keyword
MENU ▼
Read by QxMD icon Read
search

Silicone and wounds

keyword
https://www.readbyqxmd.com/read/28448714/octopus-inspired-assembly-of-nanosucker-arrays-for-dry-wet-adhesion
#1
Ying-Chu Chen, Hongta Yang
The octopus is able to adhere to slippery, fouled and irregular surfaces in the marine intertidal environment, because of its periodic infundibulum-shaped suckers on the arms. Here, we report a scalable self-assembly technique for fabricating adhesion materials that mimic octopus-sucker functionality. By utilizing spin-coated two-dimensional colloidal crystals as templates, non-close-packed nanosucker arrays are patterned on silicone substrates. The resulting nanosuckers can be deformed to exhibit great adhesive capacities on both micro-rough and flat surfaces in dry and wet environments...
April 27, 2017: ACS Nano
https://www.readbyqxmd.com/read/28441071/efficacy-and-safety-of-23-gauge-pars-plana-vitrectomy-silicone-oil-tamponade-combination-for-treatment-of-pediatric-post-traumatic-endophthalmitis
#2
Wei Jin, Yaopeng Xu, Wenjun Wang, Yiqiao Xing, Anhuai Yang
PURPOSE: To determine (i) the etiology, epidemiology, mechanism of injury, and risk factors associated with open globe injuries (OGIs) in children and (ii) visual outcomes of pediatric patients with post-traumatic endophthalmitis following 23-gauge pars plana vitrectomy (PPV) combined with silicone oil tamponade (SOT). METHODS: A total of 107 consecutive patients, <15 years of age, who had been diagnosed with post-traumatic endophthalmitis between September 2009 and October 2015, were included in this 6-year retrospective study...
April 25, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28415441/stress-stiffened-silicon-nitride-micro-bridges-array-as-substrate-with-tunable-stiffness-for-cell-culture
#3
Jianfeng Chen, Guangli Liu, Chengfu Ma, Gang Zhao, Wenqiang Du, Wulin Zhu, Jiaru Chu
Recently, interactions between one-dimensional structural stiffness of physical micro environments and cell biological process have been widely studied. However in previous studies, the influence of structural stiffness on biological process was coupled with the influence of micro fiber curvature. Therefore decoupling the influences of fiber curvature and structural stiffness on cell biological process is of prime importance. In this study, we proposed a novel cell culture substrate comprised of silicon nitride bridges whose structure stiffness can be regulated by altering the axial residual stress without changing material and geometry properties...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28408096/local-treatment-of-a-pharyngocutaneous-fistula-secondary-to-osteoradionecrosis
#4
Olga González-Antolín
Radionecrosis is a late, and difficult to treat,complication of radiotherapy performed on head and neck tumours, and it is difficult to treat. This process causes significant damage, not only in the skin, but also in muscular, nervous, vascular, and bone structures. This, in turn, leads to airway and digestive tract involvement, as well as a functional loss and a cosmetic defect that usually requires reconstructive surgery. Therefore, this process is associated with a significant loss in the quality of life of patients and involves a long hospital stay for treatment, as well as the necessary support measures...
April 10, 2017: Enfermería Clínica
https://www.readbyqxmd.com/read/28383370/dual-force-vaginoplasty-for-treatment-of-segmental-vaginal-aplasia
#5
Ali M El Saman, Mohamad A Farag, Sherif A Shazly, Mohamed Noor, Mohammed K Ali, Essam R Othman, Mansour Khalifa, Tarek A Farghly, Dina A El Saman
BACKGROUND: Vaginal aplasia occurs in 1 in 5,000-10,000 female live births. In this report, we evaluated a novel dual-force vaginoplasty technique for treatment of 11 patients with segmental vaginal aplasia. TECHNIQUE: The principle of the approach is to thin the atretic part between two counteracting forces. The instrument was inserted laparoscopically into the proximal hematocolpos. Two balloon catheters, one for drainage and one for traction, were threaded over the inserter...
May 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28377320/do-il-3-gm-csf-effect-on-the-myofibroblastic-differentiation-of-human-adipose-derived-stromal-cells
#6
Jae-Sun Lee, Son Seung Tae, Deok-Yeol Kim, Seung-Kyu Han, Woo-Kyung Kim, Eun-Sang Dhong
BACKGROUND: Capsular contracture is an incurable complication after silicone-based implant surgery. Myofibroblast is the predominant cell in the contracted capsule. We hypothesized that human adipose derive stromal cells (hASCs) together with fibroblast may show a similar phenotypic characteristics of myofibroblast after the treatment of inflammatory cytokines in vitro. MATERIALS AND METHODS: Interleukin 3 (IL-3) and granulocyte macrophage colony stimulating factor (GM-CSF) were treated in the culture of hASCs and HDFs...
April 1, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28347699/effect-of-adipose-derived-stem-cells-on-acellular-dermal-matrix-engraftment-in-a-rabbit-model-of-breast-reconstruction
#7
Ung Sik Jin, Ki Yong Hong, Young-Il Hwang
Acellular dermal matrix (ADM) is frequently used in implant-based breast reconstruction. Although there are several advantages, ADM implantation also increases the risk of certain complications. Recently, ADM seeded with adipose-derived stem cells (ADSCs) were shown to induce angiogenesis and improve wound healing. This study aimed to investigate the effects of ADSCs on ADM engraftment in a rabbit model of implant-based breast reconstruction. Silicone implants were inserted to submuscular pocket of 16 female New Zealand rabbits using ADM with or without seeding of fluorescent PKH26-labelled rabbit ADSCs...
February 28, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28326562/liposome-encapsulated-hemoglobin-accelerates-skin-wound-healing-in-diabetic-db-db-mice
#8
Tsuyoshi Fukui, Akira T Kawaguchi, Susumu Takekoshi, Muneo Miyasaka, Hideaki Sumiyoshi, Rica Tanaka
Since liposome-encapsulated hemoglobin with high O2 affinity (h-LEH, P50 O2  = 10 mm Hg) has been reported to accelerate skin wound healing in normal mice, it was tested in dB/dB mice with retarded wound healing, as seen in human diabetics. Two full-thickness dorsal wounds 6 mm in diameter encompassed by silicone stents were created in dB/dB mice. Two days later (day 2), the animals were randomly assigned to receive intravenous h-LEH (2 mL/kg, n = 7) or saline (2 mL/kg, n = 7). The same treatment was repeated 4 days after wounding (day 4), and the size of the skin lesions was analyzed by photography, surface perfusion was detected by Laser-Doppler imager, and plasma cytokines and chemokines were determined on days 0, 2, 4, and 7, when all animals were euthanized for morphological studies...
March 21, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28325530/in-vitro-measurements-of-burn-dressing-adherence-and-the-effect-of-interventions-on-reducing-adherence
#9
Michal Brichacek, Chenxi Ning, Justin P Gawaziuk, Song Liu, Sarvesh Logsetty
PURPOSE: There is a paucity of research on reducing dressing adherence. This is partly due to lack of an in vitro model, recreating the clinical variability of wounds. Previously we described an in vitro gelatin model to evaluate adherence in a standardized manner. We present evaluation of strategies to reduce adherence in six dressings. PROCEDURES: Dressing materials used were: PET (Control), fine mesh gauze coated in bismuth and petroleum jelly (BIS), nanocrystalline silver (NS), wide mesh polyester coated in polysporin ointment (WM), fine mesh cellulose acetate coated in polysporin ointment (FM), and soft silicone mesh (SIL)...
March 18, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28269987/a-simultaneously-antimicrobial-protein-repellent-and-cell-compatible-polyzwitterion-network
#10
Monika Kurowska, Alice Eickenscheidt, Diana-Lorena Guevara-Solarte, Vania Tanda Widyaya, Franziska Marx, Ali Al-Ahmad, Karen Lienkamp
A simultaneously antimicrobial, protein-repellent, and cell-compatible surface-attached polymer network is reported, which reduces the growth of bacterial biofilms on surfaces through its multifunctionality. The coating was made from a poly(oxonorbornene)-based zwitterion (PZI), which was surface-attached and cross-linked in one step by simultaneous UV-activated CH insertion and thiol-ene reaction. The process was applicable to both laboratory surfaces like silicon, glass, and gold and real-life surfaces like polyurethane foam wound dressings...
March 24, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28269276/toward-a-distributed-free-floating-wireless-implantable-neural-recording-system
#11
Pyungwoo Yeon, Xingyuan Tong, Byunghun Lee, Abdollah Mirbozorgi, Bruce Ash, Helmut Eckhardt, Maysam Ghovanloo
To understand the complex correlations between neural networks across different regions in the brain and their functions at high spatiotemporal resolution, a tool is needed for obtaining long-term single unit activity (SUA) across the entire brain area. The concept and preliminary design of a distributed free-floating wireless implantable neural recording (FF-WINeR) system are presented, which can enabling SUA acquisition by dispersedly implanting tens to hundreds of untethered 1 mm3 neural recording probes, floating with the brain and operating wirelessly across the cortical surface...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227511/toward-a-distributed-free-floating-wireless-implantable-neural-recording-system
#12
Pyungwoo Yeon, Xingyuan Tong, Byunghun Lee, Abdollah Mirbozorgi, Bruce Ash, Helmut Eckhardt, Maysam Ghovanloo, Pyungwoo Yeon, Xingyuan Tong, Byunghun Lee, Abdollah Mirbozorgi, Bruce Ash, Helmut Eckhardt, Maysam Ghovanloo, Maysam Ghovanloo, Byunghun Lee, Bruce Ash, Xingyuan Tong, Pyungwoo Yeon, Abdollah Mirbozorgi, Helmut Eckhardt
To understand the complex correlations between neural networks across different regions in the brain and their functions at high spatiotemporal resolution, a tool is needed for obtaining long-term single unit activity (SUA) across the entire brain area. The concept and preliminary design of a distributed free-floating wireless implantable neural recording (FF-WINeR) system are presented, which can enabling SUA acquisition by dispersedly implanting tens to hundreds of untethered 1 mm(3) neural recording probes, floating with the brain and operating wirelessly across the cortical surface...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28194352/application-of-a-silicone-sheet-in-negative-pressure-wound-therapy-to-treat-an-abdominal-wall-defect-after-necrotizing-fasciitis
#13
Jin Su Shin, Hwan Jun Choi
Necrotizing fasciitis (NF) is an aggressive soft-tissue infection involving the deep fascia and is characterized by extensive deterioration of the surrounding tissue. Immediate diagnosis and intensive treatment, including debridement and systemic antibiotics, represent the most important factors influencing the survival of NF patients. In this report, we present a case of NF in the abdomen due to an infection caused by a perforated small bowel after abdominal liposuction. It was successfully treated using negative-pressure wound therapy, in which a silicone sheet functioned as a barrier between the sponge and internal organs to protect the small bowel...
January 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28155844/enhanced-biocompatibility-of-neural-probes-by-integrating-microstructures-and-delivering-anti-inflammatory-agents-via-microfluidic-channels
#14
Bin Liu, Eric Kim, Anika Meggo, Sachin Gandhi, Hao Luo, Srinivas Kallakuri, Yong Xu, Jinsheng Zhang
OBJECTIVE: Biocompatibility is a major issue for chronic neural implants, involving inflammatory and wound healing responses of neurons and glial cells. To enhance biocompatibility, we developed silicon-parylene hybrid neural probes with open architecture electrodes, microfluidic channels and a reservoir for drug delivery to suppress tissue responses. APPROACH: We chronically implanted our neural probes in the rat auditory cortex and investigated (1) whether open architecture electrode reduces inflammatory reaction by measuring glial responses; and (2) whether delivery of antibiotic minocycline reduces inflammatory and tissue reaction...
April 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28129211/a-new-form-of-artificial-skin-to-promote-permanent-wound-coverage-a-preliminary-report
#15
Hsian-Jenn Wang, Lin-Gwei Wei, Chi-Hsien Wang, Ya-Chen Cheng, Junn-Liang Chang, Tai-Li Tsou, Chih-Hung Ku, Chun-Chang Li, Wen-Kuan Chiu, Chieh-Feng Chen
BACKGROUND: Although tendon-exposed or bone-exposed wounds can be resurfaced with flaps, such surgeries may not be feasible in patients with poor general or local conditions. Biosynthetic artificial skin is an alternative for critical wound coverage. We designed a new artificial skin bilayer to close difficult wounds permanently. AIM AND OBJECTIVES: This study compares incorporation and wound contraction between silicone acellular porcine dermis (SAPD) and the Integra graft (Integra Life Sciences Corp...
March 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28121865/sanativo-wound-healing-product-does-not-accelerate-reepithelialization-in-a-mouse-cutaneous-wound-healing-model
#16
Clement D Marshall, Michael S Hu, Tripp Leavitt, Leandra A Barnes, Alexander T M Cheung, Samir Malhotra, H Peter Lorenz, Scott L Delp, Stephen R Quake, Michael T Longaker
BACKGROUND: Sanativo is an over-the-counter Brazilian product derived from Amazon rainforest plant extract that is purported to improve the healing of skin wounds. Two experimental studies have shown accelerated closure of nonsplinted excisional wounds in rat models. However, these models allow for significant contraction of the wound and do not approximate healing in the tight skin of humans. METHODS: Full-thickness excisional wounds were created on the dorsal skin of mice and were splinted with silicone rings, a model that forces the wound to heal by granulation and reepithelialization...
February 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28111908/associated-use-of-silicone-vitamin-e-gauzes-and-%C3%AE-tocopherol-acetate-oil-in-healing-of-skin-graft-donor-sites
#17
Antonio Stanizzi, Manuela Bottoni, Caterina Tartaglione, Elisa Bolletta, Giovanni Di Benedetto
Split-thickness skin graft is one of the most used procedures in plastic surgery. This procedure involves numerous painful dressings at the donor site. α-Tocopherol acetate has anti-oxidative and anti-inflammatory properties and it can reduce the local bacterial growth, thereby promoting wound healing. We designed a prospective study to evaluate the effects of two different kinds of dressings at skin graft donor sites. A total of 30 patients were subjected to daily dressings with α-tocopherol acetate oil and traditional moist gauzes (group 1)...
January 23, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28097936/experimental-study-on-tissue-phantoms-to-understand-the-effect-of-injury-and-suturing-on-human-skin-mechanical-properties
#18
Arnab Chanda, Vinu Unnikrishnan, Zachary Flynn, Kim Lackey
Skin injuries are the most common type of injuries occurring in day-to-day life. A skin injury usually manifests itself in the form of a wound or a cut. While a shallow wound may heal by itself within a short time, deep wounds require surgical interventions such as suturing for timely healing. To date, suturing practices are based on a surgeon's experience and may vary widely from one situation to another. Understanding the mechanics of wound closure and suturing of the skin is crucial to improve clinical suturing practices and also to plan automated robotic surgeries...
January 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28097806/a-silicone-rubber-membrane-with-a-specific-pore-size-enhances-cell-proliferation-and-wound-regeneration-via-the-wnt-%C3%AE-catenin-pathway
#19
Rui Xu, Yang Bai, Jian Zhao, Hesheng Xia, Yi Kong, Zhihui Yao, Rongshuai Yan, Xiaorong Zhang, Xiaohong Hu, Meixi Liu, Qingwu Yang, Gaoxing Luo, Jun Wu
A porous structure is critically important for wound dressing or tissue engineering scaffolds. However, the influence of the pore sizes on cell proliferation, tissue regeneration and the underlying mechanism remains unclear. In this study, silicone rubber membranes with different pore sizes were prepared using certain constituents of liquid silicone rubber (LSR) precursor/ liquid paraffin (LP) /hexane based on our previous studies. It was found that pore size had a significant impact on cell proliferation and wound healing...
January 17, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28043851/negative-pressure-wound-therapy-in-orthopaedic-surgery
#20
REVIEW
N Robert
Negative pressure wound therapy (NPWT) consists in applying subatmospheric pressure to a wound that is sealed off by a specially designed dressing and connected by a tube to a suction pump and drainage collection system. Skin defects are extremely common in orthopaedic and trauma surgery. NPWT is valuable across a range of indications. Proven effects include an increase in blood flow, stimulation of angiogenesis, and a decrease in wound surface area. NPWT can be used to treat post-traumatic and surgical wounds, burns, and chronic wounds such as pressure sores and ulcers...
December 30, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
keyword
keyword
18403
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"