Templated Crystallization of Calcite on Patterned Self-Assembled Monolayers

2000 ◽  
Vol 620 ◽  
Author(s):  
Joanna Aizenberg
Keyword(s):  
Functional Groups ◽  
Crystallographic Orientation ◽  
Crystallization Process ◽  
Inorganic Materials ◽  
Fine Tuning ◽  
Self Assembled Monolayers ◽  
Experimental Conditions ◽  
Wide Range ◽  
Assembled Monolayers ◽  
Self Assembled

ABSTRACTMicropatterned self-assembled monolayers (SAMs) that serve as substrates for nucleation provide a way of controlling various aspects of the crystallization process with a previously unreachable precision. We focus on crystallization of calcite (CaCO3) on SAMs of HS(CH2)nX (X = CO2H, CH3, SO3H, OH, N(CH3)3Cl) supported on Ag and Au. Fine-tuning of the crystallographic orientation of the forming crystals has been achieved by using different functional groups and metal substrates. By patterning SAMs with microregions having different nucleating activities and proper geometry, it is possible to confine crystallization to well defined, spatially delineated sites. This method provides means to fabricate arbitrarily patterned calcitic arrays with controlled density of nucleation, crystallographic orientation, and crystal sizes. The experimental conditions and the mechanisms discussed can be applied to the templated nucleation of a wide range of inorganic materials.

scholarly journals Self-Assembled Monolayers for Dental Implants

2018 ◽  
Vol 2018 ◽  
pp. 1-21 ◽  
Author(s):  
Sidónio C. Freitas ◽  
Alejandra Correa-Uribe ◽  
M. Cristina L. Martins ◽  
Alejandro Pelaez-Vargas
Keyword(s):  
Dental Implants ◽  
Functional Groups ◽  
Complex Geometry ◽  
Self Assembled Monolayers ◽  
World Population ◽  
Research Strategies ◽  
Continuous Increase ◽  
Wide Range ◽  
Assembled Monolayers ◽  
Self Assembled

Implant-based therapy is a mature approach to recover the health conditions of patients affected by edentulism. Thousands of dental implants are placed each year since their introduction in the 80s. However, implantology faces challenges that require more research strategies such as new support therapies for a world population with a continuous increase of life expectancy, to control periodontal status and new bioactive surfaces for implants. The present review is focused on self-assembled monolayers (SAMs) for dental implant materials as a nanoscale-processing approach to modify titanium surfaces. SAMs represent an easy, accurate, and precise approach to modify surface properties. These are stable, well-defined, and well-organized organic structures that allow to control the chemical properties of the interface at the molecular scale. The ability to control the composition and properties of SAMs precisely through synthesis (i.e., the synthetic chemistry of organic compounds with a wide range of functional groups is well established and in general very simple, being commercially available), combined with the simple methods to pattern their functional groups on complex geometry appliances, makes them a good system for fundamental studies regarding the interaction between surfaces, proteins, and cells, as well as to engineering surfaces in order to develop new biomaterials.

Ordered self-assembled monolayers terminated with different chemical functional groups direct neural stem cell linage behaviours

2015 ◽  
Vol 11 (1) ◽  
pp. 014107 ◽  
Author(s):  
Shenglian Yao ◽  
Xi Liu ◽  
Jin He ◽  
Xiumei Wang ◽  
Ying Wang ◽  
...  
Keyword(s):  
Stem Cell ◽  
Functional Groups ◽  
Neural Stem Cell ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Spectroscopic Fingerprints of Amine and Imide Functional Groups in Self-Assembled Monolayers

ChemPhysChem ◽  
2007 ◽  
Vol 8 (11) ◽  
pp. 1722-1726 ◽  
Author(s):  
Miguel Ruiz-Osés ◽  
Thorsten Kampen ◽  
Nora González-Lakunza ◽  
Iñaki Silanes ◽  
Philipp M. Schmidt-Weber ◽  
...  
Keyword(s):  
Functional Groups ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Tuning the surface potential of gold substrates arbitrarily with self-assembled monolayers with mixed functional groups

2009 ◽  
Vol 11 (29) ◽  
pp. 6199 ◽  
Author(s):  
Wei-Chun Lin ◽  
Szu-Hsian Lee ◽  
Manuel Karakachian ◽  
Bang-Ying Yu ◽  
Ying-Yu Chen ◽  
...  
Keyword(s):  
Functional Groups ◽  
Surface Potential ◽  
Self Assembled Monolayers ◽  
Gold Substrates ◽  
Assembled Monolayers ◽  
Self Assembled

In Situ Second Harmonic Generation Measurements of the Growth of Nonlinear Optical Ionically Self-Assembled Monolayers

2000 ◽  
Vol 660 ◽  
Author(s):  
C. Brands ◽  
P.J. Neyman ◽  
M.T. Guzy ◽  
S. Shah ◽  
K.E. Van Cott ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Self Assembled Monolayers ◽  
Optical Polymer ◽  
Wide Range ◽  
Assembled Monolayers ◽  
Self Assembled

ABSTRACTIonically self-assembled monolayers (ISAMs) have recently been shown to spontaneously exhibit a polar ordering that gives rise to a substantial second order nonlinear optical (NLO) response. Here, the deposition of ISAMs has been studied in situ via second harmonic generation (SHG). We show that the adsorption and ordering of a noncentrosymmetric nonlinear optical polymer is constant over a wide range of concentrations. Upon immersion in the NLO-active polyelectrolyte solution, the SHG rises sharply over the first minute. Immersion in the NLO-inactive partner polyelectrolyte leads to a reduction in the SHG signal. Furthermore, when the film is removed from the NLO-active solution and allowed to dry, the SHG increases rapidly as the water evaporates. These studies provide greater understanding of the processes by which noncentrosymmetric order is formed in ISAM films and allows design of improved self- assembled nonlinear optical materials.

Effects of different functional groups on metastatic behavior of SPC-A-1/human lung cancer cells in self-assembled monolayers

RSC Advances ◽  
2015 ◽  
Vol 5 (52) ◽  
pp. 41412-41419 ◽  
Author(s):  
Guan Zheng ◽  
Lihua Li ◽  
Mei Li ◽  
Xinglong Feng ◽  
Xiaobing Pu ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Cancer Cells ◽  
Functional Groups ◽  
Human Lung ◽  
Lung Cancer Cells ◽  
Human Lung Cancer ◽  
Self Assembled Monolayers ◽  
Human Lung Cancer Cells ◽  
Assembled Monolayers ◽  
Self Assembled

Self-assembled monolayers terminated with different functional groups were used to explore their effects on the metastatic behaviors of human lung cancer cells (SPC-A-1) in vitro. The addition of –SH group has potential applications for lung cancer metastasis therapy.

The nature of interfacial binding of imidazole and carbene ligands with M20 nanoclusters (M = Au, Ag and Cu) – a theoretical study

RSC Advances ◽  
2015 ◽  
Vol 5 (108) ◽  
pp. 88625-88635 ◽  
Author(s):  
K. R. Geethalakshmi ◽  
Xia Yang ◽  
Qiao Sun ◽  
T. Y. Ng ◽  
D. Wang
Keyword(s):  
Metal Nanoparticles ◽  
Functional Groups ◽  
Theoretical Study ◽  
Self Assembled Monolayers ◽  
Carbene Ligands ◽  
Fundamental Understanding ◽  
Assembled Monolayers ◽  
Self Assembled

To inspire more exciting developments in the design and advances of self-assembled monolayers (SAMs), the fundamental understanding of the nature of interaction between metal nanoparticles and certain functional groups is very crucial.

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