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Rod-shaped nanocrystals are formed by self assembly of t -Bu-phenyl substituted tetra(carboxamido)perylenes (BPP) in different solvents. The structure and the dimensions of the nano-rods may be controlled by the choice of the hydrogen-bond accepting capacity of the solvent (DMSO, DMF, DMAc, HMPA), by the concentration and by the composition of solvent-mixture (by adding hydrogen-bond donating solvents), but is independent of the surface used for their deposition (mica, silicon, gold, glass). The different forms of aggregation were examined by AFM and SNOM and were correlated to UV-Vis absorption spectra of the aggregates in solution. The orientation of the transition dipole moment of the molecules in the nanocrystals has been determined by polarized fluorescence microscopy and, in combination with the crystal structure of the t -Bu substituted analogue of BPP, is used to develop a model for the internal molecular structure of the rod shaped aggregates.

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from Aladdin Chemistry Co. (Shanghai, China). BSA and dimethyl sulfoxide (DMSO) was obtained from Sigma (NY, USA). AG and nitroblue tetrazolium (NBT) were purchased from Macklin Biochemical Co., Ltd. (Shanghai, China). The human hepatoblastoma cell line

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Progress in Agricultural Engineering Sciences
Authors: Khabat Noori Hussein, Tímea Molnár, Richard Pinter, Adrienn Toth, Emna Ayari, Laszlo Friedrich, Istvan Dalmadi, and Gabriella Kiskó

-weighed 8 mL TSB (Tryptic Soy Broth) in a sterile eppendorf tube. Meanwhile, 0.014 g of menadione was dissolved in 1 mL of DMSO and added to the previously made resazurin solutions. Gradient-plate method In this method, culture suspension of 10 6 CFU was

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). Subsequently, supernatants were removed and dissolved by adding dimethyl sulfoxide (DMSO) (Sigma-Aldrich, MO, USA) to MTT absorbed by cells. The plates were then read at 570 nm using the Epoch spectrophotometer (BioTek Instruments, Winooska, VT) ( Bal et al

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