saeed baghery was born in amol/mazandaran (iran) in 1985. he completed his b.sc. in pure chemistry in 2009 from islamic azad university of amol, mazandaran, iran. he was graduated from m.sc. degree under the supervision of dr. seyed mohammad vahdat in organic chemistry from islamic azad university of amol, mazandaran, iran. he is currently organic chemistry ph.d student under the supervision of...

Electrophoresis is widely used as a separative technique, particularly in protein chemistry. In some respects gelatinous media have an advantage over others as support media for electrophoresis, perhaps most obviously when a gel matrix of molecular dimensions is employed, allowing the simultaneous use of two properties for separation of the particles of interest-size and surface charge density....

INTRODUCTION Serum blood collection tubes with separator gel are widely used by many laboratories for chemistry analyses. We describe a case of a primary blood collection tube filled with blood sample and a floating separator gel. MATERIALS AND METHODS The blood sample was collected from a 51 years old female in intensive care unit with the diagnosis of pneumonia into a BD Vacutainer SST tube...

AIM Tetracycline-stained tooth structure is difficult to bleach using nightguard tray methods. The possible benefits of in-office light-accelerated bleaching systems based on the photo-Fenton reaction are of interest as possible adjunctive treatments. This study was a proof of concept for possible benefits of this approach, using dentine slabs from human tooth roots stained in a reproducible ma...

gelled propellants are improved propellants that can be considered as the final extension of liquid propellants. high specific impulse, good density and safety better than that of both solid and liquid propellants are advantages of the gel propellants. they are made by addition a suitable gellant to liquid propellants. in this research, nano al particles have been used in udmh gel fuel. the gel...

Matrix Assisted Laser Desorption (MALDI) is a soft ionization technique used in modern day chemistry to analyze polymers with high precision and speed. This does not require any polymer standard for mass calibration (as the case of gel – permeation chromatography GPC). Protocols only minimum amounts solvent consumables. Measurements masses individual oligomers facilitate determination monomers ...

toktam faal rastegar was born in quchan (iran). she completed her b.sc. in chemistry in 2005 from ferdowsi university, mashhad. she was graduated from m.sc. degree in organic chemistry from bu-ali sina university (2008), hamadan, iran. she is currently organic chemistry ph.d student under the supervision of prof. a. khazaei and prof. m.a. zolfigol in department of chemistry at bu-ali sina unive...

A novel dynamic covalent gel strategy is reported to immobilize an asymmetric catalyst within the channels of a microfluidic flow reactor. A layer of a catalytically active Mn-salen dynamic covalent imine gel matrix was coated onto a functionalized capillary. Mn-salen active moiety was incorporated into dynamic covalent imine gel matrix via the reaction of a chiral Mn-salen dialdehyde unit with...

Two different series of H2 sensors were prepared. The first series was based on n-type semiconducting SnO2 thin films, prepared by the sol–gel method. The effect of Au and Pt nanoparticles in SnO2 was investigated for gas sensor applications. The second series was based on p-type NiO thin films, which were grown by pulsed laser deposition on microscope glass or (100) Si substrates. The effect o...

In exogenous prophylaxis, fluoride is applied directly to the tooth surface through various gels, varnishes, foams, and toothpaste. According global burden of disease study conducted in 2017, more than 530 million children worldwide suffer from dental caries their primary dentition. There are few developments selection non-invasive methods application mineralizing varnishes. The researchers inv...