Article
Engineering, Mechanical
Alcemir Costa de Souza, Ewerton Emmanuel da Silva Calixto, Fernando Luiz Pellegrini Pessoa, Valeria L. da Sila, Luiz Octavio Vieira Pereira
Summary: This study proposes a simple CO2 meter for accurately measuring the CO2 content in Brazilian pre-salt production flows. By analyzing the pressure change during a heating assay of an imprisoned sample, the proposed meter is capable of identifying the mixture properties under different CO2 levels.
FLOW MEASUREMENT AND INSTRUMENTATION
(2024)
Article
Engineering, Mechanical
Mona Mary Varghese, Chaithanya P. Devan, Samiksha M. Masram, Teja Reddy Vakamalla
Summary: This work investigated the influence of particle shape on fluidization behavior at different inlet superficial gas velocities. The experiments were conducted using a laboratory-scale 3D circular fluidized bed column with Geldart D particles of various shapes. The results showed that non-spherical particles had lower minimum fluidization velocities and higher bed expansion compared to spherical particles. Particle shape significantly affected solids holdup, with spherical particles exhibiting higher solids holdup at the same superficial velocity. Frequency domain analysis of pressure signals using Fast Fourier Transform (FFT) and Power Spectral Density (PSD) revealed flow regime transitions associated with changes in particle shape.
FLOW MEASUREMENT AND INSTRUMENTATION
(2024)
Article
Instruments & Instrumentation
B. Kronheim, A. Belloni, T. K. Edberg, S. C. Eno, C. Howe, C. Palmer, C. Papageorgakis, M. Paranjpe, S. Sriram
Summary: This paper presents measurements of the relative decrease of light output during irradiation of small plastic scintillator tiles read out by silicon photomultipliers. The study found substantial temporary damage during low-temperature irradiation, regardless of oxygen concentration and wrapping material. The wrapping material had an impact on the relative light loss, with the 3M(TM) Enhanced Specular Reflector Film showing the largest loss. The light loss was less at warmer temperatures and similar to that in standard atmosphere with 3% oxygen concentration. Evidence of a plateau in the radical density was seen for the data at 0 degrees C.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Chemistry, Analytical
Dong Yeop Kang, Yeseul Jang, Hyelim Lee, Jeehee Lee, Miso Kang, Dong Woon Kim, Sangkyu Lee, Sanghee Lee
Summary: In this study, a novel optogenetic system for STING clustering, OptoSTING, was developed. By using light response, OptoSTING can efficiently induce the clustering of STING, which facilitates the STING signaling pathway through puncta formation of IRF3.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yu Zhang, Xinyi Zhao, Lingfan Xu, Yuai Duan, Jing Yuan, Zhongfeng Li, Tianyu Han
Summary: This study presents the synthesis and characterization of a novel compound, HMPPM, and investigates its vapofluorochromic properties. The compound was further utilized to develop cellulose and wearable sensors for the detection of volatile organic compounds (VOCs).
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Huacui Xiang, Zhijian Li, Haoxin Zheng, Xiaohong Jiang, Haiwei Wu, Hongwei Zhou, Hanbin Liu
Summary: This study improves the sensitivity and selectivity of sensors by controlling the solid-gas interface and manipulating the solid-solid interface. Sensors based on electrospinning cellulose show high sensitivity for humidity detection and can also detect various VOCs. The introduction of silver nanowires to establish a solid-solid interface improves the selectivity for VOCs with faster response/recovery time and long-term cycle stability.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Qi Liu, Yuming Zhang, Qiqi Sun, Hao Li, Wenmiao Chen, Sirong Yu, Yanli Chen
Summary: In this study, a chemiresistive sensor for NO2 detection was fabricated using Bi nanoparticles doped Mn-porphyrin MOF. The sensor exhibited high selectivity and sensitivity, with Bi nanoparticles serving as electron donors to facilitate electron migration. The simultaneous adsorption of NO2 and electron transfer was achieved through the combination of Mn-porphyrin as the detecting site and Bi nanoparticles as supportive sites. Compared to traditional Mn-porphyrin MOF, the Bi@PCN-222-Mn sensor showed higher sensitivity and lower detection limit for NO2.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yujie Song, Jinyue Shi, Yeyu Wu, Ke-Jing Huang, Xuecai Tan
Summary: In this study, a self-powered biosensing platform using hybridization chain reaction (HCR) and CRISPR/Cas12a amplification cascade was developed for sensitive detection of miRNA-21. The method showed high selectivity and sensitivity, capable of accurately detecting tumor markers in clinical applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jihee Kim, Masoud Nazarian-Samani, Jihyun Lee, Sang-kil Lee, Kyu Hyong Lee, Ji Hee Pi, Yu Jin Kim, Sanghyeon Lee, Wooyoung Lee
Summary: High selectivity and fast response are crucial for protecting human health in dangerous environments. The p-n SnO/SnO2 heterostructure, with its synergistic effect on semiconducting properties and interfacial electric field, shows excellent sensing performances. It has a high response rate, fast response time, and superior selectivity compared to other target gases. The presence of oxygen vacancies in the SnO/SnO2 heterostructure is supported by Raman and EPR results, and the role of these vacancies as an effective electron donor for adsorbed oxygen molecules and NO2 target gas is described by XPS and ToF-SIMS analyses. The direct formation of oxygen vacancies in SnO/SnO2 heterostructures is an important reference for the development of high-performance NO2 gas sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Tengfei Wang, Liwen Wang, Guang Wu, Dating Tian
Summary: In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Gajanan M. Hingangavkar, Sujit A. Kadam, Yuan-Ron Ma, Manickam Selvaraj, Ramesh N. Mulik, Vikas B. Patil
Summary: This study utilizes a simple hydrothermal method to decorate MoS2 nanoparticles on rGO sheets, improving the H2S gas detection performance. The results show that the MoS2-rGO (3 wt%) nanocomposite sensor exhibits outstanding sensing performance towards H2S gas at 28 degrees C.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Neeraj Kumar, Jaykumar Jasani, Yogesh Sonvane, J. G. Korvink, Ashutosh Sharma, Bharat Sharma
Summary: The study developed unique nanoengineered bi-stacked layers based on 2D Pnictogens and graphene, amongst which hybrid Sb/G sensor showed excellent gas response towards H-2 with high selectivity and fast response times. The outstanding performance of Sb/G sensor positioned it as one of the highly selective and fast hydrogen sensors within the Pnictogen-graphene family.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Le Bich Hang Pham, Khanh Linh Chung, Seoyoung Kim, Jeeyeon Lee
Summary: In this study, we developed a dual-organelle-targeting probe called MPBA14+ with selective photosensitizing activity. Through live-cell imaging analysis, we found that MPBA14+ selectively localized in lipid droplets (LDs) and mitochondria, enabling monitoring of their interactions. Additionally, MPBA14+ was shown to induce a recently identified type of proinflammatory cell death called pyroptosis, mediated by mitochondrial dysfunction. The stable fluorescence emitted by MPBA14+ allowed for live-cell imaging analysis of changes in LDs, mitochondria, and peridroplet mitochondria (PDM) via photodynamic therapy (PDT).
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Hao Wu, Yangxi Zhang, Zhi-Zheng Wang, A. Ping Zhang
Summary: Infrared absorption-spectroscopy (IRAS) is a useful tool for identifying and characterizing molecular species. Plasmonic substrates have greatly enhanced the performance of IRAS technology for high-sensitivity biochemical detection, but their fabrication is still challenging and costly. This study presents a precision photoreduction and replacement reaction combined technology to directly print plasmonic substrates for PEIRAS biodetection. Experimental results show that the printed plasmonic substrate can detect bovine serum albumin at a concentration level of 10 nM, indicating its promising application in IRAS biodetection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Alba Calatayud-Sanchez, Sara Caicedo de la Arada, Yara Alvarez-Brana, Fernando Benito-Lopez, Lourdes Basabe-Desmonts
Summary: Understanding cell affinity is crucial for disease research, drug development, and cell biology studies. Existing techniques for measuring cell affinity are either expensive and complex, or indirect and time-consuming. This study presents a microfluidic device integrated with a cell-based biosensing platform to monitor cell affinity in real-time. The device successfully quantifies and differentiates the affinity of stem cells towards various molecules. It offers a self-contained, user-friendly, and single-use solution for quantifying cell affinity with multiple applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Guanghua Lei, Yuting Guan, Wanjun Long, Wei Lan, Zikang Hu, Xiuyun Bai, Yun Huang, Jian Yang, Hengye Chen, Haiyan Fu
Summary: In this study, a fluorescence nanosensing system was developed for the visual identification of Hangbaiju and the prediction of compounds content. The system showed high accuracy and was validated using various characterization methods and theory. The application of the random forest model on spectral and visual data further confirmed its effectiveness.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Rong Guo, Yongsheng Deng, Yinghao Jia, Caixin Shi, Wenpu Zhang, Ying Zhou, Xinghui Hou
Summary: This paper develops a simple and sensitive acetone sensor by introducing gallium (Ga) element into GCx porous structures. The addition of Ga inhibits grain growth and improves nanoparticle uniformity in GCx. The performance test shows that the GC4 sensor exhibits extremely high response to acetone at high temperature and has a relatively low detection limit.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Pei Miao, Bin Wang, Gengxiu Zheng, Wenshou Wang, Yanfeng Lv, Jing Zhang, Mei Yan
Summary: In this study, a novel photoelectrochemical biosensing platform based on MXene/BiVO4/Bi2S3 was developed for the accurate detection of NSCLC-related miRNA486-5p. The platform showed high sensitivity and accuracy, making it a promising tool for the detection of low-concentration biomolecules.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Qian Xia, Cuiping Gu, Xingxing Xie, Haibo Ren, Sang Woo Joo, Jiarui Huang
Summary: In this study, Sn-doped Fe2O3 microflowers were synthesized and used as sensing materials for acetone sensors. The microflowers exhibited good selectivity, high sensitivity, and stability for acetone vapor detection, with enhanced adsorption of acetone molecules.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Automation & Control Systems
Haifei Peng, Jian Long, Cheng Huang, Shibo Wei, Zhencheng Ye
Summary: This paper proposes a novel multi-modal hybrid modeling strategy (GMVAE-STA) that can effectively extract deep multi-modal representations and complex spatial and temporal relationships, and applies it to industrial process prediction.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2024)
