scholarly journals A multi-stimuli responsive switch as a fluorescent molecular analogue of transistors

2016 ◽  
Vol 7 (3) ◽  
pp. 1819-1825 ◽  
Author(s):  
Iluminada Gallardo ◽  
Gonzalo Guirado ◽  
Jordi Hernando ◽  
Sandy Morais ◽  
Gemma Prats
Keyword(s):  
Molecular Switch ◽  
Stimuli Responsive

A redox-interconverting molecular switch is reported that enables continuous thermal amplification of its fluorescence, thus mimicking the response of transistors.

Photo- and electro-chromic organometallics with dithienylethene (DTE) linker, L2CpM-DTE-MCpL2: Dually stimuli-responsive molecular switch

2011 ◽  
Vol 40 (40) ◽  
pp. 10643 ◽  
Author(s):  
Keiko Motoyama ◽  
Huifang Li ◽  
Takashi Koike ◽  
Makoto Hatakeyama ◽  
Satoshi Yokojima ◽  
...  
Keyword(s):  
Molecular Switch ◽  
Stimuli Responsive

Dinuclear ruthenium acetylide complexes with diethynylated anthrahydroquinone and anthraquinone frameworks: a multi-stimuli-responsive organometallic switch

2019 ◽  
Vol 48 (21) ◽  
pp. 7432-7441
Author(s):  
Yousuke Oyama ◽  
Reo Kawano ◽  
Yuya Tanaka ◽  
Munetaka Akita
Keyword(s):  
Molecular Switch ◽  
Stimuli Responsive ◽  
Dinuclear Ruthenium

The organometallic AcAHQ/AQ-Ru system turns out to be an effective redox and pH stimuli triggered bimodal molecular switch.

A methyl ketone bridged molecule as a multi-stimuli-responsive color switch for electrochromic devices

2016 ◽  
Vol 4 (21) ◽  
pp. 4662-4667 ◽  
Author(s):  
Yu-Mo Zhang ◽  
Fuli Xie ◽  
Wen Li ◽  
Yuyang Wang ◽  
Weiran Zhang ◽  
...  
Keyword(s):  
Near Infrared ◽  
Methyl Ketone ◽  
Molecular Switch ◽  
Electrochromic Device ◽  
Stimuli Responsive ◽  
Electrochromic Devices

A new multi-stimuli-responsive molecular switch M5 with a methyl ketone bridge has been developed to fabricate a visible-near infrared absorbing electrochromic device.

Solvatochromic, thermochromic and pH-sensory DCDHF-hydrazone molecular switch: response to alkaline analytes

RSC Advances ◽  
2016 ◽  
Vol 6 (104) ◽  
pp. 102296-102305 ◽  
Author(s):  
Tawfik A. Khattab ◽  
Brylee David B. Tiu ◽  
Sonya Adas ◽  
Scott D. Bunge ◽  
Rigoberto C. Advincula
Keyword(s):  
Molecular Switches ◽  
Molecular Switch ◽  
Stimuli Responsive

Nanostructures fabricated from multi-stimuli responsive DCDHF-hydrazone molecular switches to function as colorimetric reversible gas probes.

A Multi-Stimuli-Responsive Oxazine Molecular Switch: A Strategy for the Design of Electrochromic Materials

2018 ◽  
Vol 13 (9) ◽  
pp. 1206-1212 ◽  
Author(s):  
Xiaojun Wang ◽  
Chang Gu ◽  
Hongzhi Zheng ◽  
Yu-Mo Zhang ◽  
Sean Xiao-An Zhang
Keyword(s):  
Molecular Switch ◽  
Stimuli Responsive ◽  
Electrochromic Materials

scholarly journals Exploring the pH-dependent kinetics, thermodynamics and photochemistry of a flavylium-based pseudorotaxane

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Rita Anastácio ◽  
André Seco ◽  
Pedro Mateus ◽  
A. Jorge Parola ◽  
Nuno Basílio
Keyword(s):  
Time Scales ◽  
Reaction Network ◽  
Molecular Switches ◽  
Molecular Switch ◽  
Stimuli Responsive ◽  
Ph Dependent ◽  
Molecular Components ◽  
Different Time Scales

Abstract Flavylium-based molecular switches are attractive molecular components to devise stimuli-responsive host-guest systems such as rotaxanes and pseudorotaxanes. These compounds display a pH-dependent reaction network of several species that reversibly interconvert within different time scales. Therefore, to explore and take profit of exceptional stimuli-responsive properties of these systems, detailed kinetic and thermodynamic characterizations are often required. In this work, we present the results of such characterization for a new flavylium compound decorated with a trimethylalkylammonium substituent designed to form a pseudorotaxane with cucurbit[7]uril (CB7). The formation of the pseudorotaxane was characterized in detail, and the thermodynamic and kinetic aspects of the flavylium interconversion reactions in the assembly were investigated and compared with the free molecular switch.

Amino-functional polyethers: versatile, stimuli-responsive polymers

2020 ◽  
Vol 11 (24) ◽  
pp. 3940-3950 ◽  
Author(s):  
Patrick Verkoyen ◽  
Holger Frey
Keyword(s):  
Ring Opening ◽  
Review Article ◽  
Stimuli Responsive ◽  
New Class ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers

Amino-functional polyethers have emerged as a new class of “smart”, i.e. pH- and thermoresponsive materials. This review article summarizes the synthesis and applications of these materials, obtained from ring-opening of suitable epoxide monomers.

4D printing technology, modern era: A short review

2020 ◽  
pp. 92-111
Author(s):  
Khodadad Mostakim ◽  
Nahid Imtiaz Masuk ◽  
Md. Rakib Hasan ◽  
Md. Shafikul Islam
Keyword(s):  
Smart Materials ◽  
Computer Aided Design ◽  
Short Review ◽  
Stimuli Responsive ◽  
4D Printing ◽  
Space Applications ◽  
Printing Technology ◽  
Practical Applications ◽  
Biomedical Technologies ◽  
Novel Material

The advancement in 3D printing has led to the rapid growth of 4D printing technology. Adding time, as the fourth dimension, this technology ushered the potential of a massive evolution in fields of biomedical technologies, space applications, deployable structures, manufacturing industries, and so forth. This technology performs ingenious design, using smart materials to create advanced forms of the 3-D printed specimen. Improvements in Computer-aided design, additive manufacturing process, and material science engineering have ultimately favored the growth of 4-D printing innovation and revealed an effective method to gather complex 3-D structures. Contrast to all these developments, novel material is still a challenging sector. However, this short review illustrates the basic of 4D printing, summarizes the stimuli responsive materials properties, which have prominent role in the field of 4D technology. In addition, the practical applications are depicted and the potential prospect of this technology is put forward.

ALMS1 acts as a critical molecular switch that controls Insulin-stimulated glucose transport in adipocytes

2016 ◽  
Author(s):  
Cynthia Licona ◽  
Cathy Obringer ◽  
Harinda Rajapaksha ◽  
Helene Dollfus ◽  
Nikolai Petrovsky ◽  
...  
Keyword(s):  
Glucose Transport ◽  
Molecular Switch

Synthesis of Smart Mesoporous Materials

2003 ◽  
Vol 775 ◽  
Author(s):  
G.V.Rama Rao ◽  
Qiang Fu ◽  
Linnea K. Ista ◽  
Huifang Xu ◽  
S. Balamurugan ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Mesoporous Materials ◽  
Fluorescent Dyes ◽  
Thermo Gravimetric Analysis ◽  
Molecular Transport ◽  
Solute Diffusion ◽  
Gravimetric Analysis ◽  
Stimuli Responsive ◽  
Porous Network ◽  
Hybrid Mesoporous Materials

AbstractThis study details development of hybrid mesoporous materials in which molecular transport through mesopores can be precisely controlled and reversibly modulated. Mesoporous silica materials formed by surfactant templating were modified by surface initiated atom transfer radical polymerization of poly(N-isopropyl acrylamide) (PNIPAAm) a stimuli responsive polymer (SRP) within the porous network. Thermo gravimetric analysis and FTIR spectroscopy were used to confirm the presence of PNIPAAm on the silica surface. Nitrogen porosimetry, transmission electron microscopy and X-ray diffraction analyses confirmed that polymerization occurred uniformly within the porous network. Uptake and release of fluorescent dyes from the particles was monitored by spectrofluorimetry and scanning laser confocal microscopy. Results suggest that the presence of PNIPAAm, a SRP, in the porous network can be used to modulate the transport of aqueous solutes. At low temperature, (e.g., room temperature) the PNIPAAm is hydrated and extended and inhibits transport of analytes; at higher temperatures (e.g., 50°C) it is hydrophobic and is collapsed within the pore network, thus allowing solute diffusion into or out of the mesoporous silica. The transition form hydrophilic to hydrophobic state on polymer grafted mesoporous membranes was determined by contact angle measurements. This work has implications for the development of materials for the selective control of transport of molecular solutes in a variety of applications.

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