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| http://dx.doi.org/10.1042/bj1300029p | DOI Listing |
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Study on Quality and Starch Characteristics of Powdery and Crispy Lotus Roots.
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Department of Food Science and Engineering, School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China.
Nine varieties of lotus root (, , , , , , , , and ) were selected as the research materials to compare their differences in physical, chemical, and starch characteristics before and after boiling, frying, and microwaving. The results showed that , , , , and belong to the crispy lotus root type, while , , , and belong to the powdery lotus root type. Furthermore, the nine varieties were characterized for their starch by optical micrograph (OM), polarized micrograph (PM), scanning electron micrograph (SEM), attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), carbon-13 cross-polarization/magic angle spinning nuclear magnetic resonance (C CP/MAS NMR), and differential scanning calorimetry (DSC).
View Article and Find Full Text PDFSelf-oriented anisotropic structure of G-hydrogels as a delicate balance between attractive and repulsive forces.
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Department of Life and Environmental Sciences, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy.
Guanine (G) hydrogels are very attractive materials made by the supramolecular organization of G-derivatives in water. In this paper, hydrogels composed of guanosine 5'-monophosphate (GMP) and guanosine (Gua), that make long, flexible and knotted G-quadruplexes, were investigated by small- and wide-angle X-ray scattering (SAXS and WAXS) to comprehend the origin of their unique orientational properties. The SAXS intensity, analysed at a fixed scattering vector modulus as a function of polar angle, allowed us to derive the Maier-Saupe orientation parameter .
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June 2022
Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okólna 2, 50-422 Wrocław, Poland.
Hybrid organic-inorganic perovskites comprising hypophosphite ligands are emerging functional materials exhibiting magnetic, photoluminescence, negative thermal expansion and negative linear compressibility behaviours. This work reports five novel hypophosphite perovskites, [A]M(HPOO) (A = pyrrolidinium (PYR), guanidinium (GUA) and imidazolium (IM); M = Cd and Co). [GUA]Cd(HPOO), [IM]Cd(HPOO), [GUA]Co(HPOO) and [IM]Co(HPOO) belong to the centrosymmetric trigonal 3̄, monoclinic 2/, monoclinic 2/, and orthorhombic space groups, respectively, while [PYR]Cd(HPOO) crystallizes in the noncentrosymmetric orthorhombic space group 2.
View Article and Find Full Text PDFA molecular crowding thermo-switchable chiral G-quartet hydrogel with circularly polarized luminescence property.
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April 2022
Materials Genome Institute, and Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China.
A novel helix hydrogel with a G-quartet structure was synthesized from guanosine (Gua) and its derivative 5'-guanosine monophosphate (5'-GMP) under a molecular crowding environment. The chirality of the hydrogel is adjusted by controlling the gelling speed. The chiral hydrogel can induce an achiral dye Thioflavin T (ThT) to realize circularly polarized fluorescence (CPL).
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J Phys Chem Lett
March 2022
School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, No. 57, Jingxuan West Road, Qufu 273165, P. R. China.
Light-emitting diodes (LEDs) with the circularly polarized luminescence features have attracted attention to the promising applications ranging from solid-state lighting and displays to bioencoding and anticounterfeiting. The prerequisite of circularly polarized luminescence is highly emissive chiral materials. Here, we demonstrated that (R/S-MBA)CuI·2HO (MBA = α-methylbenzylaminium) and acentric GuaCuI (Gua = guanidinium) single crystals were grown on the basis of GuaCuI by the slow evaporation method.
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