A negative correlation between water content and protein adsorption on polymer brushes

2019 ◽  
Vol 7 (13) ◽  
pp. 2162-2168 ◽  
Author(s):  
Wei Dai ◽  
Cong Zheng ◽  
Bintao Zhao ◽  
Kuo Chen ◽  
Pengxiang Jia ◽  
...  
Keyword(s):  
Water Content ◽  
Protein Adsorption ◽  
Negative Correlation ◽  
Polymer Brushes

A negative correlation between the water content inside polymer brushes and protein adsorption.

Tailored Poly(2-oxazoline) Polymer Brushes to Control Protein Adsorption and Cell Adhesion

2012 ◽  
Vol 12 (7) ◽  
pp. 926-936 ◽  
Author(s):  
Ning Zhang ◽  
Tilo Pompe ◽  
Ihsan Amin ◽  
Robert Luxenhofer ◽  
Carsten Werner ◽  
...  
Keyword(s):  
Cell Adhesion ◽  
Protein Adsorption ◽  
Polymer Brushes ◽  
Control Protein

Hydrogen bonding induced protein adsorption on polymer brushes: a Monte Carlo study

2017 ◽  
Vol 5 (43) ◽  
pp. 8479-8486 ◽  
Author(s):  
Yuanyuan Han ◽  
Jie Cui ◽  
Jing Jin ◽  
Wei Jiang
Keyword(s):  
Monte Carlo ◽  
Hydrogen Bonding ◽  
Protein Adsorption ◽  
Polymer Brushes ◽  
Monte Carlo Study ◽  
Adsorption Behaviors

The protein adsorption behaviors on polymer brushes in the presence of hydrogen bonding between proteins and polymer brushes.

scholarly journals Stem Water Content for Crape Myrtle in Response to Drought, Cold, and Disease Stress

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Chao Gao ◽  
Yue Zhao ◽  
Yandong Zhao
Keyword(s):  
Drought Stress ◽  
Cold Stress ◽  
Water Content ◽  
Negative Correlation ◽  
Correlation Coefficients ◽  
Cold Weather ◽  
Positive Correlation ◽  
Health Level ◽  
Diurnal Range ◽  
Stem Water

The abiotic and biotic stresses including drought, cold, and disease stress are linked by the fact that they all decrease the availability of water to plant cells. In previous studies, some physiological factors related with plant water status, such as stem sap flow, leaf transpiration rate, and water potential, were used to assess the effects of these stresses on plants. But there are few studies about the effects of these stresses on stem water content (StWC) which can be measured by a novel SWR sensor. In this study, crape myrtle was selected as an experimental subject and its StWC was observed in four experiments including no stress, drought, cold, and disease stress. Before conducting stress experiments, the StWC and environmental and physiological parameters were synchronously monitored under unstressed conditions on a typical day in summer. In the experiment of drought stress, the StWC was monitored under different gradients of soil moisture. In the experiment of cold stress, the StWC was monitored in warm and cold weather, respectively. In the experiment of disease stress, the StWC was monitored under different frequencies of disease treatment. The results showed that the correlation coefficients between StWC and PAR and VPD were larger than 0.5 and the correlation coefficients between StWC and Pn, Tr, Gs, and Ci were larger than 0.8 under no stress. The diurnal mean of StWC decreased firstly, then remained stable for a period of time, and eventually continued to fall under drought stress. On the whole, there was a negative correlation between the diurnal mean of StWC and the degree of drought stress. The StWC showed opposite diurnal variation rules in warm and cold weather. There was a positive correlation between the diurnal range of StWC and the degree of cold stress. The diurnal minimum, maximum, and mean of StWC showed a positive correlation with the health level of plants and the diurnal range of StWC showed a negative correlation with the health level of plants. In conclusion, the StWC can be used as a qualitative evaluation index of the degree of the three types of stress.

scholarly journals Study of thiol–ene chemistry on polymer brushes and application to surface patterning and protein adsorption

2016 ◽  
Vol 7 (4) ◽  
pp. 979-990 ◽  
Author(s):  
Khooi Y. Tan ◽  
Madeleine Ramstedt ◽  
Burcu Colak ◽  
Wilhelm T. S. Huck ◽  
Julien E. Gautrot
Keyword(s):  
Protein Adsorption ◽  
Polymer Brushes ◽  
Surface Patterning

The functionalisation and patterning of polymer brushes via thiol–ene chemistry is studied via ellipsometry, XPS and AFM.

scholarly journals An Experimental–Theoretical Analysis of Protein Adsorption on Peptidomimetic Polymer Brushes

Langmuir ◽  
2011 ◽  
Vol 28 (4) ◽  
pp. 2288-2298 ◽  
Author(s):  
K. H. Aaron Lau ◽  
Chunlai Ren ◽  
Sung Hyun Park ◽  
Igal Szleifer ◽  
Phillip B. Messersmith
Keyword(s):  
Theoretical Analysis ◽  
Protein Adsorption ◽  
Polymer Brushes

Polyelectrolyte brushes: Water Content, Zeta Potential and Mechanical Properties

2015 ◽  
Vol 1754 ◽  
pp. 53-58
Author(s):  
Joseba Irigoyen ◽  
Jagoba Iturri ◽  
José Luis Camacho ◽  
Edwin Donath ◽  
Sergio Moya
Keyword(s):  
Ionic Strength ◽  
Zeta Potential ◽  
Water Content ◽  
Polymer Brushes ◽  
Polymer Brush ◽  
Trimethylammonium Chloride ◽  
Surface Approach ◽  
Force Microscopy ◽  
Polyelectrolyte Brushes ◽  
Atomic Force

ABSTRACTPolymer brushes of poly[2-(methacryloyloxy)ethyl]trimethylammonium chloride (PMETAC) and poly(sulfo propyl methacrylate) (PSPM) were synthesized by Atomic Transfer Radical Polymerization from planar and colloidal surfaces. Polymer brush growth was followed by QCMD and the water content determined by combined QCMD and elipsometry. From the water content the percentage of water lost during the brush collapse with the ionic strength could be obtained.Highly charged PSPM brushes were indented by Atomic Force Microscopy at different ionic strengths. The force response was fitted to a phenomenological equation analogous to the equation of state of a compressible fluid. Internal energy and brush compressibility were obtained as a function of ionic strength.Spherical brushes of PMETAC and PSPM display an invariance of the zeta potential with ionic strength in the range from 20 mM to 200 mM NaCl, the zeta potential remains almost constant. This invariance can be explained applying a hairy surface approach.

scholarly journals Combined QCM-D/GE as a tool to characterize stimuli-responsive swelling of and protein adsorption on polymer brushes grafted onto 3D-nanostructures

2014 ◽  
Vol 406 (28) ◽  
pp. 7233-7242 ◽  
Author(s):  
Meike Koenig ◽  
Tadas Kasputis ◽  
Daniel Schmidt ◽  
Keith B. Rodenhausen ◽  
Klaus-Jochen Eichhorn ◽  
...  
Keyword(s):  
Protein Adsorption ◽  
Polymer Brushes ◽  
Stimuli Responsive ◽  
3D Nanostructures

scholarly journals A binary mixed polymer brushes coating with adjusted hydrophobic property to control protein adsorption

2021 ◽  
Author(s):  
Chaoshi Chen ◽  
Muhammad Atif ◽  
Kang He ◽  
Miao Zhang ◽  
Lijuan Chen ◽  
...  
Keyword(s):  
Protein Adsorption ◽  
Polymer Brushes ◽  
Glycidyl Methacrylate ◽  
Hydrophobic Property ◽  
Isopropyl Acrylamide ◽  
Control Protein

In this work, binary mixed polymer brushes based on poly[(2-methyl-2-oxazoline)-random-glycidyl methacrylate] (PMOXA-r-GMA) and poly (glycidyl methacrylate)-block-poly(N-isopropyl acrylamide)-block-polystyrene (PGMA-b-PNIPAM-b-PSt) were used as thermoresponsive coating to control the protein adsorption. Firstly, PMOXA-r-GMA...

scholarly journals Erratum to: Combined QCM-D/GE as a tool to characterize stimuli-responsive swelling of and protein adsorption on polymer brushes grafted onto 3D-nanostructures

2014 ◽  
Vol 407 (4) ◽  
pp. 1275-1276 ◽  
Author(s):  
Meike Koenig ◽  
Tadas Kasputis ◽  
Daniel Schmidt ◽  
Keith B. Rodenhausen ◽  
Klaus-Jochen Eichhorn ◽  
...  
Keyword(s):  
Protein Adsorption ◽  
Polymer Brushes ◽  
Stimuli Responsive ◽  
3D Nanostructures
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