Electrospinning of novel calixarene-functionalized PAN and PMMA nanofibers: Comparison of fluorescent protein adsorption performance

Calixarenes: Generalities and Their Role in Improving the Solubility, Biocompatibility, Stability, Bioavailability, Detection, and Transport of Biomolecules

“…In this study, the hormone was α-melanocyte-stimulating (Figure 9), and was immobilized onto medical device surfaces with C -tetra(octyl)calixresorcin[4]arene. The results obtained by the authors indicated that the α-melanocyte hormone retains its anti-inflammatory properties and suggested that this strategy could be useful in the manufacture of new materials [66].…”

“…In this context, the calixarenes have been shown to be useful as linking agents. For example, Keskinates et al [66] used a calixarene tetraester (5,11,17,23-tetra- tert -butyl-25,26,27,28-tetramethoxycarbonylmethoxy-calix[4]arene) to achieve a good interaction between nanofibers of polyacrylonitrile (PAN) or poly(methyl methacrylate) (PMMA) and a green fluorescent protein. The containment of calixarene on the fiber where the binding of protein was highest was 50%.…”

Multifunctional CeO2/Co3O4@polyacrylonitrile nanofibers for high-efficiency air-pollutant removal

“…The first stage is around 300–450°C, which is a rapid-weight-loss stage, mainly due to the degradation of the side chain of PAN, which escapes in the form of small molecules such as HCN, NH 3 and H 2 . 25 , 29,30 The next stage is around 450–800°C, in which the thermal-weight-loss rate is slower than in the first stage, mainly due to the decomposition of the carbon–carbon backbone. The differential thermogravimetry (DTG) curve shows a sharp peak at 330°C and a low-intensity broad peak centered at 460°C, which exactly corresponds to the thermal decomposition path of the TGA curve.…”

“…The pure PAN nanofiber membrane shows four absorption vibration peaks, 1452, 1732, 2242 and 2939 cm À1 , which were attributed to the -CH-absorption peak caused by in-plane bending vibration, the ester C¼O stretching vibration, the cyano CN characteristic stretching vibration absorption peak and the absorption peak at the PAN main chain -CH2-stretching vibration peak, respectively. 25 In addition, when CeO 2 /Co 3 O 4 was loaded onto the fiber, the characteristic PAN peak did not change significantly, while the composite fiber exhibited tensile vibration at 667, 575 and 531 cm À1 . The strong absorption peaks at 667 and 575 cm À1 are the tensile vibrations of Co-O in Co 3 O 4 , 26 and the absorption peak at 531cm À1 indicates tensile vibrations of Ce-O, 27 indicating that the composite fiber was successfully formed, and the peak vibration intensity became stronger as the concentration increased.…”

Nifedipine, Niclosamide and Furosemid Release of A Biocompatible and Protective Hydrogel for Cancer Therapy

“…Nifedipine is an effective calcium channel blocker that is commonly used in a variety of cardiovascular diseases for clinical management 13 . In a number of circumstances, furosemide is a loop diuretic used orally to change the amount and/or composition of body uids, including hypertension heart failure, renal failure, nephritic syndrome and cirrhosis [20].…”