Azobenzene Crystal Polymorphism Enables Tuneable Photoinduced Deformation, Mechanical Behaviors and Photoluminescent Properties

2021 ◽  
Author(s):  
Yunhui Hao ◽  
Lei Gao ◽  
Xiunan Zhang ◽  
Rongli Wei ◽  
Ting Wang ◽  
...  
Keyword(s):  
Smart Materials ◽  
Molecular Crystals ◽  
Stimuli Responsive ◽  
Mechanical Behaviors ◽  
Crystal Polymorphism

Stimuli-responsive molecular crystals are fascinating for their potential as adaptive smart materials. However, achieving one crystal that could respond to multiple stimuli and perform multiple functionalities simultaneously is still challenging....

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.

scholarly journals Luminescent Supramolecular Nano- or Microstructures Formed in Aqueous Media by Amphiphile-Noble Metal Complexes

2020 ◽  
Vol 2020 ◽  
pp. 1-24 ◽  
Author(s):  
Carmen Cretu ◽  
Loredana Maiuolo ◽  
Domenico Lombardo ◽  
Elisabeta I. Szerb ◽  
Pietro Calandra
Keyword(s):  
Noble Metal ◽  
Smart Materials ◽  
Self Assembly ◽  
Noble Metals ◽  
Photophysical Properties ◽  
Aqueous Media ◽  
Molecular Architecture ◽  
Stimuli Responsive ◽  
Panoramic View ◽  
Amphiphilic Molecules

The involvement of metal ions within the self-assembly spontaneously occurring in surfactant-based systems gives additional and interesting features. The electronic states of the metal, together with the bonds that can be established with the organic amphiphilic counterpart, are the factors triggering new photophysical properties. Moreover, the availability of stimuli-responsive supramolecular amphiphile assemblies, able to disassemble in a back-process, provides reversible switching particularly useful in novel approaches and applications giving rise to truly smart materials. In particular, small amphiphiles with an inner distribution, within their molecular architecture, of various polar and apolar functional groups, can give a wide variety of interactions and therefore enriched self-assemblies. If it is joined with the opportune presence and localization of noble metals, whose chemical and photophysical properties are undiscussed, then very interesting materials can be obtained. In this minireview, the basic concepts on self-assembly of small amphiphilic molecules with noble metals are shown with particular reference to the photophysical properties aiming at furnishing to the reader a panoramic view of these exciting problematics. In this respect, the following will be shown: (i) the principles of self-assembly of amphiphiles that involve noble metals, (ii) examples of amphiphiles and amphiphile-noble metal systems as representatives of systems with enhanced photophysical properties, and (iii) final comments and perspectives with some examples of modern applications.

Self-assembly of dual-responsive amphiphilic POEGMA-b-P4VP-b-POEGMA triblock copolymers: Effect of temperature, pH, and complexation with Cu2+

2021 ◽  
Author(s):  
Daniela M. Zanata ◽  
Maria Isabel Felisberti
Keyword(s):  
Smart Materials ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Critical Micellar Concentration ◽  
Effect Of Temperature ◽  
Important Class ◽  
Stimuli Responsive ◽  
Dual Responsive

Amphiphilic and stimuli-responsive triblock copolymers are an important class of smart materials due to their low critical micellar concentration in solution and capacity of self-assembly into different structures depending on...

Template-induced nucleation for controlling crystal polymorphism: from molecular mechanisms to applications in pharmaceutical processing

CrystEngComm ◽  
2019 ◽  
Vol 21 (28) ◽  
pp. 4122-4135 ◽  
Author(s):  
Jose V. Parambil ◽  
Sendhil K. Poornachary ◽  
Jerry Y. Y. Heng ◽  
Reginald B. H. Tan
Keyword(s):  
Molecular Mechanisms ◽  
Molecular Crystals ◽  
Pharmaceutical Manufacturing ◽  
Crystal Nucleation ◽  
Crystal Polymorphism ◽  
Pharmaceutical Processing ◽  
Major Factors ◽  
Templating Effect

The major factors governing template-induced nucleation of molecular crystals are assessed, highlighting applications in pharmaceutical manufacturing and formulation processes where the templating effect is used to promote crystal nucleation and for controlling crystal polymorphism.

scholarly journals Stimuli-Responsive Graphene Nanohybrids for Biomedical Applications

2019 ◽  
Vol 2019 ◽  
pp. 1-18 ◽  
Author(s):  
Dinesh K. Patel ◽  
Yu-Ri Seo ◽  
Ki-Taek Lim
Keyword(s):  
Drug Delivery ◽  
Functional Groups ◽  
Hybrid Materials ◽  
Smart Materials ◽  
Biomedical Applications ◽  
Materials Science ◽  
High Surface ◽  
Single Layer ◽  
Stimuli Responsive ◽  
Physiochemical Properties

Stimuli-responsive materials, also known as smart materials, can change their structure and, consequently, original behavior in response to external or internal stimuli. This is due to the change in the interactions between the various functional groups. Graphene, which is a single layer of carbon atoms with a hexagonal morphology and has excellent physiochemical properties with a high surface area, is frequently used in materials science for various applications. Numerous surface functionalizations are possible for the graphene structure with different functional groups, which can be used to alter the properties of native materials. Graphene-based hybrids exhibit significant improvements in their native properties. Since functionalized graphene contains several reactive groups, the behavior of such hybrid materials can be easily tuned by changing the external conditions, which is very useful in biomedical applications. Enhanced cell proliferation and differentiation of stem cells was reported on the surfaces of graphene-based hybrids with negligible cytotoxicity. In addition, pH or light-induced drug delivery with a controlled release rate was observed for such nanohybrids. Besides, notable improvements in antimicrobial activity were observed for nanohybrids, which demonstrated their potential for biomedical applications. This review describes the physiochemical properties of graphene and graphene-based hybrid materials for stimuli-responsive drug delivery, tissue engineering, and antimicrobial applications.

scholarly journals Integrin-Targeting Peptides for the Design of Functional Cell-Responsive Biomaterials

Biomedicines ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 307 ◽  
Author(s):  
Junwei Zhao ◽  
Federica Santino ◽  
Daria Giacomini ◽  
Luca Gentilucci
Keyword(s):  
Cell Surface ◽  
Smart Materials ◽  
Drug Carrier ◽  
Peptide Ligands ◽  
Stimuli Responsive ◽  
Cellular Functions ◽  
Surface Receptors ◽  
Integrin Ligands ◽  
Carrier Systems ◽  
Drug Carrier Systems

Integrins are a family of cell surface receptors crucial to fundamental cellular functions such as adhesion, signaling, and viability, deeply involved in a variety of diseases, including the initiation and progression of cancer, of coronary, inflammatory, or autoimmune diseases. The natural ligands of integrins are glycoproteins expressed on the cell surface or proteins of the extracellular matrix. For this reason, short peptides or peptidomimetic sequences that reproduce the integrin-binding motives have attracted much attention as potential drugs. When challenged in clinical trials, these peptides/peptidomimetics let to contrasting and disappointing results. In the search for alternative utilizations, the integrin peptide ligands have been conjugated onto nanoparticles, materials, or drugs and drug carrier systems, for specific recognition or delivery of drugs to cells overexpressing the targeted integrins. Recent research in peptidic integrin ligands is exploring new opportunities, in particular for the design of nanostructured, micro-fabricated, cell-responsive, stimuli-responsive, smart materials.

Multi-stimuli responsive novel polyimide smart materials bearing triarylamine and naphthalimide groups

2019 ◽  
Vol 112 ◽  
pp. 291-300 ◽  
Author(s):  
Xu Zhang ◽  
Qingyi Lu ◽  
Caiyu Yang ◽  
Shuo Zhao ◽  
Ye Chen ◽  
...  
Keyword(s):  
Smart Materials ◽  
Stimuli Responsive

scholarly journals Template Synthesis for Stimuli-Responsive Angle Independent Structural Colored Smart Materials

2009 ◽  
Vol 34 (2) ◽  
pp. 333-337 ◽  
Author(s):  
Mohammad Harun-Ur-Rashid ◽  
Abu Bin Imran ◽  
Takahiro Seki ◽  
Yukikazu Takeoka ◽  
Masahiko Ishii ◽  
...  
Keyword(s):  
Template Synthesis ◽  
Smart Materials ◽  
Stimuli Responsive

Inspired smart materials with external stimuli responsive wettability: a review

RSC Advances ◽  
2016 ◽  
Vol 6 (43) ◽  
pp. 36623-36641 ◽  
Author(s):  
Fei Guo ◽  
Zhiguang Guo
Keyword(s):  
Smart Materials ◽  
Recent Progress ◽  
Stimuli Responsive ◽  
Smart Surfaces ◽  
External Stimuli

Recent progress in smart surfaces with responsive wettability upon external stimuli is reviewed and some of the barriers and potentially promising breakthroughs in this field are also briefly discussed.

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