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The interaction between solution ions and bio-macromolecules could serve as the directors during the construction of NiO biomorphic hierarchical structures.
This synthesis route might open up an opportunity to fabricate other desired 3D structures.
Zaragoza-Contreras: Materials Chemistry and Physics, Vol.109(2008), p.306

Introduction Since Tanaka firstly found the temperature-sensitivity of polyacrylamide-based hydrogel in 1978[1], intelligent hydrogels that can respond to external stimuli such as temperature, pH, solvent, light, etc. have attracted scientists’ interest from areas of chemistry, materials, biology and so on.
It was expected the multiple network structure will be helpful for mechanical performance and the microgels embedded will endow the hydrogels rapid response.
It can be seen from Fig.2 that hydrogel with porous structure were formed, and microgels were embedded in the hydrogel network as expected.

Preparation, Characterization and Catalytic Properties of Nanostructured Mesoporous Au/CeO2 Siqin Deligen1,a and Bao Agula2,b* 1Department of Chemical Engineering, Inner Mongolia Vocational College of Chemical Engineering, Huhhot, 010070, P.R.China 2College of Chemistry and Environmental Science, Inner Mongolia Normal University, Huhhot,010022 , P.R.
The main reflections at 28.6, 33.3, 47.5 and 56.8° of 2θ in the XRD patterns of all the samples correspond to the cubic, fluorite structure typical of CeO2, and there is no indication of the presence of other phases.
The image demonstrates that the CeO2 has a disordered wormhole-like mesopore structure, formed by the agglomeration of the uniform nanoparticles.

Polystyrene Novel Composites with Enhanced Thermal Stability and Improvised Conductivity Shafi Ur Rehman1,a*, Sana Javaid2,b, Muhammad Shahid1,c, Badar Rashid3,d, Fawad Ahmad 2, e 1School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan 2Department of Chemistry, University of Wah, Quid Avenue, Wah Cantt, Rawalpindi 47040, Pakistan 3Dean of Research and Development (R & D), National University of Technology NUTECH, Islamabad 44000, Pakistan a*shafi.phdscme@student.nust.edu.pk, bsana.javaid@uow.edu.pk, cmshahid@scme.nust.edu.pk, dseebadar@yahoo.com, efawad.ahmad@uow.edu.pk Keywords: Polymeric composites; boron nitride powder; thermal conductivity.
These snags are present inherently in polymers due to the presence of covalent bonding in their organic structures.
The prototypical structure of a polymer is reflected in Figure 1, where the electrons are held together and looks like locked as a result of the covalent bondings.

Roberto Frias, 4200-465 Porto, Portugal 2Faculty of Sciences – Department of Chemistry and Biochemistry, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal arcarneir@fe.up.pt, bpjalmeid@fc.up.pt, clcosta@fe.up.pt Keywords: Geonets, polyethylene, durability, thermo-oxidation, Tinuvin 783.
Introduction Geosynthetics are polymeric materials used in the construction of many civil engineering structures, such as waste landfills, roads, railways, tunnels, dikes or reservoirs.
Yet, this type of degradation must be taken into account in polymeric materials applied in civil engineering structures (where, in many cases, the materials have to perform their functions for several years).

Sodium copper chlorophyll was purchased from Zhengzhou Jinde Chemistry SCI-Tech Co.
The results are attributed to the correlation between dye structures and the charge properties of wool fiber.
This is caused by the fact that high temperature facilitates the swelling of the tight structure of epicuticle layer existing on wool surface, and correspondingly the diffusion of dyes into wool fiber [11].

Thin foil specimens for TEM were prepared by punching 3 mm diameter discs, followed by chemistry polishing and Ar＋ ion milling in a precision ion polishing system (PIPS, Gatan) operating at 4.5 kV accelerating voltage and 2-8°incident angle.
After an annealing at 400℃ for 1h, the microstructure still remains markedly oriented in the rolling direction and with evidence of recovery (Fig. 1B).However, after annealing at 700°C for 1h, recrystallization occurs and few fine grains were observed, but the elongate structure resulting from rolling still visible in some areas (Fig. 1C).
For the annealing treatment at 800 ℃, the elongate structure absolutely disappeared and becomes equiaxed grains (Fig. 1D), which shows the completely recrystallization.

Finally, some EPS in filter bed can combine with iron and manganese oxidation or other suspended solid to form floc structure.
To investigate the distribution, structure and function of manganese oxidizing bacteria, the manganese sand from 20, 60, 80 and 100 cm of filer layer depth at 120 d were analyzed by PCR-DGGE.
Industrial & Engineering Chemistry Research, Vol. 50 (2011) No.22, p.12372

Heavy metal wastewater is generally of concern because of its pollution to environment and toxicity to human health [1].One of the effective means for removal of heavy metal pollutants is using adsorption materials because of their extensive microporous structure and high special surface area.
The surface and internal structure of CSAC are changed by any kind of activated carbon regeneration methods.
Mason, Practical Sonochemistry: User’s guide to applications in chemistry and chemical engineering, Ellis Horwood, Chichester, 1991,186

The Ca3Co4O9 ceramic is p-type semiconductor which has a layered structure [2] consisting of insulating rock-salt Ca2CoO3 layers and conducting CdI2-type CoO2 layers stacked alternately along c-axis.
The micro-structure and tissue of samples was observed by Axiophot Metalloscope; The electric resistivity of samples was measured by Agilent4294A impedance analyzer.
Journal of Solid State Chemistry. 178 (2005) p. 2186–2190