Results 41 to 50 of about 918,355 (214)

Preparation and properties of hydrogel based on sawdust cellulose for environmentally friendly slow release fertilizers

open access: yesGreen Processing and Synthesis, 2020
A novel hydrogel slow-release nitrogen fertilizer based on sawdust with water absorbency was prepared using grafting copolymerization. Urea was incorporated as nitrogen source in a hydrogel fertilizer.
Zhang Xiao   +3 more
doaj   +1 more source

Photocrosslinked microgels for oral delivery of macromolecular based-therapeutics

open access: yes, 2015
In this work we present the fabrication of planar micro-hydrogels serving as vehicle for oral delivery of poorly bioavailable drugs. Microfabricated gels were prepared by means of selective exposure of aqueous solutions of poly(vinylpyrrolidone) (PVP) to
Faralli, A.   +7 more
core  

Effects of Controlled-Release Nitrogen Fertilizer at Different Release Stages on Rice Yield and Quality

open access: yesAgronomy
The replacement of common urea with controlled-release nitrogen fertilizer can improve rice yield and quality, but the effect of controlled-release nitrogen fertilizer on rice yield and quality at different release stages is still unclear.
Zhen Yu   +5 more
doaj   +1 more source

Modeling of drug release from a polymeric matrix

open access: yes, 1997
Proceedings of the Controlled Release Society ...
GRASSI, Mario   +4 more
core  

Lipid implants for controlled release of proteins

open access: yes, 2007
In recent years, we have seen significant progress towards understanding the role of proteins in both physiological and pathological processes. Especially neurotrophic factors have increasingly come into focus for the treatment of neurodegenerative ...
Könnings, Stephanie
core   +1 more source

Exenatide Microspheres for Monthly Controlled-Release Aided by Magnesium Hydroxide

open access: yes, 2021
GLP-1 receptor agonists are a class of diabetes medicines offering self-regulating glycemic efficacy and may best be administrated in long-acting forms.
Tuo Jin   +5 more
core   +1 more source

High-entropy layered double hydroxide nanosheets reprogram tumor homeostasis for ultrasound-enhanced pyroptosis-mediated immunotherapy

open access: yesJournal of Nanobiotechnology
Developing redox nanozymes able to disrupt cellular homeostasis and promoting immunotherapy offers great potentials to develop highly efficient cancer therapy, but remains challenging.
Xueting Yang   +9 more
doaj   +1 more source

Doxorubicin delivery by pYEEIE peptide-functionalized rhodiola rosea-derived exosome-like nanovesicles for targeted melanoma therapy

open access: yesFrontiers in Pharmacology
IntroductionMelanoma is the most common cause of skin cancer-related deaths due to its aggressive nature. Plant-derived exosome-like nanovesicles (PELNs) are promising natural nanoparticles for therapeutic applications owing to their biocompatibility and
Meitao Duan   +9 more
doaj   +1 more source

Control and Release in Complex Relationships [PDF]

open access: yesIEEE Computer Graphics and Applications, 2017
Artist James Alan Smith is driven to involve himself in the creative process, whether through coding or visual art. The effect of his abstract and representation pieces is extraordinary and mysterious, and each encourages viewers to see the complex relationships between the various layers.
openaire   +2 more sources

Chitosan-NVP IPN hydrogels synthesised through photoinitiator-free photopolymerisation technique for drug delivery

open access: yes, 2004
Interpenetrating polymer network (IPN) hydrogels of chitosan with N-vinylpyrrolidinone (NVP) as well as its copolymer with 2 -hydroxyethyl met hacrylate (HEMA) were synthesised through the photoinitiator - free photopolymerisation technique.
Swami, Salesh N., Ng, Loo-Teck
core  

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