A5021096406- Carbon Nanotubes in Composites
- Advanced Fiber Optic Sensors
- Thermal properties of materials
- Mechanical and Optical Resonators
- Graphene research and applications
- Thermal Radiation and Cooling Technologies
- 2D Materials and Applications
- Graphene and Nanomaterials Applications
- Gas Sensing Nanomaterials and Sensors
- Advanced Sensor and Energy Harvesting Materials
- Gold and Silver Nanoparticles Synthesis and Applications
- Photonic and Optical Devices
- Analytical Chemistry and Sensors
- Perovskite Materials and Applications
- Electromagnetic wave absorption materials
- Monoclonal and Polyclonal Antibodies Research
- Chalcogenide Semiconductor Thin Films
- Advanced Sensor Technologies Research
- Natural Language Processing Techniques
- Maternal Mental Health During Pregnancy and Postpartum
- Attachment and Relationship Dynamics
- Photonic Crystals and Applications
- Advanced Memory and Neural Computing
- Biosimilars and Bioanalytical Methods
- Child and Adolescent Psychosocial and Emotional Development
Immunai (United States)
2025
Warsaw University of Technology
2015-2024
NHS Lothian
2014
In this work, we have prepared a series of polydimethylsiloxane (PDMS) composites containing various graphene flakes loadings (0.02-2 wt%), and their broadband optical properties are being investigated. We demonstrate the tunability evolution transmittance reflection spectra in wide spectral range (0.4-200 μm) as function content. Using these data derive wavelength-dependent absorption coefficient (α) values. Our results show that α is roughly constant visible IR ranges, and, surprisingly,...
We propose a method for monitoring the large-scale homogeneity of reduction process graphene oxide. For this purpose, Raman mapping technique is employed to probe evolution phonon properties two different oxide (GO) thin films upon controllable thermal reduction. The GO reflected by upshift statistical distribution relative intensity ratio G and D peaks (I D/I G) spectra consistent with obtained chemically reduced GO. In addition, shifts position distributions main modes ([Formula: see...
In this work, we study optical spectroscopy of graphene flakes and its derivatives such as oxide reduced in the same surfactant-free aqueous solution. We show that transmittance (T) absorbance (A) spectra different suspension is nearly feature-less a function wavelength (λ) VIS-NIR range (350-1000 nm) except solution smallest flakes, they change linearly with concentration. The absorption coefficient (at 660 pure seems to be flake-size dependent, changing from ∼730 mL·mg-1m-1 (for ∼25 µm...
Abstract Background Single-cell technologies enable the fine mapping of disease and treatment mechanisms in inflammatory bowel (IBD). We sought to leverage these insights discover novel drug targets with precise therapeutic hypotheses. To this end, we previously constructed one largest integrated single-cell atlas IBD patient-derived tissue samples1. then used Immunai’s ImmunoDynamics EngineTM, a proprietary machine learning (ML) framework, identify transcriptional signatures inflammation...
ObjectiveThis study explores the father's paternal role and relationships when his partner baby are admitted to a Perinatal Mental Health Unit.It contributes an important understudied area of perinatal mental health makes clinical recommendations. BackgroundThe importance establishing good attachment in first months life has had increasing prominence development infant last 60 years.Parental separation can negatively impact attachment.Furthermore, maternal postnatal is known affect...
In the age of mobile electronics and increased aerospace interest, multifunctional materials such as polymer composites reported here are interesting alternatives to conventional materials, offering reduced cost size an electrical device packaging. We report a detailed study ecological dual-functional composite for electromagnetic interference (EMI) shielding heat management applications. studied series polylactic acid/graphene nanoplatelet with six graphene loadings, up 15 wt%, three...
Abstract A detailed study of temperature‐dependent phonon properties exfoliated titanium disulphide (TiS 2 ) nanosheets probed by Raman spectroscopy in the 80‐ to 450‐K temperature range is reported here. The TiS mode ( E g , 1g and Sh) positions exhibit linear shift dependences; however, contradiction typical behavior, Sh surprisingly exhibits positive first‐order coefficient (χ=0.0592 cm ‐1 /K) with increase temperature. In addition, widths studied peaks typically peak intensity ratio...
We report a surfactant-free exfoliation method of WS2 flakes combined with vacuum filtration to fabricate thin (<50 nm) films, that can be transferred on any arbitrary substrate. Films are composed (<4 single flakes, forming large size uniform film, verified by AFM and SEM. Using statistical phonons investigation, we demonstrate structural quality uniformity the film sample provide first-order temperature coefficient χ, which shows linear dependence over 300-450 K range. Electrical...
An innovative idea of exploiting unique properties graphene oxide (GO) in long wave ultraviolet A (UVA) radiation sensor design is presented. The assumes that the temperature changes around a highly birefringent (HB) fiber can be induced by UVA radiation. Particular attention case detection should focused on GO, which has high absorption whole UV range. Since lighting increases internal energy as consequence, local raise surface HB observed. This increase influences stress distribution...
The innovative idea of this paper implies the possibility to exploit properties graphene oxide (GO) UV radiation sensor design. assumes that a temperature change around fiber can be induced by radiation. Particular attention in case detection merits GO, which has high absorption only. lighting will increase internal energy GO and consequently locally raise on surface optical fiber. is changing stress distribution Full Text: PDF References O. Lupan et al., "Ultraviolet photoconductive based...
Abstract We investigate the influence of thermal annealing process on transport properties thin films made graphene oxide. Specially developed methodology allows us to demonstrate that oxide can be described as a kinetic with one activation energy, which equals 0.94 eV ± 0.12 eV. Moreover, we show electrical mechanism evolves temperature (reduction level) GO films. have noticed Variable Range Hopping model change from 3D, 2D Efros-Shklvoskii reduction level. Our findings contribute further...
The dipole-dipole interactions between excitons are of paramount importance in the nanoscale structures. When two placed together they can exchange energy manifest resonant Raman cross sections. We provide theoretical framework for such effects by combining coupled oscillator model and perturbation theory. apply this theory to a hybrid film comprising semiconducting quantum dots metallic carbon nanotubes. exciton has fixed energy, while nanotube resonances span across larger range from 1.7...
Carbon nanotubes (CNTs) exist in many atomic structures typically grow as mixtures of chiralities with a vast variety properties. Identical CNTs that are arranged into two-dimensional hexagonal lattices, their vibrational properties have been predicted to change additional low-frequency modes appearing the Raman spectrum. [1] Up now, experimental study collective vibrations has limited by lack pure homogeneous chirality bundles. We overcome this challenge employing self-coil mechanism very...
Event Abstract Back to Graphene oxide reduction as a result of cells activity Ilona Kalaszczynska1, 2, Mariusz Zdrojek3, Anna Wroblewska3, Jaroslaw Judek3, Slawomir Ruminski1, Magdalena Baran4, Ludwika Lipinska4 and Malgorzata Lewandowska-Szumiel1, 2 1 Medical University Warsaw, Department Histology Embryology, Poland Centre for Preclinical Research Technology, 3 Warsaw Faculty Physics, 4 Institute Electronic Materials (GO) reduced GO (rGO) are attractive materials with unique...
Among one of the demographic changes twentieth century has been the increasing survival people to old age. Once a rare event achieved by a very small proportion each generation, now reaching an age 75 and 85 is commonplace increasingly expected. The growth in of older population includes many who are healthy and independent, but also unprecedented number need assistance. No matter how or autonomous older appear be, fact remains that brings heightened risks variety diseases and psychosocial...
Graphene oxide (GO) thin films fabricated by the vacuum filtration method were deposited on bare tilted fiber Bragg grating for refractometry measurements. Two different layer thicknesses (100 nm and 200nm) used to prepare samples. The amplitude spectra of GO-coated TFBGs (GO-TFBGs) measured with linearly polarized light refractive index values LiCl solutions (1.3333-1.3342). We show that when is used, 200 GO-TFBGs achieve similar behavior as plasmonic gold-coated (Au-TFBGs). This latter...
The idea of this paper implies the possibility to exploit properties graphene oxide (GO) fiber Bragg grating (FBG) UVA radiation sensor design. assumes that a temperature change around can be induced by radiation. lighting will increase internal energy GO and consequently locally raise on surface optical with FBG changing wavelength Full Text: PDF ReferencesZ. N. Azwa, B. F. Yousif, A. C. Manalo, W. Karunasena, " A review degradability polymeric composites based natural fibres", Materials...