Article
Biochemistry & Molecular Biology
Jialin Fu, Jia Xin Yap, Choe Peng Leo, Chun Kiat Chang
Summary: In this study, carboxymethyl cellulose (CMC)/sodium alginate (SA) hydrogel beads were modified with calcium carbonate (CaCO3) and/or bentonite (Be) to improve phosphate adsorption. Incorporation of CaCO3 nanoparticles into CMC/SA/Be hydrogel beads significantly enhanced phosphate adsorption. The kinetics of methylene blue (MB) adsorption by hydrogel beads followed the pseudo-second-order model, while phosphate adsorption followed the Elovich model. Furthermore, Langmuir isotherm fitted the phosphate adsorption by CMC/SA/Be/CaCO3 hydrogel beads, indicating improved phosphate adsorption through chemical interaction.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Multidisciplinary
Zhaowei Ou, Baokun Liang, Zihao Liang, Fanglin Tan, Xin Dong, Li Gong, Pei Zhao, Honglei Wang, Yuhai Zou, Yuanjun Xia, Xudong Chen, Wei Liu, Haoyuan Qi, Ute Kaiser, Zhikun Zheng
Summary: This study presents a general strategy for the creation of 2D crystals of covalent organic frameworks (COFs) on the water surface, assisted by a charged polymer. Thin films of 2D COFs with large single-crystalline domains have been achieved, and key factors in the formation of larger single-crystalline domains are revealed. The synthesis method shows a high level of generality and has potential for further investigation and applications in electronics.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Polymer Science
Premjit Arpornmaeklong, Natthaporn Jaiman, Komsan Apinyauppatham, Asira Fuongfuchat, Supakorn Boonyuen
Summary: The ratio of nanohydroxyapatite particles to calcium carbonate microcapsules in a beta-glycerophosphate-crosslinked chitosan/collagen hydrogel was adjusted to improve its osteoconductive and injectable properties. It was found that the calcium carbonate microcapsules-nanohydroxyapatite hydrogels with 5% nanohydroxyapatite particles exhibited homogeneous distribution, improved mechanical properties, permeability, and sustained release of quercetin. These hydrogels showed noncytotoxicity and biocompatibility.
Article
Biotechnology & Applied Microbiology
Jialin Fu, Choe Peng Leo, Pau Loke Show
Summary: This review compares the synthesis routes and applications of pH-responsive CaCO3-based drug delivery systems, non-drug delivery systems, imaging techniques, sensors, and templates. Various methods have been developed to build pH-responsive solutions using biocompatible calcium carbonate (CaCO3). The review identifies the novelty, limitations, and potential applications of each synthesis and application. The use of CaCO3 in drug delivery systems shows great potential for cancer treatment, with impregnation and encapsulation being widely used. In addition, CaCO3 has been utilized in ultrasound imaging, sensors, and sacrificial templates, showcasing its versatility.
BIOCHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Jack Campbell, Jordan Abnett, Georgia Kastania, Dmitry Volodkin, Anna S. Vikulina
Summary: Polymer layer-by-layer assembly is a promising method for advanced drug delivery platforms and biomimetic materials, but the design of biopolymer capsules poses challenges. This study examines the formation mechanism of multilayer biocapsules templated upon CaCO3 crystals and evaluates the structure-property relationship of capsules made of different biopolymers.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Inorganic & Nuclear
Fujun Yao, Xun Liu, Chaoqun Wu, Xin Yang, Yan Wang, Wenyuan Hu, Chonghua Pei
Summary: This study investigates the biomimetic potential of using amorphous CaCO3 (ACC) to mimic crustacean exoskeletons and optimize their physical and chemical properties. The researchers prepared monodisperse ACC microspheres with high sphericity and hardness using the gas diffusion method in the presence of Mg2+. The stability of ACC was found to be affected by environmental conditions, but the microspheres showed high stability under ambient conditions. This research provides guidance for the preparation of ACC biomimetic composites and enhances the understanding of biomineralization mechanisms.
INORGANIC CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Anna S. Vikulina, Jack Campbell
Summary: An undeniable trend in modern bioengineering and nanotechnology is the use of various biomolecules, primarily polymeric, for designing novel functional materials in controlled drug delivery, bioimaging, tissue engineering, and other bioapplications. Biogenic polymers with features like biocompatibility, biodegradability, replicating natural cellular microenvironments, and minimal toxicity, have gained growing interest as building blocks for fourth-generation biomaterials. Recent studies highlight the promise of hard-templating approach in fabricating nano- and microparticles using biopolymers, covering up-to-date knowledge on this topic and assessing the progress and challenges in the field.
Article
Polymer Science
Alexey V. Dubrovskii, Aleksandr L. Kim, Egor V. Musin, Bulat R. Ramazanov, Sergey A. Tikhonenko
Summary: Polyelectrolyte microcapsules, obtained by adsorbing oppositely charged polyelectrolytes onto colloidal particles, have been found to possess buffer capacity. Microcapsules with BSA exhibit higher buffer capacity in acidic medium compared to those without protein. The composition of microcapsules affects their buffer capacity behavior.
Article
Engineering, Environmental
Dasol Choi, Soyoung Noh, Youngjune Park
Summary: Calcium looping (CaL)-based solar to thermochemical energy storage is a promising option for long-term thermal energy storage in concentrated solar power generation. In this study, multi-doping of transition metals and CaCl2 was investigated to enhance the optical absorption and carbonation reactivity of synthetic CaO-based materials. The proposed materials exhibited significantly enhanced optical absorption and maintained high performance throughout multiple cycles of CaL reactions. The reaction mechanism was studied, and a salt-promoted carbonation mechanism was proposed to improve the mass transfer of Ca2+O2- to adsorbed CO2. Based on the findings, the synergistic use of CaCl2 multi-doping method for synthetic CaO designs is suggested.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Pharmacology & Pharmacy
Ahmed M. Omer, Maha S. Ahmed, Gehan M. El-Subruiti, Randa E. Khalifa, Abdelazeem S. Eltaweil
Summary: Alg-CMCs@AmCs dual polyelectrolyte complexes were successfully employed as a pH-sensitive drug carrier for efficient encapsulation and release of diclofenac sodium. The developed microcapsules showed excellent stability and high encapsulation efficiency under colonic conditions, suggesting great potential for practical applications.
Article
Engineering, Environmental
Javier Bravo-Venegas, Ines Prado-Acebo, Beatriz Gullon, Thelmo A. Lu-Chau, Gemma Eibes
Summary: Apple pomace (AP), a lignocellulosic residue, can be used to produce butanol by acetone-butanol-ethanol (ABE) fermentation. The prevention of acid crash occurrence in C. beijerinckii CECT 508 cultures was optimized by adjusting pH, CaCO3 concentration, and culture temperature. The optimal conditions of pH 7, 6.8 g/L CaCO3, and 30 degrees C resulted in a butanol production of 10.75 g/L. Additionally, the comparison between the supernatant of AP hydrolysate and the full hydrolysate indicated the possibility of eliminating the centrifugation step and achieving a zero-waste approach.
Article
Chemistry, Multidisciplinary
Andrei Ushkov, Andrey Machnev, Pavel Ginzburg
Summary: This study develops a flexible platform to investigate the interaction between single particles and fluid, enabling controllable release of functional materials from capsules. The results demonstrate that the release rate of drug cargos in capsules can be controlled in vitro, promoting the application of inorganic mesoporous nanoparticles as a nanomedicine platform.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Biochemistry & Molecular Biology
Alexey Dubrovskii, Aleksandr L. Kim, Egor Musin, Sergey A. Tikhonenko
Summary: Polyelectrolyte microcapsules (PMCs) are being studied for their buffer capacity, which is influenced by factors such as salt concentration, type, and incubation temperature. Increasing NaCl concentration to 1 M enhances buffer capacity of PMCs at pH >= 5, while higher concentrations do not further change the buffer capacity. Additionally, heated PMCs showed a decrease in buffer capacity with increasing temperature, which could be attributed to changes in the composition.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Thermodynamics
Joey Aarts, Bas van Ravensteijn, Hartmut Fischer, Olaf Adan, Henk Huinink
Summary: This study presents a one-pot synthesis method for creating salt hydrate composites with enhanced mechanical stability. The use of poly (dimethyl siloxane) as a binder allows for the production of mm-sized particles. The results demonstrate that these composites exhibit stable mechanical properties during cycling and achieve high energy densities and power outputs.
Article
Chemistry, Physical
Stephanie C. de Morais, Breno G. P. Bezerra, Bruno B. Castro, Rosangela de C. Balaban
Summary: Polyelectrolytes complexes (PEC) based on poly(epichlorohydrin-co-dimethylamine) (EPI-DMA) and poly (4-styrene-sulfonic acid-co-maleic acid) (PSSMA) were prepared for polyphosphates encapsulation, with optimized formulation showing good stability and excellent inhibition efficiency in real oil well conditions.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)