Article
Materials Science, Composites
Seyedehsan Hosseini, Robin Nilsson, Anna Strom, Anette Larsson, Gunnar Westman
Summary: Alkyl ketene dimers (AKDs) modify thermomechanical pulp (TMP) fibers, improving their compatibility and flow properties with polypropylene (PP) in composite materials.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Paper & Wood
Yujin Oh, Shin Young Park, Simyub Yook, Heenae Shin, Hak Lae Lee, Hye Jung Youn
Summary: This study prepared a waterproof cellulose nanofibril (CNF) sheet by depositing AKD on its controlled porous structure. The porosity of the CNF sheet was controlled by different drying conditions, and its effect on the hydrophobization and water-related barrier performance was investigated. The SD sheet exhibited super-hydrophobicity and a lower water vapor transmission rate compared to the HD sheet when immersed in an AKD wax solution. AKD filled in the pores of the SD sheet, giving rise to excellent waterproofing properties. The hydrophobized SD sheet performed similarly to a linear low-density polyethylene film as a water barrier material, confirming its potential for use in hydrogel packaging.
Article
Materials Science, Composites
Sena Caylak, Murat Ertas, Ayfer Donmez Cavdar, Naile Angin
Summary: The study demonstrated that the addition of AKD significantly improved the mechanical strength of hybrid PLA composites, but decreased the tensile and flexural moduli. Moreover, AKD also increased the contact angle of the composites. However, in the presence of glass fiber, AKD had no notable effect on the overall properties of the hybrid PLA composites.
POLYMER COMPOSITES
(2021)
Article
Green & Sustainable Science & Technology
Naile Angin, Sena Caylak, Murat Ertas, Ayfer Donmez Cavdar
Summary: This study investigated the influence of alkyl ketene dimer (AKD) on the chemical and thermal properties of natural fiber and glass fiber reinforced poly(lactic acid) composites. The results showed that the addition of AKD improved the crystallinity degree of the composites, but decreased the heat deflection temperature and thermal conductivity of some composites.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Biochemistry & Molecular Biology
Qingfei Duan, Xianyang Bao, Long Yu, Feihe Cui, Nisha Zahid, Fengsong Liu, Jian Zhu, Hongsheng Liu
Summary: This study developed a highly hydrophobic and mechanically reinforced starch-based film by mixing it with alkyl ketene dimer (AKD). The modified film showed improved water contact angle, reduced water vapor permeability, and enhanced mechanical properties. Considering the environmentally friendly and biodegradable nature of the components, these hydrophobic films have potential applications in food packaging.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Agricultural Engineering
Yanan Li, Rina Wu, Jiahui Shi, Liyan Ma, Shuai Liu, Gaosheng Wang, Peng Lu
Summary: A self-emulsifying AKD emulsion was obtained by modifying alkyl ketene dimer (AKD) with hemicellulose collected from waste water. The emulsion showed good stability without the need for additional surfactants. This emulsion can potentially be used as a coating for paper materials to enhance their barrier properties.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Materials Science, Multidisciplinary
Son Van Nguyen, Bong-Kee Lee
Summary: Alkyl ketene dimer (AKD) was used to enhance the water resistance and water vapor barrier properties of polyvinyl alcohol (PVA) films. The addition of 10% AKD significantly reduced water absorption and solubility of the PVA/AKD film, while also decreasing the water vapor transmission rate.
Article
Green & Sustainable Science & Technology
Petronela Nechita, Mirela Roman, Alina Cantaragiu Ceoromila, Andreea Veronica(Dediu) Botezatu
Summary: By chemically modifying xylan hemicellulose with alkyl ketene dimer (AKD), the hydrophobicity of xylan hemicellulose can be improved. Coating the paper surface with xylan hemicellulose and AKD resulted in improved barrier properties and mechanical strength. The results of this study contribute to expanding the applications of hemicelluloses in food packaging papers with appropriate barrier properties using biopolymer coating materials.
Article
Forestry
Teresa Lovaglio, Maurizio D'Auria, Wolfgang Gindl-Altmutter, Valentina Lo Giudice, Fausto Langerame, Anna Maria Salvi, Luigi Todaro
Summary: This research evaluated the multiple effects of thermal modification and AKD on deodar cedar wood surface, showing that AKD can enhance hydrophobicity of wood but may lead to degradation of amorphous cellulose component during irradiation test.
Article
Biochemistry & Molecular Biology
Son Van Nguyen, Bong-Kee Lee
Summary: This study used cellulose nanocrystals (CNCs) and alkyl ketene dimer (AKD) to improve the water resistance and mechanical properties of polyvinyl alcohol (PVA), enhancing its potential for food packaging applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Materials Science, Paper & Wood
Antti Korpela, Aayush Kumar Jaiswal, Atsushi Tanaka, Jaakko Asikainen
Summary: Recent laboratory-scale studies have shown that internal AKD sizing can enhance the wet strength of PAE wet-strengthened paper and this enhancement effect is long-lasting. This study further verifies the applicability of this enhancement effect in practice.
Article
Green & Sustainable Science & Technology
Zeshan Tian, Renfeng Zhang, Yuxin Liu, Jiasai Xu, Xinliang Zhu, Tingyao Lei, Kai Li
Summary: The study developed a coating containing hemicellulose, cellulose nanofibers, and montmorillonite to prolong the shelf life of green asparagus, while using alkyl ketene dimer to enhance structural stability and respiratory barrier properties of the film. This approach effectively reduced respiration rate and lignification-involved enzyme secretion in green asparagus.
Article
Materials Science, Paper & Wood
Liyan Ma, Shuai Liu, Jiahui Shi, Rina Wu, Peng Lu
Summary: Sustainable coatings have potential in enhancing the oil resistance of packaging paper. Alkyl ketone dimer (AKD) was used to esterify sodium alginate (SA) and prepare water and oil resistant agent SAD. The coated paper showed improved barrier performance by reducing surface energy and blocking fiber pores. It also exhibited good resistance to hot castor oil and enhanced resistance to organic solvents and water.
NORDIC PULP & PAPER RESEARCH JOURNAL
(2023)
Article
Multidisciplinary Sciences
Saba Zia Hassan, Jonas Tauch, Milaim Kas, Markus Noetzold, Henry Lopez Carrera, Eric S. Endres, Roland Wester, Matthias Weidemueller
Summary: This study investigates the AED reactions between hydroxyl anions and rubidium atoms, revealing different dynamics for collisions with ground and excited state rubidium. The experimental results are in good agreement with ab initio calculations, and steric effects are revealed.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Medicinal
Maximilian Meixner, Martin Zachmann, Sebastian Metzler, Jonathan Scheerer, Martin Zacharias, Iris Antes
Summary: Macrocycles are challenging molecules for computational modeling studies, but the accurate prediction of their bioactive conformations can be achieved through the optimization of sampling and docking processes.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2022)
Article
Chemistry, Multidisciplinary
Wafa A. Bawazir, Maymoona A. Al-Mahmood, Rawan S. Almalki, Ghadi F. Alofi, Raghad S. Alharbi, Zoya Zaheer
Summary: This study investigates the interaction between sulfathiazole and three types of surfactants using UV-visible spectroscopy and conductivity measurements. The results show that the critical micelle concentration of cationic and anionic surfactants decreases with increasing sulfathiazole concentration, while the interaction with non-ionic surfactant is weak.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Musaad K. Aleid, Khalid N. Alharbi, Mona A. Aljufareen, Areej S. Aloliwi, Alhanouf K. Almutairi, Rahaf S. Alsaif, Nada K. Alshayeb, Mohammed S. Almoiqli
Summary: This study assessed the levels of trihalomethane compounds in the water network of Riyadh city and identified the factors influencing their formation. The concentrations of trihalomethane compounds were within the permissible limits, indicating the water's safety for human consumption. The presence of bromide ions, organic carbon, free chlorine, and pH values were found to affect trihalomethane formation.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Said Arhzaf, Jamal Houssaini, Mohammed Naciri Bennani, Marwa Alaqarbeh, Mohammed Bouachrine
Summary: The study shows that Mg-Al hydrotalcite catalysts intercalated with acetate and carbonate anions exhibit superior catalytic activity in the aldol condensation reaction between furfural and acetone. The optimal reaction conditions are at 90 degrees C for 2 hours, achieving conversion rates of over 98% with high selectivity towards F2A for the acetate catalyst.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Uyen-Chi Nguyen Le, Ngoc Xuan Dat Mai, Kieu-Minh Le, Hoang Anh Vu, Huynh-Nhu Thi Tran, Tan Le Hoang Doan
Summary: This study aimed to enhance the bioavailability of rosmarinic acid, a bioactive compound with high anticancer activity, by encapsulating it in tetrasulfide-based porous organosilica nanoparticles. The synthesized nanoparticles were small in size and had a high surface area and an average pore diameter. The nanoparticles showed effective accumulation in cancer cells without toxicity to normal cells. Treatment with rosmarinic acid-containing nanoparticles resulted in significant cell death in cancer cells. Overall, these findings suggest that the synthesized nanoparticles can enhance the pharmacological effects of rosmarinic acid.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jiamin Qi, Hengxi Zhu, Tianyu Yang, Xingyuan Wang, Zixuan Wang, Xiaoli Lei, Bin Li, Wenmin Qian
Summary: This study synthesized a novel iron-biochar adsorbent using the iron content in red mud to remove heavy metals from wastewater. The adsorbent showed excellent removal efficiency and sustainability. This method addresses both industrial waste recovery and heavy metal adsorption issues.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Bo Yi, Li Zhang, Haiyang Zhou
Summary: Plasma protein binding plays a crucial role in the pharmacokinetics and pharmacodynamics of therapeutic bioactive materials. In this study, the interaction of nordentatin, a member of coumarins, with human alpha-1 acid glycoprotein (AGP) was investigated, and the anticancer potency of nordentatin against human colorectal cancer cells was evaluated. The results showed that nordentatin binds to AGP through a static quenching mechanism and exhibits inhibitory effects on the growth of HCT-116 cells by increasing intracellular ROS and [Ca2+] levels and triggering apoptosis-related gene overexpression. Therefore, nordentatin could be a promising plant-based therapy for colorectal cancer.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qiming Pang, Cui Wang, Bangtao Li, Suli Zhang, Jiaoyang Li, Shuo Gu, Xueyu Shi
Summary: This study evaluated the effects of resveratrol loaded in copolymer nanoparticles on cerebral ischemia/reperfusion (I/R) injury in rats. The results showed that RES.CP.NPs could have neuroprotective effects through their antioxidant and anti-inflammatory activities, leading to improved neurological disability scores and decreased oxidative stress levels.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Maryam Rachmawati Sumitra, Lung-Ching Chen, Wei-Chen Tsai, Muhamad Ansar, Bashir Lawal, Ntlotlang Mokgautsi, Jih-Hwa Guh, Alexander T. H. Wu, Hsu-Shan Huang
Summary: Tetraheterocyclic compounds derived from natural sources and contemporary pharmaceuticals have shown promise as multitarget therapeutic agents. In this study, a series of synthesized compounds were evaluated for their potential in breast cancer treatment. Compounds 18 and 20 demonstrated significant antiproliferative activity against breast cancer cell lines and their mode of action was revealed through molecular docking simulations.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Mohammad Khosravani, Mohsen Dehghani Ghanatghestani, Farid Moeinpour, Hossein Parvaresh
Summary: The aim of removing Pb(II) from water is to minimize the potential harm posed by toxic metals to both human health and the environment. A covalent organic framework adsorbent called TFPOTDB-SO3H was developed with excellent properties such as high repeatability, selectivity, and easy solid-liquid separation. The adsorbent showed impressive capability of adsorbing Pb(II) and effective removal of it from a solution with various ions, suggesting its potential for effectively adsorbing and removing Pb(II) heavy metal ions from wastewater.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Ashraf H. Farha, Mohamed S. Shams, Hasna A. Alali, Zakia H. Alhashem, Shehab A. Mansour, Shrouq H. Aleithan, Ragab A. Elsad
Summary: The current study examines the dielectric and thermal properties of transformer oil incorporated with Mn0.5 Zn0.5 Fe2O4 nanoparticles. The results show that the addition of Mn-Zn ferrite NPs improves the dielectric constant, dissipation factor, AC breakdown voltage, and convective heat transfer of the nanofluid.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Limin Hou, Zongpei Jiang, Minqi Ye, Xueyan Sun, Kexin Liu, Yifan Zhu, Xiaoyu Wang, Liangzhu Chen, Ruiheng Gu, Binghu Fang
Summary: The excessive accumulation of antibiotic residue in animal-derived foods poses a threat to health. Therefore, it is necessary to establish a rapid, simple, effective, safe, and highly sensitive method for detecting lincomycin residues. By using a pre-column derivatization method on high-performance liquid chromatography equipped with ultraviolet, the UV absorption of lincomycin is improved, allowing for detection and quantification.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Kun Tang, Xin-Xin Wang, Jin-Jin Zhao, Ning Ren, Jian-Jun Zhang
Summary: This study reports the synthesis, crystal structures, and thermal degradation properties of three new rare earth coordination compounds. Compounds 1-3 exhibit binuclear structures which can form chain-like structures via hydrogen bonding. Compound 2 shows potential application value in the orange-red luminescence region.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Seoyoun Yang, Eunbi Yu, See-Hyoung Park, Sae Woong Oh, Kitae Kwon, Su Bin Han, Soo Hyun Kang, Jung Hyun Lee, Heejun Ha, Minkyung Song, Jae Youl Cho, Jongsung Lee
Summary: This study investigated the effects of blue light on the hypodermis and found that it has antiadipogenic properties by reducing lipid accumulation and downregulating the expression of adipogenic genes. Blue light also increased the phosphorylation of PPAR gamma and TRPV1, suggesting its anti-adipogenic effect through these signaling pathways.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Abdul Nasir, Abdul Waheed Khan, Hamid Rafiq Khattak, Abdus Samad, Sami Ullah, Haroon Khan, Muhammad Faheem, Qian Bai
Summary: This study evaluated the effects of isoxazolone derivatives on cisplatin-induced neuropathy in a rat model. The results showed that isoxazolone derivatives effectively reversed mechanical allodynia, similar to the known therapeutic agent pregabalin. Molecular docking analysis indicated that isoxazolone derivatives have strong binding affinity for relevant receptors and potential inhibitory activity against relevant signaling pathways. This study has innovative implications for the treatment of cisplatin-induced neuropathic pain.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Shahid Wahab, Haroon Muhammad Ali, Maham Khan, Tariq Khan, Chandran Krishnaraj, Soon-Il Yun
Summary: In this study, we synthesized chitosan nanoparticles, silver nanoparticles, and chitosan/silver nanocomposites using aqueous ginger extract as a green approach. These nanomaterials showed significant antibacterial properties and low toxicity. Furthermore, the nanomaterials conjugated with tobramycin demonstrated enhanced antibacterial efficacy and exhibited interactions with Pseudomonas aeruginosa.
ARABIAN JOURNAL OF CHEMISTRY
(2024)