Distribution of diet quality among older Chinese people (%).

<p>Distribution of diet quality among older Chinese people (%).</p

DBI-07 score (Mean and SD) by predictor factors.

<p>DBI-07 score (Mean and SD) by predictor factors.</p

Two Amino-Decorated Metal–Organic Frameworks for Highly Selective and Quantitatively Sensing of Hg^II and Cr^VI in Aqueous Solution

Two amino-decorated metal–organic frameworks have been constructed, which are the rare examples of MOF-based fluorescent probes targeting environmentally relevant guest species, such as Hg (II) and Cr (VI) ions in aqueous solution, with high selectivity and sensitivity. The possible sensing mechanism is also discussed

Iron-related dietary pattern increases the risk of poor cognition

High iron intake has been shown to be associated with poor cognition. We aimed to examine the association between iron-related dietary pattern (IDP) and cognitive function in Chinese adults. Longitudinal study data from the China Health and Nutrition Survey (CHNS) during 1991–2006 were used (N = 4852, ≥55 years old). Dietary intake was obtained from a 3-day food record during home visits. Reduced rank regression was used to construct IDP with iron intake as a response variable. Cognitive function was assessed in 1997, 2000, 2004 and 2006. Multivariable mixed linear regression and logistic regression were used in the analyses. IDP was characterised by high intake of fresh vegetable, wheat, legume, beverage, offal, rice and whole grain. High IDP intake was associated with poor cognition. In fully adjusted models, across the quartiles of IDP, the odds ratio (95% CI) for poor cognitive function were: 1.00, 1.06 (0.86–1.30), 1.24 (0.99–1.54), and 1.50 (1.17–1.93), respectively. There was a borderline significant interaction between IDP and meat intake (p interaction 0.085). The association between high IDP and poor cognition was only observed among those with no or low intake of meat. With the adjustment of carbohydrate or iron intake, the IDP and cognition association became non-significant. IDP was positively associated with lead intake. The association between IDP and poor cognition was partly mediated by lead intake. Iron-related dietary pattern is associated with poor cognition in Chinese adults, partly due to high intake of carbohydrate, iron and lead.Other Information Published in: Nutrition Journal License: http://creativecommons.org/licenses/by/4.0/See article on publisher's website: http://dx.doi.org/10.1186/s12937-019-0476-9</p

Additional file 3: of Dietary pattern transitions, and the associations with BMI, waist circumference, weight and hypertension in a 7-year follow-up among the older Chinese population: a longitudinal study

Marginal mean of dietary patterns at baseline by three groups (N=2197). (PDF 125 kb

Two Amino-Decorated Metal–Organic Frameworks for Highly Selective and Quantitatively Sensing of Hg^II and Cr^VI in Aqueous Solution

Two amino-decorated metal–organic frameworks have been constructed, which are the rare examples of MOF-based fluorescent probes targeting environmentally relevant guest species, such as Hg (II) and Cr (VI) ions in aqueous solution, with high selectivity and sensitivity. The possible sensing mechanism is also discussed

Additional file 2: of Dietary pattern transitions, and the associations with BMI, waist circumference, weight and hypertension in a 7-year follow-up among the older Chinese population: a longitudinal study

The association between dietary pattern and BMI, Wt, WC and hypertension for participants in 2004 and 2011. (PDF 179 kb

Oriented Design of Transition-Metal-Oxide Hollow Multishelled Micropolyhedron Derived from Bimetal–Organic Frameworks for the Electrochemical Detection of Multipesticide Residues

Transition-metal oxides (TMOs) with a hollow multishelled structure have emerged as highly potential materials for high-performance electrochemical sensing, benefiting from their superior electronic conductivity, exceptionally large specific surface area, excellent stability, and electrochemistry properties. In particular, binary TMOs are expected to outperform unitary TMOs due to the synergistic effect of the different metals. Herein, MnCo2O4.5 hollow quadruple-shelled porous micropolyhedrons (MnCo2O4.5 HoQS-MPs) were prepared and employed to construct an ultrasensitive sensing platform for a multipesticide assay. Profiting from complex hollow interior structures and abundant active sites, the MnCo2O4.5 HoQS-MPs manifest outstanding electrochemical properties as electrode materials for the pesticide assay. The MnCo2O4.5 HoQS-MP-based biosensor demonstrated remarkable performance for monocrotophos, methamidophos, and carbaryl detection, with wide linear ranges, as well as low detection limits. This work unveils a new pathway for the ultrasensitive detection of pesticides and demonstrates tremendous potential for detecting other environmentally deleterious chemicals

Metal–Organic Frameworks Constructed from a New Thiophene-Functionalized Dicarboxylate: Luminescence Sensing and Pesticide Removal

A family of thiophene-based metal–organic frameworks (MOFs), [Zn­(L)­(BBI)·(H₂O)₂] (<b>1</b>) (BBI = 1,1′-(1,4-butanediyl)­bis­(imidazole)) and [Cd­(L)­(TPOM)_0.75]·<i>x</i>S (<b>2</b>) (TPOM = tetrakis­(4-pyridyloxy-methylene) methane, S represents noncoordinated solvent molecules) was constructed by employing a new linear thiophene-functionalized dicarboxylic acid (benzo-(1,2;4,5)-bis­(thiophene-2′-carboxylic acid, H₂L) to assemble with d¹⁰ ions in the presence of a flexible ancillary ligand under solvothermal conditions, which exhibit diverse structures. Most strikingly, both compounds <b>1</b> and <b>2</b> could be efficient luminescent sensory materials that are highly selective and sensitive to environmental contaminants, especially for Hg­(II), Cu­(II), Cr­(VI), and salicylaldehyde, and yet remain unaffected by other molecules that may coexit. Furthermore, this is the first report on MOF-based sensors capable of recyclable detection of Hg­(II), Cr­(VI), and salicylaldehyde so far. The luminescent sensing mechanism was studied in detail as well. In addition, compound <b>2</b> is one of the rare examples of high-performance MOFs trapping 2,4-dichlorophenol from the wasted methanol solution

Metal–Organic Frameworks Constructed from a New Thiophene-Functionalized Dicarboxylate: Luminescence Sensing and Pesticide Removal

A family of thiophene-based metal–organic frameworks (MOFs), [Zn­(L)­(BBI)·(H₂O)₂] (<b>1</b>) (BBI = 1,1′-(1,4-butanediyl)­bis­(imidazole)) and [Cd­(L)­(TPOM)_0.75]·<i>x</i>S (<b>2</b>) (TPOM = tetrakis­(4-pyridyloxy-methylene) methane, S represents noncoordinated solvent molecules) was constructed by employing a new linear thiophene-functionalized dicarboxylic acid (benzo-(1,2;4,5)-bis­(thiophene-2′-carboxylic acid, H₂L) to assemble with d¹⁰ ions in the presence of a flexible ancillary ligand under solvothermal conditions, which exhibit diverse structures. Most strikingly, both compounds <b>1</b> and <b>2</b> could be efficient luminescent sensory materials that are highly selective and sensitive to environmental contaminants, especially for Hg­(II), Cu­(II), Cr­(VI), and salicylaldehyde, and yet remain unaffected by other molecules that may coexit. Furthermore, this is the first report on MOF-based sensors capable of recyclable detection of Hg­(II), Cr­(VI), and salicylaldehyde so far. The luminescent sensing mechanism was studied in detail as well. In addition, compound <b>2</b> is one of the rare examples of high-performance MOFs trapping 2,4-dichlorophenol from the wasted methanol solution