Successful Grafting Research Articles

Surface modification of fabrics using dielectric barrier discharge plasma for improved antifouling performance

Surface modification of fabrics is an effective way to endow them with antifouling properties while still maintaining their key advantages such as comfort, softness and stretchability. Herein, an atmospheric pressure dielectric barrier discharge (DBD) plasma method is demonstrated for the processing of silk fabrics using 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane (PFDS) as the precursor. The results showed the successful grafting of PFDS groups onto the surface of silk fabrics without causing damage. Meanwhile, the gas temperature is rather low during the whole processing procedure, suggesting the non-equilibrium characteristics of DBD plasma. The influence on fabrics of the processing parameters (PFDS concentration, plasma treatment time and plasma discharge power) was systematically investigated. An optimum processing condition was determined to be a PFDS concentration of 8wt%, a plasma processing time of 40 s and a plasma power of 11.87 W. However, with prolonged plasma processing time or enhanced plasma power, the plasma-grafted PFDS films could be degraded. Further study revealed that plasma processing of silk fabrics with PFDS would lead to a change in their chemical composition and surface roughness. As a result, the surface energy of the fabrics was reduced, accompanied by improved water and oil repellency as well as enhanced antifouling performance. Besides, the plasma-grafted PFDS films also had good durability and stability. By extending the method to polyester and wool against different oil-/water-based stains, the DBD plasma surface modification technique demonstrated good versatility in improving the antifouling properties of fabrics. This work provides guidance for the surface modification of fabrics using DBD plasma to confer them with desirable functionalities.

Exploring the Role of Perfusion in Skin Graft Viability on the Scalp and Lower Limb: An Analysis of Graft Bed, Margin, and Donor Skin Using Laser Speckle

Background/Objectives: Reperfusion is a major determinant of skin graft viability. The contributions of the perfusion status of the wound bed, wound margin, and donor skin to the success of the skin graft are unclear. We aimed to evaluate the relationship between perfusion variables and graft necrosis extension on the scalp and lower limb. Methods: A prospective study was conducted on adults undergoing skin graft closure after skin cancer excision on the scalp (n = 22) and lower limb (n = 20). Perfusion was measured intraoperatively and non-invasively with laser speckle contrast imaging on the graft bed, margin, and donor skin. By day 28, graft necrosis extension was quantified. Results: On the scalp and lower limb, graft bed perfusion very strongly correlated with necrosis extension (r = −0.82, p < 0.001 and r = −0.94, p < 0.001, respectively). A significant correlation (r = −0.57, p = 0.01) between margin perfusion and necrosis extension was only observed on the lower limb. The donor skin perfusion and necrosis extension did not correlate in either location (p > 0.05). The graft bed perfusion explained 68% and 89% of the variation in necrosis extension on the scalp and lower limb, respectively. Regression models of necrosis extension based on graft bed perfusion were obtained. For each unit increase in the perfusion of the graft bed, a similar decrease in necrosis extension was observed on the scalp and lower limb (40 and 48 percentage points, respectively). Conclusions: Unlike the perfusion of the wound margin and donor skin, wound bed perfusion plays a significant role in skin graft viability and can predict necrosis extension.

Impact of Scion Length and Cover Type on the Success of Durian Grafting

Grafting has become a technique with high potential for increasing the efficiency of modern and intelligent crop cultivation, and shows its adoption of power and robustness under different inspection situations. This study aims to determine impact of interaction between scions length and cover type on the success of durian grafting. It was carried out using a Split Plot Design method, with the main plot being the cover type composed of individual and mass of cover type, while the subplot consists of 10 and 20 cm scions length. The observed variable were time of bud emergence, percentage of bud emergence, bud length, leaves of number and grafting of success. The data were analyzed by Analysis of Variance (ANOVA). If there are significantly different treatments then proceed with the Least Significant Difference test at 5% level. The results showed that the interaction between scions of length and cover type treatment did not affect grafting technique. However, the treatment of cover type affected the percentage of bud emergence, bud length, leaves of number, and grafting success. The treatment of scions of length also affected the leaves of number. The mass cover type resulted in 93.5% bud emergence, 1.5 cm bud length, 2.73 increase in the leaves of number, and 93% grafting success. Meanwhile, the treatment of scions of length 20 cm increased the leaves of number by 2.13 strands. Scions of length that is successfully connected to grow and form new shoots has an impact on the development of healthy stems. The cover type in this study was able to protect grafting plants from direct exposure to sunlight, maintain plant moisture, prevent pests and diseases, protect from rain so that grafting can be successful.

Reinforcement of the Anterior Annulus by Overlay Conchal Cartilage in Temporalis Fascia Grafting for Subtotal and Total Perforations.

Objectives: In this study, the graft success and hearing improvement were compared in patients with subtotal or total tympanic membrane perforations following conchal cartilage-reinforced temporalis fascia graft tympanoplasty (CCRTT) versus traditional tragal island cartilage tympanoplasty (TICT). Material and Methods: Fifty Type 1 tympanoplasties performed for subtotal or total tympanic membrane perforation were classified into 2 groups: CCRTT consisted of 23 patients and TICT consisted of 27 patients. The difference between these 2 groups was analyzed by means of graft success, reperforation, and postoperative hearing gain after 12 months. Results: The graft success rate was 96.3% in TICT group and 91.3% in CCRTT group and there was no statistical difference between 2 groups (P > .05). Postoperative pure tone average (PTA) gain was 12.9 ± 9 dB for TICT group and 14 ± 8.8 dB for CCRTT group and postoperative air-bone gap (ABG) gain was 11.2 ± 7.7 dB in TCIT group and 11.3 ± 8.5 dB in CCRTT group and again, there was no statistical difference between these 2 study groups considering PTA and ABG gain (P > .05). Conclusion: Reinforcing tympanic membrane by conchal cartilage in an overlay technique under the anterior tympanic annulus by CCRTT in subtotal and total perforations is as effective as traditional TICT. Considering that graft success is lower in subtotal and total tympanic membrane perforations, both methods can be used interchangeably, depending on the choice of the surgeon.

The effect of single-layer and double-layer graft usage in tympanoplasty on hearing and graft success.

In this study, we investigated whether the use of double layer graft (DLG) in tympanoplasty would increase grafting success rates (GSR) and whether increased graft thickness would negatively affect hearing. The study group consisted of patients with DLG and the control group consisted of patients with single layer graft (SLG). The results of 195 patients in terms of hearing achievement and 211 patients in terms of GSR were compared. Hearing and GSR were analyzed in 103 DLG and 108 SLG patients. Postoperative 6th month air conduction pure tone averages were 25.34 (±14.99) dB in DLG group and 20.50 (±8.82) dB in SLG group. These values were statistically significantly higher in the DLG group (p=0.005). Postoperative air bone gap was 11.40 (±8.61) dB in DLG and 12.95 (±10.88) dB in SLG and there was no statistically significant difference in hearing gain between the groups. GSR was 99/103 (96.1%) in the DLG group and 103/108 (95.4%) in the SLG group with no difference between the groups (p=0.679) CONCLUSION: We concluded that DLG is not superior to SLG in terms of both hearing and GSR, and may even be disadvantageous in terms of hearing, and this should be taken into consideration in patient selection.

Silent Acute Myocardial Infarction and Anterolateral Papillary Muscle Rupture: A Rare Complication in Elderly Patients

Mitral regurgitation (MR) following acute myocardial infarction (AMI) is a common occurrence, often resolving without significant complications. However, severe MR leading potentially to acute heart failure or cardiogenic shock is rare. It can result from papillary muscle rupture (PMR) which is an extremely uncommon and life-threatening mechanical complication of AMI. We present a case of a 77-year-old male with a late-presenting high-risk acute coronary syndrome (ACS) complicated by acute MR due to anterolateral PMR. The patient exhibited atypical symptoms, including dyspnea and cough, and was diagnosed with a STEMI equivalent. Echocardiography revealed severe MR secondary to papillary muscle rupture. The patient underwent successful coronary artery bypass graft (CABG) and mitral valve replacement surgery. We discuss the risk factors, management and complications of papillary muscle rupture, emphasizing the importance of early recognition and intervention. This case underscores the potential for atypical ACS presentations in the elderly and highlights the significance of specific ECG patterns, such as ST segment elevation in leads aVR and/or V1. Despite advancements in therapy, the mortality associated with papillary muscle rupture remains high, underscoring the critical need for preventive measures and heightened clinical awareness

Successful Vascular Graft Reconstruction of Short Renal Artery Using Polytetrafluoroethylene (PTFE) in Living Donor Kidney Transplantation—A Case Report and Review of Literature

Short donor renal artery during nephrectomy poses a technical challenge. We present a main renal artery (RA) reconstruction case in Living-donor kidney transplantation (LDKT) using an extension polytetrafluoroethylene vascular graft(PTFE). A 57-year-old man received LDKT from his son. Post-laparoscopic donor nephrectomy, a PTFE graft was used to reconstruct the short RA. Excellent reperfusion, good renal turgor, and immediate urine production were noted. Serial Doppler assessments on postoperative days 1, 3, and 7 and 180 confirmed good blood flow. The PTFE graft did not cause any additional morbidity or complications related to kidney transplantation.

Optimizing Outcomes in Heart Transplantation: The Role of High-Intensity Statin Therapy.

Heart transplantation is a vital procedure for patients with end-stage heart failure, but it faces significant challenges, including graft dysfunction, rejection, and cardiac allograft vasculopathy (CAV), which can compromise long-term graft success. Research suggests that statin therapy may offer significant benefits to heart transplant recipients, such as improved long-term survival and reduced rates of graft rejection and mortality. The aim of this review is to thoroughly examine the recent literature on this topic since 2005. Early use of high-dose statins appears to be particularly effective in preventing vasculopathy and improving outcomes, although a titrated approach may help to reduce side effects. High-dose statins may provide superior cardiovascular benefits, including lower rates of CVD, slower progression of CVD and improved long-term graft survival. Despite potential concerns about adverse effects, evidence suggests that high-intensity statins improve cholesterol levels without increasing serious adverse events after transplantation. The goal of statin therapy in heart transplant recipients is to balance the well-established benefits seen in the general population with the specific needs of this group, with the ultimate goal of improving both longevity and quality of life.

Amine-responsive PVA-based fluorescent indicator films incorporating β-Glucan/FITC for visual detection of chilled meat freshness

Amine-responsive fluorescent indicator films for meat freshness were constructed by incorporating β-glucan grafted with fluorescein isothiocyanate (FITC) in polyvinyl alcohol (PVA). The structural, thermal, and responsive properties of grafted copolymers (βGlu-FITC) were investigated. The results of 1H NMR spectra showed that βGlu-FITC exhibited proton signals between 6.5 and 6.7 ppm, suggesting the successful grafting of FITC onto β-glucan. The fluorescence quantum yield of βGlu-FITC was 18.72%, which was higher than that of β-glucan of 12.94% at the optimum excitation wavelength of ultraviolet light of 365 nm. With the incorporation of PVA as a film-forming matrix, βGlu-FITC/PVA films showed high yellow-green fluorescent responsiveness under volatile ammonia and pH solution. When the film was used for meat freshness, the 0.06βGlu-FITC/PVA film provided a noticeable fluorescent indication of pork freshness that corresponded to increases in total volatile basic nitrogen, total colony counts, and drip loss, suggesting its potential for meat packaging and as a freshness indicator.

Sulfur-functionalized rice straw biochar for enhanced cadmium sorption: Spectroscopic, kinetic and computational insights

Cadmium (Cd) contamination necessitates effective remediation approaches. This study valorizes rice straw biochar by enhancing its Cd sorption capacity through sulfur functionalization. Biochar was functionalized with sulfur compounds (H2SO4, Na2S, and Na2S2O3) to introduce Lewis soft base characteristics for improved affinity towards Cd(II), a Lewis soft acid. Characterization confirmed successful grafting of various sulfur groups, increasing the sulfur content from 0.33% to 13.27% and boosting oxygen-containing functional groups. The sulfur-functionalized biochar demonstrated significantly enhanced Cd(II) sorption compared to pristine biochar, with a maximum capacity of 34.40 mg g−1 at pH 5.0 – a 17.3-fold increase – and reduced equilibrium time from 8 h to 5–10 min. Density functional theory calculations suggested that sulfur doping facilitated Cd-S bond formation and modulated the electronic properties of the biochar-Cd systems, contributing to the superior sorption performance. Sulfur functionalization offers a cost-effective, eco-friendly method for enhanced Cd(II) removal, validated by experiments and theory.

Preparation and characterization of self-dispersive and reactive carbon black and its application in cotton fabric

This study aims to develop a self-dispersive and reactive carbon black (DRCB) to improve its application in cotton fabric. CB was functionalized with γ-aminopropyl triethoxysilane (KH550) and then grafted with as-synthesized compound to obtain aqueous phase DRCB. FTIR analysis confirmed the successful grafting of as-synthesized compound onto KH550-modified CB surface. The weight grafting of DRCB on DRCB-15 % dyed cotton fabric was approximately 15.18 %, with a half weight grafting time of around 17 min. TEM observation demonstrated that DRCB had a core-shell structure with the mean sizes of 36.02 ± 4.30 nm. Particle size analysis revealed that DRCB had smaller average aggregate size of 110.3 nm and higher zeta potential of −33.7 mV than CB, indicating that DRCB had much better dispersion in aqueous media than CB. Cotton fabric was effectively dyed with DRCB, providing excellent color depth of 60 (K/S value) with dry rubbing and wet rubbing/washing color fastness of Grade 4 and Grade 3, respectively. DRCB dyed cotton fabric exhibited outstanding anti-UV and anti-static properties, with no significant difference in softness and tensile property before and after dyeing. This research proposed a new method to solve nanoparticle agglomeration and prepare textile dyes with excellent self-dispersivity and reactivity.

Factors Influencing the Success of Non Vascularized Iliac Bone Graft for Mandibular Reconstruction: A Retrospective Study of 26 Cases

Objective: This study aimed to identify the prognostic factors influencing the success of nonvascularized iliac bone grafts for mandibular reconstruction. Methods: This was a retrospective cohort study conducted at a single center, involving 26 patients who underwent segmental mandibulectomy followed by nonvascularized iliac bone grafts between 2012 and 2022 at the Oral and Maxillofacial Surgery Unit, Buddhachinaraj Phitsanulok Hospital. Data were collected by reviewing electronic medical records and radiographic images. Patients who had received vascularized bone grafts or had a history of head and neck irradiation therapy were excluded from the study. The patients were classified into two groups: successful and failed. Success was defined as clinical and radiographic evidence of bone continuity, a graft resorption rate not exceeding 30% of the initial height, and no evidence of chronic infection for at least 6 months. Results: Successful bone grafting was achieved in 19 patients (73.1%). Multivariable risk difference regression analysis identified that the factors influencing graft incorporation were jaw immobilization using reconstruction plates with maxillomandibular fixation for at least 21 days (RD 63.0; 95% CI 33.1, 93.0; p<0.001) and long segmental block graft design (51.3%; 95% CI 16.9, 85.7; p<0.003). A clinically significant factor, although statistically insignificant, was the duration of plate stabilization, which should ideally range from 172 to 232 days prior to plate removal. The sample size constituted a limitation of this study. Conclusions: Nonvascularized bone grafting remains a viable option for reconstructing mandibular segmental defects. The factors influencing graft stability can help improve clinical outcomes.

Photocatalytic degradation of organic dyes under sunlight using a mononuclear Zn complex-embedded-functionalized porous material.

In this study, mesoporous materials (MCM-41 and MCM-48) were synthesized and functionalized with an acid group through a post-synthetic modification method. A mononuclear Zn complex [Zn(dmp)Cl2] (dmp = neocuprine) was also prepared and incorporated into a functionalized mesoporous material. Extensive characterization of the material married was carried out using techniques such as X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) analysis, scanning electron microscopy (SEM), nuclear magnetic resonance (NMR), and Fourier-transform infrared spectroscopy (FT-IR) to evaluate the characteristics of modified materials. The characterization results revealed that the post-synthetic modification did not alter the phase purity, crystallinity, or morphology of the mesoporous materials while confirming the successful grafting of the desired sulphonic acid functionality and Zn complex. The Zn complex-grafted-functionalized mesoporous materials were then assessed for their photo-degradation using methylene blue (MB) and rhodamine B (RB). The results demonstrated exceptional photo-degradation efficiency of the modified materials under sunlight. Within 15min, 10mg/ml of dye concentration, and adsorbent dosage 0.15mg/ml and 0.1mg/ml, degradation efficiencies of 99% and 92%, were achieved for MB using M-48-S-Zn1 and M-41-S-Zn1, respectively. Similarly, 91% and 78% degradation rates were achieved within 30min for RB using the same materials. The modified mesoporous materials exhibited a remarkable degradation performance even in challenging environments, including highly acidic, basic, and salt-concentrated conditions. This highlights the versatility and robustness of the modified materials in different environmental scenarios.

Study of Different Aged Jackfruit (Artocarpus heterophyllus L.) Rootstocks on Softwood Grafting Success under Different Environmental Conditions

An investigation was conducted to find out the optimum Jackfruit rootstock age for softwood grafting and to find out the suitable environmental condition for the success of Jackfruit grafts was conducted at Department of Biotechnology and Crop Improvement, College of Horticulture, Kolar, Karnataka during the year 2023. Six different aged Jackfruit rootstocks (15, 30, 45, 60, 75 and 90 days old) were softwood grafted and evaluated under three environmental conditions (Shadenet, Polytunnel and Polyhouse) in a factorial completely randomised design with four replications. The morpho-physiological results revealed that, 15 days old rootstock grown under shadenet took highest number of days for sprout initiation (24.02 days) compared to others. Significantly highest graft success (50.20 %) was recorded in 90 days old rootstock grafts grown under polyhouse condition 30 days after grafting. Maximum number of leaves per graft (4.95, 6.95 and 9.15) and maximum RWC % (83.63, 86.98, and 90.61 %) was recorded in 90 days old rootstock grown under polyhouse at 30, 60 & 90 days after grafting respectively. Similarly, significantly highest chlorophyll (4.70 mg/g FW), root length (18.52 cm), root fresh weight (9.43 g/plant), root dry weight (1.35 g/plant) and root biomass (3.64 g/plant) found in 90 days old rootstock grafts grown under polyhouse conditions. The maximum root-to-shoot ratio was recorded on fresh weight (0.73 g) and dry weight (0.56 g) in 90 days old rootstock grown under polyhouse condition. Significant maximum graft survival (44.71 %) recorded in 90 days old rootstock grafts grown under polyhouse. Significantly highest graft dry matter (3.95 g/plant) was recorded in 90 days old rootstocks grafts grown under polyhouse whereas least in shadenet (2.99 g/plant). In conclusion, it is found that grafting of 90 days old Jackfruit rootstocks performed better under polyhouse conditions for most of the traits.

Skin graft monitoring using forward-looking infrared thermal imaging.

This study examined the feasibility of non-invasive infrared thermography to monitor skin graft viability. Sixty-three patients with skin defects attending a single institution from May 2022 to August 2023 were included. Patients underwent full-thickness or split-thickness skin grafts based on clinical indication. Infrared thermal images were obtained on postoperative days 0, 2, 4, 6 and 8. The temperature difference between the skin graft and surrounding normal skin was assessed using image analysis software. All 33 patients with full-thickness skin grafts showed successful healing. Among the 30 patients with split-thickness skin grafts, 7 experienced failure. The groups with successful full-thickness and split-thickness skin grafts exhibited a gradual increase in graft temperature, peaking on postoperative day 6 and decreasing on postoperative day 8. Temporal temperature changes were significant in each patient group (p < 0.001), and the differences in temperature change patterns between the two groups with successful grafts and the group with graft failure were also significant (p < 0.001). On postoperative day 6, the temperature difference was highest in the full-thickness skin graft group (0.197 ± 0.335°C), followed by the successful split-thickness skin graft group (0.426 ± 0.428°C), and the split-thickness skin graft group with graft failure (-2.100 ± 0.361°C). In conclusion, infrared thermal imaging can provide a non-invasive real-time assessment of graft status and predict graft success or failure.

A comprehensive study on thermal/electrical conduction, mechanical and curing properties of silicone rubber nanocomposites contained exfoliated-surface modified h-BNs

In current work, hexagonal boron nitride (h-BN) was firstly exfoliated and then surface modified by vinyltriethoxysilane (VTES) at different concentrations. The success of silane grafting was evaluated using FTIR, XRD, TGA and XPS analysis. Thereafter, the modified and unmodified h-BNs were incorporated in to silicone rubber matrix and comprehensively examined for final performances. Silane modification of the exfoliated h-BN made the nanocomposite less thermal stable than the rest. In contrast, the thermal conductivity of the modified nanocomposite enhanced by 42.2 and 550% compared to the unmodified nanocomposite and SR. Although, the presence of h-BNs (i.e. both of the modified and unmodified) improved considerably the electrical resistivity of SR but, silane treated nanocomposites showed lower electrical resistivity than unmodified ones (19.7%). FE-SEM images confirmed improved interfacial bonding between exfoliated/silanized h-BN to SR matrix that was arisen from co-curing of vinyl groups in VTES and SR chains. This happening improved filler-polymer adhesion and made the mechanical property of the modified nanocomposite outstanding with higher storage modulus, tensile strength and Tg compared to the SR (i.e. 127%, 26% and 10 °C, respectively). The contact angle increased from 92.8o for SR to 107.6 for modified nanocomposite which is mostly desired in microelectronic applications.

Chitosan-grafted Cyclodextrin via Click Chemistry as an Encapsulating Agent to Enhance the Antibacterial Activity of Thymol

Introduction: This paper aimed to investigate, for the first time, the possibility of increasing the antibacterial activities of thymol (TH) by developing an encapsulating agent based on chitosan-grafted cyclodextrin. For this purpose, β-cyclodextrin was monosubstituted at position 6 via propargyl bromide, and chitosan’s amine groups were converted to azide functions. After alkylation and diazotization reactions, the grafting of β-cyclodextrin onto the chitosan (CSβCD) was realized via click chemistry alkyne–azide cycloaddition. Methods: The incorporation of TH into chitosan-grafted β-cyclodextrin (TH/CS-βCD) was performed by the freeze-drying method, and the encapsulation efficiency was investigated based on various mass ratios (TH:CS-βCD). The optimized inclusion complex was then thoroughly examined by scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). Results: The antibacterial activity was assessed against Escherichia coli, Staphylococcus aureus, and Bacillus subtilis using broth-microdilution assay. Fourier transform infrared spectroscopy analysis demonstrated the successful grafting of β-cyclodextrin onto chitosan since the optimum mass ratio between TH and CS-βCD was 1:8 (w:w), corresponding to 78 ± 3.42% of encapsulation efficiency, while SEM, XRD, TGA and DSC confirmed the establishment of TH/CS-βCD inclusion complexes. Conclusion: The in vitro investigation showed that TH/CS-βCD exhibited higher antibacterial properties compared to TH in free form.

Fabrication and Characterization of Biocompatible Multilayered Elastomer Hybrid with Enhanced Water Permeation Resistance for Packaging of Implantable Biomedical Devices.

This study presents the synthesis and characterization of hexadecyl-modified SiO2 (HD-SiO2) nanoparticles and their application in the fabrication of a multilayered elastomer hybrid sheet to enhance water resistance in implantable biomedical devices. The surface modification of SiO2 nanoparticles was confirmed via FT-IR and TGA analyses, showing the successful grafting of hydrophobic hexadecyl groups. FE-SEM and DLS analyses revealed spherical HD-SiO2 nanoparticles with an average size of 360 nm. A multilayered elastomer hybrid sheet, consisting of a PDMS-based circuit-protecting body, a water resistance layer of HD-SiO2, a planarization layer, and a biocompatible layer of polydopamine, was fabricated and characterized. The water resistance layer exhibited superhydrophobic properties, with a water contact angle of 154.7° and a 27% reduction in water vapor transmission rate (WVTR) compared to the circuit-protecting body alone. The device packaged with both the circuit-protecting body and water resistance layer demonstrated a tenfold increase in operational lifespan in water medium compared to the device without the water resistance layer. Cytotoxicity and cell proliferation tests on human dermal fibroblast cells (HDFn) confirmed the biocompatibility of the multilayered sheet, with no significant cytotoxicity observed over 48 h.

Evaluating the Role of Hyperbaric Oxygen Therapy in Enhancing Skin Graft Outcomes: Mechanisms, Clinical Evidence, and Comparative Efficacy

Skin grafting is a critical procedure for treating skin defects from burns, trauma, and surgical interventions, yet complications such as ischemia, necrosis, and infection can limit graft success. Hyperbaric Oxygen Therapy (HBOT) has emerged as a promising adjunctive treatment that enhances skin graft viability through mechanisms including enhanced oxygenation, angiogenesis, reduced inflammation, and anti-infective effects. This review synthesizes findings from clinical studies, comparative analyses, and case reports to clarify HBOT’s efficacy in improving skin graft outcomes. Methods include a comprehensive analysis of HBOT’s impact on graft take rates, healing times, and complication rates. Results indicate that HBOT significantly improves graft survival by mitigating ischemia and infection, while comparative studies show a reduction in major amputations and improved healing in complex cases, such as diabetic foot ulcers and traumatic injuries. These findings suggest that HBOT can serve as a valuable adjunct to standard grafting procedures, offering a multifaceted approach to improve graft viability, especially in high-risk cases. This review highlights HBOT’s potential for integration into wound management protocols, providing a foundation for further exploration into its efficacy and applications in reconstructive surgery.

Effect of radiation-induced graft polymerization onto pineapple nonwoven fabric reinforced polymer composite

Natural fiber-reinforced polymer composites are gaining attention for their environmental benefits, such as biodegradability and reduced carbon footprint, as well as the potential of the natural fibers to replace or partially substitute synthetic fibers in various applications. However, challenges, such as poor interfacial adhesion and moisture absorption, limit the effectiveness of natural fibers, such as pineapple nonwoven fabric (PNWF) as reinforcement materials in polymer composites. To address these challenges, this study aims to enhance the properties of PNWF through glycidyl methacrylate grafting via radiation-induced graft polymerization. A 22 factorial design was employed to assess the effects of absorbed dosage and monomer concentration on the properties of the grafted PNWF. Infrared spectroscopy and electron microscopy analyses confirmed successful grafting. The grafted PNWF exhibited improved thermal stability and mechanical properties. The resulting composites showed significant enhancements in tensile and flexural strength, specifically, with tensile strength increase ranging from 23.32 to 34.49 MPa and flexural strength from 39.14 to 54.59 MPa. Additionally, the tensile modulus ranged from 0.77 to 1.29 GPa, while the flexural modulus varied from 1.17 to 2.06 GPa. These findings highlight the potential of PNWF grafted with polyglycidyl methacrylate (PNWF-g-PGMA) as an effective reinforcement material for various applications.