A two-stage sequential pretreatment including caustic mercerization (CM) and liquid ammonia (LA) treatment was applied to investigate the influence on dyeing performance and handle of knit cotton fabric, and the relationship between dye size and dyeing properties. Various techniques were applied to characterize all the treated fabrics. X-ray diffraction (XRD) and Fourier-transform infrared (FTIR) analyses of the treated fabrics confirmed that both sequential treatments decreased the crystallinity of cotton fabric more than only the CM or LA treatment. The pattern of cellulose I was transferred to a mixed configuration of cellulose II and cellulose III after the CM/LA or LA/CM treatment. Thermal performances measured by thermogravimetric analysis (TGA) and differential thermogravimetry (DTG) techniques showed that the thermal stability of the treated cotton only marginally decreased. The wicking height increased after the sequential CM/LA treatment, indicating that the hydrophilicity of the fabric increased. The dye absorption and color uniformity were better for the reactive dye with a smaller molecular weight (Reactive Red 2) compared with the one with a larger molecular weight (Reactive Red 195). The total dye fixation efficiency (T%) increased to 72.93% and 73.24% for Reactive Red 2 dyeings of CM/LA- and LA/CM-cotton fabric from 46.75% of the untreated fabric, respectively; the T% increased to 65.33% and 72.27% for Reactive Red 195 dyeings of CM/LA- and LA/CM-cotton fabric from 35.17% of the untreated fabric, respectively. The colorfastness and dye exhaustion and fixation percentages of the samples were enhanced after the treatments. Furthermore, compared to the single CM or LA treatment, the softness handle properties were further improved after the fabrics were sequentially treated by CM/LA. The developed pre-treatment of CM/LA can be used in the textile industry to promote the dyeability, handle, and mechanical properties of knit cotton fabrics.
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http://dx.doi.org/10.3390/ma15051758 | DOI Listing |
Biomed Pharmacother
January 2025
Departament de Farmacologia, Toxicologia i Química Terapèutica, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona (UB), Av. de Joan XXIII, 27-31, Barcelona 08028, Spain; Institut de Neurociències, Universitat de Barcelona (UB), Passeig de la Vall d'Hebron, 171, Barcelona 08035, Spain; Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED), Instituto de Carlos III, Av. Monforte de Lemos, 3-5, Madrid 28029, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), Hospital Universitari Sant Joan de Reus, Av. Josep Laporte, 2, Reus 43204, Spain. Electronic address:
The rise of antimicrobial resistance has made necessary the increase of the antibacterial arsenal against multidrug-resistant bacteria. In this context, colistin has re-emerged as a first-line antibiotic in critical situations despite its nephro- and neuro- toxicity at peripheral level. However, the mechanism underlying its toxicity remains unknown, particularly in relation to the central nervous system (CNS).
View Article and Find Full Text PDFDose Response
January 2025
Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
Cytokinins are plant hormones that regulate cell growth and differentiation. In particular, zeatin (ZTN) delays cellular senescence of human fibroblasts and keratinocytes and exhibits anticancer activity. Chemotherapy-induced anemia is a major side effect of anticancer therapy secondary to premature senescence of red blood cells (RBCs).
View Article and Find Full Text PDFTransl Pediatr
December 2024
Department of Neonatology, Yunnan First People's Hospital, Kunming, China.
Background: Necrotizing enterocolitis (NEC) is a devastating gastrointestinal condition mainly affecting premature infants, and gasdermin D (GSDMD) has emerged as a molecule of interest due to its pivotal role in the inflammatory process called pyroptosis in NEC pathogenesis. The aim of this study is to examine the potential of GSDMD and interleukin-1β (IL-1β) as early diagnostic biomarkers for NEC.
Methods: We examined 207 infants with clinical symptoms of NEC admitted to our neonatal intensive care unit (NICU) between December 2023 and June 2024.
Asian J Transfus Sci
September 2022
Department of Obstetrics and Gynecology, Faculty of Medicine Padjajaran University, Hasan Sadikin General Hospital, Bandung, Indonesia.
Anti-M antibody is one of the causes of severe fetal anemia and intrauterine death despite its relatively low frequency. A G3P2 26-year-old pregnant woman referred to our hospital at 29 weeks gestational age (WGA) with fetal hydrops. Her second pregnancy results in intrauterine fetal death at 35 WGA due to fetal hydrops.
View Article and Find Full Text PDFAsian J Transfus Sci
November 2023
Department of Transfusion Medicine, Tata Medical Center, Kolkata, West Bengal, India.
Noise in the immunohematological investigations can be described as a false reactivity of red blood cells (RBCs) in serologic testing that is not related to the interaction of RBC antigens and antibodies that the test system is intended to detect. These false-positive reactions can cause confusion during the cross-matching and RBC antibody screening and may result in delays in patient transfusion. Although these antibodies are predominantly clinically insignificant, proper laboratory work-up is indicated to avoid misidentification of a clinically significant antibody as a noise.
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