The present work is devoted to the investigation of the polyamidoamine (PAMAM) dendrimer binding on the surface of polymer particles. Two generations of amino-terminal PAMAM macromolecules were chemically immobilized on the outer epoxy-shell of the polymer leading to nanostructured surface further available for cluster-like binding of a wide range of chemical species. The study proved that nanostructuring was successful and even enhanced by higher

The use of smoke pyrotechnic compositions bring during use an intoxication risk to the staff located in the immediate proximity. One of the methods for pyrotechnic composition toxicity evaluation consists in the dimensional analysis of the solid particles resulted from the combustion and the determination of the respiratory system intrusion rate. The experimental determinations were performed for three new smoke compositions: two of them based on

This paper presents a portable device for rapid preparation of samples, in situ, in order to facilitate the detection and identification of toxic substances. This product is for research and provides increased sensitivity NBC detection equipment (ion mobility spectrometers, indicated tubes), and decreasing the time needed for preparation solid and liquid samples to identify toxic substances by spectrometric techniques (gas chromatography with mass

This paper presents the experimental results obtained as a result of the testing on castor of a new type of nanocomposite superparamagnetic material. The purpose of the biochemical fixing tests was to obtain information concerning the characteristics of the biochemical fixing: efficiency, mechanisms, etc. The tested nanocomposite structure represents a new nanocomposite material, of the (ECH)nβ-{Fe3O4-n[SiO1.5γ-(CH2)3(NH2)](NH2)nδ}-(GL)nε type

In this chapter we have presented and investigated the specific mechanisms underlying the reticulation, separation and encapsulation processes of organic pollutants. Specific depollution mechanisms, as well as the main depollution parameters (yield, efficiency), have been investigated by testing a polyfunctionalized nanocomposite material (MOF-DP) on three types of water charged with organic pollutants. The polluted waters on which the depollution

This paper presents the unitary and controlled synthesis of nanostructures of the type Fe3O4-n[SiO1.5-(CH2)3(NH2)]-Snθ [Fe3O4 = magnetic core; n[SiO1.5-(CH2)3(NH2)] = coating layer; -NH2 = layer made up of groups which play an important part in biochemical interface; Snθ = exterior layer of biochemical cross-linked molecules]. The purpose of obtaining these nanostructures is to fix Fe3O4-n[SiO1.5-(CH2)3(NH2)]-Snθ on microorganism surface through

This paper presents the synthesis of complex nanostructures of the Fe3O4-n[SiO1.5 γ-(CH2)3(NH2)](NH2)n δ- (GL)n ε type [Fe3O4 = magnetic core; n[SiO1.5 γ-(CH2)3(NH2)] = coated layer; (NH2)n δ,-NH2= surface and deep amino groups which play an important role in biochemical interfacing; (GL)n ε= exterior superficial glutaraldehyde layer]. These nanostructures have several interesting physical and chemical characteristics, such as: biochemical

As a result of the global climatic changes generated by the alteration of the environment through polution, the ecosystems’ natural ressources are incontrollably distributed, generating unforseeable effects at the level of the subsequent evolution of the natural balance factors. One of the greatest challenges of the science concerned with environment protection, is that of real time monitoring of the biochemical constitution. The real time monitoring

This chapter presents the main physicochemical and functional mechanisms substantiating the understanding and proper modelling of the process of obtaining composite materials with functional oriented structure. These mechanisms were substantiated on the theoretical and experimental data obtained by the team of authors and their collaborators inside applicative projects for the sensitising and detection of biochemical structure and for the separation

The obtaining of intelligent materials requires strict control of physical and chemical parameters that characterize them. In most cases, especially in the case of the nano- or microcomposite structures, the parameters to be controlled and quantified are of morphological and topological nature. This is a direct consequence of the fact that the chemical and physical properties of the nanoparticles and composite materials are strongly dependent on