Article
Biophysics
Alina Vasilescu, Borys Hrinczenko, Greg M. Swain, Serban F. Peteu
Summary: This mini-review introduces the reader to research on exhaled breath analysis for detecting abnormal chemical markers reflective of respiratory diseases. It discusses two main groups of sensing methods: mass spectrometry and (bio)sensors, with a focus on biosensor applications for EB and EBC analyses. The review concludes with recommendations for future development of EBC biomarker sensing in the near and long term.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Physical
Jingjing Zheng, Xiaotian Li, Bo Zhang, Xiaoxin Zou, Qihua Liang, Hui Chen, Guo-Dong Li
Summary: Pt-decorated foam-like Ga-In bimetal oxide nanofibers show enhanced sensing response towards acetone detection, with high response, low detection limit, short response time, and high moisture resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Lijuan Fu, Dengwang Li, Wei Tang
Summary: By synthesizing and using 1D Co3O4, the detection selectivity of acetone markers in human exhaled breath can be improved. The sensor, derived from MOF-74, demonstrates high moisture resistance and low detection limit, making it effective for detecting acetone in exhaled breath.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Jun-Young Jeon, Sang-Joon Park, Tae-Jun Ha
Summary: In this study, wearable chemiresistive-type gas sensors based on bar-printed ionogels were developed for the detection of nitrogen oxide (NOx), showing excellent sensing performance and stability with high selectivity towards different oxidizing and reducing gases.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Review
Engineering, Electrical & Electronic
Yusra Obeidat
Summary: Studies have shown a correlation between volatile acetone in breath and ketone bodies in blood, making breath analysis an attractive method for diagnosing diabetes. There is a need for affordable, easy to use, and accurate monitoring devices to help individuals with diabetes.
IEEE SENSORS JOURNAL
(2021)
Article
Health Care Sciences & Services
Dian Kesumapramudya Nurputra, Ahmad Kusumaatmadja, Mohamad Saifudin Hakim, Shidiq Nur Hidayat, Trisna Julian, Budi Sumanto, Yodi Mahendradhata, Antonia Morita Iswari Saktiawati, Hutomo Suryo Wasisto, Kuwat Triyana
Summary: The RT-qPCR method is widely used for detecting SARS-CoV-2, but clinicians prefer to diagnose COVID-19 by combining clinical signs and symptoms, laboratory tests, imaging, and multivariable clinical prediction models. Researchers report the development of a low cost, noninvasive method using a portable electronic nose (GeNose C19) to rapidly screen for COVID-19.
NPJ DIGITAL MEDICINE
(2022)
Article
Polymer Science
Yin-Hsuan Chang, Ting-Hung Hsieh, Kai-Chi Hsiao, Ting-Han Lin, Kai-Hsiang Hsu, Ming-Chung Wu
Summary: Human breath contains water, oxygen, carbon dioxide, and gases related to metabolism. A highly sensitive sensing material (WO3/SnO2/Ag/PMMA) fabricated by electrospinning is proposed to detect breath acetone. The material exhibits a sensing limit of 20 ppm and shows specificity for acetone even in ambient humidity.
Article
Engineering, Multidisciplinary
Janusz Smulko, Tomasz Chludzinski, Tomasz Majchrzak, Andrzej Kwiatkowski, Sebastian Borys, Aylen Lisset Jaimes-Mogollon, Cristhian Manuel Duran-Acevedo, Omar Geovanny Perez-Ortiz, Radu Ionescu
Summary: This paper presents a procedure and set-up for an electronic nose system to detect patients suffering from dengue, a mosquito-borne tropical disease, by analyzing exhaled breath. Low-power resistive gas sensors were used to detect volatile organic compounds in the breath. The experimental studies showed that the system had a detection accuracy of over 90% for dengue patients.
Article
Chemistry, Analytical
Jun Ho Lee, Seung-Eun Baek, Hyun-Sook Lee, Dahl-Young Khang, Wooyoung Lee
Summary: Through experiments and analysis, researchers have successfully developed highly sensitive acetone sensors. Among the four different sensors, the NC(0.5 h)/Line sensor exhibited the best response capability, with a low detection limit as well.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Electrical & Electronic
Hendrick Hendrick, Rahmat Hidayat, Gwo-Jiun Horng, Zhi-Hao Wang
Summary: This study utilizes an electronic nose combined with machine learning to identify tuberculosis, achieving an exhaled breath accuracy of 92%, making it a feasible non-invasive detection method.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Bader Mohammed Alghamdi, Nawaf Mutab Alharbi, Ibrahim Olanrewaju Alade, Badriah Sultan, Mohammed Mansour Aburuzaizah, Turki N. Baroud, Qasem A. Drmosh
Summary: Human exhaled breath can be used to detect biomarkers for diseases such as diabetes and cancer, with acetone level indicating the presence of these illnesses. The development of sensors capable of identifying the onset of lung cancer or diabetes is crucial for effective monitoring and treatment of these diseases.
Article
Chemistry, Analytical
Li Jiang, Siyuan Lv, Wanqing Tang, Lianjing Zhao, Caileng Wang, Jing Wang, Tianshuang Wang, Xinrui Guo, Fangmeng Liu, Chenguang Wang, Peng Sun, Chuan Zhang, Jie Zheng, Geyu Lu
Summary: Breath analysis using gas sensors, particularly acetone sensors, plays a crucial role in pre-diagnosis of diabetes. The developed mixed potential type acetone sensor shows excellent sensitivity and stability, with strong correlations established among response values, acetone concentrations, and blood ketone concentrations for pre-diagnosis of diabetes.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Nanoscience & Nanotechnology
Vu Xuan Hien, Luong Huu Phuoc, Cao Tien Khoa, Dang Duc Vuong, Nguyen Duc Chien
Summary: Iron oxide nanostructures with excellent properties have been synthesized on Fe foil using a simple process. These submicron flowers exhibit outstanding gas-sensing characteristics, particularly for acetone, showing potential for practical applications. Control over the shapes and dimensions of the flowers can be achieved by adjusting the treatment time.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2021)
Article
Optics
Shuo Liu, Xiaolong Dong, He Cao, Jiaqi Lv, Linwan Zhao, Yuanqin Xia, Yulei Wang, Zhiwei Lv
Summary: A six-ring node-less anti-resonant hollow-core fiber gas sensor is proposed for measuring the concentration of human exhaled nitric oxide in the mid-infrared band. The sensitivity and minimum detectable absorbance of the sensor are determined through theoretical simulations, and the detection ranges for different types of bronchitis and asthma are obtained by simulating the exhaled nitric oxide concentrations of different individuals.
OPTICS AND LASER TECHNOLOGY
(2022)
Review
Materials Science, Multidisciplinary
Mohan Velumani, Asokan Prasanth, Subramaniyam Narasimman, Arunkumar Chandrasekhar, Abraham Sampson, Samir Ranjan Meher, Sivacoumar Rajalingam, Elizabeth Rufus, Zachariah C. Alex
Summary: The quantification of gases in breath has gained attention as a non-invasive and painless method for early detection of physiological disorders. Nanomaterial-based sensors show promise in identifying volatile organic compounds associated with diseases. This review provides details about biomarkers in exhaled breath, sensor technologies, and discusses the challenges of sensor characteristics.
Article
Materials Science, Multidisciplinary
Taikun Wang, Fapeng Sun, Wenting Hong, Chuanyong Jian, Qinkun Ju, Xu He, Qian Cai, Wei Liu
Summary: In this paper, the growth of ultrathin MnTe nanosheets on mica by the chemical vapor deposition method is reported. The thickness of the nanosheets can be controlled by tuning the gas flow rate, and the shape can be controlled by the H-2 concentration. Furthermore, MnTe/WS2 heterojunctions fabricated by the mechanical stacking method exhibit excellent photoresponsivity, external quantum efficiency, and photodetectivity, as well as higher photoresponse speed compared with the MnTe-based photodetector. This work provides a possible application of MnTe-based heterojunctions for developing high-performance photodetectors.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Fan Liu, Lei Li, Shuhong Xu, Jiabin Guo, Ying Ling, Yongyi Zhang, Wenbin Gong, Lei Wei, Chunlei Wang, Qichong Zhang, Qingwen Li
Summary: An effective strategy of cobalt-doped MoS2 nanosheets directly grown on carbon nanotube fibers was proposed to develop efficient cathodes for fiber-shaped aqueous zinc-ion batteries (FAZIBs). The introduction of cobalt-ion activates the transformation of MoS2 crystal structure and expands the interlayer spacing, resulting in remarkable capacity, high rate capability, and impressive durability.
ENERGY STORAGE MATERIALS
(2023)
Article
Engineering, Environmental
Zhaoan Hong, Wengting Hong, Bicheng Wang, Qian Cai, Xu He, Wei Liu
Summary: By introducing an appropriate amount of antimony oxide, MoS2 nanosheets with high 1T content (61.5%) were successfully synthesized using a chemical vapor deposition method. The 1T-2H hybrid structures grown in this way are thermodynamically stable and exhibit enhanced hydrogen evolution reaction (HER) activity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Maolin Li, Bo Zhang, Baoju Zhang, Wei Liu, Taekon Kim, Wei Wang, Xiaonan Zhao, Cheng Wang
Summary: This paper proposes a multi-carrier based positional modulation (PM) design with practical discrete phase values for the employed reconfigurable metasurface. It allows multiple signals to be transmitted to the desired position(s) at multiple frequencies over a single channel simultaneously. Design examples are provided to demonstrate its effectiveness.
DIGITAL SIGNAL PROCESSING
(2023)
Article
Engineering, Electrical & Electronic
Jingjing Cai, Panpan Li, Wei Liu, Dan Bao, Yangyang Dong
Summary: This study presents a detailed analysis of the degrees of freedom (DOFs) of the fourth-order sum and difference co-arrays for direction of arrival (DOA) estimation under different signal characteristics. The combination of noncircularity, fourth-order cumulants, and sparse arrays is explored to increase the DOFs for DOA estimation. The study aims to clarify and provide a detailed analysis for the fourth-order co-array under a general signal model, considering various factors such as noncircular phases, cumulants, and array configurations.
DIGITAL SIGNAL PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Qingshun Fan, Haojie Xu, Shihai You, Yu Ma, Yi Liu, Wuqian Guo, Xinxin Hu, Beibei Wang, Changhao Gao, Wei Liu, Junhua Luo, Zhihua Sun
Summary: 2D Dion-Jacobson (DJ) phase lead-free hybrid perovskite has great potential in X-ray detection with high sensitivity, low detection limit, and superior anti-fatigue properties. The single-crystal-based X-ray detector of (HIS)(2)AgSbBr8 exhibited remarkable semiconductor characteristics and excellent photoelectric response. This innovative application of hybrid perovskites in eco-friendly and efficient X-ray detection opens up new possibilities in the field.
Article
Ophthalmology
Jiao-Lian Liu, Jia-Yue Ji, Qing Ye, Liu-Qing Wei, Xin Zhong, Lin-Zhi Jiang, Jing Zeng
Summary: Clinical efficacy of SMILE-derived lenticule patches in corneal dermoid excision was observed. 17 patients with corneal dermoid received dermoid removal combined with SMILE-derived lenticule transplantation. Most patients showed improved visual acuity postoperatively, but changes in corneal astigmatism were not significant. Some patients experienced complications, but these were effectively treated with medication.
INTERNATIONAL JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Psychology, Multidisciplinary
Hui Li, Luming Hu, Liuqing Wei, Hong He, Xuemin Zhang
Summary: This study utilized a cross-channel visual-audio dual-task paradigm to investigate the role of working memory in multiple object tracking (MOT). The results showed that spatial working memory (SWM) significantly impaired the tracking capacity of the MOT task, while nonspatial object working memory (OWM) did not have a significant effect. These findings provide empirical evidence for the involvement of working memory, specifically spatial working memory, in multiple object tracking.
SCANDINAVIAN JOURNAL OF PSYCHOLOGY
(2023)
Article
Polymer Science
Yu Yuan, Shihu Zhu, Jun Zhu, Peixin Niu, Ailing Sun, Xingjiang Liu, Liuhe Wei, Yuhan Li
Summary: This study developed a novel strategy to incorporate self-complementary quadruple hydrogen bonds into multi-branch polyurethane, constructing a supramolecular adhesive with high adhesion strength and multiple reusability. It is a promising candidate for practical use in portable electronics.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Weilong Wang, Hua Chen, Wei Liu, Qing Wang, Gang Wang
Summary: This paper introduces a trilinear decomposition method to estimate the 4-D parameters, including DOD, RFTT, DOA, and RFTR, for a MIMO array system with NF parameter estimation. The proposed method is search-free and has automatically paired results, providing accurate estimates from the velocity vector sensors. The performance of the method is demonstrated through numerical examples.
Article
Engineering, Electrical & Electronic
Ye Tian, Xinyu Gao, Wei Liu, Hua Chen, Ming Jin
Summary: In this work, a method based on the generalized array manifold (GAM) is developed to localize mixed coherently distributed (CD) and incoherently distributed (ID) sources. Source enumeration and type classification are achieved by employing the minimum description length (MDL) criterion, the covariance matrix difference technique, and second-order statistics. The method estimates the nominal direction of arrival (DOA) of ID sources using the rank-reduction principle and separates CD sources from ID ones using the oblique projection technique. The performance of the proposed method is demonstrated through simulations.
Review
Chemistry, Physical
Abdul Basit, Jiwu Xin, G. Murtaza, Lei Wei, Abdul Hameed, Guoyu Wang, Jiyan Y. Dai
Summary: This review summarizes the strategies for designing high-performance thermoelectric materials and modules using approaches such as defect engineering, interfaces, nano-porous inclusions, thin films, dislocations, nano-inclusions, and polycrystalline bulks, and discusses the fundamentals, challenges, outlooks, and future development of liquid-like thermoelectric materials Cu-2(S, Se, Te). It is expected to assist future researchers in selecting potential materials for exploring thermoelectricity and other efficient energy conversion technologies.
Article
Chemistry, Multidisciplinary
Chuanlong Li, Wenbo Dong, Longyu Li, Zhengli Dou, Yuhan Li, Liuhe Wei, Qin Zhang, Qiang Fu, Kai Wu
Summary: In this study, a self-reinforcing polyurethane adhesive is synthesized, which exhibits only interfacial failure but still possesses superior adhesive strength and toughness. The adhesive is designed by incorporating a hanging adhesive moiety, hierarchical H-bond moieties, and a crystallizable soft segment into one macromolecular polyurethane. The adhesive can effectively associate with the target substrate due to the hanging adhesive moiety, while the hierarchical H-bond moieties and crystallizable soft segment enable large lap-shear deformations and strain-induced crystallization, resulting in remarkable adhesive strength and work of debonding.
MATERIALS HORIZONS
(2023)
Article
Engineering, Electrical & Electronic
Zhicheng Zhang, Ye Tian, Wei Liu, Hua Chen
Summary: This paper proposes an efficient source enumeration algorithm for large-scale arrays using a two-step difference operation of linear shrinkage (LS) coefficients of the sample covariance matrix (SCM) in large-dimensional scenarios. It is shown that the difference between noise LS coefficients tends to zero and there exists a clear gap between the last signal LS coefficient (alpha) over cap ((d-1)) and the first noise LS coefficient (alpha) over cap ((d)) in relatively high signal-to-noise ratio (SNR) cases. This algorithm achieves initial source enumeration and improved estimation results, and it can estimate a large number of sources.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Qianqian Hu, Changbao Huang, Lei Wei, Haixin Wu, Youbao Ni, XueZhou Yu, Yanan Song
Summary: In this study, a CdSe crystal was grown using a capsuled Mo-crucible method to maintain its chemical composition during the melting process. By combining this method with a seed directional technique, a high-quality CdSe crystal with the largest size to date of φ40 x 100 mm³ was successfully obtained. The crystal displayed low absorption coefficients, good crystallinity, and optical homogeneity.