Articles Related to polymers

Intra- or inter-chain dipole–dipole interactions between opposite charges cause collapse of the structure in polyampholyte hydrogels formed by using ionic monomers with different charges. Furthermore, these interactions are unavoidable as in the case of clamped polymer chains.

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A translucent UV protecting poly (methyl methacrylate) (PMMA)/TiO2 nanocomposite has been fabricated using anatase TiO2 nanoparticles by solution method. The myristic acid capped titania nanoparticles were synthesized via a simple sol-gel method, involving hydrolysis of titanium tetra isopropoxide (TTIP).

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The development of effective drug delivery approaches for the treatment of AIDS and HIV infection is a global challenge. The advent of multidrug, highly active antiretroviral therapy (HAART), have increased the life span of HIV-infected patients.

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The purpose of this study is to synthesize and characterize nanodroplets, loaded with docetaxel for treatment of prostate cancer under MR-guided focused ultrasound. Water insoluble docetaxel encapsulated in nanodroplets is expected to be delivered into tumors with greater efficiency while minimizing drug related systemic toxicities when used in combination with focused ultrasound. The sequence of our studies toward development and characterization of docetaxel-loaded nanodroplets is as follows. First, we developed methods for synthesis of ultrasound-responsive, docetaxel-loaded nanodroplets (Doc-nd) by a solid dispersion technique. Secondly, we characterized Doc-nd by its morphology and size distributions using a dynamic light scattering (DLS) method.

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In recent years many progress has been achieved in the biomedical and biopharmaceutical fields particularly in drug delivery and regenerative medicine. This has been possible thanks to the increased expertise in polymers chemistry as well as the advent of innovative techniques of materials manipulation that have lead to the production of new “smart” polymeric devices with peculiar propertiesable to selectively reach almost all areas of the human body, in the case of drug delivery systems, or to reduce the chemical-physical gap between human tissues and synthetic devices, in the case of tissue engineering.

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The application of electronic-nose (E-nose) technologies in forensic science is a recent new development following a long history of progress in the development of diverse applications in the related biomedical and pharmaceutical fields. Data from forensic analyses must satisfy the needs and requirements of both the scientific and legal communities. The type of data collected from electronic-nose devices provides a means of identifying specific types of information about the chemical nature of evidentiary objects and samples under investigation using aroma signature profiles of complex gaseous mixtures containing volatile organic compounds (VOCs) released from manufactured products and parts of the human body. E-nose analyses also provide useful qualitative information about the physicochemical characteristics and metabolic conditions of human subjects without the need for time-consuming analyses to identify all chemical components in human-derived volatile mixtures.

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