Results 91 to 100 of about 284,335 (284)

Hierarchically Engineered Multi‐Enzyme Nanoreactors for in vitro Drug Biosynthesis and Pathway Transplantation Into Cells

Advanced Materials, EarlyView.
A hierarchically structured metal–organic framework (eMIL) is shown to host the complete six‐enzyme biosynthesis pathway for the anti‐cancer pigment violacein, reshaping reaction dynamics and multiplying in vitro yields. eMIL nanoreactors deliver this reconstituted bacterial multi‐protein system into mammalian cells, where cell‐derived substrates and ...
Ainur Sharip, Somayah S. Qutub, Manar M. Farooqui, Walaa Baslyman, Nida Khalfay, Lukman O. Alimi, Patricia Lopez Sanchez, Lingyun Zhao, Milena Chernyshevskaia, Giovanni Colombo, Niveen M. Khashab, Stefan T. Arold, Raik Grünberg   +12 more
wiley   +1 more source

Improvement in protein separation by pH excursion modulated ion-exchange chromatography

Journal of Chromatography Open
The transient change in pH during the elution step in ion exchange chromatography is commonly referred to as pH excursion. Acidic pH excursion is usually observed during salt-based elution in cation exchange chromatography.
Raja Ghosh
doaj   +1 more source

Analytical methods in wineries: is it time to change? [PDF]

, 2005
A review of the methods for the most common parameters determined in wine—namely, ethanol, sulfur dioxide, reducing sugars, polyphenols, organic acids, total and volatile acidity, iron, soluble solids, pH, and color—reported in the last 10 years is ...
Andersen S. K., Anon, Arnes S., Belton P. S., Bi L. J., Billingsley A., Cardwell T. J., Cardwell T. J., Chen S. G., Chmilenko F. A., Cserhati T., Dai G. S., Dell´Oro V., Edberg U., Escobal A., Fang G. Z., Feng Z., Ga R. D., Gao Z. F., González-Rodríguez J., Guan J. R., Hu J. Y., J. González-Rodríguez, Kaufmann A., Kawamura Y., Kosir I. J., Kupina S. A., Lodi G., Luo H. Q., M. D. Luque de Castro, Mannino S., Miao J. G., Mou S., Olalla M., P. Pérez-Juan, Patz C. D., Polo M. C., Rapp A., Ribereau-Gayon J., Scollary G. R., Sebecic B., Vereda-Alonso E., Wang J. H., Wang J. S., Wang X. H., Wu X., Wu X. L., Yan J., Yu H., Zhang W., Zhang W., Zhou H.   +51 more
core   +1 more source

A Super‐Adhesive Air Filter With Capillarity‐Mediated Spontaneous Particle Absorption via Dynamic Bond Exchange

Advanced Materials, EarlyView.
We address the inherently weak particle adhesion of conventional air filters by coating a dynamically crosslinked adhesive layer that delivers capillarity‐driven strong adhesion and particle absorption mediated by dynamic bond exchange. The resulting enhancement in particle adhesion enables efficient ultrafast (up to 20 m s−1) and omnidirectional ...
Junyong Park, Hyeri Jeon, Hyunwoong Park, Ji Min Lee, Yeomyung Yoon, Gyeong Hwan Choi, Sazzadul A. Rahat, Dong Wook Lee, Sohdam Jeong, Jonathan T. Pham, Chae Bin Kim, Sanghyuk Wooh   +11 more
wiley   +1 more source

Buoyancy regulation and aggregate formation in Amoebobacter purpureus from Mahoney lake [PDF]

, 1992
The meromictic Mahoney Lake (British Columbia, Canada) contains an extremely dense layer of purple sulfur bacteria (Amoebobacter purpureus). The buoyant density of Amoebobacter cells grown in pure culture at saturating light intensity was significantly ...
Bar-Ness, Bar-Or, Booker, Bryant, Bührer, Caldwell, Cline, Courtney, Dahlbäck, Dietrich, Doyle, Eichler, Fattom, Hart, Hartree, Herbert, Huheey, Hutchinson, Jenkinson, Jörg Overmann, Kjelleberg, Lehninger, Marshall, Mas, Nikovskaya, Norbert Pfennig, Northcote, Northcote, Northcote, Ofek, Oliver, Oliver, Overmann, Overmann, Overmann, Parker, Pfennig, Reed, Rosenberg, Siefert, Takakuwa, Tilzer, Walsby, Walsby   +43 more
core   +1 more source

Inert Catalytic Sites Unlocked by Micropollutants for Rapid Water Decontamination with Near‐Complete Chemical Utilization

Advanced Materials, EarlyView.
Micropollutants can act as molecular triggers that activate a newly designed and chemically inert Fenton‐like PKU‐24 catalyst for on‐demand singlet oxygen generation from peroxymonosulfate (PMS), enabling nearly complete peroxide utilization and selective micropollutant removal from complex real‐world wastewater.
Yu‐Hang Li, Mingyi Liu, Yuanhao Li, Yaran Bai, Fu‐Xue Wang, Xiaoyi Hu, Xiaoguang Duan, Haodong Ji   +7 more
wiley   +1 more source

ISOLATION AND PURIFICATION OF GLUCOSYLTRANSFERASE FROM MUTANS STREPTOCOCCUS SOBRINUS (SEROTYPE G) LOCAL ISOLATE

The Iraqi Journal of Medical Sciences, 2016
Background: Glucosyltransferase is an extracellular enzyme produced by mutans streptococci responsible for polymerizing the glucose moiety of sucrose to form glucan.
Nada H. Al-Mudallal, Essam F. Al-Jumaily, Nidhal Abdul Muhymen, Abd Al- Wahid Al-Shaibany   +3 more
doaj   +6 more sources

Purification of bovine pancreatic glucagon as a by-product of insulin production

Brazilian Journal of Medical and Biological Research, 1997
A process for purifying bovine pancreatic glucagon as a by-product of insulin production is described. The glucagon-containing supernatant from the alkaline crystallization of insulin was precipitated using ammonium sulfate and isoelectric precipitation.
A.S.R. Andrade, L. Vilela, H. Tunes
doaj   +1 more source

Analyzing peptides and proteins by mass spectrometry: principles and applications in proteomics [PDF]

, 2012
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32166The study of proteins has been a key element in biomedicine and biotechnology because of their important role in cell functions or enzymatic activity. Cells are the basic unit of living
Estanyol i Ullate, Josep Maria, Fernández Vidal, Irene, Fidalgo, Maria José, Olmedo Casas, Eva   +3 more
core   +1 more source

Synthesis and application of hypercrosslinked polymers with weak cation-exchange character for the selective extraction of basic pharmaceuticals from complex environmental water samples [PDF]

, 2010
The synthesis of high specific surface area sorbents (HXLPP-WCX) in the form of hypercrosslinked polymer microspheres with narrow particle size distributions, average particle diameters around 6 µm, and weak cation exchange (WCX) character, is described.
Borrull, F., Bratkowska, D., Cormack, P.A.G., Fontanals, N., Marcé, R.M., Sherrington, D.C.   +5 more
core   +1 more source