Results 41 to 50 of about 1,810,207 (355)

Simple procedure for nutrient analysis of coffee plant with energy dispersive X-ray fluorescence spectrometry (EDXRF)

Scientia Agricola, 2013
Nutrient analysis is used to estimate nutrient content of crop plants to manage fertilizer application for sustained crop production. Direct solid analysis of agricultural and environmental samples by energy dispersive X-ray fluorescence spectrometry ...
Tiago Tezotto, José Laércio Favarin, Ana Paula Neto, Priscila Lupino Gratão, Ricardo Antunes Azevedo, Paulo Mazzafera   +5 more
doaj   +1 more source

SENSING IMMOBILIZED MOLECULES OF STREPTAVIDIN ON A SILICON SURFACE BY MALDI-TOF MASS SPECTROMETRY AND FLUORESCENCE MICROSCOPY [PDF]

, 2014
Indexación: Web of Science; Scielo.A hydrogen-terminated Si (111) surface was modified to form an aminoterminated monolayer for immobilization of streptavidin.
ARAYA, EYLEEN, ESCOBAR, CARLOS A., GUELL, ALEIX G., KOGAN, MARCELO J., SANZ, FAUSTO   +4 more
core   +2 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Use of fluorescence imaging and spectrometry in detection of oral squamous cell carcinoma and oral potentially malignant disorders

Oral Oncology Reports
Objective: Changes in the autofluorescence of cancerous tissue in comparison to normal tissue due to alteration in the endogenous fluorophores and protein like NAD and FAD has been utilized in various oral cancer screening devices.
Vivek Nayyar, Pramila Thapa, Dalip Singh Mehta, Rahul Yadav, Krushna Bhatt, Varun Surya, Deepika Mishra   +6 more
doaj   +1 more source

Foliar Elemental Analysis of Brazilian Crops via Portable X-ray Fluorescence Spectrometry

Sensors, 2020
Foliar analysis is very important for the nutritional management of crops and as a supplemental parameter for soil fertilizer recommendation. The elemental composition of plants is traditionally obtained by laboratory-based methods after acid digestion ...
Camila S. Borges, David C. Weindorf, Geila S. Carvalho, Luiz R. G. Guilherme, Thalita Takayama, Nilton Curi, Geraldo J. E. O. Lima, Bruno T. Ribeiro   +7 more
doaj   +1 more source

Detection of PFAS via surface-enhanced Raman scattering: Challenges and future perspectives

Sustainable Chemistry for the Environment, 2023
The upsurge in the alarm about the hazardous effects of one of the important emerging contaminants, Per- and polyfluoroalkyl substances (PFAS) are increasing in recent days.
Bhavya M.B., Novuhulu Rhakho, Satya Ranjan Jena, Sudesh Yadav, Ali Altaee, Manav Saxena, Akshaya K. Samal   +6 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Geochemical Characteristics of Selenium in Surface Soil of Central Townships in Zhaojue County, Sichuan Province

Yankuang ceshi, 2022
BACKGROUND Selenium (Se) is one of the essential trace elements for humans, and an important way for humans to obtain and supplement selenium is by eating natural selenium-enriched agricultural products. The geochemical characteristics of selenium in the
ZHAO Chen, SUN Binbin, HE Ling, WU Chao, CHENG Xiaomeng, ZENG Daoming, LIU Dong   +6 more
doaj   +1 more source

The C-terminal portion of the cleaved HT motif is necessary and sufficient to mediate export of proteins from the malaria parasite into its host cell [PDF]

, 2012
The malaria parasite exports proteins across its plasma membrane and a surrounding parasitophorous vacuole membrane, into its host erythrocyte. Most exported proteins contain a Host Targeting motif (HT motif) that targets them for export. In the parasite
Cryar, Adam, Haldar, K., Osborne, Andrew R., Tarr, Sarah J., Thalassinos, Konstantinos   +4 more
core   +1 more source