Results 41 to 50 of about 541,496 (304)

Hydrophilic Janus Micelles From an ABC Triblock Copolymer

Angewandte Chemie, EarlyView.
An amphiphilic triblock copolymer with poly(ethylene glycol) (PEG) and poly(N‐vinylpyrrolidone) (PVP) coronas self‐assembles into spherical micelles with Janus‐type surface segregation in water. Cryo‐TEM, enabled by selective PVP labeling, and 1H‐NOESY NMR reveal phase separation.
José Muñoz‐López, Lei Hu, Hui Wang, Xiaohe Tian, Lorena Ruiz‐Pérez, Giuseppe Battaglia   +5 more
wiley   +2 more sources

Progress in Research and Application of Insect-resistant Packaging for Grain Storage

Liang you shipin ke-ji
Stored grain is extremely vulnerable to the storage insects during storage and processing. At present, chemical control is still the main method for controlling stored grain insects.
ZHANG Yuan-quan, LV Jian-hua, BAI Chun-qi, HAN Zhi-qiang, GUO Ya-fei   +4 more
doaj   +1 more source

Identification of multiple odorant receptors essential for pyrethrum repellency in Drosophila melanogaster.

PLoS Genetics, 2021
Pyrethrum extract from dry flowers of Tanacetum cinerariifolium (formally Chrysanthemum cinerariifolium) has been used globally as a popular insect repellent against arthropod pests for thousands of years.
Qiang Wang, Peng Xu, Felipe Andreazza, Yahui Liu, Yoshiko Nomura, Phil Duran, Lan Jiang, Mengli Chen, Genki Takamatsu, Makoto Ihara, Kazuhiko Matsuda, Rufus Isaacs, Eugenio E Oliveira, Yuzhe Du, Ke Dong   +14 more
doaj   +1 more source

Evaluation of a Push-Pull Approach for Aedes aegypti (L.) Using a Novel Dispensing System for Spatial Repellents in the Laboratory and in a Semi-Field Environment.

PLoS ONE, 2015
The increase in insecticide resistant mosquito populations necessitates the exploration of novel vector control intervention measures. Push-pull strategies for insect control have been successful when used in integrated crop pest management.
Ulla Obermayr, Joachim Ruther, Ulrich R Bernier, Andreas Rose, Martin Geier   +4 more
doaj   +1 more source

Evaluation of the chemical defense fluids of Macrotermes carbonarius and Globitermes sulphureus as possible household repellents and insecticides

Scientific Reports, 2021
The use of chemical insecticides has had many adverse effects. This study reports a novel perspective on the application of insect-based compounds to repel and eradicate other insects in a controlled environment.
S. Appalasamy, M. H. Alia Diyana, N. Arumugam, J. G. Boon   +3 more
doaj   +1 more source

Characterizing Repellencies of Methyl Benzoate and Its Analogs against the Common Bed Bug, Cimex lectularius

Insects, 2022
Bed bug infestations are on the rise globally, and remediation efforts are becoming more expensive and difficult to achieve due to rising insecticide resistance in the pest populations.
Jaime Strickland, Nicholas R. Larson, Mark Feldlaufer, Aijun Zhang   +3 more
doaj   +1 more source

Vector diseases treatment based on intermediate complexion using textile substrates [PDF]

, 2019
The most efficient insect repellents are DEET (N, N-diethhyl-meta-toluamide) from synthetic origin and citronella essential oil from natural origin. However, there are other products that can also be used as insect repellents from synthetic origin, such ...
Lis Arias, Manuel José, Maesta Bezerra, Fabricio, Silva, Tais Larissa   +2 more
core   +1 more source

Terpenoid-Induced Feeding Deterrence and Antennal Response of Honey Bees [PDF]

, 2020
Multiple interacting stressors negatively affect the survival and productivity of managed honey bee colonies. Pesticides remain a primary concern for beekeepers, as even sublethal exposures can reduce bee immunocompetence, impair navigation, and reduce ...
Anderson, Troy D., Bernier, Ulrich R., Bloomquist, Jeffrey R., Larson, NIcholas R., O\u27Neal, Scott T.   +4 more
core   +1 more source

Plastron properties of a superhydrophobic surface [PDF]

, 2006
Most insects and spiders drown when submerged during flooding or tidal inundation, but some are able to survive and others can remain submerged indefinitely without harm.
Carole C. Perry, Ege R., F. Brian Pyatt, Glen McHale, Michael I. Newton, Neil J. Shirtcliffe, Rovner J. S., Thorpe W. H.   +7 more
core   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source