The age of porous materials started in 1992 along with the first synthesis of the MCM-41. During these ~ 30 years many synthesis routes were proposed and consequently, some characteristic mesoporous materials were developed and tested in many applications, including tissue engineering and drug delivery. This paper is highlighting the possibility to use mesoporous silica […]

Since February 2020 SARS-CoV-2 infected US and based on the statistics, the infection rates developed like a tsunami, affecting over 3% of US population, representing 20% of the world cases. The US CDC protection instructions were flimsy, incomplete and badly explained while virus transmission explanations were an affront to common sense that motivated us to […]

This paper presents a conceptual Metal-Oxide-Semiconductor structure, but applied to biomimetic functions. The proposed structure is an alternative solution to the Nothing On Insulator (NOI) device. By a rotation of 900 the vertical NOI structure becomes a planar NOI structure, based on a beneficial oxide tunneling current through sub-10nm oxide. In this paper, this planar […]

Structure and properties of commercial Chitosan-50 powder ((C6H11NO4)n, M=500.000, Wako Pure Chemical Industries Ltd.) were investigated. XRD, IR spectroscopy, DTGA and SEM were used. It was shown that chitosan powder is characterized only by chitosan phase and flaky flat irregular particles and agglomerates sized from 5 nm to 200 μm. Decomposition of chitosan is complete at 580 °C. Specific […]

Glassy carbon electrode (GCE) has been modified by mechanical entrapment method with Polyaniline Nanoparticles / Graphene for developing a new nanosensor (PANINPs/GR/GCE). It was characterized by electrochemical analysis to evaluate it as a nano-sensor for analytical electrochemistry. A standard solution of 0.06 mM K4[Fe(CN)6] in 0.1M KCl was used as an electrolyte, in order to […]

Breast is a rare location for Mycobacterium tuberculosis (MbT) infection. The paper analyses the first registered case with MBT location in a young Romanian women: a chronic primary TB breast abscess, non-pregnancy related, with periods of apparent healing and repeated areolar fistula formation. Incidence, risk factors, hypothetic mechanisms of primary / secondary breast MbT infection, […]

Some places are very sensitive to pandemic mass transmission, where a contagious person can easily infect over 50 persons in only 2 minutes of exposure. Facing this pandemic, infrastructure is prone to cascading if appropriate protection measures are not implemented in advance. The novel COVID-19 has some features that put it in the class of […]

In the present work the effect of doping 1% nano-sized diamond particles on the structure and properties of biocomposites (sintered at 500 and 780 ºC on air) based on biogenic hydroxyapatite and sodium silicate glass were investigated. Volume and mass shrinkages of composites after sintering, their phase composition, microstructure, porosity, mechanical and bioactivity properties were studied. […]

COVID-19 is a virus with its dimensions of about 100 nm when is in its spherical shape, had proven remarkable features as a nano-bot with displacement capabilities performed by spikes, a protein shield, and inside a genetic code, programmed to hack the cells and uses to reproduce itself. Duet to its shield and affinity for […]

Orange waste, a by-product of orange juice factories, has considerable amounts of phenolic and antioxidant compounds. In this research, the combination of Electrohydrodynamic (EHD) and enzymatic processes was examined to extract phenolic compounds from orange waste powder (OWP). To achieve this goal, the influence of pH (at 4, 4.5, 4.8, 5, 5.5 and 6 levels) […]