Nanostructured, electroactive and bioapplicable materials

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Dedications This dissertation is dedicated to my husband Yunkai Zhou, my parents, Mr. and Mrs. Hai Cheng and Linmeng Wang, for their encouragement, support and love. ii
Acknowledgments In retrospect of my past few years, I have always realized that there are many people who have directed, assisted and supported me during my Ph.D. study. Without them I would never be able to make to this point. Although it would be impossible to name each of them, I would like to express my deep gratitude to all of them. First, I would like to thank my advisor, Dr. Yen Wei, for his tremendous effort in guiding, helping and encouraging me during the last five years. His broad knowledge, insightful thoughts and sparkling ideas have significantly widened my horizons and inspired my research. Personally, I have also greatly benefited from his devoted, energetic and enthusiastic manner towards science. I also thank the members of my candidacy exam and/or dissertation committees, Dr. Jean-Claude Bradley, Dr. Franklin A. Davis, Dr. Joe P. Foley, Dr. Amar Nath, Dr. Sally Solomon, and Dr. Margaret A. Wheatley, for their time and valuable suggestions. Special thanks are due to the committee chair, Dr. Anthony W. Addison for insightful discussions on many topics, including my oral proposal and research collaboration. I am also grateful to Dr. Sally Solomon for her detailed comments on my oral proposal. I would like to thank many of my collaborators. I specially thank Dr. Shuxi Li for his valuable guidance and assistance when I first started my research at Drexel University and all along thereafter. Many thanks are due to Dr. Qiuwei Feng, who has provided generous help in my research, especially in the sol-gel projects, and also in my personal life as my best friend. I also thank Ms. Elizabeth Guterman and Dr. Peter Lelkes of the iii
Page 1: Nanostructured, Electroactive and B
Page 6 and 7: School of Biomedical Engineering, S
Page 8 and 9: 2.2. Experimental .................
Page 10 and 11: 5.2.2. Treatment of Substrate Surfa
Page 12 and 13: 8.2. Electroactive, Bioapplicable M
Page 14 and 15: List of Tables Table 2-1. Compositi
Page 16 and 17: Figure 2-9. BJH pore size distribut
Page 18 and 19: xvi pattern of gold nanoparticles i
Page 20 and 21: xviii PANI under culturing conditio
Page 22 and 23: Figure B-8. Cyclic voltammogram (Pt
Page 24: The resultant polyaniline-collagen
Page 27 and 28: Chapter 2 presents a study focused
Page 29 and 30: Chapter 7 is focused on the synthes
Page 31 and 32: surfactant templated method was ext
Page 33 and 34: The porous structure of the silica
Page 35 and 36: Before early 1990s, with a pore or
Page 37 and 38: − Neutral surfactants: the hydrop
Page 39 and 40: The mechanism of nonsurfactant temp
Page 41 and 42: zero in a pore. Structural informat
Page 43 and 44: 1.5.1. Gas Sorption Measurement As
Page 45 and 46: which is usually associated with ca
Page 47 and 48: 16. Iler, R. K. The Chemistry of Si
Page 49 and 50: 52. Sayari, A.; Danumah, C.; Moudra
Page 51 and 52: Figure 1-1. Three structure types p
Page 53 and 54: Figure 1-3. IUPAC classification of
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Chapter 2. Mesoporous Sol-Gel Mater
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well formed below the isoelectric p
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2.1.2. Nonsurfactant Templates and
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since controllable partial removal
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were ground manually into fine powd
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volatile sol-gel reaction byproduct
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After the thermal treatment at 150
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oiling point of benzoin (i.e., 194
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interconnected pores or channels wi
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6. Huo, Q.; Magargolese, D. I.; Cie
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Table 2-1. Composition and pore par
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Weight (%) 100 80 60 40 20 0 0 100
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Weight (%) 100 90 80 70 60 0 100 20
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Weight (%) 100 90 80 70 60 50 40 0
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Figure 2-7. Representative IR spect
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dV/dD Pore Volume (cm 3 g -1 Å -1
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dv/dD, Pore Volume (cm 3 g -1 Å -1
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Net Pore Volume (cm 3 g -1 ) 0.6 0.
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Chapter 3. Synthesis of Mesoporous
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preparation conditions. In general,
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cubic, as well as vesicular structu
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3.2 Experimental The synthesis appr
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3.2.3. Synthesis of Mesoporous Sphe
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fructose is incorporated into the s
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mainly attributed to the monolayer-
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with nonsurfactant templates at dif
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3.4. Conclusions and Remarks In the
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11. Matijević, E.; Gheradi, P. Tra
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41. Polarz, S.; Smarsly, B.; Bronst
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(a) (b) Figure 3-1. Typical SEM ima
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Volume Adsorbed (cm 3 g -1 , STP) 3
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Figure 3-5. Representative TEM imag
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(a) (b) Figure 3-7. Typical SEM ima
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Chapter 4. Synthesis of Mesoporous
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nm, and the reaction reaches the hi
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microemulsion. 39 Martino et al. re
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the colloidal gold sol was combined
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holders with adhesive carbon tape.
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trapped in the gold-silica matrix,
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108 The Barrett-Joyner-Halenda (BJH
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indicative of a well-defined crysta
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(i.e., 2-50 nm). Combining both hig
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19. Hayashi, T.; Tanaka, K.; Haruta
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53. Qi, L.; Ma, J.; Cheng, H.; Zhao
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Figure 4-1. Representative X-ray en
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Pore Volume (cm 3 g -1 A -1 ) 0.06
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(a) (b) 122 Figure 4-5. (a) Represe
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Absorbance Wavelength (nm) Figure 4
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5.1.1. Organic-Inorganic Nanocompos
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128 We are also interested in the p
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mica and graphite, the top layer wa
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mode. Scanning electron microscopy
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Waal’s forces), the agglomeration
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136 A single glass transition tempe
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5.5. Acknowledgments 138 I want to
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30. Dimitrov, A. S.; Nagayama, K. L
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(a) (b) 142 Figure 5-2. Representat
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144 Figure 5-4. Representative AFM
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Figure 5-6. Representative IR spect
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(a) (b) Figure 5-8. Representative
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the possibility of utilizing conduc
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iocompatibility and water solubilit
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emeraldine salt, the unique conduct
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acid (HCl, 37.3%, Fisher), hydrogen
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the surface of polymer coated cultu
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acidic acid aqueous solution showed
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oxidant, indicating the formation o
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complex was synthesized by pre-alig
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8. Epstein, A. J. Springer Ser. Mat
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45. Liu, J.-M.; Yang, S. Chem. Comm
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Figure 6-1. Schematics of biologica
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172 Figure 6-3. UV-Vis absorption s
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Figure 6-5. FT-IR spectra of (a) co
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176 Figure 6-7. UV-Vis absorption s
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(a) (b) 178 Figure 6-9. Comparison
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prepared and purified as substitute
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greatest advantages of organic mate
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een explored as a direct and effect
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if we could fine-tune the carrier t
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NMR (250 MHz, DCCl3) δ (ppm): 8.95
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7.2.4. Instrumentation and Characte
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The absence of the proton from the
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194 The absorbance at 600 nm is the
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L3Al dissociated to free ligand (L)
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198 State and Integrated Circuit Te
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34. Stossel, M.; Staudigel, J.; Ste
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Table 7-1. The UV absorbance at 600
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Figure 7-2. Schematic cross-section
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Figure 7-4. NMR Spectra of ligand 1
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Figure 7-6. FT-IR spectra of (a) li
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Figure 7-8. During air oxidation: 1
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[A] 1.2E-04 1.0E-04 8.0E-05 6.0E-05
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Figure 7-12. Mass spectrum of alumi
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Chapter 8. Concluding Remarks 216 T
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218 In contrast to the conventional
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properties of gold nanoparticles ma
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222 In an effort to obtain new elec
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as sensor units, the biodegradable
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polyanhydrides, 4 polyorthoesters,
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substitution reaction, several hund
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polyphosphazenes. Obtained material
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polyphosphazene network. Studies in
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matrix is readily formed due to the
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236 The delivery system can be made
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phosphazene main chains. Further in
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9. Allcock, H. R. Adv. Mater. 1994,
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Figure A-1. Repeating unit in polyp
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Figure A-3. Applications of materia
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Figure A-5. Preparation of poly(N-i
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B.3. Acknowledgments 248 I am grate
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Figure B-2. Cyclic voltammogram (Hg
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Figure B-4. Cyclic voltammogram (Pt
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Figure B-6. Cyclic voltammogram (Hg
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Figure B-8. Cyclic voltammogram (Pt
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