Sayed Khatiboleslam Sadrnezhaad

Congratulations

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.

Drug Delivery

Drug Delivery:

Targeted drug delivery from hard tissue implants coated with porous double-layer titanium-oxide nanotubes and polymer nanocords

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

Medical Engineering
No. 210 (2018) 46-49

Both hard-tissue replacement and drug-delivery can be achieved via anodic oxidation/electrospun coating in Titanium-implants. The order and size of the titanium oxide nanotubes which facilitate drug-delivery, are both controllable. For prevention of the local bacterial infection, Vancomycin loading is possible. To prevent explosive release, nano-polymeric cords can be placed on the oxidized titanium nanotubes.

Innovative Material

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.

Sprayed Coatings

NiCoCrAlY/CoNiCrAlY Coatings:

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.

NiTi Dental Implant

Recent Article:

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.