scholarly journals COLLECTION AND in situ MORPHOLOGICAL CHARACTERIZATION OF PEPPERS (Capsicum spp.) CULTIVATED IN TABASCO, MEXICO

2014 ◽  
Vol XX (3) ◽  
pp. 269-282
Author(s):  
Carlos A. Narez-Jiménez ◽  
◽  
Efraín de la Cruz-Lázaro ◽  
Armando Gómez-Vázquez ◽  
César Márquez-Quiroz ◽  
...  
Keyword(s):  
Morphological Characterization ◽  
Capsicum Spp

Morphological Characterization of Chitosan in the Hydroxyapatite/Chitosan Nanocomposites

2009 ◽  
Vol 79-82 ◽  
pp. 1675-1678
Author(s):  
Xiao Ying Lu ◽  
Xiu Hong Wang ◽  
Jian Xin Wang ◽  
Shu Xin Qu ◽  
Jie Weng
Keyword(s):  
Ph Value ◽  
Biomedical Application ◽  
Morphological Characterization ◽  
Layer By Layer ◽  
Oriented Growth ◽  
Hydrothermal Temperature ◽  
Morphological Differences ◽  
Hydrothermal Precipitation

The morphological differences of chitosan (CS) in the hydroxyapatite (HA)/CS nanocomposites were investigated in detailed, which were prepared via in situ hydrothermal precipitation. The results show that the obtained nanocomposites have excellent crystallinity and the crystal has excellent ordered structure, which is important to the composites performances in the biomedical application. Moreover, the CS arrangement and crystallinity in the composites greatly depend on the hydrothermal temperature and the pH value of precipitating agent. The temperature ranging from 373 to 413K and pH value of precipitating agent ranging from 12 to 14 were favorable to the crystallization and oriented growth of CS molecules in the composites. The CS crystals with better arrangement are assembled in the order of layer-by-layer in these composites.

Thermal and Morphological Characterization of Nanocomposites Prepared by in-Situ Polymerization of High-Density Polyethylene on Carbon Nanotubes

2007 ◽  
Vol 40 (17) ◽  
pp. 6268-6276 ◽  
Author(s):  
M. Trujillo ◽  
M. L. Arnal ◽  
A. J. Müller ◽  
E. Laredo ◽  
St. Bredeau ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Density Polyethylene ◽  
In Situ Polymerization ◽  
Morphological Characterization ◽  
High Density

Chemical, Electrochemical and Morphological Characterization of Poly-{trans-[RuCl2(vpy)4]} Films Deposited on Nd-Fe-B Magnets and on Inert Materials

2006 ◽  
Vol 530-531 ◽  
pp. 72-76 ◽  
Author(s):  
M.C.E. Bandeira ◽  
J.A. Crayston ◽  
César V. Franco
Keyword(s):  
Morphological Characterization ◽  
Film Structure ◽  
Film Stability ◽  
Force Microscopy ◽  
Ru Complex ◽  
Atomic Force ◽  
Surface Redox ◽  
Corrosion Protection Coating

The characterization of poly-{trans-[RuCl2(vpy)4]}films, deposited on Nd-Fe-B magnets and on Pt, Au and Glassy Carbon (GC) electrodes, produced in the present work were carried out by several in situ and extra situ techniques, aiming by the understanding of film structure improve its use as corrosion protection coating and/or electrocatalyst. Cyclic Voltammetry (CV) was used to estimate the surface coverage, film stability and the surface redox potential of films produced at different conditions. By Chronocoulometry films diffusion coefficient (Dct) were evaluated. Film morphology was studied by Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM). Chemical composition analyses were carried out by Energy Dispersive Spectroscopy (EDS), X-ray Photonelectron Spectroscopy (XPS) and Raman Spectroscopy. The results indicated that the film structure is similar to the Ru complex in solution. Films Dct is limited by the electron transfer rate between Ru metallic centers. Films on Nd-Fe-B were composed by Ru3+ whereas on Pt by Ru2+.

scholarly journals In situ-collection and Morphological Characterization of Chilli (Capsicum annuum L.) Genotypes

2019 ◽  
Vol 8 (11) ◽  
pp. 1319-1330
Author(s):  
Chakradhar Patra ◽  
Saroj Kumar Mohanty ◽  
Laxmi Priya Sahoo ◽  
Alok Nandi ◽  
Ishwar Chandra Mohanty ◽  
...  
Keyword(s):  
Capsicum Annuum ◽  
Morphological Characterization ◽  
Capsicum Annuum L ◽  
In Situ Collection

scholarly journals Transcellular transport of polymeric IgA in the rat hepatocyte: biochemical and morphological characterization of the transport pathway.

1985 ◽  
Vol 101 (6) ◽  
pp. 2113-2123 ◽  
Author(s):  
C A Hoppe ◽  
T P Connolly ◽  
A L Hubbard
Keyword(s):  
Morphological Characterization ◽  
Intact Protein ◽  
Transport Pathway ◽  
Transcellular Transport ◽  
Peroxidase Cytochemistry ◽  
Parenchymal Cells ◽  
Intracellular Pathway ◽  
Mouse Myeloma

Polymeric IgA (pIgA) is transported by liver parenchymal cells (hepatocytes) from blood to bile via a receptor-mediated process. We have studied the intracellular pathway taken by a TEPC15 mouse myeloma pIgA. When from 1 microgram to 1 mg 125I-pIgA was injected into the saphenous vein of a rat, 36% was transported as intact protein into the bile over a 3-h period. The concentration of transported 125I-pIgA was maximal in bile 30-60 min after injection, and approximately 80% of the total 125I-pIgA ultimately transported had been secreted into bile by 90 min. A horseradish peroxidase-pIgA conjugate (125I-pIgA-HRP) was transported to a similar extent and with kinetics similar to that of unconjugated 125I-pIgA and was therefore used to visualize the transport pathway. Peroxidase cytochemistry of livers fixed in situ 2.5 to 10 min after 125I-pIgA-HRP injection demonstrated a progressive redistribution of labeled structures from the sinusoidal area to intermediate and bile canalicular regions of the hepatocyte cytoplasm. Although conjugate-containing structures began accumulating in the bile canalicular region at these early times, no conjugate was present in bile until 20 min. From 7.5 to 45 min after injection approximately 30% of the labeled structures were in regions that contained Golgi complexes and lysosomes; however, we found no evidence that either organelle contained 125I-pIgA-HRP. At least 85% of all positive structures in the hepatocyte were vesicles of 110-160-nm median diameters, with the remaining structures accounted for by tubules and multivesicular bodies. Vesicles in the bile canalicular region tended to be larger than those in the sinusoidal region. Serial sectioning showed that the 125I-pIgA-HRP-containing structures were relatively simple (predominantly vesicular) and that extensive interconnections did not exist between structures in the sinusoidal and bile canalicular regions.

scholarly journals Protein Adsorption at Nanorough Titanium Oxide Surfaces: The Importance of Surface Statistical Parameters beyond Surface Roughness

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 357
Author(s):  
Yu Yang ◽  
Steffen Knust ◽  
Sabrina Schwiderek ◽  
Qin Qin ◽  
Qing Yun ◽  
...  
Keyword(s):  
Protein Adsorption ◽  
Titanium Oxide ◽  
Morphological Characterization ◽  
Root Mean Square Roughness ◽  
Oxide Surfaces ◽  
Statistical Parameters ◽  
Protein Film ◽  
Surface Morphologies

The nanoscale surface topography of biomaterials can have strong effects on protein adsorption. While there are numerous surface statistical parameters for the characterization of nanorough surfaces, none of them alone provides a complete description of surface morphology. Herein, a selection of nanorough titanium oxide surfaces has been fabricated with root-mean-square roughness (Sq) values below 2.7 nm but very different surface morphologies. The adsorption of the proteins myoglobin (MGB), bovine serum albumin (BSA), and thyroglobulin (TGL) at these surfaces was investigated in situ by ellipsometry to assess the importance of six of the most common surface statistical parameters. For BSA adsorption, both protein film thickness and time constant of adsorption were found to scale linearly with Sq s. For TGL, however, the same adsorption characteristics depend linearly on the surface skewness (Ssk), which we attribute to the rather extreme size of this protein. Finally, a mixed behavior is observed for MGB adsorption, showing different linear correlations with Sq and Ssk. These results demonstrate the importance of a thorough morphological characterization of the surfaces employed in protein adsorption and possibly also cell adhesion studies.

AKURASI KARAKTERISASI TINGKAT IN SITU TANAMAN UBI JALAR PADA DUA KECAMATAN DI KABUPATEN SERAM BAGIAN BARAT

2017 ◽  
Vol 13 (2) ◽  
pp. 103-110
Author(s):  
Helen Hetharie ◽  
Simon H T Raharjo ◽  
Gelora H Augustyn ◽  
Marietje Pesireron
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Leaf Shape ◽  
Morphological Characters ◽  
Morphological Characterization ◽  
Ex Situ ◽  
Survey Method ◽  
In Situ Characterization

Morphological characters of above ground plant parts can be used to distinguishsweet potato accessions. The objective of this study was to get a number of diversity of sweet potato accessions based on above ground part morphology and to determine the accuracy of in situ characterization. This study used a survey method in five villages in two sub-districts, namely Inomosol and Huamual Muka, Western Ceram District. The first stage of this study involved in situ characterization, and the second stage involved planting and ex situ morphological characterization of 2-month-old plants which was used sweet potato descriptors. Data were analyzed descriptively and qualitatively. The results showed that there were 25 accessions of sweet potato found in Huamual Muka and Inomosol Sub-districts, as distinguished by leaf shape and color, leaf patterns and leaf lobe number, petiole and stem colors, and vine twisting tendency. Verification results of the above ground morphology showed accuracy of ≥80% in 3 phenotypes in leaf lobe pattern, shape of central leaf lobe, linear middle leaves, leaves with 1, 5 and 7 lobes, green abaxial leaf veins, 2 petiole color phenotypes, purplish red stem, and stem additional colors. Meanwhile, the accuracy of characterization of other phenotypes was 0-76%. Keywords: diversity, ex situ, Ipomoea batatas, Maluku, morphology   ABSTRAK Karakter morfologi tajuk ubi jalar dapat digunakan sebagai pembeda antar aksesi. Tujuan penelitian untuk mendapatkan sejumlah klon ubi jalar yang beragam berdasarkan morfologi tajuk serta ketepatan karakterisasi morfologi pada tingkat in situ. Penelitian ini menggunakan metode survei di lima desa pada dua kecamatan yaitu kecamatan Inomosol dan Huamual Muka pada Kabupaten Seram Bagian Barat, Propinsi Maluku. Tahap pertama dengan mengkarakterisasi morfologi tajuk di kebun petani (in situ), dan tahap kedua penanaman dan karakterisasi ex situ di kebun koleksi pada umur tanaman 2 bulan menggunakan deskriptor ubi jalar. Data dianalisis secara deskriptif kualitatif. Hasil penelitian menunjukkan bahwa terdapat 25 aksesi ubi jalar di kecamatan Inomosol dan Huamual Muka yang dibedakan berdasarkan bentuk dan warna daun, pola dan jumlah lekuk daun, warna tangkai dan batang, serta sifat membelit. Hasil verifikasi terhadap karakterisasi in situ didapatkan akurasi ≥80% pada 3 fenotip pada pola lekuk daun, daun dengan bentuk bagian tengah linear, daun dengan jumlah cuping 1, 5 dan 7, tulang daun permukaan bawah berwarna hijau, 2 fenotip pada warna tangkai daun, batang berwarna merah keunguan, serta ada warna tambahan pada batang. Sedangkan akurasi karakterisasi pada fenotip lainnya yaitu 0-76%. Kata kunci: ex situ, Ipomoea batatas, keragaman, Maluku, morfologi

Sign in / Sign up

Export Citation Format

Share Document