2622-89-1Relevant articles and documents
Abley,Halpern
, p. 1238 (1971)
Boron Schiff bases derived from α-amino acids as nucleoli/cytoplasm cell-staining fluorescent probes: In vitro
Chávez-Reyes, Arturo,Jiménez Pérez, Víctor M.,Lara-Cerón, Jesús A.,Mu?oz-Flores, Blanca M.,Ochoa, María E.,Xochicale-Santana, Leonardo
, p. 31748 - 31757 (2020)
The size, shape, and number of nucleoli in a cell's nucleus might help to distinguish a malignant from a benign tumor. Cellular biology and histopathology often require better visualization to understand nucleoli-related processes, thus organelle-specific fluorescent markers are needed. Here, we report the design, synthesis, and fully chemo-photophysical characterization of fluorescent boron Schiff bases (BOSCHIBAs), derived from α-amino acids (i.e., phenylalanine, tyrosine and tryptophan), with nucleoli- and cytoplasm-specific staining in cells. It is the first time that Boron Schiff bases derived from α-amino acids act as notorious dual (nucleoli and cytoplasm) cell-staining fluorescent probes. The boron derivatives not only showed good photostability and acceptable quantum yields (~5%) in solution, but also exhibited low cytotoxicity (>90% cell viability at 0.1 and 1 μg mL-1), which make them good candidates to be used in medical diagnosis. This journal is
In situ measurements of tetraphenylboron degradation kinetics on clay mineral surfaces by IR
Hunter,Bertsch
, p. 686 - 691 (1994)
An attenuated total reflectance Fourier transform infrared (ATR-IR) spectroscopic method has been developed to quantitatively measure, in situ, the surface-facilitated degradation of tetraphenylboron (TPB) in fully aquated clay pastes. Two pathways for degradation of TPB could be studied both independently and simultaneously. Surface-facilitated oxidation of TPB to diphenylboric acid (DPBA) at Lewis acid sites on clay mineral surfaces was investigated on three members of the smectite family of clays. -from Authors
Bright and Stable NIR-II J-Aggregated AIE Dibodipy-Based Fluorescent Probe for Dynamic In Vivo Bioimaging
Zhang, Qisong,Yu, Peng,Fan, Yong,Sun, Caixia,He, Haisheng,Liu, Xuan,Lu, Lingfei,Zhao, Mengyao,Zhang, Hongxin,Zhang, Fan
supporting information, p. 3967 - 3973 (2020/12/25)
Organic dyes emitting in the second near-infrared (NIR-II, 900–1700 nm) window, with high molar extinction coefficients (MEC) and quantum yields (QY) in aqueous, are essential for in vivo bioimaging and biosensing. In this work, we developed a dibodipy-based aggregation-induced emission (AIE) fluorescent probe, THPP, to meet this aim. THPP exhibits a high MEC and has intensified absorption and emission in J-aggregated state, which significantly enhance the fluorescence intensity (≈55 folds) and extend the maximal absorption/emission wavelengths to 970/1010 nm in NIR-II region. Based on the bright THPP, imaging with a high frame rate (34 frames per second) at a deep “valid penetration depth” up to 6 mm can be achieved. This enabled simultaneous and dynamic imaging of vasculatures and deep tissues. Besides, we succeeded in monitoring the respiratory rate of acute-lung-injury mice and tracing the collateral circulation process with a high frame rate.
COMPOUNDS AND METHODS FOR THE TREATMENT OF PATHOGENIC NEISSERIA
-
Page/Page column 41, (2020/05/06)
Tetracoordinate organoborate compounds, such as compounds harboring a tetraarylborate anion or a triarylalkylborate anion, are shown to exhibit a selective bacteriostatic and bactericidal effect against pathogenic Neisseria species such as N. meningitidis