Results 91 to 100 of about 990,772 (304)

4-t-Butylbenzylation of carboxylic acid for GC–MS analysis

SN Applied Sciences, 2020
We report a 4-t-butylbenzyl derivatization for the analysis of carboxylic acids by GC–MS (EI). Carboxylic acids were analyzed as a 4-t-butylbenzyl ester after the derivatization with 4-t-butylbenzyl bromide. On the mass spectra of 4-t-butylbenzyl ester, [
Shinji Tsunoi, Nao Yamamoto, Tomohiro Yasuhisa, Riko Akehi, Itaru Suzuki, Ikuya Shibata   +5 more
doaj   +1 more source

Seasonal variations of carboxylic acids and their contributions to the rainwater acidity: A case study of Guiyang and Shangzhong, China

, 2010
Low molecule weight carboxylic acids are ubiquitous and important chemical constituents in the troposphere. Seven carboxylic acids in the rainwater of Guiyang and Shangzhong were simultaneously determined by ion chromatography from April 2006 to April ...
Lee XinQing, Xu Gang, Huang DaiKuan, Lue YingChun, Chen YingJun   +4 more
core  

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

Advanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

Enantioselective Sensing of Chiral Carboxylic Acids

, 2016
A chiral 1,8-diacridylnaphthalene-derived fluorosensor has been prepared and used for enantioselective sensing of a broad variety of chiral carboxylic acids including amino acids, aliphatic acids, arylalkanoic acids, and halogenated carboxylic acids ...
Christian Wolf (385271), Xuefeng Mei (1444516)   +1 more
core   +3 more sources

Biomimetic Core–Shell Liposome Nanoparticles Deplete Lipoproteins and Enhance the Purity of Extracellular Vesicles from Human Blood

Advanced Functional Materials, EarlyView.
Lipoprotein‐mimicking nanoparticles (SL‐NPs), comprising Fe3O4@SiO2 cores coated with liposomal bilayers, selectively capture lipoproteins through protein corona formation. The resulting SL‐NP‐lipoprotein complexes can be removed by low‐speed centrifugation, thereby enhancing the purity of small extracellular vesicles (sEVs) isolated from human serum ...
Man‐Di Wang, Andrew J. Perciaccante, David Inman, Bong Hwan Sung, Alissa M. Weaver, Suzanne M. Ponik, Ying Ge, Song Jin   +7 more
wiley   +1 more source

CARBOXYLIC ACIDS OF HERB OF THYMUS CRETACEUS KLOK. ET SCHOST

Фармация и фармакология (Пятигорск), 2015
We have studied carboxylic acids of the herb of Thymus cretaceus Klok. et Schost which is widespread on a territory of some regions (Belgorod, Voronezh).
V. N. Bubenchikova, J. A. Starchak
doaj   +1 more source

A Holistic Platform Approach for Developing Robust Pulmonary mRNA Delivery: Integrating Novel Phenolic Acid‐Derived Ionizable Lipids and Device Engineering

Advanced Functional Materials, EarlyView.
An integrated pulmonary mRNA delivery platform combining novel biodegradable syringic acid‐derived ionizable lipids, design‐of‐experiments formulation optimization, and vibrating‐mesh nebulizer engineering enabled stable aerosolization and efficient lung delivery.
Neha Kaushal, Younan Ma, Asad Khanmohammed, Dipen Parande, Hanming Zhang, Saket Dolare, Juliet Chen, Apiwat Wangweerawong, Saswata Karmakar, Hongfeng Deng, Frank Koppenhagen, Shraddha Sharma, Eric Reyes, Sherry He, Lianne Boeglin, Caroline Woo, Azadeh Paksa, Ayed Allawzi, Anusha Dias, Gregory Troiano, Shrirang Karve, Frank DeRosa   +21 more
wiley   +1 more source

Catalytic enantioselective addition of organometallics to unprotected carboxylic acids

Nature Communications, 2019
Unprotected carboxylic acids are classically deemed to be unsusceptible to conjugated additions due to acid-base neutralization. Here, the authors show that the use of an appropriate Lewis acid allows the catalytic addition of organometallics to ...
Xingchen Yan, Syuzanna R. Harutyunyan
doaj   +1 more source

Co(II)-Catalyzed Regioselective Cross-Dehydrogenative Coupling of Aryl C-H Bonds with Carboxylic Acids

, 2017
A cobalt(II)-catalyzed regioselective aryl C-H bond oxygenation between arenes and aryl or aliphatic carboxylic acids under bidendate-chelation assistance is developed.
Deng, YF, Zeng, W (reprint author), South China Univ Technol, Sch Chem & Chem Engn, Key Lab Funct Mol Engn Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China., Xie, HS, Lu, XX, Zeng, W, Jiang, HF, Lan, JY   +6 more
core   +1 more source

Hydrogel‐Based 3D‐Printed Anthropomorphic Breast Phantom for Emulating Mechanical and Dielectric Properties of Mammary Tissue. Applications in Microwave Imaging

Advanced Functional Materials, EarlyView.
A 3D‐printable breast phantom is developed using patient‐derived MRI data and hydrogels that replicate the dielectric properties of healthy and cancerous tissues. Mechanical and dielectric characterization confirm its suitability for microwave imaging.
Carlos M. Andreu, Daniel Álvarez Sánchez‐Bayuela, Gianluigi Tiberi, Eliana Canicattì, Agostino Monorchio, Ester Vázquez   +5 more
wiley   +1 more source