Rats were aged 6 7 months at the beginning of the experiments, and weighed 330 440 g. 100 pegs (wooden dowels 17 cm × 0.9 cm) were inserted into the pegboard with a peg-to-peg distance of 10 cm (as shown in Fig. 1A).
After chemical conjugation of polyethylene glycol (PEG) to C60 (C60-PEG), diethylenetriacidepentaacetic aciDTPATPA) was subsequently introduced to the terminal group of PEG to prepare PEG-conjugated C60 (C60-PEG-DTPA).
The task is to transfer the individual disks from one peg to another so that no disk ever rests on one smaller than itself, and, finally, to transfer the tower; i.e., all the disks in their proper order, from their original peg to one of the other pegs.
The C-terminal Cys of the PLH block reacts with the orthopyridyldisulfide-modified end group of PEG to form the PLH-PEG copolymer and then activates the PLGA-COOH using 1-ethyl-3- 3-dimethylaminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS).
The hydroxyl group of HO-TEMPO was coupled with tosylated PEG to yield the macroinitiator PEG terminated with a TEMPO unit (MPEG-TEMPO), which was further used to prepare the diblock copolymer PS-b-PEG by 'living' free radical polymerisation of styrene.
Then, ring-opening polymerization of the NCA was initiated by isopropylamine to produce the product poly(N im -DNP-l-His), whicoupledfurther coupled with carboxylated PEG to produce NH2-PLH-PEG diblock copolymer under thiolysis deprotection using 2-mercaptoethanol [13].
With the exception of Bosnia, Macedonia (which both pegged their currencies against the Deutsche Mark) and Cape Verde (formerly pegged to the Portuguese escudo), all of these non-EU countries had a currency peg to the French Franc before pegging their currencies to the euro.
To improve the optical properties of ELP hydrogels, we incorporated hydrophilic PEG to make hybrid ELP-PEG hydrogels.
