Microfluidic actuator based on stimuli-responsive hydrogel grafted into Cucurbita moschata xylems

Soft Matter ◽  
2021 ◽  
Author(s):  
Marcelo Ricardo Romero ◽  
Gisella Trejo ◽  
José Vedelago ◽  
Cesar Gomez
Keyword(s):  
Cucurbita Moschata ◽  
Stimuli Responsive ◽  
Ph Responsive ◽  
Chemically Modified ◽  
Responsive Polymer ◽  
Plant Stem

A chemical actuator was developed taking advantage of the internal microstructure of a plant stem. Stem xylems of Cucurbita moschata were chemically modified with a pH-responsive polymer to obtain an...

Diazonaphthoquinone-based amphiphilic polymer assemblies for NIR/UV light- and pH-responsive controlled release

2018 ◽  
Vol 9 (4) ◽  
pp. 463-471 ◽  
Author(s):  
Qingwei Li ◽  
Ziquan Cao ◽  
Guojie Wang
Keyword(s):  
Controlled Release ◽  
Uv Light ◽  
Amphiphilic Polymer ◽  
Stimuli Responsive ◽  
Ph Responsive ◽  
Responsive Polymer ◽  
Self Assembled ◽  
Stimuli Responsive Polymer ◽  
Ph Controlled

A multiple-stimuli-responsive polymer nanocarrier has been self-assembled for NIR/UV light- and pH-controlled cargo release.

scholarly journals A pH-responsive soluble polymer-based homogeneous system for fast and highly efficient N-glycoprotein/glycopeptide enrichment and identification by mass spectrometry

2015 ◽  
Vol 6 (7) ◽  
pp. 4234-4241 ◽  
Author(s):  
Haihong Bai ◽  
Chao Fan ◽  
Wanjun Zhang ◽  
Yiting Pan ◽  
Lin Ma ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Self Assembly ◽  
Reaction System ◽  
Homogeneous System ◽  
Homogeneous Reaction ◽  
Stimuli Responsive ◽  
Ph Responsive ◽  
Highly Efficient ◽  
Responsive Polymer ◽  
Stimuli Responsive Polymer

A homogeneous reaction system was developed for facile and highly efficient enrichment of biomolecules by exploiting the reversible self-assembly of a stimuli-responsive polymer.

pH-Controlled multiple-drug delivery by a novel antibacterial nanocomposite for combination therapy

RSC Advances ◽  
2015 ◽  
Vol 5 (128) ◽  
pp. 105678-105691 ◽  
Author(s):  
Fatemeh Bazmi zeynabad ◽  
Roya Salehi ◽  
Effat Alizadeh ◽  
Hossein Samadi Kafil ◽  
Azad Mohammad Hassanzadeh ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Combination Therapy ◽  
Multiple Drug ◽  
Stimuli Responsive ◽  
Ph Responsive ◽  
Polymer Clay Nanocomposite ◽  
Responsive Polymer ◽  
Multiple Drug Delivery ◽  
Stimuli Responsive Polymer ◽  
Ph Controlled

The modified cationic silica based stimuli responsive polymer–clay nanocomposite with pH responsive release manner could improve the targeting performance.

Multi-Stimuli-Responsive Mesoporous Membranes and Effect of Molecular Architecture on Thermo- and pH-Responsive Behavior of the grafted Block Copolymer brushes

2019 ◽  
Author(s):  
Yanchun Tang ◽  
Kohzo Ito ◽  
Hideaki Yokoyama
Keyword(s):  
Polymer Brushes ◽  
Diblock Copolymers ◽  
Neutron Reflectivity ◽  
Molecular Architecture ◽  
Stimuli Responsive ◽  
Responsive Polymer ◽  
The Matrix ◽  
Stable Part ◽  
Copolymer Brushes ◽  
Mesoporous Membranes

In this study, we prepared ultrafiltration membranes with a decoupled responses of filtration property to temperature and pH. The membrane preparation method was developed based on our previous work. We utilized methanol-supercritical carbon dioxide (methanol-scCO<sub>2</sub>) selective swelling method to introduce nanopores to block copolymers containing poly(diethylene glycol) methyl ether methacrylate (PMEO<sub>2</sub>MA), poly(N,N-dimethylaminoethyl methacrylate) (PDMAEMA) and polystyrene (PS) blocks. Formation of the mesoporous barrier layer with PS being the mechanically stable part of the matrix was driven by selective swelling of the PMEO<sub>2</sub>MA-b-PDMAEMA domains. Due to the selective swelling of PMEO<sub>2</sub>MA or PDMAEMA domains to introduce pores, the interior of the pores are covered with PMEO<sub>2</sub>MA or PDMAEMA blocks after pore formation. The PMEO<sub>2</sub>MA-b-PDMAEMA polymer brushes are naturally attached on the pore walls and worked as functional gates. PMEO<sub>2</sub>MA is a non-toxic, neutral thermo-responsive polymer with LCST at 26 ᴼC. PDMAEMA is a typical weak polyelectrolyte with pK<sub>a</sub> value at 7.0-7.5 and also a thermo-responsive polymer revealed a LCST of 20-80 °C in aqueous solution. Therefore, these membranes were expected to have multi dimensions as function of the combination of temperature and pH. Moreover, to understand the detail of the temperature and pH depended conformation transitions of PMEO<sub>2</sub>MA-b-PDMAEMA brushes, those diblock copolymers were end-tethered on flat substrates and analyzed via neutron reflectivity (NR).

Soft stimuli-responsive grippers and machines with high load-to-weight ratios

2019 ◽  
Vol 6 (1) ◽  
pp. 160-168 ◽  
Author(s):  
Yajuan Sun ◽  
Linfeng Chen ◽  
Yan Jiang ◽  
Xuan Zhang ◽  
Xiukai Yao ◽  
...  
Keyword(s):  
General Class ◽  
High Load ◽  
Stimuli Responsive ◽  
Ph Responsive

A general class of stimuli-responsive grippers and actuators (e.g., temperature- and pH-responsive) with surprisingly high gripping strengths is introduced.

scholarly journals Grafting of a Stimuli Responsive Polymer on Nanolayered Coextruded PS/PCL Films by Surface Initiated Polymerization

2016 ◽  
Vol 301 (7) ◽  
pp. 870-875 ◽  
Author(s):  
Katrina D. Pangilinan ◽  
Al Christopher C. de Leon ◽  
Joey Dacula Mangadlao ◽  
Eric Baer ◽  
Rigoberto C. Advincula
Keyword(s):  
Stimuli Responsive ◽  
Surface Initiated Polymerization ◽  
Responsive Polymer ◽  
Stimuli Responsive Polymer

Stimuli-responsive polymer vesicles

Soft Matter ◽  
2009 ◽  
Vol 5 (5) ◽  
pp. 927 ◽  
Author(s):  
Min-Hui Li ◽  
Patrick Keller
Keyword(s):  
Stimuli Responsive ◽  
Polymer Vesicles ◽  
Responsive Polymer ◽  
Stimuli Responsive Polymer
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