Photo-Fabrication of Titania Hybrid Films with Tunable Hierarchical Structures and Stimuli-Responsive Properties

2010 ◽  
Vol 22 (30) ◽  
pp. 3303-3306 ◽  
Author(s):  
Masahide Takahashi ◽  
Masafumi Inoue ◽  
Rie Ihara ◽  
Toshinobu Yoko ◽  
Takashi Nemoto ◽  
...  
RSC Advances ◽  
2014 ◽  
Vol 4 (80) ◽  
pp. 42747-42750 ◽  
Author(s):  
Sankarapillai Mahesh ◽  
Dawn Raju ◽  
A. S. Arathi ◽  
Kuruvilla Joseph

Photoswitchable nanomaterials by the controlled self-assembly of molecules derived from renewable sources has become a major area of interest for scientists across the world. Here the authors report the formation of stimuli responsive hierarchical structures from bioresources with controlled morphological features.


2010 ◽  
Vol 636-637 ◽  
pp. 3-8 ◽  
Author(s):  
João F. Mano

Surfaces and biointerfaces are recurrent when materials are used in bio-related applications. Bio-inspired concepts have been implemented in this field and gained increasing interest. In this context, stimuli-responsive surfaces have found applicability in a variety of subjects, including switchable surfaces to control protein immobilization or cell adhesion, porous membranes for controlled drug delivery applications, substrates and scaffolds for tissue engineering applications, biosensors, or membranes for bioseparation. Moreover, self-assembly strategies and hierarchical structures often found in Nature could inspire scientist and engineers to propose new solutions in the design and fabrication of surfaces with special features, such as wettability within extreme ranges, improved adhesion, optical and mechanical properties and specific bioactivity. In this work some aspects related to the use of stimuli-responsive and biomimetic surfaces in the field of biomedicine and biotechnology are highlighted and some examples are presented.


2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Yasuaki Tokudome ◽  
Kazumasa Suzuki ◽  
Takuya Kitanaga ◽  
Masahide Takahashi

2016 ◽  
Vol 301 (12) ◽  
pp. 1537-1547 ◽  
Author(s):  
Giuseppe Cirillo ◽  
Manuela Curcio ◽  
Orazio Vittorio ◽  
Umile Gianfranco Spizzirri ◽  
Fiore Pasquale Nicoletta ◽  
...  

2014 ◽  
Vol 24 (33) ◽  
pp. 5284-5290 ◽  
Author(s):  
Naibo Lin ◽  
Fan Hu ◽  
Yilin Sun ◽  
Chenxu Wu ◽  
Hongyao Xu ◽  
...  

Author(s):  
E. Baer

The most advanced macromolecular materials are found in plants and animals, and certainly the connective tissues in mammals are amongst the most advanced macromolecular composites known to mankind. The efficient use of collagen, a fibrous protein, in the design of both soft and hard connective tissues is worthy of comment. Very crudely, in bone collagen serves as a highly efficient binder for the inorganic hydroxyappatite which stiffens the structure. The interactions between the organic fiber of collagen and the inorganic material seem to occur at the nano (scale) level of organization. Epitatic crystallization of the inorganic phase on the fibers has been reported to give a highly anisotropic, stress responsive, structure. Soft connective tissues also have sophisticated oriented hierarchical structures. The collagen fibers are “glued” together by a highly hydrated gel-like proteoglycan matrix. One of the simplest structures of this type is tendon which functions primarily in uniaxial tension as a reinforced elastomeric cable between muscle and bone.


Author(s):  
M. Sarikaya ◽  
J. T. Staley ◽  
I. A. Aksay

Biomimetics is an area of research in which the analysis of structures and functions of natural materials provide a source of inspiration for design and processing concepts for novel synthetic materials. Through biomimetics, it may be possible to establish structural control on a continuous length scale, resulting in superior structures able to withstand the requirements placed upon advanced materials. It is well recognized that biological systems efficiently produce complex and hierarchical structures on the molecular, micrometer, and macro scales with unique properties, and with greater structural control than is possible with synthetic materials. The dynamism of these systems allows the collection and transport of constituents; the nucleation, configuration, and growth of new structures by self-assembly; and the repair and replacement of old and damaged components. These materials include all-organic components such as spider webs and insect cuticles (Fig. 1); inorganic-organic composites, such as seashells (Fig. 2) and bones; all-ceramic composites, such as sea urchin teeth, spines, and other skeletal units (Fig. 3); and inorganic ultrafine magnetic and semiconducting particles produced by bacteria and algae, respectively (Fig. 4).


Author(s):  
Siqi Wang ◽  
Yu Xiao ◽  
Yongjin Chen ◽  
Shang Peng ◽  
Dongyang Wang ◽  
...  

Hierarchical microstructures lead to high thermoelectric performance in Cum+nPb100SbmTe100Se2m (CLAST) through synergistically optimizing carrier and phonon transport.


2020 ◽  
Vol 11 (24) ◽  
pp. 3940-3950 ◽  
Author(s):  
Patrick Verkoyen ◽  
Holger Frey

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.


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