Review
Fisheries
Juliette Schneider, Jean-Luc Imler
Summary: The fruitfly Drosophila melanogaster is a valuable model for studying innate immune mechanisms, especially in the context of viral infections. Research has uncovered the importance of RNA interference and inducible transcriptional responses in antiviral immunity in fruitflies. Recent discoveries of signaling pathways in fruitflies, such as the STING-IKK beta-Relish cassette, highlight the role of NF-kappa B transcription factors in controlling viral infections, in addition to bacterial and fungal infections.
DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
(2021)
Article
Biology
Marta Scalzotto, Renny Ng, Steeve Cruchet, Michael Saina, Jan Armida, Chih-Ying Su, Richard Benton
Summary: This study identifies hundreds of genes selectively enriched in either the odorant receptor or ionotropic receptor subsystems in the Drosophila melanogaster antennae. The study also reveals that neuronal genes other than sensory receptors are broadly expressed within the subsystems, while many non-neuronal genes show highly selective expression. Furthermore, a specific non-neuronal molecule called Osiris 8 is found to play a crucial role in high sensitivity responses to pheromone ligands in the olfactory subsystems.
Article
Biochemistry & Molecular Biology
Gouri Chopra, Shivam Kaushik, Pinky Kain
Summary: Nutrient-sensing mechanisms in animals play a critical role in regulating food intake and maintaining metabolic homeostasis. The gut, especially in fruit flies, is a useful tissue for studying these mechanisms due to its genetic tools and ability to transmit signals to the brain.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Multidisciplinary Sciences
Nirag Kadakia, Mahmut Demir, Brenden T. Michaelis, Brian D. DeAngelis, Matthew A. Reidenbach, Damon A. Clark, Thierry Emonet
Summary: Insects, such as fruit flies, navigate in odor plumes using the wind direction as a cue. However, recent research shows that fruit flies also use the direction of odor motion as an additional navigational cue, which they detect using temporal correlations in the odor signal between their two antennae. This finding suggests that odor-direction sensing may be a widespread phenomenon in the animal kingdom and could improve olfactory robot navigation in uncertain environments.
Article
Developmental Biology
Sebastian M. Bernasek, Suzy S. J. Hur, Nicolas Pelaez-Restrepo, Jean-Francois Boisclair Lachance, Rachael Bakker, Heliodoro Tejedor Navarro, Nicelio Sanchez-Luege, Luis A. N. Amaral, Neda Bagheri, Ilaria Rebay, Richard W. Carthew
Summary: By studying the expression dynamics of ETS transcription factors Pnt and Yan in Drosophila eye cells, we found that cell state transitions can be achieved by controlling the ratio of the two factors. A twofold increase in the Pnt/Yan ratio leads to transitions to photoreceptor fates. Genetic perturbations that disrupt the Pnt/Yan ratio slightly result in fate transition defects, indicating that transitions are normally driven by twofold changes in the ratio.
Review
Chemistry, Multidisciplinary
Veronica Montes-Garcia, Marco A. Squillaci, Marta Diez-Castellnou, Quy Khac Ong, Francesco Stellacci, Paolo Samori
Summary: Noble metal nanoparticles are ideal materials for sensor fabrication, enabling high sensitivity and selectivity, and can be used for environmental and health monitoring.
CHEMICAL SOCIETY REVIEWS
(2021)
Review
Polymer Science
Haizheng Li, Chunai Dai, Yuandu Hu
Summary: This article introduces the applications of hydrogels in chemical and biosensing, focusing on their characteristics as sensing materials and the different types of responsive hydrogels. Hydrogels have vast potential for applications in the biomedical field and wearable devices.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Camilla Baratto, Guido Faglia, Luca Carletti, Costantino De Angelis
Summary: This paper reviews the recent trends in optical resonant sensors involving plasmonic and geometrical resonances, which are activated by excitation with electromagnetic light of proper wavelength. Plasmonic hot electrons obtained by shining light on metal nanoparticle decorated metal oxides can bring new effects in physicochemical processes. Geometrical resonances play a role in Mie and Whispering Gallery Modes (WGM)-based sensing, including metasurfaces for optical detection of molecules and nonlinear effects in metamaterials.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Daoye Zheng, Yao Wen, Xiaocan Xu, Yu-Sheng Lin
Summary: We propose and demonstrate a metamaterial grating sensor composed of gold nanograting on a silver thin-film and encapsulated with a PDMS microfluidic chip. The sensor is sensitive to the wavevector of incident light and exhibits angle-dependent reflection spectra, with resonance peaks showing blue-shifts when isopropyl alcohol and deionized water solutions are injected. The reflected color also changes with different solutions in the ambient light environment.
MATERIALS TODAY PHYSICS
(2023)
Review
Physiology
Anuradha Ratnaparkhi, Jyothish Sudhakaran
Summary: Nutrient sensing and metabolic homeostasis are crucial for the growth, development, and reproduction of organisms. The brain receives and integrates signals related to nutritional and metabolic status to maintain homeostasis. In Drosophila, the fat body serves as a key organ for energy and nutrient sensing, storage, and utilization, and it regulates metabolism by modulating the synthesis and release of insulin-like peptides.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yecheng Wang, Shuwen Zhang, Yang Bai, Kun Jia, Zhigang Suo
Summary: This paper presents a chemical sensing method based on interfacial voltage, which measures the concentration of analytes by detecting the generated voltage at the interface. This design allows the sensor to be made of any electronic conductor, providing great flexibility. The feasibility of this method is demonstrated through experiments, including the development of a wearable chemical sensor and needle-shaped electrodes for testing soft biological tissues. Chemical sensing by interfacial voltage holds promise for the advancement of ubiquitous sensing technology.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Di Wang, Libin Qian, Fenni Zhang, Kyle Mallires, Vishal Varun Tipparaju, Jingjing Yu, Erica Forzani, Changku Jia, Qing Yang, Nongjian Tao, Xiaojun Xian
Summary: The study demonstrates a technology that can turn a CMOS imager into a multiplexed colorimetric sensing chip by coating micron-scale sensing spots on its surface. The sensitivity is enhanced by nanocomposites of colorimetric sensing probes and silica nanoparticles, allowing high-performance gas sensing even on small sensing spots. A smartphone accessory based on this chemical CMOS sensor has been developed, proving its compatibility with mobile electronics.
Article
Biology
G. Larisa Maier, Nikita Komarov, Felix Meyenhofer, Jae Young Kwon, Simon G. Sprecher
Summary: Despite the small number of gustatory sense neurons in Drosophila larvae, researchers found that neurons can be activated by different combinations of taste modalities, including opposite hedonic valence. They also identified distinct temporal dynamics of response and external sucrose sensing neurons in the larval external taste center, suggesting that external and internal gustation may use distinct and complementary mechanisms in sugar sensing.
Article
Chemistry, Analytical
Chao Bao, Seung Kwon Seol, Woo Soo Kim
Summary: A 3D integrated neuromorphic system for chemical sensing was proposed in this study, with components mimicking sensory receptors, neurons, and synapses in biological systems. The system was fabricated using 3D printing of multiple materials, resulting in improved volumetric efficiency. It demonstrated the capability of detecting and transmitting different ion concentrations for electrochemical neuromorphic sensing applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Electrical & Electronic
Abhishek Grover, Brejesh Lall
Summary: The research focuses on modeling the chemical sensing process, analyzing binding and unbinding reactions on the sensor surface, and studying fluctuations in sensor response. By formulating the binding and unbinding reactions as Bernoulli trials, a stochastic differential equation is derived and used to analyze the frequency spectrum of the sensor signal, demonstrating the potential value of the model in agent identification applications.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2021)
