Article
Chemistry, Analytical
Kacie Kaile, Christian Fernandez, Anuradha Godavarty
Summary: Telemedicine has the potential to revolutionize diabetic wound care management, and a novel low-cost smartphone-based optical imaging device is being developed to provide physiological measurements of tissues. Ongoing efforts in imaging diabetic foot ulcers using this device show promise for remote wound monitoring.
Article
Energy & Fuels
David Krisztian, Ferenc Korsos, Gergely Havasi
Summary: For the first time, the transient, steady-state, and small perturbation photoconductance decay lifetime measurement methods have been successfully combined into a single system. These three modes of operation complement each other and improve the accuracy of each measurement by compensating for their individual limitations. The combination of these methods provides accurate carrier lifetime data and the sum of excess carrier mobilities, which is crucial for high injection levels in modern solar cells where existing mobility models exhibit significant differences.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Biochemical Research Methods
Lili Zhang, Ziyu Zhang, Yu Tian, Meihui Cui, Beibei Huang, Tao Luo, Shufang Zhang, Hanjie Wang
Summary: This study successfully constructed a smartphone immunoassay system based on hydrogel microspheres for rapid simultaneous detection of two mycotoxins, providing a universal rapid detection method for large-scale food security testing.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Huan Zhao, Xinghan Qiu, Enben Su, Li Huang, Yunfeng Zai, Yuan Liu, Hui Chen, Zunliang Wang, Zhu Chen, Song Li, Lian Jin, Yan Deng, Nongyue He
Summary: A time-resolved chemiluminescence assay was developed for detecting HbA1c and Hb, showing excellent repeatability and accuracy, demonstrating great potential for clinical application.
ANALYTICA CHIMICA ACTA
(2022)
Article
Biophysics
Sura A. Muhsin, Muthana Al-Amidie, Zhenyu Shen, Zahar Mlaji, Jiayu Liu, Amjed Abdullah, Majed El-Dweik, Shuping Zhang, Mahmoud Almasri
Summary: A microfluidic based biosensor was used for rapid and simultaneous detection of Salmonella, Legionella, and Escherichia coli O157:H7 in tap water and wastewater. The biosensor concentrated and detected bacteria at both low and high concentrations. The results showed that the biosensors could detect the three bacterial pathogens simultaneously with a detection limit of 3 bacterial cells/mL in 30-40 minutes.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Analytical
Elena Stawschenko, Tim Schaller, Benjamin Kern, Berit Bode, Frank Doerries, Kristina Kusche-Vihrog, Hartmut Gehring, Philipp Wegerich
Summary: This study aims to provide data on the accuracy of total hemoglobin concentration measurements in different clinical settings and devices. The results show that clinically relevant devices can accurately detect changes in total hemoglobin concentration within a relative difference of +/- 5%.
Article
Chemistry, Analytical
Zhipeng Fan, Yong Zhou, Haoyu Zhai, Qi Wang, Honghui He
Summary: This paper proposes a smartphone-based biosensor for accurately detecting human total hemoglobin concentration. The sensor utilizes the camera, memory, and computing power of the phone, reducing the cost. It also includes a highly integrated LED module and a specially designed phone fixture to minimize spatial errors and motion artifacts. Additionally, a new algorithm is embedded in the sensor to improve measurement accuracy.
Article
Chemistry, Analytical
Kamonchanok Phoonsawat, Ismail Agir, Wijitar Dungchai, Tugba Ozer, Charles S. Henry
Summary: This work presents a device that integrates a potentiometric ion-selective electrode with distance-based colorimetric detection for electrolyte analysis at home. The device showed potential applications in quantifying K+ and Cl- ions using low-cost instruments and short analysis time.
ANALYTICA CHIMICA ACTA
(2022)
Article
Multidisciplinary Sciences
Jihwan Kim, Youngdo Kim, Kyler J. Howard, Sang Joon Lee
Summary: In this study, a smartphone-based device was developed for real-time monitoring of suspended particulate matter (PM) using digital holographic microscopy (DHM) and deep learning algorithms. The device can rapidly measure the mass concentrations of different-sized PMs in water, and has the potential to contribute to the development of handheld devices for monitoring suspended pollutants in various media.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Analytical
Gerd Reis, Xiaoying Tan, Lea Kraft, Mehmet Yilmaz, Dominik Stephan Schoeb, Arkadiusz Miernik
Summary: The newly developed sensor is capable of monitoring hemoglobin concentration in the effluent of continuous bladder irrigation, detecting air bubbles robustly in the outflow tract, supporting the use of different irrigants, and showing positive results in clinical studies.
Article
Chemistry, Analytical
Wei Wang, Zihan Ye, Xing Ma, Jinhong Guo
Summary: The combination of upconversion nanoparticles and lateral flow assays, along with computer vision technology, enables the instantaneous quantitative detection of small molecule targets. The device provides accurate quantitative data for small molecule targets in a fast and portable manner.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Water Resources
Satyam Srivastava, Vinay Sharma
Summary: This manuscript presents an ultra-portable, rapid, cost-effective, and easy-to-use solution for onsite heavy metal concentration measurement in drinking water samples. The solution combines off-the-shelf available chemical kits for heavy metal detection and developed spectrometer-based readout for concentration prediction, quality judgment, and automatic data collection.
APPLIED WATER SCIENCE
(2021)
Article
Optics
Shiju Edappadikkunnummal, Rahul Chembra Vasudevan, Sruthy Dinesh, Sheenu Thomas, Narayana Rao Desai, Sharafudeen Kaniyarakkal
Summary: The paper presents a photonic crystal-based sensor for detecting hemoglobin concentration. The sensor utilizes the reflectance properties of the photonic crystal and demonstrates high efficiency and accuracy in detecting hemoglobin concentration. The dependence of sensor performance on the defect layer thickness is also analyzed.
Article
Instruments & Instrumentation
M. Scarpetta, M. Spadavecchia, G. Andria, M. A. Ragolia, N. Giaquinto
Summary: This paper presents a method using a smartphone to measure heartbeat and respiratory intervals simultaneously, with signal processing algorithms for accurate estimation. Metrological validation was conducted by comparing the results with measurements obtained using traditional instruments.
JOURNAL OF INSTRUMENTATION
(2022)
Article
Chemistry, Analytical
Jie Zhou, Hanjie Yang, Xufang Qu, Wenlong Wang, Cheng Yang, Chifang Peng, Yi Zhang
Summary: In this study, a photothermal-colorimetric dual mode immunochromatographic sensor was successfully developed for fast screening or accurate quantification of deoxynivalenol. By using black phosphorus-gold nanocomposite as the signal probe, both photothermal and colorimetric signals could be collected. This method exhibited ultra-high sensitivity and wide dynamic range for deoxynivalenol, showing good selectivity and recovery.
MICROCHEMICAL JOURNAL
(2023)
Article
Engineering, Chemical
Gregor D. Wehinger, Matteo Ambrosetti, Raffaele Cheula, Zhao-Bin Ding, Martin Isoz, Bjarne Kreitz, Kevin Kuhlmann, Martin Kutscherauer, Kaustav Niyogi, Jeroen Poissonnier, Romain Reocreux, Dominik Rudolf, Janika Wagner, Ronny Zimmermann, Mauro Bracconi, Hannsjoerg Freund, Ulrike Krewer
Summary: This paper reports the results of a perspective workshop discussing the current status and future needs for multiscale modeling in reaction engineering. The research topic is highly challenging and interdisciplinary in the chemical engineering community. The paper highlights recent achievements, challenges, and future needs in various areas such as reactors and cells, heterogeneous catalytic processes, and coupling first-principles kinetic models with CFD simulations.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)