Microfluidics for Advanced Functional Polymeric Materials

Preface xiii

1 Introduction 1

1.1 Microfluidics and Its Superiority in Controllable Fabrication of Functional Materials 1

1.2 Microfluidic Fabrication of Microspheres and Microcapsules from Microscale Closed Liquid–Liquid Interfaces 3

1.3 Microfluidic Fabrication of Membranes in Microchannels from Microscale Nonclosed Layered Laminar Interfaces 4

1.4 Microfluidic Fabrication of Microfiber Materials from Microscale Nonclosed Annular Laminar Interfaces 5

References 6

2 Shear-Induced Generation of Controllable Multiple Emulsions in Microfluidic Devices 11

2.1 Introduction 11

2.2 Microfluidic Strategy for Shear-Induced Generation of Controllable Emulsion Droplets 12

2.3 Shear-Induced Generation of Controllable Monodisperse Single Emulsions 14

2.4 Shear-Induced Generation of Controllable Multiple Emulsions 16

2.5 Shear-Induced Generation of Controllable Multicomponent Multiple Emulsions 22

2.6 Summary 31

References 31

3 Wetting-Induced Generation of Controllable Multiple Emulsions in Microfluidic Devices 35

3.1 Introduction 35

3.2 Microfluidic Strategy for Wetting-Induced Production of Controllable Emulsions 36

3.3 Generation of Controllable Multiple Emulsions via Wetting-Induced Spreading 38

3.4 Generation of Controllable Multiple Emulsions via Wetting-Induced Droplet Coalescing 47

3.5 Summary 50

References 52

4 Microfluidic Fabrication of Monodisperse Hydrogel Microparticles 55

4.1 Introduction 55

4.2 Microfluidic Fabrication of Monodisperse PNIPAM Hydrogel Microparticles for Sensing Tannic Acid (TA) 55

4.3 Microfluidic Fabrication of Monodisperse Core–Shell PNIPAM Hydrogel Microparticles for Sensing Ethyl Gallate (EG) 62

4.4 Microfluidic Fabrication of Monodisperse Core–Shell Hydrogel Microparticles for the Adsorption and Separation of Pb2+ 67

4.5 Summary 75

References 76

5 Microfluidic Fabrication of Monodisperse Porous Microparticles 79

5.1 Introduction 79

5.2 Microfluidic Fabrication of Monodisperse Porous Poly(HEMA-MMA) Microparticles 79

5.3 Microfluidic Fabrication of Porous PNIPAM Microparticles with Tunable Response Behaviors 83

5.4 Microfluidic Fabrication of PNIPAM Microparticles with Open-Celled Porous Structure for Fast Response 90

5.5 Summary 103

References 103

6 Microfluidic Fabrication of Uniform Hierarchical Porous Microparticles 105

6.1 Introduction 105

6.2 Microfluidic Strategy for Fabrication of Uniform Hierarchical Porous Microparticles 106

6.3 Controllable Microfluidic Fabrication of Uniform Hierarchical Porous Microparticles 108

6.4 Hierarchical Porous Microparticles for Oil Removal 114

6.5 Hierarchical Porous Microparticles for Protein Adsorption 116

6.6 Summary 118

References 118

7 Microfluidic Fabrication of Monodisperse Hollow Microcapsules 123

7.1 Introduction 123

7.2 Microfluidic Fabrication of Monodisperse Ethyl Cellulose Hollow Microcapsules 124

7.3 Microfluidic Fabrication of Monodisperse Calcium Alginate Hollow Microcapsules 131

7.4 Microfluidic Fabrication of Monodisperse Glucose-Responsive Hollow Microcapsules 136

7.5 Microfluidic Fabrication of Monodisperse Multi-Stimuli-Responsive Hollow Microcapsules 144

7.6 Summary 158

References 158

8 Microfluidic Fabrication of Monodisperse Core–Shell Microcapsules 161

8.1 Introduction 161

8.2 Microfluidic Strategy for Fabrication of Monodisperse Core–Shell Microcapsules 162

8.3 Smart Core–Shell Microcapsules for Thermo-Triggered Burst Release 162

8.4 Smart Core–Shell Microcapsules for Alcohol-Responsive Burst Release 171

8.5 Smart Core–Shell Microcapsules for K+-Responsive Burst Release 174

8.6 Smart Core–Shell Microcapsules for pH-Responsive Burst Release 176

8.7 Summary 182

References 183

9 Microfluidic Fabrication of Monodisperse Hole–Shell Microparticles 187

9.1 Introduction 187

9.2 Microfluidic Strategy for Fabrication of Monodisperse Hole–Shell Microparticles 188

9.3 Hole–Shell Microparticles for Thermo-Driven Crawling Movement 188

9.4 Hole–Shell Microparticles for Pb2+ Sensing and Actuating 195

9.5 Hole–Shell Microparticles for Controlled Capture and Confined Microreaction 201

9.6 Summary 207

References 207

10 Microfluidic Fabrication of Controllable Multicompartmental Microparticles 211

10.1 Introduction 211

10.2 Microfluidic Strategy for the Fabrication of Controllable Multicompartmental Microparticles 212

10.3 Multi-core/Shell Microparticles for Co-encapsulation and Synergistic Release 212

10.4 Trojan-Horse-Like Microparticles for Co-delivery and Programmed Release 217

10.5 Summary 218

References 219

11 Microfluidic Fabrication of Functional Microfibers with Controllable Internals 223

11.1 Introduction 223

11.2 Microfluidic Strategy for Fabrication of Functional Microfibers with Controllable Internals 224

11.3 Core–Sheath Microfibers with Tubular Internals for Encapsulation of Phase Change Materials 224

11.4 Peapod-Like Microfibers with Multicompartmental Internals for Synergistic Encapsulation 235

11.5 Spider-Silk-Like Microfibers with Spindle-Knot Internals for 3D Assembly and Water Collection 241

11.6 Summary 248

References 248

12 Microfluidic Fabrication of Membrane-in-a-Chip with Self-Regulated Permeability 253

12.1 Introduction 253

12.2 Microfluidic Strategy for Fabrication of Membrane-in-a-Chip 254

12.3 Temperature- and Ethanol-Responsive Smart Membrane in Microchip for Detection 255

12.4 Summary 264

References 264

13 Microfluidic Fabrication of Microvalve-in-a-Chip 267

13.1 Introduction 267

13.2 Microfluidic Strategy for Fabrication of Microvalve-in-a-Chip 268

13.3 Smart Microvalve-in-a-Chip with Thermostatic Control for Cell Culture 272

13.4 Smart Microvalve-in-a-Chip with Ultrasensitivity for Real-Time Detection 281

13.5 Summary 289

References 289

14 Summary and Perspective 295

14.1 Summary 295

14.2 Perspective 295

References 297

Index 299

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