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Showing 13 to 24 of 131 entries
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The mechanism of thorium biosorption by Rhizopus arrhizus.

Biotechnology and bioengineering

Tsezos M, Volesky B.
PMID: 18546382
Biotechnol Bioeng. 1982 Apr;24(4):955-69. doi: 10.1002/bit.260240415.

Inactive cells of Rhizopus arrhizus have been documented to exhibit a high thorium biosorptive uptake (170 mg/g) from aqueous solutions. The mechanism of thorium sequestering by this biomass type was investigated following the same method as for the uranium...

Synthesis, Structural Characterization, and Cytotoxic Activity of Novel Paramagnetic Platinum Hematoporphyrin IX Complexes: Potent Antitumor Agents.

Metal-based drugs

Gencheva G, Tsekova D, Gochev G, Momekov G, Tyuliev G, Skumryev V, Karaivanova M, Bontchev PR.
PMID: 18309370
Met Based Drugs. 2007;2007:67376. doi: 10.1155/2007/67376.

Three novel stable Pt(III) complexes with distorted octahedral structure and (dz2)1 ground state have been obtained in the course of Pt(II)-hematoporphyrin IX ((7,12-bis(1-hydroxyethyl)-3,8,13,17-tetramethyl-21H-23H-porphyn-2,18-dipropionic acid), Hp) interaction in alkaline aqueous medium and aerobic conditions. A redox interaction also takes place...

Long-term survival with primary glioblastoma multiforme: a clinical study in bulgarian patients.

Case reports in oncology

Naydenov E, Tzekov C, Minkin K, Nachev S, Romansky K, Bussarsky V.
PMID: 21537375
Case Rep Oncol. 2011 Jan 04;4(1):1-11. doi: 10.1159/000323432.

Glioblastoma multiforme (GBM) is the most common and aggressive primary brain tumor with an extremely poor prognosis in spite of multimodal treatment approaches. The estimated median survival in cases with GBM is about 12-16 months. Those patients who survive...

Central trigeminocardiac reflex in pediatric neurosurgery: a case report and review of the literature.

Journal of medical case reports

Spiriev T, Tzekov C, Laleva L, Kostadinova C, Kondoff S, Sandu N, Schaller B.
PMID: 23110862
J Med Case Rep. 2012 Oct 30;6:372. doi: 10.1186/1752-1947-6-372.

INTRODUCTION: Trigeminocardiac reflex is a well-known phenomenon in neurosurgery, craniofacial surgery, ophthalmology and interventional neuroradiology. Even though the trigeminocardiac reflex has become an important factor in skull base surgery and neurosurgery, the central form of trigeminocardiac reflex has only...

Temperature-Dependent Stiffening and Inelastic Behavior of Newly Synthesized Fiber-Reinforced Super Flexible Silica Aerogels.

Materials (Basel, Switzerland)

Rege A, Voepel P, Okumus E, Hillgärtner M, Itskov M, Milow B.
PMID: 31489902
Materials (Basel). 2019 Sep 06;12(18). doi: 10.3390/ma12182878.

In recent years, flexible silica aerogels have gained significant attention, owing to their excellent thermal and acoustic insulation properties accompanied by mechanical flexibility. Fiber reinforcement of such aerogels results in a further enhancement of the strength and durability of...

Development and validation of clinical prediction models to risk stratify patients presenting with small pulmonary nodules: a research protocol.

Diagnostic and prognostic research

Oke JL, Pickup LC, Declerck J, Callister ME, Baldwin D, Gustafson J, Peschl H, Ather S, Tsakok M, Exell A, Gleeson F.
PMID: 31093569
Diagn Progn Res. 2018 Nov 29;2:22. doi: 10.1186/s41512-018-0044-3. eCollection 2018.

INTRODUCTION: Lung cancer is a common cancer, with over 1.3 million cases worldwide each year. Early diagnosis using computed tomography (CT) screening has been shown to reduce mortality but also detect non-malignant nodules that require follow-up scanning or alternative...

Visible Light-Driven Photocatalytic Activity of Magnetic Recoverable Ternary ZnFe2O4/rGO/g-C3N4 Nanocomposites.

Acta chimica Slovenica

Tsvetkov M, Encheva E, Pintar A, Milanova M.
PMID: 33533470
Acta Chim Slov. 2020 Dec;67(4):1082-1091.

ZnFe2O4/rGO/g-C3N4 ternary nanocomposite photocatalysts with different ZnFe2O4/g-C3N4 weight ratio (0.5, 0.75, 1) were prepared by a stepwise solvothermal method using ethylene glycol as the solvent. Physicochemical methods such as X-ray diffraction, UV-Vis diffuse reflectance spectroscopy and photoluminescence spectroscopy were...

Health-related quality of life in end-stage renal disease patients, using the Missoula-Vitas quality of life index: a multicenter study.

Medicine and pharmacy reports

Dimova R, Keskinova D, Tzekov V, Ginova-Noncheva G.
PMID: 31750438
Med Pharm Rep. 2019 Oct;92(4):374-381. doi: 10.15386/mpr-1320. Epub 2019 Oct 25.

BACKGROUND AND AIMS: Assessment of Health-related Quality of Life in chronic hemodialysis patients (CHD) is a predictive indicator of the outcome of the disease, including mortality and hospitalization. Regular surveys of the quality of life (QoL) in CHD patients...

Machine learning-based structure-property predictions in silica aerogels.

Soft matter

Abdusalamov R, Pandit P, Milow B, Itskov M, Rege A.
PMID: 34296238
Soft Matter. 2021 Aug 21;17(31):7350-7358. doi: 10.1039/d1sm00307k. Epub 2021 Jul 23.

The structural features in silica aerogels are known to be modelled effectively by the diffusion-limited cluster-cluster aggregation (DLCA) approach. In this paper, an artificial neural network (ANN) is developed for predicting the fractal properties of silica aerogels, given the...

Luminescent Complexes of Europium (III) with 2-(Phenylethynyl)-1,10-phenanthroline: The Role of the Counterions.

Molecules (Basel, Switzerland)

Elenkova D, Lyapchev R, Romanova J, Morgenstern B, Dimitrova Y, Dimov D, Tsvetkov M, Zaharieva J.
PMID: 34885868
Molecules. 2021 Nov 30;26(23). doi: 10.3390/molecules26237272.

New antenna ligand, 2-(phenylethynyl)-1,10-phenanthroline (PEP), and its luminescent Eu (III) complexes, Eu(PEP)

Comprehensive Imaging Characterization of Colorectal Liver Metastases.

Frontiers in oncology

Maclean D, Tsakok M, Gleeson F, Breen DJ, Goldin R, Primrose J, Harris A, Franklin J.
PMID: 34950575
Front Oncol. 2021 Dec 07;11:730854. doi: 10.3389/fonc.2021.730854. eCollection 2021.

Colorectal liver metastases (CRLM) have heterogenous histopathological and immunohistochemical phenotypes, which are associated with variable responses to treatment and outcomes. However, this information is usually only available after resection, and therefore of limited value in treatment planning. Improved techniques...

In vitro evaluation of a stable monomeric gold(II) complex with hematoporphyrin IX: cytotoxicity against tumor and kidney cells, cellular accumulation, and induction of apoptosis.

Bioinorganic chemistry and applications

Momekov G, Ferdinandov D, Konstantinov S, Arpadjan S, Tsekova D, Gencheva G, Bontchev PR, Karaivanova M.
PMID: 18497870
Bioinorg Chem Appl. 2008;367471. doi: 10.1155/2008/367471.

The antineoplastic potential of a stable monomeric Au(II) complex with hematoporphyrin IX (Hp), namely [Au(II)Hp(-2H).(H(2)O)(2)], was investigated in a panel of tumor cell lines. The complex exhibits strong cytotoxicity, whereby the leukaemia- and lymphoma-derived cell lines are more sensitive,...

Showing 13 to 24 of 131 entries