All-in-one Type ESIPT-Active Multi-Stimuli Responsive 7-Diethylamino-4-hydroxycoumarin-Rhodamine B Hydrazone as Molecular Switches and Reversible Photochromic Features of Its Zinc Ensemble

2021 ◽  
Author(s):  
Moorthy Mathivanan ◽  
Balamurugan Tharmalingam ◽  
Ottoor Anitha ◽  
Chia-Her Lin ◽  
Viruthachalam Thiagarajan ◽  
...  
Keyword(s):  
Rhodamine B ◽  
Material Science ◽  
Molecular Switches ◽  
Multifunctional Materials ◽  
Stimuli Responsive ◽  
Active Materials ◽  
Fluorescent Materials

Multi-stimuli responsive fluorescent materials have vast applications in the field of chemistry, physics, and material science. Among the multifunctional materials, ESIPT-active materials have drawn prodigious attraction in recent years due...

scholarly journals Redox-triggered switching in three-dimensional covalent organic frameworks

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Chao Gao ◽  
Jian Li ◽  
Sheng Yin ◽  
Junliang Sun ◽  
Cheng Wang
Keyword(s):  
Solid State ◽  
Three Dimensional ◽  
Molecular Switches ◽  
Pore Channel ◽  
Pore Surface ◽  
Stimuli Responsive ◽  
Conversion Yield ◽  
Responsive Materials ◽  
Reversible Transformation ◽  
Internal Pore

Abstract The tuning of molecular switches in solid state toward stimuli-responsive materials has attracted more and more attention in recent years. Herein, we report a switchable three-dimensional covalent organic framework (3D COF), which can undergo a reversible transformation through a hydroquinone/quinone redox reaction while retaining the crystallinity and porosity. Our results clearly show that the switching process gradually happened through the COF framework, with an almost quantitative conversion yield. In addition, the redox-triggered transformation will form different functional groups on the pore surface and modify the shape of pore channel, which can result in tunable gas separation property. This study strongly demonstrates 3D COFs can provide robust platforms for efficient tuning of molecular switches in solid state. More importantly, switching of these moieties in 3D COFs can remarkably modify the internal pore environment, which will thus enable the resulting materials with interesting stimuli-responsive properties.

A multi stimuli responsive material with rhodamine B and carbazole groups

2019 ◽  
Vol 43 (10) ◽  
pp. 4181-4187 ◽  
Author(s):  
Xiaoju Wang ◽  
Lixia Guo ◽  
Liheng Feng
Keyword(s):  
Rhodamine B ◽  
Stimuli Responsive

A facile material with multi stimuli responsive behaviors was developed. The chromic properties of the material can be observed by stimulating it with light, electricity and ions.

Triphenylamine-based stimuli-responsive solid state fluorescent materials

2020 ◽  
Vol 44 (21) ◽  
pp. 8680-8696 ◽  
Author(s):  
Parthsarathy Gayathri ◽  
Mehboobali Pannipara ◽  
Abdullah G. Al-Sehemi ◽  
Savarimuthu Philip Anthony
Keyword(s):  
Solid State ◽  
Molecular Engineering ◽  
Stimuli Responsive ◽  
Fluorescent Materials

Molecular engineering of triphenylamine (TPA) units produced multi-stimuli-responsive solid state fluorescent materials.

Synthesis and self-assembly of photoacid-containing block copolymers based on 1-naphthol

2019 ◽  
Vol 10 (41) ◽  
pp. 5602-5616 ◽  
Author(s):  
Felix Wendler ◽  
Jessica C. Tom ◽  
Felix H. Schacher
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Molecular Switches ◽  
Amphiphilic Block Copolymers ◽  
Strong Increase ◽  
Stimuli Responsive ◽  
Responsive Materials

Photoacids experience a strong increase in acidity when absorbing light and, hence, can be considered as molecular switches. The incorporation into amphiphilic block copolymers leads to novel stimuli-responsive materials with great potential.

Cutting the Cord: Progress in Untethered Soft Robotics and Actuators

MRS Advances ◽  
2019 ◽  
Vol 4 (51-52) ◽  
pp. 2787-2804 ◽  
Author(s):  
Meng Li ◽  
Nicholas A Ostrovsky-Snider ◽  
Metin Sitti ◽  
Fiorenzo G Omenetto
Keyword(s):  
Real World ◽  
Material Science ◽  
Degrees Of Freedom ◽  
Research Interest ◽  
Soft Robotics ◽  
Stimuli Responsive ◽  
New Materials ◽  
Real World Applications ◽  
Soft Actuators ◽  
Rigid Skeleton

AbstractIn recent decades, increasing research interest has shifted from traditional rigid skeleton robotics to flexible, shape-programmable, environmentally adaptive and stimuli-responsive “soft robotics”. Within this discipline, soft-robots capable of untethered and/or remote-controlled operation are of particular interest given their utility for actuation in complex situations with larger range of mobility and higher degrees of freedom. The use of new materials and the development of advanced fabrication techniques enable better performance and expand the utility of such soft actuators, moving them towards real-world applications. This review outlines some recent advances in untethered soft robotics and actuators to illustrate the promise of these applications at the interface of material science and device engineering.

scholarly journals Fluorescent materials-based information storage

2020 ◽  
Vol 4 (4) ◽  
pp. 1024-1039 ◽  
Author(s):  
Hu Wang ◽  
Xiaofan Ji ◽  
Zachariah A. Page ◽  
Jonathan L. Sessler
Keyword(s):  
Data Security ◽  
Recent Progress ◽  
Storage Systems ◽  
Information Storage ◽  
Stimuli Responsive ◽  
Fluorescent Materials

Fluorescent materials-based information storage systems are characterised by attractive data security, stability, and stimuli responsive features. We summarise here, recent progress in the area of fluorescent materials-based information storage codes.

Stepwise structural and fluorescent colour conversion in rhodamine analogues based on light and acid stimulations

2020 ◽  
Vol 8 (2) ◽  
pp. 543-549
Author(s):  
Masaru Tanioka ◽  
Shinichiro Kamino ◽  
Natsumi Koga ◽  
Daisuke Sawada
Keyword(s):  
Research And Development ◽  
Single Molecule ◽  
Material Science ◽  
Stimuli Responsive

The research and development of multi-stimuli, multi-responsive molecules have attracted considerable attention in chemistry, biology, and material science. Herein, we propose a multi-stimuli-responsive multi-fluorescence system in a single molecule.

Stimuli Responsive Nanoparticles for Controlled Anti-cancer Drug Release

2018 ◽  
Vol 25 (16) ◽  
pp. 1837-1866 ◽  
Author(s):  
Qi Tang ◽  
Bing Yu ◽  
Lilong Gao ◽  
Hailin Cong ◽  
Na Song ◽  
...  
Keyword(s):  
Side Effects ◽  
Drug Release ◽  
Cancer Chemotherapy ◽  
Material Science ◽  
Cancer Drug ◽  
Stimuli Responsive ◽  
The Past ◽  
Anti Cancer ◽  
Stimuli Response ◽  
Therapeutic Responses

Conventional drugs used for cancer chemotherapy have severe toxic side effects and show individually varied therapeutic responses. The convergence of nanotechnology, biology, material science and pharmacy offers a perspective strategy for cancer chemotherapy. Nanoparticles loaded with anti-cancer drug have been designed to overcome the limitations associated with conventional drugs, several nanomedicines have been approved by FDA and shown good performances in clinical practice. However, the therapeutic efficacies cannot be enhanced. Taking this into account, stimuli responsive nanoparticles present the ability to enhance therapeutic efficacy and reduce side effects. In this review, we systematically summarized the recent progresses of controlled anti-cancer drug release systems based on nanoparticles with different stimuli response including pH, temperature, light, redox and others. If the achievements of the past can be extrapolated into the future, it is highly likely that responsive nanoparticles with a wide array of desirable properties can be eventually developed for safe and efficient cancer therapy.

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.

Sign in / Sign up

Export Citation Format

Share Document