(1)The microwave  absorption of the magnetic nanocomposites has been evaluated exhibiting a  significant weight reduction with a comparable performance.  The unique nanofillers with tunable  permittivity and permeability (via carbon nanotubes and nanoiron coating) were designed and created for electromagnetic interference  (EMI) shielding and electromagnetic radiation (EMR) absorption.   In addition, the annealing effect  (conventional vs microwave heating) on the polymer matrix has been an  interesting topic in changing the matrix conductivity and the formed components.

(2)A giant  magnetoresistance (GMR) has been observed in the carbonized polymer nanocomposite systems, and  unique  conductive polymers and their nanocomposites. Theoretical foundations for the positive  and negative GMR signals have been built to serve as guidance for selecting  advanced nanocomposites and building modern GMR sensors.

(3)Meanwhile, we are targeting  to revolutionize the traditional chemical engineering by introducing the  nanochemicals and nanoenergineering into the conventional Chemical Engineering  disciples. These include the fluid dynamics, kinetics, thermodynamics, etc. These will facilitate the practical applications of nanochemicals such as nanoadsorbents for heavy metal removal from polluted water, reduced viscosity for polymer processing, etc.

(4)Besides the above  nanostructural research, Dr. Guo has also done quite a lot on the  environmental-related research. He has got involved in the coal desulfurization  using wet chemical method in SDUST (1995-1996), spent more than two years in  the tail gas desulfurization (sulfur dioxide, SO2) using hollow  fiber membrane modulus (1996-1999), and one year full-time employee as an  Associate Engineer to design the Catalyst Pilot in Beijing Research Institute  of Chemical Industry (1999-2000).