scholarly journals Combined Treatment of Photobiomodulation and Arginine on Chronic Wound Healing in an Animal Model

2021 ◽  
Vol 12 (1) ◽  
pp. e40-e40
Author(s):  
Atarodsadat Mostafavinia ◽  
Abdollah Amini ◽  
Houssein Ahmadi ◽  
Fatemehalsadat Rezaei ◽  
Seyed Kamran Ghoreishi ◽  
...  
Keyword(s):  
Wound Healing ◽  
Energy Density ◽  
Wound Closure ◽  
Combined Treatment ◽  
High Energy ◽  
High Energy Density ◽  
Male Rats ◽  
Control Group ◽  
Healing Wounds ◽  
The Individual

Introduction: Herein, the individual and combined effects of photobiomodulation (PBM) and arginine (ARG) on the wound healing course of an experimental model of a slow healing wound (ulcer) in rats were assessed. Methods: A total of 108 male rats were divided into 6 groups: control; lower energy density (low)-PBM; arginine ointment (ARG); low-PBM+ARG; high energy density (high)-PBM; and high-PBM+ARG. In each rat, one ischemic wound in the center of a bipedicle flap and one non-ischemic wound out of the flap were created. Both wounds were treated in the experimental groups. Microbial growth, wound area, and wound strength were assessed on days 0, 5, 10, 15, and 20 after wound infliction. Results: All non-ischemic wounds closed before day 15. High-PBM+ARG and ARG significantly increased wound closure rates compared to the control group (LSD test, P=0.000, and P=0.001, respectively) on day 10. All slow healing wounds were open on day 15 but closed completely before day 20. Low-PBM+ARG and high-PBM significantly increased wound strength (stress high load, SHL) on day 10 compared to the control group (LSD test, P=0.001, and P=0.000, respectively). ARG, high-PBM, and low-PBM+ARG significantly increased wound closure rates on day 15 relative to the control group (LSD test, P=0.000, P=0.000, and P=0.001, respectively). Conclusion: High-PBM and low-PBM+ARG have biostimulatory and antibacterial effects on slow-healing wounds, which were shown by significant increases in wound closure rates, wound strength, and inhibition of Staphylococcus aureus growth.

scholarly journals PENGARUH LUMATAN DAUN PLETEKAN (Ruellia Tuberosa L) TERHADAP LAMA PENUTUPAN LUKA PADA TIKUS PUTIH (Rattus Novergicus)

2017 ◽  
Vol 4 (2) ◽  
pp. 104
Author(s):  
Ria Susana ◽  
Rismia Agustina ◽  
Abdurahman Wahid
Keyword(s):  
Wound Healing ◽  
Treatment Group ◽  
Random Sampling ◽  
Wound Closure ◽  
Simple Random Sampling ◽  
Male Rats ◽  
Control Group ◽  
P Value ◽  
Closure Time ◽  
Significant Difference

ABSTRAKLuka didefinisikan sebagai gangguan pada fungsi dan integritas jaringan tubuh. Penyembuhan luka merupakan proses yang kompleks dari perbaikan dan remodeling jaringan sebagai respon terhadap cedera. Pletekan (ruellia tuberosa l) mengandung flavonoid, glikosida, phenol, saponin dan nutrisi yang diharapkan mempercepat penyembuhan luka. Tujuan penelitian ini adalah mengidentifikasi pengaruh  lumatan daun pletekan (ruellia tuberosa l) terhadap lama penutupan luka pada tikus putih (rattus novergicus). Penelitian ini merupakan studi eksperimental dengan rancangan posttest only control, menggunakan teknik simple random sampling. Sampel yang digunakan sebanyak 40 ekor tikus jantan dengan luka insisi bersih sepanjang 3 cm yang dibagi menjadi 2 kelompok yaitu kelompok kontrol dan kelompok perlakuan. Data yang diukur adalah rata-rata lama penutupan luka. Data yang diperoleh dianalisis menggunakan uji mann-whitney dengan derajat kepercayaan 95% menunjukkan perbedaan yang signifikan rata-rata lama penutupan luka antara kelompok kontrol (8,45) dan kelompok perlakuan (3,75) dengan p-value 0,000 (p<0,05). Kesimpulan penelitian ini adalah terdapat pengaruh lumatan daun  pletekan (ruellia tuberosa l) terhadap lama penutupan luka pada tikus putih (rattus novergicus).Kata-kata kunci: luka insisi bersih, pletekan (ruellia tuberosa l), lama penutupan luka.ABSTRACTWounds is defined as disruption of the function and integrity of body tissues. Wound healing isa complex process of tissue repair and remodelling in response to injury. Pletekan (ruellia tuberosa l) contains flavonoids, glycosides, phenols, saponins and nutritive value that suppose to accelerate wound healing. The purpose of this study was to identify the effect of pletekan leaves (ruellia tuberosa) to wound closure time in rats (rattus novergicus). This research was an experimental study with post- test design using the simple random sampling technique. The samples were 40 male rats with a clean incision wound along 3 cm which were divided into two groups, control group and treatment group. The measured data were the average of wound closure time. Data were analyzed using the mann- whitney test with 95 % confidence level showed a significant difference between the control group (8,45) and the treatment group (3,75) with p-value 0,000 (p<0,005). There was significant effect of ruellia tuberosa l to wound closure time in rattus novergicus.Keywords: wounds, ruellia tuberosa , wound closure time.

A HIGH ENERGY DENSITY ZINC/OXYGEN BATTERY SYSTEM

1966 ◽  
Author(s):  
S. CHODOSH ◽  
E. KATSOULIS ◽  
M. ROSANSKY
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Battery System

Efficient Co-Harvesting of Solar Energy and Low-Grade Heat by Molecular Photoswitches for High Energy Density, Long-Term Stable Solar Thermal Battery

2019 ◽  
Author(s):  
Zhao-Yang Zhang ◽  
Tao LI
Keyword(s):  
Energy Density ◽  
Solar Energy ◽  
High Performance ◽  
High Energy ◽  
Solar Thermal ◽  
High Energy Density ◽  
Low Grade ◽  
Thermal Battery ◽  
Low Grade Heat

Solar energy and ambient heat are two inexhaustible energy sources for addressing the global challenge of energy and sustainability. Solar thermal battery based on molecular switches that can store solar energy and release it as heat has recently attracted great interest, but its development is severely limited by both low energy density and short storage stability. On the other hand, the efficient recovery and upgrading of low-grade heat, especially that of the ambient heat, has been a great challenge. Here we report that solar energy and ambient heat can be simultaneously harvested and stored, which is enabled by room-temperature photochemical crystal-to-liquid transitions of small-molecule photoswitches. The two forms of energy are released together to produce high-temperature heat during the reverse photochemical phase change. This strategy, combined with molecular design, provides high energy density of 320-370 J/g and long-term storage stability (half-life of about 3 months). On this basis, we fabricate high-performance, flexible film devices of solar thermal battery, which can be readily recharged at room temperature with good cycling ability, show fast rate of heat release, and produce high-temperature heat that is >20<sup> o</sup>C higher than the ambient temperature. Our work opens up a new avenue to harvest ambient heat, and demonstrate a feasible strategy to develop high-performance solar thermal battery.

Efficient Co-Harvesting of Solar Energy and Low-Grade Heat by Molecular Photoswitches for High Energy Density, Long-Term Stable Solar Thermal Battery

2019 ◽  
Author(s):  
Zhao-Yang Zhang ◽  
Tao LI
Keyword(s):  
Energy Density ◽  
Solar Energy ◽  
High Performance ◽  
High Energy ◽  
Solar Thermal ◽  
High Energy Density ◽  
Low Grade ◽  
Thermal Battery ◽  
Low Grade Heat

Solar energy and ambient heat are two inexhaustible energy sources for addressing the global challenge of energy and sustainability. Solar thermal battery based on molecular switches that can store solar energy and release it as heat has recently attracted great interest, but its development is severely limited by both low energy density and short storage stability. On the other hand, the efficient recovery and upgrading of low-grade heat, especially that of the ambient heat, has been a great challenge. Here we report that solar energy and ambient heat can be simultaneously harvested and stored, which is enabled by room-temperature photochemical crystal-to-liquid transitions of small-molecule photoswitches. The two forms of energy are released together to produce high-temperature heat during the reverse photochemical phase change. This strategy, combined with molecular design, provides high energy density of 320-370 J/g and long-term storage stability (half-life of about 3 months). On this basis, we fabricate high-performance, flexible film devices of solar thermal battery, which can be readily recharged at room temperature with good cycling ability, show fast rate of heat release, and produce high-temperature heat that is >20<sup> o</sup>C higher than the ambient temperature. Our work opens up a new avenue to harvest ambient heat, and demonstrate a feasible strategy to develop high-performance solar thermal battery.

Si Nanowire Anode Prepared by Chemical Etching for High Energy Density Lithium-ion Battery

2013 ◽  
Vol 28 (11) ◽  
pp. 1207-1212 ◽  
Author(s):  
Jian-Wen LI ◽  
Ai-Jun ZHOU ◽  
Xing-Quan LIU ◽  
Jing-Ze LI
Keyword(s):  
Energy Density ◽  
Lithium Ion Battery ◽  
Chemical Etching ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Si Nanowire

Stabilization of Nickel-Rich Layered Cathode Materials of High Energy Density by Ca Doping

2018 ◽  
Vol 28 (5) ◽  
pp. 273-278
Author(s):  
Beomhee Kang ◽  
Soonhyun Hong ◽  
Hongkwan Yoon ◽  
Dojin Kim ◽  
Chunjoong Kim
Keyword(s):  
Energy Density ◽  
Cathode Materials ◽  
High Energy ◽  
High Energy Density ◽  
Ca Doping ◽  
Layered Cathode Materials

Synthesis of New High Energy Density Matter (HEDM): Extra High Energy Oxidizers and Fuels

2000 ◽  
Author(s):  
Robert J. Schmitt ◽  
Jeffrey C. Bottaro ◽  
Mark Petrie ◽  
Paul E. Penwell
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Density Matter
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