Water-Soluble Multifunctional Cross-Conjugated Poly(p-phenylenes) as Stimuli-Responsive Materials:  Design, Synthesis, and Characterization

2007 ◽  
Vol 40 (17) ◽  
pp. 6057-6066 ◽  
Author(s):  
Hairong Li ◽  
Suresh Valiyaveettil
Keyword(s):  
Materials Design ◽  
Water Soluble ◽  
Synthesis And Characterization ◽  
Stimuli Responsive ◽  
Design Synthesis ◽  
Responsive Materials

Smart Polymers and their Applications: A Review

2017 ◽  
Vol 8 (03) ◽  
Author(s):  
Gore S. A. ◽  
Gholve S. B. ◽  
Savalsure S. M. ◽  
Ghodake K. B. ◽  
Bhusnure O. G. ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Water Soluble ◽  
Solution Temperature ◽  
Smart Polymers ◽  
Stimuli Responsive ◽  
Responsive Materials ◽  
Water Soluble Polymers ◽  
Commercial Applications ◽  
Stimuli Sensitive ◽  
External Stimuli

Smart polymers are materials that respond to small external stimuli. These are also referred as stimuli responsive materials or intelligent materials. Smart polymers that can exhibit stimuli-sensitive properties are becoming important in many commercial applications. These polymers can change shape, strength and pore size based on external factors such as temperature, pH and stress. The stimuli include salt, UV irradiation, temperature, pH, magnetic or electric field, ionic factors etc. Smart polymers are very promising applicants in drug delivery, tissue engineering, cell culture, gene carriers, textile engineering, oil recovery, radioactive wastage and protein purification. The study is focused on the entire features of smart polymers and their most recent and relevant applications. Water soluble polymers with tunable lower critical solution temperature (LCST) are of increasing interest for biological applications such as cell patterning, smart drug release, DNA sequencing etc.

Design, synthesis and characterization of a water-soluble β-sheet peptide

1995 ◽  
pp. 451-457 ◽  
Author(s):  
David S. Wishart ◽  
Les H. Kondejewski ◽  
Paul D. Semchuk ◽  
Cyril M. Kay ◽  
Robert S. Hodges ◽  
...  
Keyword(s):  
Water Soluble ◽  
Synthesis And Characterization ◽  
Design Synthesis ◽  
Β Sheet

Assessment of Water-Soluble π-Extended Squaraines as One- and Two-Photon Singlet Oxygen Photosensitizers:  Design, Synthesis, and Characterization

2008 ◽  
Vol 130 (6) ◽  
pp. 1894-1902 ◽  
Author(s):  
Luca Beverina ◽  
Maurizio Crippa ◽  
Mirko Landenna ◽  
Riccardo Ruffo ◽  
Patrizio Salice ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Water Soluble ◽  
Synthesis And Characterization ◽  
Design Synthesis ◽  
Two Photon

Polymer Metal-Organic Cage Gels Based on Cu24L24 Cuboctahedra: Design, Synthesis, and Additive Manufacturing Enabled by Three-State Photoswitching

2019 ◽  
Author(s):  
Nathan J. Oldenhuis ◽  
Peter Qin ◽  
Shu Wang ◽  
Hong-Zhou Ye ◽  
Eric Alt ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Chemical Properties ◽  
Polymer Gel ◽  
Stimuli Responsive ◽  
Design Synthesis ◽  
Responsive Materials ◽  
Switching Phenomenon ◽  
Material State ◽  
Polymer Metal ◽  
Metal Organic

This manuscript presents a novel polyMOC network that can reversibly switch between three distinct states of mechanical and chemical properties, significantly extending the boundaries of stimuli-responsive materials. This triple switching phenomenon is enabled by a unique photoreduction mechanism that leverages Cu<sub>24</sub>L<sub>24</sub> self-assembled metal-organic cages (MOCs) embedded in an elastic polymer gel. The properties of each material state can be used in a cooperative fashion to achieve advanced functions such as network toughening, metallic patterning, and additive manufacturing<br>

Sensitive Mechanocontrolled Luminescence in Cross-Linked Polymer Films

2019 ◽  
Author(s):  
Ayumu Karimata ◽  
Pradnya Patil ◽  
Eugene Khaskin ◽  
Sébastien Lapointe ◽  
robert fayzullin ◽  
...  
Keyword(s):  
Mechanical Stress ◽  
Polymer Films ◽  
Soft Matter ◽  
Small Strain ◽  
Visual Methods ◽  
Photoluminescence Intensity ◽  
Stimuli Responsive ◽  
Responsive Materials ◽  
Highly Sensitive ◽  
Mechanical Stretching

Direct translation of mechanical force into changes in chemical behavior on a molecular level has important implication not only for the fundamental understanding of mechanochemical processes, but also for the development of new stimuli-responsive materials. In particular, detection of mechanical stress in polymers via non-destructive methods is important in order to prevent material failure and to study the mechanical properties of soft matter. Herein, we report that highly sensitive changes in photoluminescence intensity can be observed in response to the mechanical stretching of cross-linked polymer films when using stable, (pyridinophane)Cu-based dynamic mechanophores. Upon stretching, the luminescence intensity increases in a fast and reversible manner even at small strain (< 50%) and applied stress (< 0.1 MPa) values. Such sensitivity is unprecedented when compared to previously reported systems based on organic mechanophores. The system also allows for the detection of weak mechanical stress by spectroscopic measurements or by direct visual methods.<br>

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