Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1950 1
1952 1
1953 2
1958 1
1960 1
1961 1
1962 1
1963 2
1964 3
1965 3
1966 3
1967 2
1968 5
1969 5
1970 7
1971 8
1972 8
1973 10
1974 6
1975 7
1976 14
1977 7
1978 3
1979 15
1980 12
1981 11
1982 9
1983 8
1984 19
1985 12
1986 15
1987 21
1988 19
1989 22
1990 28
1991 43
1992 15
1993 29
1994 43
1995 26
1996 23
1997 31
1998 29
1999 36
2000 50
2001 44
2002 62
2003 54
2004 64
2005 70
2006 73
2007 63
2008 51
2009 55
2010 68
2011 71
2012 62
2013 70
2014 73
2015 76
2016 80
2017 64
2018 72
2019 90
2020 105
2021 95
2022 91
2023 104
2024 32

Text availability

Article attribute

Article type

Publication date

Search Results

2,141 results

Results by year

Filters applied: . Clear all
Page 1
Identification and characterization of organic and glycosidic acids in the crude resin glycoside fraction of Ipomoea alba seeds.
Misuda N, Uechi K, Yasuda S, Miyashita H, Yoshimitsu H, Tsuchihashi R, Okawa M, Kinjo J, Ono M. Misuda N, et al. Carbohydr Res. 2024 May 3;540:109142. doi: 10.1016/j.carres.2024.109142. Online ahead of print. Carbohydr Res. 2024. PMID: 38718742
Resin glycosides act as laxatives in crude drugs derived from plants of the Convolvulaceae family. ...The acidic hydrolysis of the glycosidic acid fraction resulted in the isolation of 11S-hydroxytetradecanoic and 11S-hydroxyhexadecanoic acids as hydroxyl fatty acid compon
Resin glycosides act as laxatives in crude drugs derived from plants of the Convolvulaceae family. ...The acidic hydrolysis of the gl
Chemical Composition of Volatile and Extractive Components of Canary (Tenerife) Propolis.
Isidorov VA, Dallagnol AM, Zalewski A. Isidorov VA, et al. Molecules. 2024 Apr 19;29(8):1863. doi: 10.3390/molecules29081863. Molecules. 2024. PMID: 38675683 Free PMC article.
The volatile emissions also contain C(1)-C(6) aliphatic acids and C(2)-C(8) alcohols, as well as their esters. Peaks of 138 organic C(3)-C(34) compounds were recorded in the chromatograms of the ether extracts of the studied propolis. ...
The volatile emissions also contain C(1)-C(6) aliphatic acids and C(2)-C(8) alcohols, as well as their esters. Peaks of 138 organic C …
Removal of Cu (II) by ion exchange resin and its re-utilization of the residual solution from the distilled Lycium barbarum wine.
Dang Y, Zhang QA, Zhao ZH. Dang Y, et al. Food Chem X. 2024 Apr 12;22:101380. doi: 10.1016/j.fochx.2024.101380. eCollection 2024 Jun 30. Food Chem X. 2024. PMID: 38665633 Free PMC article.
The results indicate that the Cu (II) was effectively removed by ceramic membrane combined with the D401 resin. Compared with finished brandy, the recombined brandy contains high contents of polysaccharides, phenols and flavonoids, thus contributing to the improvement of a …
The results indicate that the Cu (II) was effectively removed by ceramic membrane combined with the D401 resin. Compared with finishe …
Breaking Cycles: Saponification-Enhanced NMR Fingerprint Matching for the Identification and Stereochemical Evaluation of Cyclic Lipodepsipeptides from Natural Sources.
Muangkaew P, Prasad D, De Roo V, Verleysen Y, Zhou L, De Mot R, Höfte M, Madder A, Geudens N, Martins J. Muangkaew P, et al. Chemistry. 2024 Apr 22:e202400667. doi: 10.1002/chem.202400667. Online ahead of print. Chemistry. 2024. PMID: 38647356
In combination with total synthesis of a small library of configurational CLiP congeners this also allows unambiguous determination of stereochemistry, facilitating structure-activity relationship studies and enabling three-dimensional structure determination. However, the on- …
In combination with total synthesis of a small library of configurational CLiP congeners this also allows unambiguous determination of stere …
Interaction of olive oil-based propolis and caffeic acid phenethyl ester with methylprednisolone used in the treatment of human acute myeloid leukemia.
Dogan H, Ozcimen AA, Silici S. Dogan H, et al. Mol Biol Rep. 2024 Apr 20;51(1):559. doi: 10.1007/s11033-024-09493-7. Mol Biol Rep. 2024. PMID: 38643306
The objective of this study was to examine the impact of olive oil-based propolis (OEP) and caffeic acid phenethyl ester (CAPE) on the treatment of acute myeloid leukemia, as well as to determine if they exhibit a synergistic effect when combined with the therapeutic suppo …
The objective of this study was to examine the impact of olive oil-based propolis (OEP) and caffeic acid phenethyl ester (CAPE) on th …
Storage and time course effects on the quality of oil extracted from Phyllanthus amarus Schumach and Annona muricata Linn and their antidiabetic potentials.
Ogunjinmi OE, Oriyomi VO, Olaogun RA, Gbadegesin AT. Ogunjinmi OE, et al. BioTechnologia (Pozn). 2024 Mar 29;105(1):41-53. doi: 10.5114/bta.2024.135641. eCollection 2024. BioTechnologia (Pozn). 2024. PMID: 38633891 Free PMC article.
Oils from both plants contained tannins, flavonoids, alkaloids, steroids, glycosides, terpenoids, phlobotannins, resins, reducing sugar, phenols, and saponins in different proportions. ...FT-IR characterization of the oils revealed the presence of carboxylic acid, alkyl, a …
Oils from both plants contained tannins, flavonoids, alkaloids, steroids, glycosides, terpenoids, phlobotannins, resins, reducing sug …
General Installation of (4H)-Imidazolone cis-Amide Bioisosteres Along the Peptide Backbone.
Wall BJ, Sharma KK, O'Brien EA, Donovan A, VanVeller B. Wall BJ, et al. J Am Chem Soc. 2024 May 1;146(17):11648-11656. doi: 10.1021/jacs.3c13825. Epub 2024 Apr 17. J Am Chem Soc. 2024. PMID: 38629317
Herein, we present a tandem amidine installation and cyclization with an adjacent ester to yield (4H)-imidazolone products. Using amino acid building blocks, we can access the first examples of alpha-chiral imidazolones that have been previously inaccessible. Additionally, …
Herein, we present a tandem amidine installation and cyclization with an adjacent ester to yield (4H)-imidazolone products. Using ami …
Characterization of Low- and High-Velocity Responses of Basalt-Epoxy and Basalt-Elium Composites.
Llanos JJ, Wang K, Taheri F. Llanos JJ, et al. Polymers (Basel). 2024 Mar 28;16(7):926. doi: 10.3390/polym16070926. Polymers (Basel). 2024. PMID: 38611184 Free PMC article.
Currently, fiber-reinforced polymer composites (FRPs) used for demanding structural applications predominantly utilize carbon, glass, and aramid fibers embedded in epoxy resin, albeit occasionally polyester and vinyl ester resins are also used. ...
Currently, fiber-reinforced polymer composites (FRPs) used for demanding structural applications predominantly utilize carbon, glass, and ar …
Closed-loop recyclability of a biomass-derived epoxy-amine thermoset by methanolysis.
Wu X, Hartmann P, Berne D, De Bruyn M, Cuminet F, Wang Z, Zechner JM, Boese AD, Placet V, Caillol S, Barta K. Wu X, et al. Science. 2024 Apr 12;384(6692):eadj9989. doi: 10.1126/science.adj9989. Epub 2024 Apr 12. Science. 2024. PMID: 38603486
Epoxy resin thermosets (ERTs) are an important class of polymeric materials. ...We present the synthesis and closed-loop recycling of a fully lignocellulose-derivable epoxy resin (DGF/MBCA), prepared from dimethyl ester of 2,5-furandicarboxylic acid (DMFD), 4 …
Epoxy resin thermosets (ERTs) are an important class of polymeric materials. ...We present the synthesis and closed-loop recycling of …
Detection and Identification of Various Microplastics in Different Orthodontic Adhesives.
Divakar A, Sundari SK, Jeyachandran S. Divakar A, et al. Cureus. 2024 Feb 29;16(2):e55221. doi: 10.7759/cureus.55221. eCollection 2024 Feb. Cureus. 2024. PMID: 38558572 Free PMC article.
FTIR results showed the presence of several major functional groups, including hydroxyl, amine, ester, fluoro, and halo groups. Conclusion When contrasted with the quantity of microplastic waste generated by other sectors like the textile, cosmetic, and fishing industries, …
FTIR results showed the presence of several major functional groups, including hydroxyl, amine, ester, fluoro, and halo groups. Concl …
2,141 results