The ammonia-activated carbon and its surface modified derivative have similar nitrogen contents with a similar proportion of pyridine or nitrile groups (398.3 398.9 eV), amine, amide, imide and pyrrole class groups (400.2 400.8 eV).
This work demonstrates that the filamentous fungi, Aspergillus fumigatus can efficiently flocculate the unicellular cyanobacteria Synechocystis PCC 6803 and its genetically modified derivatives that have been altered to enable secretion of free fatty acids into growth media.
fumigatus) cells can efficiently flocculate the unicellular cyanobacteria Synechocystis PCC 6803 and its genetically modified derivatives that have been designed for secretion of FFAs to the growth media where the hydrophobic droplets of secreted FFAs were used by fungal cells as the carbon source for growth and/or for ex-novo production of lipids.
For instance, chemically modified gelatin derivatives have been widely explored to develop hydrogels for tissue engineering and regenerative medicine applications.
Several chemically modified derivatives of HA have been developed to circumvent the disadvantages of HA.
The modified pullulan derivatives having N-phenylurethane and N-hexylurethane groups in the side-chain (PI-PL and HI-PL) have been synthesized by the reactions of pullulan with phenyl isocyanate (PIC) and hexyl isocyanate (HIC), respectively.
Since the Caputo-Hadamard fractional derivatives were introduced in [11], not much about the modified derivatives were studied despite the fact that the derivatives have many advantages over the usual Hadamard fractional derivative.
CA-4 is recognized as an important parent compound, in terms of its biological effects, and hundreds of structural modified CA-4 derivatives have been synthesized and reported [15, 16], where the modifications have traditionally been affected using either a Wittig reaction or a Perkin condensation reaction.
Recently, erythromycin has received much attention because its semi-synthetically modified derivatives, such as azithromycin, roxithromycin, and clarithromycin, are widely used in the treatment of infectious diseases [1],[2].
It has been reported that CDs or their chemically modified derivatives can improve water solubility and the bioavailability of drugs with poor water solubilities [16, 17].
