Exact(7)
Herein, MCs formed with pyrazinehydroxamic acid (Ln3+[Zn(ii MCpyzHA], Ln3+ = Yb, Nd) were used, combined with near-infrared (NIR) counter staining and fixation agents for HeLa cells upon an initial five minute exposure to UV-A light.
We evaluated a range of fixation agents, post-fixation time and dehydration solutions to determine a TEM protocol for seaweeds in the Family Ulvaceae.
Fixation agents, fixation time and type of tissue are important factors to consider for transmission electron microscopy (TEM), and not every protocol is suitable for all cell types.
Among various fixation agents for cross-linking cell membrane and cytoplasmic protein, paraformaldehyde (PFA) is one of the most widely used chemical agents for cell and tissue samples [4 6].
Similar to Hudson, Weber (2005, Ch. 9) argues that the demonstration that mesosomes were experimental artifacts was nothing but an ordinary experimental demonstration of the existence of a causal relationship, namely between mesosome appearances and the fixation agents.
Biobriquette technology, in which biobriquettes are made of biomass, coal, and sulfur fixation agents through high-pressure manufacturing processes (Lu et al. 2000), is being investigated.
Similar(53)
Paraformaldehyde (PFA) has been widely used as a cross-linking fixation agent.
Approximately 120 years ago, formaldehyde was identified as a superior fixation agent to preserve tissue samples [ 1].
4% formaldehyde (Formaldehyde solution min. 37% free from acid, cat#103999, 64293 Darmstadt, Germany) in phosphate buffered saline (PBS) was used as a fixation agent to preserve the sub-structures of the cells (physically and chemically) for microscopy.
Where treated with inhibitors prior to fixation, the indicated agents were applied in DMEM (without Phenol Red or sodium pyruvate) supplemented with 25 mM Hepes, pH 7.4 (Invitrogen) and 10% (v/v) FBS.
Importantly, the fluxes of different ions had very distinctive time courses, and were abolished or significantly affected by chemical fixation or by pharmacological agents that modulate ion transport.
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