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12,398 Results Found

  • Article
  • Open Access
1,108 Views
15 Pages

As an important branch of ancient Chinese silk dyeing and printing technology, alkali degumming printing utilizes alkali agents to degum raw silk, creating differences in fiber water absorption, dye uptake, and optical characteristics between degumme...

  • Article
  • Open Access
5 Citations
2,580 Views
20 Pages

Valorisation of “La Palma” Volcanic Ash for Making Portland-Blended, Alkaline and Hybrid Portland–Alkaline Cements

  • Pablo Martín-Rodríguez,
  • Ana Fernández-Jiménez,
  • María del Mar Alonso,
  • Angel Palomo and
  • Inés García-Lodeiro

2 January 2024

The present work evaluates the feasibility of using volcanic fly ash (VFA) generated by the eruption of the Tajogaite volcano on the island of La Palma (Spain) in 2021, as a precursor in the preparation of cementitious materials with different Portla...

  • Review
  • Open Access
48 Citations
7,816 Views
16 Pages

The Impact of Alkaline Stress on Plant Growth and Its Alkaline Resistance Mechanisms

  • Shuo Yang,
  • Yiqing Xu,
  • Zhenzhong Tang,
  • Shumei Jin and
  • Shuang Yang

23 December 2024

Alkaline stress can induce significant injury to plants, resulting in a range of negative effects, including ion toxicity, oxidative stress, and damage from high pH values. These stress factors can substantially affect normal plant growth and develop...

  • Review
  • Open Access
76 Citations
11,639 Views
28 Pages

22 November 2019

The low price, highly active triol structure, high volumetric energy density, simple storage and environment-friendly properties make glycerol a promising fuel for an alkaline direct alcohol fuel cell (ADAFC). Unlike other ADAFCs, alkaline direct gly...

  • Article
  • Open Access
2 Citations
1,821 Views
13 Pages

18 October 2024

Alkali printing was one of the traditional techniques employed for printing on silk georgette in ancient China. This study investigates two degumming methods in alkaline printing processes, namely alkaline boiling and alkaline steaming, based on the...

  • Article
  • Open Access
5 Citations
4 Pages

We investigated effects of sodium nitroprusside (SNP) on sucrose metabolizing enzymes, acid, and alkaline invertase and alkaline phosphatase in lemongrass (Cymbopogon flexuosus Steud) Wats varieties i.e. Krishna, Cauveri, Nima and Cheerharit. Fifteen...

  • Article
  • Open Access
8 Citations
3,858 Views
16 Pages

29 December 2022

Alkaline pectate lyases have biotechnological applications in plant fiber processing, such as ramie degumming. Previously, we characterized an alkaline pectate lyase from Bacillus clausii S10, named BacPelA, which showed potential for enzymatic ramie...

  • Article
  • Open Access
8 Citations
4,629 Views
14 Pages

The locus of heat resistance (LHR) confers resistance to extreme heat, chlorine and oxidative stress in Escherichia coli. This study aimed to determine the function of the LHR in maintaining bacterial cell envelope homeostasis, the regulation of the...

  • Review
  • Open Access
1,967 Views
9 Pages

Chemical studies usually consist of measurements made on large ensembles of molecules with data representing average values for the population. It has been shown that individual molecules of a given enzyme have different properties. Large-scale avera...

  • Article
  • Open Access
20 Citations
5,651 Views
12 Pages

Hybrid Alkaline Cements: Bentonite-Opc Binders

  • Ines Garcia-Lodeiro,
  • Ana Fernandez-Jimenez and
  • Angel Palomo

29 March 2018

Moderately alkaline activators can be used to formulate cementitious binders with a high Supplemetary Cementitious Materials (SCMs) and a low portland cement content (hybrid alkaline cements). This study aimed to prepare hybrid alkaline cements conta...

  • Article
  • Open Access
12 Citations
2,337 Views
9 Pages

10 March 2021

The concept of the alkaline activity of powdered materials introduced into cement compositions has been proposed, along with methods for its determination. The possibility of using waste glass as an active additive to Portland cement was evaluated fr...

  • Article
  • Open Access
9 Citations
2,474 Views
25 Pages

Biochar Improves Yield by Reducing Saline–Alkaline Stress, Enhancing Filling Rate of Rice in Soda Saline–Alkaline Paddy Fields

  • Weikang Che,
  • Xuebin Li,
  • Junlong Piao,
  • Yue Zhang,
  • Shihao Miao,
  • Hongyue Wang,
  • Liming Xie and
  • Feng Jin

12 August 2024

Soda saline–alkaline stress significantly impedes the rice grain filling process and ultimately impacts rice yield. Biochar has been shown to mitigate the negative impacts of saline–alkaline stress on plants. However, the exact mechanism...

  • Article
  • Open Access
6 Citations
2,665 Views
17 Pages

Groundwater-Driven Evolution of Prebiotic Alkaline Lake Environments

  • Benjamin M. Tutolo,
  • Robert Perrin,
  • Rachel Lauer,
  • Shane Bossaer,
  • Nicholas J. Tosca,
  • Alec Hutchings,
  • Serhat Sevgen,
  • Michael Nightingale,
  • Daniel Ilg and
  • Thomas Wilson
  • + 1 author

7 December 2024

Alkaline lakes are thought to have facilitated prebiotic synthesis reactions on the early Earth because their modern analogs accumulate vital chemical feedstocks such as phosphate through the evaporation of dilute groundwaters. Yet, the conditions re...

  • Review
  • Open Access
8 Citations
5,687 Views
15 Pages

Alkaline Material Effects on Roots of Teeth

  • Sowmya Shetty,
  • Sam L. Kahler and
  • Bill Kahler

10 December 2017

The aim of this review was to identify and analyse all studies related to the effects of alkaline materials used in dentistry on roots of teeth. The first part of the review focused on mechanical property alterations of root dentine due to sodium hyp...

  • Review
  • Open Access
17 Citations
5,430 Views
25 Pages

Progress and Prospect of Saline-Alkaline Soil Management Technology: A Review

  • Zhengkun Li,
  • Mcholomah Annalisa Kekeli,
  • Yaqi Jiang and
  • Yukui Rui

21 April 2025

Saline-alkaline and alkaline land is an important potential cultivated land resource in the world. With the destruction of the ecological environment, the cultivated land area is less and less. As a potential soil conditioner, wood vinegar can adjust...

  • Review
  • Open Access
41 Citations
4,661 Views
22 Pages

16 February 2023

Plant fibers (PFs), such as hemp, Coir, and straw, are abundant in resources, low in price, light weight, biodegradable, have good adhesion to the matrix, and have a broad prospect as reinforcements. However, the degradation of PFs in the alkaline ma...

  • Review
  • Open Access
38 Citations
9,354 Views
28 Pages

Hierarchical Zeolite Synthesis by Alkaline Treatment: Advantages and Applications

  • Daniele S. Oliveira,
  • Rafael B. Lima,
  • Sibele B. C. Pergher and
  • Vinícius P. S. Caldeira

1 February 2023

Zeolites are of great interest to the scientific and industrial communities due to their interesting catalytic properties, such as high specific area, shape selectivity, and thermal and hydrothermal stability. For this reason, zeolites have been inte...

  • Feature Paper
  • Review
  • Open Access
685 Citations
123,312 Views
23 Pages

21 February 2020

Alkaline water electrolysis is a key technology for large-scale hydrogen production powered by renewable energy. As conventional electrolyzers are designed for operation at fixed process conditions, the implementation of fluctuating and highly interm...

  • Feature Paper
  • Article
  • Open Access
8 Citations
2,701 Views
17 Pages

Study on Electrochemical Behavior of Oxidized Pyrite in Alkaline Electrolyte

  • Yehao Huang,
  • Zipei Jia,
  • Wen Wang,
  • Jia Yao,
  • Runbo Gao,
  • Laifu Xu,
  • Hongtao Zhang,
  • Yongsheng Zhang and
  • Xiangyu Song

12 August 2023

Nowadays, refractory gold ore production around the world accounts for about 30% of total gold production, and the low leaching rate of such gold concentrate seriously limits the efficient utilization of gold resources. The alkaline preoxidation proc...

  • Article
  • Open Access
16 Citations
4,902 Views
18 Pages

3 March 2020

The increasing discharge of wastewater containing inorganic salts, sometimes accompanied by high pH, has been a worldwide environmental problem. Constructed wetlands (CWs) are considered a viable technology for treating saline and/or alkaline wastewa...

  • Review
  • Open Access
10 Citations
4,034 Views
28 Pages

29 December 2023

Alkaline water electrolysis is promising for low-cost and scalable hydrogen production. Renewable energy-driven alkaline water electrolysis requires highly effective electrocatalysts for the hydrogen evolution reaction (HER) and the oxygen evolution...

  • Article
  • Open Access
187 Views
14 Pages

Study on the Transcriptome Response of Melon to Aaline—Alkaline Stress

  • Ting Wang,
  • Yan Zhang,
  • Nuerkaimaier Mulati,
  • Yifei Shu and
  • Huiqin Wang

5 March 2026

To decipher the molecular response mechanism of melon to saline–alkaline stress, seedlings of the melon cultivar “Xikaixin” were treated with 50 mmol·L−1 mixed solutions of NaCl and NaHCO3 at ratios of 1:1, 1:2, and 2:1...

  • Article
  • Open Access
2 Citations
2,974 Views
11 Pages

Effects of Alkaline Solutions on the Structure and Function of Influenza A Virus

  • Manato Seguchi,
  • Seiji Yamaguchi,
  • Mamoru Tanaka,
  • Yukihiro Mori,
  • Masato Tsurudome and
  • Morihiro Ito

19 October 2024

Influenza A virus (IAV) infection contributes to high annual morbidity and mortality, thus necessitating measures aimed at protecting against the disease. Alcohol-based disinfectants are commonly used to inactivate IAV, but they have several undesira...

  • Review
  • Open Access
6 Citations
2,948 Views
21 Pages

25 November 2024

Phosphatases are enzymes that catalyze the hydrolysis of phosphate esters. They play critical roles in diverse biological processes such as extracellular nucleotide homeostasis, transport of molecules across membranes, intracellular signaling pathway...

  • Review
  • Open Access
35 Citations
7,477 Views
17 Pages

16 June 2019

Extreme climate change due to heat-trapping gases, especially carbon dioxide, necessitates its mitigation. In this context, the carbon dioxide sequestration technology of enhanced weathering has for years been investigated, with a possible implementa...

  • Article
  • Open Access
1 Citations
1,855 Views
11 Pages

Increased Drop in Activity of Alkaline Phosphatase in Plasma from Patients with Endocarditis

  • Amila Kahrovic,
  • Thomas Poschner,
  • Anna Schober,
  • Philipp Angleitner,
  • Leila Alajbegovic,
  • Martin Andreas,
  • Doris Hutschala,
  • Ruud Brands,
  • Günther Laufer and
  • Dominik Wiedemann

(1) Infective endocarditis is a severe inflammatory disease associated with substantial mortality and morbidity. Alkaline phosphatase (AP) levels have been shown to change significantly during sepsis. Additionally, we previously found that a higher i...

  • Article
  • Open Access
15 Citations
8,488 Views
14 Pages

Bioleaching Process for Copper Extraction from Waste in Alkaline and Acid Medium

  • Ivica Ristović,
  • Darina Štyriaková,
  • Iveta Štyriaková,
  • Jaroslav Šuba and
  • Emilija Širadović

15 January 2022

Flotation wastes are becoming a valuable secondary raw material and source of many metals and semimetals worldwide with the possibilities of industrial recycling. The flotation tailings contain oxide and sulfide minerals that have not been sufficient...

  • Review
  • Open Access
12 Citations
7,665 Views
20 Pages

Navigating Alkaline Hydrogen Evolution Reaction Descriptors for Electrocatalyst Design

  • Samuel Akinlolu Ogunkunle,
  • Fabien Mortier,
  • Assil Bouzid,
  • Jack Jon Hinsch,
  • Lei Zhang,
  • Zhenzhen Wu,
  • Samuel Bernard,
  • Yong Zhu and
  • Yun Wang

10 September 2024

The quest for efficient green hydrogen production through Alkaline Water Electrolysis (AWE) is a critical aspect of the clean energy transition. The hydrogen evolution reaction (HER) in alkaline media is central to this process, with the performance...

  • Feature Paper
  • Review
  • Open Access
32 Citations
11,350 Views
22 Pages

Alkaline-Based Catalysts for Glycerol Polymerization Reaction: A Review

  • Negisa Ebadipour,
  • Sébastien Paul,
  • Benjamin Katryniok and
  • Franck Dumeignil

4 September 2020

Polyglycerols (PGs) are biocompatible and highly functional polyols with a wide range of applications, such as emulsifiers, stabilizers and antimicrobial agents, in many industries including cosmetics, food, plastic and biomedical. The demand increas...

  • Article
  • Open Access
16 Citations
3,955 Views
14 Pages

Investigations on Stability of Polycarboxylate Superplasticizers in Alkaline Activators for Geopolymer Binders

  • Stephan Partschefeld,
  • Adrian Tutal,
  • Thomas Halmanseder,
  • Jens Schneider and
  • Andrea Osburg

31 July 2023

Calcined clays are interesting starting materials to be used as SCMs (supplementary cementitious materials) in cements or to be converted to geopolymers by activation with a high alkaline activator. The adjustment of the properties in the fresh state...

  • Article
  • Open Access
6 Citations
4,189 Views
13 Pages

Effect of Stabilizer on Gold Leaching with Thiourea in Alkaline Solutions

  • Wenjuan Li,
  • He Shang,
  • He Zhou,
  • Yongsheng Song,
  • Shuilin Zheng and
  • Xinlong Yang

13 January 2022

The present work investigated the comparison of the effects of Na2SO3 and Na2SiO3 on thiourea stabilization, and a systematic study was undertaken to establish the effects of these stabilizers on the stability of alkaline thiourea, both qualitatively...

  • Feature Paper
  • Article
  • Open Access
138 Citations
12,264 Views
16 Pages

Hydration of Hybrid Alkaline Cement Containing a Very Large Proportion of Fly Ash: A Descriptive Model

  • Inés Garcia-Lodeiro,
  • Shane Donatello,
  • Ana Fernández-Jiménez and
  • Ángel Palomo

22 July 2016

In hybrid alkaline fly ash cements, a new generation of binders, hydration, is characterized by features found in both ordinary portland cement (OPC) hydration and the alkali activation of fly ash (AAFA). Hybrid alkaline fly ash cements typically hav...

  • Article
  • Open Access
3 Citations
2,265 Views
15 Pages

30 May 2025

In view of achieving decarbonization targets, green hydrogen has emerged as a promising low-emission alternative. Typically, green hydrogen is produced by splitting water using various electrolysis technologies powered by renewable energy. Among thes...

  • Article
  • Open Access
5 Citations
3,471 Views
16 Pages

A Separation and Desalination Process for Farmland Saline-Alkaline Water

  • Qiaonan Yang,
  • Can Hu,
  • Jie Li,
  • Xiaokang Yi,
  • Yichuan He,
  • Jie Zhang and
  • Zhilin Sun

13 October 2021

Salination poses serious hazards to farmland soil. For the purpose of solving soil salination, desalination of water sources, and other problems faced by arid areas, a separation and desalination process for farmland saline-alkaline water is proposed...

  • Article
  • Open Access
8 Citations
4,198 Views
21 Pages

23 January 2024

Polyethersulfone (PES) is a polymer popularly used to produce ultrafiltration (UF) membranes. PES is relatively hydrophobic; thus, hydrophilic ingredients are added to the membrane matrix to reduce the fouling intensity. Ingredients such as polyvinyl...

  • Review
  • Open Access
1,293 Views
19 Pages

Chemical Alkaline Leaching and Alkaliphile-Driven Bioleaching: Advancing Metal Recovery from Ores

  • Shuang Zhou,
  • Xianglong Qi,
  • Weijian Yu,
  • Qingjun Guan,
  • Yongjie Bu,
  • Jianyu Zhu,
  • Guohua Gu,
  • Tiantao Li and
  • Chenyang Zhang

Ore leaching constitutes a core step for achieving efficient utilization of mineral resources, primarily encompassing acid leaching and alkaline leaching methods. Currently, acid leaching technology has reached a high level of maturity and is widely...

  • Article
  • Open Access
20 Citations
5,467 Views
15 Pages

27 July 2020

The nature of mineral precipitations in terrestrial alkaline soda lakes provides insights into the water chemistry of subsurface oceans on icy bodies in the outer solar system. Saturation analyses of terrestrial alkaline lakes have shown that the sol...

  • Review
  • Open Access
3 Citations
2,037 Views
18 Pages

Alkaline Amino Acids for Salt Reduction in Surimi: A Review

  • Tong Shi,
  • Guxia Wang,
  • Yu Xie,
  • Wengang Jin,
  • Xin Wang,
  • Mengzhe Li,
  • Yuanxiu Liu and
  • Li Yuan

21 July 2025

Surimi products are popular due to their high protein and low fat content. However, traditional processing methods rely on high concentrations of salt (2–3%) to maintain texture and stability, contributing to excessive sodium intake. As global...

  • Article
  • Open Access
561 Views
15 Pages

Watching Alkaline Phosphatase Catalysis Through Its Vibrational Fingerprint

  • Margherita Tamagnini,
  • Haoyue Jiang,
  • Liana Klivansky,
  • Carlos Bustamante and
  • Alessandra Lanzara

30 December 2025

Despite decades of structural and kinetic characterization, the full spectral molecular vibrations that accompany the catalysis in alkaline phosphatase (ALP) have remained largely unexplored. In this study, we combine in situ real-time attenuated tot...

  • Article
  • Open Access
2 Citations
3,191 Views
27 Pages

Fluorine Controls Mineral Assemblages of Alkaline Metasomatites

  • Julia A. Mikhailova,
  • Yakov A. Pakhomovsky,
  • Natalia G. Konopleva,
  • Andrey O. Kalashnikov and
  • Victor N. Yakovenchuk

25 August 2022

In the Khibiny and Lovozero alkaline massifs, there are numerous xenoliths of the so-called ‘aluminous hornfelses’ composed of uncommon mineral associations, which, firstly, are ultra-aluminous, and secondly, are highly reduced. (K,Na)-fe...

  • Article
  • Open Access
1 Citations
351 Views
16 Pages

Physiological and Metabolic Responses of Alfalfa to Cold Stress Under Saline–Alkaline Conditions

  • Xu Zhuang,
  • Dongmei Zhang,
  • Ying Yang,
  • Weibo Han,
  • Linlin Mu,
  • Zhongbao Shen,
  • Guili Di,
  • Yaling Liu,
  • Jia You and
  • Jianli Wang

26 December 2025

Alfalfa (Medicago sativa L.), a perennial leguminous herb, can tolerate cold and saline–alkaline conditions. In this study, alfalfa cultivars LJ and 218TR were exposed to saline–alkaline, cold, and saline–alkaline–cold conditi...

  • Review
  • Open Access
1 Citations
1,568 Views
43 Pages

Anion Exchange Ionomer Binders for Alkaline Fuel Cells

  • Alannah C. Gowling and
  • Kelly M. Meek

17 September 2025

Anion exchange ionomer (AEI) binders are critical to the performance of alkaline electrochemical devices (i.e., fuel cells, electrolyzers, and batteries), as they facilitate ion transport, provide structural integrity, and improve the overall perform...

  • Article
  • Open Access
13 Citations
7,254 Views
15 Pages

Enhancing Alkaline Protease Stability through Enzyme-Catalyzed Crosslinking and Its Application in Detergents

  • Haichuan Yang,
  • Xiankun Ren,
  • Yating Zhao,
  • Tengjiao Xu,
  • Jing Xiao and
  • Hao Chen

21 March 2024

Enzymatic additives, particularly alkaline proteases, play a crucial role in enhancing detergent effectiveness against protein-based stains. Despite advancements in enzyme stabilization techniques, there is a need for innovative strategies to further...

  • Article
  • Open Access
6 Citations
3,375 Views
13 Pages

8 March 2023

Salinity negatively impacts crop productivity, yet neutral and alkali salt stresses are not often differentiated. To investigate these abiotic stresses separately, saline and alkaline solutions with identical concentrations of sodium (12 mM, 24 mM an...

  • Feature Paper
  • Article
  • Open Access
9 Citations
7,273 Views
13 Pages

Effects of Alkaline Pre-Etching to Metal Hydride Alloys

  • Tiejun Meng,
  • Kwo-Hsiung Young,
  • Chaolan Hu and
  • Benjamin Reichman

The responses of one AB5, two AB2, four A2B7, and one C14-related body-centered-cubic (BCC) metal hydrides to an alkaline-etch (45% KOH at 110 °C for 2 h) were studied by internal resistance, X-ray diffraction, scanning electron microscope, inductive...

  • Article
  • Open Access
10 Citations
4,015 Views
15 Pages

Interactions of Torrefaction and Alkaline Pretreatment with Respect to Glucose Yield of Hydrolyzed Wheat Straw

  • Jaya Tripathi,
  • Tom L. Richard,
  • Berrak Memis,
  • Ali Demirci and
  • Daniel Ciolkosz

19 October 2022

Torrefaction is known to reduce the logistical costs of biomass. Torrefied biomass’ prospects as feedstock for fermentation to liquid biofuel are largely unknown. This study investigated the interactions of torrefaction and alkaline pretreatmen...

  • Article
  • Open Access
11 Citations
4,376 Views
7 Pages

Sealing Ability of Alkaline Endodontic Cements versus Resin Cements

  • Yu-Yao Teoh,
  • Basil Athanassiadis and
  • Laurence J. Walsh

25 October 2017

Penetration of oral bacteria through root fillings leads to their long term failure. Dimensionally stable alkaline cements have been developed. A saliva challenge model was used to compare resistance to bacterial penetration of these alkaline cements...

  • Article
  • Open Access
12 Citations
2,686 Views
18 Pages

Alkaline Activation of Binders: A Comparative Study

  • Bianca Ignacio Almeida Alves,
  • Markssuel Teixeira Marvila,
  • José Alexandre Tostes Linhares Júnior,
  • Carlos Maurício Fontes Vieira,
  • Jonas Alexandre and
  • Afonso Rangel Garcez de Azevedo

30 January 2024

Binders formulated with activated alkali materials to replace Portland cement, which has high polluting potential due to CO2 emissions in its manufacture, have increasingly been developed. The objective of this study is to evaluate the main propertie...

  • Article
  • Open Access
5 Citations
2,003 Views
13 Pages

30 August 2023

The deterioration process and deterioration mechanism of magnesium oxychloride cement (MOC) in an alkaline environment were studied using a scanning electron microscope (SEM), an X-ray diffractometer (XRD), a Fourier transform infrared spectrometer (...

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