JCIS open Pub Date : 2025-07-21 DOI: 10.1016/j.jciso.2025.100144

Ratnaningsih Eko Sardjono , Ramdhan Gunawan , Asep Kadarohman , Budiman Anwar , Hamidie Ronald Daniel Ray , Suci Nur Vikasari , Erdiwansyah , Siti Fatimah , Young Gun Ko

{"title":"Encapsulation of Mucuna pruriens seed extract using nanocellulose and its evaluation for Parkinson's treatment","authors":"Ratnaningsih Eko Sardjono , Ramdhan Gunawan , Asep Kadarohman , Budiman Anwar , Hamidie Ronald Daniel Ray , Suci Nur Vikasari , Erdiwansyah , Siti Fatimah , Young Gun Ko","doi":"10.1016/j.jciso.2025.100144","DOIUrl":"10.1016/j.jciso.2025.100144","url":null,"abstract":"<div><div><em>Mucuna pruriens</em> (MP), a natural source of L-DOPA, holds potential as a Parkinson's disease (PD) treatment. This study developed two encapsulation systems for MP using nanocellulose (NC-MP) and nanocellulose-chitosan-tripolyphosphate (NCT-MP) to enhance therapeutic efficacy. The encapsulation process was performed via ultrasonication and characterized by FTIR, SEM, and TEM, revealing polydisperse spherical particles with sizes of 566.37 ± 37.41 nm (NC-MP) and 756.66 ± 51.44 nm (NCT-MP). The anti-parkinsonian effects were evaluated in a catalepsy-induced mouse model using the horizontal bar test. Both encapsulated systems significantly reduced catalepsy duration (∗p∗ < 0.001). NC-MP demonstrated superior efficacy at low doses (5–20 mg/kg), attributed to its smaller particle size and neutral charge, which may facilitate blood-brain barrier penetration. In contrast, NCT-MP showed enhanced effects at 25 mg/kg, likely due to chitosan's cationic charge promoting active transport and tripolyphosphate-mediated matrix stabilization. These findings highlight the potential of encapsulation systems to optimize MP's therapeutic profile, with formulation efficacy dependent on dosage requirements.</div></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":"19 ","pages":"Article 100144"},"PeriodicalIF":0.0,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From surface design to cellular Response: Insights into aryl-functionalized iron oxide nanoparticles with and without protein corona 从表面设计到细胞反应：有或没有蛋白冠的芳基功能化氧化铁纳米颗粒的见解

JCIS open Pub Date : 2025-07-17 DOI: 10.1016/j.jciso.2025.100143

Solange Mailen Selzer , Laura Vanesa Bonnet , María Belén Piccoli , Santiago Daniel Salas , Mauricio Galiano , Raquel Viviana Vico , Nancy Fabiana Ferreyra

{"title":"From surface design to cellular Response: Insights into aryl-functionalized iron oxide nanoparticles with and without protein corona","authors":"Solange Mailen Selzer , Laura Vanesa Bonnet , María Belén Piccoli , Santiago Daniel Salas , Mauricio Galiano , Raquel Viviana Vico , Nancy Fabiana Ferreyra","doi":"10.1016/j.jciso.2025.100143","DOIUrl":"10.1016/j.jciso.2025.100143","url":null,"abstract":"<div><div>Iron oxide magnetic nanoparticles (IONPs) are widely utilized in biomedical and industrial applications due to their unique properties, including biocompatibility, superparamagnetism, and ease of functionalization. However, their behavior in biological environments is heavily influenced by surface functionalization and the formation of the protein corona. This study investigates the impact of aryl-functionalization of iron oxide nanoparticles with carboxylic and amine groups on colloidal stability, protein corona formation, and biological interactions. The IONPs were synthesized and characterized for their physicochemical properties, including size, zeta potential, magnetic properties, and dispersibility in different media. The interaction of the nanoparticles with dipalmitoylphosphatidylcholine monolayers, as a model membrane, was evaluated. Cytotoxicity and autophagy induction were assessed in Chinese hamster ovary (CHO-K1) and cervical cancer (HeLa) cells, respectively. The results demonstrate that surface functionalization significantly alters protein corona composition, which in turn modulates nanoparticle stability, cellular uptake, and biological responses. The aryl-functionalized nanoparticles exhibited reduced interactions with cell membranes compared to unfunctionalized counterparts, and also lower autophagy induction, emphasizing the importance of surface design in minimizing adverse effects.</div></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":"19 ","pages":"Article 100143"},"PeriodicalIF":0.0,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced biomedical performance of magnetic Fe3O4@chitosan nanocomposites: A comparative study of synthesis methods for hyperthermia and chemotherapy applications 磁性Fe3O4@chitosan纳米复合材料增强生物医学性能：热疗和化疗应用合成方法的比较研究

JCIS open Pub Date : 2025-05-30 DOI: 10.1016/j.jciso.2025.100142

Ahmed F. Aman , Omayma A. Ghazy , Hoda Saleh , Ismaiel A. Ali , Neamat H. Ahmed , Sameh A. Rizk , Zakaria I. Ali

{"title":"Enhanced biomedical performance of magnetic Fe3O4@chitosan nanocomposites: A comparative study of synthesis methods for hyperthermia and chemotherapy applications","authors":"Ahmed F. Aman , Omayma A. Ghazy , Hoda Saleh , Ismaiel A. Ali , Neamat H. Ahmed , Sameh A. Rizk , Zakaria I. Ali","doi":"10.1016/j.jciso.2025.100142","DOIUrl":"10.1016/j.jciso.2025.100142","url":null,"abstract":"<div><div>This study investigates the synthesis of magnetite/chitosan nanocomposites (Fe<sub>3</sub>O<sub>4</sub>@CS) using <em>in-situ</em> and <em>ex-situ</em> methods. The nanocomposites were characterized by FTIR, XRD, TEM, and VSM analyses. Their potential in nanomedicine was assessed through chemosensitivity tests on Ehrlich ascites carcinoma (EAC) and hyperthermic performance under an alternating magnetic field. The particle size of Fe<sub>3</sub>O<sub>4</sub> nanoparticles was 10–20 nm and 20–40 nm for <em>in-situ</em> and <em>ex-situ</em> prepared samples as revealed by TEM images. FTIR indicated strong interactions between magnetite and chitosan, while XRD revealed a more uniform crystalline structure of Fe<sub>3</sub>O<sub>4</sub> nanoparticles in <em>ex-situ</em> prepared samples. VSM analysis showed higher magnetization saturation for the <em>ex-situ</em> samples, with magnetization decreasing as chitosan content increased. <em>In vitro</em> assays demonstrated that both synthesis routes influenced the cytotoxicity of the nanocomposites against EAC cells, with <em>in-situ</em> samples showing greater early-stage cytotoxicity causing 40 % reduction in cell viability at 10 μg/mL. Under an alternating magnetic field, Fe<sub>3</sub>O<sub>4</sub>@CS nanocomposites reached therapeutic hyperthermia temperatures, with <em>in-situ</em> samples achieving 40.1–41.4 °C and <em>ex-situ</em> samples reaching 41–43 °C. These results highlight the importance of synthesis method and chitosan content in tailoring Fe<sub>3</sub>O<sub>4</sub>@CS nanocomposites for efficient and targeted hyperthermia-based cancer treatment.</div></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":"19 ","pages":"Article 100142"},"PeriodicalIF":0.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144231275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A clear-cut synthesis of silver nanoparticles using glycerol as a multipurpose medium toward catalytic hydrogenation and antibacterial 用甘油作为催化加氢和抗菌的多用途介质合成纳米银

JCIS open Pub Date : 2025-05-27 DOI: 10.1016/j.jciso.2025.100141

Van-Hoa Nguyen , Hoa-Hung Lam , Minh-Tam K. Nguyen , Thi-An-Sa Do , Hong-Phuong Phan , Trung Dang-Bao

{"title":"A clear-cut synthesis of silver nanoparticles using glycerol as a multipurpose medium toward catalytic hydrogenation and antibacterial","authors":"Van-Hoa Nguyen , Hoa-Hung Lam , Minh-Tam K. Nguyen , Thi-An-Sa Do , Hong-Phuong Phan , Trung Dang-Bao","doi":"10.1016/j.jciso.2025.100141","DOIUrl":"10.1016/j.jciso.2025.100141","url":null,"abstract":"<div><div>Adapting for a green and safe protocol, this work developed a straightforward polyol method for synthesizing spherical silver nanoparticles (AgNPs), with a median size of 12.2 nm in glycerol at a low temperature (60 °C). The multipurpose nature of glycerol, acting as both a reductant and an immobilizer, was explored, demonstrating the long-term stability of AgNPs in the resulting colloidal solution. The stability of AgNPs in glycerol was also contrasted with their stability in water and other polyols. The multiple applications of AgNPs in glycerol included their use as antibacterial agents (against both <em>E. coli</em> and <em>S. aureus</em> strains) and as an eco-friendly catalyst. At room temperature, the selective hydrogenation of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) obeyed a pseudo first-order kinetic model, exhibiting a rate constant of 0.1064 min<sup>−1</sup>. The kinetic and thermodynamic results confirmed that the rate-determining step involved an electron-transfer process from adsorbed hydrogen to 4-nitrophenolate on the AgNPs surface. Utilizing glycerol as a non-toxic solvent, this colloidal AgNPs solution can be easily stored and directly used without any additional purification.</div></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":"19 ","pages":"Article 100141"},"PeriodicalIF":0.0,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Colloidal structure, energy extensivity and Monte Carlo sampling properties of improved short-range interaction models for surfactant-coated magnetic nanoparticles 表面活性剂包覆磁性纳米颗粒改进的短程相互作用模型的胶体结构、能量延展性和蒙特卡罗采样特性

JCIS open Pub Date : 2025-05-13 DOI: 10.1016/j.jciso.2025.100138

Aimê Gomes da Mata Kanzaki , Tiago de Sousa Araújo Cassiano , João Valeriano , Fabio Luis de Oliveira Paula , Leonardo Luiz e Castro

{"title":"Colloidal structure, energy extensivity and Monte Carlo sampling properties of improved short-range interaction models for surfactant-coated magnetic nanoparticles","authors":"Aimê Gomes da Mata Kanzaki , Tiago de Sousa Araújo Cassiano , João Valeriano , Fabio Luis de Oliveira Paula , Leonardo Luiz e Castro","doi":"10.1016/j.jciso.2025.100138","DOIUrl":"10.1016/j.jciso.2025.100138","url":null,"abstract":"<div><div>The standard DLVO theory offers a limited description of ionic-surfacted magnetic colloids in near aggregation regimes. Correcting the electrical double layer term for ionic surfactants is not enough to successfully simulate the systems. The correction of the van der Waals energy divergence at short interparticle distances is fundamental for proper Monte Carlo sampling of nanoparticles’ configurations. We compare different short-range interaction models and show that a more detailed model leads to Monte Carlo simulations that better match theoretical expectations. Studying the energy scaling with the number of particles, we observe a slight deviation from energy extensivity across all models, small but still detectable via Akaike’s information criterion. The more detailed model predicts a strong effect of particle-size dispersity on the transition between overall attraction and repulsion. More precise modeling can significantly affect numerical predictions, in particular, the effect of particle-size dispersity on the spatial structure of colloids with high volume fraction. This emphasizes the importance of nailing down better models for describing complex colloidal dispersions.</div></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":"18 ","pages":"Article 100138"},"PeriodicalIF":0.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Green approach to La2O3/ZnO nanocomposites synthesis via Jatropha curcas latex: Implications in photocatalysis 利用麻疯树乳胶合成La2O3/ZnO纳米复合材料的绿色途径：在光催化中的意义

JCIS open Pub Date : 2025-05-05 DOI: 10.1016/j.jciso.2025.100140

Amit Sharma, Sahil Singh, Khyati Sharma, Kamal Thakur, Khushbu Choudhary, Aastha Patial, Tamana, Vikas Dhiman

{"title":"Green approach to La2O3/ZnO nanocomposites synthesis via Jatropha curcas latex: Implications in photocatalysis","authors":"Amit Sharma, Sahil Singh, Khyati Sharma, Kamal Thakur, Khushbu Choudhary, Aastha Patial, Tamana, Vikas Dhiman","doi":"10.1016/j.jciso.2025.100140","DOIUrl":"10.1016/j.jciso.2025.100140","url":null,"abstract":"<div><div>This study presents a comprehensive investigation into the synthesis of zinc oxide (ZnO) nanoparticles and lanthanum oxide (La<sub>2</sub>O<sub>3</sub>)/ZnO nanocomposites using Jatropha curcas latex, emphasizing a sustainable green chemistry methodology. Characterization techniques, including X-ray diffraction (XRD), photoluminescence (PL) spectroscopy, scanning electron microscopy (SEM), and zeta sizer analysis, were employed to elucidate the crystalline structure, optical properties, morphology, and stability of the synthesized materials. The photocatalytic efficacy of the synthesized nanomaterials was rigorously evaluated for the solar-driven photocatalytic removal of methylene blue (MB) dye. Through systematic optimization, an optimal dosage of 3 mg/mL for the La<sub>2</sub>O<sub>3</sub>/ZnO nanocomposite was identified, demonstrating a significant enhancement in degradation efficiency over ZnO nanoparticles. Under these optimized conditions, the La<sub>2</sub>O<sub>3</sub>/ZnO catalyst achieved up to 87.71 % removal of MB (initial concentration of 10 mg/L in 100 mL) within 120 min of exposure to natural sunlight. Additionally, under UV irradiation, the MB solution exhibited an exceptional 95.16 % photodegradation, with an estimated rate constant of 0.03224 min<sup>−1</sup> after 90 min of treatment with the La<sub>2</sub>O<sub>3</sub>/ZnO nanocomposite. To further assess the performance and applicability of the photocatalysts, recyclability studies, scavenger studies, and hot filtration tests were conducted, confirming the potential of eco-friendly La<sub>2</sub>O<sub>3</sub>/ZnO nanocomposites as effective agents for sustainable environmental remediation strategies. This research not only advances the field of photocatalysis but also contributes to the development of sustainable materials for pollution mitigation.</div></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":"18 ","pages":"Article 100140"},"PeriodicalIF":0.0,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143916615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced corrosion resistance of aluminum 6061 alloy using Ti-based thin films and plasma nitriding 采用ti基薄膜和等离子渗氮增强6061铝合金的耐蚀性

JCIS open Pub Date : 2025-04-28 DOI: 10.1016/j.jciso.2025.100139

Margono , Djarot B. Darmadi , Femiana Gapsari , Teguh Dwi Widodo , Bayu Mahdi Kartika

引用次数: 0

Selective flotation of carbonate minerals 碳酸盐矿物的选择性浮选

JCIS open Pub Date : 2025-04-24 DOI: 10.1016/j.jciso.2025.100137

Manas Barai , Tanmay Dutta , Anuttam Patra

{"title":"Selective flotation of carbonate minerals","authors":"Manas Barai , Tanmay Dutta , Anuttam Patra","doi":"10.1016/j.jciso.2025.100137","DOIUrl":"10.1016/j.jciso.2025.100137","url":null,"abstract":"<div><div>This study explores the selective flotation of carbonate minerals-dolomite, magnesite, and calcite using amino acid-based single- and double-headed collectors. The separation efficiency was evaluated using microflotation experiments, ζ potential measurements, UV–Vis spectroscopy, FTIR spectroscopy, and molecular modelling. The study aimed to understand how the molecular architecture of collectors influences their adsorption behaviour on mineral surfaces, leading to selective flotation.</div><div>Flotation recoveries were measured at both natural and pH 10.5 conditions. The monocarboxylate collector (C<sub>12</sub>GlyNa) demonstrated high but non-selective recovery across all three minerals. In contrast, the double-headed collector, disodium <em>N</em>-dodecyl aminomalonate (C<sub>12</sub>MalNa<sub>2</sub>), exhibited strong selectivity, particularly for magnesite, due to optimal geometric matching between its head groups and the Mg-Mg atomic distances on the mineral surface. The amount of collector adsorbed was determined by UV–Vis analysis, while FTIR confirmed surface adsorption through characteristic alkyl stretching bands. ζ potential measurements supported these findings, showing that increased adsorption led to greater negative charge development on mineral surfaces. Molecular modelling further revealed that selective adsorption occurs when the collector's head group spacing aligns with metal-metal distances on the mineral surface, enabling effective electrostatic interactions.</div><div>These results highlight the potential for designing tailored collectors based on molecular recognition principles, offering a pathway for more efficient and selective flotation of carbonate minerals.</div></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":"18 ","pages":"Article 100137"},"PeriodicalIF":0.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143894967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of novel step-scheme TiO2-WO3 nanostructured heterojunction towards morphology-driven enhancement of photocatalytic hydrogen evolution 新型阶梯结构TiO2-WO3纳米异质结的构建及其光催化析氢性能的增强

JCIS open Pub Date : 2025-04-19 DOI: 10.1016/j.jciso.2025.100136

M. Rebeca Sofiya Joice , Priya Ranjan Dev , E. Iyyappan , T. Manovah David , Nithya Thangavel , Bernaurdshaw Neppolian , P. Wilson

{"title":"Construction of novel step-scheme TiO2-WO3 nanostructured heterojunction towards morphology-driven enhancement of photocatalytic hydrogen evolution","authors":"M. Rebeca Sofiya Joice , Priya Ranjan Dev , E. Iyyappan , T. Manovah David , Nithya Thangavel , Bernaurdshaw Neppolian , P. Wilson","doi":"10.1016/j.jciso.2025.100136","DOIUrl":"10.1016/j.jciso.2025.100136","url":null,"abstract":"<div><div>Photocatalytic hydrogen evolution driven via solar energy is an efficient and sustainable method for hydrogen synthesis. The use of titania (TiO<sub>2</sub>), an efficient photocatalyst in hydrogen generation, can be improved further by reducing the recombination rate of photoinduced charge carriers. In this context, WO<sub>3</sub> is a viable material to boost TiO<sub>2</sub> photoefficiency. In the present study, 1D TiO<sub>2</sub> nanotube/WO<sub>3</sub> nanorod (TN-WR) Step-scheme (S-scheme) heterojunction was fabricated via a facile impregnation method. XRD studies confirmed the anatase phase of TiO<sub>2</sub> and the monoclinic phase of WO<sub>3</sub>. Morphological studies revealed the 1D microstructure of the nanocomposite with a mesoporous surface. UV-DRS and PL profiles displayed a bathochromic shift in wavelength signifying the activation of the nanocomposite in the visible region. XPS studies indicated the generation of defective sites in TiO<sub>2</sub> upon incorporation of WO<sub>3</sub>. Thus, the novel 1D TN-WR S-scheme heterojunction nanocomposite demonstrates a remarkably high photocatalytic hydrogen generation rate of 1761 μmol g<sup>−1</sup>h<sup>−1</sup>. In order to investigate the role of morphology in hydrogen evolution, TiO<sub>2</sub>/WO<sub>3</sub> nanocomposites with spherical morphologies were considered for comparison. This study provides a novel insight into the design of semiconductor heterojunction photocatalysts for efficient hydrogen evolution while avoiding the use of noble metals.</div></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":"18 ","pages":"Article 100136"},"PeriodicalIF":0.0,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Consolidation of carbonates using hydrolysed polyacrylamide: Effect of temperature, pressure, salinity, and nanoparticle crosslinking 用水解聚丙烯酰胺固结碳酸盐：温度、压力、盐度和纳米颗粒交联的影响

JCIS open Pub Date : 2025-03-28 DOI: 10.1016/j.jciso.2025.100135

Jin Hau Lew , Omar K. Matar , Erich A. Müller , Adrielle Sousa Santos , Myo Thant Maung Maung , Paul F. Luckham

{"title":"Consolidation of carbonates using hydrolysed polyacrylamide: Effect of temperature, pressure, salinity, and nanoparticle crosslinking","authors":"Jin Hau Lew , Omar K. Matar , Erich A. Müller , Adrielle Sousa Santos , Myo Thant Maung Maung , Paul F. Luckham","doi":"10.1016/j.jciso.2025.100135","DOIUrl":"10.1016/j.jciso.2025.100135","url":null,"abstract":"<div><div>This paper discusses a comprehensive three-part experimental study on the consolidation of calcium carbonate (CaCO<sub>3</sub>) via hydrolysed polyacrylamide (HPAM). The first part involves the consolidation ability of HPAM on CaCO<sub>3</sub> investigated under room conditions. The setups in this work are dilute (1:25 mass ratio of CaCO<sub>3</sub> to HPAM) and concentrated (1:2 mass ratio) colloidal systems, and an incubation of Iceland spar calcite crystal in dilute HPAM solution. UV–Vis absorption, zeta potential, oscillatory rheology in the form of storage modulus (G’), unconfined compression stress (UCS), and atomic force microscopy (AFM) force mapping, reveal positive interactions and increased consolidation with higher HPAM dosage, up to an optimum level. The second part explores the impact of reservoir conditions, namely salinity and temperature, on the consolidating ability of HPAM. Salinity tests indicate a higher polymer dosage requirement under increased salt concentration to maintain optimum CaCO<sub>3</sub> consolidation, while temperature tests show a reduction in peak mechanical strength of consolidated CaCO<sub>3</sub> samples. In the final part, the preservation of the effectiveness of deploying HPAM in reservoir conditions by crosslinking it with silica nanoparticles (SiONP) is explored. The results from G′ and UCS analyses demonstrate that CaCO<sub>3</sub> consolidated by crosslinked HPAM retains peak mechanical strength even when treated with brine and subjected to continuous heating for three days. This extensive investigation into the consolidation of CaCO<sub>3</sub> by HPAM provides valuable insights into the potential use of HPAM for strengthening reservoir rocks, with the novel approach of crosslinking showing promise for preserving its usability in challenging reservoir conditions.</div></div>","PeriodicalId":73541,"journal":{"name":"JCIS open","volume":"18 ","pages":"Article 100135"},"PeriodicalIF":0.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

JCIS open最新文献