Publications by authors named "Ka-Lun Wong"

Background: The Baby-Friendly Hospital Initiative requires hospitals to pay market price for infant formula. No studies have specifically examined the effect of hospitals paying for infant formula on breastfeeding mothers' exposure to Baby-Friendly steps.

Objectives: To investigate the effect of hospitals implementing a policy of paying for infant formula on new mothers' exposure to Baby-Friendly steps and examine the effect of exposure to Baby-Friendly steps on breastfeeding rates.

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Lubricant oils take significant part in current health and environmental considerations since they are an integral and indispensable component of modern technology. Antioxidants are probably the most important additives used in oils because oxidative deterioration plays a major role in oil degradation. Zeolite nanoparticles (NPs) have been proven as another option as green antioxidants in oil formulation.

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Although breastfeeding initiation rates have increased substantially in many developed countries over the past several decades, breastfeeding duration and exclusivity remain suboptimal. In the antenatal period, both group and individual education interventions have been implemented to improve breastfeeding. The purpose of this review was to compare the effectiveness of group and individual antenatal professional education on breastfeeding exclusivity and duration.

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The efficiency of zeolite X nanocrystals (FAU-type framework structure) containing different extra-framework cations (Li(+), Na(+), K(+), and Ca(2+)) in slowing the thermal oxidation of palm oil is reported. The oxidation study of palm oil is conducted in the presence of zeolite nanocrystals (0.5 wt %) at 150 °C.

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Objective: To investigate the effect of public hospitals in Hong Kong not accepting free infant formula from manufacturers on in-hospital formula supplementation rates and breast-feeding duration.

Design: Prospective cohort study.

Setting: In-patient postnatal units of four public hospitals in Hong Kong.

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Objective: To evaluate the effectiveness of a professional one-to-one antenatal breastfeeding support and education intervention on the exclusivity and duration of breastfeeding.

Methods: A total of 469 primiparous women who attended the antenatal clinics of two geographically distributed public hospitals in Hong Kong were randomized to receive either standard antenatal care or a one-to-one antenatal breastfeeding support and education session. The primary outcome was the prevalence of exclusive breastfeeding at 6 weeks postpartum.

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One-step colloidal synthesis of subnanometer CdS clusters in hydrophobic MFI-type zeolite crystals in the presence of 3-mercaptopropyl-trimethoxysilane (MPS), cadmium precursor, and tetrapropylammonium hydroxide (TPAOH) is performed. MPS is used as the bifunctional agent, as it hydrolyzes fast, cross-links with the silica framework, and provides thiol groups to anchor Cd(2+), and subsequently forms CdS clusters. The MFI crystals with the thiol groups not only function as a nanochamber for the formation of CdS but also prevent further moisture-induced agglomeration of the clusters.

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