Drying shown in Figure 7. The HPC-based hydrogels displayed a prominent peak at drying are are shown in Figure 7. The HPC-based hydrogels displayed a prominent peak at 1050 cm1-1,which was attributed to C-O asymmetric stretching. The prominent band for 1050 cm- , which was attributed to C-O asymmetric band for confirming the ester on 23G and HEMA was observed at 1722 cm-1and was attributed to observed at 1722 cm-1 and was attributed to confirming the ester the stretching vibration of C = O. The peak at (S)-Amlodipine besylate Membrane Transporter/Ion Channel around 1722 cm-1was also observed roughly 1722 cm-1 was also observed the stretching in the HPC/23G/HEMA hydrogel, using a a low gel fraction obtainedat ten kGy. Therefore, inside the HPC/23G/HEMA hydrogel, with low gel fraction obtained at ten kGy. Therefore, this indicated that 23G and HEMA were combined chemically or physically with HPC as this indicated that 23G and HEMA had been combined chemically or physically with HPC because the homopolymer and unreacted monomer had been removed by washing prior to the measurethe homopolymer and unreacted monomer have been removed by washing prior to the ment. Even though there was pretty much no peak no peak within the HPC/23G hydrogel hydrogel measurement. While there was practically observed observed within the HPC/23G spectrum, this could be could the quite low concentration of 23G. Clearly, 23G was present inside the spectrum, this due tobe resulting from the very low concentration of 23G. Clearly, 23G was present HPC/23G hydrogels because both the gel the gel and tensile strength strength compared inside the HPC/23G hydrogels since both fraction fraction and tensile increased elevated for the HPC hydrogels hydrogels ready The transmittances in the HPC/23G the compared to the HPCprepared without having 23G.��-Carotene supplier devoid of 23G. The transmittances of and HPC/23G/HEMA hydrogels are shown in are shown in Figure eight. Both HPC-based HPC/23G and HPC/23G/HEMA hydrogels Figure 8. Each HPC-based hydrogels were extremely transparent and exhibited and exhibited practically exactly the same transparency because the hydrogels were highly transparentalmost the same transparency as the HPC hydrogel devoid of 23G and HEMA. and HEMA. HPC hydrogel devoid of 23GAppl. Sci. 2021, 11, x FOR PEER Critique Appl. Sci. 2021, 11, x9168 PEER Assessment Appl. Sci. 2021, 11, FOR8 of 11 88 of 11 ofTransmittance (a.u.) Transmittance (a.u.)HPC HPC HPC/23G HPC/23G HPC/23G/HEMA, ten kGy HPC/23G/HEMA, ten kGy HPC/23G/HEMA, 50 kGy HPC/23G/HEMA, 50 kGy172218001500 1200 900 1500 1200 900 Wavenumber (cm-1) Wavenumber (cm-1)600Figure 7. FT-IR ATR spectra of HPC-based hydrogels obtained at the following concentration and Figure FT-IR Figure 7.7. (20 wt. ,ATR spectra of HPC-based hydrogels obtained at the following concentration dose. HPCFT-IR ATR spectra of HPC-based hydrogels obtained at HPC/23G/HEMA (20/0.2/2 and 50 kGy), HPC/23G (20/0.2 wt. , 50 kGy), and the following concentration and ten kGy and 50 kGy). dose.(20 wt. , 50wt. , 50 kGy), HPC/23G (20/0.two wt. , 50 kGy), and HPC/23G/HEMA dose. wt. , HPC HPC (20 kGy), HPC/23G (20/0.two wt. , 50 kGy), and HPC/23G/HEMA (20/0.2/2 (20/0.2/2 wt. , 50 kGy). wt. , 10 kGy and10 kGy and 50 kGy).100 100 80 80 60 60 40 40 20 20 0 0 300Transmittance Transmittance HPC/23G HPC/23G HPC/23G/HEMA HPC/23G/HEMA400 500 600 700 400 500 600 700 Wavelength (nm) Wavelength (nm)800The mechanical properties of HPC-based hydrogels are shown in Figure 9. Young’s The mechanical properties of HPC-based hydrogels are shown in Figure 9. Young’s moduli of HPC-based hydrogels HPC-based hydrogels are shown in Fig.
