Graphene synthesis thesis

One of the most substantial technological developments is the integration of samples at ultrahigh pressure with a wide range of in-situ probing techniques. Applications of extreme pressure have significantly enriched our understanding of the electronic, phonon, and doping effects on the newly emerged two-dimensional 2D materials. The promising capability of high pressure combine with the significance of novel emerging 2D materials in energy-related research was the main motivation of this dissertation. The synthesized samples were extensively characterized, and their crystal phase and chemical composition were confirmed.

Graphene synthesis thesis

However, even if the vision of 68Ga becoming as immense as 99mTc will not get fulfilled, 68Ga has definitely strong contribution to make in Graphene synthesis thesis improvement of personalized patient management and there is a niche for 68Ga-based agents in nuclear medicine.

Moreover, 68Ga-agents have the prerequisites to substitute also In-based radiopharmaceuticals. Biomarkers, targets, and ligands Development of agents for imaging and radiotherapy involves identification of biological process and target underlying the pathology as well as respective lead compound.

Then the radioactive lead compound counterpart must be designed, chemically characterized as well as preclinically and clinically validated.

In particular, the specific targeting and pre-targeted imaging require information on biomarkers and is dependent on their discovery. Thus, advances in biological research and biotechnology are crucial.

Proteomics and genomics considerably contribute to the expansion due to the increasing knowledge and access to the vectors and targets such as receptors, enzymes, antigens as well as their ligands and substrates.

Proteins demonstrate remarkable capability of molecular recognition. Advances in genetic and biochemical techniques resulted in a large number of antibody radioimmunotherapeutics.

That in turn triggered further development with the objective to overcome the drawbacks related to antibody high molecular weight, slow pharmacokinetics and clearance that cause high radiation dose to normal tissue and poor image contrast. Thus, large libraries of high affinity small proteins have been created using combinatorial engineering and phage display techniques that provide efficient screening of ligands as well as identification and selection of antibodies and receptors for drug discovery and therapy.

Thirteen surface-exposed residues of the scaffold were randomized resulting in a library 3x members of high-affinity binders to various targets [ 39 ]. Radiolabelled Affibody molecules have extensively been investigated preclinically, and 68Ga- and In-labelled analogues with high affinity to HER2 receptors up-regulated in breast cancer has also been studied in patients [ 40 ].


This is a strong evidence for the future fruitful development of engineered high affinity proteins and abundant source of ligands to various receptors expressed in diseased tissues. G-protein and G-protein coupled receptor discoveries, both awarded with Nobel Prize, respectively in andprovided basis for the important and most explored class of imaging agents comprising small regulatory peptides that are involved in many metabolic processes in almost all organs [ 41 - 43 ].

The current development is directed to pansomatostatin and antagonist analogues [ 44 ]. Other examples of peptide receptor targets in various cancer types are: Even though just few of them were labelled with 68Ga, it is a solid background and springboard for 68Ga-based analogues to come in the nearest future.

Many more studies have been conducted preclinically and it is worth mentioning that the total critical mass of basic knowledge and experience gained until now will lead to the explosively growing clinical studies with 68Ga.

Thus fundamental research in biology of surface receptors and antigens, enzyme activity, transport systems, proliferation, apoptosis, hypoxia, glycolysis, and angiogenesis provides invaluable information and lays a basis for imaging agent development.

PET radiopharmaceutical regulations The absence of legislation and regulations specific to PET radiopharmaceuticals made it difficult to conduct clinical trials and introduce new imaging agents into clinical routine however the situation has improved during last years.

It required considerable effort from academic, clinical and patient communities and societies, and the hard work has started giving results. Recent developments indicate possibility of regulatory specific solutions that may allow the clinical use of small scale preparation radiopharmaceuticals without obligation to apply for manufacturing authorization or clinical trial [ 52 ].

One of the major difficulties was that regulatory bodies evaluated therapeutic and imaging agents by the same process and put forward the same requirements, however there has been an improvement such as the recognition of the microdosing concept [ 53 - 55 ] by EMEA and FDA, and introduction of the Exploratory Investigational New Drug eIND guidelines that reduces the demand on toxicity studies and respective cost burden [ 5657 ].

This is possible because of the high sensitivity of PET and consequently use of nonpharmacological radiopharmaceutical doses of picomoles nanograms-micrograms.Reseach Area: Macroalgal biomass production and its conversion to bioenergy and value-added products, cellular biotechnology for seedling production and genetic improvement of seaweeds, seaweed biorefinery, nutraceutical supplements.

Chemical vapor deposition (CVD) is a deposition method used to produce high quality, high-performance, solid materials, typically under process is often used in the semiconductor industry to produce thin films..

In typical CVD, the wafer (substrate) is exposed to one or more volatile precursors, which react and/or decompose on the substrate surface to produce the desired deposit.

Graphene synthesis thesis

A thesis submitted to the Faculty of Graduate and Postdoctoral Studies in partial fulfillment of the requirements for the degree in Chemical Engineering. A supercapacitor (SC) (also called a supercap, ultracapacitor or Goldcap) is a high-capacity capacitor with capacitance values much higher than other capacitors (but lower voltage limits) that bridge the gap between electrolytic capacitors and rechargeable typically store 10 to times more energy per unit volume or mass than electrolytic capacitors, can accept and deliver.

Graphene Synthesis Method. Basically there are two different approaches to preparing graphene [27]. On the one hand graphene can be detached from an already existing graphite crystal, the so- THESIS.

Related Subjects. Applied Chemistry. Material Science and Technology. Fig. 1. Applications of surface-modified nanoparticles and, more broadly, nanostructures. Functional nanoparticle-surfactant combinations are involved in medical applications, structural materials, energy conversion processes, catalysts, as well as in cleaning and purification systems.

"Synthesis and fundamental property studies of energy material under hi" by Meysam Akhtar