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Application of thermally assisted high hydrostatic pressure to modify sorghum starch: multi-scale structure, techno-functional properties and digestibility.
J Food Sci Technol
January 2025
Department of Food Engineering and Technology, School of Food Engineering, Universidade Estadual de Campinas (UNICAMP), Monteiro Lobato 80, 6121, Campinas, SP 3083-862 Brazil.
Unlabelled: The effects of high hydrostatic pressure (HHP) (400-650 MPa) and holding temperature (25-50 °C) in thermally assisted HHP processing on multi-scale structure of starch (granule, crystalline and molecular), techno-functional properties, and digestibility of sorghum starch (SS) were evaluated. Response surface methodology has verified that the process impact on the modification of SS was dependent primarily on the pressure level. As HHP increased, processed SS progressively lost their granular structure and Maltese cross, indicating gradual structural disorder within the granules.
View Article and Find Full Text PDFRedox-Gated Optical Modulation of Coumarin-Triphenyliminophosphorane Fluorophores.
ACS Phys Chem Au
January 2025
Department of Medical Applied Chemistry, Chung Shan Medical University, Taichung 402, Taiwan.
Novel coumarin-triphenyliminophosphorane (TPIPP) fluorophores, synthesized via a nonhydrolytic Staudinger reaction, exhibit remarkable redox-responsive optical properties. Upon chemical and electrochemical oxidation, these compounds display a hypsochromic shift in absorption from 430 to 350 nm, accompanied by up to 11-fold fluorescence enhancement under 405 nm excitation. The fluorescence switching occurs at an electrochemical oxidation potential of approximately +2.
View Article and Find Full Text PDFComparative Evaluation of pH, Calcium Ion Release, and Setting Time of Premixed and Freshly Mixed Tricalcium Silicate-based Endodontic Materials: An Study.
Int J Clin Pediatr Dent
December 2024
Department of Pedodontics and Preventive Dentistry, Vivekanandha Dental College for Women, Namakkal, Tamil Nadu, India.
Background And Objective: During the last 200 years, there have been many changes in the way of performing endodontic treatment. The increased demand from patients for saving their teeth has led to the development of various innovative equipment and advances in the field of material sciences. Thus, the standard protocol of endodontic treatment has undergone several modifications.
View Article and Find Full Text PDFHyperspectral analysis to assess gametocytogenesis stage progression in malaria-infected human erythrocytes.
J Biomed Opt
February 2025
National Institute of Standards and Technology, Applied Physics Division, Boulder, Colorado, United States.
Significance: Developments of anti-gametocyte drugs have been delayed due to insufficient understanding of gametocyte biology. We report a systematic workflow of data processing algorithms to quantify changes in the absorption spectrum and cell morphology of single malaria-infected erythrocytes. These changes may serve as biomarkers instrumental for the future development of antimalarial strategies, especially for anti-gametocyte drug design and testing.
View Article and Find Full Text PDFChemical associations of selenium oxyanions in metal oxides derived from layered double hydroxides: Implication for the immobilization of radionuclides.
Environ Res
January 2025
School of Creative Science and Engineering, Faculty of Science and Engineering, Waseda University, Tokyo 169-8050, Japan; Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University, Fukuoka 819-0395, Japan. Electronic address:
Layered double hydroxides (LDHs) can effectively stabilize Se oxyanions, yet the thermal stability of Se oxyanions incorporated into LDHs remains unclear. In this study, calcination products of three types of LDHs loaded with SeO2- 3 or SeO2-4 were analyzed using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), X-ray absorption fine structure spectroscopy (XAFS) and leaching tests. It has been found that SeO2-4 can be reduced to SeO2- 3 in the Fe-containing LDHs after calcination at temperatures above 450 °C.
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