Intramolecular and intermolecular crosslinked poly(vinyl alcohol)-borate complexes for the sustained release of fertilizers and enzymes

2011 ◽  
Vol 121 (4) ◽  
pp. 2450-2457 ◽  
Author(s):  
S. N. Kale ◽  
J. Mona ◽  
Sandip Dhobale ◽  
Trupti Thite ◽  
S. L. Laware
Keyword(s):  
Sustained Release ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Borate Complexes

scholarly journals Design and performance of a poly(vinyl alcohol)/silk fibroin enzymatically crosslinked semi-interpenetrating hydrogel for a potential hydrophobic drug delivery

RSC Advances ◽  
2019 ◽  
Vol 9 (70) ◽  
pp. 41074-41082 ◽  
Author(s):  
Chunqing Niu ◽  
Xiang Li ◽  
Yiyu Wang ◽  
Xinyu Liu ◽  
Jian Shi ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Sustained Release ◽  
Pore Structure ◽  
Silk Fibroin ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Hydrophobic Drug ◽  
Potential Applications ◽  
And Performance

Enzymatically cross-linked PVA/SF semi-IPN hydrogels with tunable pore structure have potential applications in sustained release of hydrophobic drug.

Shear thickening phenomena in poly(vinyl)alcohol-borate complexes

1968 ◽  
Vol 7 (1) ◽  
pp. 87-93 ◽  
Author(s):  
J. G. Savins
Keyword(s):  
Vinyl Alcohol ◽  
Shear Thickening ◽  
Poly Vinyl Alcohol ◽  
Borate Complexes

Electrospun poly(vinyl alcohol) composite nanofibers with halloysite nanotubes for the sustained release of sodiumd-pantothenate

2015 ◽  
Vol 133 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
Il Woo Lee ◽  
Jinglei Li ◽  
Xiguang Chen ◽  
Hyun Jin Park
Keyword(s):  
Sustained Release ◽  
Vinyl Alcohol ◽  
Composite Nanofibers ◽  
Halloysite Nanotubes ◽  
Poly Vinyl Alcohol

Sustained release behavior of pH-responsive poly(vinyl alcohol)/poly(acrylic acid) hydrogels containing activated carbon fibers

2010 ◽  
Vol 120 (2) ◽  
pp. 1050-1056 ◽  
Author(s):  
Jumi Yun ◽  
Ji Sun Im ◽  
Young-Seak Lee ◽  
Sung Joon Yoo ◽  
Hyung-Il Kim
Keyword(s):  
Activated Carbon ◽  
Acrylic Acid ◽  
Sustained Release ◽  
Carbon Fibers ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Activated Carbon Fibers ◽  
Release Behavior ◽  
Ph Responsive ◽  
Poly Acrylic Acid

Preparation of Nanoparticle‐Containing Ring‐Implanted Poly(Vinyl Alcohol) Contact Lens for Sustained Release of Hyaluronic Acid

2021 ◽  
pp. 2100043
Author(s):  
Elham Akbari ◽  
Rana Imani ◽  
Parvin Shokrollahi ◽  
Saeed Heidari keshel
Keyword(s):  
Hyaluronic Acid ◽  
Sustained Release ◽  
Contact Lens ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol

scholarly journals Formulasi dan Karakterisasi Nanopartikel Kafein Hasil Isolasi dari Biji Kopi Robusta

2021 ◽  
Vol 7 (1) ◽  
pp. 47-59
Author(s):  
Yunida Yunida ◽  
Muhammad Totong Kamaluddin ◽  
Theodorus Theodorus ◽  
Sonlimar Mangunsong
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Particle Size ◽  
Sustained Release ◽  
Vinyl Alcohol ◽  
Glycolic Acid ◽  
Polydispersity Index ◽  
Poly Vinyl Alcohol ◽  
Transmission Electron ◽  
Particle Size Analyzer

Kopi robusta merupakan jenis kopi yang paling banyak dikembangkan oleh petani di Indonesia. Kopi kaya akan zat bioaktif yang memberikan manfaat bagi kesehatan, salah satunya adalah kafein. Namun, konsumsi kafein dalam jumlah berlebihan juga dapat menimbulkan efek samping. Salah satu upaya untuk meminimalkan efek samping dan menghasilkan sediaan sustained release adalah dengan membuat formulasi kafein dalam bentuk sediaan nanopartikel. Dalam penelitian ini dilakukan ekstraksi, isolasi dan identifikasi kafein dari biji kopi robusta. Dari 200 gram biji kopi robusta diperoleh kristal kafein sebanyak 0,83 gram. Hasil identifikasi secara mikroskopis diperoleh morfologi kristal kafein seperti jarum-jarum panjang dan karakteristik kristal kafein mirip dengan kafein standar. Preparasi nanopartikel kafein dilakukan menggunakan metode single emulsion-solvent evaporation dengan pembawa PLGA (Poly-(Lactic-co-Glycolic Acid)) dan PVA (Poly(Vinyl Alcohol)) sebagai stabilizer. Karakterisasi preparat nanopartikel menggunakan PSA (Particle Size Analyzer) memberikan hasil diameter ukuran partikel 183,9 nm, nilai PDI (Polydispersity Index) 0,113 dan zeta potensial -13,5 mV. Penentuan morfologi menggunakan Transmission Electron Microscopy diperoleh partikel yang berbentuk bulat (spheris).  

Poly(vinyl alcohol)-induced thixotropy of an l-carnosine-based cytocompatible, tripeptidic hydrogel

Soft Matter ◽  
2019 ◽  
Vol 15 (3) ◽  
pp. 433-441 ◽  
Author(s):  
Rita Das Mahapatra ◽  
Joykrishna Dey ◽  
Richard G. Weiss
Keyword(s):  
Sustained Release ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Thixotropic Behaviour

Sustained release of doxorubicin from a β-aminoacid-containing cytocompatible tripeptidic hydrogel which shows thixotropic behaviour after PVA-induction.

Structure of junction zones in poly (vinyl alcohol) gels by rheological and thermal studies

1996 ◽  
Vol 93 ◽  
pp. 880-886 ◽  
Author(s):  
K Nishinari ◽  
M Watase ◽  
F Tanaka
Keyword(s):  
Vinyl Alcohol ◽  
Thermal Studies ◽  
Poly Vinyl Alcohol
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