Anna Elisa Silva, Eduardo Thiago Formigari, João Pedro Mayer Camacho Araújo, Dagoberto de Oliveira Silva, Jürgen Andreaus, Eduardo Guilherme Cividini Neiva^*

Journal of Renewable Materials, Vol.13, No.10, pp. 1899-1912, 2025, DOI:10.32604/jrm.2025.02025-0130 - 22 October 2025

Abstract Here, we report a comprehensive study on the characterization of cotton biomass residue, its conversion into carbon-based materials via pyrolysis, and its application as an electrochemical sensor for ascorbic acid (AA). The compositions, morphologies, and structures of the resulting materials were investigated using XRD, FTIR, TGA, SEM, and EDS. Pyrolysis was carried out in an air atmosphere at different temperatures (300°C and 400°C) and durations (1, 60, and 240 min), leading to the transformation of lignocellulosic cotton residue into carbon-based materials embedded with inorganic nanoparticles, including carbonates, sulfates, chlorates, and phosphates of potassium, calcium, and… More > Graphic Abstract

Jackson Silva Nóbrega^1,*, Geovani Soares de Lima¹, Jean Telvio Andrade Ferreira², Julio Cesar Agostinho da Silva¹, Lauriane Almeida dos Anjos Soares¹, Valéria Fernandes de Oliveira Sousa¹, Paulo Vinicius de Oliveira Freire¹, Reynaldo Teodoro de Fátima¹, Flávia de Sousa Almeida¹, Hans Raj Gheyi², Josemir Moura Maia³

Phyton-International Journal of Experimental Botany, Vol.94, No.5, pp. 1587-1600, 2025, DOI:10.32604/phyton.2025.063633 - 29 May 2025

Abstract The Northeast region is the main producer of guava in Brazil, generating employment and income. However, water availability means that producer’s resort to using water with high salinity, which harms plant development, especially during the seedling formation phase. The adoption of techniques that mitigate the deleterious effect of salinity is increasingly necessary, such as the use of elicitors such as ascorbic acid. The purpose of this study was to analyze the morphophysiology of guava seedlings under saline and ascorbic acid levels. The study was carried out by applying treatments composed of five saline levels (SL… More >

R. A. Ulwali^*, N. K. Abbas

Chalcogenide Letters, Vol.21, No.12, pp. 1011-1020, 2024, DOI:10.15251/CL.2024.2112.1011

Abstract Pure zinc sulfide nanoparticles and doped with silver (0.5,1,1.5,2.5, and 3.5) % wt. were prepared by green method. The structural properties were studied using X-ray diffraction technology(XRD). The diffraction patterns showed the particles were crystalline and had a zinc-blend structure with different average grain size. The surface topography was investigated by Scanning Electron Microscope (FE-SEM), it was found the shape is spherical and had different nanosized. Chemical purity was studied using Energy Dispersive X-ray Spectroscopy(EDX), the results showed the appearance of basic elements (Zn, S) and silver. The results of Fourier Transform Infrared Spectroscopy(FTIR) showed More >

Muhammad Younis¹, Nudrat Aisha Akram^1,*, Arafat Abdel Hamed Abdel Latef^2,*, Muhammad Ashraf³

Phyton-International Journal of Experimental Botany, Vol.92, No.10, pp. 2761-2784, 2023, DOI:10.32604/phyton.2023.028801 - 15 September 2023

Abstract To counteract the effects of drought stress, scientists have adopted several approaches including the use of different chemicals both inorganic and organic, which is contemplated as a highly efficient and cost-effective shot-gun approach. Ascorbic acid (AsA) is a potential organic substance, which widely occurs in plants, and is considered to be an effective antioxidant to counteract reactive oxygen species (ROS). Thus, a pot experiment was performed to assess the relative mitigating impacts of synthetic AsA and naturally occurring AsA in the form of lemon juice (LJ) and orange juice (OJ) on two cultivars of okra (Abelmoschus… More >

PRABHAT KUMAR, ANJANA SARKAR, PURNIMA JAIN^*

Journal of Polymer Materials, Vol.39, No.1-2, pp. 121-135, 2022, DOI:10.32381/JPM.2022.39.1-2.8

Abstract Biocompatible graphene derivative materials (GBMs) to harness the maximum potential of pristine graphene biologically, is the most important strategy for its advanced applications in pharmaceutical and other biomedical fields. Currently, scientists are trying to find this by using biopolymer nanocomposites or anchored materials. Nevertheless, tuning the bare GBMs towards biocompatibility is a beautiful approach to exploit the fundamental potential of pristine graphene vis-à-vis suppressing the effects of incorporated biopolymers or anchored materials. Herein, a large-scale, cost-effective, facile, and environment-friendly green synthetic strategy is used for the synthesis of reduced graphene oxide (rGO) nanosheet using L-ascorbic… More >

Krupa-Małkiewicz M¹, B Smolik², M Sędzik²

Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 15-23, 2019, DOI:10.32604/phyton.2019.04670

Abstract Salinity is one of the abiotic stresses that limits the growth and productivity of many crops. A possible survival strategy for plant under saline conditions is to use compounds that could minimize the harmful effects of salt stress on the plant development. The objective of the presented study was to investigate the effect of exogenous ascorbic acid (ASA) with or without gibberellic acid (GA3) on key growth and biochemical parameters in two petunia cultivars ‘Prism Rose’ and ‘Prism White’ under saline (150 mM NaCl) and non-saline in vitro condition. Nodal cutting with an axillary buds… More >

JACQUELINE NELISIS ZANONI, RENATA VIRGINIA FERNANDES PEREIRA

BIOCELL, Vol.32, No.2, pp. 163-168, 2008, DOI:10.32604/biocell.2008.32.163

Abstract The objective of this work was to evaluate the effect of the ascorbic acid supplementation on the cellular proliferation on the ileum mucosa of diabetic rats. Fifteen 90-days rats were divided in the groups: control, diabetic and diabetic supplemented with ascorbic acid (DA). Two hours prior the sacrifice, they were injected with Vincristin. Semi-seriate histological cuts stained with HE were accomplished. About 2500 crypt cells from the intestinal mucosa were counted in order to obtain the metaphasic indexes. The height and depth of 30 villi and 30 crypts were measured for each animal, respectively. The… More >

M. G. RÍOS-DURÁN*, A. R. HERNÁNDEZ-TÉLLEZ**, C. A. MARTÍNEZ-PALACIOS**, L. G. ROSS***

BIOCELL, Vol.30, Suppl.S, pp. 149-155, 2006

Abstract This article has no abstract. More >

MARLI APARECIDA DOS SANTOS PEREIRA, MARIA CLAÚDIA BAGATIN, JACQUELINE NELISIS ZANONI

BIOCELL, Vol.30, No.2, pp. 295-300, 2006, DOI:10.32604/biocell.2006.30.295

Abstract We assessed the ascorbic acid (AA) supplementation on the myenteric neurons in the duodenum of rats. Fifteen rats with 90 days of age were divided into three groups: control (C), diabetics (D) and ascorbic acid treated diabetics (DA). After 120 days of daily treatment with AA, the duodenum was submitted to the NADH-diaphorase (NADH-d) histochemical technique, which allowed us to evaluate the neuronal density in an area of 8.96 mm² for each duodenum, and also to measure the cellular profile area of 500 neurons per group. The supplementation promoted an increase on AA levels. The neuronal More >