Journal of Molecular Liquids, Год журнала: 2024, Номер unknown, С. 126013 - 126013
Опубликована: Сен. 1, 2024
Язык: Английский
Chemical Society Reviews, Год журнала: 2024, Номер 53(8), С. 4045 - 4085
Опубликована: Янв. 1, 2024
Self-indicating polymers undergo detectable variations in response to stimuli. Important mechanisms of self-indication are aggregation, phase transition, covalent and non-covalent bond cleavage, isomerization, charge transfer, energy transfer.
Язык: Английский
Процитировано
37
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Янв. 8, 2025
Physical understanding and determination of different analytes without the need for advanced additional equipment are highly important, which can be achieved by using stimuli-induced chromic materials. chemical incorporation responsive chromophores into polymers results in fabrication polymers. Chromic electrospun nanofibers prepared electrospinning technique, their stimuli-responsivity is improved due to high surface-to-volume ratio. This Perspective focuses on recent studies developments nanofibers. Within this Perspective, these divided classes photochromic, thermochromic, electrochromic, mechanochromic, halochromic, solvatochromic, hydrochromic, ionochromic according stimuli they respond. In addition, preparation methods, compounds, conditions, response mechanisms, applications will discussed. The main such food packaging sensors, health monitoring anticounterfeiting materials, ink-free rewritable media, smart clothing. Several new strategies also proposed future studies. multiresponsive that combine properties a single system multifunctional merge stimuli-responsive with other functionalities considered future. aims assist researchers scientists development applications, including multimode sensors packaging, shape memory-assisted dual-mode encryption important data.
Язык: Английский
Процитировано
5
Chemical Society Reviews, Год журнала: 2023, Номер 52(10), С. 3470 - 3542
Опубликована: Янв. 1, 2023
CO 2 -responsive gels respond to exposure by either changing their properties or switching between gel and non-gel states.
Язык: Английский
Процитировано
39
Macromolecules, Год журнала: 2023, Номер 56(15), С. 5843 - 5853
Опубликована: Июль 21, 2023
Thermochromic polymers, as a highly applicable intelligent category of innovative materials, are capable changing their color with temperature variations. Different characteristics the matrix and specially its polarity can be influential factors in responsivity thermochromic polymers. In this study, polystyrene, poly(methyl methacrylate), poly(dimethylaminoethyl methacrylate) different polarities were synthesized via reverse atom transfer radical polymerization. polymers prepared by physical incorporation N-(rhodamine-B)lactam-ethylenediamine leuco dye HCl developer into three The effect on thermochromism fluorescence properties was investigated. changed from colorless to colored state increasing due intermolecular proton system. UV–vis spectroscopies used evaluate polymer systems, respectively, at temperatures. intensity absorption emission increases temperature, where has an opposite emission. change variation detectable naked eye for samples. addition, investigation fatigue resistance also response recovery times samples showed temperature-sensing ability These results that all have high coloration least 10 heating–cooling cycles. Biocompatible cellulosic papers fabricated, which irreversible temperatures removing solvent. Chromic labels thermal-induced chromism preservation taggants, indicate food materials kept right or wrong temperature. Therefore, they potential applications various fields, such sensors, condition taggant cosmetic, anticounterfeiting inks.
Язык: Английский
Процитировано
38
Journal of Mechatronics and Robotics, Год журнала: 2023, Номер 7(1), С. 1 - 14
Опубликована: Янв. 1, 2023
4D printing is a cutting-edge technology that allows for the creation of dynamic, self-assembling structures by utilizing cutting edge, newly introduced smart materials. It builds upon traditional 3D adding dimension time, allowing printed objects to change shape or behavior over time. This achieved through use materials, such as memory alloys polymers, which respond external stimuli heat moisture. These materials are engineered have specific properties can be triggered conditions temperature, humidity, light, other physical forces. enables adapt their environment and perform functions, in response temperature changes, self-assemble trigger. Overall, an exciting rapidly advancing has potential revolutionize way we design create structures. The ability time opens up new possibilities wide range applications. As continues evolve, expect see more innovative uses scientific fields architecture, aerospace, biomedical engineering demanding highly complex dynamic changing environments.
Язык: Английский
Процитировано
37
International Journal of Biological Macromolecules, Год журнала: 2024, Номер 261, С. 129901 - 129901
Опубликована: Фев. 3, 2024
Язык: Английский
Процитировано
15
Gels, Год журнала: 2024, Номер 10(8), С. 498 - 498
Опубликована: Июль 27, 2024
In recent years, many researchers have focused on designing hydrogels with specific functional groups that exhibit high affinity for various contaminants, such as heavy metals, organic pollutants, pathogens, or nutrients, environmental parameters. Novel approaches, including cross-linking strategies and the use of nanomaterials, been employed to enhance structural integrity performance desired hydrogels. The evolution these is further highlighted, an emphasis fine-tuning features, water absorption capacity, pollutant/factor sensing selectivity, recyclability. Furthermore, this review investigates emerging topic stimuli-responsive smart hydrogels, underscoring their potential in both sorption detection pollutants. By critically assessing a wide range studies, not only synthesizes existing knowledge, but also identifies advantages limitations, describes future research directions field chemically engineered purification monitoring low impact important resource chemists multidisciplinary researchers, leading improvements sustainable management technology.
Язык: Английский
Процитировано
13
Polymer-Plastics Technology and Materials, Год журнала: 2024, Номер 64(4), С. 397 - 438
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
11
European Polymer Journal, Год журнала: 2024, Номер 210, С. 112942 - 112942
Опубликована: Март 15, 2024
Язык: Английский
Процитировано
10
ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 16(1), С. 1605 - 1615
Опубликована: Дек. 27, 2023
An environmentally friendly smart ink was developed by incorporating fluorescein into functionalized poly(methyl methacrylate) (PMMA) nanoparticles synthesized using an emulsifier-free emulsion copolymerization approach. The functional comonomers of 2-(dimethylamino)ethyl methacrylate (DMAEMA), acrylamide, hydroxyethyl methacrylate, and glycidyl in 10 wt % with respect to methyl were used obtain the colloidal PMMA nanoparticles. Functional groups latex characterized Fourier-transform infrared spectroscopy. Field emission scanning electron microscopy results showed that all have nearly spherical morphologies variations size surface smoothness due presence different comonomers. Ultraviolet–visible fluorescence spectra indicated fluorescein-doped containing DMAEMA comonomer had highest absorbance intensity. In alkaline media, turns a dianion, showing red shift increased UV–vis addition, inductive characteristics tertiary amine result enhancing conjugation molecules increasing intensities. Therefore, formulation applications securing documents fingerprints, encrypting banknotes money, detecting latent crafting anticounterfeiting paper, eventually providing optical detection indication scratches.
Язык: Английский
Процитировано
19