Michael A. Brook
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View article: Sulfur Chemistry in Early Star-forming Cores: A Non-LTE Analysis of SO<sub>2</sub> and SO
Sulfur Chemistry in Early Star-forming Cores: A Non-LTE Analysis of SO<sub>2</sub> and SO Open
The chemical behavior of sulfur in the interstellar medium (ISM), particularly in the dense regions where stars form, is still far from being well understood. Questions such as which is the main sulfur reservoir in the ISM remain unanswere…
View article: Sulfur-bearing molecules in a sample of early star-forming cores
Sulfur-bearing molecules in a sample of early star-forming cores Open
Aims . The sulfur content in dense molecular regions is highly depleted in comparison to diffuse clouds. The reason for this phenomenon is unclear, and it is therefore necessary to carry out observational studies of sulfur-bearing species …
View article: Sulfur-bearing molecules in a sample of early star-forming cores
Sulfur-bearing molecules in a sample of early star-forming cores Open
The sulfur content in dense molecular regions of the interstellar medium is highly depleted in comparison to diffuse clouds. The reason of this phenomenon is unclear, thus it is necessary to carry out observational studies of sulfur-bearin…
View article: Generative AI To Recognize Response Fabrication in PTSD
Generative AI To Recognize Response Fabrication in PTSD Open
Fabricating symptoms of Post-Traumatic Stress Disorder (PTSD) can hinder accurate clinical assessments via structured diagnostic interviews1,2. Symptom simulation or fabrication is a known problem3,4 in PTSD assessments, with diverse motiv…
View article: Correction: Cleaning steel by devulcanizing rubber from used automotive tires
Correction: Cleaning steel by devulcanizing rubber from used automotive tires Open
Correction for ‘Cleaning steel by devulcanizing rubber from used automotive tires' by Yang Chen et al. , RSC Sustain. , 2023, 1 , 2006–2013, https://doi.org/10.1039/D3SU00218G.
View article: 52 Internalizing Psychopathology is Highly Related to Subjective Cognitive Impairment and the Discrepancy Between Objective and Subjective Cognitive Impairment: A Preliminary Cross-Sectional Study.
52 Internalizing Psychopathology is Highly Related to Subjective Cognitive Impairment and the Discrepancy Between Objective and Subjective Cognitive Impairment: A Preliminary Cross-Sectional Study. Open
Objective: Eliciting perceived cognitive complaints is a routine part of a clinical neuropsychological evaluation, presumably because complaints are informative of underlying pathology. However, there is no strong empirical support that su…
View article: Copper crosslinked silicone elastomers in RGB colors: degradable on demand
Copper crosslinked silicone elastomers in RGB colors: degradable on demand Open
Increasing demand for fully recyclable polymers has prompted an interest in materials crosslinked via non-covalent interactions. Aggressive depolymerization can cleave backbone SiO bonds to generate linear oils or cyclic monomers from sili…
View article: Perceived cognitive impairment is related to internalizing psychopathology but unrelated to objective cognitive performance among nongeriatric adults presenting for outpatient neuropsychological evaluation
Perceived cognitive impairment is related to internalizing psychopathology but unrelated to objective cognitive performance among nongeriatric adults presenting for outpatient neuropsychological evaluation Open
Objective: This study investigated the relationship between perceived cognitive impairment, objective cognitive performance, and intrapersonal variables thought to influence ratings of perceived cognitive impairment. Method: Study sample c…
View article: Starch/Silicone Elastomers and Foams
Starch/Silicone Elastomers and Foams Open
While the beneficial physical properties of silicone polymers are exploited in many sustainable applications, the high energy requirement for their synthesis compromises to a degree their sustainability. We report a strategy to mitigate th…
View article: Lysine-Based Silicone Surfactants
Lysine-Based Silicone Surfactants Open
Highly efficient silicone surfactants are typically based on polyether hydrophiles. As part of a program to increase the natural content of silicones, we describe the synthesis of silicone surfactants with amino acid hydrophiles (cysteine,…
View article: Antioxidant Silicone Elastomers without Covalent Cross-Links
Antioxidant Silicone Elastomers without Covalent Cross-Links Open
Improved sustainability is associated with elastomers that readily breakdown in the environment at end of life and, as importantly, that can be reprocessed/reused long before end of life arises. We report the preparation of silicone elasto…
View article: Starch-Directed Synthesis of Worm-Shaped Silica Microtubes
Starch-Directed Synthesis of Worm-Shaped Silica Microtubes Open
Many strategies have been adopted to prepare silica materials with highly controlled structures, typically using sol–gel chemistry. Frequently, the alkoxysilanes used in sol–gel chemistry are based on monoalcohols, e.g., Si(OEt)4. The stru…
View article: Functional silicone oils and elastomers: new routes lead to new properties
Functional silicone oils and elastomers: new routes lead to new properties Open
Simple organic chemistry can be used to introduce, into silicone elastomers, organic/natural materials that deliver functionality in the form of new, useful properties including enhanced sustainability.
View article: Cleaning steel by devulcanizing rubber from used automotive tires
Cleaning steel by devulcanizing rubber from used automotive tires Open
Steel from used automobile tires can be rendered suitable for recycling by stripping rubber contamination using reductive silylation with silicones.
View article: Acrylated soybean oil: a key intermediate for more sustainable elastomeric materials from silicones
Acrylated soybean oil: a key intermediate for more sustainable elastomeric materials from silicones Open
The myriad benefits of silicone polymers can be made more sustainable by replacing much of the elastomer body with acrylated soybean oil. The crosslinked copolymers are simply made without catalysts using an aza-Michael reaction.
View article: Ascorbic Acid-Modified Silicones: Crosslinking and Antioxidant Delivery
Ascorbic Acid-Modified Silicones: Crosslinking and Antioxidant Delivery Open
Vitamin C is widely used as an antioxidant in biological systems. The very high density of functional groups makes it challenging to selectively tether this molecule to other moieties. We report that, following protection of the enediol as…
View article: Chelating Silicone Dendrons: Trying to Impact Organisms by Disrupting Ions at Interfaces
Chelating Silicone Dendrons: Trying to Impact Organisms by Disrupting Ions at Interfaces Open
The viability of pathogens at interfaces can be disrupted by the presence of (cationic) charge and chelating groups. We report on the synthesis of silicone dendrimers and linear polymers based on a motif of hexadentate ligands with the abi…
View article: Antioxidant silicone oils from natural antioxidants
Antioxidant silicone oils from natural antioxidants Open
Natural antioxidants, such as vitamin E and eugenol, once grafted to silicone oils maintain their antioxidant activity and dilute the quantity of silicone needed for a given application.
View article: Naturally Derived Silicone Surfactants Based on Saccharides and Cysteamine
Naturally Derived Silicone Surfactants Based on Saccharides and Cysteamine Open
Silicone surfactants are widely used in many industries and mostly rely on poly(ethylene glycol) (PEG) as the hydrophile. This can be disadvantageous because commercial PEG examples vary significantly in polydispersity—constraining control…
View article: Elastomeric Silicone Sponges for Bleach Delivery
Elastomeric Silicone Sponges for Bleach Delivery Open
Topical disinfection protocols to inactivate organisms, particularly on high contact surfaces, have become increasingly important. A classical oxidative agent, sodium hypochlorite (bleach), has many benefits, but can be problematic during …
View article: Spatially Controlled Highly Branched Vinylsilicones
Spatially Controlled Highly Branched Vinylsilicones Open
Branched silicones possess interesting properties as oils, including their viscoelastic behavior, or as precursors to controlled networks. However, highly branched silicone polymers are difficult to form reliably using a “grafting to” stra…
View article: Silicone Polymers—Celebrating 80 Years of the Direct Process
Silicone Polymers—Celebrating 80 Years of the Direct Process Open
The Direct Process, also denoted the Rochow Process, and the Müller–Rochow Process, is the most common industrial method for preparing organosilicon compounds, and is the basis of the silicone industry. It was first reported independently …
View article: When Attempting Chain Extension, Even Without Solvent, It Is Not Possible to Avoid Chojnowski Metathesis Giving D3
When Attempting Chain Extension, Even Without Solvent, It Is Not Possible to Avoid Chojnowski Metathesis Giving D3 Open
A simple, mild and efficient method to prepare HSi- or HOSi-telechelic, high-molecular-weight polydimethylsiloxane polymers (to 41,600 g·mol−1) using the one-shot hydrolysis of MHMH is reported; titration of the water allowed for higher mo…
View article: Synergistic effect of carotenoid and silicone-based additives for photooxidatively stable organic solar cells with enhanced elasticity
Synergistic effect of carotenoid and silicone-based additives for photooxidatively stable organic solar cells with enhanced elasticity Open
Bifunctional additive design for OPV provides joint improvement in (1) device lifetime via carotenoid and (2) flexibility via silicone.
View article: Reliable Condensation Curing Silicone Elastomers with Tailorable Properties
Reliable Condensation Curing Silicone Elastomers with Tailorable Properties Open
The long-term stability of condensation curing silicone elastomers can be affected by many factors such as curing environment, cross-linker type and concentration, and catalyst concentration. Mechanically unstable silicone elastomers may l…
View article: Psychopathy is associated with fear-specific reductions in neural activity during affective perspective-taking
Psychopathy is associated with fear-specific reductions in neural activity during affective perspective-taking Open
Psychopathic individuals are notorious for their callous disregard for others' emotions. Prior research has linked psychopathy to deficits in affective mechanisms underlying empathy (e.g., affective sharing), yet research relating psychopa…
View article: Energy‐Dissipating Polymeric Silicone Surfactants
Energy‐Dissipating Polymeric Silicone Surfactants Open
Materials that are able to withstand impact loadings by dissipating energy are crucial for a broad range of different applications, including personal protective applications. Shear‐thickening fluids (STFs) are often used for this purpose,…
View article: Catalyst Free Silicone Sealants That Cure Underwater
Catalyst Free Silicone Sealants That Cure Underwater Open
Silicone sealants and adhesives are widely used to prevent the ingress of water. However, silicones must normally be cured in air, as excess water inhibits or prevents cure from occurring. It is reported that aqueous solutions of the aliph…
View article: Challenges in the development of reliable silicone elastomer coatings
Challenges in the development of reliable silicone elastomer coatings Open
Silicone elastomers are materials with good thermal and oxidation stability, flexibility, hydrophobicity, and low surface energy. Due to these properties, they find use in broad range of applications in electronic, medical, automobile, aer…