Download or read book Evaluation of Layer by layer Assembly of Polyelectrolyte Multilayers in Cell Patterning Technology written by Aleksandr John White and published by . This book was released on 2002 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of Polyelectrolyte Multilayers for Photolithographic Patterning of Diverse Mammalian Cell Types in Serum Free Medium written by Vipra Dhir and published by . This book was released on 2008 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integration of living cells with novel microdevices requires the development of innovative technologies for manipulating cells. Chemical surface patterning has been proven as an effective method to control the attachment and growth of diverse cell populations. Patterning polyelectrolyte multilayers through the combination of layer-by-layer self-assembly technique and photolithography offers a simple, versatile and silicon compatible approach that overcomes chemical surface patterning limitations, such as short-term stability and low protein adsorption resistance. In this study, direct photolithographic patterning of poly(acrlic acid)(PAA)/poly(acryl amide (PAAm) and PAA/poly(ally amine hydrochloride) (PAH) polyelectrolyte multilayers was developed to pattern mammalian neuronal, skeletal and cardiac muscle cells. For all studied cell types, PAA/PAAm multilayers behaved as a negative surface, completely preventing cell attachment. In contrast, PAA/PAH multilayers have shown a cell-selective behavior, promoting the attachment and growth of neuronal cells (embryonic rat hippocampal and NG108-15 cells) to a greater extent, while providing a little attachment for neonatal rat cardiac and skeletal muscle cells (C2C12 cell line). PAA/PAAm multilayer cellular patterns have also shown a remarkable protein adsorption resistance. Protein adsorption protocols commonly used for surface treatment in cell culture did not compromise the cell attachment inhibiting feature of the PAA/PAAm multilayer patterns. The combination of polyelectrolyte multilayer patterns with different adsorbed proteins could expand the applicability of this technology to cell types that require specific proteins either on the surface or in the medium for attachment or differentiation, and could not be patterned using the traditional methods.
Download or read book Engineering the Microfabrication of Layer by layer Polyelectrolyte Assembly written by Sarah Louise Clark and published by . This book was released on 1999 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polyelectrolyte Multilayers an Investigation Into Their Assembly and Behavior with Diffraction Based Sensing written by Hannah Howard and published by . This book was released on 2015 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polyelectrolyte Multilayer Coatings for Conductive Nanomaterials Patterning and Anti wrinkling Applications written by Troy Richard Hendricks and published by . This book was released on 2008 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Layer by Layer Films for Biomedical Applications written by Catherine Picart and published by John Wiley & Sons. This book was released on 2015-01-30 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: The layer-by-layer (LbL) deposition technique is a versatile approach for preparing nanoscale multimaterial films: the fabrication of multicomposite films by the LbL procedure allows the combination of literally hundreds of different materials with nanometer thickness in a single device to obtain novel or superior performance. In the last 15 years the LbL technique has seen considerable developments and has now reached a point where it is beginning to find applications in bioengineering and biomedical engineering. The book gives a thorough overview of applications of the LbL technique in the context of bioengineering and biomedical engineering where the last years have witnessed tremendous progress. The first part familiarizes the reader with the specifics of cell-film interactions that need to be taken into account for successful application of the LbL method in biological environments. The second part focuses on LbL-derived small drug delivery systems and antibacterial agents, and the third part covers nano- and microcapsules as drug carriers and biosensors. The fourth and last part focuses on larger-scale biomedical applications of the LbL method such as engineered tissues and implant coatings.
Download or read book Layer by Layer Directly Assembly of Polyelectrolyte Multilayers with Foaming Structures written by Lihua Xu and published by . This book was released on 2015 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades, dynamic Layer-by-Layer (LbL) assembly of multilayer thin films has been widely recognized for many reasons, especially for its versatile functionality and ease of fabrication. Films can be fabricated towards huge amounts of materials, such as polyelectrolytes, organic components, polymeric microgels, etc. Through the long history of LbL assembly research, few papers proposed ideas of making porous films or foamed films directly or indirectly, as foamed material contained plenty of pores, which could be used in insulation materials and fast food-packages. In several papers, the step of acid treatment aimed for irreversible structure transformation applied into films fabricated by the LbL assembly method. This indirect method makes procedures more complex, so direct fabrication with LbL is necessary. However, time-consuming problems and challenges from external environmental factors still limits the development of this technique. In this thesis, a facile fabrication of porous films through the LbL assembly method was introduced. Strong polyelectrolyte, polycation poly(diallyldimethylammonium-chloride) (PolyDADMAC) and polyanion poly(styrene sulfonate acid) (PSSA) are utilized as the original material. And PolyDADMAC was slightly modified by sodium hydroxide (NaOH) and carbon dioxide (CO2) in order to get the bicarbonate structure at the side groups along the chain of the polyelectrolyte. In order to deeply study the films, some other particles, such as the surfactant brij-76 and RDS laponite were added into certain solutions for comparison. Films were achieved by alternately putting clean glass slides into the polycation and polyanion solutions with the rinsing step in between. 20-bilayer film can be achieved after repeating the procedures above 20 times. The principle is that the bicarbonate functional group will react with the hydrogen ions for the sake of letting the gas carbon dioxide out and then make the porous structure throughout the film. The morphology of the films measured by an atomic force microscope (AFM) and a scanning electron microscope (SEM) shows that porous structures are obvious through the whole film when no sodium bicarbonate (NaHCO3) is added into the anion solution. The results help to solve the problem of directly making the foaming films as well as simplifying the procedures.
Download or read book Multilayer Thin Films written by Gero Decher and published by John Wiley & Sons. This book was released on 2012-06-11 with total page 1157 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second, comprehensive edition of the pioneering book in this fi eld has been completely revised and extended, now stretching to two volumes. The result is a comprehensive summary of layer-by-layer assembled, truly hybrid nanomaterials and thin fi lms, covering organic, inorganic, colloidal, macromolecular, and biological components, as well as the assembly of nanoscale fi lms derived from them on surfaces. These two volumes are essential for anyone working in the field, as well as scientists and researchers active in materials development, who needs the key knowledge provided herein for linking the field of molecular self-assembly with the bio- and materials sciences.
Download or read book Synthetic Biodegradable Polymer Scaffolds written by Anthony Atala and published by Springer Science & Business Media. This book was released on 1997-12-01 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This body of work represents the first volume of a book series covering the field of tissue engineering. Tissue engineering, which refers to a category of therapeutic or diagnostic products and processes which are based upon a combination of living cells and biomaterials, was defined as a field only a few years ago (1988). Tissue engineering is an inherently interdisciplinary field, combining bioengineering, life sciences and clinical sciences. The definition of this area of work as the field of tissue engineering brought together scientists from multiple backgrounds who already were working toward the achievement of similar goals. Why a book series exclusively devoted to tissue engineering? The field of tissue engineering is heterogeneous. The cells involved in tissue engineering can be autologous, allogeneic or xenogeneic. The biomaterials utilized can be either naturally occurring, synthetic or a combination of both. The appli cation of the technology can be either for acute or permanent purposes. An attempt to cover the field of tissue engineering in a single volume, with the degree of detail necessary for individuals with different scientific back grounds and disciplines, would be a difficult task to accomplish, particularly when this field is just emerging and changing rapidly. Therefore, addressing different technologies within the field of tissue engineering, in a comprehen sive manner, is the main mission of this series of volumes. A stellar group of scientists has been brought together to form the editorial board of the series.
Download or read book Macromolecules Synthesis Order and Advanced Properties written by and published by Springer. This book was released on 1992-01-30 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. B. Keszler, J.P. Kennedy, Akron, OH, USA Synthesis of High Molecular Weight Poly (Beta-Pinene) 2. Y. Chujo, T. Saegusa, Kyoto, Japan OrganicPolymer Hybrids with Silica Gel by Means of the Sol-Gel Method 3. A. Halperin, Mainz, FRG, M. Tirrell, T.P. Lodge, Minnea- polis, MN, USA Tethered Chains in Polymer Microstructures 4. T.Q. Nguyen, H.-H. Kausch, Lausanne, CH Mechanochemical Degradation in Transient Elongational Flow 5. P. Corradini, G. Guerra, Naples, Italy Polymorphism in Polymers 6. K.A. Armitstead, G. Goldbeck-Wood, A. Keller, Bristol, UK Review of Polymer Crystallization Theories 7. M. Fischer, Fribourg, CH Properties and Failure of Polymers with Tailored Distances between Crosslinks 8. M. Stamm, Mainz, FRG Polymer Interfaces on a Molecular Scale: Comparison of Techniques and Some Examples
Download or read book Nanopapers written by Wenyi Huang and published by William Andrew. This book was released on 2017-10-19 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanopapers: From Nanochemistry and Nanomanufacturing to Advanced Applications gives a comprehensive overview of the emerging technology of nanopapers. Exploring the latest developments on nanopapers in nanomaterials chemistry and nanomanufacturing technologies, this book outlines the unique properties of nanopapers and their advanced applications. Nanopapers are thin sheets or films made of nanomaterials such as carbon nanotubes, carbon nanofibers, nanoclays, cellulose nanofibrils, and graphene nanoplatelets. Noticeably, nanopapers allow highly concentrated nanoparticles to be tightly packed in a thin film to reach unique properties such as very high electrical and thermal conductivities, very low diffusivity, and strong corrosion resistance that are shared by conventional polymer nanocomposites. This book presents a concise introduction to nanopapers, covering concepts, terminology and applications. It outlines both current applications and future possibilities, and will be of great use to nanochemistry and nanomanufacturing researchers and engineers who want to learn more about how nanopapers can be applied. - Outlines the main uses of nanopapers, showing readers how this emerging technology should best be applied - Shows how the unique properties of nanopapers make them adaptable for use in a wide range of applications - Explores methods for the nanomanufacture of nanopapers
Download or read book Multilayer Thin Films written by Sukumar Basu and published by BoD – Books on Demand. This book was released on 2020-01-15 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, "Multilayer Thin Films-Versatile Applications for Materials Engineering", includes thirteen chapters related to the preparations, characterizations, and applications in the modern research of materials engineering. The evaluation of nanomaterials in the form of different shapes, sizes, and volumes needed for utilization in different kinds of gadgets and devices. Since the recently developed two-dimensional carbon materials are proving to be immensely important for new configurations in the miniature scale in the modern technology, it is imperative to innovate various atomic and molecular arrangements for the modifications of structural properties. Of late, graphene and graphene-related derivatives have been proven as the most versatile two-dimensional nanomaterials with superb mechanical, electrical, electronic, optical, and magnetic properties. To understand the in-depth technology, an effort has been made to explain the basics of nano dimensional materials. The importance of nano particles in various aspects of nano technology is clearly indicated. There is more than one chapter describing the use of nanomaterials as sensors. In this volume, an effort has been made to clarify the use of such materials from non-conductor to highly conducting species. It is expected that this book will be useful to the postgraduate and research students as this is a multidisciplinary subject.
Download or read book Cell Surface Engineering written by Rawil Fakhrullin and published by Royal Society of Chemistry. This book was released on 2014-07-24 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: A summary of the recent achievements in surface-functionalised cells including fabrication, characterisation, applications and nanotoxicity.
Download or read book Nanostructured Thin Films and Surfaces written by and published by John Wiley & Sons. This book was released on 2010-03-08 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book series Nanomaterials for the Life Sciences, provides an in-depth overview of all nanomaterial types and their uses in the life sciences. Each volume is dedicated to a specific material class and covers fundamentals, synthesis and characterization strategies, structure-property relationships and biomedical applications. The series brings nanomaterials to the Life Scientists and life science to the Materials Scientists so that synergies are seen and developed to the fullest. Written by international experts of various facets of this exciting field of research, the series is aimed at scientists of the following disciplines: biology, chemistry, materials science, physics, bioengineering, and medicine, together with cell biology, biomedical engineering, pharmaceutical chemistry, and toxicology, both in academia and fundamental research as well as in pharmaceutical companies. VOLUME 5 - Nanostructured Thin Films and Surfaces
Download or read book Fluid Interfaces written by Eduardo Guzmán and published by MDPI. This book was released on 2021-03-02 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid interfaces are promising candidates for confining different types of materials, e.g., polymers, surfactants, colloids, and even small molecules, to be used in designing new functional materials with reduced dimensionality. The development of such materials requires a deepening of the physicochemical bases underlying the formation of layers at fluid interfaces as well as on the characterization of their structures and properties. This is of particular importance because the constraints associated with the assembly of materials at the interface lead to the emergence of equilibrium and features of dynamics in the interfacial systems, which are far removed from those conventionally found in traditional materials. This Special Issue is devoted to studies on the fundamental and applied aspects of fluid interfaces, and attempts to provide a comprehensive perspective on the current status of the research field.
Download or read book Biomimetic Polymers written by C.G. Gebelein and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term biomimetic is comparatively new on the chemical scene, but the concept has been utilized by chemists for many years. Furthermore, the basic idea of making a synthetic material that can imitate the func tions of natural materials probably could be traced back into antiquity. From the dawn of creation, people have probably attempted to duplicate or modify the activities of the natural world. (One can even find allusions to these attempts in the Bible; e. g. , Genesis 30. ) The term "mimetic" means to imitate or mimic. The word "mimic" means to copy closely, or to imitate accurately. Biomimetic, which has not yet entered most dictionaries, means to imitate or mimic some specific bio logical function. Usually, the objective of biomimetics is to form some useful material without the need of utilizing living systems. In a simi lar manner, the term biomimetic polymers means creating synthetic poly mers which imitate the activity of natural bioactive polymers. This is a major advance in polymer chemistry because the natural bioactive polymers are the basis of life itself. Thus, biomimetic polymers imitate the life process in many ways. This present volume delineates some of the recent progress being made in this vast field of biomimetic polymers. Chemists have been making biomimetic polymers for more than fifty years, although this term wasn't used in the early investigations.
Download or read book Roll to Roll Manufacturing written by Jehuda Greener and published by John Wiley & Sons. This book was released on 2018-02-27 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: A single-volume resource featuring state-of-the art reviews of key elements of the roll-to-roll manufacturing processing methodology Roll-to-roll (R2R) manufacturing is an important manufacturing technology platform used extensively for mass-producing a host of film-type products in several traditional industries such as printing, silver-halide photography, and paper. Over the last two decades, some of the methodologies and know-how of R2R manufacturing have been extended and adapted in many new technology areas, including microelectronics, display, photovoltaics, and microfluidics. This comprehensive book presents the state-of-the-art unit operations of the R2R manufacturing technology, providing a practical resource for scientists, engineers, and practitioners not familiar with the fundamentals of R2R technology. Roll-to-Roll Manufacturing: Process Elements and Recent Advances reviews new developments in areas such as flexible glass, display, and photovoltaics and covers a number of process innovations implemented recently to extend and improve the capabilities of traditional R2R lines. It covers such topics as: coating and solidification processes, in-line vacuum deposition, drying, web handling and winding, polymer film substrates, novel hybrid composite films, flexible solar cells and more. Additionally, this book: Examines key elements (unit operations) of the R2R technology, and discusses how these elements are utilized and integrated to achieve desired process efficiencies in a host of applications. Illustrates several established and novel application areas where R2R processing is utilized in current or future products. Discusses process design methodology and key advantages of R2R manufacturing technology over batch or sheet-to-sheet operations. Roll-to-Roll Manufacturing: Process Elements and Recent Advances is an ideal book for undergraduate and graduate students in various science and engineering disciplines, as well as for scientists, engineers, and technical and business leaders associated in any way with the development, commercialization, and manufacture of a variety of film products.
