Biomedical imaging is playing an important role in all phases of cancer management including screening, stag-ing, monitoring of treatment, and in long term surveillance of cancer patients. Imaging forms an essential part of cancer clinical protocols and is able to furnish morphological, structural, metabolic and functional information. Early detection of cancer through screening based on imaging is probably the major contributor to a reduction in mortality for certain cancers. Imaging techniques currently available or in development for the diagnosis, staging and surgical treatment of cancers include US (ultrasound), CT (Computed Tomography), MRI (Magnetic Reso-nance Imaging), PET (Positron Emission Tomography) and optical imaging. In recent years, the major advances in imaging and the combination of molecular biology and the imaging sciences have merged into a new research field named ‘molecular imaging’. It includes all imaging modalities which include PET-CT, PET- MRI and optical imaging.
Photopolymer is a promising holographic recording medium due to its low cost, self-developing, highly sensitive, good optical properties, and easy fabrication process. Acrylamide and its derivatives are equally useful for recoding medium. Holographic pressure sensor, temperature sensor, gas sensor, humidity sensor and organic vapour sensor, data storage are the potential application using acrylamide monomer based photopolymer or its derivatives based photopolymer. Swelling and shrinkage are the properties of acrylamide photopolymer, which are not suitable for holographic data storage but suitable for sensor application. In this work, photopolymer based holographic recording material has been reviewed.
Cancer cells are notoriously good at becoming resistant to drugs meant to kill them by rerouting their signaling networks. Therapies with one or multiple drugs are employed to attack both the primary and alternate pathways, the overarching goal being to preemptively block the cancer’s escape route. Nanobiotechnology offers multiple notable advantages technologically, clinically, and patient-related by decreasing the risks of the procedure and increasing the probability of survival. In nanochemotherapy, several methods are employed whereby cytotoxic drugs are either anchored in or encapsulated to specially-designed nanoparticles and their carriers. The ten types of nanoparticles and the seven varieties of nanodevices that carry them are discussed. Particular emphasis is on glioblastomas (brain cancers). A comparison between conventional che-motherapy and nanochemotherapy evidences several clinical advantages. However, experiments with laboratory animals have unfortunately not translated into successful clinical results. As a result, I urge new directions to improve cancer nanobiotechnology and outline future prospects.
Micro-sized calcium carbonate and several commercial grades of talc were selected to develop polypropylene-based microporous membranes through the MEAUS process (melt extrusion – annealing – uniaxial strain). Different filler percentages were added to polypropylene (1, 5, 10 wt. % calcium carbonate/talc). To analyze the effect of the calcium carbonate/talc, and content of the obtained membranes, parameters such as draw ratio during extrusion, annealing temperature, strain rate, and strain extension were kept constant. Talc membranes showed that the small particle size and high aspect ratio tend to provide membranes with fine pore distribution, high porous area, and high Gurley permeability values, and calcium carbonate membranes demonstrated that the stress applied involved a pre-orientation of the amorphous tie chains before crystal chain unfolding, which can be related to the first yield point. A logical pattern of increasing elastic modulus as filler content does is found in calcium carbonate compounds.
The MEAUS project was a collaboration between Centre Catalá del plastic and Universitat Politècnica de Catalunya in the reputed research group in the field of membranes processed by extrusion.
M“Atoms”, “molecules”... hearing these words definitely ring a bell and somewhere we associate these words with another word that is small. So defining Nanotechnology in simple terms is understanding and controlling of a matter at a nanoscale which involves further modeling, structuring, and manipulation to put it to our use
Cancer cells are notoriously good at becoming resistant to drugs meant to kill them by rerouting their signaling networks. Therapies with one or multiple drugs are employed to attack both the primary and alternate pathways, the overarching goal being to preemptively block the cancer’s escape route. Nanobiotechnology offers multiple notable advantages technologically, clinically, and patient-related by decreasing the risks of the procedure and increasing the probability of survival. In nanochemotherapy, several methods are employed whereby cytotoxic drugs are either anchored in or encapsulated to specially-designed nanoparticles and their carriers. The ten types of nanoparticles and the seven varieties of nanodevices that carry them are discussed. Particular emphasis is on glioblastomas (brain cancers). A comparison between conventional che-motherapy and nanochemotherapy evidences several clinical advantages. However, experiments with laboratory animals have unfortunately not translated into successful clinical results. As a result, I urge new directions to improve cancer nanobiotechnology and outline future prospects.
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