Abstract Our previous study has revealed that acoustic resonances have non-negligible effects on photoacoustic signals for a liquid sample confined in thin tube. In this paper, we present numerical and experimental studies the of tube hardness directivity generated signal. A glass capillary silicone 1 mm diameter were tested using pulsed light 637 nm wavelength. Black ink was as material. capil...

INTRODUCTION Transplantation of bone marrow stromal cells (BMSCs) or Schwann cells (SCs) can increase axonal regeneration in peripheral nerve injuries. Based on our previous investigations, the goal of the present work was to examine the individual and synergistic effects of the two different cell types in sciatic nerve injury. We pursued to evaluate the effects of BMSCs and SCs co-transplantat...

purpose: to evaluate the effect of stenosis nature on success of silicone intubation for nasosolacrimal duct stenosis (nlds) in adults (patent nasolacrimal duct with resistance to positive-pressure irrigation) methods: an interventional case series of consecutive monocanalicular and bicanalicular silicone intubation for nasolacrimal duct stenosis in adults were reviewed. the severity of the ste...

1 Tissue Repair Laboratory, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran, 2 Research Center for Neural Repair (RCNR), University of Tehran, Tehran, Iran, 3 Department of Orthopedic and Trauma Surgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran, 4 Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran,...

Multiple nerve branches were created during the regeneration procedure after a nerve injury and such multiple branches are suggested to be used to control, for example, prosthesis with many degrees of freedom. Transected rat sciatic nerve stumps were inserted into a nine mm long silicone tube, which contained four, five mm long, smaller tubes, thus leaving a five mm gap for regenerating nerve f...

Silicone tubing is used in small-diameter long-sized tubes for medical applications, such as urinary catheters. However, bacteria urine adhere to the catheters, forming colonies and biofilms resulting blockages tract infections. Therefore, we have reported a method of AC high-voltage plasma chemical vapor deposition prevent bacterial adhesion by depositing diamond-like carbon (DLC) on lumen sil...

OBJECTIVES The aim of this study is to investigate the effects of earmolds made of silicone and acrylic on outer ear canal resonance characteristics in terms of resonance frequency and amplitude measured in a hearing aid fitting. MATERIALS AND METHODS Outer ear canal resonance frequencies and amplitudes in open ears and those measured with silicone and acrylic ear molds were obtained from 30 ...

the effect of nerve growth factor (ngf) on regeneration of rat sciatic nerves in adult rat was studied. the sciatic nerve was cut out across a 6‑mm gap, then the proximal and distal stumps were inserted into the silicone tube chamber. 7s ngf was extracted from submaxillary gland and then was injected into the silicone in experimental group. after seven months nerve was transected and stained wi...

PURPOSE We aimed to compare the outcomes of primary external dacryocystorhinostomy and silicone tube with anterior and posterior mucosal flap anastomosis, versus dacryocystorhinostomy and silicone intubation with anterior mucosal flap anastomosis. METHODS We utilized the electronic databases PubMed, EMBASE, Ovid, Cochrane Central Register of Controlled Trials, and MEDLINE® to find articles re...

Morphogenic conversion of Candida from a yeast to hyphal morphology plays a pivotal role in the pathogenicity of Candida species. Both Candida albicans and Candida tropicalis, in combination with a variety of different bacterial strains and species, appear in biofilms on silicone-rubber voice prostheses used in laryngectomized patients. Here we study biofilm formation on silicone-rubber by C. a...