Results 1 to 10 of about 1,876 (110)

Synthetic microbial consortia with programmable ecological interactions

open access: yesMethods in Ecology and Evolution, Volume 13, Issue 7, Page 1608-1621, July 2022., 2022
Abstract Central to the composition, structure and function of any microbial community is the complex species interaction web. But understanding the overwhelming complexity of ecological interaction webs has been challenging, owing at least partly to the lack of efficient tools for disentangling species interactions in natural or artificial microbial ...
Shuyao Li   +8 more
wiley   +1 more source

Study on the intestinal microflora of Hyriopsis cumingii(三角帆蚌肠道菌群的研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2006
于不同时间,对绍兴市灵芝镇育珠蚌养殖基地三角帆蚌直肠肠道乳酸杆菌、双歧杆菌、大肠杆菌、金黄色葡萄球菌、产气荚膜梭菌、厌氧活菌总数和好氧活菌总数进行了定性定量分析,并对病蚌和健康蚌、新鲜蚌和清水放养7天蚌、绍兴市灵芝镇蚌和苏州吴江蚌的直肠肠道菌群进行了对比研究,以期为三角帆蚌的生态养殖和疾病控制提供理论依据.结果发现:金黄色葡萄球菌、产气荚膜梭菌为过路菌群,大肠杆菌、乳酸杆菌、双歧杆菌为常住菌群;三角帆蚌的直肠肠道菌群可在肠壁和肠内容物之间随时交流互换,没有菌群和肠壁共生;常住菌群大肠杆菌、乳酸杆菌 ...
YINJun-xia(尹军霞)   +4 more
doaj   +1 more source

In vitro killing of canine strains of Staphylococcus pseudintermedius and Escherichia coli by cefazolin, cefovecin, doxycycline and pradofloxacin over a range of bacterial densities

open access: yesVeterinary Dermatology, Volume 31, Issue 3, Page 187-e39, June 2020., 2020
Background Bacterial densities likely fluctuate during infection and may exceed the bacterial density used in susceptibility testing. As such, investigation of bacterial killing by antibiotics over a range of varying bacterial densities may provide important differences between compounds and could impact drug selection for therapy.
Joseph M. Blondeau, Shantelle D. Fitch
wiley   +1 more source

Biochemical effect of Pr3+ On E. coli(Pr3+对大肠杆菌的生物化学效应)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2010
用微量热法研究Pr3+离子对大肠杆菌的生物化学效应.从生成的热谱图分析可以看出,低剂量的稀土离子Pr3+的存在可以缩短细菌的停滞期,增加生长速率常数和最大放热功率,刺激大肠杆菌的生长.相反,较高剂量的Pr3+延长了细菌的停滞期,减小了生长速率常数和最大放热功率,抑制了大肠杆菌的生长.
HUShan-zhou(胡善洲)   +2 more
doaj   +1 more source

大肠杆菌细胞膜固定相萃取辣木籽抗菌肽Extraction of Moringa oleifera seed antimicrobial peptides by E.coli cell membrane stationary phase

open access: yesZhongguo youzhi, 2022
制备大肠杆菌细胞膜固定相(E.coli cell membrane stationary phase,ECMSP),研究其对辣木籽抗菌肽的萃取效果。研究超声时间、超声功率对大肠杆菌破壁效果的影响,分析大肠杆菌细胞膜与大孔硅胶的吸附特征及ECMSP对辣木籽抗菌肽的吸附效果,明确萃取前后抑菌活力变化及反相-高效液相色谱(RP-HPLC)差异峰。结果表明:在超声功率500 W、超声时间30 min条件下,大肠杆菌破壁效果较好;大孔硅胶对大肠杆菌细胞膜的饱和吸附值(Csmax)为9.98 μg/mg、吸附常数 ...
和丽1,许映月1,陈凤敏1,黄艾祥1,王雪峰1,2 HE Li1, XU Yingyue1, CHEN Fengmin1, HUANG Aixiang1, WANG Xuefeng1,2
doaj   +1 more source

Synergistic Chemodynamic–Photothermal Antibacterial Activity of a Nanozyme Derived From Processed Pyritum

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Pyritum can eliminate blood stasis and promote the healing of muscles and bones, which has been used as a traditional mineral medicine in China for thousands of years. However, the mechanisms of action and processing methods of Pyritum were not illustrated.
Mingxia Li   +8 more
wiley   +1 more source

Laser‐Patterned Antibacterial Microgrids With Silver Nanoparticles for Autonomous Sterilization on Public Escalator Belts

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT The past few decades have witnessed multiple outbreaks of pandemics. Hygiene in public facilities is one of the key factors in maintaining public health security. Escalator belts, as frequently touched by passengers, become a potential medium for spreading pathogens.
Yang Xu   +12 more
wiley   +1 more source

Preparation of Highly Bioactive Nanolignin via Dopamine Mannich Modification and Its Synergistic Effects With Zn2+ in PVA Hydrogels

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Lignin is a natural non‐toxic polyphenolic macromolecule, which shows inherent antioxidant and broad‐spectrum antibacterial activities. However, due to the low content and the high bond dissociation energy of phenolic hydroxyl groups (Ar‐O·H), its antioxidant and antibacterial activities are relatively weak, which limits its application as a ...
Meiling Han   +10 more
wiley   +1 more source

Titanium Implant Abutments With Polydopamine‐Mesoporous Cerium Dioxide Coatings for Enhanced Antibacterial, Anti‐Inflammatory, and Soft Tissue Integration Properties

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The poor soft tissue integration around titanium implants creates a microgap that serves as a pathway for pathogen invasion, resulting in infection, inflammation, and the progression of peri‐implantitis. As the implant’s transmucosal component, the abutment determines the degree of peri‐implant soft tissue attachment.
Xuan Li   +7 more
wiley   +1 more source

貉源大肠杆菌毒力基因的检测与分析

open access: yes野生动物学报, 2021
为了研究中国东北地区貉(Nyctereutes procyonoides)大肠杆菌的流行情况,对56株源自东北地区不同貉养殖场的貉源大肠杆菌进行主要毒力基因的检测与分析,测定其阳性率与分布情况。利用PCR技术法检测貉源大肠杆菌的iucD,irp2,fyuA,fimH,iss,stx1,ybtA,irp1,stx2,eae 10个毒力基因。结果显示iucD,irp2,fyuA,fimH,ybtA的阳性率分别为3929%(22/56),3750%(21/56),5357%(30/56),9821 ...
曲凤仪孙婷庭刘书玉赵振良薛原
doaj  

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