1
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Shenvi Usgaonkar S, Ellison CJ, Kumar S. Photochemically Induced Marangoni Patterning of Polymer Bilayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5970-5978. [PMID: 37068129 DOI: 10.1021/acs.langmuir.2c03295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Surface-tension gradients created along a polymer film by patterned photochemical reactions are a powerful tool for creating surface topography. Here, we use mathematical modeling to explore a strategy for patterning photochemically inactive polymers by coupling a light-sensitive and light-insensitive polymer to form a polymer bilayer. The light-sensitive polymer forms the top layer, and the most dominant surface-tension gradients are introduced at the interface between this layer and air. Lubrication theory is used to derive nonlinear partial differential equations describing the heights of each layer, and linear analysis and nonlinear simulations are performed to characterize interface dynamics. Patterns form at both the polymer-air and polymer-polymer interfaces at early thermal annealing times as a result of Marangoni stresses but decay on prolonged thermal annealing as a result of the dissipative mechanisms of capillary leveling and photoproduct diffusion, thus setting a limit to the maximum individual layer deformation. Simulations also show that the bottom-layer features can remain "trapped", i.e., exhibit no significant decay, even while the top layer topography has dissipated. We study the effects of two key parameters, the initial thickness ratio and the viscosity ratio of the two polymers, on the maximum deformation attained in the bottom layer and the time taken to attain this deformation. We identify regions of parameter space where the maximum bottom-layer deformation is enhanced and the attainment time is reduced. Overall, our study provides guidelines for designing processes to pattern photochemically inactive polymers and create interfacial topography in polymer bilayers.
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Affiliation(s)
- Saurabh Shenvi Usgaonkar
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Christopher J Ellison
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Satish Kumar
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
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2
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Control of Surface Properties of Hyaluronan/Chitosan Multilayered Coatings for Tumor Cell Capture. POLYSACCHARIDES 2021. [DOI: 10.3390/polysaccharides2020025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Prostate cancer (PCa) is a slow-growing neoplasm that has, when diagnosed in its early stages, great chances of cure. During initial tumor development, current diagnostic methods fail to have the desired accuracy, thus, it is necessary to develop or improve current detection methods and prognostic markers for PCa. In this scenario, films composed of hyaluronic acid (HA) and chitosan (CHI) have demonstrated significant capture potential of prostate tumor cells (PC3 line), exploring HA as a CD44 receptor ligand and direct mediator in cell-film adhesion. Here, we present a strategy to control structural and cell adhesion properties of HA/CHI films based on film assembly conditions. Films were built via Layer-by-layer (LbL) deposition, where the pH conditions (3.0 and 5.0) and number of bilayers (3.5, 10.5, and 20.5) were controlled. The characterization of these films was carried out using profilometry, ultraviolet-visible (UV-VIS), atomic force microscopy (AFM) and contact angle measurements. Multilayer HA/CHI films produced at pH 3.0 gave optimum surface wettability and availability of free carboxyl groups. In turn, at pH 5.0, the coverings were thinner and presented a smoother surface. Films prepared with 3.5 bilayers showed greater tumor cell capture regardless of the pH condition, while films containing 10.5 and 20.5 bilayers presented a significant swelling process, which compromised their cell adhesion potential. This study shows that surface chemistry and morphology are critical factors for the development of biomaterials designed for several cell adhesion applications, such as rapid diagnostic, cell signaling, and biosensing mechanisms.
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3
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Effective elastin-like recombinamers coating on poly(vinylidene) fluoride membranes for mesenchymal stem cell culture. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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4
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Sharma V, Sundaramurthy A. Multilayer capsules made of weak polyelectrolytes: a review on the preparation, functionalization and applications in drug delivery. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:508-532. [PMID: 32274289 PMCID: PMC7113543 DOI: 10.3762/bjnano.11.41] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 02/25/2020] [Indexed: 06/11/2023]
Abstract
Multilayer capsules have been of great interest for scientists and medical communities in multidisciplinary fields of research, such as drug delivery, sensing, biomedicine, theranostics and gene therapy. The most essential attributes of a drug delivery system are considered to be multi-functionality and stimuli responsiveness against a range of external and internal stimuli. Apart from the highly explored strong polyelectrolytes, weak polyelectrolytes offer great versatility with a highly controllable architecture, unique stimuli responsiveness and easy tuning of the properties for intracellular delivery of cargo. This review describes the progress in the preparation, functionalization and applications of capsules made of weak polyelectrolytes or their combination with biopolymers. The selection of a sacrificial template for capsule formation, the driving forces involved, the encapsulation of a variety of cargo and release based on different internal and external stimuli have also been addressed. We describe recent perspectives and obstacles of weak polyelectrolyte/biopolymer systems in applications such as therapeutics, biosensing, bioimaging, bioreactors, vaccination, tissue engineering and gene delivery. This review gives an emerging outlook on the advantages and unique responsiveness of weak polyelectrolyte based systems that can enable their widespread use in potential applications.
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Affiliation(s)
- Varsha Sharma
- Department of Biomedical Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - Anandhakumar Sundaramurthy
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
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5
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Abalymov A, Parakhonskiy B, Skirtach AG. Polymer- and Hybrid-Based Biomaterials for Interstitial, Connective, Vascular, Nerve, Visceral and Musculoskeletal Tissue Engineering. Polymers (Basel) 2020; 12:E620. [PMID: 32182751 PMCID: PMC7182904 DOI: 10.3390/polym12030620] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/19/2020] [Accepted: 03/03/2020] [Indexed: 12/11/2022] Open
Abstract
In this review, materials based on polymers and hybrids possessing both organic and inorganic contents for repairing or facilitating cell growth in tissue engineering are discussed. Pure polymer based biomaterials are predominantly used to target soft tissues. Stipulated by possibilities of tuning the composition and concentration of their inorganic content, hybrid materials allow to mimic properties of various types of harder tissues. That leads to the concept of "one-matches-all" referring to materials possessing the same polymeric base, but different inorganic content to enable tissue growth and repair, proliferation of cells, and the formation of the ECM (extra cellular matrix). Furthermore, adding drug delivery carriers to coatings and scaffolds designed with such materials brings additional functionality by encapsulating active molecules, antibacterial agents, and growth factors. We discuss here materials and methods of their assembly from a general perspective together with their applications in various tissue engineering sub-areas: interstitial, connective, vascular, nervous, visceral and musculoskeletal tissues. The overall aims of this review are two-fold: (a) to describe the needs and opportunities in the field of bio-medicine, which should be useful for material scientists, and (b) to present capabilities and resources available in the area of materials, which should be of interest for biologists and medical doctors.
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Affiliation(s)
- Anatolii Abalymov
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | | | - Andre G. Skirtach
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
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6
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Funano S, Tanaka N, Tanaka Y. User‐friendly cell patterning methods using a polydimethylsiloxane mold with microchannels. Dev Growth Differ 2019; 62:167-176. [DOI: 10.1111/dgd.12637] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/17/2019] [Accepted: 10/22/2019] [Indexed: 12/11/2022]
Affiliation(s)
| | | | - Yo Tanaka
- Center for Biosystems Dynamics Research RIKEN Osaka Japan
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7
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Layer-by-layer assembly as a robust method to construct extracellular matrix mimic surfaces to modulate cell behavior. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.02.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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8
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Delgado JD, Surmaitis RL, Abou Shaheen S, Schlenoff JB. Engineering Thiolated Surfaces with Polyelectrolyte Multilayers. ACS APPLIED MATERIALS & INTERFACES 2019; 11:3524-3535. [PMID: 30620554 DOI: 10.1021/acsami.8b15514] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Interfaces bearing firmly attached thiol groups are useful for many applications requiring the versatile and facile chemistry of the -SH functionality. In this work, rugged ultrathin films were prepared on substrates using layer-by-layer assembly. The surface of these smooth films was capped with a co-polymer containing benzyl mercaptan units. The utility of this coating was illustrated by three applications. First, thiol-ene "click" chemistry was used to introduce the Arg-Gly-Asp (RGD) adhesive peptide sequence on a surface that otherwise resisted good adhesion of fibroblasts. This treatment promoted cell adhesion and spreading. Similar Michael addition chemistry was employed to attach poly(ethylene glycol) to the surface, which reduced fouling by (adhesion of) serum albumin. Finally, the affinity of gold for -SH was exploited by depositing a layer of gold nanoparticles on the thiolated surface or by evaporating a tenacious film of gold without using the classical chromium "primer" layer.
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Affiliation(s)
- Jose D Delgado
- Department of Chemistry and Biochemistry , The Florida State University , Tallahassee , Florida 32306 , United States
| | - Richard L Surmaitis
- Department of Chemistry and Biochemistry , The Florida State University , Tallahassee , Florida 32306 , United States
| | - Samir Abou Shaheen
- Department of Chemistry and Biochemistry , The Florida State University , Tallahassee , Florida 32306 , United States
| | - Joseph B Schlenoff
- Department of Chemistry and Biochemistry , The Florida State University , Tallahassee , Florida 32306 , United States
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9
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Fu Q, Ren H, Zheng C, Zhuang C, Wu T, Qin J, Wang Z, Chen Y, Qi N. Improved osteogenic differentiation of human dental pulp stem cells in a layer-by-layer-modified gelatin scaffold. J Biomater Appl 2018; 33:477-487. [PMID: 30217134 DOI: 10.1177/0885328218799162] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Dental pulp stem cell is a new type of mesenchymal stem cell that has a potential for tissue regeneration. Gelatin sponges are often used for hemostasis in dental surgery. In this study, we aimed to evaluate the dental pulp stem cells' proliferation and osteogenic differentiation in different layer-by-layer-modified gelatin sponge scaffolds including the G, G + P (gelatin sponge+ poly-l-lysine modification), G + M (gelatin sponge + mineralization modification), and G + M + P (gelatin sponge + mineralization modification + poly-l-lysine modification) groups in vitro and assessed them in vivo. The results showed that dental pulp stem cells had a great potential for osteogenic differentiation. In vitro, the G + M + P group not only enhanced the adhesion and proliferation of dental pulp stem cells but also facilitated their osteogenic differentiation. However, alkaline phosphatase activity was prohibited after modification. In vivo, both dental pulp stem cells and cells from nude mice grew well on the scaffold, and G + M and G + M + P groups could promote the mineralization deposit formation and the expression of osteocalcin in osteogenic differentiation of dental pulp stem cells. In conclusion, the combination of dental pulp stem cells and G + M + P scaffold has a great potential for bone tissue engineering.
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Affiliation(s)
- Qiang Fu
- 1 Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Huaijuan Ren
- 2 China Stem Cell Therapy Co. Ltd, Shanghai, China
| | - Chen Zheng
- 3 Hainan Medical University, Haikou, China
| | - Chao Zhuang
- 1 Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Tong Wu
- 3 Hainan Medical University, Haikou, China
| | - Jinyan Qin
- 2 China Stem Cell Therapy Co. Ltd, Shanghai, China
| | | | | | - Nianmin Qi
- 3 Hainan Medical University, Haikou, China
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10
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Lee JH, Park BS, Ghang HG, Song H, Yang SY. Nano-Protrusive Gold Nanoparticle-Hybridized Polymer Thin Film as a Sensitive, Multipatternable, and Antifouling Biosensor Platform. ACS APPLIED MATERIALS & INTERFACES 2018; 10:13397-13405. [PMID: 29616552 DOI: 10.1021/acsami.8b03681] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Hybrid films consisting of anisotropic octahedral gold nanoparticles (AuNPs) and polymers had their surfaces functionalized and were immobilized on surface plasmon resonance (SPR) sensors for biomolecule detection. Specifically, carboxylated octahedral AuNPs (C-Oh-AuNPs) and poly(allylamine hydrochloride) (PAH) were assembled as ultrathin films by using a layer-by-layer process. The ionic strength generated from the functional groups of C-Oh-AuNP and PAH influenced the composition, its surface morphology, and the reactivity of the film toward further chemical reactions such as the synthesis of spherical AuNPs (S-AuNPs). We were thus able to control the size and the structure of the C-Oh-AuNP and S-AuNPs converted to nano-raspberry-shaped particles. This hierarchical AuNP hybrid film exhibits much more sensitive and stable detection of biomolecules than regular flat chip systems, and this result may be due to the SPR of the AuNP at its surface being able to markedly enhance the local optical field of the chip. The micropatterning of the hybrid coating was also studied by using a soft lithographic patterning method. We, in particular, worked on creating multiplex patterns having different combinations of shapes and fluorescent colors. We expect our hybrid coating system with multicode biomolecular arrays to be used as a powerful platform for biosensor applications.
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Affiliation(s)
- Jeong-Hoon Lee
- Department of Polymer Science and Engineering , Chungnam National University , 99 Daehak-Ro , Yuseong-Gu, Daejeon 34134 , Republic of Korea
| | - Byung-Soo Park
- Department of Polymer Science and Engineering , Chungnam National University , 99 Daehak-Ro , Yuseong-Gu, Daejeon 34134 , Republic of Korea
| | - Hyun-Gu Ghang
- Department of Polymer Science and Engineering , Chungnam National University , 99 Daehak-Ro , Yuseong-Gu, Daejeon 34134 , Republic of Korea
| | - Hyunjoon Song
- Department of Chemistry , Korea Advanced Institute of Science and Technology , 291 Daehak-Ro , Yuseong-Gu, Daejeon 34141 , Republic of Korea
| | - Sung Yun Yang
- Department of Polymer Science and Engineering , Chungnam National University , 99 Daehak-Ro , Yuseong-Gu, Daejeon 34134 , Republic of Korea
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11
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Gand A, Tabuteau M, Chat C, Ladam G, Atmani H, Van Tassel PR, Pauthe E. Fibronectin-based multilayer thin films. Colloids Surf B Biointerfaces 2017; 156:313-319. [DOI: 10.1016/j.colsurfb.2017.05.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 04/10/2017] [Accepted: 05/08/2017] [Indexed: 12/13/2022]
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12
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Moehwald H, Brezesinski G. From Langmuir Monolayers to Multilayer Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10445-10458. [PMID: 27540629 DOI: 10.1021/acs.langmuir.6b02518] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This feature article is intended to describe a route from Langmuir monolayers as the most suitable and well-defined models to polyelectrolyte multilayers. The latter are structurally controlled not with angstrom but with nanometer precision; however, they are very modular with regard to building blocks and function and are robust, therefore promising many diverse applications. There have been many methods developed to structurally characterize Langmuir monolayers; therefore, they serve as models in membrane biophysics and materials science as well as in general physics as two-dimensional model systems. Many of these methods as well as ideas to control interfaces could be taken over to study polyelectrolyte multilayers with their extended internal interfaces. Finally, as an outlook we try to sketch various aspects to transit toward systems with higher structural hierarchy, enabling the coupling of different functions and arriving at responsive three-dimensional systems.
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Affiliation(s)
- Helmuth Moehwald
- Max-Planck-Institute of Colloids and Interfaces, Am Muehlenberg 1, 14476 Potsdam, Germany
| | - Gerald Brezesinski
- Max-Planck-Institute of Colloids and Interfaces, Am Muehlenberg 1, 14476 Potsdam, Germany
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13
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Controlling cell adhesion using layer-by-layer approaches for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 70:1163-1175. [PMID: 27772718 DOI: 10.1016/j.msec.2016.03.074] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/16/2016] [Accepted: 03/21/2016] [Indexed: 12/11/2022]
Abstract
Controlling the adhesion of mammalian and bacterial cells at the interfaces between synthetic materials and biological environments is a real challenge in the biomedical fields such as tissue engineering, antibacterial coating, implantable biomaterials and biosensors. The surface properties of materials are known to profoundly influence the adhesion processes. To mediate the adhesion processes, polymeric coatings have been used to functionalize surfaces to introduce diverse physicochemical properties. The polyelectrolyte multilayer films built via the layer-by-layer (LbL) method, introduced by Moehwald, Decher, and Lvov 20years ago, has led to significant developments ranging from the fundamental understanding of cellular processes to controlling cell adhesion for biomedical applications. In this review, we focus our attention on the modification of surface physicochemical properties, using the LbL approach, to construct films which can either promote or inhibit mammalian/bacterial cell adhesion. We also discuss the emerging field of multifunctional surfaces capable of responding to specific cellular activity but being inert to the others.
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14
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Colloidal particle assembly using micro-patterning onto morphology-controlled anti-fouling polyelectrolyte multilayer films. Macromol Res 2016. [DOI: 10.1007/s13233-016-4030-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Funano SI, Tanaka N, Tanaka Y. Vapor-based micro/nano-partitioning of fluoro-functional group immobilization for long-term stable cell patterning. RSC Adv 2016. [DOI: 10.1039/c6ra16906f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study developed a simple vapor-based immobilization method using a compound with fluoro-functional-group on a cell culture surface with micro/nano scale patterns.
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Affiliation(s)
| | | | - Yo Tanaka
- Quantitative Biology Center (QBiC)
- RIKEN
- Suita
- Japan
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16
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Tanaka N, Moriguchi H, Sato A, Kawai T, Shimba K, Jimbo Y, Tanaka Y. Microcasting with agarose gel via degassed polydimethylsiloxane molds for repellency-guided cell patterning. RSC Adv 2016. [DOI: 10.1039/c6ra11563b] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple method for micro-casting with agarose gel was developed. Vacuum pressure in a degassed PDMS elastomer acted as a driving force for introducing agarose solution into micro-channels. The repellency of agarose well-guided cell adhesion area.
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Affiliation(s)
| | | | - Asako Sato
- Quantitative Biology Center (QBiC)
- Suita
- Japan
| | - Takayuki Kawai
- Quantitative Biology Center (QBiC)
- Suita
- Japan
- Japan Science and Technology Agency
- PRESTO
| | - Kenta Shimba
- Department of Precision Engineering
- School of Engineering
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Yasuhiko Jimbo
- Department of Precision Engineering
- School of Engineering
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Yo Tanaka
- Quantitative Biology Center (QBiC)
- Suita
- Japan
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17
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Li Q, Zhang T, Pan Y, Ciacchi LC, Xu B, Wei G. AFM-based force spectroscopy for bioimaging and biosensing. RSC Adv 2016. [DOI: 10.1039/c5ra22841g] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
AFM-based force spectroscopy shows wide bio-related applications especially for bioimaging and biosensing.
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Affiliation(s)
- Qing Li
- Hybrid Materials Interfaces Group
- Faculty of Production Engineering
- University of Bremen
- D-28359 Bremen
- Germany
| | - Tong Zhang
- Single Molecule Study Laboratory
- College of Engineering and Nanoscale Science and Engineering Center
- University of Georgia
- Altens
- USA
| | - Yangang Pan
- Single Molecule Study Laboratory
- College of Engineering and Nanoscale Science and Engineering Center
- University of Georgia
- Altens
- USA
| | - Lucio Colombi Ciacchi
- Hybrid Materials Interfaces Group
- Faculty of Production Engineering
- University of Bremen
- D-28359 Bremen
- Germany
| | - Bingqian Xu
- Single Molecule Study Laboratory
- College of Engineering and Nanoscale Science and Engineering Center
- University of Georgia
- Altens
- USA
| | - Gang Wei
- Hybrid Materials Interfaces Group
- Faculty of Production Engineering
- University of Bremen
- D-28359 Bremen
- Germany
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18
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Daverey A, Brown KM, Kidambi S. Breast Cancer/Stromal Cells Coculture on Polyelectrolyte Films Emulates Tumor Stages and miRNA Profiles of Clinical Samples. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:9991-10001. [PMID: 26270351 DOI: 10.1021/acs.langmuir.5b02227] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this study, we demonstrate a method for controlling breast cancer cells adhesion on polyelectrolyte multilayer (PEM) films without the aid of adhesive proteins/ligands to study the role of tumor and stromal cell interaction on cancer biology. Numerous studies have explored engineering coculture of tumor and stromal cells predominantly using transwell coculture of stromal cells cultured onto coverslips that were subsequently added to tumor cell cultures. However, these systems imposed an artificial boundary that precluded cell-cell interactions. To our knowledge, this is the first demonstration of patterned coculture of tumor cells and stromal cells that captures the temporal changes in the miRNA signature as the breast tumor develops through various stages. In our study we used synthetic polymers, namely poly(diallyldimethylammonium chloride) (PDAC) and sulfonated poly(styrene) (SPS), as the polycation and polyanion, respectively, to build PEMs. Breast cancer cells attached and spread preferentially on SPS surfaces while stromal cells attached to both SPS and PDAC surfaces. SPS patterns were formed on PEM surfaces, by either capillary force lithography (CFL) of SPS onto PDAC surfaces or vice versa, to obtain patterns of breast cancer cells and patterned cocultures of breast cancer and stromal cells. In this study, we utilized cancer cells derived from two different tumor stages and two different stromal cells to effectively model a heterogeneous tumor microenvironment and emulate various tumor stages. The coculture model mimics the proliferative index (Ki67 expression) and tumor aggressiveness (HER-2 expression) akin to those observed in clinical tumor samples. We also demonstrated that our patterned coculture model captures the temporal changes in the miRNA-21 and miRNA-34 signature as the breast tumor develops through various stages. The engineered coculture platform lays groundwork toward precision medicine wherein patient-derived tumor cells can be incorporated within our in vitro models to identify potential pathways and drug treatment regimens for individual patients.
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Affiliation(s)
| | | | - Srivatsan Kidambi
- Mary and Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
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19
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Ozkumur AY, Goods BA, Love JC. Development of a High-Throughput Functional Screen Using Nanowell-Assisted Cell Patterning. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:4643-50. [PMID: 26121321 PMCID: PMC4754792 DOI: 10.1002/smll.201500674] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 04/30/2015] [Indexed: 05/04/2023]
Abstract
Living-cell-based screens can facilitate lead discovery of functional therapeutics of interest. A versatile and scalable method is reported that uses dense arrays of nanowells for imparting defined patterns on monolayers of cells. It is shown that this approach can coordinate a multi-component biological assay by designing and implementing a high-throughput, functional nanoliter-scale neutralization assay to identify neutralizing antibodies against HIV.
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Affiliation(s)
- Ayca Yalcin Ozkumur
- Electrical and Electronics Engineering Department, Bahcesehir University, Istanbul, Turkey
| | - Brittany A. Goods
- Department of Biological Engineering, Koch Institute for Integrative Cancer Research at MIT, Cambridge, Massachusetts 02139, USA
| | - J. Christopher Love
- Department of Chemical Engineering, Koch Institute for Integrative Cancer Research at MIT Cambridge, Massachusetts 02139, USA
- The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- The Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, United States
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20
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Noel S, Hachem A, Merhi Y, De Crescenzo G. Development of a Polyester Coating Combining Antithrombogenic and Cell Adhesive Properties: Influence of Sequence and Surface Density of Adhesion Peptides. Biomacromolecules 2015; 16:1682-94. [DOI: 10.1021/acs.biomac.5b00219] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Samantha Noel
- Department
of Chemical Engineering, Groupe de Recherche en Sciences et Technologies
Biomédicales, Bio-P2 Research Unit, École Polytechnique de Montréal, P.O. Box 6079, succ. Centre-Ville, Montréal (QC), Canada H3C 3A7
| | - Ahmed Hachem
- Université de Montréal, Montreal Heart Institute, 5000 Belanger Est, Montréal (QC), Canada H1T 1C8
| | - Yahye Merhi
- Université de Montréal, Montreal Heart Institute, 5000 Belanger Est, Montréal (QC), Canada H1T 1C8
| | - Gregory De Crescenzo
- Department
of Chemical Engineering, Groupe de Recherche en Sciences et Technologies
Biomédicales, Bio-P2 Research Unit, École Polytechnique de Montréal, P.O. Box 6079, succ. Centre-Ville, Montréal (QC), Canada H3C 3A7
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Azzam F, Moreau C, Cousin F, Menelle A, Bizot H, Cathala B. Reversible modification of structure and properties of cellulose nanofibril-based multilayered thin films induced by postassembly acid treatment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:2800-2807. [PMID: 25706711 DOI: 10.1021/acs.langmuir.5b00211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A postassembly acid-treatment consisting of an immersion in 5 mM HCl solution was applied to carboxylated cellulose nanofibrils (CNF)-poly(allylamine) hydrochloride (PAH) multilayered thin films. Our results show that the treatment did not affect the overall thickness of the films without any loss of the components. However, a modification of the surface morphology was observed, as well as the swelling behavior. The process was perfectly reversible since the original structure was recovered when the thin films were rinsed by ultrapure water. Moreover, a more pronounced antireflective character was detected for the treated films. The origin of these reversible modifications was discussed. Notably, the scattering length density (SLD) profiles of the films before and after treatment support the idea of a structural reorganization of the components within the film driven by the change of their charge densities induced by the acid treatment.
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Affiliation(s)
- Firas Azzam
- INRA, UR1268 Biopolymères Interactions Assemblages , 44316 Nantes, France
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22
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Cebeci FÇ, Schmidt DJ, Hammond PT. Multilayer transfer printing of electroactive thin film composites. ACS APPLIED MATERIALS & INTERFACES 2014; 6:20519-20523. [PMID: 25372508 DOI: 10.1021/am506120e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We demonstrate the high fidelity transfer printing of an electroactive polymer nanocomposite thin film onto a conductive electrode. Polyelectrolyte multilayer thin films of thickness ∼200 nm containing 68 vol % Prussian Blue nanoparticles are assembled on a UV-curable photopolymer stamp and transferred in their entirety onto ITO-coated glass creating ∼2.5 μm-wide line patterns with ∼1.25 μm spacing. AFM and SEM are used to investigate pattern fidelity and morphology, while cyclic voltammetry confirms the electroactive nature of the film and electrical connectivity with the electrode. The patterning strategy presented here could be used to pattern electroactive thin films containing a high density of nanoparticles onto individually addressable microelectrodes for a variety of applications ranging from biosensor arrays to flexible electronics.
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Affiliation(s)
- Fevzi Ç Cebeci
- Faculty of Engineering and Natural Sciences, Sabanci University , Istanbul 34956, Turkey
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Rodda AE, Meagher L, Nisbet DR, Forsythe JS. Specific control of cell–material interactions: Targeting cell receptors using ligand-functionalized polymer substrates. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2013.11.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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24
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Direct patterning of poly(acrylic acid) on polymer surfaces by ion beam lithography for the controlled adhesion of mammalian cells. Biotechnol Lett 2014; 36:2135-42. [DOI: 10.1007/s10529-014-1569-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 05/23/2014] [Indexed: 12/23/2022]
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25
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Pauthe E, Van Tassel PR. Layer-by-layer films as biomaterials: bioactivity and mechanics. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:1489-501. [DOI: 10.1080/09205063.2014.921096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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26
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Reducing the Foreign Body Reaction by Surface Modification with Collagen/Hyaluronic Acid Multilayered Films. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/718432] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Biological response against foreign implants often leads to encapsulation, possibly resulting in malfunction of implants devices. The aim of this study was to reduce the foreign body reaction by surface modification of biomaterials through layer-by-layer deposition of type I collagen (COL)/hyaluronic acid (HA) multilayer films. Polydimethylsiloxane (PDMS) samples were coated with alternative COL and HA layers with different layers. We found that the in vitro adhesion, proliferation, and activation of macrophage-like cells were greatly decreased by COL/HA multilayered deposition. The PDMS samples modified with 20 bilayers of COL/HA were implanted in rats for 3 weeks, and the thickness of encapsulation surrounding the samples was decreased by 29–57% compared to the control unmodified PDMS. This study demonstrates the potential of COL/HA multilayer films to reduce foreign body reaction.
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Jeon H, Simon CG, Kim G. A mini-review: Cell response to microscale, nanoscale, and hierarchical patterning of surface structure. J Biomed Mater Res B Appl Biomater 2014; 102:1580-94. [DOI: 10.1002/jbm.b.33158] [Citation(s) in RCA: 145] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 03/04/2014] [Accepted: 03/13/2014] [Indexed: 12/17/2022]
Affiliation(s)
- HoJun Jeon
- Department of Bio-Mechatronic Engineering; College of Biotechnology and Bioengineering, Sungkyunkwan University; Suwon South Korea
| | - Carl G. Simon
- Biosystems and Biomaterials Division; National Institute of Standards and Technology; Gaithersburg Maryland
| | - GeunHyung Kim
- Department of Bio-Mechatronic Engineering; College of Biotechnology and Bioengineering, Sungkyunkwan University; Suwon South Korea
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Rawtani D, Agrawal YK. Emerging Strategies and Applications of Layer-by-Layer Self-Assembly. Nanobiomedicine (Rij) 2014; 1:8. [PMID: 30023019 PMCID: PMC6029239 DOI: 10.5772/60009] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 11/21/2014] [Indexed: 11/27/2022] Open
Abstract
Layer-by-layer self-assembly is an approach to develop an ultrathin film on solid support by alternate exposure to positive and negative species with spontaneous deposition of the oppositely charged ions. This paper summarizes various approaches used for fabrication of layer-by-layer self-assembly as well as their utility to produce various devices. The layer-by-layer technique is basically used for formation of multilayer films. A variety of nanomaterials use it for the modification of films to enhance their resultant durability as well as strength. Studies have shown that many different types of materials can be used for fabrication of multilayers. Recently the layer-by-layer self-assembly technique has also been used for fabrication of gas sensors, hydrogen sensors and solar-based cells. Various methods, such as spin deposition, calcinations, and dry-transfer printing are being used for fabrication of thin films. In this review, the author summarizes the various interesting properties as well as fabrication strategies of layer-by-layer self-assembly.
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Affiliation(s)
- Deepak Rawtani
- Gujarat Forensic Sciences University, Sector 18A, Near Police Bhawan, Gandhinagar, Gujarat, India
| | - Yadvendra K. Agrawal
- Gujarat Forensic Sciences University, Sector 18A, Near Police Bhawan, Gandhinagar, Gujarat, India
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29
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The influence of substrate stiffness gradients on primary human dermal fibroblasts. Biomaterials 2013; 34:5070-7. [DOI: 10.1016/j.biomaterials.2013.03.075] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 03/23/2013] [Indexed: 11/23/2022]
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30
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Aoki PHB, Alessio P, Furini LN, Constantino CJL, Neves TTAT, Paulovich FV, de Oliveira MCF, Oliveira ON. Molecularly designed layer-by-layer (LbL) films to detect catechol using information visualization methods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:7542-7550. [PMID: 23356548 DOI: 10.1021/la304544d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The control of molecular architectures has been exploited in layer-by-layer (LbL) films deposited on Au interdigitated electrodes, thus forming an electronic tongue (e-tongue) system that reached an unprecedented high sensitivity (down to 10(-12) M) in detecting catechol. Such high sensitivity was made possible upon using units containing the enzyme tyrosinase, which interacted specifically with catechol, and by processing impedance spectroscopy data with information visualization methods. These latter methods, including the parallel coordinates technique, were also useful for identifying the major contributors to the high distinguishing ability toward catechol. Among several film architectures tested, the most efficient had a tyrosinase layer deposited atop LbL films of alternating layers of dioctadecyldimethylammonium bromide (DODAB) and 1,2-dipalmitoyl-sn-3-glycero-fosfo-rac-(1-glycerol) (DPPG), viz., (DODAB/DPPG)5/DODAB/Tyr. The latter represents a more suitable medium for immobilizing tyrosinase when compared to conventional polyelectrolytes. Furthermore, the distinction was more effective at low frequencies where double-layer effects on the film/liquid sample dominate the electrical response. Because the optimization of film architectures based on information visualization is completely generic, the approach presented here may be extended to designing architectures for other types of applications in addition to sensing and biosensing.
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Affiliation(s)
- Pedro H B Aoki
- Faculdade de Ciências e Tecnologia, UNESP, Presidente Prudente, SP, Brazil
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31
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Chondrocyte Behavior on Micropatterns Fabricated Using Layer-by-Layer Lift-Off: Morphological Analysis. J Med Eng 2013; 2013:560328. [PMID: 27006918 PMCID: PMC4782616 DOI: 10.1155/2013/560328] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Revised: 04/24/2013] [Accepted: 04/25/2013] [Indexed: 11/23/2022] Open
Abstract
Cell patterning has emerged as an elegant tool in developing cellular arrays, bioreactors, biosensors, and lab-on-chip devices and for use in engineering neotissue for repair or regeneration. In this study, micropatterned surfaces were created using the layer-by-layer lift-off (LbL-LO) method for analyzing canine chondrocytes response to patterned substrates. Five materials were chosen based on our previous studies. These included: poly(dimethyldiallylammonium chloride) (PDDA), poly(ethyleneimine) (PEI), poly(styrene sulfonate) (PSS), collagen, and chondroitin sulfate (CS). The substrates were patterned with these five different materials, in five and ten bilayers, resulting in the following multilayer nanofilm architectures: (PSS/PDDA)5, (PSS/PDDA)10; (CS/PEI)4/CS, (CS/PEI)9/CS; (PSS/PEI)5, (PSS/PEI)10; (PSS/Collagen)5, (PSS/Collagen)10; (PSS/PEI)4/PSS, (PSS/PEI)9/PSS. Cell characterization studies were used to assess the viability, longevity, and cellular response to the configured patterned multilayer architectures. The cumulative cell characterization data suggests that cell viability, longevity, and functionality were enhanced on micropatterned PEI, PSS, collagen, and CS multilayer nanofilms suggesting their possible use in biomedical applications.
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Gribova V, Gauthier-Rouvière C, Albigès-Rizo C, Auzely-Velty R, Picart C. Effect of RGD functionalization and stiffness modulation of polyelectrolyte multilayer films on muscle cell differentiation. Acta Biomater 2013; 9:6468-80. [PMID: 23261924 DOI: 10.1016/j.actbio.2012.12.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 12/04/2012] [Accepted: 12/11/2012] [Indexed: 02/06/2023]
Abstract
Skeletal muscle tissue engineering holds promise for the replacement of muscle damaged by injury and for the treatment of muscle diseases. Although arginylglycylaspartic acid (RGD) substrates have been widely explored in tissue engineering, there have been no studies aimed at investigating the combined effects of RGD nanoscale presentation and matrix stiffness on myogenesis. In the present work we use polyelectrolyte multilayer films made of poly(L-lysine) (PLL) and poly(L-glutamic) acid (PGA) as substrates of tunable stiffness that can be functionalized by a RGD adhesive peptide to investigate important events in myogenesis, including adhesion, migration, proliferation and differentiation. C2C12 myoblasts were used as cellular models. RGD presentation on soft films and increasing film stiffness could both induce cell adhesion, but the integrins involved in adhesion were different in the case of soft and stiff films. Soft films with RGD peptide appeared to be the most appropriate substrate for myogenic differentiation, while the stiff PLL/PGA films induced significant cell migration and proliferation and inhibited myogenic differentiation. ROCK kinase was found to be involved in the myoblast response to the different films. Indeed, its inhibition was sufficient to rescue differentiation on stiff films, but no significant changes were observed on stiff films with the RGD peptide. These results suggest that different signaling pathways may be activated depending on the mechanical and biochemical properties of multilayer films. This study emphasizes the advantage of soft PLL/PGA films presenting the RGD peptide in terms of myogenic differentiation. This soft RGD-presenting film may be further used as a coating of various polymeric scaffolds for muscle tissue engineering.
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33
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Local control of protein binding and cell adhesion by patterned organic thin films. Anal Bioanal Chem 2013; 405:3673-91. [DOI: 10.1007/s00216-013-6748-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 01/08/2013] [Accepted: 01/14/2013] [Indexed: 12/18/2022]
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34
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Tocce E, Liliensiek S, Broderick A, Jiang Y, Murphy K, Murphy C, Lynn D, Nealey P. The influence of biomimetic topographical features and the extracellular matrix peptide RGD on human corneal epithelial contact guidance. Acta Biomater 2013; 9:5040-51. [PMID: 23069317 DOI: 10.1016/j.actbio.2012.10.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 09/18/2012] [Accepted: 10/05/2012] [Indexed: 10/27/2022]
Abstract
A major focus in the field of tissue engineering is the regulation of essential cell behaviors through biophysical and biochemical cues from the local extracellular environment. The impact of nanotopographical cues on human corneal epithelial cell (HCEC) contact guidance, proliferation, migration and adhesion have previously been demonstrated. In the current report we have expanded our study of HCEC responses to include both biophysical and controlled biochemical extracellular cues. By exploiting methods for the layer-by-layer coating of substrates with reactive poly(ethylene imine)/poly(2-vinyl-4,4-dimethylazlactone)-based multilayer thin films we have incorporated a single adhesion peptide motif, Arg-Gly-Asp (RGD), on topographically patterned substrates. This strategy eliminates protein adsorption onto the surface, thus decoupling the effects of the HCEC response to topographical cues from adsorbed proteins and soluble media proteins. The direction of cell alignment was dependent on the scale of the topographical cues and, to less of an extent, the culture medium. In EpiLife® medium cell alignment to unmodified-NOA81 topographical features, which allowed protein adsorption, differed significantly from cell alignment on RGD-modified features. These results demonstrate that the surface chemical composition significantly affects how HCECs respond to topographical cues. In summary, we have demonstrated modulation of the HCEC response to environmental cues through critical substrate and soluble parameters.
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35
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Huang X, Lin N, Hang R, Wang X, Zhang X, Tang B. Modulating the behaviors of C3A cells via surface charges of polyelectrolyte multilayers. Carbohydr Polym 2012; 92:1064-70. [PMID: 23399129 DOI: 10.1016/j.carbpol.2012.10.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 09/05/2012] [Accepted: 10/24/2012] [Indexed: 02/03/2023]
Abstract
The purpose of this study was to evaluate in vitro how the modulating surface charges of materials influenced the behaviors of hepatocytes. Cells of a human hepatocyte cell line, C3A, which have been used in a clinically tested bioartificial liver, were conducted as cell models. Polyelectrolyte multilayers (PEMs) of poly-L-lysine and alginate biopolymers were fabricated and then the zeta potential was assessed. Protein adsorption study showed that fibrinogen deposition could be modulated via tuning the terminal layer and the surface charges of PEMs. Furthermore, through observing the cellular morphology, viability, functional protein analysis and gene expression, we found that the behavior of C3A cells could be modulated via tuning of surface charges on PEMs, which was different from that via grafting functional groups on PEMs. It suggested that the PEMs with different charges could be used in vitro to manipulate cell behaviors to improve upon the design of tissue engineering.
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Affiliation(s)
- Xiaobo Huang
- Institute of Surface Engineering, Taiyuan University of Technology, 79 Yingze Road, Taiyuan 030024, PR China
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36
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Jang KM, An YJ, Park H, Kim YG, Yang SY. Control of the surface properties of micro-fluidic devices for external power-free biochip application. Macromol Res 2012. [DOI: 10.1007/s13233-013-1070-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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37
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Palamà IE, D'Amone S, Coluccia AML, Gigli G. Micropatterned polyelectrolyte nanofilms promote alignment and myogenic differentiation of C2C12 cells in standard growth media. Biotechnol Bioeng 2012; 110:586-96. [PMID: 22886558 DOI: 10.1002/bit.24626] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Revised: 07/20/2012] [Accepted: 07/23/2012] [Indexed: 12/19/2022]
Abstract
Alignment of skeletal myoblasts is considered a critical step during myotube formation. The C2C12 cell line is frequently used as a model of skeletal muscle differentiation that can be induced by lowering the serum concentration in standard culture flasks. In order to mimic the striated architectures of skeletal muscles in vitro, micro-patterning techniques and surface engineering have been proven as useful approaches for promoting elongation and alignment of C2C12 myoblasts, thereby enhancing the outgrowth of multi-nucleated myotubes upon switching from growth media (GM) to differentiative media (DM). Herein, a layer-by-layer (LbL) polyelectrolyte multilayer deposition was combined with a micro-molding in capillaries (MIMIC) method to simultaneously provide biochemical and geometrical instructive cues that induced the formation of tightly apposed and parallel arrays of differentiating myotubes from C2C12 cells maintained in GM media for 15 days. This study focuses on two different types of patterned/self-assembled nanofilms based on alternated layers of poly (allylamine hydrochloride) (PAH)/poly(sodium 4-styrene-sulfonate) (PSS) as biocompatible but not biodegradable polymeric structures, or poly-L-arginine sulfate salt (pARG)/dextran sulfate sodium salt (DXS) as both biocompatible and biodegradable surfaces. The influence of these microstructures as well as of the nanofilm composition on C2C12 skeletal muscle cells' differentiation and viability was evaluated and quantified, pointing to give a reference for skeletal muscle regenerative potential in culture conditions that do not promote it. At this regard, our results validate PEM microstructured devices, to a greater extent for (PAH/PSS)₅-coated microgrooves, as biocompatible and innovative tools for tissue engineering applications and molecular dissection of events controlling C2C12 skeletal muscle regeneration without switching to their optimal differentiative culture media in vitro.
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Affiliation(s)
- Ilaria E Palamà
- NNL, CNR-Institute of Nanoscience, Via Arnesano, Lecce 73100, Italy.
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38
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Gribova V, Auzely-Velty R, Picart C. Polyelectrolyte Multilayer Assemblies on Materials Surfaces: From Cell Adhesion to Tissue Engineering. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2012; 24:854-869. [PMID: 25076811 PMCID: PMC4112380 DOI: 10.1021/cm2032459] [Citation(s) in RCA: 231] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Controlling the bulk and surface properties of materials is a real challenge for bioengineers working in the fields of biomaterials, tissue engineering and biophysics. The layer-by-layer (LbL) deposition method, introduced 20 years ago, consists in the alternate adsorption of polyelectrolytes that self-organize on the material's surface, leading to the formation of polyelectrolyte multilayer (PEM) films.1 Because of its simplicity and versatility, the procedure has led to considerable developments of biological applications within the past 5 years. In this review, we focus our attention on the design of PEM films as surface coatings for applications in the field of physical properties that have emerged as being key points in relation to biological processes. The numerous possibilities for adjusting the chemical, physical, and mechanical properties of PEM films have fostered studies on the influence of these parameters on cellular behaviors. Importantly, PEM have emerged as a powerful tool for the immobilization of biomolecules with preserved bioactivity.
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Affiliation(s)
- Varvara Gribova
- LMGP-MINATEC, Grenoble Institute of Technology, 3 Parvis Louis Néel, 38016 Grenoble, France
- Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), affiliated with University Joseph Fourier, and member of the Institut de Chimie Moléculaire de Grenoble, France
| | - Rachel Auzely-Velty
- Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), affiliated with University Joseph Fourier, and member of the Institut de Chimie Moléculaire de Grenoble, France
| | - Catherine Picart
- LMGP-MINATEC, Grenoble Institute of Technology, 3 Parvis Louis Néel, 38016 Grenoble, France
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Gensel J, Borke T, Pérez NP, Fery A, Andreeva DV, Betthausen E, Müller AHE, Möhwald H, Skorb EV. Cavitation engineered 3D sponge networks and their application in active surface construction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:985-9. [PMID: 22311436 DOI: 10.1002/adma.201103786] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Indexed: 05/08/2023]
Abstract
The design of the 3D architecture surfaces with both space- and time-dependent functionality (cell attraction, pH-trigged self-cleaning, antiseptic/disinfection) is in the focus. The innovative story includes: sonochemical surface activation, formation of feedback surface component (pH-responsible micelles), proof of responsive activity (time resolved cell adhesion and bacteria deactivation) and space adhesion selectivity (surface patterning).
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Affiliation(s)
- Julia Gensel
- Physical Chemistry II, University of Bayreuth, Universitätstrasse 30, Bayreuth, Germany
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40
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Tocce EJ, Broderick AH, Murphy KC, Liliensiek SJ, Murphy CJ, Lynn DM, Nealey PF. Functionalization of reactive polymer multilayers with RGD and an antifouling motif: RGD density provides control over human corneal epithelial cell-substrate interactions. J Biomed Mater Res A 2011; 100:84-93. [PMID: 21972074 DOI: 10.1002/jbm.a.33233] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Revised: 08/04/2011] [Accepted: 08/19/2011] [Indexed: 01/29/2023]
Abstract
Our study demonstrates that substrates fabricated using a "reactive" layer-by-layer approach promote well-defined cell-substrate interactions of human corneal epithelial cells. Specifically, crosslinked and amine-reactive polymer multilayers were produced by alternating "reactive" deposition of an azlactone-functionalized polymer [poly(2-vinyl-4,4-dimethylazlactone)] (PVDMA) and a primary amine-containing polymer [branched poly(ethylene imine)] (PEI). Advantages of our system include a 5- to 30-fold decrease in deposition time compared to traditional polyelectrolyte films and direct modification of the films with peptides. Our films react with mixtures of an adhesion-promoting peptide containing Arg-Gly-Asp (RGD) and the small molecule D-glucamine, a chemical motif which is nonfouling. Resulting surfaces prevent protein adsorption and promote cell attachment through specific peptide interactions. The specificity of cell attachment via immobilized RGD sequences was verified using both a scrambled RDG peptide control as well as soluble-RGD competitive assays. Films were functionalized with monotonically increasing surface densities of RGD which resulted in both increased cell attachment and the promotion of a tri-phasic proliferative response of a human corneal epithelial cell line (hTCEpi). The ability to treat PEI/PVDMA films with peptides for controlled cell-substrate interactions enables the use of these films in a wide range of biological applications.
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Affiliation(s)
- Elizabeth J Tocce
- Department of Chemical and Biological Engineering, 1415 Engineering Dr., University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
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41
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Costa RR, Custódio CA, Arias FJ, Rodríguez-Cabello JC, Mano JF. Layer-by-layer assembly of chitosan and recombinant biopolymers into biomimetic coatings with multiple stimuli-responsive properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:2640-2649. [PMID: 21809443 DOI: 10.1002/smll.201100875] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Indexed: 05/31/2023]
Abstract
In this work, biomimetic smart thin coatings using chitosan and a recombinant elastin-like recombinamer (ELR) containing the cell attachment sequence arginine-glycine-(aspartic acid) (RGD) are fabricated through a layer-by-layer approach. The synthetic polymer is characterized for its molecular mass and composition using mass spectroscopy and peptide sequencing. The adsorption of each polymeric layer is followed in situ at room temperature and pH 5.5 using a quartz-crystal microbalance with dissipation monitoring, showing that both polymers can be successfully combined to conceive nanostructured, multilayered coatings. The smart properties of the coatings are tested for their wettability by contact angle (CA) measurements as a function of external stimuli, namely temperature, pH, and ionic strength. Wettability transitions are observed from a moderate hydrophobic surface (CAs approximately from 62° to 71°) to an extremely wettable one (CA considered as 0°) as the temperature, pH, and ionic strength are raised above 50 °C, 11, and 1.25 M, respectively. Atomic force microscopy is performed at pH 7.4 and pH 11 to assess the coating topography. In the latter, the results reveal the formation of large and compact structures upon the aggregation of ELRs at the surface, which increase water affinity. Cell adhesion tests are conducted using a SaOs-2 cell line. Enhanced cell adhesion is observed in the coatings, as compared to a coating with a chitosan-ending film and a scrambled arginine-(aspartic acid)-glycine (RDG) biopolymer. The results suggest that such films could be used in the future as smart biomimetic coatings of biomaterials for different biomedical applications, including those in tissue engineering or in controlled delivery systems.
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Affiliation(s)
- Rui R Costa
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, AvePark, Zona Industrial da Gandra, São Cláudio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal.
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Bellis SL. Advantages of RGD peptides for directing cell association with biomaterials. Biomaterials 2011; 32:4205-10. [PMID: 21515168 DOI: 10.1016/j.biomaterials.2011.02.029] [Citation(s) in RCA: 479] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Accepted: 02/12/2011] [Indexed: 12/14/2022]
Abstract
Despite many years of in vitro research confirming the effectiveness of RGD in promoting cell attachment to a wide variety of biomaterials, animal studies evaluating tissue responses to implanted RGD-functionalized substrates have yielded more variable results. The goals of this report are to present some of the reasons why cell culture studies may not always reliably predict in vivo responses, and more importantly, to highlight potential applications that may benefit from the use of RGD peptides.
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Affiliation(s)
- Susan L Bellis
- Department of Physiology and Biophysics, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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Osteoconductive protamine-based polyelectrolyte multilayer functionalized surfaces. Biomaterials 2011; 32:7491-502. [PMID: 21764442 DOI: 10.1016/j.biomaterials.2011.06.032] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Accepted: 06/14/2011] [Indexed: 12/16/2022]
Abstract
The integration of orthopedic implants with host bone presents a major challenge in joint arthroplasty, spinal fusion and tumor reconstruction. The cellular microenvironment can be programmed via implant surface functionalization allowing direct modulation of osteoblast adhesion, proliferation, and differentiation at the implant--bone interface. The development of layer-by-layer assembled polyelectrolyte multilayer (PEM) architectures has greatly expanded our ability to fabricate intricate nanometer to micron scale thin film coatings that conform to complex implant geometries. The in vivo therapeutic efficacy of thin PEM implant coatings for numerous biomedical applications has previously been reported. We have fabricated protamine-based PEM thin films that support the long-term proliferation and differentiation of pre-osteoblast cells on non-cross-linked film-coated surfaces. These hydrophilic PEM functionalized surfaces with nanometer-scale roughness facilitated increased deposition of calcified matrix by osteoblasts in vitro, and thus offer the potential to enhance implant integration with host bone. The coatings can make an immediate impact in the osteogenic culture of stem cells and assessment of the osteogenic potential of new therapeutic factors.
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He Q, Sévérac F, Hajjoul H, Viero Y, Bancaud A. Directed assembly of nanoparticles along predictable large-scale patterns using micromolded hydrogels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:6598-6605. [PMID: 21561079 DOI: 10.1021/la200064n] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We present a new technology to organize microparticles and nanoparticles along micropatterns of variable complexity over centimeter-squared surfaces. This technology relies on the fabrication of textured hydrogels, which serve as templates for directed assembly after the deposition of a droplet of colloids on their surfaces. We show that directed assembly occurs spontaneously during water evaporation, and we demonstrate the efficiency of this mechanism for a variety of organic and inorganic nano-objects. The dynamics of this process is also uncovered by light microscopy, showing that the patterns imprinted on the gel determine fluid flow during water evaporation and allow for directed movements toward predictable positions. We finally propose different methods to transfer assembled particles from hydrogels to glass, silicon, or metallic surfaces, and we show that the assembled and transferred particles retain their surface properties for bioassays. Beyond the originality of this spontaneous assembly mechanism, it constitutes an attractive technology for nano-object large-scale integration, which does not require costly environmental control equipment.
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Affiliation(s)
- Qihao He
- CNRS, LAAS, 7 Avenue du Colonel Roche, F-31077 Toulouse, Cedex 4, France
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45
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Detzel CJ, Larkin AL, Rajagopalan P. Polyelectrolyte multilayers in tissue engineering. TISSUE ENGINEERING. PART B, REVIEWS 2011; 17:101-13. [PMID: 21210759 PMCID: PMC3062467 DOI: 10.1089/ten.teb.2010.0548] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Accepted: 01/03/2011] [Indexed: 11/13/2022]
Abstract
The layer-by-layer assembly of sequentially adsorbed, alternating polyelectrolytes has become increasingly important over the past two decades. The ease and versatility in assembling polyelectrolyte multilayers (PEMs) has resulted in numerous wide ranging applications of these materials. More recently, PEMs are being used in biological applications ranging from biomaterials, tissue engineering, regenerative medicine, and drug delivery. The ability to manipulate the chemical, physical, surface, and topographical properties of these multilayer architectures by simply changing the pH, ionic strength, thickness, and postassembly modifications render them highly suitable to probe the effects of external stimuli on cellular responsiveness. In the field of regenerative medicine, the ability to sequester growth factors and to tether peptides to PEMs has been exploited to direct the lineage of progenitor cells and to subsequently maintain a desired phenotype. Additional novel applications include the use of PEMs in the assembly of three-dimensional layered architectures and as coatings for individual cells to deliver tunable payloads of drugs or bioactive molecules. This review focuses on literature related to the modulation of chemical and physical properties of PEMs for tissue engineering applications and recent research efforts in maintaining and directing cellular phenotype in stem cell differentiation.
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Affiliation(s)
- Christopher J. Detzel
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
| | - Adam L. Larkin
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
| | - Padmavathy Rajagopalan
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
- ICTAS Center for Systems Biology of Engineered Tissues, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
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46
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Srivastava GK, Martín L, Singh AK, Fernandez-Bueno I, Gayoso MJ, Garcia-Gutierrez MT, Girotti A, Alonso M, Rodríguez-Cabello JC, Pastor JC. Elastin-like recombinamers as substrates for retinal pigment epithelial cell growth. J Biomed Mater Res A 2011; 97:243-50. [DOI: 10.1002/jbm.a.33050] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 12/17/2010] [Accepted: 01/10/2011] [Indexed: 12/19/2022]
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Ko YH, Kim YH, Park J, Nam KT, Park JH, Yoo PJ. Electric-Field-Assisted Layer-by-Layer Assembly of Weakly Charged Polyelectrolyte Multilayers. Macromolecules 2011. [DOI: 10.1021/ma102112a] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Young Hoon Ko
- School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Young Hun Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Juhyun Park
- School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul 151-756, Republic of Korea
| | - Ki Tae Nam
- Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Republic of Korea
| | - Jong Hyeok Park
- School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Pil J. Yoo
- School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, Republic of Korea
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48
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Larkin AL, Davis RM, Rajagopalan P. Biocompatible, detachable, and free-standing polyelectrolyte multilayer films. Biomacromolecules 2011; 11:2788-96. [PMID: 20815399 DOI: 10.1021/bm100867h] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Self-assembled polyelectrolyte multilayers have gained tremendous popularity over the past decade and have been incorporated in diverse applications. However, the fabrication of detachable and free-standing polyelectrolyte multilayers (PEMs) has proven to be difficult. We report the design of detachable, free-standing, and biocompatible PEMs comprised of hyaluronic acid (anionic PE) and chitosan (cationic PE). These PEMs can be detached from an underlying inert substrate without any postprocessing steps. Our approach enables the fabrication of detachable PEMs from a wide range of polyelectrolytes. Cross-linked PEMs exhibited greater than 95% weight retention when maintained in phosphate buffered saline at 37 °C over a seven day period. The PEM thickness was approximately 3 μm for dried films and increased 2-fold under hydration. A unique feature of the detachable, free-standing PEMs is their optical transparency in the 400-900 nm range under hydrated conditions. The Young's modulus of the cross-linked films ranged from 300-400 MPa, rendering these detachable free-standing multilayers ideal for biomaterial applications. BALB/c 3T3 fibroblasts adhered on the PEMs and colonized the entire surface over a six day period. The cellular responses, as well as the physical properties, demonstrate that the detachable PEM films exhibit tremendous potential for applications in biomaterials and tissue engineering.
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Affiliation(s)
- Adam L Larkin
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
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Park JS, Cho SM, Kim WJ, Park J, Yoo PJ. Fabrication of graphene thin films based on layer-by-layer self-assembly of functionalized graphene nanosheets. ACS APPLIED MATERIALS & INTERFACES 2011; 3:360-368. [PMID: 21207942 DOI: 10.1021/am100977p] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In this study, we present a facile means of fabricating graphene thin films via layer-by-layer (LbL) assembly of charged graphene nanosheets (GS) based on electrostatic interactions. To this end, graphite oxide (GO) obtained from graphite powder using Hummers method is chemically reduced to carboxylic acid-functionalized GS and amine-functionalized GS to perform an alternate LbL deposition between oppositely charged GSs. Specifically, for successful preparation of positively charged GS, GOs are treated with an intermediate acyl-chlorination reaction by thionyl chloride and a subsequent amidation reaction in pyridine, whereby a stable GO dispersibility can be maintained within the polar reaction solvent. As a result, without the aid of additional hybridization with charged nanomaterials or polyelectrolytes, the oppositely charged graphene nanosheets can be electrostatically assembled to form graphene thin films in an aqueous environment, while obtaining controllability over film thickness and transparency. Finally, the electrical property of the assembled graphene thin films can be enhanced through a thermal treatment process. Notably, the introduction of chloride functions during the acyl-chlorination reaction provides the p-doping effect for the assembled graphene thin films, yielding a sheet resistance of 1.4 kΩ/sq with a light transmittance of 80% after thermal treatment. Since the proposed method allows for large-scale production as well as elaborate manipulation of the physical properties of the graphene thin films, it can be potentially utilized in various applications, such as transparent electrodes, flexible displays and highly sensitive biosensors.
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Affiliation(s)
- Je Seob Park
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, Republic of Korea
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