Results 31 to 40 of about 2,358,784 (358)

Controlled-release fertilizers: advances and challenges [PDF]

open access: yes, 2015
Controlled- release fertilizers (CRFs) offer an excellent option to improve nutrients uptake by plants and reduce the environmental hazards due to excess release of chemicals. Polymer-coated fertilizers, compared to the other types of CRF, are by far the
Ali, Salmiaton, Danafar, Firoozeh
core   +1 more source

Adriamycin loading and release characteristics of albumin-heparin conjugate microspheres [PDF]

open access: yes, 1994
Biodegradable ion-exchange microspheres, prepared from a prefabricated conjugate of albumin and heparin were investigated as carriers for adriamycin. The ion-exchange microspheres could be loaded with adriamycin giving payloads up to 33% w/w, depending ...
Bae, Y.H.   +6 more
core   +2 more sources

A Technical System for the Large-Scale Application of Metabolites From Paecilomyces variotii SJ1 in Agriculture

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Compared with endophytes, metabolites from endophytes (MEs) have great potential in agriculture. However, a technique for industrializing the production of MEs is still scarce.
Qingbin Wang   +9 more
doaj   +1 more source

3D hybrid wound devices for spatiotemporally controlled release kinetics [PDF]

open access: yes, 2012
This paper presents localized and temporal control of releasekinetics over 3-dimensional (3D) hybridwounddevices to improve wound-healing process. Imaging study is performed to extract wound bed geometry in 3D.
Koc, Bahattin   +3 more
core   +1 more source

Fulvic acid-like substance-Ca(II) complexes improved the utilization of calcium in rice: Chelating and absorption mechanism

open access: yesEcotoxicology and Environmental Safety, 2022
Water-soluble chelated calcium has been widely used in agriculture as a fertilizer to improve the absorption and utilization of calcium by plants. This paper prepared a new organic mineral fertilizer, based on fulvic acid-like substance chelated calcium (
Zhonghua Wang   +2 more
doaj   +1 more source

Cellulose, Chitosan, and Keratin Composite Materials. Controlled Drug Release [PDF]

open access: yes, 2015
A method was developed in which cellulose (CEL) and/or chitosan (CS) were added to keratin (KER) to enable [CEL/CS+KER] composites to have better mechanical strength and wider utilization.
Mututuvari, Tamutsiwa Moven   +1 more
core   +4 more sources

Delivery Systems in Ocular Retinopathies: The Promising Future of Intravitreal Hydrogels as Sustained-Release Scaffolds

open access: yesPharmaceutics, 2023
Slow-release delivery systems are needed to ensure long-term sustained treatments for retinal diseases such as age-related macular degeneration and diabetic retinopathy, which are currently treated with anti-angiogenic agents that require frequent ...
Diana Rafael   +8 more
doaj   +1 more source

Regulating the antibiotic drug release from ß-tricalcium phosphate ceramics by atmospheric plasma surface engineering [PDF]

open access: yes, 2016
Calcium phosphate (CaP) ceramics are of interest in bone substitution due to their good biocompatibility and bioresorbability. Currently certain CaPs in the market are loaded with antibiotics in order to prevent infections but further control is needed ...
Canal Barnils, Cristina   +3 more
core   +2 more sources

Tunable biohybrid hydrogels from coacervation of hyaluronic acid and PEO‐based block copolymers [PDF]

open access: yes, 2020
Accurately tuning the macroscopic properties of biopolymer‐based hydrogels remains challenging due to the ill‐defined molecular architecture of the natural building blocks.
Gopez, Jeffrey D.   +3 more
core   +1 more source

A controlled-release microchip [PDF]

open access: yesNature, 1999
Much previous work in methods of achieving complex drug-release patterns has focused on pulsatile release from polymeric materials in response to specific stimuli, such as electric or magnetic fields, exposure to ultrasound, light or enzymes, and changes in pH or temperature.
J T, Santini, M J, Cima, R, Langer
openaire   +2 more sources

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