Sayed Khatiboleslam Sadrnezhaad

Felicitaciones

Congratulations:

Day of first revelation

The great event happened when Mohammad^(PBUH) received a Quranic verse transferred by the angel Gabriel to him in the cave named Hira. He then proclaimed being the messenger of God with the command to advise the people towards prosperity and salvation.

Read: in the name of that who created. Created the man from a clot. Read; and thy Lord is the most bounteous. That who taught using the pen. That who taught the man what the man knew not.

Nuevo material de cátodo

Entrega de drogas:

Suministro dirigido de medicamentos desde implantes de tejido duro recubiertos con nanotubos porosos de óxido de titanio de doble capa y nanocordones de polímeros

S.K. Sadrnezhaad, A. Eslami Saed, Z. Riyahi

Medical Engineering
No. 210 (2018) 46-49

Tanto el reemplazo de tejido duro como la administración de fármacos se pueden lograr mediante oxidación anódica/ recubrimiento electrohilado en implantes de titanio. El orden y el tamaño de los nanotubos de óxido de titanio que facilitan la administración de fármacos son controlables. Para la prevención de la infección bacteriana local, es posible la carga de vancomicina. Para evitar la liberación de explosivos, se pueden colocar cordones nano-poliméricos en los nanotubos de titanio oxidado.

Material innovador

g-C3N4/SnO2 Nanocomposite:

Novel microwave-assisted synthesis of porous g-C3N4/SnO2 nanocomposite for solar water-splitting

A. Seza, F. Soleimani, N. Naseri, M. Soltaninejad, S.M. Montazeri, S.K. Sadrnezhaad, M.R. Mohammadi, H. Asgari Moghadam, M. Forouzandeh, M.H. Amin

Applied Surface Science
440 (2018) 153–161

In-situ synthesis of porous g-C₃N₄/SnO₂ catalyst by fast microwave-assisted method was done. Sn derivatives in the condensation step triggered simple pyrolysis of urea to C₃N₄. The visible-light catalyst had high potential for clean energy production.

Recubrimiento pulverizado

NiCoCrAlY/CoNiCrAlY Revestimientos:

Cyclic oxidation characteristics of HVOF thermal-sprayed NiCoCrAlY and CoNiCrAlY coatings at 1273 K

A. Feizabadi, M. Salehi Doolabi, S.K. Sadrnezhaad, M. Rezaei

Journal of Alloys and Compounds
746 (2018) 509-519

NiCoCrAlY coating is more resistant to 1000°C air-oxidation than CoNiCrAlY. The main protecting phase on NiCoCrAlY is α-Alumina. Oxidation of CoNiCrAlY initially is sub-parabolic; while finally parabolic.

Implante Dental Nitinol

Artículo reciente:

Porous shape memory dental implant by reactive sintering of TiH₂–Ni-Urea mixture

S. Akbarinia, S.K. Sadrnezhaad, S.A.Hosseini

Materials Science and Engineering: C
107 (2020), 110213

We produced bifurcated bone-like shape memory implant with desirable tooth-root fixation capability by compact-sintering of TiH2-Ni-urea mixture. The primary constituents of the porous product were Ni and Ti. We could adjust the pores’ shape, size, and interconnectivity for favorite bone ingrowth by using urea as a space holder. Bending tests showed 0.9 mm recoverable deflection for specimens which assisted immediate self-fixation of the implant into the jaw bone cavity.