38 results match your criteria: "Triangle Regional Research and Development Center[Affiliation]"

SU-8-meta-phenylenediamine-conjugated thin film for temperature sensing.

Philos Trans A Math Phys Eng Sci

October 2024

Department of Electrical Engineering, Tel Aviv University, Ramat Aviv , Tel Aviv 69978, Israel.

Polymers have distinctive optical properties and facile fabrication methods that have been well-established. Therefore, they have immense potential for nanophotonic devices. Here, we demonstrate the temperature-sensing potential of SU8-meta-phenylenediamine (SU8-mPD), produced by epoxy amination of the SU-8 polymer.

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Touchless short-wave infrared imaging for dynamic rapid pupillometry and gaze estimation in closed eyes.

Commun Med (Lond)

August 2024

Department of Physiology and Pharmacology, Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel.

Background: Assessments of gaze direction (eye movements), pupil size, and the pupillary light reflex (PLR) are critical for neurological examination and neuroscience research and constitute a powerful tool in diverse clinical settings ranging from critical care through endocrinology and drug addiction to cardiology and psychiatry. However, current bedside pupillometry is typically intermittent, qualitative, manual, and limited to open-eye cases, restricting its use in sleep medicine, anesthesia, and intensive care.

Methods: We combined short-wave infrared (SWIR, ~0.

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Thermo-optics of gilded hollow-core fibers.

Nanoscale

July 2024

Department of Electrical Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv, 69978, Israel.

Hollow core fibers, supporting waveguiding in a void, open a room of opportunities for numerous applications owing to an extended light-matter interaction distance and relatively high optical confinement. Decorating an inner capillary with functional materials allows tailoring the fiber's optical properties further and turns the structure into a functional device. Here, we functionalize an anti-resonant hollow-core fiber with 18 nm-size gold nanoparticles, approaching a uniform 45% surface coverage along 10 s of centimeters along its inner capillary.

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Mutations in the gene (S phase Cyclin A-Associated Protein residing in the Endoplasmic Reticulum) have recently been associated with retinitis pigmentosa (RP) and intellectual disability (ID). In 2011, a possible involvement of in human diseases was discovered for the first time due to the identification of a homozygous mutation causing ID in an Iranian family. Later, five studies were published in 2019 that described patients with autosomal recessive syndromic retinitis pigmentosa (arRP) accompanied by ID and attention-deficit/hyperactivity disorder (ADHD).

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Biocompatible fluorescent agents are key contributors to the theranostic paradigm by enabling real-time in vivo imaging. This study explores the optical properties of phenylenediamine carbon dots (CDs) and demonstrates their potential for fluorescence imaging in cells and brain blood vessels. The nonlinear absorption cross-section of the CDs was measured and achieved values near 50 Goeppert-Mayer (GM) units with efficient excitation in the 775-895 nm spectral range.

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Optothermal Needle-Free Injection of Vaterite Nanocapsules.

Adv Sci (Weinh)

February 2024

Department of Electrical Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv, 69978, Israel.

The propulsion and acceleration of nanoparticles with light have both fundamental and applied significance across many disciplines. Needle-free injection of biomedical nano cargoes into living tissues is among the examples. Here a new physical mechanism of laser-induced particle acceleration is explored, based on abnormal optothermal expansion of mesoporous vaterite cargoes.

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Thin-film conformal fluorescent SU8-phenylenediamine.

Nanoscale

November 2023

Department of Electrical Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel.

The SU8 polymer is a negative photoresist widely used to produce high-quality coatings, with controllable thicknesses ranging from nanometers to millimeters, depending on fabrication protocols. Apart from conventional use cases in microelectronics and fluidics, SU8 is quite an attractive platform in nanophotonics. This material, being straightforwardly processed by ultraviolet lithography, is transparent to wavelengths longer than 500 nm.

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Pseudotumor cerebri (PTC) is a disorder characterized by increased intracranial pressure in the absence of a structural lesion or other identifiable cause. Cytokines, which are involved in the regulation of immune responses and inflammation, have been implicated in the pathogenesis of PTC. In a prospective, cross-sectional study at three centers in Israel, we analyzed cerebrospinal fluid (CSF) samples from 60 children aged 0.

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Gilded vaterite optothermal transport in a bubble.

Sci Rep

July 2023

Department of Electrical Engineering, Tel Aviv University, 69978, Ramat Aviv, Tel Aviv, Israel.

Laser beams, capable of controlling the mechanical motion of micron-scale objects, can serve as a tool, enabling investigations of numerous interaction scenarios under full control. Beyond pure electromagnetic interactions, giving rise to conventional gradient forces and radiation pressure, environment-induced thermal effects can play a role and, in certain cases, govern the dynamics. Here we explore a thermocapillary Marangoni effect, which is responsible for creating long-range few hundreds of nano-Newton forces, acting on a bubble around a 'gilded vaterite' nanoparticle.

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Peptidyl-tRNA hydrolase 2 (PTRH2) is an evolutionarily highly conserved mitochondrial protein. The biallelic mutations in the gene have been suggested to cause a rare autosomal recessive disorder characterized by an infantile-onset multisystem neurologic endocrine and pancreatic disease (IMNEPD). Patients with IMNEPD present varying clinical manifestations, including global developmental delay associated with microcephaly, growth retardation, progressive ataxia, distal muscle weakness with ankle contractures, demyelinating sensorimotor neuropathy, sensorineural hearing loss, and abnormalities of thyroid, pancreas, and liver.

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Organic Kainate Single Crystals for Second-Harmonic and Broadband THz Generation.

ACS Appl Mater Interfaces

February 2023

Department of Physical Electronics, Tel Aviv University, Ramat Aviv, Tel Aviv69978, Israel.

Organic crystals with unique nonlinear optical properties have been attracting attention owing to their capability to outperform their conventional nonorganic counterparts. Since nonlinear material responses are linked to a crystal's internal microscopic structure, molecular engineering of maximally unharmonic quantum potentials can boost macromolecular susceptibilities. Here, large-scale kainic acid (kainate) single crystals were synthesized, and their linear and nonlinear optical properties were studied in a broad spectral range, spanning the visible to THz spectral regions.

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The CLN8 disease type refers to one of the neuronal ceroid lipofuscinoses (NCLs) which are the most common group of neurodegenerative diseases in childhood. The clinical phenotypes of this disease are progressive neurological deterioration that could lead to seizures, dementia, ataxia, visual failure, and various forms of abnormal movement. In the current study, we describe two patients who presented with atypical phenotypic manifestation and protracted clinical course of CLN8 carrying a novel compound heterozygous variant at the gene.

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Multidomain Cognitive Impairment in Children With Pseudotumor Cerebri Syndrome.

J Neuroophthalmol

March 2022

Child Neurology and Development Center (MM, ATS, HZ, SSR), Hillel-Yaffe Medical Center, Hadera, Israel ; Child Neurology Unit (JG), Bnai-Zion Medical Center, Haifa, Israel ; Pediatric Department (IS, JG), Bnai-Zion Medical Center, Haifa, Israel ; The Ruth and Bruce Rappaport Faculty of Medicine (MM, IS, JG), Technion, Haifa, Israel ; The Triangle Regional Research and Development Center (RS), Kfar Qara, Israel ; and Beit Berl Academic College (RS), Israel.

Background: Although prompt and suitable treatment of pseudotumor cerebri syndrome (PTCS) leads to an excellent prognosis and can prevent optic nerve atrophy, adults show long-lasting neurocognitive deficits even with prompt treatment. The purpose of our study was to evaluate cognitive outcomes in pediatric patients with PTCS.

Methods: We performed a prospective study on children diagnosed with PTCS and a healthy control group.

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Many endogenous molecules, mostly proteins, purportedly activate the Toll-like receptor 4 (TLR4)-myeloid differentiation factor-2 (MD-2) complex, the innate immune receptor for lipopolysaccharide (LPS) derived from gram-negative bacteria. However, there is no structural evidence supporting direct TLR4-MD-2 activation by endogenous ligands. Sulfatides (3--sulfogalactosylceramides) are natural, abundant sulfated glycolipids that have variously been shown to initiate or suppress inflammatory responses.

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Background: Diabetes mellitus (DM) is considered one of the main causes of mortality, morbidity, and health care expenditures. Effectively treating this disease is of crucial importance and imposes a global challenge. The incidence of Type 2 DM (T2DM) is rapidly rising in both developing and developed countries.

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Marine bacteria associated with the green seaweed Ulva sp. for the production of polyhydroxyalkanoates.

Bioresour Technol

May 2021

Porter School of Environment and Earth Sciences, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, Israel.

This work aimed to isolate a series of bacterial strains associated with the green seaweed Ulva sp. and evaluate their capability to manufacture PHA. The effect of the type of supplemented sugars found to be in macroalgae, on the growth and PHA productivity of the strains was studied.

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A high rate of consanguinity leads to a high prevalence of autosomal recessive disorders in inbred populations. One example of inbred populations is the Arab communities in Israel and the Palestinian Authority. In the Palestinian Authority in particular, due to limited access to specialized medical care, most patients do not receive a genetic diagnosis and can therefore neither receive genetic counseling nor possibly specific treatment.

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Article Synopsis
  • * Researchers used various genetic analysis techniques (like homozygosity mapping and exome sequencing) and identified likely disease-causing variants in 95% of the families studied, including new findings linked to specific conditions.
  • * The findings suggest that prioritizing genetic testing can improve clinical care and genetic counseling for these families, given the impressive results with limited prior clinical research.
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Exclusive Temporal Stimulation of IL-10 Expression in LPS-Stimulated Mouse Macrophages by cAMP Inducers and Type I Interferons.

Front Immunol

October 2020

Department of Biochemistry & Molecular Biology, School of Neurobiology, Biochemistry & Biophysics, Tel Aviv University, Tel Aviv, Israel.

Expression of the key anti-inflammatory cytokine IL-10 in lipopolysaccharide (LPS)-stimulated macrophages is mediated by a delayed autocrine/paracrine loop of type I interferons (IFN) to ensure timely attenuation of inflammation. We have previously shown that cAMP synergizes with early IL-10 expression by LPS, but is unable to amplify the late type I IFN-dependent activity. We now examined the mechanism of this synergistic transcription in mouse macrophages at the promoter level, and explored the crosstalk between type I IFN signaling and cAMP, using the β-adrenergic receptor agonist, isoproterenol, as a cAMP inducer.

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The cAMP Pathway Amplifies Early MyD88-Dependent and Type I Interferon-Independent LPS-Induced Interleukin-10 Expression in Mouse Macrophages.

Mediators Inflamm

December 2019

Department of Biochemistry & Molecular Biology, School of Neurobiology, Biochemistry & Biophysics, Life Sciences Faculty, Tel Aviv University, Tel Aviv 69978, Israel.

Interleukin-10 (IL-10) is a key anti-inflammatory cytokine, secreted by macrophages and other immune cells to attenuate inflammation. Autocrine type I interferons (IFNs) largely mediate the delayed expression of IL-10 by LPS-stimulated macrophages. We have previously shown that IL-10 is synergistically expressed in macrophages following a costimulus of a TLR agonist and cAMP.

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The main clinical features of cerebro-facio-thoracic dysplasia (CFTD) syndrome, which were described over four decades ago, include facial dysmorphism, multiple malformations of the vertebrae and ribs, and intellectual disability. Recently, a TMCO1 gene mutation was shown to be responsible for an autosomal recessive CFTD syndrome characterized by craniofacial dysmorphism, skeletal anomalies, and intellectual disability. In the current report, we describe two members of a consanguineous family from an Arab community in Israel who were clinically diagnosed as suffering from craniofacial dysmorphism, skeletal anomalies, intellectual disability, and epilepsy.

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Background: Type 2 Diabetes Mellitus (T2DM) is becoming increasingly prevalent and is considered to be a major public health threat worldwide. Behavioral and sociodemographic factors associated with T2DM vary within different societies.

Objective: The aim of this study is to determine the various behavioral and sociodemographic factors associated with T2DM in the Arab society in Israel.

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Herein we present a consanguineous family with three children affected by foveal hypoplasia with infantile nystagmus, following an autosomal recessive mode of inheritance. The patients showed normal electroretinography responses, no signs of albinism, and no anterior segment or brain abnormalities. Upon whole exome sequencing, we identified a homozygous mutation (c.

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Mitochondrial aconitase is the second enzyme in the tricarboxylic acid (TCA) cycle catalyzing the interconversion of citrate into isocitrate and encoded by the nuclear gene ACO2. A homozygous pathogenic variant in the ACO2 gene was initially described in 2012 resulting in a novel disorder termed "infantile cerebellar retinal degeneration" (ICRD, OMIM#614559). Subsequently, additional studies reported patients with pathogenic ACO2 variants, further expanding the genetic and clinical spectrum of this disorder to include milder and later onset manifestations.

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