scholarly journals Thermal analysis, X-ray powder diffraction and electron microscopy data related with the production of 1:1 Caffeine:Glutaric Acid cocrystals

Data in Brief ◽  
2016 ◽  
Vol 8 ◽  
pp. 247-250 ◽  
Author(s):  
Íris Duarte ◽  
Rita Andrade ◽  
João F. Pinto ◽  
Márcio Temtem
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Powder Diffraction ◽  
X Ray ◽  
Electron Microscopy Data ◽  
Microscopy Data

Particularities of Structure and Stability of Cationic-Ordered Layered Titanates

2011 ◽  
Vol 170 ◽  
pp. 190-193 ◽  
Author(s):  
Irina Zvereva ◽  
Anna Sankovich ◽  
Alexander Missyul
Keyword(s):  
Electron Microscopy ◽  
Thermal Stability ◽  
Thermal Analysis ◽  
Scanning Electron Microscopy ◽  
Thermal Annealing ◽  
Powder Diffraction ◽  
X Ray ◽  
Stable Temperature ◽  
Thermal Stability Of ◽  
Scanning Electron

Thermal stability of the layered titanates NdMTiO4 and Nd2M2Ti3O10 (M=Na, K) featured with 1 or 3 perovskite layers has been investigated in thermal annealing at 780 – 1400°С. Their structure variations are monitored using thermal analysis (TGA, DTA), X-ray powder diffraction, and scanning electron microscopy. Judging from the decomposition sequence and the stable temperature range for individual phase, the structure of Nd2M2Ti3O10 with three perovskite layers is identified most stable among these layer titanates. As a whole, the K-containing phases are less stable than the Na-containing ones.

New Synthetic Pathways to Mesostructured Thiogermanates

1998 ◽  
Vol 547 ◽  
Author(s):  
N. Oberender ◽  
M. Fröba
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Transmission Electron Microscopy ◽  
Absorption Spectroscopy ◽  
Powder Diffraction ◽  
Metal Chalcogenides ◽  
Templated Synthesis ◽  
X Ray ◽  
Transmission Electron ◽  
X Ray Absorption

AbstractThe synthesis and characterisation of several mesostructured thiogermanates are shown. In particular the first supramolecular templated synthesis of mesostructured binary metal chalcogenides in a microwave is presented. The obtained products are characterised by x-ray powder diffraction, transmission electron microscopy, thermal analysis and x-ray absorption spectroscopy.

scholarly journals New wwPDB validation pipelines for X-ray, NMR and 3DEM structures

2014 ◽  
Vol 70 (a1) ◽  
pp. C1478-C1478
Author(s):  
Swanand Gore ◽  
Pieter Hendrickx ◽  
Eduardo Sanz-Garcia ◽  
Sameer Velankar ◽  
Gerard Kleywegt
Keyword(s):  
Electron Microscopy ◽  
Protein Data Bank ◽  
Data Bank ◽  
X Ray ◽  
Task Forces ◽  
Annotation System ◽  
Electron Microscopy Data ◽  
Microscopy Data ◽  
Machine Readable

The Protein Data Bank (PDB) is the single global archive of 3D biomacromolecular structure data. The archive is managed by the Worldwide Protein Data Bank (wwPDB; wwpdb.org) organisation through its partners, the Research Collaboratory for Structural Bioinformatics (RCSB PDB), the Protein Data Bank Japan (PDBj), the Protein Data Bank in Europe and the Biological Magnetic Resonance Bank (BMRB). Analogously, the Electron Microscopy Data Bank (EMDB) is managed by the EMDataBank (emdatabank.org) organisation. A few years ago, realising the needs and opportunities to assess the quality of biomacromolecular structures deposited in the PDB, the wwPDB and EMDataBank partners established Validation Task Forces (VTFs) to advice them on up-to-date and community-agreed methods and standards to validate X-ray, NMR and 3DEM structures and data. All three VTFs have now published their recommendations (1, 2, 3) and these are getting implemented as validation-software pipelines . The pipelines are integrated in the new joint wwPDB deposition and annotation system (http://deposit.wwpdb.org/deposition/). In addition, stand-alone servers are provided to allow practising structural biologists to validate models prior to publication and deposition (http://wwpdb.org/validation-servers.html). The validation pipelines and the output they produce (human-readable PDF reports and machine-readable XML files) will be described.

scholarly journals X-ray diffraction and electron microscopy data for amyloid formation of Aβ40 and Aβ42

Data in Brief ◽  
2016 ◽  
Vol 8 ◽  
pp. 108-113 ◽  
Author(s):  
Olga M. Selivanova ◽  
Elizaveta I. Grigorashvili ◽  
Mariya Yu. Suvorina ◽  
Ulyana F. Dzhus ◽  
Alexey D. Nikulin ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Amyloid Formation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Electron Microscopy Data ◽  
Microscopy Data

PENINGKATAN LAJU DISOLUSI ACYCLOVIR DENGAN METODE SISTEM DISPERSI PADAT MENGGUNAKAN POLOXAMER 188

2016 ◽  
Vol 5 (1) ◽  
pp. 6
Author(s):  
Budi Setiawan ◽  
Erizal Zaini ◽  
Salman Umar
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Scanning Electron Microscopy ◽  
Fourier Transform ◽  
Differential Thermal Analysis ◽  
Fourier Transform Infrared ◽  
X Ray Diffraction ◽  
Poloxamer 188 ◽  
X Ray ◽  
Scanning Electron

Sebuah penelitian tentang sistem dispersi padat dari asiklovir dengan poloxamer 188 telah dilakukan formulasi dengan pencampuran secara fisika dengan rasio 1 : 1, 1 : 3, 1 : 5 dan dispersi padat 1 : 1, 1 : 3, 1 : 5 dan penggilingan 1:1 sebagai pembanding. Dispersi padat dibuat menggunakan metode pencairan (fusi), yang digabung dengan poloxamer 188 pada hotplate kemudian asiklovir dimasukkan ke dalam hasil poloxamer 188 lalu di kocok hingga membentuk masa homogen. Semua formula yang terbentuk termasuk asiklovir poloxamer 188 murni dianalisis karakterisasinya dengan Differential Thermal Analysis (DTA), X-ray Diffraction, Scanning Electron Microscopy (SEM), dan Fourier Transform Infrared (FTIR), kemudian pengambilan dilakukan  (penentuan kadar) mengunakan spektrofotometer UV pada panjang gelombang 257,08 nm dan uji laju disolusi dengan aquadest bebas CO2 menggunakan metode dayung. Hasil pengambilan  (penentuan kadar) menunjukkan bahwa semua formula memenuhi persyaratan farmakope Amerika edisi 30 dan farmakope Indonesia edisi 4 yaitu 95-110%. Sedangkan hasil uji laju disolusi untuk campuran fisik 1: 1, dan dispersi padat 1: 1, dan penggilingan 1: 1 menunjukkan peningkatan yang nyata dibandingkan asiklovir murni. Hal ini juga dapat dilihat dari hasil perhitungan statistik  menggunakan analisis varian satu arah  SPSS 17.

Interaction of ditertiary phosphines with phenyl- and 1-naphthyldithiocarbamatonickel(II)

1985 ◽  
Vol 50 (6) ◽  
pp. 1383-1390
Author(s):  
Aref A. M. Aly ◽  
Ahmed A. Mohamed ◽  
Mahmoud A. Mousa ◽  
Mohamed El-Shabasy
Keyword(s):  
Thermal Analysis ◽  
Powder Diffraction ◽  
Spin Structure ◽  
Magnetic Measurements ◽  
Mixed Ligand ◽  
Mixed Ligand Complexes ◽  
X Ray ◽  
Square Planar

The synthesis of the following mixed ligand complexes is reported: [Ni(phdtc)2(dpm)2], [Ni(phdtc)2(dpe)2], [Ni(phdtc)2(dpp)3], [Ni(1-naphdtc)2(dpm)2], [Ni(1-naphdtc)2], and [Ni(1-naphdtc)2(dpp)2], where phdtc = PhNHCSS-, 1-naphdtc = 1-NaPhNHCSS-, dpm = Ph2PCH2PPh2, dpe = Ph2P(CH2)2PPh2, and dpp = Ph2P(CH2)3PPh2. The complexes are characterised by microanalysis, IR and UV-Vis spectra, magnetic measurements, conductivity, X-ray powder diffraction, and thermal analysis. All the mixed ligand complexes are diamagnetic, and thus a square-planar or square-pyramidal (low-spin) structure was proposed for the present complexes.

scholarly journals Label-free fluorescence predictions from large-scale correlative light and electron microscopy data

2021 ◽  
Vol 27 (S1) ◽  
pp. 94-95
Author(s):  
Ryan Lane ◽  
Luuk Balkenende ◽  
Simon van Staalduine ◽  
Anouk Wolters ◽  
Ben Giepmans ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Large Scale ◽  
Light And Electron Microscopy ◽  
Label Free ◽  
Electron Microscopy Data ◽  
Microscopy Data
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