A5100638001- Porphyrin and Phthalocyanine Chemistry
- Nitric Oxide and Endothelin Effects
- Metal complexes synthesis and properties
- Magnetism in coordination complexes
- Hemoglobin structure and function
- Organometallic Complex Synthesis and Catalysis
- Metal-Catalyzed Oxygenation Mechanisms
- Pediatric health and respiratory diseases
- Immunodeficiency and Autoimmune Disorders
- Spinal Fractures and Fixation Techniques
- Electrochemical Analysis and Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Orthopedic Surgery and Rehabilitation
- Porphyrin Metabolism and Disorders
- Congenital Ear and Nasal Anomalies
- Traditional Chinese Medicine Studies
- Metalloenzymes and iron-sulfur proteins
- Diverse Approaches in Healthcare and Education Studies
- Pharmacy and Medical Practices
- Spine and Intervertebral Disc Pathology
- Foot and Ankle Surgery
- Electrochemical sensors and biosensors
- Food Quality and Safety Studies
- Sports injuries and prevention
- Cervical and Thoracic Myelopathy
National Police Hospital
2020-2021
Weatherford College
2021
ENT and Allergy
2020
University of Oklahoma
1999-2006
University at Buffalo, State University of New York
2006
Buffalo State University
2006
Texas A&M University
2005
A critical component of the biological activity NO and nitrite involves their coordination to iron center in heme proteins. Irradiation (330 < λ 500 nm) nitrosyl−nitro compound (TPP)Fe(NO)(NO2) (TPP = tetraphenylporphyrinato dianion) at 11 K results changes IR spectrum associated with both nitro-to-nitrito nitrosyl-to-isonitrosyl linkage isomerism. Only isomer is obtained 200 K, indicating that isonitrosyl less stable than nitrito isomer. DFT calculations reveal two ground-state...
The physical properties and structures of a series six complexes the type (NiN2S2)W(CO)4 have been used to establish electronic steric parameters for square planar NiN2S2 as bidentate, S-donor ligands. According ν(CO) stretching frequencies associated computed Cotton−Kraihanzel force constants tungsten carbonyl adducts, there is little difference in donor abilities five neutral metallodithiolate ligands series. dianionic Ni(ema)2- (ema = N,N'-ethylenebis(2-mercaptoacetamide)) complex...
We have examined the redox behavior of osmium and ruthenium compounds (OEP)M(NO)(OEt) (OEP)M(NO)(SEt) (OEP = octaethylporphyrinato dianion; M Os, Ru) by cyclic voltammetry infrared spectroelectrochemistry. The compound (OEP)Os(NO)(OEt) undergoes a single reversible oxidation process in dichloromethane. In contrast, thiolate (OEP)Os(NO)(SEt) net irreversible resulting formal loss SEt ligand. Extended Hückel calculations on crystal structures these two provide insight into nature their HOMOs....
Manganese(II) porphyrins are isoelectronic with iron(III) porphyrins, and previously reported work suggests that manganese nitrosyl good structural models for their kinetically unstable biologically relevant ferric-NO analogues. We have prepared a new set of six-coordinate the general form (por)Mn(NO)(L)(por = TTP, T(p-OCH3)PP; L piperidine, methanol, 1-methylimidazole) in moderate to high yields. The (por)Mn(NO)(pip) complexes were from reductive nitrosylation (por)MnCl compounds NO...
The (OEP)Os(NO)(SR) compounds (R = Me, Et, i-Pr, t-Bu) have been prepared in 33-48% isolated yields by the formal trans-addition of precursor alkyl thionitrites (RSNO) across metal center (OEP)Os(CO). nitrosyl thiolate characterized IR, 1 H NMR, and UV-vis spectroscopy, FAB mass spectrometry. Their IR spectra display bands 1751-1755 cm -1 (KBr) range, which is indicative terminal N-bound NO ligands this class compounds. thiolate-thiol (OEP)Os(NO)(SCH 2 CH SH) complex has 70% yield from...
Several new ruthenium porphyrins containing nitrosoarene ligands have been synthesized and characterized by IR 1H NMR spectroscopy, single-crystal X-ray crystallography. Bis-nitrosoarene complexes of the form (por)Ru(ArNO)2 (Ar = aryl group; por TPP, TTP; TPP tetraphenylporphyrinato dianion, TTP tetratolylporphyrinato dianion) were prepared in good yields from reaction nitrosoarenes with (por)Ru(CO). The spectra (as KBr pellets) display bands 1346–1350 cm−1 region due to νNO. Reactions...
Monometallic nitrosyl thiolate-thiol complexes of the form (por)Ru(NO)(S(CH(2))(n)()SH) (por = TPP, n 2; TTP, 2-4) have been prepared in 49-61% isolated yields from reaction (por)Ru(NO)(O-i-C(5)H(11)) alkoxide precursors with HS(CH(2))(n)()SH. The (OEP)Ru(NO)(SCH(2)CH(2)SH) complex was 71% yield via addition HSCH(2)CH(2)SNO to (OEP)Ru(CO). These fully characterized by elemental analyses, infrared and (1)H NMR spectroscopy, mass spectrometry. molecular structure has determined single-crystal...
To develop Quality by Design based drug, we compared and evaluated the self-made open source DoE R program Minitab ?? statistic program, which are used in of Experiments for reasonable experiments data reliability. An real-time accumulation was developed to enable a design experiment. Then, independent variables dependent wet granulation process telmisartan potassium tablets were performed experimental using two programs. After statistical programs executed, regression equations, analysis...
Carpal tunnel syndrome (CTS) is a common neuropathy. Although CTS progression known to be associated with thenar muscle (TM) atrophy, the diagnostic value of TM atrophy for has not been established. In this research, cross-sectional area (TMCSA) was evaluated analyze relationship between TMCSA and CTS. We assumed that major parameter in CTS.Both thickness (TMT) samples were acquired from 18 patients, control subjects who underwent wrist magnetic resonance imaging no evidence T2-weighted...
In the title compound, [Fe2(C36H36N4O4)2O], Fe—O—Fe bond angle is 170.5 (2)° and two porphyrin rings are twisted by 27.2 (4)° with respect to each other.
One of major causes cervical central stenosis (CCS) is thickened change ligament flavum (CLF). The association a morphological parameter called thickness (CLFT) with CCS has not been reported yet. Thus, the purpose this research was to investigate relationship between and CFJT.Data were obtained from 88 patients CCS. A total 87 normal controls also underwent spine magnetic resonance imaging (CSMRI). All subjects axial T2-weighted CSMRI. Using our picture archiving communications system, at...
An injured calcaneofibular ligament (CFL) is a major cause of ankle instability (AI). Previous research has demonstrated that the thickness (CFLT) correlated with higher-grade sprains and instability. However, inflammatory hypertrophy distinct from thickness; accordingly, we considered cross-sectional area (CFLCSA) as potential morphological parameter to analyze CFL. We hypothesized CFLCSA was key morphologic in AI diagnosis.We gathered CFL data 26 patients 25 control subjects who had...