scholarly journals Radiation sterilization of Honey and Honey-Alginate Wound Dressing from Stingless Bee (Tetragonula biroi) Collected from Sta. Maria, Laguna, Philippines

2021 ◽  
Vol 11 (2) ◽  
pp. 217-223
Author(s):  
Davison Baldos ◽  
◽  
Joseph Puno ◽  
Levelyn Tolentino ◽  
Djowel Montefalcon ◽  
...  
Keyword(s):  
Electron Beam ◽  
Physicochemical Properties ◽  
Wound Dressing ◽  
Transmission Rate ◽  
Wound Care ◽  
Stingless Bee ◽  
Soluble Solids ◽  
Radiation Sterilization ◽  
Fluid Handling ◽  
Potential Use

This study was conducted to determine the effect of radiation sterilization on alginate wound dressing containing honey from the Philippine stingless bee, Tetragonula biroi. Our results show that a radiation dose of 30 kGy did not affect the antibacterial property of honey against Staphylococcus aureus. Electron-beam irradiation did not produce significant alterations in the physicochemical properties (pH, total soluble solids, and flavonoids); however, the total phenolics was significantly increased in honey with higher irradiation doses. Demonstrating that irradiation can be applied to honey with negligible physicochemical effects, honey was incorporated in alginate and exposed to a sterilization dose of 25 kGy using an electron beam facility. Irradiation did not affect the physicochemical properties (pH, moisture content, gel fraction, moisture vapor transmission rate (MVTR), and fluid handling capacity) of the honey alginate wound dressing (HAWD). The perspectives for the potential use of irradiated HAWD as a natural product-based substitute for commercial wound care products may be considered.

scholarly journals Experimental Investigation of the Properties of Electrospun Nanofibers for Potential Medical Application

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Anhui Wang ◽  
Chao Xu ◽  
Chuanwei Zhang ◽  
Yunna Gan ◽  
Bin Wang
Keyword(s):  
Wound Dressing ◽  
Transmission Rate ◽  
Electrospun Nanofibers ◽  
Medical Application ◽  
Superior Performance ◽  
Fluid Uptake ◽  
Ag Particles ◽  
Dressing Materials ◽  
Potential Use

Polymer based nanofibers using ethylene-co-vinyl alcohol (EVOH) were fabricated by electrospinning technology. The nanofibers were studied for potential use as dressing materials for skin wounds treatment. Properties closely related to the clinical requirements for wound dressing were investigated, including the fluid uptake ability (FUA), the water vapour transmission rate (WVTR), the bacteria control ability of nanofibers encapsulated with different antibacterial drugs, and Ag of various concentrations. Nanofibre degradation under different environmental conditions was also studied for the prospect of long term usage. The finding confirms the potential of EVOH nanofibers for wound dressing application, including the superior performance compared to cotton gauze and the strong germ killing capacity when Ag particles are present in the nanofibers.

scholarly journals Ultrasonication of Thawed Huyou Juice: Effects on Cloud Stability, Physicochemical Properties and Bioactive Compounds

Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1695
Author(s):  
Xinyue Zhou ◽  
Wenjun Wang ◽  
Xiaobin Ma ◽  
Enbo Xu ◽  
Donghong Liu
Keyword(s):  
Physicochemical Properties ◽  
Bioactive Compounds ◽  
Ultrasonic Treatment ◽  
Frozen Storage ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Ultrasonic Power ◽  
Minimal Impact ◽  
Sedimentation Behavior ◽  
Thawing Process

In order to remove the flocculent precipitation in Huyou juice after frozen storage and thawing process, the thawed juice was ultrasonically treated with different power (45–360 W) and time (10–60 min) in ice bath (~0 °C), and its sedimentation behavior during storage was observed. After optimization, the cloud stability of juice could be improved by ultrasonic treatment with ultrasonic power of 360 W or more for at least 30 min, which could be stable during 7 days of storage at 4 °C. Under this optimal condition (360 W, 30 min), the effects of ultrasound on the physicochemical properties and bioactive compounds of thawed Huyou juice during storage were investigated. The results showed that with smaller particle size and lower polymer dispersity index, ultrasonic treatment did not significantly change the color, soluble solids, titratable acidity, and bioactive compounds including flavonoids and other phenolics. In addition, all properties of samples were at the same level during storage. Thus, ultrasound was applicable since it can improve the cloud stability of Huyou juice with minimal impact on its physicochemical properties and nutritional quality compared to the untreated one.

Effects of pyrolysis temperature on the physicochemical properties of biochar derived from vermicompost and its potential use as an environmental amendment

RSC Advances ◽  
2015 ◽  
Vol 5 (50) ◽  
pp. 40117-40125 ◽  
Author(s):  
Gang Yang ◽  
Zhanghong Wang ◽  
Qiming Xian ◽  
Fei Shen ◽  
Cheng Sun ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Aqueous Solutions ◽  
Pyrolysis Temperature ◽  
Potential Use

Biochar derived from vermicompost can be employed as an excellent adsorbent for removing contaminants from aqueous solutions.

Mussel-inspired adhesive gelatin–polyacrylamide hydrogel wound dressing loaded with tetracycline hydrochloride to enhance complete skin regeneration

Soft Matter ◽  
2022 ◽  
Author(s):  
Yamei Wang ◽  
Dongdong Xiao ◽  
Lin Quan ◽  
Hongbin Chai ◽  
Xiaofeng Sui ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Wound Dressing ◽  
Antibacterial Property ◽  
Wound Care ◽  
Skin Regeneration ◽  
Tetracycline Hydrochloride ◽  
Market Size ◽  
Good Mechanical Property ◽  
Polyacrylamide Hydrogel

Even though the global wound care market size was valued at USD 19.83 billion in 2020, it is still a challenge to develop a hydrogel-based wound dressing with a good mechanical property, adhesiveness and antibacterial property.

Wound-Care Resources on the Internet

2006 ◽  
Vol 96 (3) ◽  
pp. 264-268
Author(s):  
Charles R. Fikar ◽  
Brigitte Delinois
Keyword(s):  
Web Sites ◽  
Wound Care ◽  
Medical Practitioner ◽  
Antibiotic Use ◽  
Educational Process ◽  
Reference Source ◽  
Internet Resources ◽  
Hyperbaric Medicine ◽  
Potential Use ◽  
Selection Of

An updated selection of high-quality Internet resources related to wound and ulcer care is presented. Of potential use to the podiatric medical practitioner, educator, resident, and student, some Web sites that cover hyperbaric medicine, antibiotic use, and wound and ulcer prevention are also included. These Web sites have been evaluated on the basis of their potential to enhance the practice of podiatric medicine, in addition to contributing to the educational process. Readers who require a quick reference source to wound and ulcer care may find this report useful. (J Am Podiatr Med Assoc 96(3): 264–268, 2006)

scholarly journals Combining ability and heterosis for agronomic traits in chili pepper

2012 ◽  
Vol 30 (2) ◽  
pp. 226-233 ◽  
Author(s):  
Rosana Rodrigues ◽  
Leandro SA Gonçalves ◽  
Cintia dos S Bento ◽  
Claudia P Sudré ◽  
Renata R Robaina ◽  
...  
Keyword(s):  
Combining Ability ◽  
Agronomic Traits ◽  
Fruit Weight ◽  
Matter Content ◽  
Soluble Solids ◽  
Dry Matter Content ◽  
Additive Effects ◽  
Dry Fruit ◽  
Potential Use ◽  
Janeiro State

The Capsicum breeding has been developed with emphasis in bell pepper (Capsicum annuum) and few studies are available in other species, especially C. baccatum, which has potential use not only as disease resistance source but also in obtaining new genotypes suitable for farmers' production. In the present work, the combining ability of ten C. baccatum hybrids, along with their five parentals, were tested considering 12 agronomic traits. The hybrids were produced from a complete diallel without reciprocals and assessed in greenhouse conditions, in Campos dos Goytacazes, Rio de Janeiro state, Brazil, during the period July to December 2009. The experimental design was a randomized block with three replications and the following agronomic traits evaluated: canopy diameter (CD), plant height (PH), days to fructification (DF), number of fruits per plant (NFP), mean fruit weight (FW), dry fruit matter weight (FDM), dry matter content (DM), fruit length (FL), fruit diameter (FD), pulp thickness (PT), total soluble solids (TSS) and yield per plant (PP). Significant differences were observed only for general combining ability (GCA) in regard to PH, FW, FDM, DM, PT and TSS, indicating that additive effects were involved on the control of these characters. For CD, DF, NFP, FL, FD and PP, there was significance not only for GCA but also for specific combining ability (SCA) indicating that non-additive and additive effects were important in genetic control of these traits. The hybrids UENF 1629 X UENF 1732, UENF 1616 X UENF 1732 and UENF 1624 X UENF 1639 were considered superior because they have favorable agronomic traits.

scholarly journals Gellan Gum Hydrogels Filled Edible Oil Microemulsion for Biomedical Materials: Phase Diagram, Mechanical Behavior, and In Vivo Studies

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3281
Author(s):  
Muhammad Zulhelmi Muktar ◽  
Muhammad Ameerul Amin Bakar ◽  
Khairul Anuar Mat Amin ◽  
Laili Che Rose ◽  
Wan Iryani Wan Ismail ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Thermal Behavior ◽  
Chemical Interaction ◽  
Ternary Phase Diagram ◽  
Transmission Rate ◽  
Wound Care ◽  
Gellan Gum ◽  
In Vivo Studies ◽  
Histological Evaluation

The demand for wound care products, especially advanced and active wound care products is huge. In this study, gellan gum (GG) and virgin coconut oil (VCO) were utilized to develop microemulsion-based hydrogel for wound dressing materials. A ternary phase diagram was constructed to obtain an optimized ratio of VCO, water, and surfactant to produce VCO microemulsion. The VCO microemulsion was incorporated into gellan gum (GG) hydrogel (GVCO) and their chemical interaction, mechanical performance, physical properties, and thermal behavior were examined. The stress-at-break (σ) and Young’s modulus (YM) of GVCO hydrogel films were increased along with thermal behavior with the inclusion of VCO microemulsion. The swelling degree of GVCO hydrogel decreased as the VCO microemulsion increased and the water vapor transmission rate of GVCO hydrogels was comparable to commercial dressing in the range of 332–391 g m−2 d−1. The qualitative antibacterial activities do not show any inhibition against Gram-negative (Escherichia coli and Klebsiella pneumoniae) and Gram-positive (Staphylococcus aureus and Bacillus subtilis) bacteria. In vivo studies on Sprague–Dawley rats show the wound contraction of GVCO hydrogel is best (95 ± 2%) after the 14th day compared to a commercial dressing of Smith and Nephew Opsite post-op waterproof dressing, and this result is supported by the ultrasound images of wound skin and histological evaluation of the wound. The findings suggest that GVCO hydrogel has the potential to be developed as a biomedical material.

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