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Nano/Micro-Structural Supramolecular Biopolymers: Innovative Networks with the Boundless Potential in Sustainable Agriculture

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Nano-Micro Letters 2024年第8期16卷 79-101页

作者： Roohallah Saberi Riseh Mohadeseh Hassanisaadi Masoumeh Vatankhah Rajender S.varma Vijay Kumar Thakur Department of Plant Protection Faculty of AgricultureVali-e-Asr University of RafsanjanImam Khomeini SquareRafsanjan ***Iran Centre of Excellence for Research in Sustainable Chemistry Department of ChemistryFederal University of São CarlosSão CarlosSP 13565‑905Brazil Biorefining and Advanced Materials Research Center Scotland’s Rural Collage(SRUC)Edinburgh EH93JGUK

Sustainable agriculture plays a crucial role in meeting the growing global demand for food while minimizing adverse environmental impacts from the overuse of synthetic pesticides and conventional *** this context,renewable biopolymers being more sustainable offer a viable solution to improve agricultural sustainability and ***/micro-structural supramolecular biopolymers are among these innovative biopolymers that are much sought after for their unique *** biomaterials have complex hierarchical structures,great stability,adjustable mechanical strength,stimuli-responsiveness,and self-healing *** molecules may be added to their flexible structure,for enabling novel agricultural *** overview scrutinizes how nano/micro-structural supramolecular biopolymers may radically alter farming practices and solve lingering problems in agricultural sector namely improve agricultural production,soil health,and resource *** bioactive ingredient released from biopolymers allows the tailored administration of agrochemicals,bioactive agents,and biostimulators as they enhance nutrient absorption,moisture retention,and root ***/micro-structural supramolecular biopolymers may protect crops by appending antimicrobials and biosensing entities while their eco-friendliness supports sustainable *** their potential,further studies are warranted to understand and optimize their usage in agricultural *** effort seeks to bridge the knowledge gap by investigating their applications,challenges,and future prospects in the agricultural *** experimental investigations and theoretical modeling,this overview aims to provide valuable insights into the practical implementation and optimization of supramolecular biopolymers in sustainable agriculture,ultimately contributing to the development of innovative and eco-friendly solutions to enhance agricultural productivity while minimizing envir

关键词： Supramolecular Biopolymers Sustainable agriculture Nanotechnology

解锁奇妙夜哈里亚纳Unlocked Cafe

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室内设计与装修 2020年第7期 94-97页

作者： [印度]Anushka Arora 小麦(编译) 无 Sanjay Arora Vandana Arora Virender Singh akarsh varma Jagdish Bangari Aayush Misra Prarthna Misra Tanushi Goyal Navdisha Kukreja Ayushi Gupta Niveditaa Gupta(摄影) 不详 Renesa Architecture Design Interiors

Unlocked Cafe位于印度古尔冈市新近改建的32号大道旁,设计师从原始的建筑解构中汲取灵感,为餐厅营造了一个充满体积感的和隔而不断的奇妙空间。从推门进入的瞬间,人们就能感受到Unlocked Cafe的独特风格,其融合了餐厅和密室逃脱等功能... 详细信息

Unlocked Cafe位于印度古尔冈市新近改建的32号大道旁,设计师从原始的建筑解构中汲取灵感,为餐厅营造了一个充满体积感的和隔而不断的奇妙空间。从推门进入的瞬间,人们就能感受到Unlocked Cafe的独特风格,其融合了餐厅和密室逃脱等功能的空间,为食客们营造丰富的体验。这是一个充满不确定性的空间,遍布的几何图形为传统印度建筑增添了一抹现代气息。那些形态不一却规则、连续的图形,搭配温暖且充满活力的色彩。

关键词：现代气息体积感不确定性餐厅几何图形独特风格

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啪嗒啪嗒孟买Opium眼镜品牌零售店

室内设计与装修 2020年第8期 14-15页

作者： [印象]Anushka Arora 无 Sa njay Arora(设计) San chit Arora(设计) Vandana Arora(设计) Virender Singh(设计) akarsh varma(设计) Jagdish Bangari(设计) Aayush Misra(设计) Prarthna Misra(设计) Tanushi Goyal(设计) Navdisha Kukreja(设计) Ayushi Gupta(设计) Anushka Arora(设计) Niveditaa Gupta(摄) 不详 Renesa Architecture Design Interiors

该项目是位于印度孟买国际机场2号航站楼里的Opium眼镜品牌零售店。设计师以象征时间和空间的网格为背景,以独特而大胆的设计理念表现了Opium高端而充满活力的品牌精神。设计师认为在零售空间中,展示方式在很大程度上决定了消费者对空... 详细信息

该项目是位于印度孟买国际机场2号航站楼里的Opium眼镜品牌零售店。设计师以象征时间和空间的网格为背景,以独特而大胆的设计理念表现了Opium高端而充满活力的品牌精神。设计师认为在零售空间中,展示方式在很大程度上决定了消费者对空间的印象,进而影响对品牌的认知。

关键词：航站楼国际机场展示方式印度孟买眼镜品牌品牌精神设计理念零售空间

Ethical frontiers in liver transplantation

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World Journal of Transplantation 2024年第4期14卷 50-60页

作者： Hoi Pong Nicholas Wong Surya varma Selvakumar Pei Yi Loh Jovan Yi Jun Liau Matthias Yi Quan Liau Vishalkumar Girishchandra Shelat Lee Kong Chian School of Medicine Nanyang Technological UniversitySingapore 308232Singapore Department of General Surgery Tan Tock Seng HospitalSingapore 308433Singapore Surgical Science Training Centre Tan Tock Seng HospitalSingapore 308433Singapore

Liver transplantation represents a pivotal intervention in the management of end-stage liver disease,offering a lifeline to countless *** significant strides in surgical techniques and organ procurement,ethical dilemmas and de-bates continue to underscore this life-saving *** the ethical terrain surrounding this complex procedure is hence *** the nuances of ethical principles of justice,autonomy and beneficence that underpin transplant protocols worldwide,we explore the modern challenges that plaques the world of liver *** investigate the ethical dimensions of organ transplantation,focusing on allocation,emerging technologies,and decision-making ***,Scopus,Web of Science,Embase and Central were searched from database inception to February 29,2024 using the following key-words:“liver transplant”,“transplantation”,“liver donation”,“liver recipient”,“organ donation”and“ethics”.Information from relevant articles surrounding ethical discussions in the realm of liver transplantation,especially with regards to organ recipients and allocation,organ donation,transplant tourism,new age technologies and developments,were *** the definition of death to the long term follow up of organ recipients,liver transplantation has many ethical *** new transplant techniques,societal acceptance and perceptions also play a pivotal ***,religious and regional factors including but not limited to beliefs,wealth and accessibility are extremely influential in public at-titudes towards donation,xenotransplantation,stem cell research,and adopting artificial *** and addressing these perspectives whilst upholding bioethical principles is essential to ensure just distribution and fair allocation of *** regulatory oversight for ethical sourcing of organs,ensuring good patient selection and transplant techniques,and high-quality long-term surveillance to mitiga

关键词： “liver transplant” “transplan-tation” “liver donation” “liver recipient” “organ donation”and“ethics”

MXene-Based Composites as Nanozymes in Biomedicine: A Perspective

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Nano-Micro Letters 2022年第12期14卷 447-463页

作者： Siavash Iravani Rajender S.varma Faculty of Pharmacy and Pharmaceutical Sciences Isfahan University of Medical SciencesIsfahanIran Regional Centre of Advanced Technologies and Materials Department of Physical ChemistryFaculty of SciencePalacky University in OlomoucSlechtitelu2778371 OlomoucCzech Republic

MXene-based nanozymes have garnered considerable attention because of their potential environmental and biomedical *** materials encompass alluring and manageable catalytic performances and physicochemical features,which make them suitable as(bio)sensors with high selectivity/sensitivity and ***-based structures with suitable electrical conductivity,biocompatibility,large surface area,optical/magnetic properties,and thermal/mechanical features can be applied in designing innovative nanozymes with area-dependent electrocatalytic *** the advances made,there is still a long way to deploy MXene-based nanozymes,especially in medical and healthcare applications;limitations pertaining the peroxidaselike activity and sensitivity/selectivity may restrict further practical applications of pristine ***,developing an efficient surface engineering tactic is still required to fabricate multifunctional MXene-based nanozymes with excellent *** obtain MXene-based nanozymes with unique physicochemical features and high stability,some crucial steps such as hybridization and modification ought to be ***,(nano)toxicological and long-term biosafety analyses along with clinical translation studies still need to be comprehensively *** very limited reports exist pertaining to the biomedical potentials of MXene-based nanozymes,the future explorations should transition toward the extensive research and detailed analyses to realize additional potentials of these structures in biomedicine with a focus on clinical and industrial *** this perspective,therapeutic,diagnostic,and theranostic applications of MXene-based nanozymes are deliberated with a focus on future per-spectives toward more successful clinical translational *** current state-of-the-art biomedical advances in the use of MXene-based nanozymes,as well as their developmental challenges and future prospects are also *** v

关键词： MXenes MXene-based nanozymes Therapeutics Diagnostics Theranostics

Effect of plastic deformation on microstructure and thermoelectric properties of Mg_(2)Sn alloys

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Journal of Magnesium and Alloys 2021年第1期9卷 123-129页

作者： Rameshkumar varma Sitarama Kada Matthew Barnett Institute for Frontier Materials Deakin UniversityGeelongVictoriaAustralia

In the present work,the effect of deformation on microstructure and thermoelectric properties of Mg 2 Sn alloys having excess magnesium concentrations is *** cast alloys were prepared using radio-frequency(RF)induction melting under an argon *** alloys were thermo-mechanically processed via compression at different temperatures to various true *** room temperature,the alloys failed at a true strain of∼13%.However,at elevated temperatures,the alloys were observed to be highly *** alloys compressed at 673 K to a true strain of 1,a prominent substructure *** subgrain size was∼3-5μ*** is believed that the substructure arose from the action of dynamic *** deformation,the thermoelectric performance of alloy prepared with 6.7 wt.%excess Mg was improved compared to the as cast *** can be ascribed to a reduction in the thermal conductivity due to phonon scattering at grain boundaries.

关键词： Magnesium Thermoelectric Deformation Grain size

Wetting of MXenes and Beyond

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Nano-Micro Letters 2023年第8期15卷 141-153页

作者： Massoud Malaki Rajender S.varma Department of Mechanical Engineering Isfahan University of TechnologyDaneshgah e Sanati HwyKhomeyni ShahrIsfahan 84156‑83111Iran Regional Centre of Advanced Technologies and Materials Palacky University in OlomoucŠlechtitelů2778371 OlomoucCzech Republic

MXenes are a class of 2D nanomaterials with exceptional tailormade properties such as mechano-ceramic nature,rich chemistry,and hydrophilicity,to name a ***,one of the most challenging issues in any composite/hybrid system is the interfacial *** a superior integrity of a given composite system is a direct consequence of the proper *** wetting is a fundamental feature,dictating many physical and chemical attributes,most of the common nanomaterials possesses poor affinity due to hydrophobic nature,making them hard to be easily dispersed in a given *** to low contact angle,MXenes can offer themselves as an ideal candidate for manufacturing different nano-hybrid *** this review,it is aimed to particularly study the wettability of *** terms of the layout of the present study,MXenes are first briefly introduced,and then,the wettability phenomenon is discussed in *** reviewing the sporadic research efforts conducted to date,a particular attention is paid on the current challenges and research pitfalls to light up the future *** is strongly believed that taking the advantage of MXene’s rich hydrophilic surface may have a revolutionizing role in the fabrication of advanced materials with exceptional features.

关键词： MXene Wetting Hydrophilicity Composites 2D material

Plant Pollen Grains:A Move Towards Green Drug and Vaccine Delivery Systems

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Nano-Micro Letters 2021年第8期13卷 218-230页

作者： Siavash Iravani Rajender S.varma Faculty of Pharmacy and Pharmaceutical Sciences Isfahan University of Medical SciencesIsfahanIran Regional Centre of Advanced Technologies and Materials Czech Advanced Technology and Research InstitutePalackýUniversity in OlomoucŠlechtitelů2778371 OlomoucCzech Republic

Pollen grains and plant spores have emerged as innovative biomaterials for various applications such as drug/vaccine delivery,catalyst support,and the removal of heavy *** natural microcapsules comprising spore shells and pollen grain are designed for protecting the genetic materials of plants from exterior *** layers make up the shell,the outer layer(exine)that comprised largely of sporopollenin,and the inner layer(intine)that built chiefly of *** microcapsule shells,namely hollow sporopollenin exine capsules have some salient features such as homogeneity in size,non-toxic nature,resilience to both alkalis and acids,and the potential to withstand at elevated temperatures;they have displayed promising potential for the microencapsulation and the controlled drug delivery/*** important attribute of mucoadhesion to intestinal tissues can prolong the interaction of sporopollenin with the intestinal mucosa directing to an augmented effectiveness of nutraceutical or drug ***,current trends and prospects related to the application of plant pollen grains for the delivery of vaccines and drugs and vaccine are discussed.

关键词： Pollens Sporopollenin Drug delivery Vaccine delivery Plant pollen grains Microcapsule shells

Recent advances in catalytic combustion of AP-based composite solid propellants

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Defence Technology（防务技术） 2021年第3期17卷 1013-1031页

作者： Narendra Yadav Prem Kumar Srivastava Mohan varma Department of Space Engineering&Rocketry India Department of Chemistry Birla Institute of TechnologyMesraRanchiIndia

Composite solid propellants(CSPs) have widely been used as main energy source for propelling the rockets in both space and military applications. Internal ballistic parameters of rockets like characteristic exhaust velocity, specific impulse, thrust, burning rate etc., are measured to assess and control the performance of rocket motors. The burn rate of solid propellants has been considered as most vital parameter for design of solid rocket motors to meet specific mission requirements. The burning rate of solid propellants can be tailored by using different constituents, extent of oxidizer loading and its particle size and more commonly by incorporating suitable combustion catalysts. Various metal oxides(MOs),complexes, metal powders and metal alloys have shown positive catalytic behaviour during the combustion of CSPs. These are usually solid-state catalysts that play multiple roles in combustion of CSPs such as reduction in activation energy, enhancement of rate of reaction, modification of sequences in reaction-phase, influence on condensed-phase combustion and participation in combustion process in gas-phase reactions. The application of nanoscale catalysts in CSPs has increased considerably in recent past due to their superior catalytic properties as compared to their bulk-sized counterparts. A large surface-to-volume ratio and quantum size effect of nanocatalysts are considered to be plausible reasons for improving the combustion characteristics of propellants. Several efforts have been made to produce nanoscale combustion catalysts for advanced propellant formulations to improve their energetics. The work done so far is largely scattered. In this review, an effort has been made to introduce various combustion catalysts having at least a metallic entity. Recent developments of nanoscale combustion catalysts with their specific merits are discussed. The combustion chemistry of a typical CSP is briefly discussed for providing a better understanding on role of co

关键词： Composite solid propellants Burn rate modifier Metallic nano-catalysts Catalytic combustion Thermal decomposition