Nanobiotechnology

About: Nanobiotechnology is a research topic. Over the lifetime, 796 publications have been published within this topic receiving 46309 citations. The topic is also known as: bionanotechnology & nanobiology.

Hybrid assemblies of fluorescent nanocrystals and membrane proteins in liposomes.

Abstract: Because of the growing potential of nanoparticles in biological and medical applications, tuning and directing their properties toward a high compatibility with the aqueous biological milieu is of remarkable relevance. Moreover, the capability to combine nanocrystals (NCs) with biomolecules, such as proteins, offers great opportunities to design hybrid systems for both nanobiotechnology and biomedical technology. Here we report on the application of the micelle-to-vesicle transition (MVT) method for incorporation of hydrophobic, red-emitting CdSe@ZnS NCs into the bilayer of liposomes. This method enabled the construction of a novel hybrid proteo–NC–liposome containing, as model membrane protein, the photosynthetic reaction center (RC) of Rhodobacter sphaeroides. Electron microscopy confirmed the insertion of NCs within the lipid bilayer without significantly altering the structure of the unilamellar vesicles. The resulting aqueous NC–liposome suspensions showed low turbidity and kept unaltered the wavelen...

Biological Synthesis of Nanoparticles by Different Groups of Bacteria

Abstract: Nanotechnology is the creation, manipulation, and use of materials at the nanometer size scale (1–100 nm). Many characteristics of the material at the nanoscale are very different in the same materials from the larger scales. Although nanoscale materials can be produced using a variety of traditional physical and chemical processes, it is now possible to biologically synthesize materials via environment-friendly green chemistry-based techniques. In recent years, the convergence between nanotechnology and biology has created the new field of nanobiotechnology that incorporates the use of biological entities such as actinomycetes, algae, bacteria, fungi, viruses, yeasts, and plants in a number of biochemical and biophysical processes. The biological synthesis via nanobiotechnology processes has a significant potential to boost nanoparticle production without the use of harsh, toxic, and expensive chemicals commonly used in conventional physical and chemical processes. The aim of this review is to provide an overview synthesizing nanoparticles via different groups of bacteria and their potential applications.

Plant-Based Synthesis of Gold Nanoparticles and Theranostic Applications: A Review

Abstract: Bionanotechnology is a branch of science that has revolutionized modern science and technology. Nanomaterials, especially noble metals, have attracted researchers due to their size and application in different branches of sciences that benefit humanity. Metal nanoparticles can be synthesized using green methods, which are good for the environment, economically viable, and facilitate synthesis. Due to their size and form, gold nanoparticles have become significant. Plant materials are of particular interest in the synthesis and manufacture of theranostic gold nanoparticles (NPs), which have been generated using various materials. On the other hand, chemically produced nanoparticles have several drawbacks in terms of cost, toxicity, and effectiveness. A plant-mediated integration of metallic nanoparticles has been developed in the field of nanotechnology to overcome the drawbacks of traditional synthesis, such as physical and synthetic strategies. Nanomaterials′ tunable features make them sophisticated tools in the biomedical platform, especially for developing new diagnostics and therapeutics for malignancy, neurodegenerative, and other chronic disorders. Therefore, this review outlines the theranostic approach, the different plant materials utilized in theranostic applications, and future directions based on current breakthroughs in these fields.

Biosilica in Evolution, Morphogenesis, and Nanobiotechnology

Abstract: This chapter provides the results of geological investigations of the main tectonic units of the Baikal-Tuva region (southwestern part of Siberia) during the last decades: the ancient Siberian craton and adjacent areas of the Central Asian Orogenic belt. In the framework of these main units we describe smallscale blocks (terranes) with focus on details of their inner structure and evolution through time. As well as describing the geology and tectonics of the area studied, we give an overview of underwater sediments, neotectonics, and some phenomena of history and development of the Baikal, Khubsugul, Chargytai, and Tore-Chol Lakes basins of the Baikal–Tuva region. It is suggested that these lakes’ evolution was controlled by neotectonic processes, modern seismic activity, and global climate changes. D. Gladkochub ( ) Institute of Earth’s crust, the Siberian Branch of Russian Academy of Sciences, Lermontov St., 128, Irkutsk, Russia e-mail: gladkochub@mail.ru W.E.G. Müller and M.A. Grachev (eds.), Biosilica in Evolution, 3 Morphogenesis, and Nanobiotechnology, Progress in Molecular and Subcellular Biology, Marine Molecular Biotechnology 47, DOI: 10.1007/978-3-540-88552-8, © Springer-Verlag Berlin Heidelberg 2009 4 D. Gladkochub and T. Donskaya