Review
Biotechnology & Applied Microbiology
Wei Chen, Qingteng Lai, Yanke Zhang, Zhengchun Liu
Summary: The infection of Staphylococcus aureus and the spread of drug-resistant bacteria pose a serious global public health threat. Developing a fast, simple, low-cost, specific and sensitive detection method for S. aureus is of great significance. Aptasensors, as alternatives to traditional detection methods, have shown promising applications in S. aureus detection.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Polymer Science
Svetlana Sizova, Ruslan Shakurov, Tatiana Mitko, Fedor Shirshikov, Daria Solovyeva, Valery Konopsky, Elena Alieva, Dmitry Klinov, Julia Bespyatykh, Dmitry Basmanov
Summary: This study proposes quartz surface coatings for the efficient sorption and detection of biomolecules using a photonic crystal surface mode biosensor. The sorption and deposition of biomolecules are analyzed by monitoring changes in the propagation parameters of optical modes. The results indicate that dextran with a Mw of 500 kDa and anchor epoxy groups shows promising potential for protein detection in optical biosensors.
Review
Food Science & Technology
Yafang Shen, Lizhou Xu, Yanbin Li
Summary: This review provides a comprehensive overview of Salmonella biosensors, highlighting different signal-transducing mechanisms and recent trends, especially in combination with advanced technologies. Furthermore, current challenges and future prospects are emphasized.
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
(2021)
Article
Chemistry, Physical
G. Martinez-Saucedo, M. Ugalde-Reygadas, J. J. Alcantar Pena, G. Lastra-Medina, J. Marquez-Marin, G. Torres-Delgado, R. Castanedo-Perez, I. R. Chavez-Urbiola
Summary: The glucose sensitivity of a non-enzymatic sensor is affected by the thickness of the thin-film, which depends on the conductivity and roughness of the film. Copper oxide films grown by spray pyrolysis were used to study the effect of thin-film thickness. It was found that increasing the film thickness up to 434 nm improved the signal stability and sensitivity, but beyond that thickness, the sensitivity started to decrease gradually.
SURFACES AND INTERFACES
(2023)
Article
Biochemical Research Methods
Xiaoyi Li, Changxiang Fang, Zhihao Feng, Junying Li, Yan Li, Weihua Hu
Summary: In this study, a microarray chip specifically designed for OIRD was reported to improve its sensitivity by using a nanostructured fluorine-doped tin oxide (FTO) slide as the substrate. The sensitivity and signal-to-noise ratio of this microarray were significantly improved compared to chips printed on a conventional glass slide and pristine FTO. The enhanced sensitivity is not only due to the higher capture efficiency towards the target, but also benefits from the optical enhancement enabled by its unique nanostructured sensing interface.
Article
Chemistry, Physical
B. Chakraborty, R. Saha, S. Chattopadhyay, D. De, R. D. Das, M. K. Mukhopadhyay, M. Palit, C. RoyChaudhuri
Summary: The impact of surface defects in zinc oxide thin films on the performance of field effect transistor biosensors was studied, revealing a monotonic decrease in transconductance with increasing defect density but a non-monotonic behavior in antibody binding density. Optimization led to lower detection limits and higher sensitivity for the sensors, with the best performing sensor maintaining stability for 2 months.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Binbin Xin, Arnaud Le Febvrier, Lei Wang, Niclas Solin, Biplab Paul, Per Eklund
Summary: Highly pure CaxCoO2 thin films were successfully obtained through annealing multilayers, with excellent optical properties and the possibility to increase electrical conductivity by introducing a secondary phase. This study provides a new method for the preparation of solid-state oxide thin films.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Analytical
Dan Song, Wenjuan Xu, Rong Yang, Xiangzhi Han, Yuxin Zhuo, Jiayuan Liu, Feng Long
Summary: In this study, a reusable optical fiber chemiluminescent biosensor (ROFC) was developed for the rapid detection of pesticide atrazine (ATZ) and endocrine disruptor bisphenol A (BPA). The biosensor utilized a modified optical fiber as both a bio-probe and a chemiluminescence signal transmission element, enabling improved detection efficiency. The chemiluminescence signal was detected using a miniaturized ultrasensitive photodiode detector. The ROFC biosensor showed high sensitivity with short detection time and low detection limits for ATZ and BPA.
Article
Spectroscopy
Faten Bashar Kamal Eddin, Yap Wing Fen, Nur Alia Sheh Omar, Josephine Ying Chyi Liew, Wan Mohd Ebtisyam Mustaqim Mohd Daniyal
Summary: A SPR sensor based on chitosan-graphene quantum dots thin film has been developed for detecting dopamine concentrations in the range from 0 fM to 1 pM, showing high sensitivity and low detection limit. The sensor exhibits outstanding performance in dopamine detection, demonstrating high accuracy and potential for clinical diagnostic applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Review
Food Science & Technology
Yogesh Kumar, Kairam Narsaiah
Summary: The authentication of animal species is crucial, with polymerase chain reaction being the most sensitive method. However, it requires expensive equipment and labs. Recently, there is a demand for on-site detection methods and devices in low-resource settings, which must be affordable and efficient.
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
(2021)
Article
Materials Science, Multidisciplinary
Luobin Zhang, Jintao Wang, Sheng Zhou, Xiaojia Luo, Yufeng Li
Summary: This research applies silver thick-film metallization and soft soldering to achieve ultra-high vacuum packaging of atom chips with through silicon via (TSV). The packaging process is conducted in a vacuum environment to prevent oxidation of the copper layer on the chip. Tin foil is used to protect the inner wall of the glass cell from solder emissions. By using screen printing, sintered surface metallization, and soft soldering, the packaging of atom chips with TSV and a silica glass cell is successfully achieved, meeting the requirements of cold atom experiments.
Article
Engineering, Environmental
Fateme Fooladi Talari, Ali Bozorg, Farnoush Faridbod, Manouchehr Vossoughi
Summary: An optical apta-nanosensor based on rGQDs and MWCNTs was developed for the selective detection of diazinon, meeting specified standards with high sensitivity and accuracy in detecting and measuring diazinon in real samples.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Patricia Pereira-Silva, Diana Meira, Augusto Costa-Barbosa, Diogo Costa, Marco S. Rodrigues, Joel Borges, Ana Machado, Albano Cavaleiro, Paula Sampaio, Filipe Vaz
Summary: This study reports the development of an optical biosensor based on localized surface plasmon resonance (LSPR) and the use of plasmonic thin films containing Au nanoparticles as its platform. The efficiency and potential of the biosensor platform were demonstrated through post-deposition treatments and functionalization methods.
Article
Chemistry, Analytical
Roozbeh Abedini-Nassab, Ali Emamgholizadeh
Summary: Single-cell analysis is an emerging discipline that has shown a transformative impact in cell biology in the last decade. This paper introduces a new microfluidic platform for precise transport of magnetic particles in a tri-axial rotating magnetic field. Compared to rivals, this system offers several advantages, including prevention of cluster formation and highly parallel controlled particle transport. It also demonstrates appropriate transport of magnetic beads and magnetized living cells, as well as a pilot experiment with barcode-carrying magnetic beads.
Article
Chemistry, Analytical
Andrejs Ogurcovs, Kevon Kadiwala, Eriks Sledevskis, Marina Krasovska, Ilona Plaksenkova, Edgars Butanovs
Summary: Field-effect transistor-based biosensors have great potential for detecting various analytes with rapidity, high sensitivity, and high selectivity. In this study, a flexible biosensor based on an Al:ZnO thin-film transistor was fabricated, and techniques for establishing its operating range were demonstrated. Experimental results showed promise for application on temperature-sensitive substrates.