Results 81 to 90 of about 18,697,629 (340)

Development of a reference material for the composition of 0.1 m potassium dichromate solution. Certified reference material GSO 10992-2017

Стандартные образцы, 2019
This paper describes key stages in the development and investigation of a high-precision certified reference material (CRM) for the composition of potassium dichromate solution.
A. Yu. Shimolin, A. V. Sobina
doaj   +1 more source

Probing the origin of fluorescence quenching of graphene-porphyrin hybrid material [PDF]

, 2012
We report transient absorption spectroscopic studies on the hybrid material composed of porphyrin molecules covalently attached to graphene for investigating the mechanism underlying the reported fluorescence quenching of porphyrin in the hybrid [1 ...
Browne, W.R., Feringa, B.L., Herek, J.L., Huijser, J.M., Sharma, D., Zhang, Xiaoyan   +5 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Synthesis and Characterization of Ultra‐Small Gold Nanoparticles in the Ionic Liquid 1‐Ethyl‐3‐methylimidazolium Dicyanamide, [Emim][DCA]

ChemistryOpen
We report on gold clusters with around 62 gold atoms and a diameter of 1.15±0.10 nm. Dispersions of the clusters are long‐term stable for two years at ambient conditions.
Jana Hildebrandt, Prof. Dr. Andreas Taubert, Prof. Dr. Andreas F. Thünemann   +2 more
doaj   +1 more source

Development and validation of reference material for the detection of cashew nut ingredients by real-time quantitative PCR

Food Science and Human Wellness
To solve the problem of the lack of reference material (RM) for determination of allergenic ingredients in food, a RM of cashew nut powder was developed in the study. Cashew nut powder was prepared from cashew nut kernel by selecting, cleaning, crushing,
Jiang Man, Xiuyan Sun, Xiaobo Zhang, Ning Yu, Dajun Xu, Ying Chen, Jijuan Cao   +6 more
doaj   +1 more source

Development of certified reference materials for physicochemical analysis. Certified reference solutions for the composition of aqueous aluminum, indium, magnesium, nickel and titanium

Стандартные образцы, 2019
This paper presents information on the development and certification of reference materials (CRM) for the composition of aqueous aluminium, indium, magnesium, nickel, and titanium solutions.CRMs are represented by aqueous solutions containing aluminium ...
I. I. Ermakova, A. V. Ivanov, I. N. Zyablikova, A. N. Shobina   +3 more
doaj   +1 more source

Challenges in the size analysis of a silica nanoparticle mixture as candidate certified reference material

Journal of nanoparticle research, 2016
A new certified reference material for quality control of nanoparticle size analysis methods has been developed and produced by the Institute for Reference Materials and Measurements of the European Commission’s Joint Research Centre.
V. Kestens, G. Roebben, J. Herrmann, Å. Jämting, V. Coleman, C. Minelli, C. Clifford, Pieter-Jan De Temmerman, J. Mast, Junjie Liu, F. Babick, H. Cölfen, H. Emons   +12 more
semanticscholar   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Estabilidad de un suero control multienzimático utilizado como material de referencia en los laboratorios clínicos Stability of a multienzyme control serum used as reference material in clinical laboratories

Revista Cubana de Investigaciones Biomédicas, 2012
Una de las vías fundamentales para garantizar la calidad de los ensayos realizados en los laboratorios clínicos es mediante el uso de materiales de referencia.
Oscar Hernández Betancourt, Sandra Fernández Torres, Nayadis Vázquez Reyes, Lydice Leiva Quesada, Yadira Falcón Almeida, Ubaldo Torres Romo   +5 more
doaj  

Comparison of four digital PCR platforms for accurate quantification of DNA copy number of a certified plasmid DNA reference material

Scientific Reports, 2015
Digital polymerase chain reaction (dPCR) is a unique approach to measurement of the absolute copy number of target DNA without using external standards. However, the comparability of different dPCR platforms with respect to measurement of DNA copy number
Lianhua Dong, Y. Meng, Z. Sui, Jing Wang, Liqing Wu, B. Fu   +5 more
semanticscholar   +1 more source