Synthesis and characterization of ammonia-responsive polymer microgels

2015 ◽  
Vol 6 (48) ◽  
pp. 8331-8342 ◽  
Author(s):  
Yahui Peng ◽  
Xiaomei Jiang ◽  
Shoumin Chen ◽  
Qingshi Wu ◽  
Jing Shen ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Synthesis And Characterization ◽  
Sensitive Volume ◽  
Volume Phase ◽  
Highly Sensitive ◽  
Responsive Polymer

We report a polymer microgel that can undergo rapid, reversible, and highly-sensitive volume phase transitions upon varying ammonia concentrations in milieu.

Temperature-Sensitive Nanogels PNIPAAm/DMA Prepared and Research

2012 ◽  
Vol 465 ◽  
pp. 141-145
Author(s):  
Hai Yan Wang ◽  
Qian Liao ◽  
Qiao Lan Shao ◽  
Gao Qiu ◽  
Xi Hua Lu
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Synthesis And Characterization ◽  
Temperature Sensitive ◽  
Volume Phase Transition ◽  
Volume Phase ◽  
New Class ◽  
Copolymer Gels ◽  
Temperature Controlled

There have much study about thermo-responsive nanogels,which exhibit temperature-controlled volume phase transitions.There have been few reports,however,of electrostatically neutral,thermosensitive nanogels with a high composition of hydrophilic monomer.Here,we describe the synthesis and characterization of a new class of nonionic copolymer nanogels based on N-ispropylacrylamide(NIPAM) and N,N-dimethylacrylamide(DMA),wich exhibit tunable volume phase transition temperatures.And increasing percentages of DMA in copolymer gels raises the LCST,and attenuates and broadens the volume phases transition.Through DLS, AFM and UV-Vis measurement it's size,shape and VPTTs.The character of nonionic NIPAM/DMA nanogels show it's tunable phase transitions promise to be useful for applicatipns in biotechnology and medicine.

Synthesis and characterization of CO2-sensitive temperature-responsive catalytic poly(ionic liquid) microgels

2018 ◽  
Vol 9 (21) ◽  
pp. 2887-2896 ◽  
Author(s):  
Shoumin Chen ◽  
Xuezhen Lin ◽  
Zhenghao Zhai ◽  
Ruyue Lan ◽  
Jin Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Ionic Liquid ◽  
Synthesis And Characterization ◽  
Volume Phase Transition ◽  
Phase Transition Behavior ◽  
Volume Phase ◽  
Temperature Responsive ◽  
Transition Behavior ◽  
Poly Ionic Liquid

A class of poly(ionic liquid) microgels exhibiting CO2-switchable temperature-responsive volume phase transition behavior have been synthesized and used for CO2 fixation.

scholarly journals Electrochemical sensing of guanine, adenine and 8-hydroxy-2′-deoxyguanosine at glassy carbon modified with single-walled carbon nanotubes covalently functionalized with lysine

RSC Advances ◽  
2016 ◽  
Vol 6 (16) ◽  
pp. 13469-13477 ◽  
Author(s):  
Alejandro Gutiérrez ◽  
Fabiana A. Gutierrez ◽  
Marcos Eguílaz ◽  
José M. González-Domínguez ◽  
Javier Hernández-Ferrer ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Glassy Carbon ◽  
Single Walled Carbon Nanotubes ◽  
Electrochemical Sensing ◽  
Analytical Application ◽  
Synthesis And Characterization ◽  
Single Walled Carbon ◽  
Highly Sensitive ◽  
Walled Carbon Nanotubes

Synthesis and characterization of l-lysine covalently functionalized SWCNT and analytical application for the highly sensitive quantification of guanine, adenine and 8-hydroxy-2′-deoxyguanosine.

Synthesis and characterization of carboxylated polybenzimidazole and its use as a highly sensitive and selective enzyme-free H2O2 sensor

2011 ◽  
Vol 21 (20) ◽  
pp. 7254 ◽  
Author(s):  
Mu-Yi Hua ◽  
Hsiao-Chien Chen ◽  
Rung-Ywan Tsai ◽  
Yann-Lii Leu ◽  
Yin-Chih Liu ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
H2o2 Sensor ◽  
Highly Sensitive

Synthesis and Characterization of Environmentally Responsive Core-Shell Hydrogel Nanoparticles

2000 ◽  
Vol 662 ◽  
Author(s):  
Clinton D. Jones ◽  
Christina Baker ◽  
L. Andrew Lyon
Keyword(s):  
Electron Microscopy ◽  
Phase Transitions ◽  
Light Scattering ◽  
Synthesis And Characterization ◽  
Core Shell ◽  
The Core ◽  
Environmentally Responsive ◽  
Responsive Hydrogels ◽  
Measured Phase

AbstractWe report the synthesis of environmentally responsive hydrogels as nano-sized particles with core-shell morphologies. Composed of co-polymers of N-isopropylacrylamide with various co-monomers, these materials can be designed to render the core and shell responsive to different stimuli or to different magnitudes of the same stimulus. The measured phase transitions reflect the degree to which the two materials interact and thereby modulate the responsivity of the particle as a whole. Characterization of these materials is accomplished via dynamic light scattering and electron microscopy.

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