Bio-inspired eutectogels enabled by binary natural deep eutectic solvents (NADESs): Interfacial anti-frosting, freezing-tolerance, and mechanisms

Food Hydrocolloids, Journal Year: 2022, Volume and Issue: 128, P. 107568 - 107568

Published: Feb. 6, 2022

To explore food-grade anti-freezing strategies for the frozen food industry, three bio-inspired binary natural deep eutectic solvents (NADESs) comprising proline, glucose, and sorbitol were prepared. Besides, through gelling NADESs, two-dimensional planar film-like eutectogels (PG53, PG11, PS11) showing sandwich-like structures fabricated, of which basic characteristics, anti-frosting capacities freezing-tolerance investigated. Results indicated that possessing plenty hydroxy groups within systems could show more hydrophilic surfaces (47.6°–55.7°) as compared with control group (69.1°). PS11 showed best capacity, exhibiting only 36.31% frost-covered area after 120 min under extreme conditions, probably due to its rugged surface spikier hill-like profiles. For freezing-tolerance, all stay flexible at −40 °C stable mechanical strengths before (stress: 3.1–4.4 MPa, strain: 82.6%–104.7%) 2.5–3.9 71.9%–96.5%) temperature fluctuation. Given this, an absorption-inhibition hypothesis was proposed verified by gradient moisture absorption test cooling-heating cyclic test, critical relative humidity (CARH) glass transition (Tg) obtained, suggested firstly absorbed ambient easily (CARH: 49% RH ∼ 55% RH) subsequently inhibited crystallization immobilizing NADESs (Tg: −58.6 −50.5 °C), endowing them great potentials interfacial anti-frosting. It is hoped this work broaden field materials in a greener eco-friendly way.

Language: Английский

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Biology of Stress

Springer eBooks, Journal Year: 2023, Volume and Issue: unknown, P. 93 - 142

Published: Jan. 1, 2023

Language: Английский

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How seasonality influences the thermal biology of lizards with different thermoregulatory strategies: a meta‐analysis

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2023, Volume and Issue: 99(2), P. 409 - 429

Published: Oct. 23, 2023

ABSTRACT Ectotherms that maintain thermal balance in the face of varying climates should be able to colonise a wide range habitats. In lizards, thermoregulation usually appears as variety behaviours buffer external influences over physiology. Basking species rely on solar radiation raise body temperatures and show high thermoregulatory precision. By contrast, do not bask are often constrained by climatic conditions their habitats, thus having lower While much focus has been given effects mean habitat temperatures, relatively less is known about how seasonality affects biology lizards macroecological scale. Considering current climate crisis, assessing cope with temporal variations environmental temperature essential understand better these organisms will fare under change. Activity ( T b ) represent internal an animal measured nature during its active period (i.e. realised niche), preferred pref those selected laboratory gradient lacks costs fundamental niche). Both traits form bulk ecology research studied context seasonality. this study, we used meta‐analysis test seasonal variation differ strategy (basking versus non‐basking). Based 333 effect sizes from 137 species, found varied greater magnitude than across seasons. Variations were influenced seasonality; however, size mediated responses. Specifically, larger subjected , basking endured compared non‐basking species. On other hand, increased regardless size. Thermoregulatory also suggesting behaviour important role mediating responses landscape. After controlling for phylogenetic effects, showed significantly lizard families. Taken together, our results support notion relationship between parameters can taxon trait dependent. Our showcase importance considering ecological behavioural aspects studies. We further highlight systematic, geographical, knowledge gaps research. work benefit who aim more fully shapes ultimately contributing goal elucidating evolution temperature‐sensitive ectotherms.

Language: Английский

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Season, Rather than Soft- or Hard-Release, Has Most Effect on Translocation Outcomes for a Critically Endangered Reptile

Published: Jan. 1, 2025

Language: Английский

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Temperature Manipulation Induces Ecdysis in Lab-Held Rattlesnakes

Ichthyology & Herpetology, Journal Year: 2025, Volume and Issue: 113(2)

Published: May 1, 2025

Language: Английский

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Reduced thermoregulatory ability contributes to increased mortality in urban box turtles (Terrapene spp.)

Journal of Thermal Biology, Journal Year: 2025, Volume and Issue: unknown, P. 104135 - 104135

Published: May 1, 2025

Language: Английский

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Designing a Seasonal Acclimation Study Presents Challenges and Opportunities

Integrative Organismal Biology, Journal Year: 2022, Volume and Issue: 4(1)

Published: Jan. 1, 2022

Organisms living in seasonal environments often adjust physiological capacities and sensitivities response to (or anticipation of) environment shifts. Such morphological adjustments ("acclimation" related terms) inspire opportunities explore the mechanistic bases underlying these adjustments, detect cues inducing elucidate their ecological evolutionary consequences. Seasonal ("seasonal acclimation") can be detected either by measuring of organisms retrieved directly from nature outdoor enclosures) different seasons or less rearing maintained laboratory under conditions that attempt mimic track natural ones. But mimicking is challenging-doing so requires prior natural-history knowledge ecologically relevant body temperature cycles, photoperiods, food rations, social environments, among other variables. We argue traditional laboratory-based usually fail approximate (temperature, photoperiod, food, "lockdown"). Consequently, whether resulting acclimation shifts correctly those uncertain, sometimes dubious. background history information provides design protocols are not only more relevant, but also serve as templates for testing validity protocols. Finally, we suggest several best practices help enhance realism.生活在季節性環境中的生物經常調整其生理能力和生理敏感性以響應(或預判)環境變化。這些生理和形態上的調整(“馴化”和相關術語)啟發研究者去探索背後的機制、檢測誘導產生這些調整的信号並闡明其生態和進化後果。季節性調整(“季節馴化”)可以通過測量在不同季節從野外(或室外圍欄)採集的生物體的生理能力和生理敏感性來檢測, 也可以間接地通過測量飼養在模擬自然條件的實驗室環境中的生物體來檢測。但在實驗室中模擬自然條件存在諸多困難—需要事先了解與物種生態相關的體溫循環、光週期、食物配給、社會環境等博物學知識。我們認為, 傳統的實驗室條件通常無法準確模擬野外不同季節的環境條件(溫度、光週期、食物、“封鎖”)。因此, 在這些實驗室條件下產生的馴化響應是否接近野外真實發生的情況存在不確定性, 甚至是非常可疑的。我們認為, 了解博物學背景信息有助於设计出更加具有生态相关性的驯化流程, 并应用这些标准化的流程去检验传统驯化流程的缺陷。最後, 我們提出了一些有助於增強生態現實性的方案。.Les organismes vivant dans des environnements saisonniers ajustent souvent leurs capacités et sensibilités physiologiques en réponse (ou prévision de) aux changements environnementaux. De tels ajustements morphologiques (« acclimatation » termes apparentés) offrent l“opportunité d'explorer les mécanismes sous-jacents à ces ajustements, de détecter indices qui induisent d’élucider conséquences écologiques évolutives. Les (“acclimatation saisonnière”) peuvent être détectés soit mesurant d'organismes prélevés directement la enclos extérieurs) différentes saisons, manière moins directe élevant maintenus laboratoire tentent d”imiter ou suivre naturelles. Mais il est difficile reproduire naturelles car faut pour cela connaître cycles température corporelle, photopériode, le régime alimentaire, sociaux, entre autres variables pertinentes d'un point vue écologique. Nous argumentons que traditionnellement utilisées ne parviennent généralement pas se rapprocher saisonnières (température, nourriture, « confinement »). Par conséquent, n“est certain, parfois douteux, écarts d”acclimatation résultent rapprochent correctement ceux nature. soutenons informations base sur l“histoire naturelle possibilité concevoir protocoles sont non seulement plus pertinents plan écologique, mais servent également modèles tester validité traditionnels. Enfin, nous suggérons plusieurs bonnes pratiques aider améliorer réalisme écologique.Organismen, die saisonalen Umgebungen leben, passen häufig ihre physiologischen Fähigkeiten und Sensitivität als Reaktion auf (oder Erwartung von) Umweltveränderungen an. Solche morphologischen Anpassungen („Akklimatisierung“ verwandte Begriffe) bieten Möglichkeit, diesen zugrunde liegenden mechanistischen Grundlagen zu erforschen, Reize erkennen, auslösen, ökologische evolutionäre Konsequenzen aufzuklären. Saisonale („saisonale Akklimatisierung“) können entweder durch Messung der Kapazitäten von Organismen, verschiedenen Jahreszeiten direkt aus Natur Außengehegen) entnommen wurden, oder weniger Aufzucht im Labor unter Bedingungen gehalten werden, eine Nachahmung Nachverfolgung natürlichen anstrebt, detektiert werden. Allerdings ist natürlicher Herausforderung—dies erfordert anderem Kenntnisse über ökologisch relevante Körpertemperaturzyklen, Photoperioden, Nahrungsrationen, sowie das soziale Umfeld. Wir argumentieren, dass traditionelle Laborbedingungen normalerweise nicht den entsprechen (Temperatur, Photoperiode, Nahrung, „Lockdown“). Ob resultierenden Akklimatisierungsverschiebungen denen genau entsprechen, daher ungewiss manchmal zweifelhaft. naturgeschichtliche Hintergrundinformationen Möglichkeiten bieten, Akklimatisierungsprotokolle entwerfen, nur relevanter sind, sondern auch Vorlagen zum Testen Gültigkeit traditioneller Protokolle dienen können. Abschließend schlagen wir mehrere Best Practices vor, um ökologischen Realismus verbessern.Los organismos viven ambientes estacionales pueden ajustar sus capacidades y sensibilidades fisiológicas respuesta (o anticipación) a cambios ambientales. Estos ajustes fisiológicos morfológicos (“aclimatación” términos afines) dan oportunidad para explorar el mecanismo subyace estos ajustes, también detectar las señales inducen tales finalmente dilucidar consecuencias ecológicas evolutivas. Los (“aclimatación estacional”) midiendo los organismos, ya sea especímenes extraídos directamente naturaleza recintos al aire libre) diferentes estaciones, como también, una manera menos directa, criados mantenidos laboratorio bajo condiciones simulan naturales estacionales. Sin embargo, esta simulación es un desafío; hacerlo requiere conocimiento previo historia ciclos temperatura corporal, fotoperíodos, raciones alimentos, entornos sociales, otras ecológicamente relevantes. Argumentamos tradicionales generalmente no aproximan (temperatura, fotoperíodo, comida, “bloqueo”). En consecuencia, incierto y, veces, dudoso si aclimatación resultantes correctamente naturaleza. Así información antecedentes brinda oportunidades diseñar protocolos solo son más relevantes desde punto vista ecológico, sino sirven plantillas probar validez tradicionales. Finalmente, sugerimos varias mejoras prácticas ayudar lograr realismo ecológico optimizado simulaciones laboratorio.

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Seasonal variation of behavioural thermoregulation in a fossorial salamander ( Ambystoma maculatum )

Royal Society Open Science, Journal Year: 2024, Volume and Issue: 11(9)

Published: Sept. 1, 2024

Temperature seasonality plays a pivotal role in shaping the thermal biology of ectotherms. However, we still have limited understanding how ectotherms maintain balance face varying temperatures, especially fossorial species. Due to buffering underground, ecology theory predicts relaxed selection pressure over thermoregulation As result, typically show low thermoregulatory precision and evidence thermotactic behaviours laboratory gradients. Here, evaluated temperature ( T sel ) associated differed between seasons amphibian, spotted salamander Ambystoma maculatum ). By comparing parameters active overwintering seasons, that A. engages behavioural despite being fossorial. In both was consistently offset higher than acclimatization temperatures. Thermoregulation with salamanders having showing greater thermophilic compared season. Additionally, our work lends support experimental assumptions commonly made but seldom tested studies. Ultimately, study demonstrates combination careful measurements is necessary step better understand mechanisms underlie body control amphibians.

Language: Английский

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Environmental temperature predicts resting metabolic rates in tropidurinae lizards

Journal of Experimental Zoology Part A Ecological and Integrative Physiology, Journal Year: 2022, Volume and Issue: 337(9-10), P. 1039 - 1052

Published: Sept. 20, 2022

Abstract Interspecific variation in metabolic rates may be associated with climate, habitat structure, and resource availability. Despite a strong link between ecology physiology, there is dearth the understanding of how costs body maintenance change during ecological transitions. We focused on an ecologically diverse group neotropical lizards (Tropidurinae) to investigate whether resting rate (RMR) evolved under divergent micro‐ macrohabitat conditions. Using phylogenetic framework, we tested species from hot dry habitats had lower RMRs relation those cooler mesic habitats, investigated microhabitat usage effect over mass‐adjusted RMRs. Our results suggest that are not phylogenetically structured Tropidurinae. found no correlation metabolism, precipitation, usage. Species warmer RMR compared supporting mechanism negative compensation responses temperature. Ectotherms can limit energetic demand expenditure through reduced RMR, whereas sustain activity despite thermal constraints via increased RMR. work highlights role temperature shaping lizards, giving additional support notion physiology contexts intertwined.

Language: Английский

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Impacts of behaviour and acclimation of metabolic rate on energetics in sheltered ectotherms: a climate change perspective

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 291(2017)

Published: Feb. 21, 2024

Many ectothermic organisms counter harsh abiotic conditions by seeking refuge in underground retreats. Variations soil hydrothermal properties within these retreats may impact their energy budget, survival and population dynamics. This makes retreat site choice a critical yet understudied component of strategies for coping with climate change. We used mechanistic modelling approach to explore the implications behavioural adjustments seasonal acclimation metabolic rate on depth budget ectotherms, considering both current future conditions. temperate amphibian, alpine newt ( Ichthyosaura alpestris ), as model species. Our simulations predict an interactive influence different thermo- hydroregulatory vertical positioning individuals refuges. The adoption particular strategy largely determines change choice. Additionally, we found that, given thermoregulation/hydroregulation patterns considered, behaviour has greater ectotherm energetics than under scenarios. conclude that further empirical research aimed at determining during surface activity inactivity is needed understand dynamics species viability

Language: Английский

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