Preparation of nanoporous polyimide thin films via layer-by-layer self-assembly of cowpea mosaic virus and poly(amic acid)

2011 ◽  
Vol 519 (22) ◽  
pp. 7712-7716 ◽  
Author(s):  
Bo Peng ◽  
Guojun Wu ◽  
Yuan Lin ◽  
Qian Wang ◽  
Zhaohui Su
Keyword(s):  
Thin Films ◽  
Mosaic Virus ◽  
Self Assembly ◽  
Amic Acid ◽  
Layer By Layer ◽  
Cowpea Mosaic Virus

scholarly journals Carbon Nano-Onions Reinforced Multilayered Thin Film System for Stimuli-Responsive Drug Release

Pharmaceutics ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 1208
Author(s):  
Narsimha Mamidi ◽  
Ramiro Velasco Delgadillo ◽  
Aldo Gonzáles Ortiz ◽  
Enrique Barrera
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Drug Release ◽  
Self Assembly ◽  
Critical Role ◽  
Layer By Layer ◽  
Film System ◽  
Stimuli Responsive ◽  
Ph Responsive ◽  
Thin Film System

Herein, poly (N-(4-aminophenyl) methacrylamide))-carbon nano-onions (PAPMA-CNOs = f-CNOs) and anilinated-poly (ether ether ketone) (AN-PEEK) have synthesized, and AN-PEEK/f-CNOs composite thin films were primed via layer-by-layer (LbL) self-assembly for stimuli-responsive drug release. The obtained thin films exhibited pH-responsive drug release in a controlled manner; pH 4.5 = 99.2% and pH 6.5 = 59.3% of doxorubicin (DOX) release was observed over 15 days. Supramolecular π-π stacking interactions between f-CNOs and DOX played a critical role in controlling drug release from thin films. Cell viability was studied with human osteoblast cells and augmented viability was perceived. Moreover, the thin films presented 891.4 ± 8.2 MPa of the tensile strength (σult), 43.2 ± 1.1 GPa of Young’s modulus (E), and 164.5 ± 1.7 Jg−1 of toughness (K). Quantitative scrutiny revealed that the well-ordered aligned nanofibers provide critical interphase, and this could be responsible for augmented tensile properties. Nonetheless, a pH-responsive and mechanically robust biocompatible thin-film system may show potential applications in the biomedical field.

scholarly journals Functional Polyoxometalate Thin Films via Electrostatic Layer-by-Layer Self-Assembly

2003 ◽  
Vol 14 (3) ◽  
pp. 405-419 ◽  
Author(s):  
Shaoqin Liu ◽  
Dirk Volkmer ◽  
Dirk G. Kurth
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Layer By Layer

Preparation of Very Reactive Thiol-Protected Gold Nanoparticles: Revisiting the Brust-Schiffrin Method

2006 ◽  
Vol 6 (3) ◽  
pp. 708-712 ◽  
Author(s):  
Koiti Araki ◽  
Eisuke Mizuguchi ◽  
Hirofumi Tanaka ◽  
Takuji Ogawa
Keyword(s):  
Thin Films ◽  
Gold Nanoparticles ◽  
Surface Functionalization ◽  
Self Assembly ◽  
Gold Clusters ◽  
Layer By Layer ◽  
Inorganic Hybrid ◽  
New Material ◽  
Modified Surface ◽  
Layer Control

The preparation and properties of tert-dodecanethiol protected gold nanoparticles amenable to very rapid surface functionalization by associative mechanism is described. The new material can be easily prepared by controlling the reaction time, because only a limited but enough number of tert-dodecanethiol to stabilize the gold clusters is bond to the surface until about an hour. Accordingly, it can be isolated as a solid and handled much like the highly stabilized Brust-Schiffrin analogues, but reacted very rapidly with any molecular species containing one or multiple functional groups such as thiol, disulfide, pyridine, etc., These characteristics are ideal for the preparation of a variety of new organic–inorganic hybrid nanomaterials by coordinative self-assembly. This possibility was illustrated using meso-tetra(4-pyridyl)porphyrin, which promptly bonded to the reactive protected gold nanoparticles generating a solid that can be grown as thin films with layer-by-layer control on a suitably modified surface.

Layer by Layer Self-Assembly of Thin Films of Metal Hexacyanoferrate Multilayers

Langmuir ◽  
2001 ◽  
Vol 17 (24) ◽  
pp. 7468-7471 ◽  
Author(s):  
S. Bharathi ◽  
M. Nogami ◽  
S. Ikeda
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Layer By Layer ◽  
Metal Hexacyanoferrate

Preparation and characterization of polymeric thin films containing gold nanoshells via electrostatic layer-by-layer self-assembly

2014 ◽  
Vol 558 ◽  
pp. 200-207 ◽  
Author(s):  
Sang Ho Lee ◽  
Andrew C. Jamison ◽  
David M. Hoffman ◽  
Allan J. Jacobson ◽  
T. Randall Lee
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Gold Nanoshells ◽  
Layer By Layer ◽  
Polymeric Thin Films
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