PNIPAmx–PPO36–PNIPAmx thermo-sensitive triblock copolymers: chain conformation and adsorption behavior on a hydrophobic gold surface

2016 ◽  
Vol 18 (1) ◽  
pp. 519-528 ◽  
Author(s):  
Jianyuan Li ◽  
Zhijun Zhang ◽  
Xianjing Zhou ◽  
Tongquan Chen ◽  
Jingjing Nie ◽  
...  
Keyword(s):  
Triblock Copolymers ◽  
Gold Surface ◽  
Chain Conformation ◽  
Adsorption Behavior ◽  
Sufficient Condition ◽  
Complex Adsorption

The presence of the PNIPAm block is not a sufficient condition for the complex adsorption behavior of PNIPAmx–PPO36–PNIPAmx triblock copolymers.

Complex Adsorption Behavior of Rodlike Polyelectrolyte−Surfactant Aggregates

Langmuir ◽  
2009 ◽  
Vol 25 (8) ◽  
pp. 4484-4489 ◽  
Author(s):  
Chris S. Hodges ◽  
Simon Biggs ◽  
Lynn Walker
Keyword(s):  
Adsorption Behavior ◽  
Surfactant Aggregates ◽  
Complex Adsorption

Fibrinogen Adsorption on Hydroxyapatite, Carbonate Apatite and Gold Surfaces In Situ Detected by Quartz Crystal Microbalance with Resistance Technique

2012 ◽  
Vol 1418 ◽  
Author(s):  
Hiroshi Yonekura ◽  
Motohiro Tagaya ◽  
Tomohiko Yoshioka ◽  
Toshiyuki Ikoma ◽  
Junzo Tanaka
Keyword(s):  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Bovine Serum ◽  
Electrostatic Force ◽  
Gold Surface ◽  
The Body ◽  
Adsorption Behavior ◽  
Carbonate Apatite ◽  
Blood Proteins ◽  
Biomaterial Surfaces

ABSTRACTWhen a biomaterial is implanted into the body, blood proteins adsorb on its surface and subsequently cells adhere via the protein adlayer. Thus, the understanding of protein adsorption and conformational change on the biomaterial surfaces is of great importance to control the biocompatibility such as antithrombotic properties and cell adhesion behaviors. In this study, we synthesized hydroxyapatite (HAp) and carbonate apatite (CAp) by a wet method. Then we successfully fabricated the HAp and CAp sensors for QCM-R by an electrophoretic deposition method. Adsorption behavior of proteins on the bone substitute material can be monitored by using these apatite sensors. Bovine serum albumin and fibrinogen were employed for the model proteins, and monitored the adsorption behavior on the HAp, CAp and reference gold (Au) sensors by the QCM-R technique. As a result, we revealed that fibrinogen and bovine serum albumin adsorbs on the gold surface by hydrophobic interaction, and adsorbs on the HAp and CAp surfaces mainly by electrostatic force. Besides, we revealed that fibrinogen adsorbs on the Au surface more rigid than on the HAp and CAp surfaces while bovine serum albumin adsorbs on the HAp and CAp surface more rigidly than on the Au surface.

Complex Adsorption Behavior of a Nonplanar Naphthalene Diimide on Au(111)

2019 ◽  
Vol 123 (15) ◽  
pp. 9860-9867
Author(s):  
Bertram Schulze Lammers ◽  
René Ebeling ◽  
Elena Dirksen ◽  
Thomas J. J. Müller ◽  
Silvia Karthäuser
Keyword(s):  
Adsorption Behavior ◽  
Naphthalene Diimide ◽  
Complex Adsorption

The Current Situation in Chemical Stabilization of Biological Materials

1972 ◽  
Vol 30 ◽  
pp. 132-133
Author(s):  
John H. Luft
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Osmium Tetroxide ◽  
Molecular Level ◽  
Cross Linking ◽  
Chemical Stabilization ◽  
Specimen Preparation ◽  
Sufficient Condition ◽  
Radio Telescopes

With information processing devices such as radio telescopes, microscopes or hi-fi systems, the quality of the output often is limited by distortion or noise introduced at the input stage of the device. This analogy can be extended usefully to specimen preparation for the electron microscope; fixation, which initiates the processing sequence, is the single most important step and, unfortunately, is the least well understood. Although there is an abundance of fixation mixtures recommended in the light microscopy literature, osmium tetroxide and glutaraldehyde are favored for electron microscopy. These fixatives react vigorously with proteins at the molecular level. There is clear evidence for the cross-linking of proteins both by osmium tetroxide and glutaraldehyde and cross-linking may be a necessary if not sufficient condition to define fixatives as a class.

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