CO2 -Responsive Nanofibrous Membranes with Switchable Oil/Water Wettability.

Responsive polymer interfacial materials are ideal candidates for controlling surface wetting behavior. Here we developed smart nanostructured electrospun polymer membranes which are capable of switching oil/water wettability using CO2 as the trigger. In particular, the combination of CO2 -responsiveness and porous nanostructure enables the as-prepared membranes to be used as a novel oil/water on-off switch. We anticipate that the promising versatility and simplicity of this system would not only open up a new way of surface wettability change regulation by gas, but also have obvious advantages in terms of highly controlled oil/water separation and CO2 applications.

[1]  George M. Whitesides,et al.  Wet chemical approaches to the characterization of organic surfaces: self-assembled monolayers, wetting, and the physical-organic chemistry of the solid-liquid interface , 1990 .

[2]  I. Kim,et al.  Mechanical Properties, Morphologies, and Microstructures of Novel Electrospun Metallized Nanofibers , 2011 .

[3]  Lei Jiang,et al.  Reversible switching between superhydrophilicity and superhydrophobicity. , 2004, Angewandte Chemie.

[4]  Takao Aoyagi,et al.  A smart nanofiber web that captures and releases cells. , 2012, Angewandte Chemie.

[5]  Zhiguang Guo,et al.  pH-responsive bidirectional oil-water separation material. , 2013, Chemical communications.

[6]  Xia Tong,et al.  General Strategy for Making CO2-Switchable Polymers. , 2012, ACS macro letters.

[7]  D. J. Fauth,et al.  Innovative nano-layered solid sorbents for CO2 capture. , 2011, Chemical communications.

[8]  Ce Wang,et al.  One‐Dimensional Polyelectrolyte/Polymeric Semiconductor Core/Shell Structure: Sulfonated Poly(arylene ether ketone)/Polyaniline Nanofibers for Organic Field‐Effect Transistors , 2011, Advanced materials.

[9]  M. Qu,et al.  CO2‐Responsive “Smart” Single‐Walled Carbon Nanotubes , 2013, Advanced materials.

[10]  Paula M Mendes,et al.  Stimuli-responsive surfaces for bio-applications. , 2008, Chemical Society reviews.

[11]  Lei Jiang,et al.  Direction Controlled Driving of Tiny Water Drops on Bioinspired Artificial Spider Silks , 2010, Advanced materials.

[12]  Jinying Yuan,et al.  CO2-responsive polymeric vesicles that breathe. , 2011, Angewandte Chemie.

[13]  E. Kumacheva,et al.  Multiple shape transformations of composite hydrogel sheets. , 2013, Journal of the American Chemical Society.

[14]  Bin Ding,et al.  In situ polymerized superhydrophobic and superoleophilic nanofibrous membranes for gravity driven oil-water separation. , 2013, Nanoscale.

[15]  Yongping Hou,et al.  Temperature Controlled Water/Oil Wettability of a Surface Fabricated by a Block Copolymer: Application as a Dual Water/Oil On–Off Switch , 2013, Advanced materials.

[16]  Jinying Yuan,et al.  Fabrication and Sensing Behavior of Cr2O3 Nanofibers via In situ Gelation and Electrospinning , 2006 .

[17]  H. Erbil,et al.  Transformation of a Simple Plastic into a Superhydrophobic Surface , 2003, Science.

[18]  Lin Feng,et al.  Structured cone arrays for continuous and effective collection of micron-sized oil droplets from water , 2013, Nature Communications.

[19]  Charles A. Eckert,et al.  Green chemistry: Reversible nonpolar-to-polar solvent , 2005, Nature.

[20]  Robert Langer,et al.  Smart Biomaterials , 2004, Science.

[21]  Lei Jiang,et al.  Controlling wettability and photochromism in a dual-responsive tungsten oxide film. , 2006, Angewandte Chemie.

[22]  Yadong Yin,et al.  Responsive photonic crystals. , 2011, Angewandte Chemie.

[23]  Young-Jin Kim,et al.  A Smart Hyperthermia Nanofiber with Switchable Drug Release for Inducing Cancer Apoptosis , 2013 .

[24]  X. Sui,et al.  Preparation of Cellulose Nanofibers/Nanoparticles via Electrospray , 2008 .

[25]  Wonjae Choi,et al.  Hygro-responsive membranes for effective oil–water separation , 2012, Nature Communications.

[26]  Jianshu Li,et al.  Tumor-targeted aggregation of pH-sensitive nanocarriers for enhanced retention and rapid intracellular drug release , 2014 .

[27]  Jianping Ge,et al.  Responsive photonische Kristalle , 2011 .

[28]  Jinying Yuan,et al.  Breathing polymersomes: CO2-tuning membrane permeability for size-selective release, separation, and reaction. , 2013, Angewandte Chemie.

[29]  Peng Wang,et al.  Smart surfaces with switchable superoleophilicity and superoleophobicity in aqueous media: toward controllable oil/water separation , 2012 .

[30]  Patrick Theato,et al.  CO2 -Responsive polymers. , 2013, Macromolecular rapid communications.

[31]  Lei Jiang,et al.  A super-hydrophobic and super-oleophilic coating mesh film for the separation of oil and water. , 2004, Angewandte Chemie.

[32]  Younan Xia,et al.  Electrospinning of Nanofibers: Reinventing the Wheel? , 2004 .

[33]  S. Thayumanavan,et al.  Feedback regulated drug delivery vehicles: carbon dioxide responsive cationic hydrogels for antidote release. , 2010, Biomacromolecules.

[34]  Younan Xia,et al.  Highly porous fibers by electrospinning into a cryogenic liquid. , 2006, Journal of the American Chemical Society.

[35]  Hang Zhou,et al.  Synthesis and Self-Assembly of CO2–Temperature Dual Stimuli-Responsive Triblock Copolymers , 2014 .

[36]  M. C. Stuart,et al.  Emerging applications of stimuli-responsive polymer materials. , 2010, Nature materials.

[37]  Yue Zhao,et al.  CO2-stimulated diversiform deformations of polymer assemblies. , 2013, Journal of the American Chemical Society.

[38]  Yen Wei,et al.  One-dimensional conducting polymer nanocomposites: Synthesis, properties and applications , 2011 .

[39]  D. Ma,et al.  In situ recyclable gold nanoparticles using CO2-switchable polymers for catalytic reduction of 4-nitrophenol. , 2012, Chemical communications.

[40]  Jinying Yuan,et al.  A CO₂- and temperature-switchable "schizophrenic" block copolymer: from vesicles to micelles. , 2014, Chemical communications.

[41]  Philip G. Jessop,et al.  Tertiary amine solvents having switchable hydrophilicity , 2011 .

[42]  Eiichi Kojima,et al.  Light-induced amphiphilic surfaces , 1997, Nature.