Oxazine mechanophore
WebSome mechanophores display a distinct optical (mechanochromic) response upon covalent bond scission, such as a colour change or a change of the photoluminescence properties. 5,8,10 Examples of such mechanophores that have been widely used for stress sensing in polymers include spiropyrans, 11–13 1,2-dioxetans, 14–17 diarylbibenzofuranones, … WebThis is particularly important for early reporting of damage and wear, for which the optical signal from the mechanophore should accurately reflect bulk bond scission. In this article, we develop and analyze a general theory for the quality of optical mechanoreporting by mechanophores in soft materials, based on the Bell‐Evans theory of bond ...
Oxazine mechanophore
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WebMaleimide–anthracene mechanophores located at the interface between poly (glycidyl methacrylate) (PGMA) polymer brushes and Si wafer surfaces were activated locally using atomic force microscopy (AFM) probes to deliver mechanical stimulation. WebMar 29, 2024 · A mechanophore scaffold based on the oxazine (OX) structural motif was developed to address the hysteretic or irreversible mechanochromism found in most bond …
WebWhen the mechanophore polymers are subjected to loads, the bonds between the chain are impacted and a color change reaction is triggered. Scientists utilized a new technique known as oxazine structure to achieve the reversible behavior of the material. WebOxazine and spirooxazine dyes (Fig. 12.1) are valuable photochromic materials that play an important role in many technologies [1-10].Recently, Mokhtari and coworkers [11] reported …
WebWe report the concept, mechanochemical dynamic therapy (MDT), that utilizes remote, ultrasound-triggered mechanophore activation to enable anticancer activities. We … WebMechanophores are molecular units that produce a physical or chemical response when an applied mechanical force brings about a structural rearrangement (such as a …
WebAbstract. Mechanophores (MPs) are a class of stimuli-responsive materials that are of increasing interest to engineers due to their potential applications as stress sensors. …
WebJun 8, 2024 · For example, the spiropyran mechanophore features a low-threshold force for activation (typically around 200 pN) 19,130,135, yet, only a small fraction of mechanochromophores present are activated ... tanf activitiesWebA fundamental understanding of not only how polymer topology may affect mechanophore activation in general but also the regiochemical application of force across the oxazine itself was explored. Stimuli-responsive materials is an area of significant research with a broad scope of applications in fields such as drug delivery, self-healing ... tanf adams county coloradoWebOct 29, 2024 · Mechanochromism, a color change induced by mechanical force, has attracted much attention in materials science, as it can be used to create stress- and … tanf adoption assistanceWebOxaprozin is also used to relieve pain, tenderness, swelling, and stiffness caused by juvenile rheumatoid arthritis in children 6 years of age and older. Oxaprozin is in a class of … tanf age limitWebMar 11, 2024 · A mechanophore scaffold based on the oxazine (OX) structural motif was developed to address the hysteretic or irreversible mechanochromism found in most … tanf agencyWebAbstract. To address hysteretic or irreversible mechanochromism found in most bond-scission-based mechanophores, we developed a new family of mechanophores based on … tanf administrationWebAbstract. Mechanophores (MPs) are a class of stimuli-responsive materials that are of increasing interest to engineers due to their potential applications as stress sensors. These mechanically responsive molecules change color or become fluorescent upon application of a mechanical stimulus as they undergo a chemical reaction when a load is applied. tanf activation