Antioxidant and multi-sensitive PNIPAAm/keratin double network gels for self-stripping wound dressing application

2021 ◽  
Author(s):  
Xiao Han ◽  
Yang Rong ◽  
Xiuzhen Wan ◽  
Jie Dou ◽  
Jiang Yuan ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Absorptive Capacity ◽  
Wound Dressing ◽  
Tissue Fluid ◽  
Double Network ◽  
Humid Environment ◽  
Exchange Function

Hydrogel is a potential wound dressing material due to its ability to maintain a humid environment, the strong absorptive capacity of exuded tissue fluid, and gas exchange function. Herein, poly(N-isopropyl...

CO2 and Lung Mechanical or Gas Exchange Function: The authors reply

2004 ◽  
Vol 32 (5) ◽  
pp. 1240-1241
Author(s):  
John G. Laffey ◽  
Brian P. Kavanagh
Keyword(s):  
Gas Exchange ◽  
Exchange Function

scholarly journals Gas Exchange Function of the Middle Ear Mucosa in Patients with Cleft Palate.

1998 ◽  
Vol 91 (3) ◽  
pp. 227-231
Author(s):  
Makito TANABE ◽  
Haruo Takahashi ◽  
Iwao HONJI ◽  
Masaki SAWADA
Keyword(s):  
Gas Exchange ◽  
Cleft Palate ◽  
Middle Ear ◽  
Middle Ear Mucosa ◽  
Exchange Function

scholarly journals Damaged lung gas exchange function of discharged COVID-19 patients detected by hyperpolarized 129Xe MRI

2020 ◽  
Vol 7 (1) ◽  
pp. eabc8180
Author(s):  
Haidong Li ◽  
Xiuchao Zhao ◽  
Yujin Wang ◽  
Xin Lou ◽  
Shizhen Chen ◽  
...  
Keyword(s):  
Lung Function ◽  
Gas Exchange ◽  
Recovery Process ◽  
Blood Exchange ◽  
Structural Abnormalities ◽  
Hyperpolarized 129Xe ◽  
Magnetic Resonance Imaging Mri ◽  
And Function ◽  
Exchange Function ◽  
The Impact

The recovery process of COVID-19 patients is unclear. Some recovered patients complain of continued shortness of breath. Vasculopathy has been reported in COVID-19, stressing the importance of probing pulmonary microstructure and function at the alveolar-capillary interface. While computed tomography (CT) detects structural abnormalities, little is known about the impact of disease on lung function. 129Xe magnetic resonance imaging (MRI) is a technique uniquely capable of assessing ventilation, microstructure, and gas exchange. Using 129Xe MRI, we found that COVID-19 patients show a higher rate of ventilation defects (5.9% versus 3.7%), unchanged microstructure, and longer gas-blood exchange time (43.5 ms versus 32.5 ms) compared with healthy individuals. These findings suggest that regional ventilation and alveolar airspace dimensions are relatively normal around the time of discharge, while gas-blood exchange function is diminished. This study establishes the feasibility of localized lung function measurements in COVID-19 patients and their potential usefulness as a supplement to structural imaging.

Preparation and Characterization of Low-Methoxyl Pectin/Bletilla Striata Composite Membranes

2011 ◽  
Vol 287-290 ◽  
pp. 140-144 ◽  
Author(s):  
Ching Wen Lou ◽  
Jin Jia Hu ◽  
Chao Tsang Lu ◽  
Chao Chiung Huang ◽  
Ming Yuan Sie ◽  
...  
Keyword(s):  
Calcium Chloride ◽  
Wound Dressing ◽  
Chloride Solution ◽  
Water Retention ◽  
Composite Membranes ◽  
Calcium Chloride Solution ◽  
The Body ◽  
Water Stability ◽  
Tissue Fluid ◽  
Bletilla Striata

The skin is the largest organ in the body composed of the epidermis, dermis, and subcutaneous tissue through the latter it is integrated with deeper tissues. The major function of the skin is to shield out attacks, acting as a barrier. The skin can trigger a series of self-healing procedure when it is damaged. The healing process can be divided into three phases: inflammatory, tissue hyperplasia, and tissue reconstruction. Particularly during tissue hyperplasia, fibroblast proliferation and collagen deposition play important roles in the healing. The healing could be accelerated if wound dressing can be properly applied. An ideal wound dressing is capable of absorbing tissue fluid, keeping the wound moistured, stopping bleeding, attaching to the wound surface properly without sticking to the wound tissues, protecting the wound from infection, and accelerating the wound recovery. In this study, the composite membranes was made by adding mixed solutions of low-methoxyl pectin and Bletilla striata, which is a traditional Chinese medicine, into calcium chloride solution. The low-methoxyl pectin is cross-linked with calcium ions, forming a hydrogel. Membranes of varying ratio of the low-methoxyl pectin and Bletilla striata were prepared seeking for the optimal manufacturing parameters to use to investigate its effects on the water stability, water retention, contact angle and degree of swelling of the composite membranes. The results showed that when the ratio of low-methoxyl pectin solutioin (2 wt%) and Bletilla striata extract is 80/20 was added into 40 ml of 0.3 wt% calcium chloride solution, the composite membrane had the optimal performance in terms of the water stability, water retention, and swelling.

Simultaneous assessment of both lung morphometry and gas exchange function within a single breath-hold by hyperpolarized 129 Xe MRI

2017 ◽  
Vol 30 (8) ◽  
pp. e3730 ◽  
Author(s):  
Jianping Zhong ◽  
Huiting Zhang ◽  
Weiwei Ruan ◽  
Junshuai Xie ◽  
Haidong Li ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Breath Hold ◽  
Single Breath ◽  
Single Breath Hold ◽  
Lung Morphometry ◽  
Exchange Function ◽  
Simultaneous Assessment

scholarly journals Effects of Bolus Injection of Soybean-Based Fat Emulsion and Fatty Acids on Pulmonary Gas Exchange Function

2009 ◽  
Vol 32 (3) ◽  
pp. 500-503 ◽  
Author(s):  
Yoichi Ishitsuka ◽  
Hiroshi Moriuchi ◽  
Changqing Yang ◽  
Saeid Golbidi ◽  
Mitsuru Irikura ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Gas Exchange ◽  
Bolus Injection ◽  
Pulmonary Gas Exchange ◽  
Fat Emulsion ◽  
Exchange Function

Gas-Exchange Function of a Preprimed Pediatric Oxygenator Stored for One Year for Emergency Cardiopulmonary Bypass

1992 ◽  
Vol 16 (5) ◽  
pp. 502-504 ◽  
Author(s):  
Tetsuro Otsu ◽  
Hidenori Terasaki ◽  
Hyun Choi ◽  
Akihiko Tajiri ◽  
Taisuke Okamoto ◽  
...  
Keyword(s):  
Cardiopulmonary Bypass ◽  
Gas Exchange ◽  
One Year ◽  
Exchange Function

Oksiv-Delta preproduction system for functional diagnosis of the gas-exchange function of lungs

2007 ◽  
Vol 41 (4) ◽  
pp. 198-200
Author(s):  
O. V. Grishin ◽  
V. K. Makukha ◽  
V. G. Grishin ◽  
S. V. Basalaeva ◽  
N. V. Ustyuzhaninova ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Functional Diagnosis ◽  
Exchange Function

The role of halogenated inhalation anesthetics in the organization of gas exchange function of the lungs in thoracic surgery

2021 ◽  
Author(s):  
Dmitry Kabakov ◽  
Margarita Vyzhigina ◽  
Dmitry Bazarov ◽  
Andrey Zaytsev ◽  
Alexey Kavochkin ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Thoracic Surgery ◽  
Inhalation Anesthetics ◽  
Exchange Function
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