NEUTRAL AND POSITIVE AND NEGATIVE ?
According to Hongtao et al. (J. Mater. Chem. A; 2014), the Fe3O4 NPs are positively charged in neutral and acidic aqueous solutions, and negatively charged in basic aqueous solution.
How can i determine whether interaction between NH2 and COO is Covalent or non-Covalent?(Which method or Which instrument).
07 August 2018 4,908 2 View
working on the different cell line I don't now there is different between liposome and niosmoe in toxicity? how can I decrease the toxicity of them?
09 October 2016 1,822 3 View
can i use negative liposome for gene delivery . if i can, please attach a paper for this topic.
07 August 2015 9,536 0 View
fe3o4
11 December 2014 7,316 0 View
Fe3O4 nanoparticle with 20 nm size.
11 December 2014 5,674 3 View
electrospinning
08 September 2014 4,910 1 View
I want to prepare niosome for gene delivery and my material is span60 , PEG, diethylether and cholestrol.
08 September 2014 2,472 3 View
for theory
08 September 2014 10,152 2 View
Hello, I suspect that a molecule I am using is causing bacteria to experience osmotic shock. What chemical properties should I look for to compare this capability with those of other substances?...
06 August 2024 977 1 View
We are working on biopolymeric hydrogels. Our system is highly viscous and sticky, and the gel formed are high in strength. We are unable to use pH electrode and pH strip. Please suggest an easy...
30 July 2024 942 2 View
Hello everyone! How can i prepare EDTA buffer solution (pH 8.2) to determine GSH levels? Thank you in advance.
29 July 2024 4,374 1 View
I want to preserve the sample leaves for the LM study of the stomata and conidia analysis. Whether 2.5% glutaraldehyde in 0.05 M phosphate buffer with pH 7 can be applied for preservation.
29 July 2024 8,560 0 View
The column is used in Ion Exchange Chromatography of Monoclonal antibodies and the method of analysis is based on pH gradint.
13 July 2024 7,462 1 View
I performed CV of Cu-MOF in a buffer solution of pH 8, and we did not find any peak corresponding to Cu2+ to Cu+. What is the reason behind this? Please give your valuable suggestions.
08 July 2024 2,388 4 View
I was wondering if it is possible to form a permanent open "ssDNA bubble" similar to a transcription bubble (>13 nucleotides) within E. coli. These criteria are important: 1. Open ssDNA...
07 July 2024 8,275 5 View
Can this pH of 8 be due to the presence of other substances? Or do I have an error somewhere in the analysis? Thank you!
26 June 2024 9,093 4 View
Hello, We are designing a protocol to determine the effect of certain compounds in the health of rats, but our problems have certain instability issues when subjected to certain pHs. We were...
19 June 2024 5,950 1 View
Hello, I am trying to purify a 6X-His tagged protein using Ni-NTA chromatography. However, I obtain very less yield & concentration; and considerable protein in load flow through. Any...
16 June 2024 5,876 5 View