by Evelyne El Masri  and Tat-Hean Gan

Received: 28 May 2020;  Published: 27 August 2020;  doi: 10.21926/rpm.2003020

Carbon fibre reinforced polymer (CFRP) systems as sheets or plates are commonly used to strengthen and retrofit damaged reinforced concrete beams. In general, the bond between the FRP element and concrete defines the effectiveness of the externally bonded FRP materials. In most cases, the interface bonding behaviour is usually tested via static loading conditions. In this paper, the bonding is verified under dynamic conditions. Wave propagation is modelled in delaminated CFRP strengthened reinforced concrete beam. [...]

by Kiril Fedorov  , Sonia Sheikh  , Alex Romaschin  and Michael Thompson

Received: 03 May 2020;  Published: 18 August 2020;  doi: 10.21926/rpm.2003019

During a variety of medical procedures such as renal dialysis, bypass surgery, and lung transplantation patient blood is exposed to the surface of a number of polymeric materials such as polycarbonate (PC), poly (vinyl chloride) (PVC) and polysulfone (PS) for a period up to several days. Such exposure may result in undesirable protein-material interactions that can potentially trigger deleterious biological processes including thrombosis, which may be responsible for other complications such as cognitive disability [...]

by Emma G. Norris  , Diane Dalecki  and Denise C. Hocking

Received: 22 March 2020;  Published: 21 July 2020;  doi: 10.21926/rpm.2003018

Ultrasound is emerging as a promising tool for both characterizing and fabricating engineered biomaterials. Ultrasound-based technologies offer a diverse toolbox with outstanding capacity for optimization and customization within a variety of therapeutic contexts, including improved extracellular matrix-based materials for regenerative medicine applications. Non-invasive ultrasound fabrication tools include the use of thermal and mechanical effects of acoustic waves to modify the structure and function of extracell [...]

by Razieh Sadraei

Received: 25 April 2020;  Published: 01 July 2020;  doi: 10.21926/rpm.2003017

A literature survey shows that the valorization of urban and/or agricultural biowastes into chemicals has caught the attention of experts and is gradually becoming quite an important issue. This review presents the application of the Bio-Based Substances (BBS) isolated from the compost of bio-wastes from urban gardening and park trimming residues. The non-cost BBS has been well studied in the literature. BBS are biological macromolecules with a complex lignin-derived structure containing several functional groups, [...]

by Vardan Apinyan  and Mane Sahakyan

Received: 17 March 2020;  Published: 01 July 2020;  doi: 10.21926/rpm.2003016

The present report provides a phenomenological theory for monolayer graphene, in which two worlds, the quantum and the classical, meet and complete each other in the most natural manner. In the present report, electron mass-vortex representation is introduced, and the surface tension excitation states in the monolayer graphene are defined. The band-mass of the electrons at the Dirac’s point was calculated through the mathematical introduction of a mass-dispersion relation. As a consequence, the Dirac’s energy dispe [...]

by C. Aris Chatzidimitriou-Dreismann

Received: 31 March 2020;  Published: 23 June 2020;  doi: 10.21926/rpm.2002015

Current developments of non-relativistic quantum mechanics appear to predict, and reveal, counter-intuitive dynamical effects of hydrogen in nanostructured materials that are of considerable importance for basic research as well as for technological applications. In this review, the experimental focus is on HO and H molecules in carbon nanotubes and other nanocavities that have been experimentally investigated using the well-established technique of incoherent inelastic neutron scattering (INS). For instance, the m [...]

by Yi-Chia Liao  , Chun-Hway Hsueh  and Wen-Shin Lee

Received: 16 May 2020;  Published: 15 June 2020;  doi: 10.21926/rpm.2002014

Inspired by the application of metallic glass sheet as face material for improving the performance of golf clubs, the present work was aimed to explore the application of thin-film metallic glass (TFMG) coatings for enhancing the performance of strings. In order to achieve this aim, badminton strings were coated with TFMG coatings of different thicknesses. The compositions of these TFMG coatings were analyzed using an electron probe micro-analyzer. The amorphous structure of the film was verified using X-ray diffra [...]

by Heizel Rosado  and Maribella Domenech

Received: 15 March 2020;  Published: 14 May 2020;  doi: 10.21926/rpm.2002013

Cells can respond to different topographical cues in their natural microenvironment. Hence, scientists have employed microfabrication techniques and materials to generate culture substrates containing topographies for cell-based assays. However, one of the limitations of custom topographical platforms is the lack of adoption by the broad research community. These techniques and materials have high costs, require high technical expertise, and can leach components that may introduce artifacts. In this study, we devel [...]

by Ben Milborne  , Abul Arafat  , Rob Layfield  , Alex Thompson  and Ifty Ahmed

Received: 18 March 2020;  Published: 12 May 2020;  doi: 10.21926/rpm.2002012

Radiotherapy has become one of the most prominent and effective modalities for cancer treatment and care. Ionising radiation, delivered either from external or internal sources, can be targeted to cancerous cells causing damage to DNA that can induce apoptosis. External beam radiotherapy delivers either photon radiation (x-rays or gamma rays) or particle radiation (neutrons or protons) in a targeted manner to specific tumour locations. Internal radiotherapy involves placing radioactive sources within the body to de [...]

by Francesco Calvani  , Emanuele Bartoletti  , Giancarlo Folchitto  , Stefania Santini  , Michele Fontevecchia  and Alessandra Alhadeff

Received: 06 April 2020;  Published: 11 May 2020;  doi: 10.21926/rpm.2002011

Skin regeneration is a multidisciplinary topic that involves plastic surgery, aesthetics, and dermatology. In the last few years, several molecules have been used to prevent or delay the skin aging process. Recently, promising investigations on novel β-1,3/1,6-glucan-based treatments, associated with sodium hyaluronate, have demonstrated the induction of a naïve biological stimulus in soft tissues. Serum Revitalizing Face (Lot 00118a0051 of 11/19/2018 approved by the Italian Ministry of Health as a Medical Device-C [...]