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Recent advances in biomaterials for 3D scaffolds: A review

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Bioactive Materials 2019年第1期4卷 271-292页

作者： Maria P.Nikolova murthy S.chavali Department of Material Science and Technology University of Ruse“A.Kanchev”8 Studentska Str.7000RuseBulgaria Shree Velagapudi Ramakrishna Memorial College(PG Studies Autonomous)Nagaram522268Guntur DistrictIndia PG Department of Chemistry Dharma Appa Rao CollegeNuzvid521201Krishna DistrictIndia MCETRC Tenali522201Guntur DistrictAndhra PradeshIndia

Considering the advantages and disadvantages of biomaterials used for the production of 3D scaffolds for tissue engineering,new strategies for designing advanced functional biomimetic structures have been *** offer a comprehensive summary of recent trends in development of single-(metal,ceramics and polymers),composite-type and cell-laden scaffolds that in addition to mechanical support,promote simultaneous tissue growth,and deliver different molecules(growth factors,cytokines,bioactive ions,genes,drugs,antibiotics,etc.)or cells with therapeutic or facilitating regeneration *** paper briefly focuses on divers 3D bioprinting constructs and the challenges they *** on their application in hard and soft tissue engineering,in vitro and in vivo effects triggered by the structural and biological functionalized biomaterials are *** authors discuss the future outlook for the development of bioactive scaffolds that could pave the way for their successful imposing in clinical therapy.

关键词： Bioactive scaffolds Bone tissue engineering Polymeric biomaterials Bioceramics Bioprinting

Preparation of NiFe_2O_4 nanopowder via EDTA precursor and study of its properties

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Particuology 2012年第1期10卷 29-34页

作者： Amit B.Rajput Subhenjit Hazra Niharika B.Krishna Pavani chavali Sneha Datla Narendra Nath Ghosh Nano-Materials Lab Department of Chemistry BITS-Pilani K.K. Birla Goa Campus

An ethylene diamine tetra acetic acid （EDTA） precursor-based chemical method is reported for prepar- ing single-phase nickel ferrite （NiFe204） nanopowder. The synthesized powder was characterized by thermogravimetric analysis, differential scanning calorimetric analysis, X-ray diffraction, particle size analysis and scanning electron microscopy. DC electrical resistivity and magnetic property of the synthesized NiFe204 were measured by using a two-probe method and a vibrating sample magnetometer respectively. The DC resistivity behaviour of the NiFe204 nanopowder was correlated with the change of microstructure, during sintering. This EDTA precursor-based method is capable of producing nanos- tructured single-phase NiFe204 powder at a comparatively low calcination temperature and offers the potential of a simple and cost-effective route, including the preparation of other ferrite nanoparticles.

关键词： Magnetic materialsChemical synthesisX-ray diffractionMagnetic properties

The proteome landscape of the root cap reveals a role for the jacalin-associated lectin JAL10 in the salt-induced endoplasmic reticulum stress pathway

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Plant Communications 2023年第6期4卷 179-196页

作者： Krishna Kodappully Das Ankita Mohapatra Abin Panackal George Sreenivas chavali Katja Witzel Eswarayya Ramireddy Department of Biology Indian Institute of Science Education and Research(IISER)TirupatiTirupati 517507Andhra PradeshIndia Leibniz Institute of Vegetable and Ornamental Crops Theodor-Echtermeyer-Weg 114979 GroßbeerenGermany

Rapid climate change has led to enhanced soil salinity,one of the major determinants of land degradation,resulting in low agricultural *** has a strong negative impact on food security and environmental *** display various physiological,developmental,and cellular responses to deal with salt *** studies have highlighted the root cap as the primary stress sensor and revealed its crucial role in *** root cap covers the primary root meristem and is the first cell type to sense and respond to soil salinity,relaying the signal to neighboring cell ***,it remains unclear how root-cap cells perceive salt stress and contribute to the salt-stress ***,we performed a root-cap cell-specific proteomics study to identify changes in the proteome caused by salt *** study revealed a very specific salt-stress response pattern in root-cap cells compared with non-rootcap cells and identified several novel proteins unique to the root ***-cap-specific protein–protein interaction(PPI)networks derived by superimposing proteomics data onto known global PPI networks revealed that the endoplasmic reticulum(ER)stress pathway is specifically activated in root-cap cells upon salt ***,we identified root-cap-specific jacalin-associated lectins(JALs)expressed in response to salt stress.A JAL10-GFP fusion protein was shown to be localized to the *** of jal10 mutants indicated a role for JAL10 in regulating the ER stress pathway in response to *** together,our findings highlight the participation of specific root-cap proteins in salt-stress response ***,root-cap-specific JAL proteins and their role in the salt-mediated ER stress pathway open a new avenue for exploring tolerance mechanisms and devising better strategies to increase plant salinity tolerance and enhance agricultural productivity.

关键词： Arabidopsis root cap cell-type specific proteomics salt stress ER stress jacalin-associated lectin

First 100 cases of transvesical single-port robotic radical prostatectomy

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Asian Journal of Urology 2023年第4期10卷 416-422页

作者： Roxana Ramos-Carpinteyro Ethan L.Ferguson Jaya S.chavali Albert Geskin Jihad Kaouk Glickman Urological&Kidney Institute Cleveland Clinic FoundationClevelandOHUSA

Objective:To describe the surgical technique and report the early outcomes of the transvesical(TV)approach to single-port(SP)robot-assisted radical ***:All procedures were performed at a single center by one *** identified the first 100 consecutive patients with clinically localized prostate cancer that underwent SP TV robot-assisted radical prostatectomy using the da Vinci SP robotic surgical *** were collected prospectively and analyzed with descriptive *** primary outcomes assessed were postoperative urinary continence,rate of biochemical recurrence,and sexual ***:All procedures were performed without extra ports or *** median age was 62.1 years and 49.0%of the patients had abdominal surgery *** preoperative median prostate-specific antigen value and prostate volume were 5.0 ng/mL and 33.0 mL,*** were no intraoperative *** median operative time and estimated blood loss were 212.5 min and 100.0 mL,respectively.A total of 92.0%of patients were discharged within 24.0 h,with an overall median length of stay of 5.6 *** 4.0%of patients required opioid prescriptions at *** median Foley catheter duration was 3 *** margins were present in 15.0%of *** follow-up was 10.4 *** rate was immediate after Foley removal in 49.0%of cases,65.0%at 2 weeks,77.4%at 6 weeks,94.1%at 6 months,and 98.9%at 1 *** case of biochemical recurrence(1.0%)was noted 3 months after ***:The SP TV approach for radical prostatectomy cases is a safe and feasible technique for patients with clinically localized prostate *** technique offers advantages of short hospital stay,minimal narcotic use postoperatively,and promising early return of urinary continence,without compromising oncologic outcomes.

关键词： Prostate cancer Radical prostatectomy Robotic-assisted surgery Single-port Minimally-invasive surgery

系统跟踪宏单元在高性能SoC系统调试上更具优势

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中国集成电路 2014年第12期23卷 92-94页

作者： Balatripura chavali Todd Koelling Laura Reese Altera公司

Core Sight TM系统跟踪宏单元(System Trace Macrocell,STM)在7方面要明显优于仪表跟踪宏单元(Instrumentation Trace Macrocell,ITM)。对于在高性能FPGA架构中采用了ARMCortex-A9应用处理器的现代So C FPGA,从性能到数据质量,STM... 详细信息

关键词： SoC系统系统跟踪宏单元性能调试 Trace 优势 FPGA