Results 61 to 70 of about 3,346,525 (391)

miR-200b restrains EMT and aggressiveness and regulates matrix composition depending on ER status and signaling in mammary cancer

open access: yesMatrix Biology Plus, 2020
Secreted microRNAs (miRNAs) reside in a complex regulatory network with extracellular matrix (ECM) macromolecules, which affect cell-cell communication, therefore miRNA expression highlights its significance in several aspects of human diseases ...
Zoi Piperigkou   +4 more
doaj  

Dexamethasone-loaded zeolitic imidazolate frameworks nanocomposite hydrogel with antibacterial and anti-inflammatory effects for periodontitis treatment

open access: yesMaterials Today Bio, 2022
Periodontitis is a bacterial-induced, chronic inflammatory disease characterized by progressive destruction of tooth-supporting structures. Pathogenic bacteria residing in deep periodontal pockets after traditional manual debridement can still lead to ...
Ning Li   +8 more
doaj  

Sampling and Mapping Chemical Space with Extended Similarity Indices

open access: yesMolecules, 2023
Visualization of the chemical space is useful in many aspects of chemistry, including compound library design, diversity analysis, and exploring structure–property relationships, to name a few.
Kenneth López-Pérez   +3 more
doaj   +1 more source

Synthesis and characterization of hybrid organic-inorganic materials based on sulphonated polyamideimide and silica [PDF]

open access: yes, 2010
The preparation of hybrid organic–inorganic membrane materials based on a sulphonated polyamideimide resin and silica filler has been studied. The method allows the sol–gel process to proceed in the presence of a high molecular weight polyamideimide,
Anita Hill   +26 more
core   +1 more source

Hydroxylamine Chemical Digestion for Insoluble Extracellular Matrix Characterization.

open access: yesJournal of Proteome Research, 2017
The extracellular matrix (ECM) is readily enriched by decellularizing tissues with nondenaturing detergents to solubilize and deplete the vast majority of cellular components.
Alexander S Barrett   +6 more
semanticscholar   +1 more source

Antireflection Surfaces for Biological Analysis Using Laser Desorption Ionization Mass Spectrometry

open access: yesResearch, 2018
Laser desorption ionization mass spectrometry (LDI-MS) is a primary tool for biological analysis. Its success relies on the use of chemical matrices that facilitate soft desorption and ionization of the biomolecules, which, however, also limits its ...
Jing Yang   +6 more
doaj   +1 more source

SOURCE IDENTIFICATION OF ENVIRONMENTAL POLLUTANTS USING CHEMICAL ANALYSIS AND POSITIVE MATRIX FACTORIZATION [PDF]

open access: yes, 2012
Multivariate modeling techniques are successfully used in different areas of environmental research because of their ability to process large data sets. The main objective of their application lies in the determination of data structures and hidden information which account for the data set variability. This thesis work seeks to explore the application
openaire   +1 more source

Spatiotemporal Organization of Biofilm Matrix Revealed by Confocal Raman Mapping Integrated with Non-Negative Matrix Factorization Analysis.

open access: yesAnalytical Chemistry, 2019
Biofilms are microbial aggregates of microorganisms surrounded by a hydrogel-like matrix formed by extracellular polymeric substances (EPS). The formation of biofilms is intrinsically complex, from the attachment of microbial cells to the dispersion of ...
Xiao-Yang Liu   +6 more
semanticscholar   +1 more source

Detecting Anomaly in Chemical Sensors via L1-Kernels based Principal Component Analysis [PDF]

open access: yesarXiv, 2022
We propose a kernel-PCA based method to detect anomaly in chemical sensors. We use temporal signals produced by chemical sensors to form vectors to perform the Principal Component Analysis (PCA). We estimate the kernel-covariance matrix of the sensor data and compute the eigenvector corresponding to the largest eigenvalue of the covariance matrix.
arxiv  

Hilbert space renormalization for the many-electron problem [PDF]

open access: yes, 2015
Renormalization is a powerful concept in the many-body problem. Inspired by the highly successful density matrix renormalization group (DMRG) algorithm, and the quantum chemical graphical representation of configuration space, we introduce a new ...
Chan, Garnet Kin-Lic, Li, Zhendong
core   +3 more sources

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