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Bio-inspired preparation of Ag NPs, rGO, and Ag/rGO nanocomposites for acoustical, antioxidant, and plant growth regulatory studies.
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Department of Chemistry, Devchand College, Arjunnagar, Kolhapur, MH, 591237, India.
Acoustical properties are essential for understanding the molecular interactions in fluids, as they influence the physicochemical behavior of liquids and determine their suitability for diverse applications. This study investigated the acoustical parameters of silver nanoparticles (Ag NPs), reduced graphene oxide (rGO), and Ag/rGO nanocomposite nanofluids at varying concentrations. Ag NPs and Ag/rGO nanocomposites were synthesized via a Bos taurus indicus (BTI) metabolic waste-assisted method and characterized using advanced techniques, including XRD, TEM, Raman, DLS, zeta potential, and XPS.
View Article and Find Full Text PDFForensic characterization of Brazilian gemstones: A pilot study employing raman spectroscopy and multivariate analysis.
Forensic Sci Int
January 2025
Departamento de Química. Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto. Universidade de São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, São Paulo CEP 14040-901, Brazil; Instituto Nacional de Ciência e Tecnologia Ciências Forenses (INCT-Forense), Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP 14040-901, Brasil; Programa de Cooperação Acadêmica - Segurança Pública e Ciências Forenses (PROCAD-SPCF), Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP 14040-901, Brasil. Electronic address:
Forensic gemstone analysis faces many challenges. One of the most critical aspects of gemological research is the classification of a gemstone. It is necessary to understand the mineral species, purity, origin, and identification of treatments to identify and classify a gem correctly, as well as assign a monetary value to it.
View Article and Find Full Text PDFLimited reactivity of pyroxene and plagioclase in batch experiments with supercritical CO in the presence of NaCl and NaHCO in the context of CO sequestration via carbonation.
Environ Sci Pollut Res Int
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Council for Geoscience, Private Bag X112, Pretoria, 0001, South Africa.
One-step high-pressure and high-temperature direct aqueous mineral carbonation of tailings derived from mining of Platinum Group Metals in South Africa requires a fundamental understanding of the reactivity of the most dominant mineral phases, i.e. pyroxene and plagioclase (66 wt.
View Article and Find Full Text PDFMagnetically Diluted Dy and Yb Squarates Showing Relaxation Tuning and Matrix Dependence.
Molecules
January 2025
Department of Engineering Science, The University of Electro-Communications, Chofu 182-8585, Tokyo, Japan.
A new compound [Y(sq)(HO)] (Y-sq; sq = squarate (CO)) was prepared and structurally characterized. Since the RE-sq family (RE = Y, Dy, Yb, Lu) gave isostructural crystals, the objective of this study is to explore the effects of diamagnetic dilution on the SIM behavior through systematic investigation and comparison of diamagnetically diluted and undiluted forms. The 1%-Diluted Dy compounds, Dy@Y-sq and Dy@Lu-sq, showed AC magnetic susceptibility peaks without any DC bias field (), whereas undiluted Dy-sq showed no AC out-of-phase response under the same conditions.
View Article and Find Full Text PDFPhysicochemical properties and biological interaction of calcium silicate-based sealers - in vivo model.
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Department of Restorative Dentistry - Endodontics, Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas, Piracicaba, SP, Brazil.
Objectives: To investigate volumetric changes, in vivo biocompatibility, and systemic migration from eight commercial endodontic sealer materials in paste/paste, powder/liquid, and pre-mixed forms.
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