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91.
R. Cristescu I.N. Mihailescu A. Doraiswamy G. Westwood S. Stafslien D.B. Chrisey 《Applied Surface Science》2009,255(10):5496-5498
Mussels secrete specialized adhesives known as mussel adhesive proteins, which allow attachment of the organisms to underwater marine environments. Obtaining large quantities of naturally derived mussel adhesive proteins adhesives has proven to date rather problematic, thus, synthetic analogs of mussel adhesive proteins have recently been developed. We report deposition of 1:100 and 1:1000 poly[(3,4-dihydroxystyrene)-co-styrene)] mussel adhesive protein analogs by matrix assisted pulsed laser evaporation (MAPLE) using an ArF* excimer laser source. The deposited films have been evaluated for their antifouling behavior. The MAPLE-deposited synthetic mussel adhesive protein analog thin films are homogenous and adhesive, making the use of these materials in thin film form a viable option. 相似文献
92.
V. Ilcheva P. Petkov V. Boev F. Sima C.N. Mihailescu C. Popov 《Applied Surface Science》2009,255(24):9691-9694
Thin (AsSe)100−xAgx films have been grown onto quartz substrates by vacuum thermal evaporation or pulsed laser deposition from the corresponding bulk materials. The amorphous character of the coatings was confirmed by X-ray diffraction investigations. Their transmission was measured within the wavelength range 400-2500 nm and the obtained spectra were analyzed by the Swanepoel method to derive the optical band gap Eg and the refractive index n. We found that both parameters are strongly influenced by the addition of silver to the glassy matrix: Eg decreases while n increases with Ag content. These variations are discussed in terms of the changes in the atomic and electronic structure of the materials as a result of silver incorporation. 相似文献
93.
Mihai Mihailescu Vicentiu Radulescu 《Proceedings of the American Mathematical Society》2007,135(9):2929-2937
We consider the nonlinear eigenvalue problem in , on , where is a bounded open set in with smooth boundary and , are continuous functions on such that , , and for all . The main result of this paper establishes that any sufficiently small is an eigenvalue of the above nonhomogeneous quasilinear problem. The proof relies on simple variational arguments based on Ekeland's variational principle.