Md Nazrul Islam , Sumaya Haq Mim , Ahsan Rajib Promie , Rokaia Siddika , Md Omar Faruk , Hisham A. Essawy , Xiaojian Zhou , Antonio Pizzi
{"title":"Chemistry and mechanisms of water absorption properties of bioadhesives: A review","authors":"Md Nazrul Islam , Sumaya Haq Mim , Ahsan Rajib Promie , Rokaia Siddika , Md Omar Faruk , Hisham A. Essawy , Xiaojian Zhou , Antonio Pizzi","doi":"10.1016/j.ijadhadh.2025.104105","DOIUrl":"10.1016/j.ijadhadh.2025.104105","url":null,"abstract":"<div><div>Natural materials-based bioadhesives offer reliable and sustainable substitutes for synthetic adhesives due to their biocompatibility and sustainability. Water absorption properties in bioadhesives play a crucial role in determining their performance, particularly in biomedical, dental, and wood applications. The present review focuses on the chemistry and mechanisms beneath water absorption in bioadhesives, emphasizing the significant factors that impact this characteristic, including polymer structure, hydrophilic functional groups, cross-linked networks, and crystallinity. Water adsorption is also highly impacted by the presence of fillers and additives, as well as by environmental factors including pH, humidity, and temperature. In our study we explore how molecular weight, cross-linking density, and hydrophilic and hydrophobic functional groups affect the adhesive properties. Furthermore, the mechanisms of water-bioadhesive interaction, such as capillary action, diffusion, and swelling, are described. Through comprehension of the complex connection between polymer composition and water interaction, this review offers valuable perspectives for enhancing the functionality and design of bioadhesives for a range of uses. Additionally, the review addresses the challenges posed by high water absorption in carbohydrate- and protein-based adhesives, proposing strategies for enhancing their water resistance to expand their use in fields like wood bonding and biomedical applications.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104105"},"PeriodicalIF":3.2,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sonja Buvinic , Angelica Araya , Nadia Hernández , Javier Basualdo Allende , Carolina Pardo-Díaz , Gutiérrez Mario Felipe , Alessandro D. Loguercio , Eduardo Fernández
{"title":"Molecular mechanisms of cytotoxicity in Saos-2 osteoblast-like cells exposed to universal dental adhesives","authors":"Sonja Buvinic , Angelica Araya , Nadia Hernández , Javier Basualdo Allende , Carolina Pardo-Díaz , Gutiérrez Mario Felipe , Alessandro D. Loguercio , Eduardo Fernández","doi":"10.1016/j.ijadhadh.2025.104101","DOIUrl":"10.1016/j.ijadhadh.2025.104101","url":null,"abstract":"<div><h3>Statement of the problem</h3><div>Universal adhesives have gained popularity simplifying dental restorative procedures. However, limited information exists regarding formulation variations among manufacturers and their impact on cytocompatibility using human-derived cell lines.</div></div><div><h3>Purpose</h3><div>This study aimed to investigate the molecular mechanisms of cytotoxicity of three universal adhesives-Ambar Universal (AU), Single Bond Universal (SB), and Prime & Bond Universal (PB)-on human-derived Saos-2 osteoblast-like cells, elucidating the differential induction of apoptosis and necrosis pathways, contributing to a greater understanding of their biological effects.</div></div><div><h3>Methods</h3><div>Saos-2 cells were incubated with 0.1 % v/v AU, SB, or PB during 2, 4, or 6. h. Populations of viable, early apoptotic, late apoptotic, and necrotic cells were estimated by cell sorting after Annexin V/Propidium Iodide staining. Apoptosis indicators, caspase-3 activation or nuclei fragmentation were addressed by immunoblot or immunofluorescence, respectively. Cytotoxicity was evaluated after 24 h incubation, using MTT Cell Proliferation Assay, with or without the apoptosis inhibitor Z-VAD-FMK.</div></div><div><h3>Results</h3><div>SB exhibited a higher percentage of early apoptotic cells, and a significant increase in activated caspase-3 compared to control. AU and PB significantly increased necrosis, reducing cell viability by 100 %, compared to a 52 % reduction with SB. Immunofluorescence showed apoptotic nuclei morphology for SB, and necrotic characteristics for AU and PB. The apoptosis inhibitor Z-VAD-FMK only abolished SB-evoked cytotoxicity.</div></div><div><h3>Conclusion</h3><div>The universal adhesives studied induced cell death in Saos-2 cells through different mechanisms. SB primarily evoked apoptosis, whereas AU and PB predominantly led to necrosis. These varying cytotoxic effects should be considered when selecting safer universal adhesives for clinical use. However, these findings should be interpreted with caution, as the exclusive use of the Saos-2 osteosarcoma cell line may not fully reflect the biological behavior of dental pulp cells or other oral tissues.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104101"},"PeriodicalIF":3.2,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lucas Saldanha da Rosa , Rafaela Oliveira Pilecco , Pablo Machado Soares , János Kodolányi , Marília Pivetta Rippe , Amanda Maria de Oliveira Dal Piva , Luiz Felipe Valandro , Gabriel Kalil Rocha Pereira , João Paulo Mendes Tribst , Cornelis Johannes Kleverlaan
{"title":"Monotonic and fatigue flexural bond strength of CAD-CAM lithium disilicate and resin composites repaired with direct resin composites","authors":"Lucas Saldanha da Rosa , Rafaela Oliveira Pilecco , Pablo Machado Soares , János Kodolányi , Marília Pivetta Rippe , Amanda Maria de Oliveira Dal Piva , Luiz Felipe Valandro , Gabriel Kalil Rocha Pereira , João Paulo Mendes Tribst , Cornelis Johannes Kleverlaan","doi":"10.1016/j.ijadhadh.2025.104102","DOIUrl":"10.1016/j.ijadhadh.2025.104102","url":null,"abstract":"<div><h3>Objective</h3><div>To evaluate the flexural bond strength of CAD-CAM lithium disilicate (LD) and resin composite (RC) repaired with different direct resin composites.</div></div><div><h3>Materials and methods</h3><div>LD and RC blocks were sectioned (6 × 6 × 6 mm). LD was crystallized, and after, both materials were ground with a fine-grit diamond bur. LD blocks were etched with 5 % HF acid followed by silane application. RC blocks were air-abraded with Al<sub>2</sub>O<sub>3</sub>. A universal adhesive system was applied to both substrates. The blocks were repaired with nanohybrid (NANOH), bulk-fill (BULK), or flowable (FLOW) resin composite up to 6 mm additional length, and then cut into beams (1 × 2 × 12 mm). After storage in distilled water at 37 °C for 24 h, a flexural bond strength test was run with the ball-on-hole approach (10 mm span, 2 mm diameter) under monotonic (0.5 mm/min, n = 10) or cyclic fatigue (for LD/RC respectively: initial load 5/10 N; step size: 2.5/5 N, 10,000 cycles for each step, 1.4 Hz, n = 15). Finite element analysis was employed to calculate bond strength (MPa), and the data were statistically analyzed (α = 0.05).</div></div><div><h3>Results</h3><div>For repaired LD, LD-FLOW showed the highest bond strength values. Higher occurrence of premature failures was seen at LD. Among the repaired RC, RC-BULK and RC-FLOW exhibited the highest values in monotonic testing, meanwhile RC-FLOW alone achieved the highest results in fatigue testing.</div></div><div><h3>Conclusion</h3><div>When repairing CAD-CAM LD or RC, better bond strength is achieved using a flowable resin composite. The high incidence of premature failures in LD raises questions to the repair longevity.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104102"},"PeriodicalIF":3.2,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of the adhesion process and fiber orientation for low-velocity impact response of AA6061-T6 bonded with GFRP","authors":"Isaías Chamorro-Cruz , Jorge Iván Reyes-Guzmán , Rebeca López-Santiago , Hilario Hernández-Moreno , Sergio Guillermo Torres‐Cedillo , Jacinto Cortés‐Pérez , Moises Jimenez‐Martinez","doi":"10.1016/j.ijadhadh.2025.104103","DOIUrl":"10.1016/j.ijadhadh.2025.104103","url":null,"abstract":"<div><div>Dissimilar material joints, such as composite materials combined with lightweight metals, have been widely used in the automobile and aerospace industries to improve fuel efficiency and reduce weight. Therefore, accurate analysis and study of the mechanical behavior of dissimilar material joints are fundamentally required. In this study, impact test analysis was performed on one-sided fiber glass composite bonded with aluminum to investigate the effect of the adhesion process and directional fiber orientation on the low-velocity impact response. Two different adhesion processes (secondary cure and co-cure) were evaluated, along with four fiber orientations (0/90°, ±15°, ±30°, and ±45°). The results demonstrated that ±30° fiber orientation exhibited the highest energy absorption, confirming its superior impact resistance. For lower fiber angles (0/90° and ±15°), secondary cure and co-cure performed similarly, with co-cure bonding showing slightly lower energy absorption. However, at higher fiber angles (±30° and ±45°), co-cure bonding significantly improved fracture resistance by reducing the fiber pullout and promoting interfacial-dominated failure modes (brooming and fiber crushing). A detailed fractographic and digital image analysis identified the different fracture zones: crack initiation, shear lips, crack propagation, final fracture, and their relations with the adhesion process and fiber orientation.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104103"},"PeriodicalIF":3.2,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gamze Dik , Tuğba Doğan , Kübra Karadaş Gedik , Ahmet Ulu , Burhan Ateş
{"title":"Polymer-based anti-adhesive barriers: A comprehensive overview of current approaches for medical and biological applications","authors":"Gamze Dik , Tuğba Doğan , Kübra Karadaş Gedik , Ahmet Ulu , Burhan Ateş","doi":"10.1016/j.ijadhadh.2025.104096","DOIUrl":"10.1016/j.ijadhadh.2025.104096","url":null,"abstract":"<div><div>Tissue and cell adhesions are undesirable conditions observed after surgical operations. This adhesion is seen at a high rate in many patients after the surgical operation. It is especially observed in biological parts such as the abdominal cavity, thoracic cavity, and tendons. Due to the healing of the fibrous tissues in the wound after the surgery, this part causes adhesion in the surrounding tissues and organs, and patients may develop complications such as chronic pain, intestinal obstruction and functional obstruction of organs after adhesion, may require a repeat surgical operation, and is a serious problem that may cause infertility in women. Chronic pain, intestinal obstruction, and functional obstruction of organs may develop complications after adhesion. To prevent this situation, it is very important to develop barriers with higher biocompatibility, low cost, easily applicable, and synthesizable instead of existing anti-adhesive barriers. Potential candidates with these properties are thought to be polymers. Polymers offer many options for use as anti-adhesive barriers since they can be obtained from natural sources and synthetically. These options can be designed according to the characteristics of the anti-adhesive barriers desired to be synthesized. These polymers can be produced in a short time using very simple techniques in the forms of hydrogel, membrane, fiber, film, etc. In addition to these, these polymers synthesized as anti-adhesive membranes can act as simultaneous drug release and imaging agents in various combinations. In this article, medical and biological applications of anti-adhesive barriers with various formulations developed with different polymer types are mentioned. Therefore, through this article, we report on recent work and some key points in the development of such applications.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104096"},"PeriodicalIF":3.2,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144579295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Paulo Henrique Lobo Neves , Fernanda Dalfiôr Maffioletti , Michelly Casagrande Stragliotto , Letícia da Silva Moreira , Rafael de Aguiar Rodrigues , Thiago Augusto de Sousa Moreira , Fernando Wallase Carvalho Andrade , Alcebíades Negrão Macedo , Victor Hugo Pereira Moutinho
{"title":"Performance of amazonian species in the production of glued laminated timber","authors":"Paulo Henrique Lobo Neves , Fernanda Dalfiôr Maffioletti , Michelly Casagrande Stragliotto , Letícia da Silva Moreira , Rafael de Aguiar Rodrigues , Thiago Augusto de Sousa Moreira , Fernando Wallase Carvalho Andrade , Alcebíades Negrão Macedo , Victor Hugo Pereira Moutinho","doi":"10.1016/j.ijadhadh.2025.104100","DOIUrl":"10.1016/j.ijadhadh.2025.104100","url":null,"abstract":"<div><div>Wood has become an important material in construction, particularly for building structures, due to its renewable natural properties and high strength. However, solid wood has limitations in terms of log dimensions, making it challenging to use in constructions requiring larger structural components. In this context, engineered wood, such as Glued Laminated Timber (glulam), emerges as an innovative solution. Glulam consists of layers of low and medium-density wood bonded with specific adhesives, resulting in a material with superior mechanical properties and greater versatility. This study analyzed the performance of four low-density Amazonian species (<em>Jacaranda</em> sp., <em>Cedrela fissilis</em>, <em>Cordia goeldiana</em>, and <em>Simarouba amara</em>) in combination with different adhesive types (PVAc, EPI, PUR, and PU). Shear strength and accelerated delamination tests were conducted to evaluate the feasibility of these combinations for structural applications. The results indicated that EPI and PU adhesives excelled in shear strength, even surpassing the strength of solid wood in some species. However, performance varied by species, with <em>Cordia goeldiana</em> showing lower compatibility with PU. Delamination tests revealed that EPI and PVAc adhesives were more effective under external conditions, while PUR showed a higher tendency for delamination. It is concluded that the studied Amazonian species have significant potential for glulam production, provided that the appropriate adhesive is selected for each species. This not only promotes the sustainable use of Amazonian forests but also enhances regional bioeconomy development by adding value to forest products and contributing to environmental conservation.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104100"},"PeriodicalIF":3.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Relationships between static contact angles and profile parameters of blast-cleaned carbon steel substrates","authors":"T. Marquardt, A.W. Momber","doi":"10.1016/j.ijadhadh.2025.104098","DOIUrl":"10.1016/j.ijadhadh.2025.104098","url":null,"abstract":"<div><div>Based on statistical analysis (DoE, ANOVA), the relationships between profile parameters and the wettability of carbon steel substrates were systematically investigated for the first time for all sections of a roughness profile (formation, peak, shape, valley, core). The substrates were blast-cleaned with various grit materials, including steel grit, steel shot, and aluminium oxide. The wettability was determined in terms of contact angle measurements by means of the Wilhelmy plate method. A total of 39 standard profile parameters were recorded with a mechanical stylus instrument. The results were evaluated in terms of significance and Spearman correlation coefficient. For distilled water as wetting liquid, none of the profile parameters showed statistical significance, and 87 % of all parameters exhibited only weak or very weak Spearman correlations. In contrast, for diiodomethane, 82 % of the parameters displayed strong or very strong correlations. For diiodomethane as wetting liquid, the “formation” section of the profile exhibited extremely significant effects on the contact angle and showed the highest average Spearman correlation among all profile sections. The choice of the wetting liquid determined the direction of the Spearman correlations. For distilled water, 64 % of the parameters showed a positive correlation; and for diiodomethane, 72 % of all parameters showed a negative correlation. Simple combinations of profile parameters, as suggested in the literature, did not correlate with the contact angles. A working hypothesis is provided to explain the recorded interactions between wetting liquid and substrate.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104098"},"PeriodicalIF":3.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yan Zhang , Yanrong Xu , Xiuli Su , Haihong Zhang , Xiaowei Feng , Xiaolong Wei
{"title":"Microscopic interaction behavior of rubber modified asphalt-aggregate interface in different acid-base solutions","authors":"Yan Zhang , Yanrong Xu , Xiuli Su , Haihong Zhang , Xiaowei Feng , Xiaolong Wei","doi":"10.1016/j.ijadhadh.2025.104099","DOIUrl":"10.1016/j.ijadhadh.2025.104099","url":null,"abstract":"<div><div>This study investigates the effect of water erosion on the adhesion between rubber modified asphalt and aggregates, evaluating the moisture damage resistance of asphalt mixtures in solutions with varying pH. This study examined the adhesion between rubber modified asphalt and four aggregates: granite, basalt, class A limestone, and class B limestone. Adhesion forces were measured using atomic force microscopy (AFM) in 1 mmol/L potassium chloride solutions at pH 2, 4, 6, 8, and 10. Based on the Zeta potential values of asphalt and aggregate surfaces, interaction forces were calculated using the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory and compared with experimental results. The adhesion strength was highest for limestone, followed by basalt, and lowest for granite. The measured long-range forces (LRF) were lower under acidic conditions, while adhesive forces were higher in alkaline environments, suggesting better moisture damage resistance in acidic media. The LRF curves aligned well with DLVO-calculated values, confirming the theory's applicability to asphalt-aggregate interactions. In addition, molecular dynamics simulations of the microscopic forces between asphalt and aggregates showed consistency with AFM results. This study elucidates microscale adhesion mechanisms in aqueous environments and offers guidance for improving moisture resistance in rubber modified asphalt pavements.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104099"},"PeriodicalIF":3.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fikri Öcal , Nazik İrem Önügören , Burak Dayı , Tuba Sarıcı
{"title":"Effect of passive air exposure and light contact duration on the bond strength and mechanical properties of universal adhesives","authors":"Fikri Öcal , Nazik İrem Önügören , Burak Dayı , Tuba Sarıcı","doi":"10.1016/j.ijadhadh.2025.104094","DOIUrl":"10.1016/j.ijadhadh.2025.104094","url":null,"abstract":"<div><h3>Objective</h3><div>This study aimed to evaluate the effects of passive air exposure (no active drying) and light contact time (under D65 light simulating daylight) on adhesive performance.</div></div><div><h3>Methods</h3><div>Five universal adhesives (G-Premio Bond [GC], Clearfil Universal Bond [Kuraray], Prime & Bond Universal [Dentsply], OptiBond Universal [Kerr] and Gluma Bond Universal [Kulzer]) were applied to dentin samples after different passive air exposure times (0, 5, 15, 30 s) under standard D65 artificial daylight. Micro-tensile bond strength (μTBS), fracture distance (ΔL), and elastic modulus (E) were measured. Morphological evaluation of the adhesive interfaces and fracture patterns was performed using scanning electron microscopy (SEM). Statistical analysis included two-way ANOVA to assess the main effects and interactions of adhesive type and exposure time, followed by one-way ANOVA or Kruskal-Wallis tests for group-specific comparisons. <em>Post hoc</em> tests (Tukey, Bonferroni, or Games-Howell) were applied when appropriate. Correlation and regression analyses were also performed. Statistical significance was set at p < 0.05.</div></div><div><h3>Results</h3><div>Passive air contact and light exposure significantly affected the mechanical performance of the adhesives. The GPB 30 s group showed the highest bond strength, while the elastic modulus decreased significantly (p = 0.028). The CUB 15 s group exhibited one of the highest elastic modulus values, but the adhesive fracture rate was high in the fracture type (p = 0.007). Correlation analyses showed a strong negative relationship between elastic modulus and fracture distance (r = −0.559/-0.834). SEM images revealed that air bubbles had a negative effect on bond strength.</div></div><div><h3>Significance of the study</h3><div>This study guides on the optimal application time for clinical applications by evaluating the effects of air and light exposure time on bonding mechanisms in universal adhesive systems. The findings suggest that adhesive application protocols should be precisely optimized.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104094"},"PeriodicalIF":3.2,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nafij Bin Jamayet , Genevieve Kong Yuiin Sze , Koay Chun Giok , James Dudley , Umer Daood
{"title":"Peel bond strengths of maxillofacial prosthetic silicone adhesives following exposure to tropical weather","authors":"Nafij Bin Jamayet , Genevieve Kong Yuiin Sze , Koay Chun Giok , James Dudley , Umer Daood","doi":"10.1016/j.ijadhadh.2025.104095","DOIUrl":"10.1016/j.ijadhadh.2025.104095","url":null,"abstract":"<div><h3>Objectives</h3><div>The objective of this study was to compare the peel bond strength and modes of failure of maxillofacial prostheses (MFP) adhered to simulated human skin using regular adhesive and hydrobond adhesive following exposure to tropical outdoor weather.</div></div><div><h3>Methods</h3><div>Eighty MFP silicone specimens were constructed and adhered to simulated skin silicone using one of two maxillofacial prosthetic silicone adhesives (MFPSA): regular and hydrobond. For each adhesive, 20 samples were exposed to 4 h of tropical weather on five consecutive days (test group), and 20 samples were exposed to room temperature and dark room conditions for five consecutive days (control group). A T-peel test was conducted using a Universal Testing Machine and the samples were visually analyzed for mode of failure. Raman spectroscopic analysis was conducted with backscattering configuration.</div></div><div><h3>Results</h3><div>There were no significant differences in MFPSA peel bond strength between regular adhesive and hydrobond adhesives following five days of exposure to tropical weather. Within the tropical weather (test) group, hydrobond adhesive demonstrated similar peel bond strengths compared with the regular adhesive; p = 1.00 (Table 2). Within the room temperature and dark room conditions (control) group, hydrobond adhesive showed peel bond strengths significantly greater than the regular adhesive (p = 0.16). The mixed mode of failure involving both adhesive and cohesive failure was observed in 80 % of specimens.</div></div><div><h3>Conclusions</h3><div>The MFPSA peel bond strength was not affected by tropical weather conditions. Within the limitations of this in vitro study, the hydrobond adhesive demonstrated greater adhesive strength than the regular adhesive in room temperature and dark room conditions.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"142 ","pages":"Article 104095"},"PeriodicalIF":3.2,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}