Results 21 to 30 of about 47,051 (228)

Measuring the force ejecting DNA from phage [PDF]

open access: yes, 2004
We discuss how a balance can be established between the force acting to eject DNA from viral capsids and the force resisting its entry into a colloidal suspension which mimics the host cell cytoplasm.
Castelnovo, M.   +3 more
core   +1 more source

Selective and highly efficient dye scavenging by a pH-responsive molecular hydrogelator [PDF]

open access: yes, 2010
A structurally simple low molecular weight hydrogelator derived from isophthalic acid forms robust pH-responsive hydrogels capable of highly efficient and selective dye ...
Abdallah   +27 more
core   +4 more sources

A New Transgenic Mouse Model for Studying the Neurotoxicity of Spermine Oxidase Dosage in the Response to Excitotoxic Injury.

open access: yesPLoS ONE, 2013
Spermine oxidase is a FAD-containing enzyme involved in polyamines catabolism, selectively oxidizing spermine to produce H2O2, spermidine, and 3-aminopropanal. Spermine oxidase is highly expressed in the mouse brain and plays a key role in regulating the
Manuela Cervelli   +12 more
doaj   +1 more source

Decreased sensitivity to aspirin is associated with altered polyamine metabolism in human prostate cancer cells [PDF]

open access: yes, 2015
Acknowledgments We thank NHS Grampian for financial support of this work.Peer reviewedPublisher ...
Cameron, Gary A.   +2 more
core   +1 more source

Improving Chilling Tolerance of Maize Seedlings under Cold Conditions by Spermine Application

open access: yesNotulae Scientia Biologicae, 2012
Low temperature is an important abiotic stress which reduces crops growth and productivity and causes physiological damages to cellular structures. The aim of this study was to investigate the probability of spermine application to improve chilling ...
Amir Hossein SAEIDNEJAD   +2 more
doaj   +3 more sources

Tetrahydrobiopterin analogues with NO-dependent pulmonary vasodilator properties [PDF]

open access: yes, 2011
Reduced NO levels due to the deficiency of tetrahydrobiopterin (BH4) contribute to impaired vasodilation in pulmonary hypertension Due to the chemically unstable nature of BH4 it was hypothesised that oxidatively stable analogues of BR, would be able to ...
Gibson, Colin   +4 more
core   +1 more source

Silver Nanoparticle Aggregates as Highly Efficient Plasmonic Antennas for Fluorescence Enhancement [PDF]

open access: yes, 2012
The enhanced local fields around plasmonic structures can lead to enhancement of the excitation and modification of the emission quantum yield of fluorophores.
Amerongen, H.   +5 more
core   +4 more sources

Changes in the sugars, amino acids and organic acids of postharvest spermine-treated immature vegetable soybean (Glycine max L. Merr.) as determined by 1H NMR spectroscopy

open access: yesFood Production, Processing and Nutrition, 2020
1H NMR spectroscopy was adopted to determine compositional changes (mainly sugars, organic acids and amino acids) involved in cold-stored immature soybean grains after exogenous spermine treatment.
Jiangfeng Song   +4 more
doaj   +1 more source

Non-monotonic swelling of a macroion due to correlation-induced charge inversion [PDF]

open access: yes, 2008
It is known that a large, charged body immersed in a solution of multivalent counterions may undergo charge inversion as the counterions adsorb to its surface.
Arenzon   +21 more
core   +1 more source

GlnA3Mt is able to glutamylate spermine but it is not essential for the detoxification of spermine in Mycobacterium tuberculosis

open access: yesJournal of Bacteriology
Mycobacterium tuberculosis is well adapted to survive and persist in the infected host, escaping the host’s immune response. Since polyamines such as spermine, which are synthesized by infected macrophages, are able to inhibit the growth of M ...
Sergii Krysenko   +14 more
doaj   +1 more source

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