce bioscaffolds that support recellularization has potential in overcoming the limitations of conventional liver transplantation. In this study, the researchers investigated the use of matrix metalloproteinase (MMP) inhibition to preserve the extracellular matrix (ECM) during liver decellularization. The results demonstrated that the application of an MMP inhibitor significantly improved the preservation of ECM components and mechanical properties of the bioscaffolds, which supported cell viability and function in vitro. The study also confirmed that the MMP inhibition led to the inhibition of MMP2 and MMP9, providing a novel method to enhance ECM preservation during liver decellularization.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Mohammadsadegh Nadimifar, Weiguang Jin, Clara Coll-Satue, Gizem Bor, Paul Joseph Kempen, Ali Akbar Moosavi-Movahedi, Leticia Hosta-Rigau
Summary: This study presents a metal-phenolic self-assembly approach that can prepare nanoparticles fully made of hemoglobin. The nanoparticles exhibit good oxygen binding and releasing capabilities.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jyoti Kumari, Roel Hammink, Jochem Baaij, Frank A. D. T. G. Wagener, Paul H. J. Kouwer
Summary: Fibrosis is the formation of fibrous connective tissue in response to injury, leading to organ dysfunction. A novel hybrid hydrogel combining synthetic polyisocyanide with hyaluronic acid has been developed, showing strong antifibrotic properties.
BIOMATERIALS ADVANCES
(2024)
Letter
Materials Science, Biomaterials
Melissa Machado Rodrigues, Cristian Padilha Fontoura, Charlene Silvestrin Celi Garcia, Sandro Tomaz Martins, Joao Antonio Pegas Henriques, Carlos Alejandro Figueroa, Mariana Roesch Ely, Cesar Aguzzoli
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jessica Polak, David Sachs, Nino Scherrer, Adrian Suess, Huan Liu, Mitchell Levesque, Sabine Werner, Edoardo Mazza, Gaetana Restivo, Mirko Meboldt, Costanza Giampietro
Summary: Human skin equivalents (HSEs) play a crucial role in tissue engineering. This study introduces a 3D-printed culture insert to apply a static radial constraint on HSEs and examines its effects on tissue characteristics. The results show that the diameter of the culture insert significantly influences tissue contraction, fibroblast and matrix organization, keratinocyte differentiation, epidermal stratification, and basement membrane formation. This study provides important insights for the design of skin tissue engineering.
BIOMATERIALS ADVANCES
(2024)
Review
Materials Science, Biomaterials
Shiliang Chen, Tianming Du, Hanbing Zhang, Jing Qi, Yanping Zhang, Yongliang Mu, Aike Qiao
Summary: This paper reviewed the primary methods for improving the overall properties of biodegradable zinc stents. It discussed the mechanical properties, degradation behavior, and biocompatibility of various improvement strategies. Alloying was found to be the most common, simple, and effective method for improving mechanical properties. Deformation processing and surface modification further improved the mechanical properties and biological activity of zinc alloys. Meanwhile, structural design could endow stents with special properties. Manufacturing zinc alloys with excellent properties and exploring their interaction mechanism with the human body are areas for future research.
BIOMATERIALS ADVANCES
(2024)
