A comparison of freeze- and air-dried chitosan salicylaldehyde/calcium oxide biocomposites for optimized removal of acid red 88 dye.

Chitosan salicylaldehyde/calcium oxide nanoparticle (CS-SL/CaO) was synthesized by hydrothermal process and isolated via different drying processes, namely, air-drying (AD) and freeze-drying (FD). The physicochemical properties of freeze-dried CS-SL/CaO nanoparticle (CS-SL/CaO-FD) and air-dried CS-SL/CaO nanoparticle (CS-SL/CaO-AD) were compared. In particular, the adsorption properties reveal that the specific surface area of CS-SL/CaO-FD increased by ca.

Understanding constipation as a geriatric syndrome.

Constipation is common among older adults and significantly impacts their quality of life (QoL). Prior studies have extensively detailed constipation, but conceptualization of constipation as a geriatric syndrome is lacking. In this review, we provide an overview of constipation in the geriatric population and conceptualize constipation as a geriatric syndrome given its high prevalence, under-recognized status, and association with poor QoL and adverse outcomes among older adults.

Hybrid Chitosan Biosorbents: Tunable Adsorption at Surface and Micropore Domains.

Herein, we report a study that provides new insight on the knowledge gaps that relate to the role of biopolymer structure and adsorption properties for chitosan adsorbents that are cross-linked with glutaraldehyde. The systematic modification of chitosan cross-linked with glutaraldehyde (CG) and its quaternized forms (QCG) was studied in relation to the reaction conditions: mole ratios of reactants and pH conditions. Complementary adsorbent characterization employed C NMR/FTIR spectroscopy, TGA and DSC, point-zero-charge (PZC), solvent swelling, and sorption studies using selected dye probes.

Genetic vulnerability and adverse mental health outcomes following mild traumatic brain injury: a meta-analysis of CENTER-TBI and TRACK-TBI cohorts.

Background: Post-traumatic stress disorder (PTSD) and depression are common after mild traumatic brain injury (mTBI), but their biological drivers are uncertain. We therefore explored whether polygenic risk scores (PRS) derived for PTSD and major depressive disorder (MDD) are associated with the development of cognate TBI-related phenotypes.

Methods: Meta-analyses were conducted using data from two multicenter, prospective observational cohort studies of patients with mTBI: the CENTER-TBI study (ClinicalTrials.

Primary Care Screening for Nonalcoholic Fatty Liver Disease Among People With HIV in the United States: A Real-World Provider Survey.

Nonalcoholic fatty liver disease (NAFLD) is highly prevalent in people with HIV (PWH) and increases the risk of hepatic fibrosis and hepatocellular carcinoma. We sent an online survey to providers of the American Academy of HIV Medicine. Of respondents (n = 214, 8% response rate), 65% reported screening for NAFLD in PWH, with 28% routinely screening all patients.