A bioelectronic tongue (B-ET) mimicking insect taste systems is developed for the real-time detection and discrimination of natural and artificial sweeteners. Here, a carbon nanotube field-effect transistor (CNT-FET) was hybridized with nanovesicles including the honeybee sugar taste receptor, gustatory receptor 1 of (AmGr1). This strategy allowed us to detect glucose, a major component of nectar, down to 100 fM in real time and identify sweet tastants from other tastants. It could also be utilized for the detection of glucose in dextrose tablet solutions. Importantly, we demonstrated the discrimination between natural and artificial sweeteners down to 10 pM even in real beverages such as decaffeinated coffee using our hybrid platform. In this respect, our B-ET mimicking insect taste systems can be a powerful tool for various applications such as food screening and basic studies on insect taste systems.
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http://dx.doi.org/10.1021/acssensors.2c01254 | DOI Listing |
J Exp Bot
March 2025
Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15 Bratislava 4, Slovak Republic.
As future crop production is threatened by the increasing incidence of insect pests caused by changing climate, it is crucial to focus on searching for alternative methods of insect pest management. This review summarizes the current knowledge on the effect of silicon (Si) on the incidence, growth, development, longevity, survival, feeding efficiency, and reproduction parameters of phloem sap feeding and chewing insects of plants. While Si may negatively impact the biological parameters of both insect guilds, the effect is generally more pronounced in chewing insects, and often varies under different cultivation conditions.
View Article and Find Full Text PDFInsects
February 2025
School of Life Sciences and Bio-Engineering, Nelson Mandela African Institution of Science and Technology, Arusha P.O. Box 447, Tanzania.
Production and consumption of vegetable crops has seen a sharp increase in the recent past owing to an increasing recognition of their nutraceutical benefits. In tandem, there has been unwarranted application of agrochemicals such as insecticides to enhance productivity and vegetable quality, at the cost of human health, and fundamental environmental and ecosystem functions and services. This study was conducted to evaluate the efficacy of neem and gliricidia botanical extracts in managing harmful insect pest populations in leaf mustard.
View Article and Find Full Text PDFPLoS One
February 2025
Department of Biological Sciences, Jaramogi Oginga Odinga University of Science and Technology (JOOUST), Bondo, Kenya.
Edible insects are a highly sustainable and nutritional food source despite their low consumption in many communities. This study evaluated consumer attitudes and perceptions on consumption of edible insects in western Kenya. Eight focus group discussions (FGDs) were conducted in four rural and four urban markets in Kisumu and Vihiga counties.
View Article and Find Full Text PDFSci Rep
February 2025
Department of Biology, Emory University, Atlanta, GA, 30322, USA.
Our sense of taste is critical for regulating food consumption. The fruit fly Drosophila represents a highly tractable model to investigate mechanisms of taste processing, but taste circuits beyond sensory neurons are largely unidentified. Here, we use a whole-brain connectome to investigate the organization of Drosophila taste circuits.
View Article and Find Full Text PDFBraz J Biol
February 2025
Universidade Estadual do Maranhão - UEMA, Departamento de Biologia - DBIO, São Luís, MA, Brasil.
The Melipona fasciculata popularly known as Tiúba, is a specie of stingless bee that is distributed in the north of Brazil, over-represented in Maranhão State. This bee is of great importance to stingless bees (SLB) beekeepers, as it produces a large quantity of honey with an excellent taste. The genetic diversity of the Tiúba populations was examined with molecular approach using the mitochondrial DNA (mtDNA) marker.
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