Results 41 to 50 of about 2,391 (228)

Mechanically Regulated Nanozymes for Remote Metabolic Reprogramming and Precise Cancer Therapy

Angewandte Chemie, EarlyView.
Inspired by mechanoenzymes, a ferrocene‐based mechanically regulated nanozyme converts acoustic shear force into enhanced peroxidase‐like activity by decreasing electron density and alleviating steric hindrance at the Fe active sites, thereby rewiring redox homeostasis. Leveraging this remote regulatory mechanism, a multienzyme‐regulated nanoreactor is
Fangman Chen, Xiaochun Xie, Hanyao Huang, Ka Hong Wong, Jiying Liu, Hui Fang, Shaowen Wang, Jianfang Cao, Yu Tao, Mingqiang Li, Chao Yang, Wen Sun, Dan Shao, Yunlu Dai   +13 more
wiley   +2 more sources

Exploring an Alternative to mRNA Vaccine Cold Chain Storage: MRNA‐Lipid Nanoparticle Stability When Dried in a Polymer Matrix

Advanced Functional Materials, EarlyView.
The nanostructure, size, and function of mRNA‐loaded lipid nanoparticles are evaluated before drying, within polymer microneedles, and after rehydration. The results reveal the polymer and LNP loadings required to recover nanostructure and preserve the delivery performance in dry‐state formulations.
Brendan P. Dyett, Shahad K. Alsaiari, John L. Daristotle, Timothy A. Forster, Alicia Lau, Dhruv Varshney, Rania Afaneh, Andrew R. Hanna, Charles Sloane, David Mankus, Haitao Yu, Jiali Zhai, DongSoo Yun, Lisa H. Tostanoski, Abigail Lytton‐Jean, Dan H. Barouch, Charlotte E. Conn, Robert Langer, Ana Jaklenec, Calum J. Drummond   +19 more
wiley   +1 more source

MODELING ELECTROMAGNETIC NANOSTRUCTURES AND EXPERIMENTING WITH NANOELECTRIC ELEMENTS TO FORM PERIODIC STRUCTURES

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2020
We discuss the numerical modeling of electromagnetic, carbon-based periodic structures, including graphene, graphane, graphite, and graphyne. The materials are suitable for sub-micron sensors, electric lines, and other applications, such as those within ...
Miloslav Steinbauer, Roman Pernica, Jiri Zukal, Radim Kadlec, Tibor Bachorec, Pavel Fiala   +5 more
doaj   +1 more source

Nanoengineered Binetworks in Multifunctional Anionic Block Polymer Mesoblends for Improved Mechanical Properties

Advanced Functional Materials, EarlyView.
Mesoblends consist of a nanostructured polymer into which a second polymer is imbibed with a selective solvent. In this work, a solvent‐templatable pentablock terpolymer possessing a sulfonated midblock is modified with a hydrophilic polymer that is photocrosslinked in situ, yielding a hierarchical binetwork.
Kacie M. Wells, Ivan Kuzmenko, Reza A. Ghiladi, Richard J. Spontak   +3 more
wiley   +1 more source

Modelling of Nanostructural Processes in Ore Materials and Peloids

, 2016
С использованием коллоидно-химических и биоколлоидных методов, а также методов физико-химической геомеханики выполнено моделирование механо- и нанохимических трансформаций в полиминеральных железооксидносиликатных рудных материалах (ЖСРМ) и в их ...
Ковзун, И.Г., Никипелова, Е.М., Олейник, В.А., Панько, А.В., Цыганович, Е.А., Прокопенко, В.А.   +5 more
core   +2 more sources

The mechanism of recrystallization of carbon steels

Литьë и металлургия
A nanostructural mechanism for recrystallization of carbon steels has been developed. First, structure‑forming nanocrystals of austenite, ferrite and cementite are formed from elementary nanocrystals of iron and graphite, free iron and carbon atoms.
E. I. Marukovich, V. Yu. Stetsenko, A. V. Stetsenko   +2 more
doaj   +1 more source

Nanoscale modifications in the early heating stages of bone are heterogeneous at the microstructural scale. [PDF]

PLoS ONE, 2017
Nanoscale studies of bone provide key indicators to evidence subtle structural changes that may occur in the biomedical, forensic and archaeological contexts.
Aurélien Gourrier, Céline Chadefaux, Estelle Lemaitre, Ludovic Bellot-Gurlet, Michael Reynolds, Manfred Burghammer, Marie Plazanet, Georges Boivin, Delphine Farlay, Oliver Bunk, Ina Reiche   +10 more
doaj   +1 more source

Systematic numerical investigation of the role of hierarchy in heterogeneous bio-inspired materials [PDF]

, 2012
It is well known that hierarchical structure is an important feature in biological materials to optimise various properties, including mechanical ones. It is however still unclear how these hierarchical architectures can improve material characteristics,
Bosia, F., Pugno, Nicola M., Della Croce, F., F. Bosia, N. M. Pugno, Della Croce, Federico, DELLA CROCE DI DOJOLA, Federico, Pugno, N.M., F. D. Croce, Bosia, Federico, Pugno, Nicola   +10 more
core   +1 more source

Mechanically Programmable DNA Hydrogel Microparticles for 3D Cellular Systems

Advanced Materials, EarlyView.
DNA hydrogel microparticles are designed to exhibit controllable viscoelasticity and stiffness across three orders of magnitude from 30Pa$30 \,\mathrm{Pa}$ to 6.5kPa$6.5 \,\mathrm{kPa}$. They are uptaken into fibroblast spheroids where they are actively remodeled by cellular forces depending on their mechanical properties.
Tobias Walther, Eleni Dalaka, Gotthold Fläschner, Manuel Gómez‐González, Ilia Platzman, Sadaf Pashapour, Michelle Emmert, Pere Roca‐Cusachs, Xavier Trepat, Kerstin Göpfrich   +9 more
wiley   +1 more source

The mechanism of recrystallization of binary aluminum and tin bronzes

Литьë и металлургия
A nanostructural mechanism for recrystallization of binary aluminum and tin bronzes has been developed. First, structure-forming nanocrystals of α-phases, β-phases and γ-phases are formed from elementary nanocrystals of copper, aluminum, tin and their ...
E. I. Marukovich, V. Yu. Stetsenko, A. V. Stetsenko   +2 more
doaj   +1 more source